version 0.22.1

This matches the behavior of GNOME based clients and in any case sway
seems to get very confused if CSD is drawn.

Fixes #3888

.gitattributes

@@ -1,6 +1,5 @@
 kitty/wcwidth-std.h linguist-generated=true
 kitty/emoji.h linguist-generated=true
-kitty/keys.h linguist-generated=true
 kitty/charsets.c linguist-generated=true
 kitty/key_encoding.py linguist-generated=true
 kitty/unicode-data.c linguist-generated=true
@@ -8,6 +7,14 @@ kitty/rgb.py linguist-generated=true
 kitty/gl-wrapper.* linguist-generated=true
 kitty/glfw-wrapper.* linguist-generated=true
 kitty/parse-graphics-command.h linguist-generated=true
+kitty/options/types.py linguist-generated=true
+kitty/options/parse.py linguist-generated=true
+kitty/options/to-c-generated.h linguist-generated=true
+kittens/diff/options/types.py linguist-generated=true
+kittens/diff/options/parse.py linguist-generated=true
 glfw/*.c linguist-vendored=true
 glfw/*.h linguist-vendored=true
 kittens/unicode_input/names.h linguist-generated=true
+
+*.py  text diff=python
+*.m  text diff=objc

.github/ISSUE_TEMPLATE/bug_report.md

@@ -17,17 +17,15 @@ Steps to reproduce the behavior:
 3. ZZZ
 4. See error
 
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
 **Screenshots**
 If applicable, add screenshots to help explain your problem.
 
 **Environment details**
-OS: Name and version of operating system(s)
-
 ```
-Output of kitty --debug-config
+Press Ctrl+Shift+F6 (cmd+option+, on macOS) in kitty, to copy debug output about kitty and its
+configuration to the clipboard and paste it here. 
+
+On older versions of kitty, run kitty --debug-config instead
 ```
 
 **Additional context**

.github/workflows/ci.py

@@ -35,12 +35,18 @@ def install_deps():
     else:
         run('sudo apt-get update')
         run('sudo apt-get install -y libgl1-mesa-dev libxi-dev libxrandr-dev libxinerama-dev'
-            ' libxcursor-dev libxcb-xkb-dev libdbus-1-dev libxkbcommon-dev libharfbuzz-dev'
-            ' libpng-dev liblcms2-dev libfontconfig-dev libxkbcommon-x11-dev libcanberra-dev')
+            ' libxcursor-dev libxcb-xkb-dev libdbus-1-dev libxkbcommon-dev libharfbuzz-dev libx11-xcb-dev'
+            ' libpng-dev liblcms2-dev libfontconfig-dev libxkbcommon-x11-dev libcanberra-dev uuid-dev')
     if is_bundle:
         install_bundle()
     else:
-        run('pip3 install Pillow pygments')
+        if is_macos:
+            # needed for zlib for pillow, should not be needed after pillow 8.0
+            os.environ['PKG_CONFIG_PATH'] = '/usr/local/opt/zlib/lib/pkgconfig'
+        cmd = 'pip3 install Pillow pygments'
+        if sys.version_info[:2] < (3, 7):
+            cmd += ' importlib-resources'
+        run(cmd)
 
 
 def build_kitty():

.github/workflows/ci.yml

@@ -76,7 +76,7 @@ jobs:
                 python-version: 3.8
 
             - name: Install build-only deps
-              run: pip install flake8 mypy sphinx
+              run: pip install -r docs/requirements.txt flake8 mypy types-requests types-docutils
 
             - name: Run pyflakes
               run: python -m flake8 --count .

Brewfile

@@ -1,4 +1,5 @@
 pkg-config
+zlib
 python
 imagemagick
 harfbuzz

CHANGELOG.rst

@@ -1 +1 @@
-See https://sw.kovidgoyal.net/kitty/changelog.html
+See https://sw.kovidgoyal.net/kitty/changelog/

CONTRIBUTING.md

@@ -10,9 +10,9 @@ config to reproduce the issue with).
 
 ### Contributing code
 
-Install [the dependencies](https://sw.kovidgoyal.net/kitty/build.html#dependencies)
+Install [the dependencies](https://sw.kovidgoyal.net/kitty/build/#dependencies)
 using your favorite package manager. Build and run kitty [from
-source](https://sw.kovidgoyal.net/kitty/build.html#install-and-run-from-source).
+source](https://sw.kovidgoyal.net/kitty/build/#install-and-run-from-source).
 
 Make a fork, submit your Pull Request. If it's a large/controversial change, open an issue
 beforehand to discuss it, so that you don't waste your time making a pull

INSTALL.md

@@ -1,3 +1,3 @@
-To build from source: <https://sw.kovidgoyal.net/kitty/build.html>
+To build from source: <https://sw.kovidgoyal.net/kitty/build/>
 
-Pre-built binaries: <https://sw.kovidgoyal.net/kitty/binary.html>
+Pre-built binaries: <https://sw.kovidgoyal.net/kitty/binary/>

Makefile

@@ -40,4 +40,11 @@ html:
 linkcheck:
 	$(MAKE) FAIL_WARN=$(FAIL_WARN) -C docs linkcheck
 
+website:
+	./publish.py --only website
+
 docs: man html
+
+
+develop-docs:
+	$(MAKE) -C docs develop-docs

README.asciidoc

@@ -1,5 +1,14 @@
-= kitty - the fast, featureful, GPU based, terminal emulator
+= kitty - the fast, feature-rich, cross-platform, GPU based terminal
 
-See https://sw.kovidgoyal.net/kitty/
+See https://sw.kovidgoyal.net/kitty/[the kitty website].
 
 image:https://github.com/kovidgoyal/kitty/workflows/CI/badge.svg["Build status", link="https://github.com/kovidgoyal/kitty/actions?query=workflow%3ACI"]
+
+https://sw.kovidgoyal.net/kitty/faq/[Frequently Asked Questions]
+
+To ask other questions about kitty usage, use either the https://github.com/kovidgoyal/kitty/discussions/[discussions on GitHub] or the
+https://www.reddit.com/r/KittyTerminal[Reddit community]
+
+Packaging status in various repositories:
+
+image:https://repology.org/badge/vertical-allrepos/kitty.svg[https://repology.org/project/kitty/versions]

SECURITY.md

@@ -0,0 +1,12 @@
+# Security Policy
+
+## Supported Versions
+
+There are no security specific releases of kitty. Security bugs are fixed
+and released just like all other bugs.
+
+## Reporting a vulnerability
+
+Preferably send an email to kovid at kovidgoyal.net or open an issue in the
+GitHub repository, though the latter means you are disclosing the vulnerability
+publicly before it can be fixed.

__main__.py

@@ -2,8 +2,8 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2015, Kovid Goyal <kovid at kovidgoyal.net>
 
-import sys
 import os
+import sys
 from typing import List
 
 
@@ -30,8 +30,14 @@ def runpy(args: List[str]) -> None:
 
 def hold(args: List[str]) -> None:
     import subprocess
+    import tty
+    from contextlib import suppress
     ret = subprocess.Popen(args[1:]).wait()
-    sys.stdin.read()
+    with suppress(BaseException):
+        print('\n\x1b[1;32mPress any key to exit', end='', flush=True)
+    with suppress(BaseException):
+        tty.setraw(sys.stdin.fileno())
+        sys.stdin.buffer.read(1)
     raise SystemExit(ret)
 
 
@@ -43,13 +49,22 @@ def complete(args: List[str]) -> None:
 def launch(args: List[str]) -> None:
     import runpy
     sys.argv = args[1:]
-    exe = args[1]
+    try:
+        exe = args[1]
+    except IndexError:
+        raise SystemExit(
+            'usage: kitty +launch script.py [arguments to be passed to script.py ...]\n\n'
+            'script.py will be run with full access to kitty code. If script.py is '
+            'prefixed with a : it will be searched for in PATH'
+        )
     if exe.startswith(':'):
         import shutil
         q = shutil.which(exe[1:])
         if not q:
-            raise SystemExit('{} not found in PATH'.format(args[1][1:]))
+            raise SystemExit(f'{exe[1:]} not found in PATH')
         exe = q
+    if not os.path.exists(exe):
+        raise SystemExit(f'{exe} does not exist')
     runpy.run_path(exe, run_name='__main__')
 
 
@@ -65,9 +80,23 @@ def run_kitten(args: List[str]) -> None:
     rk(kitten)
 
 
+def edit_config_file(args: List[str]) -> None:
+    from kitty.cli import create_default_opts
+    from kitty.fast_data_types import set_options
+    from kitty.utils import edit_config_file as f
+    set_options(create_default_opts())
+    f()
+
+
 def namespaced(args: List[str]) -> None:
-    func = namespaced_entry_points[args[1]]
-    func(args[1:])
+    try:
+        func = namespaced_entry_points[args[1]]
+    except KeyError:
+        pass
+    else:
+        func(args[1:])
+        return
+    raise SystemExit(f'{args[1]} is not a known entry point. Choices are: ' + ', '.join(namespaced_entry_points))
 
 
 entry_points = {
@@ -77,6 +106,7 @@ entry_points = {
     'runpy': runpy,
     'launch': launch,
     'kitten': run_kitten,
+    'edit-config': edit_config_file,
 
     '@': remote_control,
     '+': namespaced,

bypy/init_env.py

@@ -4,15 +4,17 @@
 
 import os
 import re
+import shlex
 import shutil
 import subprocess
 import sys
+import tempfile
 from contextlib import suppress
 
 from bypy.constants import (
     LIBDIR, PREFIX, PYTHON, SRC as KITTY_DIR, ismacos, worker_env
 )
-from bypy.utils import run_shell
+from bypy.utils import run_shell, walk
 
 
 def read_src_file(name):
@@ -40,52 +42,69 @@ def run(*args, **extra_env):
     if ismacos:
         env['PKGCONFIG_EXE'] = os.path.join(PREFIX, 'bin', 'pkg-config')
     cwd = env.pop('cwd', KITTY_DIR)
+    print(' '.join(map(shlex.quote, args)), flush=True)
     return subprocess.call(list(args), env=env, cwd=cwd)
 
 
+SETUP_CMD = [PYTHON, 'setup.py', '--build-universal-binary']
+
+
+def build_frozen_launcher(extra_include_dirs):
+    inc_dirs = [f'--extra-include-dirs={x}' for x in extra_include_dirs]
+    cmd = SETUP_CMD + ['--prefix', build_frozen_launcher.prefix] + inc_dirs + ['build-frozen-launcher']
+    if run(*cmd, cwd=build_frozen_launcher.writeable_src_dir) != 0:
+        print('Building of frozen kitty launcher failed', file=sys.stderr)
+        os.chdir(KITTY_DIR)
+        run_shell()
+        raise SystemExit('Building of kitty launcher failed')
+    return build_frozen_launcher.writeable_src_dir
+
+
+def run_tests(kitty_exe):
+    with tempfile.TemporaryDirectory() as tdir:
+        env = {
+            'KITTY_CONFIG_DIRECTORY': os.path.join(tdir, 'conf'),
+            'KITTY_CACHE_DIRECTORY': os.path.join(tdir, 'cache')
+        }
+        [os.mkdir(x) for x in env.values()]
+        cmd = [kitty_exe, '+runpy', 'from kitty_tests.main import run_tests; run_tests()']
+        print(*map(shlex.quote, cmd), flush=True)
+        if subprocess.call(cmd, env=env) != 0:
+            print('Checking of kitty build failed', file=sys.stderr)
+            os.chdir(os.path.dirname(kitty_exe))
+            run_shell()
+            raise SystemExit('Checking of kitty build failed')
+
+
+def sanitize_source_folder(path: str) -> None:
+    for q in walk(path):
+        if os.path.splitext(q)[1] not in ('.py', '.glsl', '.ttf', '.otf'):
+            os.unlink(q)
+
+
 def build_c_extensions(ext_dir, args):
     writeable_src_dir = os.path.join(ext_dir, 'src')
+    build_frozen_launcher.writeable_src_dir = writeable_src_dir
     shutil.copytree(
         KITTY_DIR, writeable_src_dir, symlinks=True,
-        ignore=shutil.ignore_patterns('b', 'build', 'dist', '*_commands.json', '*.o'))
+        ignore=shutil.ignore_patterns('b', 'build', 'dist', '*_commands.json', '*.o', '*.so', '*.dylib', '*.pyd'))
 
-    # Build the launcher as it is needed for the spawn test
     with suppress(FileNotFoundError):
-        os.remove(os.path.join(writeable_src_dir, 'kitty', 'launcher', 'kitty'))
-    if run(PYTHON, 'setup.py', 'build-launcher', cwd=writeable_src_dir) != 0:
-        print('Building of kitty launcher failed', file=sys.stderr)
-        os.chdir(KITTY_DIR)
-        run_shell()
-        raise SystemExit('Building of kitty launcher failed')
+        os.unlink(os.path.join(writeable_src_dir, 'kitty', 'launcher', 'kitty'))
 
-    cmd = [PYTHON, 'setup.py']
-    bundle = 'macos-freeze' if ismacos else 'linux-freeze'
-    cmd.append(bundle)
+    cmd = SETUP_CMD + ['macos-freeze' if ismacos else 'linux-freeze']
+    if args.dont_strip:
+        cmd.append('--debug')
     dest = kitty_constants['appname'] + ('.app' if ismacos else '')
-    dest = os.path.join(ext_dir, dest)
-    cmd += ['--prefix', dest]
+    dest = build_frozen_launcher.prefix = os.path.join(ext_dir, dest)
+    cmd += ['--prefix', dest, '--full']
     if run(*cmd, cwd=writeable_src_dir) != 0:
         print('Building of kitty package failed', file=sys.stderr)
-        os.chdir(KITTY_DIR)
+        os.chdir(writeable_src_dir)
         run_shell()
         raise SystemExit('Building of kitty package failed')
     return ext_dir
 
 
-def run_tests(path_to_kitty, cwd_on_failure):
-    kw = {'cwd': cwd_on_failure}
-    if not ismacos:
-        # this is needed for the spawn test which starts an interpreter
-        # using the kitty launcher.
-        kw['PYTHONHOME'] = PREFIX
-    ret = run(PYTHON, 'test.py', **kw)
-    if ret != 0:
-        os.chdir(cwd_on_failure)
-        print(
-            'running kitty tests failed with return code:', ret, file=sys.stderr)
-        run_shell()
-        raise SystemExit('running kitty tests failed')
-
-
 if __name__ == 'program':
     kitty_constants = initialize_constants()

bypy/linux/__main__.py

@@ -13,12 +13,14 @@ import time
 from bypy.constants import (
     OUTPUT_DIR, PREFIX, is64bit, python_major_minor_version
 )
-from bypy.utils import get_dll_path, py_compile, walk
+from bypy.freeze import (
+    extract_extension_modules, freeze_python, path_to_freeze_dir
+)
+from bypy.utils import get_dll_path, mkdtemp, py_compile, walk
 
 j = os.path.join
-self_dir = os.path.dirname(os.path.abspath(__file__))
 arch = 'x86_64' if is64bit else 'i686'
-
+self_dir = os.path.dirname(os.path.abspath(__file__))
 py_ver = '.'.join(map(str, python_major_minor_version()))
 iv = globals()['init_env']
 kitty_constants = iv['kitty_constants']
@@ -26,14 +28,10 @@ kitty_constants = iv['kitty_constants']
 
 def binary_includes():
     return tuple(map(get_dll_path, (
-            'expat', 'sqlite3', 'ffi', 'z', 'lzma', 'png16', 'lcms2',
-
-            # dont include freetype because fontconfig is closely coupled to it
-            # and also distros often patch freetype
-            # 'iconv.so.2', 'pcre.so.1', 'graphite2.so.3', 'glib-2.0.so.0', 'freetype.so.6',
-
+            'expat', 'sqlite3', 'ffi', 'z', 'lzma', 'png16', 'lcms2', 'crypt',
+            'iconv', 'pcre', 'graphite2', 'glib-2.0', 'freetype',
             'harfbuzz', 'xkbcommon', 'xkbcommon-x11',
-            'ncursesw', 'readline',
+            'ncursesw', 'readline', 'brotlicommon', 'brotlienc', 'brotlidec'
         ))) + (
                 get_dll_path('bz2', 2), get_dll_path('ssl', 2), get_dll_path('crypto', 2),
                 get_dll_path('python' + py_ver, 2),
@@ -48,6 +46,7 @@ class Env:
         self.py_dir = j(self.lib_dir, 'python' + py_ver)
         os.makedirs(self.py_dir)
         self.bin_dir = j(self.base, 'bin')
+        self.obj_dir = mkdtemp('launchers-')
 
 
 def ignore_in_lib(base, items, ignored_dirs=None):
@@ -75,7 +74,7 @@ def import_site_packages(srcdir, dest):
         if ext in ('py', 'so'):
             shutil.copy2(f, dest)
         elif ext == 'pth' and x != 'setuptools.pth':
-            for line in open(f, 'rb').read().splitlines():
+            for line in open(f):
                 src = os.path.abspath(j(srcdir, line))
                 if os.path.exists(src) and os.path.isdir(src):
                     import_site_packages(src, dest)
@@ -89,6 +88,8 @@ def copy_libs(env):
     for x in binary_includes():
         dest = env.bin_dir if '/bin/' in x else env.lib_dir
         shutil.copy2(x, dest)
+        dest = os.path.join(dest, os.path.basename(x))
+        subprocess.check_call(['chrpath', '-d', dest])
 
 
 def copy_python(env):
@@ -105,10 +106,31 @@ def copy_python(env):
             shutil.copy2(y, env.py_dir)
 
     srcdir = j(srcdir, 'site-packages')
-    dest = j(env.py_dir, 'site-packages')
-    import_site_packages(srcdir, dest)
+    site_packages_dir = j(env.py_dir, 'site-packages')
+    import_site_packages(srcdir, site_packages_dir)
+
+    pdir = os.path.join(env.lib_dir, 'kitty-extensions')
+    os.makedirs(pdir, exist_ok=True)
+    kitty_dir = os.path.join(env.lib_dir, 'kitty')
+    bases = ('kitty', 'kittens', 'kitty_tests')
+    for x in bases:
+        dest = os.path.join(env.py_dir, x)
+        os.rename(os.path.join(kitty_dir, x), dest)
+        if x == 'kitty':
+            shutil.rmtree(os.path.join(dest, 'launcher'))
+    os.rename(os.path.join(kitty_dir, '__main__.py'), os.path.join(env.py_dir, 'kitty_main.py'))
+    shutil.rmtree(os.path.join(kitty_dir, '__pycache__'))
+    print('Extracting extension modules from', env.py_dir, 'to', pdir)
+    ext_map = extract_extension_modules(env.py_dir, pdir)
+    shutil.copy(os.path.join(os.path.dirname(self_dir), 'site.py'), os.path.join(env.py_dir, 'site.py'))
+    for x in bases:
+        iv['sanitize_source_folder'](os.path.join(env.py_dir, x))
     py_compile(env.py_dir)
-    py_compile(os.path.join(env.base, 'lib', 'kitty'))
+    freeze_python(env.py_dir, pdir, env.obj_dir, ext_map, develop_mode_env_var='KITTY_DEVELOP_FROM', remove_pyc_files=True)
+
+
+def build_launcher(env):
+    iv['build_frozen_launcher']([path_to_freeze_dir(), env.obj_dir])
 
 
 def is_elf(path):
@@ -192,16 +214,16 @@ def create_tarfile(env, compression_level='9'):
 def main():
     args = globals()['args']
     ext_dir = globals()['ext_dir']
-    if not args.skip_tests:
-        run_tests = iv['run_tests']
-        run_tests(None, os.path.join(ext_dir, 'src'))
     env = Env(os.path.join(ext_dir, kitty_constants['appname']))
     copy_libs(env)
     copy_python(env)
+    build_launcher(env)
     files = find_binaries(env)
     fix_permissions(files)
     if not args.dont_strip:
         strip_binaries(files)
+    if not args.skip_tests:
+        iv['run_tests'](os.path.join(env.base, 'bin', 'kitty'))
     create_tarfile(env, args.compression_level)
 
 

bypy/macos.conf

@@ -1,6 +1,8 @@
 # Requires installation of XCode 10.3 and Python 3 and
 # python3 -m pip install certifi
 
-vm_name 'macos-kitty-build'
+vm_name 'macos-kitty'
 root '/Users/Shared/kitty-build'
 python '/usr/local/bin/python3'
+universal 'true'
+deploy_target '10.14'

bypy/macos/__main__.py

@@ -13,16 +13,23 @@ import tempfile
 import zipfile
 
 from bypy.constants import PREFIX, PYTHON, SW, python_major_minor_version
+from bypy.freeze import (
+    extract_extension_modules, freeze_python, path_to_freeze_dir
+)
 from bypy.macos_sign import (
     codesign, create_entitlements_file, make_certificate_useable, notarize_app,
     verify_signature
 )
-from bypy.utils import current_dir, py_compile, run_shell, timeit, walk
+from bypy.utils import (
+    current_dir, mkdtemp, py_compile, run_shell, timeit, walk
+)
 
 iv = globals()['init_env']
 kitty_constants = iv['kitty_constants']
+self_dir = os.path.dirname(os.path.abspath(__file__))
 join = os.path.join
 basename = os.path.basename
+dirname = os.path.dirname
 abspath = os.path.abspath
 APPNAME = kitty_constants['appname']
 VERSION = kitty_constants['version']
@@ -134,8 +141,9 @@ class Freeze(object):
 
     FID = '@executable_path/../Frameworks'
 
-    def __init__(self, build_dir, dont_strip=False, sign_installers=False, notarize=False):
+    def __init__(self, build_dir, dont_strip=False, sign_installers=False, notarize=False, skip_tests=False):
         self.build_dir = build_dir
+        self.skip_tests = skip_tests
         self.sign_installers = sign_installers
         self.notarize = notarize
         self.dont_strip = dont_strip
@@ -147,6 +155,7 @@ class Freeze(object):
         self.py_ver = py_ver
         self.python_stdlib = join(self.resources_dir, 'Python', 'lib', 'python' + self.py_ver)
         self.site_packages = self.python_stdlib  # hack to avoid needing to add site-packages to path
+        self.obj_dir = mkdtemp('launchers-')
 
         self.run()
 
@@ -160,10 +169,11 @@ class Freeze(object):
         self.add_site_packages()
         self.add_stdlib()
         self.add_misc_libraries()
-        self.compile_py_modules()
-        self.fix_dependencies_in_kitty()
+        self.freeze_python()
         if not self.dont_strip:
             self.strip_files()
+        if not self.skip_tests:
+            self.run_tests()
         # self.run_shell()
 
         ret = self.makedmg(self.build_dir, APPNAME + '-' + VERSION)
@@ -175,6 +185,10 @@ class Freeze(object):
         print('\nStripping files...')
         strip_files(self.to_strip)
 
+    @flush
+    def run_tests(self):
+        iv['run_tests'](os.path.join(self.contents_dir, 'MacOS', 'kitty'))
+
     @flush
     def set_id(self, path_to_lib, new_id):
         old_mode = flipwritable(path_to_lib)
@@ -239,7 +253,6 @@ class Freeze(object):
         self.set_id(
             join(currd, 'Python'),
             self.FID + '/Python.framework/Versions/%s/Python' % basename(curr))
-        self.fix_dependencies_in_lib(join(self.contents_dir, 'MacOS', 'kitty'))
         # The following is needed for codesign
         with current_dir(x):
             os.symlink(basename(curr), 'Versions/Current')
@@ -273,11 +286,6 @@ class Freeze(object):
             dest = join(self.frameworks_dir, x)
             self.set_id(dest, self.FID + '/' + x)
             self.fix_dependencies_in_lib(dest)
-        base = join(self.frameworks_dir, 'kitty')
-        for lib in walk(base):
-            if lib.endswith('.so'):
-                self.set_id(lib, self.FID + '/' + os.path.relpath(lib, self.frameworks_dir))
-                self.fix_dependencies_in_lib(lib)
 
     @flush
     def add_package_dir(self, x, dest=None):
@@ -295,21 +303,10 @@ class Freeze(object):
             dest = self.site_packages
         dest = join(dest, basename(x))
         shutil.copytree(x, dest, symlinks=True, ignore=ignore)
-        self.postprocess_package(x, dest)
         for f in walk(dest):
             if f.endswith('.so'):
                 self.fix_dependencies_in_lib(f)
 
-    @flush
-    def fix_dependencies_in_kitty(self):
-        for f in walk(join(self.resources_dir, 'kitty')):
-            if f.endswith('.so'):
-                self.fix_dependencies_in_lib(f)
-
-    @flush
-    def postprocess_package(self, src_path, dest_path):
-        pass
-
     @flush
     def add_stdlib(self):
         print('\nAdding python stdlib')
@@ -331,6 +328,35 @@ class Freeze(object):
                 if dest2.endswith('.so'):
                     self.fix_dependencies_in_lib(dest2)
 
+    @flush
+    def freeze_python(self):
+        print('\nFreezing python')
+        kitty_dir = join(self.resources_dir, 'kitty')
+        bases = ('kitty', 'kittens', 'kitty_tests')
+        for x in bases:
+            dest = os.path.join(self.python_stdlib, x)
+            os.rename(os.path.join(kitty_dir, x), dest)
+            if x == 'kitty':
+                shutil.rmtree(os.path.join(dest, 'launcher'))
+        os.rename(os.path.join(kitty_dir, '__main__.py'), os.path.join(self.python_stdlib, 'kitty_main.py'))
+        shutil.rmtree(os.path.join(kitty_dir, '__pycache__'))
+        pdir = os.path.join(dirname(self.python_stdlib), 'kitty-extensions')
+        os.mkdir(pdir)
+        print('Extracting extension modules from', self.python_stdlib, 'to', pdir)
+        ext_map = extract_extension_modules(self.python_stdlib, pdir)
+        shutil.copy(os.path.join(os.path.dirname(self_dir), 'site.py'), os.path.join(self.python_stdlib, 'site.py'))
+        for x in bases:
+            iv['sanitize_source_folder'](os.path.join(self.python_stdlib, x))
+        self.compile_py_modules()
+        freeze_python(self.python_stdlib, pdir, self.obj_dir, ext_map, develop_mode_env_var='KITTY_DEVELOP_FROM', remove_pyc_files=True)
+        iv['build_frozen_launcher']([path_to_freeze_dir(), self.obj_dir])
+        os.rename(join(dirname(self.contents_dir), 'bin', 'kitty'), join(self.contents_dir, 'MacOS', 'kitty'))
+        shutil.rmtree(join(dirname(self.contents_dir), 'bin'))
+        self.fix_dependencies_in_lib(join(self.contents_dir, 'MacOS', 'kitty'))
+        for f in walk(pdir):
+            if f.endswith('.so') or f.endswith('.dylib'):
+                self.fix_dependencies_in_lib(f)
+
     @flush
     def add_site_packages(self):
         print('\nAdding site-packages')
@@ -389,14 +415,11 @@ class Freeze(object):
 
     @flush
     def compile_py_modules(self):
-        print('\nCompiling Python modules')
         self.remove_bytecode(join(self.resources_dir, 'Python'))
         py_compile(join(self.resources_dir, 'Python'))
-        self.remove_bytecode(join(self.resources_dir, 'kitty'))
-        py_compile(join(self.resources_dir, 'kitty'))
 
     @flush
-    def makedmg(self, d, volname, internet_enable=True, format='ULFO'):
+    def makedmg(self, d, volname, format='ULFO'):
         ''' Copy a directory d into a dmg named volname '''
         print('\nMaking dmg...')
         sys.stdout.flush()
@@ -432,9 +455,6 @@ class Freeze(object):
         print('\nCreating dmg...')
         with timeit() as times:
             subprocess.check_call(cmd + [dmg])
-            if internet_enable:
-                subprocess.check_call(
-                    ['/usr/bin/hdiutil', 'internet-enable', '-yes', dmg])
         print('dmg created in %d minutes and %d seconds' % tuple(times))
         shutil.rmtree(tdir)
         size = os.stat(dmg).st_size / (1024 * 1024.)
@@ -445,14 +465,12 @@ class Freeze(object):
 def main():
     args = globals()['args']
     ext_dir = globals()['ext_dir']
-    if not args.skip_tests:
-        run_tests = iv['run_tests']
-        run_tests(None, os.path.join(ext_dir, 'src'))
     Freeze(
         os.path.join(ext_dir, kitty_constants['appname'] + '.app'),
         dont_strip=args.dont_strip,
         sign_installers=args.sign_installers,
-        notarize=args.notarize
+        notarize=args.notarize,
+        skip_tests=args.skip_tests
     )
 
 

bypy/site.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+# vim:fileencoding=utf-8
+# License: GPLv3 Copyright: 2021, Kovid Goyal <kovid at kovidgoyal.net>
+
+import builtins
+import sys
+
+import _sitebuiltins
+
+
+def set_quit():
+    eof = 'Ctrl-D (i.e. EOF)'
+    builtins.quit = _sitebuiltins.Quitter('quit', eof)
+    builtins.exit = _sitebuiltins.Quitter('exit', eof)
+
+
+def set_helper():
+    builtins.help = _sitebuiltins._Helper()
+
+
+def main():
+    sys.argv[0] = sys.calibre_basename
+    set_helper()
+    set_quit()
+    mod = __import__(sys.calibre_module, fromlist=[1])
+    func = getattr(mod, sys.calibre_function)
+    return func()
+
+
+if __name__ == '__main__':
+    main()

bypy/sources.json

@@ -28,13 +28,34 @@
         }
     },
 
+    {
+        "name": "cmake",
+        "os": "macos",
+        "unix": {
+            "filename": "cmake-3.19.4.tar.gz",
+            "hash": "sha256:7d0232b9f1c57e8de81f38071ef8203e6820fe7eec8ae46a1df125d88dbcc2e1",
+            "urls": ["https://cmake.org/files/v3.19/{filename}"]
+        }
+    },
+
 
     {
         "name": "expat",
         "unix": {
-            "filename": "expat-2.2.6.tar.bz2",
-            "hash": "sha256:17b43c2716d521369f82fc2dc70f359860e90fa440bea65b3b85f0b246ea81f2",
-            "urls": ["https://github.com/libexpat/libexpat/releases/download/R_2_2_6/{filename}"]
+            "filename": "expat-2.2.10.tar.bz2",
+            "hash": "sha256:b2c160f1b60e92da69de8e12333096aeb0c3bf692d41c60794de278af72135a5",
+            "urls": ["https://github.com/libexpat/libexpat/releases/download/R_2_2_10/{filename}"]
+        }
+    },
+
+
+    {
+        "name": "libxml2",
+        "os": "linux",
+        "unix": {
+            "filename": "libxml2-2.9.10.tar.gz",
+            "hash": "sha256:aafee193ffb8fe0c82d4afef6ef91972cbaf5feea100edc2f262750611b4be1f",
+            "urls": ["ftp://xmlsoft.org/libxml2/{filename}"]
         }
     },
 
@@ -43,8 +64,8 @@
         "name": "xkbcommon",
         "os": "linux",
         "unix": {
-            "filename": "libxkbcommon-0.10.0.tar.xz",
-            "hash": "sha256:57c3630cdc38fb4734cd57fa349e92244f5ae3862813e533cedbd86721a0b6f2",
+            "filename": "libxkbcommon-1.0.3.tar.xz",
+            "hash": "sha256:a2202f851e072b84e64a395212cbd976ee18a8ee602008b0bad02a13247dbc52",
             "urls": ["http://xkbcommon.org/download/{filename}"]
         }
     },
@@ -52,27 +73,28 @@
     {
         "name": "sqlite",
         "unix": {
-            "filename": "sqlite-autoconf-3310100.tar.gz",
-            "hash": "sha1:0c30f5b22152a8166aa3bebb0f4bc1f3e9cc508b",
-            "urls": ["https://www.sqlite.org/2020/{filename}"]
+            "filename": "sqlite-autoconf-3340100.tar.gz",
+            "hash": "sha256:2a3bca581117b3b88e5361d0ef3803ba6d8da604b1c1a47d902ef785c1b53e89",
+            "urls": ["https://www.sqlite.org/2021/{filename}"]
         }
     },
 
 
     {
         "name": "libffi",
+        "os": "linux",
         "unix": {
-            "filename": "libffi-3.2.1.tar.gz",
-            "hash": "sha1:280c265b789e041c02e5c97815793dfc283fb1e6",
-            "urls": ["ftp://sourceware.org/pub/libffi/{filename}"]
+            "filename": "libffi-3.3.0.tar.gz",
+            "hash": "sha256:72fba7922703ddfa7a028d513ac15a85c8d54c8d67f55fa5a4802885dc652056",
+            "urls": ["https://github.com/libffi/libffi/releases/download/v3.3/libffi-3.3.tar.gz"]
         }
     },
 
     {
         "name": "openssl",
         "unix": {
-            "filename": "openssl-1.1.1g.tar.gz",
-            "hash": "sha256:ddb04774f1e32f0c49751e21b67216ac87852ceb056b75209af2443400636d46",
+            "filename": "openssl-1.1.1i.tar.gz",
+            "hash": "sha256:e8be6a35fe41d10603c3cc635e93289ed00bf34b79671a3a4de64fcee00d5242",
             "urls": ["https://www.openssl.org/source/{filename}"]
         }
     },
@@ -91,15 +113,14 @@
         "name": "readline",
         "os": "linux",
         "unix": {
-            "filename": "readline-8.0.tar.gz",
-            "hash": "sha256:e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461",
+            "filename": "readline-8.1.tar.gz",
+            "hash": "sha256:f8ceb4ee131e3232226a17f51b164afc46cd0b9e6cef344be87c65962cb82b02",
             "urls": ["http://ftp.gnu.org/gnu/readline/{filename}"]
         }
     },
 
     {
         "name": "xz",
-        "os": "macos,linux",
         "unix": {
             "filename": "xz-5.2.5.tar.gz",
             "hash": "sha256:f6f4910fd033078738bd82bfba4f49219d03b17eb0794eb91efbae419f4aba10",
@@ -107,20 +128,30 @@
         }
     },
 
+    {
+        "name": "xcrypt",
+        "os": "linux",
+        "unix": {
+            "filename": "xcrypt-4.4.17.tar.gz",
+            "hash": "sha256:7665168d0409574a03f7b484682e68334764c29c21ca5df438955a381384ca07",
+            "urls": ["https://github.com/besser82/libxcrypt/archive/v4.4.17.tar.gz"]
+        }
+    },
+
     {
         "name": "python",
         "unix": {
-            "filename": "Python-3.8.3.tar.xz",
-            "hash": "sha256:dfab5ec723c218082fe3d5d7ae17ecbdebffa9a1aea4d64aa3a2ecdd2e795864",
-            "urls": ["https://www.python.org/ftp/python/3.8.3/{filename}"]
+            "filename": "Python-3.9.4.tar.xz",
+            "hash": "sha256:4b0e6644a76f8df864ae24ac500a51bbf68bd098f6a173e27d3b61cdca9aa134",
+            "urls": ["https://www.python.org/ftp/python/3.9.4/{filename}"]
         }
     },
 
     {
         "name": "setuptools",
         "unix": {
-            "filename": "setuptools-41.0.1.zip",
-            "hash": "sha256:a222d126f5471598053c9a77f4b5d4f26eaa1f150ad6e01dcf1a42e185d05613",
+            "filename": "setuptools-53.0.0.tar.gz",
+            "hash": "sha256:1b18ef17d74ba97ac9c0e4b4265f123f07a8ae85d9cd093949fa056d3eeeead5",
             "urls": ["pypi"]
         }
     },
@@ -128,22 +159,12 @@
     {
         "name": "pygments",
         "unix": {
-            "filename": "Pygments-2.6.1.tar.gz",
-            "hash": "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
+            "filename": "Pygments-2.7.4.tar.gz",
+            "hash": "sha256:df49d09b498e83c1a73128295860250b0b7edd4c723a32e9bc0d295c7c2ec337",
             "urls": ["pypi"]
         }
     },
 
-    {
-        "name": "cmake",
-        "os": "macos",
-        "unix": {
-            "filename": "cmake-3.6.0.tar.gz",
-            "hash": "sha1:6b0d2d7d93c2e74f8890c4b8b824deb3b36d24b6",
-            "urls": ["https://cmake.org/files/v3.6/{filename}"]
-        }
-    },
-
     {
         "name": "libpng",
         "unix": {
@@ -156,9 +177,9 @@
     {
         "name": "lcms2",
         "unix": {
-            "filename": "lcms2-2.11.tar.gz",
-            "hash": "sha256:478c9c3938d7a91b1171de4616f8b04308a8676d73eadc19505b7ace41327f28",
-            "urls": ["https://github.com/mm2/Little-CMS/archive/2.11/{filename}"]
+            "filename": "lcms2-2.12.tar.gz",
+            "hash": "sha256:e501f1482fc424550ef3abbf86bf1c66090e1661249e89552d39ed5bf935df66",
+            "urls": ["https://github.com/mm2/Little-CMS/archive/2.12/{filename}"]
         }
     },
 
@@ -166,8 +187,8 @@
         "name": "graphite",
         "os": "linux",
         "unix": {
-            "filename": "graphite2-1.3.5.tgz",
-            "hash": "md5:5b8d22a8bbf031838e31432868c0109c",
+            "filename": "graphite2-1.3.14.tgz",
+            "hash": "sha256:f99d1c13aa5fa296898a181dff9b82fb25f6cc0933dbaa7a475d8109bd54209d",
             "urls": ["http://downloads.sourceforge.net/silgraphite/{filename}"]
         }
     },
@@ -176,8 +197,8 @@
         "name": "pcre",
         "os": "linux",
         "unix": {
-            "filename": "pcre-8.42.tar.bz2",
-            "hash": "md5:085b6aa253e0f91cae70b3cdbe8c1ac2",
+            "filename": "pcre-8.44.tar.bz2",
+            "hash": "sha256:19108658b23b3ec5058edc9f66ac545ea19f9537234be1ec62b714c84399366d",
             "urls": ["https://ftp.pcre.org/pub/pcre/{filename}"]
         }
     },
@@ -196,9 +217,19 @@
         "name": "glib",
         "os": "linux",
         "unix": {
-            "filename": "glib-2.65.1.tar.xz",
-            "hash": "sha256:bc63bf6c32713e0ee1dddc28e03f23b4a20c78bcb9a2c5b0f4eea41e46fb9cee",
-            "urls": ["https://ftp.gnome.org/pub/GNOME/sources/glib/2.65/{filename}"]
+            "filename": "glib-2.66.6.tar.xz",
+            "hash": "sha256:80fff9c63d2725834328071c42003c311f77f91caf2285195c587c62f5638329",
+            "urls": ["https://ftp.gnome.org/pub/GNOME/sources/glib/2.66/{filename}"]
+        }
+    },
+
+    {
+        "name": "brotli",
+        "os": "linux",
+        "unix": {
+            "filename": "brotli-1.0.9.tar.gz",
+            "hash": "sha256:f9e8d81d0405ba66d181529af42a3354f838c939095ff99930da6aa9cdf6fe46",
+            "urls": ["https://github.com/google/brotli/archive/v1.0.9/{filename}"]
         }
     },
 
@@ -206,8 +237,8 @@
         "name": "freetype",
         "os": "linux",
         "unix": {
-            "filename": "freetype-2.9.1.tar.bz2",
-            "hash": "md5:60ef7d8160cd4bf8cb118ee9d65367ca",
+            "filename": "freetype-2.10.4.tar.xz",
+            "hash": "sha256:86a854d8905b19698bbc8f23b860bc104246ce4854dcea8e3b0fb21284f75784",
             "urls": ["https://download.savannah.gnu.org/releases/freetype/{filename}"]
         }
     },
@@ -216,8 +247,8 @@
         "name": "fontconfig",
         "os": "linux",
         "unix": {
-            "filename": "fontconfig-2.12.0.tar.bz2",
-            "hash": "sha256:b433e4efff1f68fdd8aac221ed1df3ff1e580ffedbada020a703fe64017d8224",
+            "filename": "fontconfig-2.13.1.tar.bz2",
+            "hash": "sha256:f655dd2a986d7aa97e052261b36aa67b0a64989496361eca8d604e6414006741",
             "urls": ["http://www.fontconfig.org/release/{filename}"]
         }
     },
@@ -225,19 +256,9 @@
     {
         "name": "harfbuzz",
         "unix": {
-            "filename": "harfbuzz-1.7.2.tar.bz2",
-            "hash": "sha256:a790585e35c1a87f0dcc23580c84b7cc2324e6f67a2946178d278c2a36c790cb",
-            "urls": ["https://www.freedesktop.org/software/harfbuzz/release/{filename}"]
-        }
-    },
-
-    {
-        "name": "libxml2",
-        "os": "linux",
-        "unix": {
-            "filename": "libxml2-2.9.4.tar.gz",
-            "hash": "sha1:958ae70baf186263a4bd801a81dd5d682aedd1db",
-            "urls": ["ftp://xmlsoft.org/libxml2/{filename}"]
+            "filename": "harfbuzz-2.7.4.tar.xz",
+            "hash": "sha256:6ad11d653347bd25d8317589df4e431a2de372c0cf9be3543368e07ec23bb8e7",
+            "urls": ["https://github.com/harfbuzz/harfbuzz/releases/download/2.7.4/{filename}"]
         }
     },
 
@@ -245,8 +266,8 @@
         "name": "wayland",
         "os": "linux",
         "unix": {
-            "filename": "wayland-1.18.0.tar.xz",
-            "hash": "sha256:4675a79f091020817a98fd0484e7208c8762242266967f55a67776936c2e294d",
+            "filename": "wayland-1.19.0.tar.xz",
+            "hash": "sha256:baccd902300d354581cd5ad3cc49daa4921d55fb416a5883e218750fef166d15",
             "urls": ["https://wayland.freedesktop.org/releases/{filename}"]
         }
     },

count-lines-of-code

@@ -4,8 +4,6 @@ import subprocess
 
 files_to_exclude = '''\
 kitty/wcwidth-std.h
-kitty/glfw.c
-kitty/keys.h
 kitty/charsets.c
 kitty/unicode-data.c
 kitty/key_encoding.py
@@ -18,6 +16,11 @@ kitty/glfw-wrapper.c
 kitty/emoji.h
 kittens/unicode_input/names.h
 kitty/parse-graphics-command.h
+kitty/options/types.py
+kitty/options/parse.py
+kitty/options/to-c-generated.h
+kittens/diff/options/types.py
+kittens/diff/options/parse.py
 '''
 
 p = subprocess.Popen([

docs/Makefile

@@ -2,7 +2,7 @@
 #
 
 # You can set these variables from the command line.
-SPHINXOPTS    = -j auto -T $(FAIL_WARN)
+SPHINXOPTS    = -n -q -j auto -T $(FAIL_WARN) $(OPTS)
 SPHINXBUILD   = sphinx-build
 SPHINXPROJ    = kitty
 SOURCEDIR     = .
@@ -18,3 +18,7 @@ help:
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
 	$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+
+develop-docs:
+	sphinx-autobuild --ignore "$(abspath $(SOURCEDIR))/generated/*" --watch ../kitty --watch ../kittens -b dirhtml "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)

docs/_static/custom.css

@@ -5,118 +5,15 @@
  * Distributed under terms of the MIT license.
  */
 
-.float-left-img {
-    float: left;
-    margin-right: 1em;
-    margin-bottom: 1em;
-}
-
-.float-right-img { float: right; margin-left: 1em; margin-bottom: 1em }
-
-.half-with-img { max-width: 50% }
-
-.fit-img { max-width: 95% }
-
-div.body p, div.body dd, div.body li, div.body blockquote {
-    text-align: justify;
-}
-
-pre {
-    white-space: pre-wrap;
-}
-
-pre.pre {
-    white-space: pre;
-}
-
-a[href], input[type="submit"] { cursor: pointer; }
-
-img[style] {
-    /* Used for :scale: images to have them render properly but still popup when clicked */
-    width: auto !important;
-    height: auto !important;
-}
-
-a {
-    text-decoration: none !important;
-    border-bottom: none !important;
-}
-
-body div.document {
-    margin-top: 1ex;
+.sidebar-logo {
+    max-height: 128px;
 }
 
 .major-features li {
-    margin-top: 0.75ex;
     margin-bottom: 0.75ex;
-}
-
-.support-form input[type=submit] {
-    border-radius: 6px;
-    box-shadow: rgb(255, 246, 175) 0px 1px 0px 0px;
-    background: linear-gradient(rgb(255, 236, 100) 5%, rgb(255, 171, 35) 100%) rgb(255, 236, 100);
-    border: 1px solid rgb(255, 170, 34);
-    display: inline-block;
-    color: rgb(51, 51, 51);
-    font-family: Arial;
-    font-size: 15px;
-    font-weight: bold;
-    padding: 6px 24px;
-    text-decoration: none;
-    text-shadow: rgb(255, 238, 102) 0px 1px 0px;
-}
-
-.support-form input[type=submit]:hover {
-    background: linear-gradient(rgb(255, 171, 35) 5%, rgb(255, 236, 100) 100%) rgb(255, 171, 35);
-}
-
-.support-form input[type=submit]:focus {
-    outline: 0;
-}
-
-
-div.sphinxsidebar {
-    font-size: inherit;
-    line-height: inherit;
-    max-height: 100%;
-    overflow-y: auto;
-}
-
-#sidebartoc li {
     margin-top: 0.75ex;
-    margin-bottom: 0.75ex;
 }
 
-#sidebartoc ul {
-    list-style: none !important;
-}
-
-#sidebartoc a[href]:hover {
-    color: red;
-}
-
-
-.green {
-    color: green;
-}
-
-.cyan {
-    color: blue;
-}
-
-.env {
+.sidebar-tree a.current {
     font-style: italic;
 }
-
-.italic {
-    font-style: italic;
-}
-
-.bold {
-    font-weight: bold;
-}
-
-.title {
-    font-size: larger;
-    font-weight: bold
-}

docs/_static/custom.js

@@ -0,0 +1,57 @@
+/* vim:fileencoding=utf-8
+ *
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPLv3 license
+ */
+
+(function() {
+"use strict";
+
+function get_sidebar_tree() {
+    return document.querySelector('.sidebar-tree');
+}
+
+function scroll_sidebar_node_into_view(a) {
+    var ss = get_sidebar_tree().closest('.sidebar-scroll');
+    if (!ss || !a) return;
+    ss.style.position = 'relative';
+    var pos = 0;
+    while (true) {
+        pos += a.offsetTop;
+        a = a.offsetParent;
+        if (!a || a == ss) break;
+    }
+    ss.scrollTop = pos;
+}
+
+function mark_current_link(sidebar_tree, a, onload) {
+    var li = a.closest('li.has-children');
+    while (li) {
+        li.querySelector('input[type=checkbox]').setAttribute('checked', 'checked');
+        li = li.parentNode.closest('li.has-children');
+    }
+    sidebar_tree.querySelectorAll('.current').forEach(function (elem) {
+        elem.classList.remove('current');
+    });
+    if (onload) scroll_sidebar_node_into_view(a);
+    a.classList.add('current');
+}
+
+function show_hash_in_sidebar(onload) {
+    var sidebar_tree = document.querySelector('.sidebar-tree');
+    if (document.location.hash.length > 1) {
+        var a = sidebar_tree.querySelector('a[href="' + document.location.hash + '"]');
+        if (a) mark_current_link(sidebar_tree, a, onload);
+    } else {
+        if (onload) scroll_sidebar_node_into_view(sidebar_tree.querySelector('.current-page a'));
+    }
+}
+
+document.addEventListener("DOMContentLoaded", function() {
+    show_hash_in_sidebar(true);
+    window.addEventListener('hashchange', show_hash_in_sidebar.bind(null, false));
+});
+
+}());
+

docs/_templates/base.html

@@ -0,0 +1,22 @@
+{% extends "!base.html" %}
+{% block extrahead %}
+
+  {{ super() }}
+
+  {%- if analytics_id %}
+      <script type="text/javascript">
+      var _gaq = _gaq || [];
+      _gaq.push(['_setAccount', '{{ analytics_id }}']);
+      _gaq.push(['_setDomainName', 'none']);
+      _gaq.push(['_setAllowLinker', true]);
+      _gaq.push(['_trackPageview']);
+
+      (function() {
+        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
+        ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
+        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
+      })();
+    </script>
+  {% endif -%}
+
+{% endblock %}

docs/_templates/layout.html

@@ -1,6 +0,0 @@
-{% extends "!layout.html" %}
-
-{%- block extrahead %}
-<!-- kitty analytics placeholder -->
-  {{ super() }}
-{% endblock %}

docs/_templates/localtoc.html

@@ -1,6 +0,0 @@
-{%- if display_toc %}
-<div>&nbsp;</div>
-<div id="sidebartoc">
-  {{ toc }}
-</div>
-{%- endif %}

docs/_templates/searchbox.html

@@ -1,22 +0,0 @@
-{#
-    basic/searchbox.html
-    ~~~~~~~~~~~~~~~~~~~~
-
-    Sphinx sidebar template: quick search box.
-
-    :copyright: Copyright 2007-2018 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- if pagename != "search" and builder != "singlehtml" %}
-<div id="searchbox" style="display: none" role="search">
-    <div class="searchformwrapper">
-    <form class="search" action="{{ pathto('search') }}" method="get">
-      <input type="text" name="q" placeholder="{{ _('Search') }}" />
-      <input type="submit" value="{{ _('Go') }}" style="cursor: pointer" />
-      <input type="hidden" name="check_keywords" value="yes" />
-      <input type="hidden" name="area" value="default" />
-    </form>
-    </div>
-</div>
-<script type="text/javascript">$('#searchbox').show(0);</script>
-{%- endif %}

docs/_templates/support.html

@@ -1,7 +0,0 @@
-{% if pagename != "support" %}
-<div id="support" style="text-align: center">
-    <form class="support-form" action="{{ pathto('support') }}" title="{{ _('Donate to support kitty development') }}">
-        <input type="submit" value="{{ _('Support kitty') }}">
-    </form>
-</div>
-{% endif %}

docs/actions.rst

@@ -0,0 +1,9 @@
+Mappable actions
+-----------------------
+
+.. highlight:: conf
+
+The actions described below can be mapped to any key press or mouse action
+using the ``map`` and ``mouse_map`` directives in :file:`kitty.conf`.
+
+.. include:: /generated/actions.rst

docs/basic.rst

@@ -0,0 +1,135 @@
+Tabs and Windows
+-------------------
+
+|kitty| is capable of running multiple programs organized into tabs and
+windows. The top level of organization is the *Tab*. Each tab consists
+of one or more *windows*. The windows can be arranged in multiple
+different layouts, like windows are organized in a tiling window
+manager. The keyboard controls (which are all customizable) for tabs and
+windows are:
+
+Scrolling
+~~~~~~~~~~~~~~
+
+========================    =======================
+Action                      Shortcut
+========================    =======================
+Scroll line up              :sc:`scroll_line_up` (also :kbd:`⌥+⌘+⇞` and :kbd:`⌘+↑` on macOS)
+Scroll line down            :sc:`scroll_line_down` (also :kbd:`⌥+⌘+⇟` and :kbd:`⌘+↓` on macOS)
+Scroll page up              :sc:`scroll_page_up` (also :kbd:`⌘+⇞` on macOS)
+Scroll page down            :sc:`scroll_page_down` (also :kbd:`⌘+⇟` on macOS)
+Scroll to top               :sc:`scroll_home` (also :kbd:`⌘+↖` on macOS)
+Scroll to bottom            :sc:`scroll_end` (also :kbd:`⌘+↘` on macOS)
+========================    =======================
+
+Tabs
+~~~~~~~~~~~
+
+========================    =======================
+Action                      Shortcut
+========================    =======================
+New tab                     :sc:`new_tab` (also :kbd:`⌘+t` on macOS)
+Close tab                   :sc:`close_tab` (also :kbd:`⌘+w` on macOS)
+Next tab                    :sc:`next_tab` (also :kbd:`^+⇥` and :kbd:`⇧+⌘+]` on macOS)
+Previous tab                :sc:`previous_tab` (also :kbd:`⇧+^+⇥` and :kbd:`⇧+⌘+[` on macOS)
+Next layout                 :sc:`next_layout`
+Move tab forward            :sc:`move_tab_forward`
+Move tab backward           :sc:`move_tab_backward`
+Set tab title               :sc:`set_tab_title` (also :kbd:`⇧+⌘+i` on macOS)
+========================    =======================
+
+
+Windows
+~~~~~~~~~~~~~~~~~~
+
+========================    =======================
+Action                      Shortcut
+========================    =======================
+New window                  :sc:`new_window` (also :kbd:`⌘+↩` on macOS)
+New OS window               :sc:`new_os_window` (also :kbd:`⌘+n` on macOS)
+Close window                :sc:`close_window` (also :kbd:`⇧+⌘+d` on macOS)
+Next window                 :sc:`next_window`
+Previous window             :sc:`previous_window`
+Move window forward         :sc:`move_window_forward`
+Move window backward        :sc:`move_window_backward`
+Move window to top          :sc:`move_window_to_top`
+Focus specific window       :sc:`first_window`, :sc:`second_window` ... :sc:`tenth_window`
+                            (also :kbd:`⌘+1`, :kbd:`⌘+2` ... :kbd:`⌘+9` on macOS)
+                            (clockwise from the top-left)
+========================    =======================
+
+Additionally, you can define shortcuts in :file:`kitty.conf` to focus neighboring
+windows and move windows around (similar to window movement in vim)::
+
+   map ctrl+left neighboring_window left
+   map shift+left move_window right
+   map ctrl+down neighboring_window down
+   map shift+down move_window up
+   ...
+
+You can also define a shortcut to switch to the previously active window::
+
+   map ctrl+p nth_window -1
+
+``nth_window`` will focus the nth window for positive numbers and the
+previously active windows for negative numbers.
+
+.. _detach_window:
+
+You can define shortcuts to detach the current window and
+move it to another tab or another OS window::
+
+    # moves the window into a new OS window
+    map ctrl+f2 detach_window
+    # moves the window into a new Tab
+    map ctrl+f3 detach_window new-tab
+    # moves the window into the previously active tab
+    map ctrl+f3 detach_window tab-prev
+    # moves the window into the tab at the left of the active tab
+    map ctrl+f3 detach_window tab-left
+    # asks which tab to move the window into
+    map ctrl+f4 detach_window ask
+
+Similarly, you can detach the current tab, with::
+
+    # moves the tab into a new OS window
+    map ctrl+f2 detach_tab
+    # asks which OS Window to move the tab into
+    map ctrl+f4 detach_tab ask
+
+Finally, you can define a shortcut to close all windows in a tab other than
+the currently active window::
+
+    map f9 close_other_windows_in_tab
+
+
+Other keyboard shortcuts
+----------------------------------
+
+The full list of actions that can be mapped to key presses is available
+:doc:`here </actions>`.
+
+==================================  =======================
+Action                              Shortcut
+==================================  =======================
+Copy to clipboard                   :sc:`copy_to_clipboard` (also :kbd:`⌘+c` on macOS)
+Paste from clipboard                :sc:`paste_from_clipboard` (also :kbd:`⌘+v` on macOS)
+Paste from selection                :sc:`paste_from_selection`
+Increase font size                  :sc:`increase_font_size` (also :kbd:`⌘++` on macOS)
+Decrease font size                  :sc:`decrease_font_size` (also :kbd:`⌘+-` on macOS)
+Restore font size                   :sc:`reset_font_size` (also :kbd:`⌘+0` on macOS)
+Toggle fullscreen                   :sc:`toggle_fullscreen` (also :kbd:`^+⌘+f` on macOS)
+Toggle maximized                    :sc:`toggle_maximized`
+Input unicode character             :sc:`input_unicode_character` (also :kbd:`^+⌘+space` on macOS)
+Click URL using the keyboard        :sc:`open_url`
+Reset the terminal                  :sc:`reset_terminal`
+Reload :file:`kitty.conf`           :sc:`reload_config_file` (also :kbd:`^+⌘+f5` on macOS)
+Debug :file:`kitty.conf`            :sc:`debug_config` (also :kbd:`⌘+option+f6` on macOS)
+Pass current selection to program   :sc:`pass_selection_to_program`
+Edit |kitty| config file            :sc:`edit_config_file`
+Open a |kitty| shell                :sc:`kitty_shell`
+Increase background opacity         :sc:`increase_background_opacity`
+Decrease background opacity         :sc:`decrease_background_opacity`
+Full background opacity             :sc:`full_background_opacity`
+Reset background opacity            :sc:`reset_background_opacity`
+==================================  =======================

docs/binary.rst

@@ -1,6 +1,9 @@
-kitty - Binary install
+Install kitty
 ========================
 
+Binary install
+----------------
+
 .. |ins| replace:: curl -L :literal:`https://sw.kovidgoyal.net/kitty/installer.sh` | sh /dev/stdin
 
 .. highlight:: sh
@@ -44,10 +47,17 @@ particular desktop, but it should work for most major desktop environments.
     # your PATH)
     ln -s ~/.local/kitty.app/bin/kitty ~/.local/bin/
     # Place the kitty.desktop file somewhere it can be found by the OS
-    cp ~/.local/kitty.app/share/applications/kitty.desktop ~/.local/share/applications
+    cp ~/.local/kitty.app/share/applications/kitty.desktop ~/.local/share/applications/
     # Update the path to the kitty icon in the kitty.desktop file
     sed -i "s|Icon=kitty|Icon=/home/$USER/.local/kitty.app/share/icons/hicolor/256x256/apps/kitty.png|g" ~/.local/share/applications/kitty.desktop
 
+.. note::
+    If you use the venerable `stow <https://www.gnu.org/software/stow/>`_
+    command to manage your manual installations, the following takes care of the
+    above for you (use with :file:`dest=~/.local/stow`)::
+
+        cd ~/.local/stow
+        stow -v kitty.app
 
 
 Customizing the installation

docs/build.rst

@@ -1,37 +1,51 @@
-Building kitty from source
-==============================
+Build from source
+==================
 
 .. image:: https://github.com/kovidgoyal/kitty/workflows/CI/badge.svg
   :alt: Build status
   :target: https://github.com/kovidgoyal/kitty/actions?query=workflow%3ACI
 
 
-|kitty| is designed to run from source, for easy hackability. Make sure
+|kitty| is designed to run from source, for easy hack-ability. Make sure
 the following dependencies are installed first.
 
+
+.. note::
+   If you are making small changes only to the python parts of kitty, there is no need to
+   build kitty at all, instead, assuming you have installed the official kitty
+   binaries, you can simply set the KITTY_DEVELOP_FROM enviroment variable to
+   point to the directory into which you have checked out the kitty source
+   code. kitty will then load its python code from there. You should use a
+   version of the source that matches the binary version as closely as
+   possible, since the two are tightly coupled.
+
+
 Dependencies
 ----------------
 
 Run-time dependencies:
 
-    * python >= 3.5
-    * harfbuzz >= 1.5.0
-    * zlib
-    * libpng
-    * liblcms2
-    * freetype (not needed on macOS)
-    * fontconfig (not needed on macOS)
-    * libcanberra (not needed on macOS)
-    * ImageMagick (optional, needed to use the ``kitty icat`` tool to display images in the terminal)
-    * pygments (optional, need for syntax highlighting in ``kitty +kitten diff``)
+* ``python`` >= 3.6
+* ``harfbuzz`` >= 2.2.0
+* ``zlib``
+* ``libpng``
+* ``liblcms2``
+* ``freetype`` (not needed on macOS)
+* ``fontconfig`` (not needed on macOS)
+* ``libcanberra`` (not needed on macOS)
+* ``ImageMagick`` (optional, needed to use the ``kitty +kitten icat`` tool to display images in the terminal)
+* ``pygments`` (optional, needed for syntax highlighting in ``kitty +kitten diff``)
+
 
 Build-time dependencies:
 
-    * gcc or clang
-    * pkg-config
-    * For building on Linux in addition to the above dependencies you might also need to install the ``-dev`` packages for:
-      ``libdbus-1-dev``, ``libxcursor-dev``, ``libxrandr-dev``, ``libxi-dev``, ``libxinerama-dev``, ``libgl1-mesa-dev``, ``libxkbcommon-x11-dev``, ``libfontconfig-dev``, and ``libpython-dev``,
-      if they are not already installed by your distro.
+* ``gcc`` or ``clang``
+* ``pkg-config``
+* For building on Linux in addition to the above dependencies you might also need to install the ``-dev`` packages for:
+  ``libdbus-1-dev``, ``libxcursor-dev``, ``libxrandr-dev``, ``libxi-dev``, ``libxinerama-dev``,
+  ``libgl1-mesa-dev``, ``libxkbcommon-x11-dev``, ``libfontconfig-dev``, ``libx11-xcb-dev``,
+  ``liblcms2-dev``, and ``libpython3-dev``, if they are not already installed by your distro.
+
 
 Install and run from source
 ------------------------------
@@ -67,9 +81,8 @@ you might have to rebuild the app.
 .. note::
    The released :file:`kitty.dmg` includes all dependencies, unlike the
    :file:`kitty.app` built above and is built automatically by using the
-   :file:`kitty` branch of `build-calibre
-   <https://github.com/kovidgoyal/build-calibre>`_ however, that is designed to
-   run on Linux and is not for the faint of heart.
+   `bypy framework <https://github.com/kovidgoyal/bypy>`_ however, that is
+   designed to run on Linux and is not for the faint of heart.
 
 
 .. note::
@@ -78,6 +91,19 @@ you might have to rebuild the app.
    a self signed certificate, see for example, `here
    <https://stackoverflow.com/questions/27474751/how-can-i-codesign-an-app-without-being-in-the-mac-developer-program/27474942>`_.
 
+Build and run from source with Nix
+-------------------------------------------
+
+On NixOS or any other Linux or macOS system with the Nix package manager
+installed, execute `nix-shell
+<https://nixos.org/guides/nix-pills/developing-with-nix-shell.html>`_ to create
+the correct environment to build kitty or use ``nix-shell --pure`` instead to
+eliminate most of the influence of the outside system, e.g. globally installed
+packages. ``nix-shell`` will automatically fetch all required dependencies and
+make them available in the newly spawned shell.
+
+Then proceed with ``make`` or ``make app`` according to the platform specific instructions above.
+
 
 Note for Linux/macOS packagers
 ----------------------------------
@@ -105,18 +131,19 @@ This allows users to install the terminfo file on servers into which they ssh,
 without needing to install all of |kitty|.
 
 .. note::
-        You need a couple of extra dependencies to build linux-package.
-        :file:`tic` to compile terminfo files, usually found in the
-        development package of :file:`ncurses`. Also, if you are building from
-        a git checkout instead of the released source code tarball, you will
-        need :file:`sphinx-build` from the `Sphinx documentation generator
-        <https://www.sphinx-doc.org/>`_.
+   You need a couple of extra dependencies to build linux-package.
+   :file:`tic` to compile terminfo files, usually found in the
+   development package of :file:`ncurses`. Also, if you are building from
+   a git checkout instead of the released source code tarball, you will
+   need to install the dependencies from ``docs/requirements.txt`` to
+   build the kitty documentation. They can be installed most easily with
+   ``python -m pip -r docs/requirements.txt``.
 
 This applies to creating packages for |kitty| for macOS package managers such as
 brew or MacPorts as well.
 
 
 .. note::
-        |kitty| has its own update check mechanism, if you would like to turn
-        it off for your package, use
-        ``python3 setup.py linux-package --update-check-interval=0``
+   |kitty| has its own update check mechanism, if you would like to turn
+   it off for your package, use
+   ``python3 setup.py linux-package --update-check-interval=0``

docs/changelog.rst

@@ -1,9 +1,554 @@
 Changelog
 ==============
 
-|kitty| is a feature full, cross-platform, *fast*, GPU based terminal emulator.
+|kitty| is a feature-rich, cross-platform, *fast*, GPU based terminal.
 To update |kitty|, :doc:`follow the instructions <binary>`.
 
+0.22.1 [2021-07-31]
+----------------------
+
+- Fix a regression in the previous release that broke ``kitty --help`` (:iss:`3869`)
+
+- Graphics protocol: Fix composing onto currently displayed frame not updating the frame on the GPU (:iss:`3874`)
+
+- Fix switching to previously active tab after detaching a tab not working (:pull:`3871`)
+
+- macOS: Fix an error on Apple silicon when enumerating monitors (:pull:`3875`)
+
+- detach_window: Allow specifying the previously active tab or the tab to the left/right of
+  the active tab (:disc:`3877`)
+
+- broadcast kitten: Fix a regression in ``0.20.0`` that broke sending of some
+  keys, such as backspace
+
+- Linux binary: Remove any RPATH build artifacts from bundled libraries
+
+- Wayland: If the compositor turns off server side decorations after turning
+  them on do not draw client side decorations (:iss:`3888`)
+
+
+0.22.0 [2021-07-26]
+----------------------
+
+- Add a new :ref:`action-toggle_layout` action to easily zoom/unzoom a window
+
+- When right clicking to extend a selection, move the nearest selection
+  boundary rather than the end of the selection. To restore previous behavior
+  use ``mouse_map right press ungrabbed mouse_selection move-end``.
+
+- When opening hyperlinks, allow defining open actions for directories
+  (:pull:`3836`)
+
+- When using the OSC 52 escape code to copy to clipboard allow large
+  copies (up to 8MB) without needing a kitty specific chunking protocol.
+  Note that if you used the chunking protocol in the past, it will no longer
+  work and you should switch to using the unmodified protocol which has the
+  advantage of working with all terminal emulators.
+
+- Fix a bug in the implementation of the synchronized updates escape code that
+  could cause incorrect parsing if either the pending buffer capacity or the
+  pending timeout were exceeded (:iss:`3779`)
+
+- A new remote control command to :program:`resize the OS Window <kitty @
+  resize-os-window>`
+
+- Graphics protocol: Add support for composing rectangles from one animation
+  frame onto another (:iss:`3809`)
+
+- diff kitten: Remove limit on max line length of 4096 characters (:iss:`3806`)
+
+- Fix turning off cursor blink via escape codes not working (:iss:`3808`)
+
+- Allow using neighboring window operations in the stack layout. The previous
+  window is considered the left and top neighbor and the next window is
+  considered the bottom and right neighbor (:iss:`3778`)
+
+- macOS: Render colors in the sRGB colorspace to match other macOS terminal
+  applications (:iss:`2249`)
+
+- Add a new variable ``{num_window_groups}`` for the :opt:`tab_title_template`
+  (:iss:`3837`)
+
+- Wayland: Fix :opt:`initial_window_width/height <remember_window_size>` specified
+  in cells not working on High DPI screens (:iss:`3834`)
+
+- A new theme for the kitty website with support for dark mode.
+
+- Render ┄ ┅ ┆ ┇ ┈ ┉ ┊ ┋ with spaces at the edges. Matches rendering in
+  most other programs and allows long chains of them to look better
+  (:iss:`3844`)
+
+- hints kitten: Detect paths and hashes that appear over multiple lines.
+  Note that this means that all line breaks in the text are no longer \n
+  soft breaks are instead \r. If you use a custom regular expression that
+  is meant to match over line breaks, you will need to match over both.
+  (:iss:`3845`)
+
+- Allow leading or trailing spaces in :opt:`tab_activity_symbol`
+
+- Fix mouse actions not working when caps lock or num lock are engaged
+  (:iss:`3859`)
+
+- macOS: Fix automatic detection of bold/italic faces for fonts that
+  use the family name as the full face name of the regular font not working
+  (:iss:`3861`)
+
+- clipboard kitten: fix copies to clipboard not working without the
+  :option:`kitty +kitten clipboard --wait-for-completion` option
+
+
+0.21.2 [2021-06-28]
+----------------------
+
+- A new :opt:`adjust_baseline` option to adjust the vertical alignment of text
+  inside a line (:pull:`3734`)
+
+- A new :opt:`url_excluded_characters` option to exclude additional characters
+  when detecting URLs under the mouse (:pull:`3738`)
+
+- Fix a regression in 0.21.0 that broke rendering of private use Unicode symbols followed
+  by spaces, when they also exist not followed by spaces (:iss:`3729`)
+
+- ssh kitten: Support systems where the login shell is a non-POSIX shell
+  (:iss:`3405`)
+
+- ssh kitten: Add completion (:iss:`3760`)
+
+- ssh kitten: Fix "Connection closed" message being printed by ssh when running
+  remote commands
+
+- Add support for the XTVERSION escape code
+
+- macOS: Fix a regression in 0.21.0 that broke middle-click to paste from clipboard (:iss:`3730`)
+
+- macOS: Fix shortcuts in the global menu bar responding slowly when cursor blink
+  is disabled/timed out (:iss:`3693`)
+
+- When displaying scrollback ensure that the window does not quit if the amount
+  of scrollback is less than a screen and the user has the ``--quit-if-one-screen``
+  option enabled for less (:iss:`3740`)
+
+- Linux: Fix Emoji/bitmapped fonts not use able in symbol_map
+
+- query terminal kitten: Allow querying font face and size information
+  (:iss:`3756`)
+
+- hyperlinked grep kitten: Fix context options not generating contextual output (:iss:`3759`)
+
+- Allow using superscripts in tab titles (:iss:`3763`)
+
+- Unicode input kitten: Fix searching when a word has more than 1024 matches (:iss:`3773`)
+
+
+0.21.1 [2021-06-14]
+----------------------
+
+- macOS: Fix a regression in the previous release that broke rendering of
+  strikeout (:iss:`3717`)
+
+- macOS: Fix a crash when rendering ligatures larger than 128 characters
+  (:iss:`3724`)
+
+- Fix a regression in the previous release that could cause a crash when
+  changing layouts and mousing (:iss:`3713`)
+
+
+0.21.0 [2021-06-12]
+----------------------
+
+- Allow reloading the :file:`kitty.conf` config file by pressing
+  :sc:`reload_config_file`. (:iss:`1292`)
+
+- Allow clicking URLs to open them without needing to also hold
+  :kbd:`ctrl+shift`
+
+- Allow remapping all mouse button press/release events to perform arbitrary
+  actions. :ref:`See details <conf-kitty-mouse.mousemap>` (:iss:`1033`)
+
+- Support infinite length ligatures (:iss:`3504`)
+
+- **Backward incompatibility**: The options to control which modifiers keys to
+  press for various mouse actions have been removed, if you used these options,
+  you will need to replace them with configuration using the new
+  :ref:`mouse actions framework <conf-kitty-mouse.mousemap>` as they will be
+  ignored. The options were: ``terminal_select_modifiers``,
+  ``rectangle_select_modifiers`` and ``open_url_modifiers``.
+
+- Add a configurable mouse action (:kbd:`ctrl+alt+triplepress` to select from the
+  clicked point to the end of the line. (:iss:`3585`)
+
+- Add the ability to un-scroll the screen to the ``kitty @ scroll-window``
+  remote control command (:iss:`3604`)
+
+- A new option, :opt:`tab_bar_margin_height` to add margins around the
+  top and bottom edges of the tab bar (:iss:`3247`)
+
+- Unicode input kitten: Fix a regression in 0.20.0 that broke keyboard handling
+  when the NumLock or CapsLock modifiers were engaged. (:iss:`3587`)
+
+- Fix a regression in 0.20.0 that sent incorrect bytes for the :kbd:`F1-F4` keys
+  in rmkx mode (:iss:`3586`)
+
+- macOS: When the Apple Color Emoji font lacks an emoji glyph search for it in other
+  installed fonts (:iss:`3591`)
+
+- macOS: Fix rendering getting stuck on some machines after sleep/screensaver
+  (:iss:`2016`)
+
+- macOS: Add a new ``Shell`` menu to the global menubar with some commonly used
+  actions (:pull:`3653`)
+
+- macOS: Fix the baseline for text not matching other CoreText based
+  applications for some fonts (:iss:`2022`)
+
+- Add a few more special commandline arguments for the launch command. Now all
+  ``KITTY_PIPE_DATA`` is also available via command line argument substitution
+  (:iss:`3593`)
+
+- Fix dynamically changing the background color in a window causing rendering
+  artifacts in the tab bar (:iss:`3595`)
+
+- Fix passing STDIN to launched background processes causing them to not inherit
+  environment variables (:pull:`3603`)
+
+- Fix deleting windows that are not the last window via remote control leaving
+  no window focused (:iss:`3619`)
+
+- Add an option :option:`kitty @ get-text --add-cursor` to also get the current
+  cursor position and state as ANSI escape codes (:iss:`3625`)
+
+- Add an option :option:`kitty @ get-text --add-wrap-markers` to add line wrap
+  markers to the output (:pull:`3633`)
+
+- Improve rendering of curly underlines on HiDPI screens (:pull:`3637`)
+
+- ssh kitten: Mimic behavior of ssh command line client more closely by
+  executing any command specified on the command line via the users' shell
+  just as ssh does (:iss:`3638`)
+
+- Fix trailing parentheses in URLs not being detected (:iss:`3688`)
+
+- Tab bar: Use a lower contrast color for tab separators (:pull:`3666`)
+
+- Fix a regression that caused using the ``title`` command in session files
+  to stop working (:iss:`3676`)
+
+- macOS: Fix a rare crash on exit (:iss:`3686`)
+
+- Fix ligatures not working with the `Iosevka
+  <https://github.com/be5invis/Iosevka>`_ font (requires Iosevka >= 7.0.4)
+  (:iss:`297`)
+
+- Remote control: Allow matching tabs by index number in currently active OS
+  Window (:iss:`3708`)
+
+- ssh kitten: Fix non-standard properties in terminfo such as the ones used for
+  true color not being copied (:iss:`312`)
+
+
+0.20.3 [2021-05-06]
+----------------------
+
+- macOS: Distribute universal binaries with both ARM and Intel architectures
+
+- A new ``show_key`` kitten to easily see the bytes generated by the terminal
+  for key presses in the various keyboard modes (:pull:`3556`)
+
+- Linux: Fix keyboard layout change keys defined via compose rules not being
+  ignored
+
+- macOS: Fix Spotlight search of global menu not working in non-English locales
+  (:pull:`3567`)
+
+- Fix tab activity symbol not appearing if no other changes happen in tab bar even when
+  there is activity in a tab (:iss:`3571`)
+
+- Fix focus changes not being sent to windows when focused window changes
+  because of the previously focused window being closed (:iss:`3571`)
+
+
+0.20.2 [2021-04-28]
+----------------------
+
+- A new protocol extension to :ref:`unscroll <unscroll>` text from the
+  scrollback buffer onto the screen. Useful, for example, to restore
+  the screen after showing completions below the shell prompt.
+
+- A new remote control command :ref:`at_env` to change the default
+  environment passed to newly created windows (:iss:`3529`)
+
+- Linux: Fix binary kitty builds not able to load fonts in WOFF2 format
+  (:iss:`3506`)
+
+- macOS: Prevent :kbd:`option` based shortcuts for being used for global menu
+  actions (:iss:`3515`)
+
+- Fix ``kitty @ close-tab`` not working with pipe based remote control
+  (:iss:`3510`)
+
+- Fix removal of inactive tab that is before the currently active tab causing
+  the highlighted tab to be incorrect (:iss:`3516`)
+
+- icat kitten: Respect EXIF orientation when displaying JPEG images
+  (:iss:`3518`)
+
+- GNOME: Fix maximize state not being remembered when focus changes and window
+  decorations are hidden (:iss:`3507`)
+
+- GNOME: Add a new :opt:`wayland_titlebar_color` option to control the color of the
+  kitty window title bar
+
+- Fix reading :option:`kitty --session` from ``STDIN`` not working when the
+  :option:`kitty --detach` option is used (:iss:`3523`)
+
+- Special case rendering of the few remaining Powerline box drawing chars
+  (:iss:`3535`)
+
+- Fix ``kitty @ set-colors`` not working for the :opt:`active_tab_foreground`.
+
+
+0.20.1 [2021-04-19]
+----------------------
+
+- icat: Fix some broken GIF images with no frame delays not being animated
+  (:iss:`3498`)
+
+- hints kitten: Fix sending hyperlinks to their default handler not working
+  (:pull:`3500`)
+
+- Wayland: Fix regression in previous release causing window decorations to
+  be drawn even when compositor supports server side decorations (:iss:`3501`)
+
+
+0.20.0 [2021-04-19]
+----------------------
+
+- Support display of animated images ``kitty +kitten icat animation.gif``. See
+  :ref:`animation_protocol` for details on animation support in the kitty
+  graphics protocol.
+
+- A new keyboard reporting protocol with various advanced features that can be
+  used by full screen terminal programs and even games, see
+  :doc:`keyboard-protocol` (:iss:`3248`)
+
+- **Backward incompatibility**: Session files now use the full :doc:`launch <launch>`
+  command with all its capabilities. However, the syntax of the command is
+  slightly different from before. In particular watchers are now specified
+  directly on launch and environment variables are set using ``--env``.
+
+- Allow setting colors when creating windows using the :doc:`launch <launch>` command.
+
+- A new option :opt:`tab_powerline_style` to control the appearance of the tab
+  bar when using the powerline tab bar style.
+
+- A new option :opt:`scrollback_fill_enlarged_window` to fill extra lines in
+  the window when the window is expanded with lines from the scrollback
+  (:pull:`3371`)
+
+- diff kitten: Implement recursive diff over SSH (:iss:`3268`)
+
+- ssh kitten: Allow using python instead of the shell on the server, useful if
+  the shell used is a non-POSIX compliant one, such as fish (:iss:`3277`)
+
+- Add support for the color settings stack that XTerm copied from us without
+  acknowledgement and decided to use incompatible escape codes for.
+
+- Add entries to the terminfo file for some user capabilities that are shared
+  with XTerm (:pull:`3193`)
+
+- The launch command now does more sophisticated resolving of executables to
+  run. The system-wide PATH is used first, then system specific default paths,
+  and finally the PATH inside the shell.
+
+- Double clicking on empty tab bar area now opens a new tab (:iss:`3201`)
+
+- kitty @ ls: Show only environment variables that are different for each
+  window, by default.
+
+- When passing a directory or a non-executable file as the program to run to
+  kitty opens it with the shell or by parsing the shebang, instead of just failing.
+
+- Linux: Fix rendering of emoji followed by the graphics variation selector not
+  being colored with some fonts (:iss:`3211`)
+
+- Unicode input: Fix using index in select by name mode not working for indices
+  larger than 16. Also using an index does not filter the list of matches. (:pull:`3219`)
+
+- Wayland: Add support for the text input protocol (:iss:`3410`)
+
+- Wayland: Fix mouse handling when using client side decorations
+
+- Wayland: Fix un-maximizing a window not restoring its size to what it was
+  before being maximized
+
+- GNOME/Wayland: Improve window decorations the titlebar now shows the window
+  title. Allow running under Wayland on GNOME by default. (:iss:`3284`)
+
+- Panel kitten: Allow setting WM_CLASS (:iss:`3233`)
+
+- macOS: Add menu items to close the OS window and the current tab (:pull:`3240`, :iss:`3246`)
+
+- macOS: Allow opening script and command files with kitty (:iss:`3366`)
+
+- Also detect ``gemini://`` URLs when hovering with the mouse (:iss:`3370`)
+
+- When using a non-US keyboard layout and pressing :kbd:`ctrl+key` when
+  the key matches an English key, send that to the program running in the
+  terminal automatically (:iss:`2000`)
+
+- When matching shortcuts, also match on shifted keys, so a shortcut defined as
+  :kbd:`ctrl+plus` will match a keyboard where you have to press
+  :kbd:`shift+equal` to get the plus key (:iss:`2000`)
+
+- Fix extra space at bottom of OS window when using the fat layout with the tab bar at the
+  top (:iss:`3258`)
+
+- Fix window icon not working on X11 with 64bits (:iss:`3260`)
+
+- Fix OS window sizes under 100px resulting in scaled display (:iss:`3307`)
+
+- Fix rendering of ligatures in the latest release of Cascadia code, which for
+  some reason puts empty glyphs after the ligature glyph rather than before it
+  (:iss:`3313`)
+
+- Improve handling of infinite length ligatures in newer versions of FiraCode
+  and CascadiaCode. Now such ligatures are detected based on glyph naming
+  convention. This removes the gap in the ligatures at cell boundaries (:iss:`2695`)
+
+- macOS: Disable the native operating system tabs as they are non-functional
+  and can be confusing (:iss:`3325`)
+
+- hints kitten: When using the linenumber action with a background action,
+  preserve the working directory (:iss:`3352`)
+
+- Graphics protocol: Fix suppression of responses not working for chunked
+  transmission (:iss:`3375`)
+
+- Fix inactive tab closing causing active tab to change (:iss:`3398`)
+
+- Fix a crash on systems using musl as libc (:iss:`3395`)
+
+- Improve rendering of rounded corners by using a rectircle equation rather
+  than a cubic bezier (:iss:`3409`)
+
+- Graphics protocol: Add a control to allow clients to specify that the cursor
+  should not move when displaying an image (:iss:`3411`)
+
+- Fix marking of text not working on lines that contain zero cells
+  (:iss:`3403`)
+
+- Fix the selection getting changed if the screen contents scroll while
+  the selection is in progress (:iss:`3431`)
+
+- X11: Fix :opt:`resize_in_steps` being applied even when window is maximized
+  (:iss:`3473`)
+
+
+0.19.3 [2020-12-19]
+-------------------
+
+- Happy holidays to all kitty users!
+
+- A new :doc:`broadcast <kittens/broadcast>` kitten to type in all kitty windows
+  simultaneously (:iss:`1569`)
+
+- Add a new mappable `select_tab` action to choose a tab to switch to even
+  when the tab bar is hidden (:iss:`3115`)
+
+- Allow specifying text formatting in :opt:`tab_title_template` (:iss:`3146`)
+
+- Linux: Read :opt:`font_features` from the FontConfig database as well, so
+  that they can be configured in a single, central location (:pull:`3174`)
+
+- Graphics protocol: Add support for giving individual image placements their
+  own ids and for asking the terminal emulator to assign ids for images. Also
+  allow suppressing responses from the terminal to commands.
+  These are backwards compatible protocol extensions. (:iss:`3133`,
+  :iss:`3163`)
+
+- Distribute extra pixels among all eight-blocks rather than adding them
+  all to the last block (:iss:`3097`)
+
+- Fix drawing of a few sextant characters incorrect (:pull:`3105`)
+
+- macOS: Fix minimize not working for chromeless windows (:iss:`3112`)
+
+- Preserve lines in the scrollback if a scrolling region is defined that
+  is contiguous with the top of the screen (:iss:`3113`)
+
+- Wayland: Fix key repeat being stopped by the release of an unrelated key
+  (:iss:`2191`)
+
+- Add an option, :opt:`detect_urls` to control whether kitty will detect URLs
+  when the mouse moves over them (:pull:`3118`)
+
+- Graphics protocol: Dont return filename in the error message when opening file
+  fails, since filenames can contain control characters (:iss:`3128`)
+
+- macOS: Partial fix for traditional fullscreen not working on Big Sur
+  (:iss:`3100`)
+
+- Fix one ANSI formatting escape code not being removed from the pager history
+  buffer when piping it as plain text (:iss:`3132`)
+
+- Match the save/restore cursor behavior of other terminals, for the sake of
+  interoperability. This means that doing a DECRC without a prior DECSC is now
+  undefined (:iss:`1264`)
+
+- Fix mapping ``remote_control send-text`` not working (:iss:`3147`)
+
+- Add a ``right`` option for :opt:`tab_switch_strategy` (:pull:`3155`)
+
+- Fix a regression in 0.19.0 that caused a rare crash when using the optional
+  :opt:`scrollback_pager_history_size` (:iss:`3049`)
+
+- Full screen kittens: Fix incorrect cursor position after kitten quits
+  (:iss:`3176`)
+
+
+0.19.2 [2020-11-13]
+-------------------
+
+- A new :doc:`kittens/query_terminal` kitten to easily query the running kitty
+  via escape codes to detect its version, and the values of
+  configuration options that enable or disable terminal features.
+
+- Options to control mouse pointer shape, :opt:`default_pointer_shape`, and
+  :opt:`pointer_shape_when_dragging` (:pull:`3041`)
+
+- Font independent rendering for braille characters, which ensures they are properly
+  aligned at all font sizes.
+
+- Fix a regression in 0.19.0 that caused borders not to be drawn when setting
+  :opt:`window_margin_width` and keeping :opt:`draw_minimal_borders` on
+  (:iss:`3017`)
+
+- Fix a regression in 0.19.0 that broke rendering of one-eight bar unicode
+  characters at very small font sizes (:iss:`3025`)
+
+- Wayland: Fix a crash under GNOME when using multiple OS windows
+  (:pull:`3066`)
+
+- Fix selections created by dragging upwards not being auto-cleared when
+  screen contents change (:pull:`3028`)
+
+- macOS: Fix kitty not being added to PATH automatically when using pre-built
+  binaries (:iss:`3063`)
+
+- Allow adding MIME definitions to kitty by placing a ``mime.types`` file in
+  the kitty config directory (:iss:`3056`)
+
+- Dont ignore :option:`--title` when using a session file that defines no
+  windows (:iss:`3055`)
+
+- Fix the send_text action not working in URL handlers (:iss:`3081`)
+
+- Fix last character of URL not being detected if it is the only character on a
+  new line (:iss:`3088`)
+
+- Don't restrict the ICH,DCH,REP control codes to only the current scroll region  (:iss:`3090`, :iss:`3096`)
+
+
 0.19.1 [2020-10-06]
 -------------------
 
@@ -377,7 +922,7 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
   beam and underline cursors (:iss:`2337` and :pull:`2342`)
 
 - When the application running in the terminal grabs the mouse, pass middle
-  clicks to the application unless :opt:`terminal_select_modifiers` are
+  clicks to the application unless `terminal_select_modifiers` are
   pressed (:iss:`2368`)
 
 - A new ``copy_and_clear_or_interrupt`` function (:iss:`2403`)
@@ -485,7 +1030,7 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 - macOS: Add a :code:`titlebar-only` setting to
   :opt:`hide_window_decorations` to only hide the title bar (:pull:`2286`)
 
-- Fix a segfault when using :option:`kitty --debug-config` with maps (:iss:`2270`)
+- Fix a segfault when using ``--debug-config`` with maps (:iss:`2270`)
 
 - ``goto_tab`` now maps numbers larger than the last tab to the last tab
   (:iss:`2291`)
@@ -657,7 +1202,7 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
   the mouse pointer shape when the terminal programs grabs the pointer
   (:iss:`1808`)
 
-- Add an option :opt:`terminal_select_modifiers` to control which modifiers
+- Add an option `terminal_select_modifiers` to control which modifiers
   are used to override mouse selection even when a terminal application has
   grabbed the mouse (:iss:`1774`)
 
@@ -1230,8 +1775,7 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
   using standard keyboards) via `IBus
   <https://github.com/ibus/ibus/wiki/ReadMe>`_ (:iss:`469`)
 
-- Implement completion for the kitty command in bash and zsh. See
-  :ref:`completion`.
+- Implement completion for the kitty command in bash and zsh
 
 - Render the text under the cursor in a fixed color, configurable via
   the option :opt:`cursor_text_color` (:iss:`126`)
@@ -1361,8 +1905,8 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 
 - Support "-T" as an alias for "--title" (:pull:`659`)
 
-- Fix a regression in the previous release that broke using :option:`kitty
-  --debug-config` with custom key mappings (:iss:`695`)
+- Fix a regression in the previous release that broke using
+  ``--debug-config`` with custom key mappings (:iss:`695`)
 
 
 0.11.1 [2018-06-17]

docs/color-stack.rst

@@ -0,0 +1,26 @@
+Saving and restoring colors
+==============================
+
+It is often useful for a full screen application with its own color themes to
+set the default foreground, background, selection and cursor colors and the
+ANSI color table. This allows for various performance optimizations when
+drawing the screen. The problem is that if the user previously used the escape
+codes to change these colors herself, then running the full screen application
+will lose her changes even after it exits. To avoid this, kitty introduces a
+new pair of *OSC* escape codes to push and pop the current color values from a
+stack::
+
+    <ESC>]30001<ESC>\  # push onto stack
+    <ESC>]30101<ESC>\  # pop from stack
+
+These escape codes save/restore the colors, default
+background, default foreground, selection background, selection foreground and
+cursor color and the 256 colors of the ANSI color table.
+
+.. note:: In July 2020, after several years, XTerm copied this protocol
+   extension, without acknowledgement, and using incompatible escape codes
+   (XTPUSHCOLORS, XTPOPCOLORS, XTREPORTCOLORS). And they decided to save not
+   just the dynamic colors but the entire ANSI color table. In the interests of
+   promoting interoperability, kitty added support for XTerm's escape codes as
+   well, and changed this extension to also save/restore the entire ANSI color
+   table.

docs/conf.py

@@ -13,10 +13,7 @@ import subprocess
 import sys
 import time
 from functools import partial
-from typing import (
-    Any, Callable, Dict, Iterable, List, Match, Optional, Sequence, Tuple,
-    Union
-)
+from typing import Any, Callable, Dict, Iterable, List, Match, Optional, Tuple
 
 from docutils import nodes
 from docutils.parsers.rst.roles import set_classes
@@ -24,17 +21,15 @@ from pygments.lexer import RegexLexer, bygroups  # type: ignore
 from pygments.token import (  # type: ignore
     Comment, Keyword, Literal, Name, Number, String, Whitespace
 )
-from sphinx import addnodes  # type: ignore
-from sphinx.environment.adapters.toctree import TocTree  # type: ignore
+from sphinx import addnodes, version_info  # type: ignore
 from sphinx.util.logging import getLogger  # type: ignore
 
 kitty_src = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 if kitty_src not in sys.path:
     sys.path.insert(0, kitty_src)
 
-from kitty.conf.definition import Option, Shortcut  # noqa
-from kitty.constants import str_version  # noqa
-
+from kitty.conf.types import Definition  # noqa
+from kitty.constants import str_version, website_url  # noqa
 
 # config {{{
 # -- Project information -----------------------------------------------------
@@ -64,8 +59,14 @@ extensions = [
     'sphinx.ext.ifconfig',
     'sphinx.ext.viewcode',
     'sphinx.ext.githubpages',
+    'sphinx_copybutton',
+    'sphinx_inline_tabs',
+    "sphinxext.opengraph",
 ]
 
+# URL for OpenGraph tags
+ogp_site_url = website_url()
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
@@ -89,13 +90,10 @@ language: Optional[str] = None
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path .
 exclude_patterns = [
-    '_build', 'Thumbs.db', '.DS_Store',
-    'generated/cli-*.rst', 'generated/conf-*.rst'
+    '_build', 'Thumbs.db', '.DS_Store', 'basic.rst',
+    'generated/cli-*.rst', 'generated/conf-*.rst', 'generated/actions.rst'
 ]
 
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
-
 rst_prolog = '''
 .. |kitty| replace:: *kitty*
 .. |version| replace:: VERSION
@@ -105,7 +103,6 @@ rst_prolog = '''
 .. role:: bold
 .. role:: cyan
 .. role:: title
-.. role:: env
 
 '''.replace('VERSION', str_version)
 
@@ -115,35 +112,26 @@ rst_prolog = '''
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = 'furo'
+html_title = 'kitty'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
 #
-html_theme_options = {
-    'logo': 'kitty.png',
-    'show_powered_by': False,
-    'fixed_sidebar': True,
-    'sidebar_collapse': True,
-    'github_button': False,
-    'github_banner': True,
-    'github_user': 'kovidgoyal',
-    'github_repo': 'kitty',
-    # increase contrast of link color with text color
-    'link': '#00587d',
-    'link_hover': 'green',
+html_theme_options: Dict[str, Any] = {
+    'sidebar_hide_name': True,
+    'navigation_with_keys': True,
 }
 
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static', '../logo/kitty.png']
-html_context = {
-    'css_files': ['_static/custom.css']
-}
-html_favicon = '../logo/kitty.png'
+html_static_path = ['_static']
+html_favicon = html_logo = '../logo/kitty.svg'
+html_css_files = ['custom.css']
+html_js_files = ['custom.js']
 
 # Custom sidebar templates, must be a dictionary that maps document names
 # to template names.
@@ -153,25 +141,17 @@ html_favicon = '../logo/kitty.png'
 # default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
 # 'searchbox.html']``.
 #
-html_sidebars = {
-    '**': [
-        'about.html',
-        'support.html',
-        'searchbox.html',
-        'localtoc.html',
-        'relations.html',
-    ]
-}
 html_show_sourcelink = False
-
+html_show_sphinx = False
+manpages_url = 'https://man7.org/linux/man-pages/man{section}/{page}.{section}.html'
 
 # -- Options for manual page output ------------------------------------------
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('invocation', 'kitty', 'kitty Documentation',
-     [author], 1)
+    ('invocation', 'kitty', 'kitty Documentation', [author], 1),
+    ('conf', 'kitty.conf', 'kitty.conf Documentation', [author], 5)
 ]
 
 
@@ -182,7 +162,7 @@ man_pages = [
 #  dir menu entry, description, category)
 texinfo_documents = [
     (master_doc, 'kitty', 'kitty Documentation',
-     author, 'kitty', 'A cross-platform, fast, feature full, GPU based terminal emulator',
+     author, 'kitty', 'Cross-platform, fast, feature-rich, GPU based terminal',
      'Miscellaneous'),
 ]
 # }}}
@@ -227,32 +207,10 @@ def commit_role(name: str, rawtext: str, text: str, lineno: int, inliner: Any, o
 # }}}
 
 
-# Sidebar ToC {{{
-def create_toc(app: Any, pagename: str) -> Optional[Any]:
-    tt = TocTree(app.env)
-    toctree = tt.get_toc_for(pagename, app.builder)
-    if toctree is not None:
-        subtree = toctree[toctree.first_child_matching_class(nodes.list_item)]
-        bl = subtree.first_child_matching_class(nodes.bullet_list)
-        if bl is None:
-            return None  # Empty ToC
-        subtree = subtree[bl]
-        # for li in subtree.traverse(nodes.list_item):
-        #     modify_li(li)
-        # subtree['ids'] = [ID]
-        return app.builder.render_partial(subtree)['fragment']
-
-
-def add_html_context(app: Any, pagename: str, templatename: str, context: Any, *args: Any) -> None:
-    if 'toc' in context:
-        context['toc'] = create_toc(app, pagename) or context['toc']
-# }}}
-
-
 # CLI docs {{{
 def write_cli_docs(all_kitten_names: Iterable[str]) -> None:
-    from kitty.launch import options_spec as launch_options_spec
     from kitty.cli import option_spec_as_rst
+    from kitty.launch import options_spec as launch_options_spec
     with open('generated/launch.rst', 'w') as f:
         f.write(option_spec_as_rst(
             appname='launch', ospec=launch_options_spec, heading_char='_',
@@ -267,7 +225,7 @@ if you specify a program-to-run you can use the special placeholder
             'kitty --to', 'kitty @ --to'))
     as_rst = partial(option_spec_as_rst, heading_char='_')
     from kitty.rc.base import all_command_names, command_for_name
-    from kitty.remote_control import global_options_spec, cli_msg
+    from kitty.remote_control import cli_msg, global_options_spec
     with open('generated/cli-kitty-at.rst', 'w') as f:
         p = partial(print, file=f)
         p('kitty @\n' + '-' * 80)
@@ -288,6 +246,11 @@ if you specify a program-to-run you can use the special placeholder
             with open(f'generated/cli-kitten-{kitten}.rst', 'w') as f:
                 p = partial(print, file=f)
                 p('.. program::', f'kitty +kitten {kitten}')
+                p(f'\nSource code for {kitten}')
+                p('-' * 72)
+                p(f'\nThe source code for this kitten is `available on GitHub <https://github.com/kovidgoyal/kitty/tree/master/kittens/{kitten}>`_.')
+                p('\nCommand Line Interface')
+                p('-' * 72, file=f)
                 p('\n\n' + option_spec_as_rst(
                     data['options'], message=data['help_text'], usage=data['usage'], appname=f'kitty +kitten {kitten}',
                     heading_char='^'))
@@ -296,7 +259,9 @@ if you specify a program-to-run you can use the special placeholder
 
 
 def write_remote_control_protocol_docs() -> None:  # {{{
-    from kitty.rc.base import all_command_names, command_for_name, RemoteCommand
+    from kitty.rc.base import (
+        RemoteCommand, all_command_names, command_for_name
+    )
     field_pat = re.compile(r'\s*([a-zA-Z0-9_+]+)\s*:\s*(.+)')
 
     def format_cmd(p: Callable, name: str, cmd: RemoteCommand) -> None:
@@ -352,6 +317,8 @@ class ConfLexer(RegexLexer):
             (r'(include)(\s+)(.+?)$', bygroups(Comment.Preproc, Whitespace, Name.Namespace)),
             (r'(map)(\s+)(\S+)(\s+)', bygroups(
                 Keyword.Declaration, Whitespace, String, Whitespace), 'action'),
+            (r'(mouse_map)(\s+)(\S+)(\s+)(\S+)(\s+)(\S+)(\s+)', bygroups(
+                Keyword.Declaration, Whitespace, String, Whitespace, Name.Variable, Whitespace, String, Whitespace), 'action'),
             (r'(symbol_map)(\s+)(\S+)(\s+)(.+?)$', bygroups(
                 Keyword.Declaration, Whitespace, String, Whitespace, Literal)),
             (r'([a-zA-Z_0-9]+)(\s+)', bygroups(
@@ -393,12 +360,14 @@ class SessionLexer(RegexLexer):
 
 
 def link_role(name: str, rawtext: str, text: str, lineno: int, inliner: Any, options: Any = {}, content: Any = []) -> Tuple[List, List]:
+    text = text.replace('\n', ' ')
     m = re.match(r'(.+)\s+<(.+?)>', text)
     if m is None:
         msg = inliner.reporter.error(f'link "{text}" not recognized', line=lineno)
         prb = inliner.problematic(rawtext, rawtext, msg)
         return [prb], [msg]
     text, url = m.group(1, 2)
+    url = url.replace(' ', '')
     set_classes(options)
     node = nodes.reference(rawtext, text, refuri=url, **options)
     return [node], []
@@ -450,87 +419,6 @@ def parse_shortcut_node(env: Any, sig: str, signode: Any) -> str:
     return sig
 
 
-def render_conf(conf_name: str, all_options: Iterable[Union['Option', Sequence['Shortcut']]]) -> str:
-    from kitty.conf.definition import merged_opts, Option, Group
-    ans = ['.. default-domain:: conf', '']
-    a = ans.append
-    current_group: Optional[Group] = None
-    all_options_ = list(all_options)
-    kitty_mod = 'kitty_mod'
-
-    def render_group(group: Group) -> None:
-        a('')
-        a(f'.. _conf-{conf_name}-{group.name}:')
-        a('')
-        a(group.short_text)
-        heading_level = '+' if '.' in group.name else '^'
-        a(heading_level * (len(group.short_text) + 20))
-        a('')
-        if group.start_text:
-            a(group.start_text)
-            a('')
-
-    def handle_group_end(group: Group) -> None:
-        if group.end_text:
-            assert current_group is not None
-            a(''), a(current_group.end_text)
-
-    def handle_group(new_group: Group, new_group_is_shortcut: bool = False) -> None:
-        nonlocal current_group
-        if new_group is not current_group:
-            if current_group:
-                handle_group_end(current_group)
-            current_group = new_group
-            render_group(current_group)
-
-    def handle_option(i: int, opt: Option) -> None:
-        nonlocal kitty_mod
-        if not opt.long_text or not opt.add_to_docs:
-            return
-        handle_group(opt.group)
-        if opt.name == 'kitty_mod':
-            kitty_mod = opt.defval_as_string
-        mopts = list(merged_opts(all_options_, opt, i))
-        a('.. opt:: ' + ', '.join(conf_name + '.' + mo.name for mo in mopts))
-        a('.. code-block:: conf')
-        a('')
-        sz = max(len(x.name) for x in mopts)
-        for mo in mopts:
-            a(('    {:%ds} {}' % sz).format(mo.name, mo.defval_as_string))
-        a('')
-        if opt.long_text:
-            a(expand_opt_references(conf_name, opt.long_text))
-            a('')
-
-    def handle_shortcuts(shortcuts: Sequence[Shortcut]) -> None:
-        sc = shortcuts[0]
-        handle_group(sc.group, True)
-        sc_text = f'{conf_name}.{sc.short_text}'
-        a('.. shortcut:: ' + sc_text)
-        shortcuts = [s for s in shortcuts if s.add_to_default]
-        shortcut_slugs[f'{conf_name}.{sc.name}'] = (sc_text, sc.key.replace('kitty_mod', kitty_mod))
-        if shortcuts:
-            a('.. code-block:: conf')
-            a('')
-            for x in shortcuts:
-                if x.add_to_default:
-                    a('    map {} {}'.format(x.key.replace('kitty_mod', kitty_mod), x.action_def))
-        a('')
-        if sc.long_text:
-            a(expand_opt_references(conf_name, sc.long_text))
-            a('')
-
-    for i, opt in enumerate(all_options_):
-        if isinstance(opt, Option):
-            handle_option(i, opt)
-        else:
-            handle_shortcuts(opt)
-
-    if current_group:
-        handle_group_end(current_group)
-    return '\n'.join(ans)
-
-
 def process_opt_link(env: Any, refnode: Any, has_explicit_title: bool, title: str, target: str) -> Tuple[str, str]:
     conf_name, opt = target.partition('.')[::2]
     if not opt:
@@ -555,7 +443,7 @@ def process_shortcut_link(env: Any, refnode: Any, has_explicit_title: bool, titl
 
 
 def write_conf_docs(app: Any, all_kitten_names: Iterable[str]) -> None:
-    app.add_lexer('conf', ConfLexer)
+    app.add_lexer('conf', ConfLexer() if version_info[0] < 3 else ConfLexer)
     app.add_object_type(
         'opt', 'opt',
         indextemplate="pair: %s; Config Setting",
@@ -574,29 +462,47 @@ def write_conf_docs(app: Any, all_kitten_names: Iterable[str]) -> None:
     sc_role = app.registry.domain_roles['std']['sc']
     sc_role.warn_dangling = True
     sc_role.process_link = process_shortcut_link
+    shortcut_slugs.clear()
 
-    def generate_default_config(all_options: Dict[str, Union[Option, Sequence[Shortcut]]], name: str) -> None:
-        from kitty.conf.definition import as_conf_file
+    def generate_default_config(definition: Definition, name: str) -> None:
         with open(f'generated/conf-{name}.rst', 'w', encoding='utf-8') as f:
             print('.. highlight:: conf\n', file=f)
-            f.write(render_conf(name, all_options.values()))
+            f.write('\n'.join(definition.as_rst(name, shortcut_slugs)))
 
         conf_name = re.sub(r'^kitten-', '', name) + '.conf'
         with open(f'generated/conf/{conf_name}', 'w', encoding='utf-8') as f:
-            text = '\n'.join(as_conf_file(all_options.values()))
+            text = '\n'.join(definition.as_conf())
             print(text, file=f)
 
-    from kitty.config_data import all_options
-    generate_default_config(all_options, 'kitty')
+    from kitty.options.definition import definition
+    generate_default_config(definition, 'kitty')
 
     from kittens.runner import get_kitten_conf_docs
     for kitten in all_kitten_names:
-        all_options = get_kitten_conf_docs(kitten)
-        if all_options:
-            generate_default_config(all_options, f'kitten-{kitten}')
+        definition = get_kitten_conf_docs(kitten)
+        if definition:
+            generate_default_config(definition, f'kitten-{kitten}')
+
+    from kitty.actions import as_rst
+    with open('generated/actions.rst', 'w', encoding='utf-8') as f:
+        f.write(as_rst())
 # }}}
 
 
+def add_html_context(app: Any, pagename: str, templatename: str, context: Any, doctree: Any, *args: Any) -> None:
+    context['analytics_id'] = app.config.analytics_id
+    if 'toctree' in context:
+        # this is needed with furo to use all titles from pages
+        # in the sidebar (global) toc
+        original_toctee_function = context['toctree']
+
+        def include_sub_headings(**kwargs: Any) -> Any:
+            kwargs['titles_only'] = False
+            return original_toctee_function(**kwargs)
+
+        context['toctree'] = include_sub_headings
+
+
 def setup(app: Any) -> None:
     os.makedirs('generated/conf', exist_ok=True)
     from kittens.runner import all_kitten_names
@@ -604,9 +510,11 @@ def setup(app: Any) -> None:
     write_cli_docs(kn)
     write_remote_control_protocol_docs()
     write_conf_docs(app, kn)
-    app.add_lexer('session', SessionLexer)
+    app.add_config_value('analytics_id', '', 'env')
+    app.connect('html-page-context', add_html_context)
+    app.add_lexer('session', SessionLexer() if version_info[0] < 3 else SessionLexer)
     app.add_role('link', link_role)
     app.add_role('iss', partial(num_role, 'issues'))
     app.add_role('pull', partial(num_role, 'pull'))
+    app.add_role('disc', partial(num_role, 'discussions'))
     app.add_role('commit', commit_role)
-    app.connect('html-page-context', add_html_context)

docs/conf.rst

@@ -1,17 +1,16 @@
-:tocdepth: 2
-
-Configuring kitty
-===============================
+kitty.conf
+-----------------------
 
 .. highlight:: conf
 
-|kitty| is highly customizable, everything from keyboard shortcuts, to painting
-frames-per-second. See below for an overview of all customization
+|kitty| is highly customizable, everything from keyboard shortcuts, to
+rendering frames-per-second. See below for an overview of all customization
 possibilities.
 
 You can open the config file within kitty by pressing :sc:`edit_config_file`.
-You can also display the current configuration by running ``kitty
---debug-config``.
+You can reload the config file within kitty by pressing
+:sc:`reload_config_file` or sending kitty the ``SIGUSR1`` signal.  You can also
+display the current configuration by pressing the :sc:`debug_config` key.
 
 .. _confloc:
 
@@ -33,12 +32,37 @@ expanded, so :code:`${USER}.conf` becomes :file:`name.conf` if
      include other.conf
 
 
+.. note:: Syntax highlighting for :file:`kitty.conf` in vim is available via
+   `vim-kitty <https://github.com/fladson/vim-kitty>`_.
+
+
 .. include:: /generated/conf-kitty.rst
 
 
 Sample kitty.conf
-^^^^^^^^^^^^^^^^^^^^^
+--------------------
 
-You can download a sample :file:`kitty.conf` file with all default settings and
-comments describing each setting by clicking: :download:`sample kitty.conf
-</generated/conf/kitty.conf>`.
+.. only:: html
+
+    You can download a sample :file:`kitty.conf` file with all default settings and
+    comments describing each setting by clicking: :download:`sample kitty.conf
+    </generated/conf/kitty.conf>`.
+
+.. only:: man
+
+   You can edit a fully commented sample kitty.conf by pressing the
+   :sc:`edit_config_file` shortcut in kitty. This will generate a config
+   file with full documentation and all settings commented out. If you
+   have a pre-existing kitty.conf, then that will be used instead, delete
+   it to see the sample file.
+
+
+All mappable actions
+------------------------
+
+See the :doc:`list of all the things you can make kitty can do </actions>`.
+
+.. toctree::
+   :hidden:
+
+   actions

docs/deccara.rst

@@ -0,0 +1,21 @@
+Setting text styles/colors in arbitrary regions of the screen
+------------------------------------------------------------------
+
+There already exists an escape code to set *some* text attributes in arbitrary
+regions of the screen, `DECCARA
+<https://vt100.net/docs/vt510-rm/DECCARA.html>`_.  However, it is limited to
+only a few attributes. |kitty| extends this to work with *all* SGR attributes.
+So, for example, this can be used to set the background color in an arbitrary
+region of the screen.
+
+The motivation for this extension is the various problems with the existing
+solution for erasing to background color, namely the *background color erase
+(bce)* capability. See
+`this discussion <https://github.com/kovidgoyal/kitty/issues/160#issuecomment-346470545>`_
+and `this FAQ <https://invisible-island.net/ncurses/ncurses.faq.html#bce_mismatches>`_
+for a summary of problems with *bce*.
+
+For example, to set the background color to blue in a
+rectangular region of the screen from (3, 4) to (10, 11), you use::
+
+    <ESC>[2*x<ESC>[4;3;11;10;44$r<ESC>[*x

docs/desktop-notifications.rst

@@ -0,0 +1,122 @@
+.. _desktop_notifications:
+
+
+Desktop notifications
+=======================
+
+|kitty| implements an extensible escape code (OSC 99) to show desktop
+notifications. It is easy to use from shell scripts and fully extensible to
+show title and body.  Clicking on the notification can optionally focus the
+window it came from, and/or send an escape code back to the application running
+in that window.
+
+The design of the escape code is partially based on the discussion in
+the defunct
+`terminal-wg <https://gitlab.freedesktop.org/terminal-wg/specifications/-/issues/13>`_
+
+The escape code has the form::
+
+    <OSC> 99 ; metadata ; payload <terminator>
+
+Here ``<OSC>`` is :code:`<ESC>]` and ``<terminator>`` is
+:code:`<ESC><backslash>`.  The metadata is a section of colon separated
+:code:`key=value` pairs. Every key must be a single character from the set
+:code:`a-zA-Z` and every value must be a word consisting of characters from
+the set :code:`a-zA-Z0-9-_/\+.,(){}[]*&^%$#@!`~`. The payload must be
+interpreted based on the metadata section. The two semi-colons *must* always be
+present even when no metadata is present.
+
+Before going into details, lets see how one can display a simple, single line
+notification from a shell script::
+
+    printf '\x1b]99;;Hello world\x1b\\'
+
+To show a message with a title and a body::
+
+    printf '\x1b]99;i=1:d=0;Hello world\x1b\\'
+    printf '\x1b]99;i=1:d=1:p=body;This is cool\x1b\\'
+
+The most important key in the metadata is the ``p`` key, it controls how the
+payload is interpreted. A value of ``title`` means the payload is setting the
+title for the notification. A value of ``body`` means it is setting the body,
+and so on, see the table below for full details.
+
+The design of the escape code is fundamentally chunked, this is because
+different terminal emulators have different limits on how large a single escape
+code can be. Chunking is accomplished by the ``i`` and ``d`` keys. The ``i``
+key is the *notification id* which can be any string containing the characters
+``[a-zA-Z0-9_-+.]``. The ``d`` key stands for *done* and
+can only take the values ``0`` and ``1``. A value of ``0`` means the
+notification is not yet done and the terminal emulator should hold off
+displaying it. A value of ``1`` means the notification is done, and should be
+displayed. You can specify the title or body multiple times and the terminal
+emulator will concatenate them, thereby allowing arbitrarily long text
+(terminal emulators are free to impose a sensible limit to avoid
+Denial-of-Service attacks).
+
+Both the ``title`` and ``body`` payloads must be either UTF-8 encoded plain
+text with no embedded escape codes, or UTF-8 text that is base64 encoded, in
+which case there must be an ``e=1`` key in the metadata to indicate the payload
+is base64 encoded.
+
+When the user clicks the notification, a couple of things can happen, the
+terminal emulator can focus the window from which the notification came, and/or
+it can send back an escape code to the application indicating the notification
+was activated. This is controlled by the ``a`` key which takes a comma
+separated set of values, ``report`` and ``focus``. The value ``focus`` means
+focus the window from which the notification was issued and is the default.
+``report`` means send an escape code back to the application. The format of the
+returned escape code is::
+
+    <OSC> 99 ; i=identifier ; <terminator>
+
+The value of ``identifier`` comes from the ``i`` key in the escape code sent by
+the application. If the application sends no identifier, then the terminal
+*must* use ``i=0``. Actions can be preceded by a negative sign to turn them
+off, so for example if you do not want any action, turn off the default
+``focus`` action with::
+
+    a=-focus
+
+Complete specification of all the metadata keys is in the table below. If a
+terminal emulator encounters a key in the metadata it does not understand,
+the key *must* be ignored, to allow for future extensibility of this escape
+code. Similarly if values for known keys are unknown, the terminal emulator
+*should* either ignore the entire escape code or perform a best guess effort
+to display it based on what it does understand.
+
+.. note::
+   It is possible to extend this escape code to allow specifying an icon for
+   the notification, however, given that some platforms, such as macOS, dont
+   allow displaying custom icons on a notification, at all, it was decided to
+   leave it out of the spec for the time being.
+
+   Similarly, features such as scheduled notifications could be added in future
+   revisions.
+
+
+=======  ====================  =========  =================
+Key      Value                 Default    Description
+=======  ====================  =========  =================
+``a``    Comma separated list  ``focus``  What action to perform when the
+         of ``report``,                   notification is clicked
+         ``focus``, with
+         optional leading
+         ``-``
+
+``d``    ``0`` or ``1``        ``1``      Indicates if the notification is
+                                          complete or not.
+
+``e``    ``0`` or ``1``        ``0``      If set to ``1`` means the payload is base64 encoded UTF-8,
+                                          otherwise it is plain UTF-8 text with no C0 control codes in it
+
+``i``    ``[a-zA-Z0-9-_+.]``   ``0``      Identifier for the notification
+
+``p``    One of ``title`` or   ``title``  Whether the payload is the notification title or body. If a
+         ``body``.                        notification has no title, the body will be used as title.
+=======  ====================  =========  =================
+
+
+.. note::
+   |kitty| also supports the legacy OSC 9 protocol developed by iTerm2 for
+   desktop notifications.

docs/faq.rst

@@ -3,8 +3,6 @@ Frequently Asked Questions
 
 .. highlight:: sh
 
-.. contents::
-
 Some special symbols are rendered small/truncated in kitty?
 -----------------------------------------------------------
 
@@ -35,7 +33,7 @@ it by adding the following to your vimrc::
 
     let &t_ut=''
 
-See :ref:`here <ext_styles>` for why |kitty| does not support background color erase.
+See :doc:`here <deccara>` for why |kitty| does not support background color erase.
 
 
 I get errors about the terminal being unknown or opening the terminal failing when SSHing into a different computer?
@@ -47,12 +45,24 @@ terminfo files to the server::
 
     kitty +kitten ssh myserver
 
+This ssh kitten takes all the same command line arguments
+as ssh, you can alias it to ssh in your shell's rc files to avoid having to
+type it each time::
+
+    alias ssh="kitty +kitten ssh"
+
 If for some reason that does not work (typically because the server is using a
-non POSIX compliant shell), you can use the following one-liner instead (it
+non POSIX compliant shell as ``/bin/sh``), you can try using it with ``python``
+instead::
+
+    kitty +kitten ssh use-python myserver
+
+If that also fails, perhaps because python is not installed on the remote
+server, use the following one-liner instead (it
 is slower as it needs to ssh into the server twice, but will work with most
 servers)::
 
-    infocmp xterm-kitty | ssh myserver tic -x -o \~/.terminfo /dev/stdin
+    infocmp -a xterm-kitty | ssh myserver tic -x -o \~/.terminfo /dev/stdin
 
 If you are behind a proxy (like Balabit) that prevents this, you must redirect the
 1st command to a file, copy that to the server and run ``tic`` manually.  If you
@@ -108,7 +118,7 @@ How do I change the colors in a running kitty instance?
 ------------------------------------------------------------
 
 You can either use the
-`OSC terminal escape codes <https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Operating-System-Commands>`_
+`OSC terminal escape codes <https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-Operating-System-Commands>`_
 to set colors or you can define keyboard shortcuts to set colors, for example::
 
     map f1 set_colors --configured /path/to/some/config/file/colors.conf
@@ -158,6 +168,19 @@ You can, of course, also run |kitty| from a terminal with command line options,
 And within |kitty| itself, you can always run |kitty| using just `kitty` as it
 cleverly adds itself to the ``PATH``.
 
+I catted a binary file and now kitty is hung?
+-----------------------------------------------
+
+**Never** output unknown binary data directly into a terminal.
+
+Terminals have a single channel for both data and control. Certain bytes
+are control codes. Some of these control codes are of arbitrary length, so
+if the binary data you output into the terminal happens to contain the starting
+sequence for one of these control codes, the terminal will hang waiting for
+the closing sequence. Press :kbd:`ctrl+shift+delete` to reset the terminal.
+
+If you do want to cat unknown data, use ``cat -v``.
+
 
 kitty is not able to use my favorite font?
 ---------------------------------------------
@@ -165,9 +188,12 @@ kitty is not able to use my favorite font?
 |kitty| achieves its stellar performance by caching alpha masks of each rendered
 character on the GPU, so that every character needs to be rendered only once.
 This means it is a strictly character cell based display.  As such it can use
-only monospace fonts, since every cell in the grid has to be the same size. If
-your font is not listed in ``kitty list-fonts`` it means that it is not
-monospace. On Linux you can list all monospace fonts with::
+only monospace fonts, since every cell in the grid has to be the same size.
+Furthermore, it needs fonts to be freely resizable, so it does not support
+bitmapped fonts.
+
+If your font is not listed in ``kitty list-fonts`` it means that it is not
+monospace or is a bitmapped font. On Linux you can list all monospace fonts with::
 
     fc-list : family spacing outline scalable | grep -e spacing=100 -e spacing=90 | grep -e outline=True | grep -e scalable=True
 
@@ -179,7 +205,7 @@ following :file:`~/.config/fontconfig/fonts.conf`::
     <?xml version="1.0"?>
     <!DOCTYPE fontconfig SYSTEM "fonts.dtd">
     <fontconfig>
-    <match target="font">
+    <match target="scan">
         <test name="family">
             <string>Your Font Family Name</string>
         </test>
@@ -212,26 +238,53 @@ How do I map key presses in kitty to different keys in the terminal program?
 This is accomplished by using ``map`` with :sc:`send_text <send_text>` in :file:`kitty.conf`.
 For example::
 
-    map alt+s send_text all \x13
+    map alt+s send_text normal,application \x13
 
 This maps :kbd:`alt+s` to :kbd:`ctrl+s`. To figure out what bytes to use for
-the :sc:`send_text <send_text>` you can use the ``showkey`` utility. Run::
+the :sc:`send_text <send_text>` you can use the ``show_key`` kitten. Run::
 
-    showkey -a
+    kitty +kitten show_key
 
-Then press the key you want to emulate. On macOS, this utility is currently not
-available. The manual way to figure it out is:
+Then press the key you want to emulate.
 
-    1. Look up your key's decimal value in the table at the bottom of `this
-       page <http://ascii-table.com/ansi-escape-sequences.php>`_ or any
-       ANSI escape sequence table. There are different modifiers for :kbd:`ctrl`,
-       :kbd:`alt`, etc. For e.g., for :kbd:`ctrl+s`, find the ``S`` row and look at
-       the third column value, ``19``.
+How do I open a new window or tab with the same working directory as the current window?
+--------------------------------------------------------------------------------------------
 
-    2. Convert the decimal value to hex with ``kitty +runpy "print(hex(19))"``.
-       This shows the hex value, ``13`` in this case.
+In :file:`kitty.conf` add the following::
 
-    3. Use ``\x(hexval)`` in your ``send_text`` command in kitty. So in this example, ``\x13``
+    map f1 launch --cwd=current
+    map f2  launch --cwd=current --type=tab
+
+Pressing :kbd:`F1` will open a new kitty window with the same working directory
+as the current window. The :doc:`launch command <launch>` is very powerful,
+explore :doc:`its documentation <launch>`.
+
+
+Things behave differently when running kitty from system launcher vs. from another terminal?
+-----------------------------------------------------------------------------------------------
+
+This will be because of environment variables. When you run kitty from the
+system launcher, it gets a default set of system environment variables. When
+you run kitty from another terminal, you are actually running it from a shell,
+and the shell's rc files will have setup a whole different set of environment
+variables which kitty will now inherit.
+
+You need to make sure that the environment variables you define in your shell's
+rc files are either also defined system wide or via the :opt:`env` directive in
+:file:`kitty.conf`. Common environment variables that cause issues are those
+related to localization, such as ``LANG, LC_*`` and loading of configuration
+files such as ``XDG_*, KITTY_CONFIG_DIRECTORY``.
+
+To see the environment variables that kitty sees, you can add the following
+mapping to :file:`kitty.conf`::
+
+    map f1 show_kitty_env_vars
+
+then pressing :kbd:`F1` will show you the environment variables kitty sees.
+
+This problem is most common on macOS, as Apple makes it exceedingly difficult to
+setup environment variables system-wide, so people end up putting them in all
+sorts of places where they may or may not work.
 
 
 I am using tmux and have a problem
@@ -251,11 +304,44 @@ terminal and then switch to another and these terminals have different TERM
 variables, tmux will break. You will need to restart it as tmux does not
 support multiple terminfo definitions.
 
-Copying to clipboard via OSC 52 will not work, because tmux does not support
-the extended version of that protocol, you will need to add ``no-append`` to
-:opt:`clipboard_control` in kitty.conf.
-
 If you use any of the advanced features that kitty has innovated, such as
 styled underlines, desktop notifications, extended keyboard support, etc.
 they may or may not work, depending on the whims of tmux's maintainer, your
 version of tmux, etc.
+
+
+I opened and closed a lot of windows/tabs and top shows kitty's memory usage is very high?
+-------------------------------------------------------------------------------------------
+
+``top`` is not a good way to measure process memory usage. That is because on
+modern systems, when allocating memory to a process, the C library functions
+will typically allocate memory in large blocks, and give the process chunks of
+these blocks. When the process frees a chunk, the C library will not
+necessarily release the underlying block back to the OS. So even though the
+application has released the memory, ``top`` will still claim the process is
+using it.
+
+To check for memory leaks, instead use a tool like ``valgrind``. Run::
+
+    PYTHONMALLOC=malloc valgrind --tool=massif kitty
+
+Now open lots of tabs/windows, generate lots of output using tools like find/yes
+etc. Then close all but one window. Do some random work for a few seconds in
+that window, maybe run yes or find again. Then quit kitty and run::
+
+    massif-visualizer massif.out.*
+
+You will see the allocations graph goes up when you opened the windows, then
+goes back down when you closed them, indicating there were no memory leaks.
+
+For those interested, you can get a similar profile out of ``valgrind`` as you get
+with ``top`` by adding ``--pages-as-heap=yes`` then you will see that memory
+allocated in malloc is not freed in free. This can be further refined if you
+use `glibc`` as your C library by setting the environment variable
+``MALLOC_MMAP_THRESHOLD_=64``. This will cause free to actually free memory
+allocated in sizes of more than 64 bytes. With this set, memory usage will
+climb high, then fall when closing windows, but not fall all the way back. The
+remaining used memory can be investigated using valgrind again, and it will
+come from arenas in the GPU drivers and the per thread arenas glibc's malloc
+maintains. These too allocate memory in large blocks and dont release it back
+to the OS immediately.

docs/glossary.rst

@@ -0,0 +1,122 @@
+:orphan:
+
+Glossary
+=========
+
+.. glossary::
+
+   os_window
+     kitty has two kinds of windows. Operating System windows, refered to as :term:`OS
+     Window <os_window>`, and *kitty windows*. An OS Window consists of one or more kitty
+     :term:`tabs <tab>`. Each tab in turn consists of one or more *kitty
+     windows* organized in a :term:`layout`.
+
+   tab
+     A *tab* refers to a group of :term:`kitty windows <window>`, organized in
+     a :term:`layout`. Every :term:`OS Window <os_window>` contains one or more tabs.
+
+   layout
+     A *layout* is a system of organizing :term:`kitty windows <window>` in
+     groups inside a tab. The layout automatically maintains the size and
+     position of the windows, think of a layout as a tiling window manager for
+     the terminal. See :doc:`layouts` for details.
+
+   window
+     kitty has two kinds of windows. Operating System windows, refered to as :term:`OS
+     Window <os_window>`, and *kitty windows*. An OS Window consists of one or more kitty
+     :term:`tabs <tab>`. Each tab in turn consists of one or more *kitty
+     windows* organized in a :term:`layout`.
+
+   overlay
+      An *overlay window* is a :term:`kitty window <window>` that is placed on
+      top of an existing kitty window, entirely covering it. Overlays are used
+      throught kitty, for example, to display the :ref:`the scrollback buffer <scrollback>`,
+      to display :doc:`hints </kittens/hints>`, for :doc:`unicode input
+      </kittens/unicode-input>` etc.
+
+   hyperlinks
+      Terminals can have hyperlinks, just like the internet. In kitty you can
+      :doc:`control exactly what happens <open_actions>` when clicking on a
+      hyperlink, based on the type of link and its URL.
+
+.. _env_vars:
+
+Environment variables
+------------------------
+
+Variables that influence kitty behavior
+
+.. envvar:: KITTY_CONFIG_DIRECTORY
+
+   Controls where kitty looks for :file:`kitty.conf` and other configuration
+   files. Defaults to :file:`~/.config/kitty`. For full details of the config
+   directory lookup mechanism see, :option:`kitty --config`.
+
+
+.. envvar:: VISUAL
+
+   The terminal editor (such as ``vi`` or ``nano``) kitty uses, when, for
+   instance, opening :file:`kitty.conf` in response to :sc:`edit_config_file`.
+
+
+.. envvar:: EDITOR
+
+   Same as :envvar:`VISUAL`. Used if :envvar:`VISUAL` is not set.
+
+
+Variables that kitty sets when running child programs
+
+.. envvar:: KITTY_WINDOW_ID
+
+   An integer that is the id for the kitty :term:`window` the program is running in.
+   Can be used with the :doc:`kitty remote control facility <remote-control>`.
+
+
+.. envvar:: WINDOWID
+
+   The id for the :term:`OS Window <os_window>` the program is running in. Only available
+   on platforms that have ids for their windows, such as X11 and macOS.
+
+
+.. envvar:: TERM
+
+   The name of the terminal, defaults to ``xterm-kitty``. See :opt:`term`.
+
+
+.. envvar:: TERMINFO
+
+   Path to a directory containing the kitty terminfo database.
+
+
+.. envvar:: COLORTERM
+
+   Set to the value ``truecolor`` to indicate that kitty supports 16 million
+   colors.
+
+
+.. envvar:: KITTY_LISTEN_ON
+
+   Set when the :doc:`remote control <remote-control>` facility is enabled and
+   the a socket is used for control via :option:`kitty --listen-on` or :opt:`listen_on`.
+   Contains the path to the socket. Avoids needs to use :option:`kitty @ --to` when
+   issuing remote control commands.
+
+
+.. envvar:: KITTY_PIPE_DATA
+
+   Set to data describing the layout of the screen when running child
+   programs using :option:`launch --stdin-source` with the contents of the
+   screen/scrollback piped to them.
+
+
+.. envvar:: KITTY_CHILD_CMDLINE
+
+   Set to the command line of the child process running in the kitty
+   window when calling the notification callback program on terminal bell, see
+   :opt:`command_on_bell`.
+
+
+.. envvar:: KITTY_COMMON_OPTS
+
+   Set with the values of some common kitty options when running
+   kittens, so kittens can use them without needing to load kitty.conf.

docs/graphics-protocol.rst

@@ -1,18 +1,16 @@
-:tocdepth: 3
-
-The terminal graphics protocol
-==================================
+Terminal graphics protocol
+=================================
 
 The goal of this specification is to create a flexible and performant protocol
 that allows the program running in the terminal, hereafter called the *client*,
 to render arbitrary pixel (raster) graphics to the screen of the terminal
-emulator. The major design goals are
+emulator. The major design goals are:
 
- * Should not require terminal emulators to understand image formats.
- * Should allow specifying graphics to be drawn at individual pixel positions.
- * The graphics should integrate with the text, in particular it should be possible to draw graphics
-   below as well as above the text, with alpha blending. The graphics should also scroll with the text, automatically.
- * Should use optimizations when the client is running on the same computer as the terminal emulator.
+* Should not require terminal emulators to understand image formats.
+* Should allow specifying graphics to be drawn at individual pixel positions.
+* The graphics should integrate with the text, in particular it should be possible to draw graphics
+  below as well as above the text, with alpha blending. The graphics should also scroll with the text, automatically.
+* Should use optimizations when the client is running on the same computer as the terminal emulator.
 
 For some discussion regarding the design choices, see `#33
 <https://github.com/kovidgoyal/kitty/issues/33>`_.
@@ -28,18 +26,21 @@ alpha-blending and text over graphics.
     :alt: Demo of graphics rendering in kitty
     :align: center
 
-Some programs that use the kitty graphics protocol:
+Some programs and libraries that use the kitty graphics protocol:
 
- * `termpdf.py <https://github.com/dsanson/termpdf.py>`_ - a terminal PDF/DJVU/CBR viewer
- * `ranger <https://github.com/ranger/ranger>`_ - a terminal file manager, with
-   image previews, see this `PR <https://github.com/ranger/ranger/pull/1077>`_
- * :doc:`kitty-diff <kittens/diff>` - a side-by-side terminal diff program with support for images
- * `pixcat <https://github.com/mirukana/pixcat>`_ - a third party CLI and python library that wraps the graphics protocol
- * `neofetch <https://github.com/dylanaraps/neofetch>`_ - A command line system
-   information tool
-
-
-.. contents::
+* `termpdf.py <https://github.com/dsanson/termpdf.py>`_ - a terminal PDF/DJVU/CBR viewer
+* `ranger <https://github.com/ranger/ranger>`_ - a terminal file manager, with
+  image previews, see this `PR <https://github.com/ranger/ranger/pull/1077>`_
+* :doc:`kitty-diff <kittens/diff>` - a side-by-side terminal diff program with support for images
+* `pixcat <https://github.com/mirukana/pixcat>`_ - a third party CLI and python library that wraps the graphics protocol
+* `neofetch <https://github.com/dylanaraps/neofetch>`_ - A command line system
+  information tool
+* `viu <https://github.com/atanunq/viu>`_ - a terminal image viewer
+* `glkitty <https://github.com/michaeljclark/glkitty>`_ - C library to draw OpenGL shaders in the terminal with a glgears demo
+* `ctx.graphics <https://ctx.graphics/>`_ - Library for drawing graphics
+* `timg <https://github.com/hzeller/timg>`_ - a terminal image and video viewer
+* `notcurses <https://github.com/dankamongmen/notcurses>`_ - C library for terminal graphics with bindings for C++, Rust and Python
+* `rasterm <https://github.com/BourgeoisBear/rasterm>`_  - Go library to display images in the the terminal
 
 
 Getting the window size
@@ -50,28 +51,33 @@ client must be able to get the window size in pixels and the number of cells
 per row and column. This can be done by using the ``TIOCGWINSZ`` ioctl.  Some
 code to demonstrate its use
 
-In C:
+.. tab:: C
 
-.. code-block:: c
+    .. code-block:: c
 
-    #include <stdio.h>
-    #include <sys/ioctl.h>
+        #include <stdio.h>
+        #include <sys/ioctl.h>
 
-    int main(int argc, char **argv) {
-        struct winsize sz;
-        ioctl(0, TIOCGWINSZ, &sz);
-        printf("number of rows: %i, number of columns: %i, screen width: %i, screen height: %i\n", sz.ws_row, sz.ws_col, sz.ws_xpixel, sz.ws_ypixel);
-        return 0;
-    }
+        int main(int argc, char **argv) {
+            struct winsize sz;
+            ioctl(0, TIOCGWINSZ, &sz);
+            printf(
+                "number of rows: %i, number of columns: %i, screen width: %i, screen height: %i\n",
+                sz.ws_row, sz.ws_col, sz.ws_xpixel, sz.ws_ypixel);
+            return 0;
+        }
 
-In Python:
 
-.. code-block:: python
+.. tab:: Python
 
-    import array, fcntl, sys, termios
-    buf = array.array('H', [0, 0, 0, 0])
-    fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ, buf)
-    print('number of rows: {}, number of columns: {}, screen width: {}, screen height: {}'.format(*buf))
+    .. code-block:: python
+
+        import array, fcntl, sys, termios
+        buf = array.array('H', [0, 0, 0, 0])
+        fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ, buf)
+        print((
+            'number of rows: {} number of columns: {}'
+            'screen width: {} screen height: {}').format(*buf))
 
 Note that some terminals return ``0`` for the width and height values. Such
 terminals should be modified to return the correct values.  Examples of
@@ -91,32 +97,36 @@ features of the graphics protocol:
 
 .. code-block:: python
 
-   import sys
-   from base64 import standard_b64encode
+    import sys
+    from base64 import standard_b64encode
 
-   def serialize_gr_command(cmd, payload=None):
-      cmd = ','.join('{}={}'.format(k, v) for k, v in cmd.items())
-      ans = []
-      w = ans.append
-      w(b'\033_G'), w(cmd.encode('ascii'))
-      if payload:
-         w(b';')
-         w(payload)
-      w(b'\033\\')
-      return b''.join(ans)
 
-   def write_chunked(cmd, data):
-      data = standard_b64encode(data)
-      while data:
-         chunk, data = data[:4096], data[4096:]
-         m = 1 if data else 0
-         cmd['m'] = m
-         sys.stdout.buffer.write(serialize_gr_command(cmd, chunk))
-         sys.stdout.flush()
-         cmd.clear()
+    def serialize_gr_command(**cmd):
+        payload = cmd.pop('payload', None)
+        cmd = ','.join('{}={}'.format(k, v) for k, v in cmd.items())
+        ans = []
+        w = ans.append
+        w(b'\033_G'), w(cmd.encode('ascii'))
+        if payload:
+            w(b';')
+            w(payload)
+        w(b'\033\\')
+        return b''.join(ans)
 
-   with open(sys.argv[-1], 'rb') as f:
-      write_chunked({'a': 'T', 'f': 100}, f.read())
+
+    def write_chunked(**cmd):
+        data = standard_b64encode(cmd.pop('data'))
+        while data:
+            chunk, data = data[:4096], data[4096:]
+            m = 1 if data else 0
+            sys.stdout.buffer.write(serialize_gr_command(payload=chunk, m=m,
+                                                        **cmd))
+            sys.stdout.flush()
+            cmd.clear()
+
+
+    with open(sys.argv[-1], 'rb') as f:
+        write_chunked(a='T', f=100, data=f.read())
 
 
 Save this script as :file:`png.py`, then you can use it to display any PNG
@@ -142,6 +152,8 @@ The meaning of the payload is interpreted based on the control data.
 
 The first step is to transmit the actual image data.
 
+.. _transferring_pixel_data:
+
 Transferring pixel data
 --------------------------
 
@@ -188,16 +200,17 @@ compression, then you must provide the ``S`` key with the size of the PNG data.
 Compression
 ~~~~~~~~~~~~~
 
-The client can send compressed image data to the terminal emulator, by specifying the
-``o`` key. Currently, only zlib based deflate compression is supported, which is specified using
-``o=z``. For example::
+The client can send compressed image data to the terminal emulator, by
+specifying the ``o`` key. Currently, only :rfc:`1950` ZLIB based deflate
+compression is supported, which is specified using ``o=z``. For example::
 
     <ESC>_Gf=24,s=10,v=20,o=z;<payload><ESC>\
 
 This is the same as the example from the RGB data section, except that the
-payload is now compressed using deflate. The terminal emulator will decompress
-it before rendering. You can specify compression for any format. The terminal
-emulator will decompress before interpreting the pixel data.
+payload is now compressed using deflate (this occurs prior to base64-encoding).
+The terminal emulator will decompress it before rendering. You can specify
+compression for any format. The terminal emulator will decompress before
+interpreting the pixel data.
 
 
 The transmission medium
@@ -216,8 +229,13 @@ Value of `t`          Meaning
                       is in a known temporary directory, such as :file:`/tmp`,
                       :file:`/dev/shm`, :file:`TMPDIR env var if present` and any platform
                       specific temporary directories.
-``s``                 A `POSIX shared memory object <http://man7.org/linux/man-pages/man7/shm_overview.7.html>`_.
-                      The terminal emulator will delete it after reading the pixel data
+``s``                 A *shared memory object*, which on POSIX systems is a
+                      `POSIX shared memory object <https://pubs.opengroup.org/onlinepubs/9699919799/functions/shm_open.html>`_
+                      and on Windows is a
+                      `Named shared memory object <https://docs.microsoft.com/en-us/windows/win32/memory/creating-named-shared-memory>`_.
+                      The terminal emulator must read the data from the memory
+                      object and then unlink and close it on POSIX and just
+                      close it on Windows.
 ==================    ============
 
 Local client
@@ -263,7 +281,7 @@ sequence of escape codes to the terminal emulator::
     <ESC>_Gm=0;<encoded pixel data last chunk><ESC>\
 
 Note that only the first escape code needs to have the full set of control
-codes such as width, height, format etc. Subsequent chunks must have
+codes such as width, height, format etc. Subsequent chunks **must** have
 only the ``m`` key. The client **must** finish sending all chunks for a single image
 before sending any other graphics related escape codes. Note that the cursor
 position used to display the image **must** be the position when the final chunk is
@@ -302,7 +320,7 @@ While as of May 2020, kitty is the only terminal emulator to support this
 graphics protocol, we intend that any terminal emulator that wishes to support
 it can. To check if a terminal emulator supports the graphics protocol the best way
 is to send the above *query action* followed by a request for the
-`primary device attributes <https://vt100.net/docs/vt510-rm/DA1.html>`. If you
+`primary device attributes <https://vt100.net/docs/vt510-rm/DA1.html>`_. If you
 get back an answer for the device attributes without getting back an answer for
 the *query action* the terminal emulator does not support the graphics
 protocol.
@@ -313,7 +331,7 @@ terminal emulators handle input in a FIFO manner, anyway.
 
 So for example, you could send::
 
-      <ESC>_Gi=31,s=1,v=1,a=q,t=d,f=24;<NUL><NUL><NUL><ESC>\<ESC>[c
+      <ESC>_Gi=31,s=1,v=1,a=q,t=d,f=24;AAAA<ESC>\<ESC>[c
 
 If you get back a response to the graphics query, the terminal emulator supports
 the protocol, if you get back a response to the device attributes query without
@@ -325,11 +343,12 @@ Display images on screen
 
 Every transmitted image can be displayed an arbitrary number of times on the
 screen, in different locations, using different parts of the source image, as
-needed. You can either simultaneously transmit and display an image using the
-action ``a=T``, or first transmit the image with a id, such as ``i=10`` and then display
-it with ``a=p,i=10`` which will display the previously transmitted image at the current
-cursor position. When specifying an image id, the terminal emulator will reply with an
-acknowledgement code, which will be either::
+needed. Each such display of an image is called a *placement*.  You can either
+simultaneously transmit and display an image using the action ``a=T``, or first
+transmit the image with a id, such as ``i=10`` and then display it with
+``a=p,i=10`` which will display the previously transmitted image at the current
+cursor position. When specifying an image id, the terminal emulator will reply
+to the placement request with an acknowledgement code, which will be either::
 
     <ESC>_Gi=<id>;OK<ESC>\
 
@@ -342,6 +361,24 @@ scheme described above for querying available transmission media, except that
 here we are querying if the image with the specified id is available or needs to
 be re-transmitted.
 
+Since there can be many placements per image, you can also give placements an
+id. To do so add the ``p`` key with a number between ``1`` and ``4294967295``.
+When you specify a placement id, it will be added to the acknowledgement code
+above. Every placement is uniquely identified by the pair of the ``image id``
+and the ``placement id``. If you specify a placement id for an image that does
+not have an id, it will be ignored. An example response::
+
+    <ESC>_Gi=<image id>,p=<placement id>;OK<ESC>\
+
+If you send two placements with the same ``image id`` and ``placement id`` the
+second one will replace the first. This can be used to resize or move
+placements around the screen, without flicker.
+
+
+.. versionadded:: 0.19.3
+   Support for specifying placement ids (see :doc:`kittens/query_terminal` to query kitty version)
+
+
 Controlling displayed image layout
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -368,6 +405,19 @@ allows rendering of text on top of images. Negative z-index values below
 INT32_MIN/2 (-1,073,741,824) will be drawn under cells with non-default background
 colors.
 
+.. note:: After placing an image on the screen the cursor must be moved to the
+   right by the number of cols in the image placement rectangle and down by the
+   number of rows in the image placement rectangle. If either of these cause
+   the cursor to leave either the screen or the scroll area, the exact
+   positioning of the cursor is undefined, and up to implementations.
+   The client can ask the terminal emulator to not move the cursor at all
+   by specifying ``C=1`` in the command, which sets the cursor movement policy
+   to no movement for placing the current image.
+
+.. versionadded:: 0.20.0
+   Support for the C=1 cursor movement policy
+
+
 Deleting images
 ---------------------
 
@@ -384,33 +434,257 @@ scrollback buffer. The values of the ``x`` and ``y`` keys are the same as cursor
 =================    ============
 Value of ``d``       Meaning
 =================    ============
-``a`` or ``A``       Delete all images visible on screen
-``i`` or ``I``       Delete all images with the specified id, specified using the ``i`` key.
-``c`` or ``C``       Delete all images that intersect with the current cursor position.
-``p`` or ``P``       Delete all images that intersect a specific cell, the cell is specified using the ``x`` and ``y`` keys
-``q`` or ``Q``       Delete all images that intersect a specific cell having a specific z-index. The cell and z-index is specified using the ``x``, ``y`` and ``z`` keys.
-``x`` or ``X``       Delete all images that intersect the specified column, specified using the ``x`` key.
-``y`` or ``Y``       Delete all images that intersect the specified row, specified using the ``y`` key.
-``z`` or ``Z``       Delete all images that have the specified z-index, specified using the ``z`` key.
+``a`` or ``A``       Delete all placements visible on screen
+``i`` or ``I``       Delete all images with the specified id, specified using the ``i`` key. If you specify a ``p`` key for the placement                      id as well, then only the placement with the specified image id and placement id will be deleted.
+``n`` or ``N``       Delete newest image with the specified number, specified using the ``I`` key. If you specify a ``p`` key for the
+                     placement id as well, then only the placement with the specified number and placement id will be deleted.
+``c`` or ``C``       Delete all placements that intersect with the current cursor position.
+``f`` or ``F``       Delete animation frames.
+``p`` or ``P``       Delete all placements that intersect a specific cell, the cell is specified using the ``x`` and ``y`` keys
+``q`` or ``Q``       Delete all placements that intersect a specific cell having a specific z-index. The cell and z-index is specified using the ``x``, ``y`` and ``z`` keys.
+``x`` or ``X``       Delete all placements that intersect the specified column, specified using the ``x`` key.
+``y`` or ``Y``       Delete all placements that intersect the specified row, specified using the ``y`` key.
+``z`` or ``Z``       Delete all placements that have the specified z-index, specified using the ``z`` key.
 =================    ============
 
 
+Note when all placements for an image have been deleted, the image is also
+deleted, if the capital letter form above is specified. Also, when the terminal
+is running out of quota space for new images, existing images without
+placements will be preferentially deleted.
 
 Some examples::
 
-    <ESC>_Ga=d<ESC>\             # delete all visible images
-    <ESC>_Ga=d,d=i,i=10<ESC>\    # delete the image with id=10, without freeing data
-    <ESC>_Ga=d,d=Z,z=-1<ESC>\    # delete the images with z-index -1, also freeing up image data
-    <ESC>_Ga=d,d=p,x=3,y=4<ESC>\ # delete all images that intersect the cell at (3, 4), without freeing data
+    <ESC>_Ga=d<ESC>\              # delete all visible placements
+    <ESC>_Ga=d,d=i,i=10<ESC>\     # delete the image with id=10, without freeing data
+    <ESC>_Ga=d,d=i,i=10,p=7<ESC>\ # delete the image with id=10 and placement id=7, without freeing data
+    <ESC>_Ga=d,d=Z,z=-1<ESC>\     # delete the placements with z-index -1, also freeing up image data
+    <ESC>_Ga=d,d=p,x=3,y=4<ESC>\  # delete all placements that intersect the cell at (3, 4), without freeing data
+
+
+Suppressing responses from the terminal
+-------------------------------------------
+
+If you are using the graphics protocol from a limited client, such as a shell
+script, it might be useful to avoid having to process responses from the
+terminal. For this, you can use the ``q`` key. Set it to ``1`` to suppress
+``OK`` responses and to ``2`` to suppress failure responses.
+
+.. versionadded:: 0.19.3
+   The ability to suppress responses (see :doc:`kittens/query_terminal` to query kitty version)
+
+
+Requesting image ids from the terminal
+-------------------------------------------
+
+If you are writing a program that is going to share the screen with other
+programs and you still want to use image ids, it is not possible to know
+what image ids are free to use. In this case, instead of using the ``i``
+key to specify an image id use the ``I`` key to specify an image number
+instead. These numbers are not unique.
+When creating a new image, even if an existing image has the same number a new
+one is created. And the terminal will reply with the id of the newly created
+image. For example, when creating an image with ``I=13``, the terminal will
+send the response::
+
+    <ESC>_Gi=99,I=13;OK<ESC>\
+
+Here, the value of ``i`` is the id for the newly created image and the value of
+``I`` is the same as was sent in the creation command.
+
+All future commands that refer to images using the image number, such as
+creating placements or deleting images, will act on only the newest image with
+that number. This allows the client program to send a bunch of commands dealing
+with an image by image number without waiting for a response from the terminal
+with the image id. Once such a response is received, the client program should
+use the ``i`` key with the image id for all future communication.
+
+.. note:: Specifying both ``i`` and ``I`` keys in any command is an error. The
+   terminal must reply with an EINVAL error message, unless silenced.
+
+.. versionadded:: 0.19.3
+   The ability to use image numbers (see :doc:`kittens/query_terminal` to query kitty version)
+
+
+.. _animation_protocol:
+
+Animation
+-------------------------------------------
+
+.. versionadded:: 0.20.0
+   Animation support (see :doc:`kittens/query_terminal` to query kitty version)
+
+When designing support for animation, the two main considerations were:
+
+#. There should be a way for both client and terminal driven animations.
+   Since there is unknown and variable latency between client and terminal,
+   especially over SSH, client driven animations are not sufficient.
+
+#. Animations often consist of small changes from one frame to the next, the
+   protocol should thus allow transmitting these deltas for efficiency and
+   performance reasons.
+
+Animation support is added to the protocol by adding two new modes for the
+``a`` (action) key. A ``f`` mode for transmitting frame data and an ``a`` mode
+for controlling the animation of an image. Animation proceeds in two steps,
+first a normal image is created as described earlier. Then animation frames are
+added to the image to make it into an animation. Since every animation is
+associated with a single image, all animation escape codes must specify either
+the ``i`` or ``I`` keys to identify the image being operated on.
+
+
+Transferring animation frame data
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Transferring animation frame data is very similar to
+:ref:`transferring_pixel_data` above. The main difference is that the image
+the frame belongs to must be specified and it is possible to transmit data for
+only part of a frame, declaring the rest of the frame to be filled in by data
+from a previous frame, or left blank. To transfer frame data the ``a=f``
+key must be used in all escape codes.
+
+First, to transfer a simple frame that has data for the full image area, the
+escape codes used are exactly the same as for transferring image data, with the
+addition of: ``a=f,i=<image id>`` or ``a=f,I=<image number>``.
+
+If the frame has data for only a part of the image, you can specify the
+rectangle for it using the ``x, y, s, v`` keys, for example::
+
+    x=10,y=5,s=100,v=200  # A 100x200 rectangle with its top left corner at (10, 5)
+
+Frames are created by composing the transmitted data onto a background canvas.
+This canvas can be either a single color, or the pixels from a previous frame.
+The composition can be of two types, either a simple replacement (``X=1``) key
+or a full alpha blend (the default).
+
+To use a background color for the canvas, specify the ``Y`` key as a 32-bit
+RGBA color. For example::
+
+    Y=4278190335 # 0xff0000ff opaque red
+    Y=16711816   # 0x00ff0088 translucent green (alpha=0.53)
+
+The default background color when none is specified is ``0`` i.e. a black,
+transparent pixel.
+
+To use the data from a previous frame, specify the ``c`` key which is a 1-based
+frame number. Thus ``c=1`` refers to the root frame (the base image data),
+``c=2`` refers to the second frame and so on.
+
+If the frame is composed of multiple rectangular blocks, these can be expressed
+by using the ``r`` key. When specifying the ``r`` key the data for an existing
+frame is edited. The same composition operation as above happens, but now the
+background canvas is the existing frame itself. ``r`` is a 1-based index, so
+``r=1`` is the root frame (base image data), ``r=2`` is the second frame and so
+on.
+
+Finally, while transferring frame data, the frame *gap* can also be specified
+using the ``z`` key. The gap is the number of milliseconds to wait before
+displaying the next frame when the animation is running. A value of ``z=0`` is
+ignored, ``z=positive number`` sets the gap to the specified number of
+milliseconds and ``z=negative number`` creates a *gapless* frame. Gapless
+frames are not displayed to the user since they are instantly skipped over,
+however they can be useful as the base data for subsequent frames. For example,
+for an animation where the background remains the same and a small object or two
+move.
+
+Controlling animations
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Clients can control animations by using the ``a=a`` key in the escape code sent
+to the terminal.
+
+The simplest is client driven animations, where the client transmits the frame
+data and then also instructs the terminal to make a particular frame the current
+frame.  To change the current frame, use the ``c`` key::
+
+    <ESC>_Ga=a,i=3,c=7<ESC>\
+
+This will make the seventh frame in the image with id ``3`` the current frame.
+
+However, client driven animations can be sub-optimal, since the latency between
+the client and terminal is unknown and variable especially over the network.
+Also they require the client to remain running for the lifetime of the
+animation, which is not desirable for cat like utilities.
+
+Terminal driven animations are achieved by the client specifying *gaps* (time
+in milliseconds) between frames and instructing the terminal to stop or start
+the animation.
+
+The animation state is controlled by the ``s`` key. ``s=1`` stops the
+animation. ``s=2`` runs the animation, but in *loading* mode, in this mode when
+reaching the last frame, instead of looping, the terminal will wait for the
+arrival of more frames. ``s=3`` runs the animation normally, after the last
+frame, the terminal loops back to the first frame. The number of loops can be
+controlled by the ``v`` key. ``v=0`` is ignored, ``v=1`` is loop infinitely,
+and any other positive number is loop ``number - 1`` times. Note that stopping
+the animation resets the loop counter.
+
+Finally, the *gap* for frames can be set using the ``z`` key. This can be
+specified either when the frame is created as part of the transmit escape code
+or separately using the animation control escape code. The *gap* is the time in
+milliseconds to wait before displaying the next frame in the animation.
+For example::
+
+    <ESC>_Ga=a,i=7,r=3,z=48<ESC>\
+
+This sets the gap for the third frame of the image with id ``7`` to ``48``
+milliseconds. Note that *gapless* frames are not displayed to the user since
+the next frame comes immediately, however they can be useful to store base data
+for subsequent frames, such as in an animation with an object moving against a
+static background.
+
+In particular, the first frame or *root frame* is created with the base image
+data and has no gap, so its gap must be set using this control code.
+
+Composing animation frames
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 0.22.0
+   Support for frame composition
+
+Clients can *compose* animation frames, this means that they can compose pixels
+in rectangular regions from one frame onto another frame. This allows for fast
+and low band-width modification of frames.
+
+To achieve this use the ``a=c`` key. The source frame is specified with
+``r=frame number`` and the destination frame as ``c=frame number``. The size of
+the rectangle is specified as ``w=width,h=height`` pixels. If unspecified, the
+full image width and height are used. The offset of the rectangle from the
+top-left corner for the source frame is specified by the ``x,y`` keys and the
+destination frame by the ``X,Y`` keys. The composition operation is specified
+by the ``C`` key with the default being to alpha blend the source rectangle
+onto the destination rectangle. With ``C=1`` it will be a simple replacement
+of pixels. For example::
+
+    <ESC>_Gi=1,r=7,c=9,w=23,h=27,X=4,Y=8,x=1,y=3<ESC>\
+
+Will compose a ``23x27`` rectangle located at ``(4, 8)`` in the ``7th frame``
+onto the rectangle located at ``(1, 3)`` in the ``9th frame``. These will be
+in the image with ``id=1``.
+
+If the frames or the image are not found the terminal emulator must
+respond with `ENOENT`. If the rectangles go out of bounds of the image
+the terminal must respond with `EINVAL`. If the source and destination frames are
+the same and the rectangles overlap, the terminal must respond with `EINVAL`.
+
+
+.. note::
+   In kitty, doing a composition will cause a frame to be *fully rendered*
+   potentially increasing its storage requirements, when the frame was previously
+   stored as a set of operations on other frames. If this happens and there
+   is not enough storage space, kitty will respond with ENOSPC.
+
 
 Image persistence and storage quotas
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+-----------------------------------------
 
 In order to avoid *Denial-of-Service* attacks, terminal emulators should have a
 maximum storage quota for image data. It should allow at least a few full
 screen images.  For example the quota in kitty is 320MB per buffer. When adding
 a new image, if the total size exceeds the quota, the terminal emulator should
-delete older images to make space for the new one.
+delete older images to make space for the new one. In kitty, for animations,
+the additional frame data is stored on disk and has a separate, larger quota of
+five times the base quota.
 
 
 Control data reference
@@ -423,7 +697,13 @@ take, and the default value they take when missing. All integers are 32-bit.
 Key      Value                 Default    Description
 =======  ====================  =========  =================
 ``a``    Single character.     ``t``      The overall action this graphics command is performing.
-         ``(t, T, q, p, d)``
+         ``(a, c, d, f, ``                ``t`` - transmit data, ``T`` - transmit data and display image,
+         ``p, q, t, T)``                  ``q`` - query terminal, ``p`` - put (display) previous transmitted image,
+                                          ``d`` - delete image, ``f`` - transmit data for animation frames,
+                                          ``a`` - control animation, ``c`` - compose animation frames
+
+``q``    ``0, 1, 2``           ``0``      Suppress responses from the terminal to this graphics command.
+
 **Keys for image transmission**
 -----------------------------------------------------------
 ``f``    Positive integer.     ``32``     The format in which the image data is sent.
@@ -436,26 +716,77 @@ Key      Value                 Default    Description
 ``O``    Positive integer.     ``0``      The offset from which to read data from a file.
 ``i``    Positive integer.
          ``(0 - 4294967295)``  ``0``      The image id
+``I``    Positive integer.
+         ``(0 - 4294967295)``  ``0``      The image number
+``p``    Positive integer.
+         ``(0 - 4294967295)``  ``0``      The placement id
 ``o``    Single character.     ``null``   The type of data compression.
          ``only z``
 ``m``    zero or one           ``0``      Whether there is more chunked data available.
+
 **Keys for image display**
 -----------------------------------------------------------
 ``x``    Positive integer      ``0``      The left edge (in pixels) of the image area to display
 ``y``    Positive integer      ``0``      The top edge (in pixels) of the image area to display
-``w``    Positive integer      ``0``      The width (in pixels) of the image area to display. By default, the entire width is used.
+``w``    Positive integer      ``0``      The width (in pixels) of the image area to display. By default, the entire width is used
 ``h``    Positive integer      ``0``      The height (in pixels) of the image area to display. By default, the entire height is used
 ``X``    Positive integer      ``0``      The x-offset within the first cell at which to start displaying the image
 ``Y``    Positive integer      ``0``      The y-offset within the first cell at which to start displaying the image
 ``c``    Positive integer      ``0``      The number of columns to display the image over
 ``r``    Positive integer      ``0``      The number of rows to display the image over
+``C``    Positive integer      ``0``      Cursor movement policy. ``0`` is the default, to move the cursor to after the image.
+                                          ``1`` is to not move the cursor at all when placing the image.
 ``z``    32-bit integer        ``0``      The *z-index* vertical stacking order of the image
+
+**Keys for animation frame loading**
+-----------------------------------------------------------
+``x``    Positive integer      ``0``      The left edge (in pixels) of where the frame data should be updated
+``y``    Positive integer      ``0``      The top edge (in pixels) of where the frame data should be updated
+``c``    Positive integer      ``0``      The 1-based frame number of the frame whose image data serves as the base data
+                                          when creating a new frame, by default the base data is black, fully transparent pixels
+``r``    Positive integer      ``0``      The 1-based frame number of the frame that is being edited. By default, a new frame is created
+``z``    32-bit integer        ``0``      The gap (in milliseconds) of this frame from the next one. A value of
+                                          zero is ignored. Negative values create a *gapless* frame. If not specified,
+                                          frames have a default gap of ``40ms``. The root frame defaults to zero gap.
+``X``    Positive integer      ``0``      The composition mode for blending pixels when creating a new frame or
+                                          editing a frame's data. The default is full alpha blending. ``1`` means a
+                                          simple overwrite.
+``Y``    Positive integer      ``0``      The background color for pixels not
+                                          specified in the frame data. Must be in 32-bit RGBA format
+
+**Keys for animation frame composition**
+-----------------------------------------------------------
+
+``c``    Positive integer      ``0``      The 1-based frame number of the frame whose image data serves as the overlaid data
+``r``    Positive integer      ``0``      The 1-based frame number of the frame that is being edited.
+``x``    Positive integer      ``0``      The left edge (in pixels) of the destination rectangle
+``y``    Positive integer      ``0``      The top edge (in pixels) of the destination rectangle
+``w``    Positive integer      ``0``      The width (in pixels) of the source and destination rectangles. By default, the entire width is used
+``h``    Positive integer      ``0``      The height (in pixels) of the source and destination rectangles. By default, the entire height is used
+``X``    Positive integer      ``0``      The left edge (in pixels) of the source rectangle
+``Y``    Positive integer      ``0``      The top edge (in pixels) of the source rectangle
+``C``    Positive integer      ``0``      The composition mode for blending
+                                          pixels. Default is full alpha blending. ``1`` means a simple overwrite.
+
+
+**Keys for animation control**
+-----------------------------------------------------------
+``s``    Positive integer      ``0``      ``1`` - stop animation, ``2`` - run animation, but wait for new frames, ``3`` - run animation
+``r``    Positive integer      ``0``      The 1-based frame number of the frame that is being affected
+``z``    32-bit integer        ``0``      The gap (in milliseconds) of this frame from the next one. A value of
+                                          zero is ignored. Negative values create a *gapless* frame.
+``c``    Positive integer      ``0``      The 1-based frame number of the frame that should be made the current frame
+``v``    Positive integer      ``0``      The number of loops to play. ``0`` is
+                                          ignored, ``1`` is play infinite and is the default and larger number
+                                          means play that number ``-1`` loops
+
+
 **Keys for deleting images**
 -----------------------------------------------------------
 ``d``    Single character.     ``a``      What to delete.
-         ``(a, A, c, C, i,
-         I, p, P, q, Q, x, X,
-         y, Y, z, Z)``.
+         ``(a, A, c, C, n, N,
+         i, I, p, P, q, Q, x,
+         X, y, Y, z, Z)``.
 =======  ====================  =========  =================
 
 

docs/index.rst

@@ -1,526 +1,66 @@
-:tocdepth: 2
-
-==========================================================
-kitty - the fast, featureful, GPU based terminal emulator
+kitty
 ==========================================================
 
-.. container:: major-features
+*The fast, feature-rich, GPU based terminal emulator*
 
-    * Offloads rendering to the GPU for :doc:`lower system load <performance>` and
-      buttery smooth scrolling.  Uses threaded rendering to minimize input latency.
+.. toctree::
+    :hidden:
 
-    * Supports all modern terminal features: :doc:`graphics (images)
-      <graphics-protocol>`, unicode, `true-color
-      <https://gist.github.com/XVilka/8346728>`_,
-      OpenType ligatures, mouse protocol, :doc:`hyperlinks <open_actions>`,
-      focus tracking, `bracketed paste <https://cirw.in/blog/bracketed-paste>`_
-      and several :doc:`new terminal protocol extensions
-      <protocol-extensions>`.
+    quickstart
+    overview
+    faq
+    support
+    performance
+    changelog
+    integrations
+    protocol-extensions
 
-    * Supports tiling multiple terminal windows side by side in different
-      :ref:`layouts <layouts>` without needing to use an extra program like tmux
 
-    * Can be :doc:`controlled from scripts or the shell prompt <remote-control>`,
-      even over SSH.
+.. tab:: Fast
 
-    * Has a framework for :ref:`kittens`, small terminal programs that can be used to
-      extend |kitty|'s functionality.  For example, they are used for
-      :doc:`Unicode input <kittens/unicode-input>`, :doc:`Hints <kittens/hints>` and
-      :doc:`Side-by-side diff <kittens/diff>`.
+   * Offloads rendering to the GPU for :doc:`lower system load <performance>`
+   * Uses threaded rendering for absolutely minimal latency
+   * Performance tradeoffs can be :ref:`tuned <conf-kitty-performance>`
 
-    * Supports :ref:`startup sessions <sessions>` which allow you to specify
-      the window/tab layout, working directories and programs to run on startup.
+.. tab:: Capable
 
-    * Cross-platform: |kitty| works on Linux and macOS, but because it uses only
-      OpenGL for rendering, it should be trivial to port to other Unix-like platforms.
+   * Graphics, with :doc:`images and animations <graphics-protocol>`
+   * Ligatures and emoji, with :opt:`per glyph font substitution <symbol_map>`
+   * :term:`Hyperlinks<hyperlinks>`, with :doc:`configurable actions <open_actions>`
 
-    * Allows you to open :ref:`the scrollback buffer <scrollback>` in a
-      separate window using arbitrary programs of your choice. This is useful for
-      browsing the history comfortably in a pager or editor.
+.. tab:: Scriptable
 
-    * Has :ref:`multiple copy/paste buffers <cpbuf>`, like vim.
+   * Control from :doc:`scripts or the shell <remote-control>`
+   * Extend with :ref:`kittens <kittens>` using the Python language
+   * Use :ref:`startup sessions <sessions>` to specify working environments
+
+.. tab:: Composable
+
+   * Programmble tabs, :ref:`splits <splits_layout>` and multiple :doc:`layouts <layouts>` to manage windows
+   * Browse the :ref:`entire history <scrollback>` or the output from the last command comfortably in pagers and editors
+   * Edit or download :doc:`remote files <kittens/remote_file>` in an existing SSH session
+
+.. tab:: Cross-platform
+
+   * Linux
+   * macOS
+   * Various BSDs
+
+.. tab:: Innovative
+
+   Pioneered various extensions to move the entire terminal ecosystem forward
+
+   * :doc:`graphics-protocol`
+   * :doc:`keyboard-protocol`
+   * Lots more in :doc:`protocol-extensions`
 
 
 .. figure:: screenshots/screenshot.png
     :alt: Screenshot, showing three programs in the 'Tall' layout
     :align: center
-    :scale: 100%
+    :width: 100%
 
     Screenshot, showing vim, tig and git running in |kitty| with the 'Tall' layout
 
 
-.. _quickstart:
-
-Quickstart
---------------
-
-Pre-built binaries of |kitty| are available for both macOS and Linux.
-See the :doc:`binary install instructions </binary>`. You can
-:doc:`build from source </build>`.
-
-You can also use your favorite package manager to install the |kitty| package.
-|kitty| packages are available for:
-`macOS with Homebrew (Cask) <https://formulae.brew.sh/cask/kitty>`_,
-`macOS and Linux with Nix <https://nixos.org/nixos/packages.html?channel=nixpkgs-unstable&query=kitty>`_,
-`Ubuntu <https://launchpad.net/ubuntu/+source/kitty>`_,
-`Debian <https://packages.debian.org/buster/kitty>`_,
-`openSUSE <https://build.opensuse.org/package/show/X11:terminals/kitty>`_,
-`Arch Linux <https://www.archlinux.org/packages/community/x86_64/kitty/>`_,
-`Gentoo <https://packages.gentoo.org/packages/x11-terms/kitty>`_,
-`Fedora <https://src.fedoraproject.org/rpms/kitty>`_,
-`Void Linux <https://github.com/void-linux/void-packages/blob/master/srcpkgs/kitty/template>`_,
-and `Solus <https://dev.getsol.us/source/kitty/>`_.
-
-See :doc:`Configuring kitty <conf>` for help on configuring |kitty| and
-:doc:`Invocation <invocation>` for the command line arguments |kitty| supports.
-
-
-.. contents::
-
-
-Design philosophy
--------------------
-
-|kitty| is designed for power keyboard users. To that end all its controls
-work with the keyboard (although it fully supports mouse interactions as
-well). Its configuration is a simple, human editable, single file for
-easy reproducibility (I like to store configuration in source control).
-
-The code in |kitty| is designed to be simple, modular and hackable. It is
-written in a mix of C (for performance sensitive parts) and Python (for
-easy hackability of the UI). It does not depend on any large and complex
-UI toolkit, using only OpenGL for rendering everything.
-
-Finally, |kitty| is designed from the ground up to support all modern
-terminal features, such as unicode, true color, bold/italic fonts, text
-formatting, etc. It even extends existing text formatting escape codes,
-to add support for features not available elsewhere, such as colored and
-styled (curly) underlines. One of the design goals of |kitty| is to be
-easily extensible so that new features can be added in the future with
-relatively little effort.
-
-Tabs and Windows
--------------------
-
-|kitty| is capable of running multiple programs organized into tabs and
-windows. The top level of organization is the *Tab*. Each tab consists
-of one or more *windows*. The windows can be arranged in multiple
-different layouts, like windows are organized in a tiling window
-manager. The keyboard controls (which are all customizable) for tabs and
-windows are:
-
-Scrolling
-~~~~~~~~~~~~~~
-
-========================    =======================
-Action                      Shortcut
-========================    =======================
-Scroll line up              :sc:`scroll_line_up` (also :kbd:`⌥+⌘+⇞` and :kbd:`⌘+↑` on macOS)
-Scroll line down            :sc:`scroll_line_down` (also :kbd:`⌥+⌘+⇟` and :kbd:`⌘+↓` on macOS)
-Scroll page up              :sc:`scroll_page_up` (also :kbd:`⌘+⇞` on macOS)
-Scroll page down            :sc:`scroll_page_down` (also :kbd:`⌘+⇟` on macOS)
-Scroll to top               :sc:`scroll_home` (also :kbd:`⌘+↖` on macOS)
-Scroll to bottom            :sc:`scroll_end` (also :kbd:`⌘+↘` on macOS)
-========================    =======================
-
-Tabs
-~~~~~~~~~~~
-
-========================    =======================
-Action                      Shortcut
-========================    =======================
-New tab                     :sc:`new_tab` (also :kbd:`⌘+t` on macOS)
-Close tab                   :sc:`close_tab` (also :kbd:`⌘+w` on macOS)
-Next tab                    :sc:`next_tab` (also :kbd:`^+⇥` and :kbd:`⇧+⌘+]` on macOS)
-Previous tab                :sc:`previous_tab` (also :kbd:`⇧+^+⇥` and :kbd:`⇧+⌘+[` on macOS)
-Next layout                 :sc:`next_layout`
-Move tab forward            :sc:`move_tab_forward`
-Move tab backward           :sc:`move_tab_backward`
-Set tab title               :sc:`set_tab_title` (also :kbd:`⇧+⌘+i` on macOS)
-========================    =======================
-
-
-Windows
-~~~~~~~~~~~~~~~~~~
-
-========================    =======================
-Action                      Shortcut
-========================    =======================
-New window                  :sc:`new_window` (also :kbd:`⌘+↩` on macOS)
-New OS window               :sc:`new_os_window` (also :kbd:`⌘+n` on macOS)
-Close window                :sc:`close_window` (also :kbd:`⇧+⌘+d` on macOS)
-Next window                 :sc:`next_window`
-Previous window             :sc:`previous_window`
-Move window forward         :sc:`move_window_forward`
-Move window backward        :sc:`move_window_backward`
-Move window to top          :sc:`move_window_to_top`
-Focus specific window       :sc:`first_window`, :sc:`second_window` ... :sc:`tenth_window`
-                            (also :kbd:`⌘+1`, :kbd:`⌘+2` ... :kbd:`⌘+9` on macOS)
-                            (clockwise from the top-left)
-========================    =======================
-
-Additionally, you can define shortcuts in :file:`kitty.conf` to focus neighboring
-windows and move windows around (similar to window movement in vim)::
-
-   map ctrl+left neighboring_window left
-   map shift+left move_window right
-   map ctrl+down neighboring_window down
-   map shift+down move_window up
-   ...
-
-You can also define a shortcut to switch to the previously active window::
-
-   map ctrl+p nth_window -1
-
-``nth_window`` will focus the nth window for positive numbers and the
-previously active windows for negative numbers.
-
-.. _detach_window:
-
-You can define shortcuts to detach the current window and
-move it to another tab or another OS window::
-
-    # moves the window into a new OS window
-    map ctrl+f2 detach_window
-    # moves the window into a new Tab
-    map ctrl+f3 detach_window new-tab
-    # asks which tab to move the window into
-    map ctrl+f4 detach_window ask
-
-Similarly, you can detach the current tab, with::
-
-    # moves the tab into a new OS window
-    map ctrl+f2 detach_tab
-    # asks which OS Window to move the tab into
-    map ctrl+f4 detach_tab ask
-
-Finally, you can define a shortcut to close all windows in a tab other than
-the currently active window::
-
-    map f9 close_other_windows_in_tab
-
-
-Other keyboard shortcuts
-----------------------------------
-
-==================================  =======================
-Action                              Shortcut
-==================================  =======================
-Copy to clipboard                   :sc:`copy_to_clipboard` (also :kbd:`⌘+c` on macOS)
-Paste from clipboard                :sc:`paste_from_clipboard` (also :kbd:`⌘+v` on macOS)
-Paste from selection                :sc:`paste_from_selection`
-Increase font size                  :sc:`increase_font_size` (also :kbd:`⌘++` on macOS)
-Decrease font size                  :sc:`decrease_font_size` (also :kbd:`⌘+-` on macOS)
-Restore font size                   :sc:`reset_font_size` (also :kbd:`⌘+0` on macOS)
-Toggle fullscreen                   :sc:`toggle_fullscreen` (also :kbd:`^+⌘+f` on macOS)
-Toggle maximized                    :sc:`toggle_maximized`
-Input unicode character             :sc:`input_unicode_character`
-Click URL using the keyboard        :sc:`open_url`
-Reset the terminal                  :sc:`reset_terminal`
-Pass current selection to program   :sc:`pass_selection_to_program`
-Edit |kitty| config file            :sc:`edit_config_file`
-Open a |kitty| shell                :sc:`kitty_shell`
-Increase background opacity         :sc:`increase_background_opacity`
-Decrease background opacity         :sc:`decrease_background_opacity`
-Full background opacity             :sc:`full_background_opacity`
-Reset background opacity            :sc:`reset_background_opacity`
-==================================  =======================
-
-
-.. _layouts:
-
-Layouts
-----------
-
-A layout is an arrangement of multiple kitty *windows* inside a top-level OS window. You can create a new window
-using the :sc:`new_window` key combination.
-
-Currently, there are six layouts available:
-
-* **Fat** -- One (or optionally more) windows are shown full width on the top, the rest of the windows are shown side-by-side on the bottom
-* **Grid** -- All windows are shown in a grid
-* **Horizontal** -- All windows are shown side-by-side
-* **Splits** -- Windows arranged in arbitrary patterns created using horizontal and vertical splits
-* **Stack** -- Only a single maximized window is shown at a time
-* **Tall** -- One (or optionally more) windows are shown full height on the left, the rest of the windows are shown one below the other on the right
-* **Vertical** -- All windows are shown one below the other
-
-By default, all layouts are enabled and you can switch between layouts using
-the :sc:`next_layout` key combination. You can also create shortcuts to select
-particular layouts, and choose which layouts you want to enable/disable, see
-:ref:`conf-kitty-shortcuts.layout` for examples. The first layout listed in
-:opt:`enabled_layouts` becomes the default layout.
-
-For more details on the layouts and how to use them see :doc:`layouts`.
-
-.. _kittens:
-
-Kittens
-------------------
-
-|kitty| has a framework for easily creating terminal programs that make use of
-its advanced features. These programs are called kittens. They are used both
-to add features to |kitty| itself and to create useful standalone programs.
-Some prominent kittens:
-
-:doc:`icat <kittens/icat>`
-    Display images in the terminal
-
-
-:doc:`diff <kittens/diff>`
-    A fast, side-by-side diff for the terminal with syntax highlighting and
-    images
-
-
-:doc:`Unicode Input <kittens/unicode-input>`
-    Easily input arbitrary unicode characters in |kitty| by name or hex code.
-
-
-:doc:`Hints <kittens/hints>`
-    Select and open/paste/insert arbitrary text snippets such as URLs,
-    filenames, words, lines, etc from the terminal screen.
-
-
-:doc:`Panel <kittens/panel>`
-    Draw a GPU accelerated dock panel on your desktop showing the output
-    from an arbitrary terminal program.
-
-:doc:`Clipboard <kittens/clipboard>`
-    Copy/paste to the clipboard from shell scripts, even over SSH.
-
-You can also :doc:`Learn to create your own kittens <kittens/custom>`.
-
-
-Configuring kitty
--------------------
-
-|kitty| is highly configurable, everything from keyboard shortcuts to
-painting frames-per-second. For details and a sample :file:`kitty.conf`,
-see the :doc:`configuration docs <conf>`.
-
-
-Remote control
-------------------
-
-|kitty| has a very powerful system that allows you to control it from the
-:doc:`shell prompt, even over SSH <remote-control>`. You can change colors,
-fonts, open new windows, tabs, set their titles, change window layout, get text
-from one window and send text to another, etc, etc. The possibilities are
-endless. See the :doc:`tutorial <remote-control>` to get started.
-
-.. _sessions:
-
-Startup Sessions
-------------------
-
-You can control the tabs, window layout, working directory, startup programs,
-etc. by creating a "session" file and using the :option:`kitty --session`
-command line flag or the :opt:`startup_session` option in :file:`kitty.conf`.
-For example:
-
-.. code-block:: session
-
-    # Set the window layout for the current tab
-    layout tall
-    # Set the working directory for windows in the current tab
-    cd ~
-    # Create a window and run the specified command in it
-    launch zsh
-    # Create a window with some environment variables set and run
-    # vim in it
-    launch env FOO=BAR vim
-    # Set the title for the next window
-    title Chat with x
-    launch irssi --profile x
-
-    # Create a new tab (the part after new_tab is the optional tab
-    # name which will be displayed in the tab bar, if omitted, the
-    # title of the active window will be used instead)
-    new_tab my tab
-    cd ~/somewhere
-    # Set the layouts allowed in this tab
-    enabled_layouts tall, stack
-    # Set the current layout
-    layout stack
-    launch zsh
-
-    # Create a new OS window
-    new_os_window
-    # set new window size to 80x25 cells
-    os_window_size 80c 25c
-    # set the --class for the new OS window
-    os_window_class mywindow
-    launch sh
-    # Make the current window the active (focused) window
-    focus
-    launch emacs
-
-    # Add a watcher that will be called with various events that occur
-    # on all subsequent windows. See the documentation of the launch command
-    # for details on watchers.
-    watcher /some/python/file.py
-    launch mpd
-    launch irssi
-    # Remove the watcher for further windows
-    watcher clear
-
-
-Mouse features
--------------------
-
-* You can hold down :kbd:`ctrl+shift` and click on a URL to open it in a browser.
-* You can double click to select a word and then drag to select more words.
-* You can triple click to select a line and then drag to select more lines.
-* You can right click to extend a previous selection.
-* You can hold down :kbd:`ctrl+alt` and drag with the mouse to select in
-  columns (see also :opt:`rectangle_select_modifiers`).
-* Selecting text automatically copies it to the primary clipboard (on
-  platforms with a primary clipboard).
-* You can select text with kitty even when a terminal program has grabbed
-  the mouse by holding down the :kbd:`shift` key (see also
-  :opt:`terminal_select_modifiers`).
-
-
-Font control
------------------
-
-|kitty| has extremely flexible and powerful font selection features. You can
-specify individual families for the regular, bold, italic and bold+italic
-fonts. You can even specify specific font families for specific ranges of
-unicode characters. This allows precise control over text rendering. It can
-come in handy for applications like powerline, without the need to use patched
-fonts. See the various font related configuration directives in
-:ref:`conf-kitty-fonts`.
-
-
-.. _scrollback:
-
-The scrollback buffer
------------------------
-
-|kitty| supports scrolling back to view history, just like most terminals. You
-can use either keyboard shortcuts or the mouse scroll wheel to do so.  However,
-|kitty| has an extra, neat feature. Sometimes you need to explore the
-scrollback buffer in more detail, maybe search for some text or refer to it
-side-by-side while typing in a follow-up command. |kitty| allows you to do this
-by pressing the :sc:`show_scrollback` key-combination, which will open the
-scrollback buffer in your favorite pager program (which is ``less`` by default).
-Colors and text formatting are preserved. You can explore the scrollback buffer
-comfortably within the pager.
-
-Additionally, you can pipe the contents of the scrollback buffer to an
-arbitrary, command running in a new window, tab or overlay, for example::
-
-   map f1 launch --stdin-source=@screen_scrollback --stdin-add-formatting less +G -R
-
-Would open the scrollback buffer in a new window when you press the :kbd:`F1`
-key. See :sc:`show_scrollback` for details.
-
-If you wish to store very large amounts of scrollback to view using the piping or
-:sc:`show_scrollback` features, you can use the :opt:`scrollback_pager_history_size`
-option.
-
-.. _cpbuf:
-
-Multiple copy/paste buffers
------------------------------
-
-In addition to being able to copy/paste from the system clipboard, in |kitty| you
-can also setup an arbitrary number of copy paste buffers. To do so, simply add
-something like the following to your :file:`kitty.conf`::
-
-   map f1 copy_to_buffer a
-   map f2 paste_from_buffer a
-
-This will allow you to press :kbd:`F1` to copy the current selection to an
-internal buffer named ``a`` and :kbd:`F2` to paste from that buffer. The buffer
-names are arbitrary strings, so you can define as many such buffers as you
-need.
-
-Marks
--------------
-
-kitty has the ability to mark text on the screen based on regular expressions.
-This can be useful to highlight words or phrases when browsing output from long
-running programs or similar. To learn how this feature works, see :doc:`marks`.
-
-
-Frequently Asked Questions
----------------------------------
-
-The list of Frequently Asked Questions (*FAQ*) is :doc:`available here <faq>`.
-
-.. _completion:
-
-
-Cool integrations for kitty with other CLI tools
---------------------------------------------------
-
-kitty provides extremely powerful interfaces such as :doc:`remote-control` and
-:doc:`kittens/custom` and :doc:`kittens/icat`
-that allow it to be integrated with other tools seamlessly. For a list of such
-user created integrations, see: :doc:`integrations`.
-
-Completion for kitty
----------------------------------
-
-|kitty| comes with completion for the ``kitty`` command for popular shells.
-
-
-bash
-~~~~~~~~
-
-Add the following to your :file:`~/.bashrc`
-
-.. code-block:: sh
-
-   source <(kitty + complete setup bash)
-
-Older versions of bash (for example, v3.2) do not support
-process substitution with the source command, in which
-case you can try an alternative:
-
-.. code-block:: sh
-
-    source /dev/stdin <<<"$(kitty + complete setup bash)"
-
-
-zsh
-~~~~~~~~~
-
-Add the following to your :file:`~/.zshrc`
-
-.. code-block:: sh
-
-    autoload -Uz compinit
-    compinit
-    # Completion for kitty
-    kitty + complete setup zsh | source /dev/stdin
-
-The important thing above is to make sure the call to |kitty| to load the zsh
-completions happens after the call to :file:`compinit`.
-
-
-fish
-~~~~~~~~
-
-For versions of fish earlier than 3.0.0, add the following to your
-:file:`~/.config/fish/config.fish`. Later versions source completions by default.
-
-.. code-block:: sh
-
-   kitty + complete setup fish | source
-
-
-Changelog
-------------------
-
-See :doc:`changelog`.
-
-.. toctree::
-    :hidden:
-    :glob:
-
-    *
-    kittens/*
-    generated/rc
+To get started see :doc:`quickstart`.

docs/integrations.rst

@@ -1,3 +1,5 @@
+:tocdepth: 2
+
 Integrations with other tools
 ================================
 
@@ -12,107 +14,245 @@ Image and document viewers
 Powered by kitty's :doc:`graphics-protocol` there exist many tools for viewing
 images and other types of documents directly in your terminal, even over SSH.
 
+.. _tool_termpdf:
+
 `termpdf.py <https://github.com/dsanson/termpdf.py>`_
-    a terminal PDF/DJVU/CBR viewer
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A terminal PDF/DJVU/CBR viewer
+
+.. _tool_mdcat:
 
 `mdcat <https://github.com/lunaryorn/mdcat>`_
-    Display markdown files nicely formatted with images in the terminal
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Display markdown files nicely formatted with images in the terminal
+
+.. _tool_ranger:
 
 `ranger <https://github.com/ranger/ranger>`_
-    a terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+
+.. _tool_nnn:
 
 `nnn <https://github.com/jarun/nnn/>`_
-    another terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Another terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+
+.. _tool_hunter:
 
 `hunter <https://github.com/rabite0/hunter>`_
-    another terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Another terminal file manager, with previews of file contents powered by kitty's graphics protocol.
+
+.. _tool_koneko:
 
 `koneko <https://github.com/twenty5151/koneko>`_
-    browse images from the pixiv artist community directly in kitty
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Browse images from the pixiv artist community directly in kitty.
+
+.. _tool_viu:
+
+`viu <https://github.com/atanunq/viu>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+View images in the terminal, similar to kitty's icat.
+
+.. _tool_nb:
+
+
+`nb <https://github.com/xwmx/nb>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+command line and local web note-taking, bookmarking, archiving, and
+knowledge base application that uses kitty's graphics protocol for images.
+
+.. _tool_w3m:
+
+`w3m <https://github.com/tats/w3m>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A text mode WWW browser that supports kitty's graphics protocol to display
+images.
+
+.. _tool_timg:
+
+`timg <https://github.com/hzeller/timg>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A terminal image and video viewer, that displays static and animated
+images or plays videos. Fast multi-threaded loading, JPEG exif rotation,
+grid view and connecting to the webcam make it a versatile terminal utility.
 
 
 System and data visualisation tools
 ---------------------------------------
 
+.. _tool_neofetch:
+
 `neofetch <https://github.com/dylanaraps/neofetch>`_
-    A command line system information tool that shows images using kitty's graphics protocol
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A command line system information tool that shows images using kitty's graphics protocol
+
+.. _tool_matplotlib:
 
 `matplotlib <https://github.com/jktr/matplotlib-backend-kitty>`_
-    show matplotlib plots directly in kitty
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Show matplotlib plots directly in kitty
+
+.. _tool_KittyTerminalImage:
 
 `KittyTerminalImages.jl <https://github.com/simonschoelly/KittyTerminalImages.jl>`_
-    show images from Julia directly in kitty
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Show images from Julia directly in kitty
+
+.. _tool_euporie:
+
+`euporie <https://github.com/joouha/euporie>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A text-based user interface for running and editing Jupyter notebooks,
+powered by kitty's graphics protocol for displaying plots
+
+.. _tool_gnuplot:
 
 `gnuplot <http://www.gnuplot.info/>`_
-    a graphing and data visualization tool that can be made to display its
-    output in kitty with the following bash snippet::
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-        function iplot {
-            cat <<EOF | gnuplot
-            set terminal pngcairo enhanced font 'Fira Sans,10'
-            set autoscale
-            set samples 1000
-            set output '|kitty +kitten icat --stdin yes'
-            set object 1 rectangle from screen 0,0 to screen 1,1 fillcolor rgb"#fdf6e3" behind
-            plot $@
-            set output '/dev/null'
-            EOF
-        }
+A graphing and data visualization tool that can be made to display its
+output in kitty with the following bash snippet:
 
-   Add this to bashrc and then to plot a function, simply do::
+.. code-block:: sh
 
-        iplot 'sin(x*3)*exp(x*.2)'
+    function iplot {
+        cat <<EOF | gnuplot
+        set terminal pngcairo enhanced font 'Fira Sans,10'
+        set autoscale
+        set samples 1000
+        set output '|kitty +kitten icat --stdin yes'
+        set object 1 rectangle from screen 0,0 to screen 1,1 fillcolor rgb"#fdf6e3" behind
+        plot $@
+        set output '/dev/null'
+        EOF
+    }
+
+Add this to bashrc and then to plot a function, simply do:
+
+.. code-block:: sh
+
+    iplot 'sin(x*3)*exp(x*.2)'
+
+.. tool_onefetch:
+
+`onefetch <https://github.com/o2sh/onefetch>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A tool to fetch information about your git repositories
+
+.. tool_patat:
+
+`patat <https://github.com/jaspervdj/patat>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Terminal based presentations using pandoc and kitty's image protocol for
+images
+
+.. tool_wttr:
+
+`wttr.in <https://github.com/chubin/wttr.in>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A tool to display weather information in your terminal with curl
+
+.. tool_wl_clipboard:
+
+`wl-clipboard-manager <https://github.com/maximbaz/wl-clipboard-manager>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+View and manage the system clipboard under Wayland in your kitty terminal
+
+.. tool_dmenu_term:
+
+`dmenu-term <https://github.com/maximbaz/dmenu-term>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Run applications on your system with fuzzy find inside a kitty window
 
 
 Editor integration
 -----------------------
 
-kitty can be integrated into many different terminal editors to add features
+|kitty| can be integrated into many different terminal editors to add features
 such a split windows, previews, REPLs etc.
 
+.. tool_kakoune:
 
 `kakoune <https://kakoune.org/>`_
-    integrates with kitty to use native kitty windows for its windows/panels and REPLs.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+integrates with kitty to use native kitty windows for its windows/panels and REPLs.
+
+.. tool_vim_slime:
 
 `vim-slime <https://github.com/jpalardy/vim-slime#kitty>`_
-    uses kitty remote control for a Lisp REPL.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+uses kitty remote control for a Lisp REPL.
+
+.. tool_vim_kitty_navigator:
 
 `vim-kitty-navigator <https://github.com/knubie/vim-kitty-navigator>`_
-    allows you to navigate seamlessly between vim and kitty splits using a consistent set of hotkeys.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+allows you to navigate seamlessly between vim and kitty splits using a consistent set of hotkeys.
+
+.. tool_vim_test:
 
 `vim-test <https://github.com/vim-test/vim-test>`_
-    allows easily running tests in a terminal window
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Allows easily running tests in a terminal window
+
+.. tool_hologram:
+
+`hologram.nvim <https://github.com/edluffy/hologram.nvim>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Terminal image viewer for nvim
 
 
 Scrollback manipulation
 -------------------------
 
+.. tool_kitty_search:
+
 `kitty-search <https://github.com/trygveaa/kitty-kitten-search>`_
-    Live incremental search of the scrollback buffer.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Live incremental search of the scrollback buffer.
+
+.. tool_kitty_grab:
 
 `kitty-grab <https://github.com/yurikhan/kitty_grab>`_
-    keyboard based text selection for the kitty scrollback buffer.
-
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Keyboard based text selection for the kitty scrollback buffer.
 
 
 Miscellaneous
 ------------------
 
+.. tool_kitty_smart_tab:
+
 `kitty-smart-tab <https://github.com/yurikhan/kitty-smart-tab>`_
-    use keys to either control tabs or pass them onto running applications if
-    no tabs are present
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+use keys to either control tabs or pass them onto running applications if
+no tabs are present
+
+.. tool_kitty_smart_scroll:
 
 `kitty-smart-scroll <https://github.com/yurikhan/kitty-smart-scroll>`_
-    use keys to either scroll or pass them onto running applications if
-    no scrollback buffer is present
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+use keys to either scroll or pass them onto running applications if
+no scrollback buffer is present
 
-`reload keybindings <https://github.com/kovidgoyal/kitty/issues/1292#issuecomment-582388769>`_
-    reload key bindings from :file:`kitty.conf` without needing to restart
-    kitty
+.. tool_kitti3:
 
 `kitti3 <https://github.com/LandingEllipse/kitti3>`_
-    allow using kitty as a drop-down terminal under the i3 window manager
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+allow using kitty as a drop-down terminal under the i3 window manager
+
+.. tool_weechat_hints:
 
 `weechat-hints <https://github.com/GermainZ/kitty-weechat-hints>`_
-    URL hints kitten for WeeChat that works without having to use WeeChat's
-    raw-mode.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+URL hints kitten for WeeChat that works without having to use WeeChat's
+raw-mode.
+
+.. tool_glkitty:
+
+`glkitty <https://github.com/michaeljclark/glkitty>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+C library to draw OpenGL shaders in the terminal with a glgears demo

docs/invocation.rst

@@ -1,6 +1,15 @@
+:orphan:
+
 The kitty command line interface
 ====================================
 
 .. program:: kitty
 
 .. include:: generated/cli-kitty.rst
+
+.. include:: basic.rst
+
+See also
+-----------
+
+See kitty.conf(5)

docs/key-encoding.rst

@@ -1,128 +0,0 @@
-Key encoding for extended keyboard protocol
-===============================================
-
-See :ref:`extended-key-protocol` for more information and `this table in JSON
-format <https://github.com/kovidgoyal/kitty/blob/master/key_encoding.json>`_.
-
-=====================   ======================
-Name                    Encoded representation
-0                       ``G``
-1                       ``H``
-2                       ``I``
-3                       ``J``
-4                       ``K``
-5                       ``L``
-6                       ``M``
-7                       ``N``
-8                       ``O``
-9                       ``P``
-A                       ``S``
-APOSTROPHE              ``B``
-B                       ``T``
-BACKSLASH               ``t``
-BACKSPACE               ``1``
-C                       ``U``
-CAPS LOCK               ``:``
-COMMA                   ``C``
-D                       ``V``
-DELETE                  ``3``
-DOWN                    ``6``
-E                       ``W``
-END                     ``-``
-ENTER                   ``z``
-EQUAL                   ``R``
-ESCAPE                  ``y``
-F                       ``X``
-F1                      ``/``
-F10                     ``]``
-F11                     ``{``
-F12                     ``}``
-F13                     ``@``
-F14                     ``%``
-F15                     ``$``
-F16                     ``#``
-F17                     ``BA``
-F18                     ``BB``
-F19                     ``BC``
-F2                      ``*``
-F20                     ``BD``
-F21                     ``BE``
-F22                     ``BF``
-F23                     ``BG``
-F24                     ``BH``
-F25                     ``BI``
-F3                      ``?``
-F4                      ``&``
-F5                      ``<``
-F6                      ``>``
-F7                      ``(``
-F8                      ``)``
-F9                      ``[``
-G                       ``Y``
-GRAVE ACCENT            ``v``
-H                       ``Z``
-HOME                    ``.``
-I                       ``a``
-INSERT                  ``2``
-J                       ``b``
-K                       ``c``
-KP 0                    ``BJ``
-KP 1                    ``BK``
-KP 2                    ``BL``
-KP 3                    ``BM``
-KP 4                    ``BN``
-KP 5                    ``BO``
-KP 6                    ``BP``
-KP 7                    ``BQ``
-KP 8                    ``BR``
-KP 9                    ``BS``
-KP ADD                  ``BX``
-KP DECIMAL              ``BT``
-KP DIVIDE               ``BU``
-KP ENTER                ``BY``
-KP EQUAL                ``BZ``
-KP MULTIPLY             ``BV``
-KP SUBTRACT             ``BW``
-L                       ``d``
-LEFT                    ``5``
-LEFT ALT                ``Bc``
-LEFT BRACKET            ``s``
-LEFT CONTROL            ``Bb``
-LEFT SHIFT              ``Ba``
-LEFT SUPER              ``Bd``
-M                       ``e``
-MINUS                   ``D``
-N                       ``f``
-NUM LOCK                ``=``
-O                       ``g``
-P                       ``h``
-PAGE DOWN               ``9``
-PAGE UP                 ``8``
-PAUSE                   ``!``
-PERIOD                  ``E``
-PRINT SCREEN            ``^``
-Q                       ``i``
-R                       ``j``
-RIGHT                   ``4``
-RIGHT ALT               ``Bg``
-RIGHT BRACKET           ``u``
-RIGHT CONTROL           ``Bf``
-RIGHT SHIFT             ``Be``
-RIGHT SUPER             ``Bh``
-S                       ``k``
-SCROLL LOCK             ``+``
-SEMICOLON               ``Q``
-SLASH                   ``F``
-SPACE                   ``A``
-T                       ``l``
-TAB                     ``0``
-U                       ``m``
-UP                      ``7``
-V                       ``n``
-W                       ``o``
-WORLD 1                 ``w``
-WORLD 2                 ``x``
-X                       ``p``
-Y                       ``q``
-Z                       ``r``
-=====================   ======================

docs/keyboard-protocol.rst

@@ -0,0 +1,665 @@
+Comprehensive keyboard handling in terminals
+==============================================
+
+There are various problems with the current state of keyboard handling in
+terminals. They include:
+
+* No way to use modifiers other than ``ctrl`` and ``alt``
+
+* No way to reliably use multiple modifier keys, other than, ``shift+alt`` and
+  ``ctrl+alt``.
+
+* Many of the existing escape codes used to encode these events are ambiguous
+  with different key presses mapping to the same escape code.
+
+* No way to handle different types of keyboard events, such as press, release or repeat
+
+* No reliable way to distinguish single ``Esc`` key presses from the start of a
+  escape sequence. Currently, client programs use fragile timing related hacks
+  for this, leading to bugs, for example:
+  `neovim #2035 <https://github.com/neovim/neovim/issues/2035>`_.
+
+To solve these issues and others, kitty has created a new keyboard protocol,
+that is backward compatible but allows applications to opt-in to support more
+advanced usages. The protocol is based on initial work in `fixterms
+<http://www.leonerd.org.uk/hacks/fixterms/>`_, however, it corrects various
+issues in that proposal, listed at the :ref:`bottom of this document
+<fixterms_bugs>`. For public discussion of this spec, see :iss:`3248`.
+
+You can see this protocol with all enhancements in action by running::
+
+    kitty +kitten show_key -m kitty
+
+inside the kitty terminal to report key events.
+
+.. versionadded:: 0.20.0
+
+Quickstart
+---------------
+
+If you are an application or library developer just interested in using this
+protocol to make keyboard handling simpler and more robust in your application,
+without too many changes, do the following:
+
+#. Emit the escape code ``CSI > 1 u`` at application startup if using the main
+   screen or when entering alternate screen mode, if using the alternate
+   screen.
+#. All key events will now be sent in only a few forms to your application,
+   that are easy to parse unambiguously.
+#. Emit the escape sequence ``CSI < u`` at application exit if using the main
+   screen or just before leaving alternate screen mode if using the alternate screen,
+   to restore the previously used keyboard mode.
+
+Key events will all be delivered to your application either as plain UTF-8
+text, or using the following escape codes, for those keys that do not produce
+text (``CSI`` is the bytes ``0x1b 0x5b``)::
+
+    CSI number ; modifiers [u~]
+    CSI 1; modifiers [ABCDEFHPQRS]
+    0x0d - for the Enter key
+    0x7f or 0x08 - for Backspace
+    0x09 - for Tab
+
+The ``number`` in the first form above will be either the Unicode codepoint for a
+key, such as ``97`` for the :kbd:`a` key, or one of the numbers from the
+:ref:`functional` table below. The ``modifiers`` optional parameter encodes any
+modifiers pressed for the key event. The encoding is described in the
+:ref:`modifiers` section.
+
+The second form is used for a few functional keys, such as the :kbd:`Home, End,
+Arrow keys and F1-F4`, they are enumerated in the :ref:`functional` table below.
+Note that if no modifiers are present the parameters are omitted entirely
+giving an escape code of the form ``CSI [ABCDEFHPQRS]``.
+
+If you want support for more advanced features such as repeat and release
+events, alternate keys for shortcut matching et cetera, these can be turned on
+using :ref:`progressive_enhancement` as documented in the rest of this
+specification.
+
+An overview
+------------------
+
+Key events are divided into two types, those that produce text and those that
+do not. When a key event produces text, the text is sent directly as UTF-8
+encoded bytes. This is safe as UTF-8 contains no C0 control codes.
+When the key event does not have text, the key event is encoded as an escape code. In
+legacy compatibility mode (the default) this uses legacy escape codes, so old terminal
+applications continue to work. Key events that could not be represented in
+legacy mode are encoded using a ``CSI u`` escape code, that most terminal
+programs should just ignore. For more advanced features, such as release/repeat
+reporting etc., applications can tell the terminal they want this information by
+sending an escape code to :ref:`progressively enhance <progressive_enhancement>` the data reported for
+key events.
+
+The central escape code used to encode key events is::
+
+    CSI unicode-key-code:alternate-key-codes ; modifiers:event-type ; text-as-codepoints u
+
+Spaces in the above definition are present for clarity and should be ignored.
+``CSI`` is the bytes ``0x1b 0x5b``. All parameters are decimal numbers. Fields
+are separated by the semi-colon and sub-fields by the colon. Only the
+``unicode-key-code`` field is mandatory, everything else is optional. The
+escape code is terminated by the ``u`` character (the byte ``0x75``).
+
+
+.. _key_codes:
+
+Key codes
+~~~~~~~~~~~~~~
+
+The ``unicode-key-code`` above is the Unicode codepoint representing the key, as a
+decimal number. For example, the :kbd:`A` key is represented as ``97`` which is
+the unicode code for lowercase ``a``. Note that the codepoint used is *always*
+the lower-case (or more technically, un-shifted) version of the key. If the
+user presses, for example, :kbd:`ctrl+shift+a` the escape code would be ``CSI
+97;modifiers u``. It *must not* be ``CSI 65; modifiers u``.
+
+If *alternate key reporting* is requested by the program running in the
+terminal, the terminal can send two additional Unicode codepoints, the
+*shifted key* and *base layout key*, separated by colons.
+The shifted key is simply the upper-case version of ``unicode-codepoint``, or
+more technically, the shifted version. So `a` becomes `A` and so on, based on
+the current keyboard layout. This is needed to be able to match against a
+shortcut such as :kbd:`ctrl+plus` which depending on the type of keyboard could
+be either :kbd:`ctrl+shift+equal` or :kbd:`ctrl+plus`. Note that the shifted
+key must be present only if shift is also present in the modifiers.
+
+The *base layout key* is the key corresponding to the physical key in the
+standard PC-101 key layout. So for example, if the user is using a Cyrillic
+keyboard with a Cyrillic keyboard layout pressing the :kbd:`ctrl+С` key will
+be :kbd:`ctrl+c` in the standard layout. So the terminal should send the *base
+layout key* as ``99`` corresponding to the ``c`` key.
+
+If only one alternate key is present, it is the *shifted key* if the terminal
+wants to send only a base layout key but no shifted key, it must use an empty
+sub-field for the shifted key, like this::
+
+  CSI unicode-key-code::base-layout-key
+
+
+.. _modifiers:
+
+Modifiers
+~~~~~~~~~~~~~~
+
+This protocol supports six modifier keys, :kbd:`shift, alt, ctrl, super, hyper
+and meta` as well as :kbd:`num_lock and caps_lock`. Here :kbd:`super` is either
+the *Windows/Linux* key or the *Cmd* key on mac keyboards. :kbd:`hyper` and
+:kbd:`meta` are typically present only on X11 based systems with special XKB
+rules. Modifiers are encoded as a bit field with::
+
+    shift     0b1         (1)
+    alt       0b10        (2)
+    ctrl      0b100       (4)
+    super     0b1000      (8)
+    hyper     0b10000     (16)
+    meta      0b100000    (32)
+    caps_lock 0b1000000   (64)
+    num_lock  0b10000000  (128)
+
+In the escape code, the modifier value is encoded as a decimal number which is
+``1 + actual modifiers``. So to represent :kbd:`shift` only, the value would be ``1 +
+1 = 2``, to represent :kbd:`ctrl+shift` the value would be ``1 + 0b101 = 6``
+and so on. If the modifier field is not present in the escape code, its default
+value is ``1`` which means no modifiers.
+
+
+.. _event_types:
+
+Event types
+~~~~~~~~~~~~~~~~
+
+There are three key event types: ``press, repeat and release``. They are
+reported (if requested ``0b10``) as a sub-field of the modifiers field
+(separated by a colon). If no modifiers are present, the modifiers field must
+have the value ``1`` and the event type sub-field the type of event. The
+``press`` event type has value ``1`` and is the default if no event type sub
+field is present. The ``repeat`` type is ``2`` and the ``release`` type is
+``3``. So for example::
+
+    CSI key-code             # this is a press event
+    CSI key-code;modifier    # this is a press event
+    CSI key-code;modifier:1  # this is a press event
+    CSI key-code;modifier:2  # this is a repeat event
+    CSI key-code;modifier:3  # this is a release event
+
+
+.. note:: Key events that result in text are reported as plain UTF-8 text, so
+   events are not supported for them, unless the application requests *key
+   report mode*, see below.
+
+.. _text_as_codepoints:
+
+Text as code points
+~~~~~~~~~~~~~~~~~~~~~
+
+The terminal can optionally send the text associated with key events as a
+sequence of Unicode code points. This behavior is opt-in by the :ref:`progressive
+enhancement <progressive_enhancement>` mechanism described below. Some examples::
+
+    shift+a -> CSI 97 ; 2 ; 65 u  # The text 'A' is reported as 65
+    option+a -> CSI 97 ; ; 229 u  # The text 'å' is reported as 229
+
+If multiple code points are present, they must be separated by colons.
+If no known key is associated with the text the key number ``0`` must be used.
+
+
+Non-Unicode keys
+~~~~~~~~~~~~~~~~~~~~~~~
+
+There are many keys that don't correspond to letters from human languages, and
+thus aren't represented in Unicode. Think of functional keys, such as
+:kbd:`Escape, Play, Pause, F1, Home, etc`. These are encoded using Unicode code
+points from the Private Use Area (``57344 - 63743``). The mapping of key
+names to code points for these keys is in the
+:ref:`Functional key definition table below <functional>`.
+
+
+.. _progressive_enhancement:
+
+Progressive enhancement
+--------------------------
+
+While, in theory, every key event could be completely represented by this
+protocol and all would be hunk-dory, in reality there is a vast universe of
+existing terminal programs that expect legacy control codes for key events and
+that are not likely to ever be updated. To support these, in default mode,
+the terminal will emit legacy escape codes for compatibility. If a terminal
+program wants more robust key handling, it can request it from the terminal,
+via the mechanism described here. Each enhancement is described in detail
+below. The escape code for requesting enhancements is::
+
+    CSI = flags ; mode u
+
+Here ``flags`` is a decimal encoded integer to specify a set of bit-flags. The
+meanings of the flags are given below. The second, ``mode`` parameter is
+optional (defaulting to ``1``) and specifies how the flags are applied.
+The value ``1`` means all set bits are set and all unset bits are reset.
+The value ``2`` means all set bits are set, unset bits are left unchanged.
+The value ``3`` means all set bits are reset, unset bits are left unchanged.
+
+.. csv-table:: The progressive enhancement flags
+   :header: "Bit", "Meaning"
+
+   "0b1 (1)", ":ref:`disambiguate`"
+   "0b10 (2)", ":ref:`report_events`"
+   "0b100 (4)", ":ref:`report_alternates`"
+   "0b1000 (8)", ":ref:`report_all_keys`"
+   "0b10000 (16)", ":ref:`report_text`"
+
+The program running in the terminal can query the terminal for the
+current values of the flags by sending::
+
+    CSI ? u
+
+The terminal will reply with::
+
+    CSI ? flags u
+
+The program can also push/pop the current flags onto a stack in the
+terminal with::
+
+    CSI > flags u  # for push, if flags ommitted default to zero
+    CSI < number u # to pop number entries, defaulting to 1 if unspecified
+
+Terminals should limit the size of the stack as appropriate, to prevent
+Denial-of-Service attacks. Terminals must maintain separate stacks for the main
+and alternate screens. If a pop request is received that empties the stack,
+all flags are reset. If a push request is received and the stack is full, the
+oldest entry from the stack must be evicted.
+
+.. note:: The main and alternate screens in the terminal emulator must maintain
+   their own, independent, keyboard mode stacks. This is so that a program that
+   uses the alternate screen such as an editor, can change the keyboard mode
+   in the alternate screen only, without affecting the mode in the main screen
+   or even knowing what that mode is. Without this, and if no stack is
+   implemented for keyboard modes (such as in some legacy terminal emulators)
+   the editor would have to somehow know what the keyboard mode of the main
+   screen is and restore to that mode on exit.
+
+.. note:: In the interests of interoperation, the XTerm specific sequences
+   `CSI > 4; 1 m` and `CSI > 4; 0 m` are treated as `CSI > 1 u` and `CSI < 1 u`.
+   These codes cause XTerm to use the CSI u encoding for more keys and are therefore
+   treated as similar to the disambiguate progressive enhancement.
+
+.. _disambiguate:
+
+Disambiguate escape codes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This type of progressive enhancement (``0b1``) fixes the problem of some legacy key press
+encodings overlapping with other control codes. For instance, pressing the
+:kbd:`Esc` key generates the byte ``0x1b`` which also is used to indicate the
+start of an escape code. Similarly pressing the key :kbd:`alt+[` will generate
+the bytes used for CSI control codes.
+
+Turning on this flag will cause the terminal to report the :kbd:`Esc, alt+key,
+ctrl+key, ctrl+alt+key, shift+alt+key` keys using ``CSI u`` sequences instead
+of legacy ones. Here key is any ASCII key as described in :ref:`legacy_text`.
+Additionally, all keypad keys will be reported as separate keys with ``CSI u``
+encoding, using dedicated numbers from the :ref:`table below <functional>`.
+
+With this flag turned on, all key events that do not generate text are
+represented in one of the following two forms::
+
+    CSI number; modifier u
+    CSI 1; modifier [~ABCDEFHPQRS]
+
+This makes it very easy to parse key events in an application. In particular,
+:kbd:`ctrl+c` will no longer generate the ``SIGINT`` signal, but instead be
+delivered as a ``CSI u`` escape code. This has the nice side effect of making it
+much easier to integrate into the application event loop. The only exceptions
+are the :kbd:`Enter, Tab and Backspace` keys which still generate the same
+bytes as in legacy mode this is to allow the user to type and execute commands
+in the shell such as ``reset`` after a program that sets this mode crashes
+without clearing it.
+
+.. _report_events:
+
+Report event types
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This progressive enhancement (``0b10``) causes the terminal to report key repeat
+and key release events. Normally only key press events are reported and key
+repeat events are treated as key press events. See :ref:`event_types` for
+details on how these are reported.
+
+.. _report_alternates:
+
+Report alternate keys
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This progressive enhancement (``0b100``) causes the terminal to report
+alternate key values in addition to the main value, to aid in shortcut
+matching. See :ref:`key_codes` for details on how these are reported.
+
+.. _report_all_keys:
+
+Report all keys as escape codes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Key events that generate text, such as plain key presses without modifiers,
+result in just the text being sent, in the legacy protocol. There is no way to
+be notified of key repeat/release events. These types of events are needed for
+some applications, such as games (think of movement using the ``WASD`` keys).
+
+This progressive enhancement (``0b1000``) turns on key reporting even for key
+events that generate text. When it is enabled, text will not be sent, instead
+only key events are sent. If the text is needed as well, combine with the
+Report associated text enhancement below.
+
+Additionally, with this mode, events for pressing modifier keys are reported.
+Note that *all* keys are reported as escape codes, including :kbd:`Enter, Tab,
+Backspace` etc.
+
+.. _report_text:
+
+Report associated text
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This progressive enhancement (``0b10000``) causes key events that generate text
+to be reported as ``CSI u`` escape codes with the text embedded in the escape
+code. See :ref:`text_as_codepoints` above for details on the mechanism.
+
+
+.. _detection:
+
+Detection of support for this protocol
+------------------------------------------
+
+An application can query the terminal for support of this protocol by sending
+the escape code querying for the :ref:`current progressive enhancement
+<progressive_enhancement>` status
+followed by request for the `primary device attributes
+<https://vt100.net/docs/vt510-rm/DA1.html>`. If an answer for the device
+attributes is received without getting back an answer for the progressive
+enhancement the terminal does not support this protocol.
+
+
+Legacy key event encoding
+--------------------------------
+
+In the default mode, the terminal uses a legacy encoding for key events. In
+this encoding, only key press and repeat events are sent and there is no
+way to distinguish between them. Text is sent directly as UTF-8 bytes.
+
+Any key events not described in this section are sent using the standard
+``CSI u`` encoding. This includes keys that are not encodable in the legacy
+encoding, thereby increasing the space of usable key combinations even without
+progressive enhancement.
+
+Legacy functional keys
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+These keys are encoded using three schemes::
+
+    CSI number ; modifier ~
+    CSI 1 ; modifier {ABCDEFHPQRS}
+    SS3 {ABCDEFHPQRS}
+
+In the above, if there are no modifiers, the modifier parameter is omitted.
+The modifier value is encoded as described in the :ref:`modifiers` section,
+above. When the second form is used, the number is always ``1`` and must be
+omitted if the modifiers field is also absent. The third form becomes the
+second form when modifiers are present (``SS3 is the bytes 0x1b 0x4f``).
+
+These sequences must match entries in the terminfo database for maximum
+compatibility. The table below lists the key, its terminfo entry name and
+the escape code used for it by kitty. A different terminal would use whatever
+escape code is present in its terminfo database for the key.
+Some keys have an alternate representation when the terminal is in *cursor key
+mode* (the ``smkx/rmkx`` terminfo capabilities). This form is used only in
+*cursor key mode* and only when no modifiers are present.
+
+.. csv-table:: Legacy functional encoding
+   :header: "Name", "Terminfo name", "Escape code"
+
+    "INSERT",    "kich1",      "CSI 2 ~"
+    "DELETE",    "kdch1",      "CSI 3 ~"
+    "PAGE_UP",   "kpp",        "CSI 5 ~"
+    "PAGE_DOWN", "knp",        "CSI 6 ~"
+    "UP",        "cuu1,kcuu1", "CSI A, SS3 A"
+    "DOWN",      "cud1,kcud1", "CSI B, SS3 B"
+    "RIGHT",     "cuf1,kcuf1", "CSI C, SS3 C"
+    "LEFT",      "cub1,kcub1", "CSI D, SS3 D"
+    "HOME",      "home,khome", "CSI H, SS3 H"
+    "END",       "-,kend",     "CSI F, SS3 F"
+    "F1",        "kf1",        "SS3 P"
+    "F2",        "kf2",        "SS3 Q"
+    "F3",        "kf3",        "SS3 R"
+    "F4",        "kf4",        "SS3 S"
+    "F5",        "kf5",        "CSI 15 ~"
+    "F6",        "kf6",        "CSI 17 ~"
+    "F7",        "kf7",        "CSI 18 ~"
+    "F8",        "kf8",        "CSI 19 ~"
+    "F9",        "kf9",        "CSI 20 ~"
+    "F10",       "kf10",       "CSI 21 ~"
+    "F11",       "kf11",       "CSI 23 ~"
+    "F12",       "kf12",       "CSI 24 ~"
+
+There are a few more functional keys that have special cased legacy encodings.
+These are present because they are commonly used and for the sake of legacy
+terminal applications that get confused when seeing CSI u escape codes:
+
+.. csv-table:: C0 controls
+    :header: "Key", "No mods", "Ctrl", "Alt", "Shift", "Ctrl + Shift", "Alt + Shift", "Ctrl + Alt"
+
+    "Enter",     "0xd",  "0xd",  "0x1b 0xd",  "0xd",   "0xd",   "0x1b 0xd",   "0x1b 0xd"
+    "Escape",    "0x1b", "0x1b", "0x1b 0x1b", "0x1b",  "0x1b",  "0x1b 0x1b",  "0x1b 0x1b"
+    "Backspace", "0x7f", "0x8",  "0x1b 0x7f", "0x7f",  "0x8",   "0x1b 0x7f",  "0x1b 0x8"
+    "Tab",       "0x9",  "0x9",  "0x1b 0x9",  "CSI Z", "CSI Z", "0x1b CSI Z", "0x1b 0x9"
+    "Space",     "0x20", "0x0",  "0x1b 0x20", "0x20",  "0x0",   "0x1b 0x20",  "0x1b 0x0"
+
+Note that :kbd:`Backspace` and :kbd:`ctrl+Backspace` are swapped in some
+terminals, this can be detected using the ``kbs`` terminfo property that
+must correspond to the :kbd:`Backspace` key.
+
+All keypad keys are reported as their equivalent non-keypad keys. To
+distinguish these, use the :ref:`disambiguate <disambiguate>` flag.
+
+.. _legacy_text:
+
+Legacy text keys
+~~~~~~~~~~~~~~~~~~~
+
+For legacy compatibility, the keys
+:kbd:`a-z 0-9 \` - = [ ] \ ; ' , . /` with the modifiers
+:kbd:`shift, alt, ctrl, shift+alt, ctrl+alt` are output using the
+following algorithm:
+
+#. If the :kbd:`alt` key is pressed output the byte for ``ESC (0x1b)``
+#. If the :kbd:`ctrl` modifier is pressed map the key using the table
+   in :ref:`ctrl_mapping`.
+#. Otherwise, if the :kbd:`shift` modifier is pressed, output the shifted key,
+   for example, ``A`` for ``a`` and ``$`` for ``4``.
+#. Otherwise, output the key unmodified
+
+Additionally, :kbd:`ctrl+space` is output as the NULL byte ``(0x0)``.
+
+Any other combination of modifiers with these keys is output as the appropriate
+``CSI u`` escape code.
+
+.. csv-table:: Example encodings
+   :header: "Key", "Plain", "shift", "alt", "ctrl", "shift+alt", "alt+ctrl", "ctrl+shift"
+
+    "i", "i (105)", "I (73)", "ESC i", ") (41)", "ESC I", "ESC )", "CSI 105; 6 u"
+    "3", "3 (51)", "# (35)", "ESC 3", "3 (51)", "ESC #", "ESC 3", "CSI 51; 6 u"
+    ";", "; (59)", ": (58)", "ESC ;", "; (59)", "ESC :", "ESC ;", "CSI 59; 6 u"
+
+.. note::
+   Many of the legacy escape codes are ambiguous with multiple different key
+   presses yielding the same escape code(s), for example, :kbd:`ctrl+i` is the
+   same as :kbd:`tab`, :kbd:`ctrl+m` is the same as :kbd:`Enter`, :kbd:`ctrl+r`
+   is the same :kbd:`ctrl+shift+r`, etc. To resolve these use the
+   :ref:`disambiguate progressive enhancement <disambiguate>`.
+
+
+.. _functional:
+
+Functional key definitions
+----------------------------
+
+All numbers are in the Unicode Private Use Area (``57344 - 63743``) except
+for a handful of keys that use numbers under 32 and 127 (C0 control codes) for legacy
+compatibility reasons.
+
+.. {{{
+.. start functional key table (auto generated by gen-key-constants.py do not edit)
+
+.. csv-table:: Functional key codes
+   :header: "Name", "CSI", "Name", "CSI"
+
+   "ESCAPE", "``27 u``", "ENTER", "``13 u``"
+   "TAB", "``9 u``", "BACKSPACE", "``127 u``"
+   "INSERT", "``2 ~``", "DELETE", "``3 ~``"
+   "LEFT", "``1 D``", "RIGHT", "``1 C``"
+   "UP", "``1 A``", "DOWN", "``1 B``"
+   "PAGE_UP", "``5 ~``", "PAGE_DOWN", "``6 ~``"
+   "HOME", "``1 H or 7 ~``", "END", "``1 F or 8 ~``"
+   "CAPS_LOCK", "``57358 u``", "SCROLL_LOCK", "``57359 u``"
+   "NUM_LOCK", "``57360 u``", "PRINT_SCREEN", "``57361 u``"
+   "PAUSE", "``57362 u``", "MENU", "``57363 u``"
+   "F1", "``1 P or 11 ~``", "F2", "``1 Q or 12 ~``"
+   "F3", "``1 R or 13 ~``", "F4", "``1 S or 14 ~``"
+   "F5", "``15 ~``", "F6", "``17 ~``"
+   "F7", "``18 ~``", "F8", "``19 ~``"
+   "F9", "``20 ~``", "F10", "``21 ~``"
+   "F11", "``23 ~``", "F12", "``24 ~``"
+   "F13", "``57376 u``", "F14", "``57377 u``"
+   "F15", "``57378 u``", "F16", "``57379 u``"
+   "F17", "``57380 u``", "F18", "``57381 u``"
+   "F19", "``57382 u``", "F20", "``57383 u``"
+   "F21", "``57384 u``", "F22", "``57385 u``"
+   "F23", "``57386 u``", "F24", "``57387 u``"
+   "F25", "``57388 u``", "F26", "``57389 u``"
+   "F27", "``57390 u``", "F28", "``57391 u``"
+   "F29", "``57392 u``", "F30", "``57393 u``"
+   "F31", "``57394 u``", "F32", "``57395 u``"
+   "F33", "``57396 u``", "F34", "``57397 u``"
+   "F35", "``57398 u``", "KP_0", "``57399 u``"
+   "KP_1", "``57400 u``", "KP_2", "``57401 u``"
+   "KP_3", "``57402 u``", "KP_4", "``57403 u``"
+   "KP_5", "``57404 u``", "KP_6", "``57405 u``"
+   "KP_7", "``57406 u``", "KP_8", "``57407 u``"
+   "KP_9", "``57408 u``", "KP_DECIMAL", "``57409 u``"
+   "KP_DIVIDE", "``57410 u``", "KP_MULTIPLY", "``57411 u``"
+   "KP_SUBTRACT", "``57412 u``", "KP_ADD", "``57413 u``"
+   "KP_ENTER", "``57414 u``", "KP_EQUAL", "``57415 u``"
+   "KP_SEPARATOR", "``57416 u``", "KP_LEFT", "``57417 u``"
+   "KP_RIGHT", "``57418 u``", "KP_UP", "``57419 u``"
+   "KP_DOWN", "``57420 u``", "KP_PAGE_UP", "``57421 u``"
+   "KP_PAGE_DOWN", "``57422 u``", "KP_HOME", "``57423 u``"
+   "KP_END", "``57424 u``", "KP_INSERT", "``57425 u``"
+   "KP_DELETE", "``57426 u``", "KP_BEGIN", "``1 E or 57427 ~``"
+   "MEDIA_PLAY", "``57428 u``", "MEDIA_PAUSE", "``57429 u``"
+   "MEDIA_PLAY_PAUSE", "``57430 u``", "MEDIA_REVERSE", "``57431 u``"
+   "MEDIA_STOP", "``57432 u``", "MEDIA_FAST_FORWARD", "``57433 u``"
+   "MEDIA_REWIND", "``57434 u``", "MEDIA_TRACK_NEXT", "``57435 u``"
+   "MEDIA_TRACK_PREVIOUS", "``57436 u``", "MEDIA_RECORD", "``57437 u``"
+   "LOWER_VOLUME", "``57438 u``", "RAISE_VOLUME", "``57439 u``"
+   "MUTE_VOLUME", "``57440 u``", "LEFT_SHIFT", "``57441 u``"
+   "LEFT_CONTROL", "``57442 u``", "LEFT_ALT", "``57443 u``"
+   "LEFT_SUPER", "``57444 u``", "LEFT_HYPER", "``57445 u``"
+   "LEFT_META", "``57446 u``", "RIGHT_SHIFT", "``57447 u``"
+   "RIGHT_CONTROL", "``57448 u``", "RIGHT_ALT", "``57449 u``"
+   "RIGHT_SUPER", "``57450 u``", "RIGHT_HYPER", "``57451 u``"
+   "RIGHT_META", "``57452 u``", "ISO_LEVEL3_SHIFT", "``57453 u``"
+   "ISO_LEVEL5_SHIFT", "``57454 u``"
+
+.. end functional key table
+.. }}}
+
+Note that the escape codes above of the form ``CSI 1 letter`` will omit the
+``1`` if there are no modifiers, since ``1`` is the default value.
+
+.. _ctrl_mapping:
+
+Legacy :kbd:`ctrl` mapping of ASCII keys
+------------------------------------------
+
+When the :kbd:`ctrl` key and another key are pressed on the keyboard, terminals
+map the result *for some keys* to a *C0 control code* i.e. an value from ``0 -
+31``. This mapping was historically dependent on the layout of hardware
+terminal keyboards and is not specified anywhere, completely. The best known
+reference is `Table 3-5 in the VT-100 docs <https://vt100.net/docs/vt100-ug/chapter3.html>`_.
+
+The table below provides a mapping that is a commonly used superset of the table above.
+Any ASCII keys not in the table must be left untouched by :kbd:`ctrl`.
+
+.. {{{
+.. start ctrl mapping (auto generated by gen-key-constants.py do not edit)
+.. csv-table:: Emitted bytes when :kbd:`ctrl` is held down and a key is pressed
+   :header: "Key", "Byte", "Key", "Byte", "Key", "Byte"
+
+   "SPC ", "0", "/", "31", "0", "48"
+   "1", "49", "2", "0", "3", "27"
+   "4", "28", "5", "29", "6", "30"
+   "7", "31", "8", "127", "9", "57"
+   "?", "127", "@", "0", "[", "27"
+   "\\", "28", "]", "29", "^", "30"
+   "_", "31", "a", "1", "b", "2"
+   "c", "3", "d", "4", "e", "5"
+   "f", "6", "g", "7", "h", "8"
+   "i", "9", "j", "10", "k", "11"
+   "l", "12", "m", "13", "n", "14"
+   "o", "15", "p", "16", "q", "17"
+   "r", "18", "s", "19", "t", "20"
+   "u", "21", "v", "22", "w", "23"
+   "x", "24", "y", "25", "z", "26"
+   "~", "30"
+
+.. end ctrl mapping
+.. }}}
+
+.. _fixterms_bugs:
+
+Bugs in fixterms
+-------------------
+
+The following is a list of errata in the `original fixterms proposal
+<http://www.leonerd.org.uk/hacks/fixterms/>`_, corrected in this
+specification.
+
+* No way to disambiguate :kbd:`Esc` key presses, other than using 8-bit controls
+  which are undesirable for other reasons
+
+* Incorrectly claims special keys are sometimes encoded using ``CSI letter`` encodings when it
+  is actually ``SS3 letter`` in all terminals newer than a VT-52, which is
+  pretty much everything.
+
+* :kbd:`ctrl+shift+tab` should be ``CSI 9 ; 6 u`` not ``CSI 1 ; 5 Z``
+  (shift+tab is not a separate key from tab)
+
+* No support for the :kbd:`super` modifier.
+
+* Makes no mention of cursor key mode and how it changes encodings
+
+* Incorrectly encoding shifted keys when shift modifier is used, for instance,
+  for :kbd:`ctrl+shift+i` is encoded as :kbd:`ctrl+I`.
+
+* No way to have non-conflicting escape codes for :kbd:`alt+letter,
+  ctrl+letter, ctrl+alt+letter` key presses
+
+* No way to specify both shifted and unshifted keys for robust shortcut
+  matching (think matching :kbd:`ctrl+shift+equal` and :kbd:`ctrl+plus`)
+
+* No way to specify alternate layout key. This is useful for keyboard layouts
+  such as Cyrillic where you want the shortcut :kbd:`ctrl+c` to work when
+  pressing the :kbd:`ctrl+С` on the keyboard.
+
+* No way to report repeat and release key events, only key press events
+
+* No way to report key events for presses that generate text, useful for
+  gaming. Think of using the :kbd:`WASD` keys to control movement.
+
+* Only a small subset of all possible functional keys are assigned numbers.
+
+* Claims the ``CSI u`` escape code has no fixed meaning, but has been used for
+  decades as ``SCORC`` for instance by xterm and ansi.sys and `DECSMBV
+  <https://vt100.net/docs/vt510-rm/DECSMBV.html>`_ by the VT-510 hardware
+  terminal. This doesn't really matter since these uses are for communication
+  to the terminal not from the terminal.
+
+* Handwaves that :kbd:`ctrl` *tends to* mask with ``0x1f``. In actual fact it
+  does this only for some keys. The action of :kbd:`ctrl` is not specified and
+  varies between terminals, historically because of different keyboard layouts.

docs/kittens/broadcast.rst

@@ -0,0 +1,22 @@
+broadcast
+==================================================
+
+*Type text in all kitty windows simultaneously*
+
+The ``broadcast`` kitten can be used to type text simultaneously in
+all kitty windows (or a subset as desired).
+
+To use it, simply create a mapping in :file:`kitty.conf` such as::
+
+    map F1 launch --allow-remote-control kitty +kitten broadcast
+
+Then press the :kbd:`F1` key and whatever you type in the newly created widow
+will be sent to all kitty windows.
+
+You can use the options described below to control which windows
+are selected.
+
+.. program:: kitty +kitten broadcast
+
+
+.. include:: /generated/cli-kitten-broadcast.rst

docs/kittens/clipboard.rst

@@ -1,6 +1,8 @@
-clipboard - copy/paste to the system clipboard
+clipboard
 ==================================================
 
+*Copy/paste to the system clipboard from shell scripts*
+
 .. highlight:: sh
 
 
@@ -21,7 +23,4 @@ use::
 .. program:: kitty +kitten clipboard
 
 
-Command Line Interface
---------------------------
-
 .. include:: /generated/cli-kitten-clipboard.rst

docs/kittens/custom.rst

@@ -20,6 +20,9 @@ your machine).
 
 .. code-block:: python
 
+    from typing import List
+    from kitty.boss import Boss
+
     def main(args: List[str]) -> str:
         # this is the main entry point of the kitten, it will be executed in
         # the overlay window when the kitten is launched
@@ -28,7 +31,7 @@ your machine).
         # handle_result() function
         return answer
 
-    def handle_result(args: List[str], answer: str, target_window_id: int, boss: kitty.boss.Boss) -> None:
+    def handle_result(args: List[str], answer: str, target_window_id: int, boss: Boss) -> None:
         # get the kitty window into which to paste answer
         w = boss.window_id_map.get(target_window_id)
         if w is not None:
@@ -100,7 +103,8 @@ terminal program, you can tell the kittens system to run the
 ``handle_result()`` function without first running the ``main()`` function.
 
 For example, here is a kitten that "zooms/unzooms" the current terminal window
-by switching to the stack layout or back to the previous layout.
+by switching to the stack layout or back to the previous layout. This is
+equivalent to the builtin :ref:`action-toggle_layout` action.
 
 Create a file in the kitty config folder, :file:`~/.config/kitty/zoom_toggle.py`
 
@@ -182,6 +186,104 @@ The output of print statements will go to the ``STDOUT`` of the kitty process.
 So if you run kitty from another kitty instance, the output will be visible
 in the first kitty instance.
 
+Adding options to kittens
+----------------------------
+
+If you would like to use kitty's config framework to make your kittens
+configurable, you will need some boilerplate. In the directory
+of your kitten make the following files.
+
+:file:`kitten_options_definition.py`
+
+.. code-block:: python
+
+    from kitty.conf.types import Action, Definition
+
+    definition = Definition(
+        '!kitten_options_utils',
+        Action(
+            'map', 'parse_map',
+            {'key_definitions': 'kitty.conf.utils.KittensKeyMap'},
+            ['kitty.types.ParsedShortcut', 'kitty.conf.utils.KeyAction']
+        ),
+    )
+
+    agr = definition.add_group
+    egr = definition.end_group
+    opt = definition.add_option
+    map = definition.add_map
+
+    # main options {{{
+    agr('main', 'Main')
+
+    opt('some_option', '33',
+        option_type='some_option_parser',
+        long_text='''
+    Help text for this option
+    '''
+        )
+    egr()  # }}}
+
+    # shortcuts {{{
+    agr('shortcuts', 'Keyboard shortcuts')
+
+    map('Quit', 'quit q quit')
+    egr()  # }}}
+
+
+:file:`kitten_options_utils.py`
+
+.. code-block:: python
+
+    from kitty.conf.utils import KittensKeyDefinition, key_func, parse_kittens_key
+
+    func_with_args, args_funcs = key_func()
+    FuncArgsType = Tuple[str, Sequence[Any]]
+
+    def some_option_parser(val: str) -> int:
+        return int(val) + 3000
+
+    def parse_map(val: str) -> Iterable[KittensKeyDefinition]:
+        x = parse_kittens_key(val, args_funcs)
+        if x is not None:
+            yield x
+
+Then run::
+
+    kitty +runpy 'from kitty.conf.generate import main; main()' /path/to/kitten_options_definition.py
+
+You can parse and read the options in your kitten using the following code:
+
+.. code-block:: python
+
+    from .kitten_options_types import Options, defaults
+    from kitty.conf.utils import load_config as _load_config, parse_config_base
+    from typing import Optional, Iterable, Dict, Any
+
+    def load_config(*paths: str, overrides: Optional[Iterable[str]] = None) -> Options:
+        from .kitten_options_parse import  (
+            create_result_dict, merge_result_dicts, parse_conf_item
+        )
+
+        def parse_config(lines: Iterable[str]) -> Dict[str, Any]:
+            ans: Dict[str, Any] = create_result_dict()
+            parse_config_base(
+                lines,
+                parse_conf_item,
+                ans,
+            )
+            return ans
+
+        overrides = tuple(overrides) if overrides is not None else ()
+        opts_dict, paths = _load_config(defaults, parse_config, merge_result_dicts, *paths, overrides=overrides)
+        opts = Options(opts_dict)
+        opts.config_paths = paths
+        opts.config_overrides = overrides
+        return opts
+
+See the code for the builtin diff kitten for examples of creating more options
+and keyboard shortcuts.
+
 .. _external_kittens:
 
 Kittens created by kitty users

docs/kittens/diff.rst

@@ -1,6 +1,8 @@
-kitty-diff - A fast side-by-side diff tool with syntax highlighting and images
+kitty-diff
 ================================================================================
 
+*A fast side-by-side diff tool with syntax highlighting and images*
+
 .. highlight:: sh
 
 Major Features
@@ -21,12 +23,10 @@ Major Features
 .. figure:: ../screenshots/diff.png
    :alt: Screenshot, showing a sample diff
    :align: center
-   :scale: 100%
+   :width: 100%
 
    Screenshot, showing a sample diff
 
-.. contents::
-
 
 Installation
 ---------------
@@ -34,7 +34,7 @@ Installation
 Simply :ref:`install kitty <quickstart>`.  You also need
 to have either the `git <https://git-scm.com/>`_ program or the ``diff`` program
 installed. Additionally, for syntax highlighting to work,
-`pygments <http://pygments.org/>`_ must be installed (note that pygments is
+`pygments <https://pygments.org/>`_ must be installed (note that pygments is
 included in the macOS kitty app).
 
 
@@ -120,8 +120,8 @@ Why does this work only in kitty?
 
 The diff kitten makes use of various features that are :doc:`kitty only
 </protocol-extensions>`,  such as the :doc:`kitty graphics protocol
-</graphics-protocol>`, the :ref:`extended keyboard protocol
-<extended-key-protocol>`, etc. It also leverages terminal program
+</graphics-protocol>`, the :doc:`extended keyboard protocol
+</keyboard-protocol>`, etc. It also leverages terminal program
 infrastructure I created for all of kitty's other kittens to reduce the amount
 of code needed (the entire implementation is under 2000 lines of code).
 
@@ -142,9 +142,6 @@ configuration directives.
 .. include:: /generated/conf-kitten-diff.rst
 
 
-Command Line Interface
--------------------------
-
 .. include:: /generated/cli-kitten-diff.rst
 
 

docs/kittens/hints.rst

@@ -9,7 +9,7 @@ browser.
 .. figure:: ../screenshots/hints_mode.png
     :alt: URL hints mode
     :align: center
-    :scale: 100%
+    :width: 100%
 
     URL hints mode
 
@@ -28,11 +28,17 @@ to be used can be modified using options passed to the kitten. For example::
 will open the selected file in a new tab inside neovim when you press
 :kbd:`ctrl+g`.
 
+Pressing :sc:`open_selected_hyperlink` will open hyperlinks, i.e. a URL
+that has been marked as such by the program running in the terminal,
+for example, by ``ls --hyperlink=auto``. You can also :doc:`customize what actions are
+taken for different types of URLs <../open_actions>`.
+
 The hints kitten is very powerful to see more detailed help on its various
 options and modes of operation, see below. You can use these options to
 create mappings in :file:`kitty.conf` to select various different text
 snippets. See :sc:`insert_selected_path` for examples.
 
+
 Completely customizing the matching and actions of the kitten
 ---------------------------------------------------------------
 
@@ -82,8 +88,14 @@ Now run kitty with::
 When you press the :kbd:`F1` key you will be able to select a word to
 look it up in the Google dictionary.
 
-
-Command Line Interface
--------------------------
-
 .. include:: ../generated/cli-kitten-hints.rst
+
+.. note::
+
+    To avoid having to specify the same command line options on ever invocation,
+    you can use the :opt:`kitten_alias` option in :file:`kitty.conf` to create aliases
+    that have common sets of options. For example::
+
+        kitten_alias myhints hints --alphabet qfjdkslaureitywovmcxzpq1234567890
+
+    Documentation for the full set of options is below.

docs/kittens/hyperlinked_grep.rst

@@ -1,11 +1,14 @@
 Hyperlinked grep
 =================
 
+
 This kitten allows you to search your files using `ripgrep
 <https://www.google.com/search?q=ripgrep>`_ and open the results
 directly in your favorite editor in the terminal, at the line containing
 the search result, simply by clicking on the result you want.
 
+.. versionadded:: 0.19.0
+
 To set it up, first create :file:`~/.config/kitty/open-actions.conf` with the
 following contents:
 
@@ -55,7 +58,7 @@ Then, for example, for ZSH, add the following to :file:`.zshrc`::
     compdef _rg hg
 
 To learn more about kitty's powerful framework for customizing URL click
-actions, :doc:`see here <../open_actions>`.
+actions, :doc:`see here </open_actions>`.
 
 Hopefully, someday this functionality will make it into some `upstream grep
 <https://github.com/BurntSushi/ripgrep/issues/665>`_

docs/kittens/icat.rst

@@ -1,6 +1,8 @@
-icat - Display images in the terminal
+icat
 ========================================
 
+*Display images in the terminal*
+
 The ``icat`` kitten can be used to display arbitrary images in the |kitty|
 terminal. Using it is as simple as::
 
@@ -35,7 +37,4 @@ The ``icat`` kitten has various command line arguments to allow it to be used
 from inside other programs to display images. In particular, :option:`--place`,
 :option:`--detect-support` and :option:`--print-window-size`.
 
-Command Line Interface
---------------------------
-
 .. include:: /generated/cli-kitten-icat.rst

docs/kittens/panel.rst

@@ -14,7 +14,7 @@ using terminal programs instead of GUI toolkits.
 .. figure:: ../screenshots/panel.png
    :alt: Screenshot, showing a sample panel
    :align: center
-   :scale: 100%
+   :width: 100%
 
    Screenshot, showing a sample panel
 
@@ -37,7 +37,4 @@ print out ``Hello, world!``. You can make the terminal program as complex as
 you like, as demonstrated in the screenshot above.
 
 
-Command Line Interface
--------------------------
-
 .. include:: ../generated/cli-kitten-panel.rst

docs/kittens/query_terminal.rst

@@ -0,0 +1,18 @@
+Query terminal
+=================
+
+Used to query kitty from terminal programs about version, values of various
+runtime options controlling its features, etc.
+
+The querying is done using the (*semi*) standard XTGETTCAP escape sequence
+pioneered by XTerm, so it works over SSH as well. The downside is that it
+is slow, since it requires a roundtrip to the terminal emulator and back.
+
+If you want to do some of the same querying in your terminal program without
+depending on the kitten, you can do so, by processing the same escape codes.
+Search `this page <https://invisible-island.net/xterm/ctlseqs/ctlseqs.html>`_
+for *XTGETTCAP* to see the syntax for the escape code and read the source
+of this kitten to find the values of the keys for the various queries.
+
+
+.. include:: ../generated/cli-kitten-query_terminal.rst

docs/kittens/remote_file.rst

@@ -11,15 +11,18 @@ Then hold down :kbd:`ctrl+shift` and click the name of the file.
 .. figure:: ../screenshots/remote_file.png
     :alt: Remote file actions
     :align: center
-    :scale: 100%
+    :width: 100%
 
     Remote file actions
 
 |kitty| will ask you what you want to do with the remote file. You can choose
 to *Edit* it in which case kitty will download it and open it locally in your
-``EDITOR``. As you make changes to the file, they are automatically transferred
-to the remote computer. Note that this happens without needing to install *any*
-special software on the server, beyond ``ls`` that supports hyperlinks.
+:envvar:`EDITOR`. As you make changes to the file, they are automatically
+transferred to the remote computer. Note that this happens without needing
+to install *any* special software on the server, beyond ``ls`` that supports
+hyperlinks.
+
+.. versionadded:: 0.19.0
 
 .. note::
    Nested SSH sessions are not supported. The kitten will always try to copy

docs/kittens/unicode-input.rst

@@ -7,7 +7,7 @@ Press :sc:`input_unicode_character` to start the unicode input widget, shown bel
 .. figure:: ../screenshots/unicode.png
     :alt: A screenshot of the unicode input widget
     :align: center
-    :scale: 100%
+    :width: 100%
 
     A screenshot of the unicode input widget
 
@@ -18,16 +18,14 @@ typing a leading period and then the two character index and pressing Enter.
 The up and down arrow keys can be used to choose the previous and next unicode
 symbol respectively.
 
-In :guilabel:`Name` mode you instead type words from the character name and use the arrow
-keys/tab to select the character from the displayed matches. You can also type
-a leading period and the index for the match if you don't like to use arrow
-keys.
+In :guilabel:`Name` mode you instead type words from the character name and use
+the arrow keys/tab to select the character from the displayed matches. You can
+also type a space followed by a period and the index for the match if you don't
+like to use arrow keys.
 
 You can switch between modes using either the function keys or by pressing
-:kbd:`Ctrl+[` and :kbd:`Ctrl+]`.
+:kbd:`Ctrl+[` and :kbd:`Ctrl+]` or by pressing :kbd:`Ctrl+Tab` and
+:kbd:`Ctrl+Shift+Tab`.
 
 
-Command Line Interface
--------------------------
-
 .. include:: ../generated/cli-kitten-unicode_input.rst

docs/kittens_intro.rst

@@ -0,0 +1,66 @@
+.. _kittens:
+
+Extend with kittens
+-----------------------
+
+.. toctree::
+   :hidden:
+   :glob:
+
+   kittens/icat
+   kittens/diff
+   kittens/unicode-input
+   kittens/hints
+   kittens/remote_file
+   kittens/hyperlinked_grep
+   kittens/custom
+   kittens/*
+
+|kitty| has a framework for easily creating terminal programs that make use of
+its advanced features. These programs are called kittens. They are used both
+to add features to |kitty| itself and to create useful standalone programs.
+Some prominent kittens:
+
+:doc:`icat <kittens/icat>`
+    Display images in the terminal
+
+
+:doc:`diff <kittens/diff>`
+    A fast, side-by-side diff for the terminal with syntax highlighting and
+    images
+
+
+:doc:`Unicode Input <kittens/unicode-input>`
+    Easily input arbitrary unicode characters in |kitty| by name or hex code.
+
+
+:doc:`Hints <kittens/hints>`
+    Select and open/paste/insert arbitrary text snippets such as URLs,
+    filenames, words, lines, etc. from the terminal screen.
+
+
+:doc:`Remote file <kittens/remote_file>`
+    Edit, open, or download remote files over SSH easily, by simply clicking on
+    the filename.
+
+
+:doc:`Hyperlinked grep <kittens/hyperlinked_grep>`
+    Search your files using `ripgrep <https://github.com/BurntSushi/ripgrep>`_
+    and open the results directly in your favorite editor in the terminal,
+    at the line containing the search result, simply by clicking on the result you want.
+
+
+:doc:`Broadcast <kittens/broadcast>`
+    Type in one :term:`kitty window <window>` and have it broadcast to all (or a subset) of
+    other :term:`kitty windows <window>`.
+
+
+:doc:`Panel <kittens/panel>`
+    Draw a GPU accelerated dock panel on your desktop showing the output
+    from an arbitrary terminal program.
+
+
+:doc:`Clipboard <kittens/clipboard>`
+    Copy/paste to the clipboard from shell scripts, even over SSH.
+
+You can also :doc:`Learn to create your own kittens <kittens/custom>`.

docs/launch.rst

@@ -1,5 +1,5 @@
-Launching programs in new windows/tabs
-========================================
+The :command:`launch` command
+--------------------------------
 
 .. program:: launch
 
@@ -19,7 +19,6 @@ launch::
 
     map f1 launch vim path/to/some/file
 
-
 To open a new window with the same working directory as the currently
 active window::
 
@@ -29,6 +28,10 @@ To open the new window in a new tab::
 
     map f1 launch --type=tab
 
+To run multiple commands in a shell, use::
+
+    map f1 launch sh -c "ls && zsh"
+
 To pass the contents of the current screen and scrollback to the started process::
 
     map f1 launch --stdin-source=@screen_scrollback less
@@ -39,7 +42,7 @@ The piping environment
 --------------------------
 
 When using :option:`launch --stdin-source`, the program to which the data is
-piped has a special environment variable declared, ``KITTY_PIPE_DATA`` whose
+piped has a special environment variable declared, :envvar:`KITTY_PIPE_DATA` whose
 contents are::
 
    KITTY_PIPE_DATA={scrolled_by}:{cursor_x},{cursor_y}:{lines},{columns}
@@ -54,9 +57,34 @@ Special arguments
 -------------------
 
 There are a few special placeholder arguments that can be specified as part of
-the command line. Namely ``@selection`` which is replaced by the current
-selection and ``@active-kitty-window-id`` which is replaced by the id of the
-currently active kitty window. For example::
+the command line:
+
+
+``@selection``
+    replaced by the currently selected text
+
+``@active-kitty-window-id``
+    replaced by the id of the currently active kitty window
+
+``@line-count``
+    replaced by the number of lines in STDIN. Only present when passing some
+    data to STDIN
+
+``@input-line-number``
+    replaced the number of lines a pager should scroll to match the current
+    scroll position in kitty. See :opt:`scrollback_pager` for details
+
+``@scrolled-by``
+    replaced by the number of lines kitty is currently scrolled by
+
+``@cursor-x``
+    replaced by the current cursor x position with 1 being the leftmost cell
+
+``@cursor-y``
+    replaced by the current cursor y position with 1 being the topmost cell
+
+
+For example::
 
     map f1 launch my-program @active-kitty-window-id
 
@@ -93,6 +121,16 @@ in the window and ``window.id`` is the internal kitty ``id`` of the
 window.
 
 
+Finding executables
+-----------------------
+
+When you specify a command to run as just a name rather than an absolute path,
+it is searched for in the system-wide ``PATH`` environment variable. Note that
+this **may not** be the value of ``PATH`` inside a shell, as shell startup scripts
+often change the value of this variable. If it is not found there, then a
+system specific list of default paths is searched. If it is still not found,
+then your shell is run and the value of ``PATH`` inside the shell is used.
+
 Syntax reference
 ------------------
 

docs/layouts.rst

@@ -1,5 +1,5 @@
-Layouts
-============
+Arrange windows
+-------------------
 
 kitty has the ability to define its own windows that can be tiled next to each
 other in arbitrary arrangements, based on *Layouts*, see below for examples:
@@ -8,7 +8,7 @@ other in arbitrary arrangements, based on *Layouts*, see below for examples:
 .. figure:: screenshots/screenshot.png
     :alt: Screenshot, showing three programs in the 'Tall' layout
     :align: center
-    :scale: 100%
+    :width: 100%
 
     Screenshot, showing vim, tig and git running in |kitty| with the 'Tall' layout
 
@@ -16,7 +16,7 @@ other in arbitrary arrangements, based on *Layouts*, see below for examples:
 .. figure:: screenshots/splits.png
     :alt: Screenshot, showing windows in the 'Splits' layout
     :align: center
-    :scale: 100%
+    :width: 100%
 
     Screenshot, showing windows with arbitrary arrangement in the 'Splits'
     layout
@@ -27,8 +27,6 @@ you can switch layouts using :sc:`next_layout`. To control which layouts
 are available use :opt:`enabled_layouts`, the first listed layout becomes
 the default. Individual layouts and how to use them are described below.
 
-.. contents::
-
 
 The Stack Layout
 ------------------
@@ -171,6 +169,8 @@ are placed into vertical or horizontal splits, by default::
     │              │               │
     └──────────────┴───────────────┘
 
+.. versionadded:: 0.17.0
+    The Splits layout
 
 
 The Horizontal Layout

docs/marks.rst

@@ -1,11 +1,14 @@
-Marks
-=================
+Mark text on screen
+---------------------
 
 
 kitty has the ability to mark text on the screen based on regular expressions.
 This can be useful to highlight words or phrases when browsing output from long
 running programs or similar. Lets start with a few examples:
 
+Examples
+----------
+
 Suppose we want to be able to highlight the word ERROR in the current window.
 Add the following to :file:`kitty.conf`::
 
@@ -19,12 +22,12 @@ If you want to make it case-insensitive, use::
 
 To make it match only complete words, use::
 
-    map f1 toggle_marker regex 1 \bERROR\b
+    map f1 toggle_marker regex 1 \\bERROR\\b
 
 Suppose you want to highlight both :code:`ERROR` and :code:`WARNING`, case
 insensitively::
 
-    map f1 toggle_marker iregex 1 \bERROR\b 2 \bWARNING\b
+    map f1 toggle_marker iregex 1 \\bERROR\\b 2 \\bWARNING\\b
 
 kitty supports up to 3 mark groups (the numbers in the commands above). You
 can control the colors used for these groups in :file:`kitty.conf` with::
@@ -89,12 +92,11 @@ The syntax of the :code:`toggle_marker` command is::
 
 Here :code:`marker-type` is one of:
 
-    * :code:`text` - simple substring matching
-    * :code:`itext` - case-insensitive substring matching
-    * :code:`regex` - A python regular expression
-    * :code:`iregex` - A case-insensitive python regular expression
-    * :code:`function` - An arbitrary function defined in a python file, see
-      :ref:`marker_funcs`.
+* :code:`text` - simple substring matching
+* :code:`itext` - case-insensitive substring matching
+* :code:`regex` - A python regular expression
+* :code:`iregex` - A case-insensitive python regular expression
+* :code:`function` - An arbitrary function defined in a python file, see :ref:`marker_funcs`.
 
 .. _marker_funcs:
 

docs/open_actions.rst

@@ -1,10 +1,11 @@
-Customizing the actions taken when clicking on links
+Scripting the mouse click
 ======================================================
 
-|kitty| has support for `terminal hyperlinks <https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda>`_. These
+|kitty| has support for `terminal hyperlinks
+<https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda>`_. These
 are generated by many terminal programs, such as ``ls``, ``gcc``, ``systemd``,
-``mdcat``, etc. You can customize exactly what happens when clicking on these hyperlinks
-in |kitty|.
+:ref:`tool_mdcat`, etc. You can customize exactly what happens when clicking on these
+hyperlinks in |kitty|.
 
 You can tell kitty to take arbitrarily many, complex actions
 when a link is clicked. Let us illustrate with some examples, first. Create
@@ -63,7 +64,7 @@ Matching criteria
 ------------------
 
 An entry in :file:`open-actions.conf` must have one or more matching criteria.
-URLs that match all criteria for an entry will trigger that entries' actions.
+URLs that match all criteria for an entry will trigger that entry's actions.
 Processing stops at the first matching entry, so put more specific matching
 criteria at the start of the list. Entries in the file are separated by blank
 lines. The various available criteria are:
@@ -81,7 +82,11 @@ lines. The various available criteria are:
 
 ``mime``
     A comma separated list of MIME types, for example: ``text/*, image/*,
-    application/pdf``
+    application/pdf``. You can add MIME types to kitty by creating the
+    :file:`mime.types` in the kitty configuration directory. Useful if your
+    system MIME database does not have definitions you need. This file is
+    in the standard format of one definition per line, like: ``text/plain rst
+    md``. Note that the MIME type for directories is ``inode/directory``.
 
 ``ext``
     A comma separated list of file extensions, for example: ``jpeg, tar.gz``

docs/overview.rst

@@ -0,0 +1,283 @@
+Overview
+==============
+
+Design philosophy
+-------------------
+
+|kitty| is designed for power keyboard users. To that end all its controls
+work with the keyboard (although it fully supports mouse interactions as
+well). Its configuration is a simple, human editable, single file for
+easy reproducibility (I like to store configuration in source control).
+
+The code in |kitty| is designed to be simple, modular and hackable. It is
+written in a mix of C (for performance sensitive parts) and Python (for
+easy hackability of the UI). It does not depend on any large and complex
+UI toolkit, using only OpenGL for rendering everything.
+
+Finally, |kitty| is designed from the ground up to support all modern
+terminal features, such as unicode, true color, bold/italic fonts, text
+formatting, etc. It even extends existing text formatting escape codes,
+to add support for features not available elsewhere, such as colored and
+styled (curly) underlines. One of the design goals of |kitty| is to be
+easily extensible so that new features can be added in the future with
+relatively little effort.
+
+.. include:: basic.rst
+
+
+Configuring kitty
+-------------------
+
+|kitty| is highly configurable, everything from keyboard shortcuts to
+painting frames-per-second. Press :sc:`edit_config_file` in kitty
+to open its fully commented sample config file in your text editor.
+For details see the :doc:`configuration docs <conf>`.
+
+.. toctree::
+   :hidden:
+
+   conf
+
+
+.. _layouts:
+
+Layouts
+----------
+
+A :term:`layout` is an arrangement of multiple :term:`kitty windows <window>`
+inside a top-level :term:`OS window <os_window>`. The layout manages all its
+windows automatically, resizing and moving them as needed. You can create a new
+:term:`window` using the :sc:`new_window` key combination.
+
+Currently, there are seven layouts available:
+
+* **Fat** -- One (or optionally more) windows are shown full width on the top, the rest of the windows are shown side-by-side on the bottom
+* **Grid** -- All windows are shown in a grid
+* **Horizontal** -- All windows are shown side-by-side
+* **Splits** -- Windows arranged in arbitrary patterns created using horizontal and vertical splits
+* **Stack** -- Only a single maximized window is shown at a time
+* **Tall** -- One (or optionally more) windows are shown full height on the left, the rest of the windows are shown one below the other on the right
+* **Vertical** -- All windows are shown one below the other
+
+By default, all layouts are enabled and you can switch between layouts using
+the :sc:`next_layout` key combination. You can also create shortcuts to select
+particular layouts, and choose which layouts you want to enable/disable, see
+:ref:`conf-kitty-shortcuts.layout` for examples. The first layout listed in
+:opt:`enabled_layouts` becomes the default layout.
+
+For more details on the layouts and how to use them see :doc:`the documentation
+<layouts>`.
+
+.. toctree::
+   :hidden:
+
+   layouts
+
+Extending kitty
+------------------
+
+kitty has a powerful framework for scripting. You can create small terminal
+programs called :doc:`kittens <kittens_intro>`. These can used to add features
+to kitty, for example, :doc:`editing remote files <kittens/remote_file>` or
+:doc:`inputting unicode characters <kittens/unicode-input>`. They can also be
+used to create programs that leverage kitty's powerful features, for example,
+:doc:`viewing images <kittens/icat>` or :doc:`diffing files with images
+<kittens/diff>`.
+
+You can :doc:`create your own kittens to scratch your own itches
+<kittens/custom>`.
+
+For a list of all the builtin kittens, :ref:`see here <kittens>`.
+
+.. toctree::
+   :hidden:
+
+   kittens_intro
+
+
+Remote control
+------------------
+
+|kitty| has a very powerful system that allows you to control it from the
+:doc:`shell prompt, even over SSH <remote-control>`. You can change colors,
+fonts, open new :term:`windows <window>`, :term:`tabs <tab>`, set their titles,
+change window layout, get text
+from one window and send text to another, etc, etc. The possibilities are
+endless. See the :doc:`tutorial <remote-control>` to get started.
+
+.. toctree::
+   :hidden:
+
+   remote-control
+
+
+.. _sessions:
+
+Startup Sessions
+------------------
+
+You can control the :term:`tabs <tab>`, `:term:`kitty window <window>` layout,
+working directory, startup programs,
+etc. by creating a "session" file and using the :option:`kitty --session`
+command line flag or the :opt:`startup_session` option in :file:`kitty.conf`.
+For example:
+
+.. code-block:: session
+
+    # Set the layout for the current tab
+    layout tall
+    # Set the working directory for windows in the current tab
+    cd ~
+    # Create a window and run the specified command in it
+    launch zsh
+    # Create a window with some environment variables set and run
+    # vim in it
+    launch --env FOO=BAR vim
+    # Set the title for the next window
+    launch --title "Chat with x" irssi --profile x
+
+    # Create a new tab (the part after new_tab is the optional tab
+    # name which will be displayed in the tab bar, if omitted, the
+    # title of the active window will be used instead)
+    new_tab my tab
+    cd ~/somewhere
+    # Set the layouts allowed in this tab
+    enabled_layouts tall, stack
+    # Set the current layout
+    layout stack
+    launch zsh
+
+    # Create a new OS window
+    new_os_window
+    # set new window size to 80x25 cells
+    os_window_size 80c 25c
+    # set the --class for the new OS window
+    os_window_class mywindow
+    launch sh
+    # Make the current window the active (focused) window
+    focus
+    launch emacs
+
+.. note::
+    The :doc:`launch <launch>` command when used in a session file
+    cannot create new OS windows, or tabs.
+
+
+Creating tabs/windows
+-------------------------------
+
+kitty can be told to run arbitrary programs in new :term:`tabs <tab>`,
+:term:`windows <window>` or :term:`overlays <overlay>` at a keypress.
+To learn how to do this, see :doc:`here <launch>`.
+
+.. toctree::
+   :hidden:
+
+   launch
+
+
+Mouse features
+-------------------
+
+* You can click on a URL to open it in a browser.
+* You can double click to select a word and then drag to select more words.
+* You can triple click to select a line and then drag to select more lines.
+* You can triple click while holding :kbd:`ctrl+alt` to select from clicked
+  point to end of line.
+* You can right click to extend a previous selection.
+* You can hold down :kbd:`ctrl+alt` and drag with the mouse to select in
+  columns.
+* Selecting text automatically copies it to the primary clipboard (on
+  platforms with a primary clipboard).
+* You can middle click to paste from the primary clipboard (on platforms
+  with a primary clipboard).
+* You can select text with kitty even when a terminal program has grabbed
+  the mouse by holding down the :kbd:`shift` key.
+
+All these actions can be customized in :file:`kitty.conf` as described
+:ref:`here <conf-kitty-mouse.mousemap>`.
+
+You can also customize what happens when clicking on :term:`hyperlinks` in kitty,
+having it open files in your editor, download remote files, open things
+in your browser, etc.
+
+For details, see :doc:`here <open_actions>`.
+
+.. toctree::
+   :hidden:
+
+   open_actions
+
+Font control
+-----------------
+
+|kitty| has extremely flexible and powerful font selection features. You can
+specify individual families for the regular, bold, italic and bold+italic
+fonts. You can even specify specific font families for specific ranges of
+unicode characters. This allows precise control over text rendering. It can
+come in handy for applications like powerline, without the need to use patched
+fonts. See the various font related configuration directives in
+:ref:`conf-kitty-fonts`.
+
+
+.. _scrollback:
+
+The scrollback buffer
+-----------------------
+
+|kitty| supports scrolling back to view history, just like most terminals. You
+can use either keyboard shortcuts or the mouse scroll wheel to do so.  However,
+|kitty| has an extra, neat feature. Sometimes you need to explore the
+scrollback buffer in more detail, maybe search for some text or refer to it
+side-by-side while typing in a follow-up command. |kitty| allows you to do this
+by pressing the :sc:`show_scrollback` key-combination, which will open the
+scrollback buffer in your favorite pager program (which is ``less`` by default).
+Colors and text formatting are preserved. You can explore the scrollback buffer
+comfortably within the pager.
+
+Additionally, you can pipe the contents of the scrollback buffer to an
+arbitrary, command running in a new :term:`window`, :term:`tab` or :term:`overlay`,
+for example::
+
+   map f1 launch --stdin-source=@screen_scrollback --stdin-add-formatting less +G -R
+
+Would open the scrollback buffer in a new :term:`window` when you press the :kbd:`F1`
+key. See :sc:`show_scrollback` for details.
+
+If you want to use it with an editor such as vim to get more powerful features,
+you can see tips for doing so, in
+`this thread <https://github.com/kovidgoyal/kitty/issues/719>`_.
+
+If you wish to store very large amounts of scrollback to view using the piping or
+:sc:`show_scrollback` features, you can use the :opt:`scrollback_pager_history_size`
+option.
+
+.. _cpbuf:
+
+Multiple copy/paste buffers
+-----------------------------
+
+In addition to being able to copy/paste from the system clipboard, in |kitty| you
+can also setup an arbitrary number of copy paste buffers. To do so, simply add
+something like the following to your :file:`kitty.conf`::
+
+   map f1 copy_to_buffer a
+   map f2 paste_from_buffer a
+
+This will allow you to press :kbd:`F1` to copy the current selection to an
+internal buffer named ``a`` and :kbd:`F2` to paste from that buffer. The buffer
+names are arbitrary strings, so you can define as many such buffers as you
+need.
+
+
+Marks
+-------------
+
+kitty has the ability to mark text on the screen based on regular expressions.
+This can be useful to highlight words or phrases when browsing output from long
+running programs or similar. To learn how this feature works, see :doc:`marks`.
+
+.. toctree::
+   :hidden:
+
+   marks

docs/performance.rst

@@ -1,4 +1,4 @@
-|kitty| Performance
+Performance
 ===================
 
 The main goals for |kitty| performance are user perceived latency while typing

docs/pipe.rst

@@ -1,3 +1,5 @@
+:orphan:
+
 Working with the screen and history buffer contents
 ======================================================
 

docs/protocol-extensions.rst

@@ -1,7 +1,7 @@
-Extensions to the xterm protocol
+Terminal protocol extensions
 ===================================
 
-|kitty| has a few extensions to the xterm protocol, to enable advanced features.
+|kitty| has extensions to the legacy terminal protocol, to enable advanced features.
 These are typically in the form of new or re-purposed escape codes. While these
 extensions are currently |kitty| specific, it would be nice to get some of them
 adopted more broadly, to push the state of terminal emulators forward.
@@ -16,339 +16,17 @@ is to make it as easy to implement these protocol extensions as possible,
 thereby hopefully encouraging their widespread adoption.
 
 If you wish to discuss these extensions, propose additions/changes to them
-please do so by opening issues in the github bug tracker.
+please do so by opening issues in the `GitHub
+<https://github.com/kovidgoyal/kitty/issues>`_ bug tracker.
 
-.. contents::
 
-Colored and styled underlines
--------------------------------
+.. toctree::
+   :maxdepth: 1
 
-|kitty| supports colored and styled (wavy) underlines. This is of particular
-use in terminal editors such as vim and emacs to display red, wavy underlines
-under mis-spelled words and/or syntax errors. This is done by re-purposing some
-SGR escape codes that are not used in modern terminals (`CSI codes
-<https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_sequences>`_)
-
-To set the underline style::
-
-    <ESC>[4:0m  # this is no underline
-    <ESC>[4:1m  # this is a straight underline
-    <ESC>[4:2m  # this is a double underline
-    <ESC>[4:3m  # this is a curly underline
-    <ESC>[4:4m  # this is a dotted underline (not implemented in kitty)
-    <ESC>[4:5m  # this is a dashed underline (not implemented in kitty)
-    <ESC>[4m    # this is a straight underline (for backwards compat)
-    <ESC>[24m   # this is no underline (for backwards compat)
-
-To set the underline color (this is reserved and as far as I can tell not actually used for anything)::
-
-    <ESC>[58...m
-
-This works exactly like the codes ``38, 48`` that are used to set foreground and
-background color respectively.
-
-To reset the underline color (also previously reserved and unused)::
-
-    <ESC>[59m
-
-The underline color must remain the same under reverse video, if it has a
-color, if not, it should follow the foreground color.
-
-To detect support for this feature in a terminal emulator, query the terminfo database
-for the ``Su`` boolean capability.
-
-Graphics rendering
----------------------
-
-See :doc:`/graphics-protocol` for a description
-of this protocol to enable drawing of arbitrary raster images in the terminal.
-
-
-.. _extended-key-protocol:
-
-Keyboard handling
--------------------
-
-There are various problems with the current state of keyboard handling. They
-include:
-
-* No way to use modifiers other than ``Ctrl`` and ``Alt``
-
-* No way to reliably use multiple modifier keys, other than, ``Shift+Alt``.
-
-* No way to handle different types of keyboard events, such as press, release or repeat
-
-* No reliable way to distinguish single ``Esc`` keypresses from the start of a
-  escape sequence. Currently, client programs use fragile timing related hacks
-  for this, leading to bugs, for example:
-  `neovim #2035 <https://github.com/neovim/neovim/issues/2035>`_.
-
-There are already two distinct keyboard handling modes, *normal mode* and
-*application mode*. These modes generate different escape sequences for the
-various special keys (arrow keys, function keys, home/end etc.) Most terminals
-start out in normal mode, however, most shell programs like ``bash`` switch them to
-application mode. We propose adding a third mode, named *full mode* that addresses
-the shortcomings listed above.
-
-Switching to the new *full mode* is accomplished using the standard private
-mode DECSET escape sequence::
-
-    <ESC>[?2017h
-
-and to leave *full mode*, use DECRST::
-
-    <ESC>[?2017l
-
-The number ``2017`` above is not used for any existing modes, as far as I know.
-Client programs can query if the terminal emulator is in *full mode* by using
-the standard `DECRQM <https://vt100.net/docs/vt510-rm/DECRQM.html>`_ escape sequence.
-
-The new mode works as follows:
-
-  * All printable key presses without modifier keys are sent just as in the
-    *normal mode*. This means all printable ASCII characters and in addition,
-    ``Enter``, ``Space`` and ``Backspace``. Also any unicode characters generated by
-    platform specific extended input modes, such as using the ``AltGr`` key. This
-    is done so that client programs that are not aware of this mode can still
-    handle basic text entry, so if a *full mode* using program crashes and does
-    not reset, the user can still issue a ``reset`` command in the shell to restore
-    normal key handling. Note that this includes pressing the ``Shift`` modifier
-    and printable keys. Note that this means there are no repeat and release
-    events for these keys and also for the left and right shift keys.
-
-  * For non printable keys and key combinations including one or more modifiers,
-    an escape sequence encoding the key event is sent. For details on the
-    escape sequence, see below.
-
-The escape sequence encodes the following properties:
-
-  * Type of event: ``press,repeat,release``
-  * Modifiers pressed at the time of the event
-  * The actual key being pressed
-
-Schematically::
-
-    <ESC>_K<type><modifiers><key><ESC>\
-
-Where ``<type>`` is one of ``p`` -- press, ``r`` -- release and ``t`` -- repeat.
-Modifiers is a bitmask represented as a single base64 digit.  Shift -- ``0x1``,
-Alt -- ``0x2``, Control -- ``0x4`` and Super -- ``0x8``.  ``<key>`` is a number
-(encoded in base85) corresponding to the key pressed. The key name to number
-mapping is defined in :doc:`this table <key-encoding>`.
-
-Client programs must ignore events for keys they do not know. The mapping in
-the above table is stable and will never change, however, new codes might be
-added to it in the future, for new keys.
-
-For example::
-
-    <ESC>_KpGp<ESC>\  is  <Ctrl>+<Alt>+x (press)
-    <ESC>_KrP8<ESC>\  is  <Ctrl>+<Alt>+<Shift>+<Super>+PageUp (release)
-
-This encoding means each key event is represented by 8 or 9 printable ascii
-only bytes, for maximum robustness.
-
-To see the full mode in action, run::
-
-   kitty +kitten key_demo
-
-Support for this mode is indicated by the ``fullkbd`` boolean capability
-in the terminfo database, in case querying for it via DECQRM is inconvenient.
-
-.. _ext_styles:
-
-Setting text styles/colors in arbitrary regions of the screen
-------------------------------------------------------------------
-
-There already exists an escape code to set *some* text attributes in arbitrary
-regions of the screen, `DECCARA
-<https://vt100.net/docs/vt510-rm/DECCARA.html>`_.  However, it is limited to
-only a few attributes. |kitty| extends this to work with *all* SGR attributes.
-So, for example, this can be used to set the background color in an arbitrary
-region of the screen.
-
-The motivation for this extension is the various problems with the existing
-solution for erasing to background color, namely the *background color erase
-(bce)* capability. See
-`this discussion <https://github.com/kovidgoyal/kitty/issues/160#issuecomment-346470545>`_
-and `this FAQ <https://invisible-island.net/ncurses/ncurses.faq.html#bce_mismatches>`_
-for a summary of problems with *bce*.
-
-For example, to set the background color to blue in a
-rectangular region of the screen from (3, 4) to (10, 11), you use::
-
-    <ESC>[2*x<ESC>[4;3;11;10;44$r<ESC>[*x
-
-
-Saving and restoring the default foreground/background/selection/cursor colors
----------------------------------------------------------------------------------
-
-It is often useful for a full screen application with its own color themes
-to set the default foreground, background, selection and cursor colors. This
-allows for various performance optimizations when drawing the screen. The
-problem is that if the user previously used the escape codes to change these
-colors herself, then running the full screen application will lose her
-changes even after it exits. To avoid this, kitty introduces a new pair of
-*OSC* escape codes to push and pop the current color values from a stack::
-
-    <ESC>]30001<ESC>\  # push onto stack
-    <ESC>]30101<ESC>\  # pop from stack
-
-These escape codes save/restore the so called *dynamic colors*, default
-background, default foreground, selection background, selection foreground and
-cursor color.
-
-
-Pasting to clipboard
-----------------------
-
-|kitty| implements the OSC 52 escape code protocol to get/set the clipboard
-contents (controlled via the :opt:`clipboard_control` setting). There is one
-difference in kitty's implementation compared to some other terminal emulators.
-|kitty| allows sending arbitrary amounts of text to the clipboard. It does so
-by modifying the protocol slightly. Successive OSC 52 escape codes to set the
-clipboard will concatenate, so::
-
-    <ESC>]52;c;<payload1><ESC>\
-    <ESC>]52;c;<payload2><ESC>\
-
-will result in the clipboard having the contents ``payload1 + payload2``. To
-send a new string to the clipboard send an OSC 52 sequence with an invalid payload
-first, for example::
-
-    <ESC>]52;c;!<ESC>\
-
-Here ``!`` is not valid base64 encoded text, so it clears the clipboard.
-Further, since it is invalid, it should be ignored by terminal emulators
-that do not support this extension, thereby making it safe to use, simply
-always send it before starting a new OSC 52 paste, even if you aren't chunking
-up large pastes, that way kitty won't concatenate your paste, and it will have
-no ill-effects in other terminal emulators.
-
-In case you're using software that can't be easily adapted to this
-protocol extension, it can be disabled by specifying ``no-append`` to the
-:opt:`clipboard_control` setting.
-
-
-.. _desktop_notifications:
-
-
-Desktop notifications
----------------------------------
-
-|kitty| implements an extensible escape code (OSC 99) to show desktop
-notifications. It is easy to use from shell scripts and fully extensible to
-show title and body.  Clicking on the notification can optionally focus the
-window it came from, and/or send an escape code back to the application running
-in that window.
-
-The design of the escape code is partially based on the discussion in
-the defunct
-`terminal-wg <https://gitlab.freedesktop.org/terminal-wg/specifications/-/issues/13>`_
-
-The escape code has the form::
-
-    <OSC> 99 ; metadata ; payload <terminator>
-
-Here ``<OSC>`` is :code:`<ESC>]` and ``<terminator>`` is
-:code:`<ESC><backslash>`.  The metadata is a section of colon separated
-:code:`key=value` pairs. Every key must be a single character from the set
-:code:`a-zA-Z` and every value must be a word consisting of characters from
-the set :code:`a-zA-Z0-9-_/\+.,(){}[]*&^%$#@!`~`. The payload must be
-interpreted based on the metadata section. The two semi-colons *must* always be
-present even when no metadata is present.
-
-Before going into details, lets see how one can display a simple, single line
-notification from a shell script::
-
-    printf '\x1b]99;;Hello world\x1b\\'
-
-To show a message with a title and a body::
-
-    printf '\x1b]99;i=1:d=0;Hello world\x1b\\'
-    printf '\x1b]99;i=1:d=1:p=body;This is cool\x1b\\'
-
-The most important key in the metadata is the ``p`` key, it controls how the
-payload is interpreted. A value of ``title`` means the payload is setting the
-title for the notification. A value of ``body`` means it is setting the body,
-and so on, see the table below for full details.
-
-The design of the escape code is fundamentally chunked, this is because
-different terminal emulators have different limits on how large a single escape
-code can be. Chunking is accomplished by the ``i`` and ``d`` keys. The ``i``
-key is the *notification id* which can be any string containing the characters
-``[a-zA-Z0-9_-+.]``. The ``d`` key stands for *done* and
-can only take the values ``0`` and ``1``. A value of ``0`` means the
-notification is not yet done and the terminal emulator should hold off
-displaying it. A value of ``1`` means the notification is done, and should be
-displayed. You can specify the title or body multiple times and the terminal
-emulator will concatenate them, thereby allowing arbitrarily long text
-(terminal emulators are free to impose a sensible limit to avoid
-Denial-of-Service attacks).
-
-Both the ``title`` and ``body`` payloads must be either UTF-8 encoded plain
-text with no embedded escape codes, or UTF-8 text that is base64 encoded, in
-which case there must be an ``e=1`` key in the metadata to indicate the payload
-is base64 encoded.
-
-When the user clicks the notification, a couple of things can happen, the
-terminal emulator can focus the window from which the notification came, and/or
-it can send back an escape code to the application indicating the notification
-was activated. This is controlled by the ``a`` key which takes a comma
-separated set of values, ``report`` and ``focus``. The value ``focus`` means
-focus the window from which the notification was issued and is the default.
-``report`` means send an escape code back to the application. The format of the
-returned escape code is::
-
-    <OSC> 99 ; i=identifier ; <terminator>
-
-The value of ``identifier`` comes from the ``i`` key in the escape code sent by
-the application. If the application sends no identifier, then the terminal
-*must* use ``i=0``. Actions can be preceded by a negative sign to turn them
-off, so for example if you do not want any action, turn off the default
-``focus`` action with::
-
-    a=-focus
-
-Complete specification of all the metadata keys is in the table below. If a
-terminal emulator encounters a key in the metadata it does not understand,
-the key *must* be ignored, to allow for future extensibility of this escape
-code. Similarly if values for known keys are unknown, the terminal emulator
-*should* either ignore the entire escape code or perform a best guess effort
-to display it based on what it does understand.
-
-.. note::
-   It is possible to extend this escape code to allow specifying an icon for
-   the notification, however, given that some platforms, such as macOS, dont
-   allow displaying custom icons on a notification, at all, it was decided to
-   leave it out of the spec for the time being.
-
-   Similarly, features such as scheduled notifications could be added in future
-   revisions.
-
-
-=======  ====================  =========  =================
-Key      Value                 Default    Description
-=======  ====================  =========  =================
-``a``    Comma separated list  ``focus``  What action to perform when the
-         of ``report``,                   notification is clicked
-         ``focus``, with
-         optional leading
-         ``-``
-
-``d``    ``0`` or ``1``        ``1``      Indicates if the notification is
-                                          complete or not.
-
-``e``    ``0`` or ``1``        ``0``      If set to ``1`` means the payload is base64 encoded UTF-8,
-                                          otherwise it is plain UTF-8 text with no C0 control codes in it
-
-``i``    ``[a-zA-Z0-9-_+.]``   ``0``      Identifier for the notification
-
-``p``    One of ``title`` or   ``title``  Whether the payload is the notification title or body. If a
-         ``body``.                        notification has no title, the body will be used as title.
-=======  ====================  =========  =================
-
-
-.. note::
-   |kitty| also supports the legacy OSC 9 protocol developed by iTerm2 for
-   desktop notifications.
+   underlines
+   graphics-protocol
+   keyboard-protocol
+   desktop-notifications
+   unscroll
+   color-stack
+   deccara

docs/quickstart.rst

@@ -0,0 +1,28 @@
+.. _quickstart:
+
+Quickstart
+===========
+
+.. toctree::
+   :hidden:
+
+   binary
+   build
+
+Pre-built binaries of |kitty| are available for both macOS and Linux.
+See the :doc:`binary install instructions </binary>`. You can also
+:doc:`build from source </build>`.
+
+Additionally, you can use your favorite package manager to install the |kitty|
+package, but note that some Linux distribution packages are woefully outdated.
+|kitty| is available in a vast number of package repositories for macOS
+and Linux.
+
+.. image:: https://repology.org/badge/tiny-repos/kitty.svg
+   :target: https://repology.org/project/kitty/versions
+   :alt: Number of repositories kitty is available in
+
+See :doc:`Configuring kitty <conf>` for help on configuring |kitty| and
+:doc:`Invocation <invocation>` for the command line arguments |kitty| supports.
+
+For a tour of kitty's design and features, see the :doc:`/overview`.

docs/rc_protocol.rst

@@ -1,5 +1,5 @@
-Documentation for the kitty remote control protocol
-======================================================
+The kitty remote control protocol
+==================================
 
 The kitty remote control protocol is a simple protocol that involves sending
 data to kitty in the form of JSON. Any individual command of kitty has the
@@ -12,7 +12,7 @@ Where ``<ESC>`` is the byte ``0x1b``. The JSON object has the form::
     {
         "cmd": "command name",
         "version": <kitty version>,
-        "no_response": Optional Boolean,
+        "no_response": <Optional Boolean>,
         "payload": <Optional JSON object>,
     }
 
@@ -26,4 +26,15 @@ Set ``no_response`` to ``true`` if you don't want a response from kitty.
 The optional payload is a JSON object that is specific to the actual command being sent.
 The fields in the object for every command are documented below.
 
+As a quick example showing how easy to use this protocol is, we will implement
+the ``@ ls`` command from the shell using only shell tools. First, run kitty
+as::
+
+    kitty -o allow_remote_control=socket-only --listen-on unix:/tmp/test
+
+Now, in a different terminal, you can get the pretty printed ``@ ls`` output
+with the following command line::
+
+    echo -en '\eP@kitty-cmd{"cmd":"ls","version":[0,14,2]}\e\' | socat - unix:/tmp/test | awk '{ print substr($0, 13, length($0) - 14) }' | jq -c '.data | fromjson' | jq .
+
 .. include:: generated/rc.rst

docs/remote-control.rst

@@ -1,17 +1,15 @@
-:tocdepth: 2
-
-Controlling kitty from scripts or the shell
-==============================================
+Control kitty from scripts
+----------------------------
 
 .. highlight:: sh
 
-Tutorial
-----------
-
 |kitty| can be controlled from scripts or the shell prompt. You can open new
 windows, send arbitrary text input to any window, name windows and tabs, etc.
 Let's walk through a few examples of controlling |kitty|.
 
+Tutorial
+------------
+
 Start by running |kitty| as::
 
     kitty -o allow_remote_control=yes -o enabled_layouts=tall
@@ -115,8 +113,10 @@ shell. Run ``kitty @`` with no arguments and you will be dropped into the |kitty
 shell with completion for |kitty| command names and options.
 
 You can even open the |kitty| shell inside a running |kitty| using a simple
-keyboard shortcut (:sc:`kitty_shell` by default). This has the added
-advantage that you don't need to use ``allow_remote_control`` to make it work.
+keyboard shortcut (:sc:`kitty_shell` by default).
+
+.. note:: This has the added advantage that you don't need to use
+   ``allow_remote_control`` to make it work.
 
 
 Allowing only some windows to control kitty
@@ -134,6 +134,14 @@ still write to the pipes of any other program on the same computer and
 therefore can control |kitty|. It can, however, be useful to block programs
 running on other computers (for example, over ssh) or as other users.
 
+.. note:: You dont need ``allow_remote_control`` to make this work as it is
+   limited to only programs running in that specific window. Be careful with
+   what programs you run in such windows, since they can effectively control
+   kitty, as if you were running with ``allow_remote_control`` turned on.
+
+
+.. _rc_mapping:
+
 Mapping key presses to remote control commands
 --------------------------------------------------
 
@@ -146,11 +154,33 @@ Then pressing the :kbd:`F1` key will set the active window margins to 30.
 The syntax for what follows :code:`remote_control` is exactly the same
 as the syntax for what follows :code:`kitty @` above.
 
+.. note:: You do not need ``allow_remote_control`` to use these mappings,
+   as they are not actual remote programs, but are simply a way to resuse
+   the remote control infrastructure via keybings.
 
-Documentation for the remote control protocol
+
+Broadcasting what you type to all kitty windows
+--------------------------------------------------
+
+As a simple illustration of the power of remote control, lets
+have what we type sent to all open kitty windows. To do that define the
+following mapping in :file:`kitty.conf`::
+
+    map F1 launch --allow-remote-control kitty +kitten broadcast
+
+Now press, F1 and start typing, what you type will be sent to all windows,
+live, as you type it.
+
+
+The remote control protocol
 -----------------------------------------------
 
 If you wish to develop your own client to talk to |kitty|, you
-can use the :doc:`rc_protocol`.
+can use the :doc:`protocol specification <rc_protocol>`.
+
+.. toctree::
+   :hidden:
+
+   rc_protocol
 
 .. include:: generated/cli-kitty-at.rst

docs/requirements.txt

@@ -0,0 +1,5 @@
+sphinx
+furo
+sphinx-copybutton
+sphinxext-opengraph
+sphinx-inline-tabs

docs/underlines.rst

@@ -0,0 +1,36 @@
+Colored and styled underlines
+================================
+
+|kitty| supports colored and styled (wavy) underlines. This is of particular
+use in terminal editors such as vim and emacs to display red, wavy underlines
+under mis-spelled words and/or syntax errors. This is done by re-purposing some
+SGR escape codes that are not used in modern terminals (`CSI codes
+<https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_(Control_Sequence_Introducer)_sequences>`_)
+
+To set the underline style::
+
+    <ESC>[4:0m  # this is no underline
+    <ESC>[4:1m  # this is a straight underline
+    <ESC>[4:2m  # this is a double underline
+    <ESC>[4:3m  # this is a curly underline
+    <ESC>[4:4m  # this is a dotted underline (not implemented in kitty)
+    <ESC>[4:5m  # this is a dashed underline (not implemented in kitty)
+    <ESC>[4m    # this is a straight underline (for backwards compat)
+    <ESC>[24m   # this is no underline (for backwards compat)
+
+To set the underline color (this is reserved and as far as I can tell not actually used for anything)::
+
+    <ESC>[58...m
+
+This works exactly like the codes ``38, 48`` that are used to set foreground and
+background color respectively.
+
+To reset the underline color (also previously reserved and unused)::
+
+    <ESC>[59m
+
+The underline color must remain the same under reverse video, if it has a
+color, if not, it should follow the foreground color.
+
+To detect support for this feature in a terminal emulator, query the terminfo database
+for the ``Su`` boolean capability.

docs/unscroll.rst

@@ -0,0 +1,34 @@
+.. _unscroll:
+
+Unscrolling the screen
+========================
+
+This is a small extension to the `SD (Pan up) escape code
+<https://vt100.net/docs/vt510-rm/SD.html>`_ from the VT-420 terminal. The
+``SD`` escape code normally causes the text on screen to scroll down by the
+specified number of lines, with empty lines appearing at the top of the screen.
+This extension allows the new lines to be filled in from the scrollback buffer
+instead of being blank.
+
+The motivation for this is that many modern shells will show completions in a
+block of lines under the cursor, this causes some of the on-screen text to be
+lost even after the completion is completed, because it has scrolled off
+screen. This escape code allows that text to be restored.
+
+If the scrollback buffer is empty or there is no scrollback buffer, such as for
+the alternate screen, then the newly inserted lines must be empty, just as with
+the original ``SD`` escape code. The maximum number of lines that can be
+scrolled down is implementation defined, but must be at least one screen worth.
+
+The syntax of the escape code is identical to that of ``SD`` except that it has
+a trailing ``+`` modifier. This is legal under the `ECMA 48 standard
+<https://www.ecma-international.org/publications-and-standards/standards/ecma-48/>`_
+and unused for any other purpose as far as I can tell. So for example, to
+unscroll three lines, the escape code would be::
+
+    CSI 3 + T
+
+See `discussion here
+<https://gitlab.freedesktop.org/terminal-wg/specifications/-/issues/30>`_.
+
+.. versionadded:: 0.20.2

gen-apc-parsers.py

@@ -250,13 +250,16 @@ def write_header(text: str, path: str) -> None:
 def graphics_parser() -> None:
     flag = frozenset
     keymap: KeymapType = {
-        'a': ('action', flag('tTqpd')),
-        'd': ('delete_action', flag('aAiIcCpPqQxXyYzZ')),
+        'a': ('action', flag('tTqpdfac')),
+        'd': ('delete_action', flag('aAiIcCfFnNpPqQxXyYzZ')),
         't': ('transmission_type', flag('dfts')),
         'o': ('compressed', flag('z')),
         'f': ('format', 'uint'),
         'm': ('more', 'uint'),
         'i': ('id', 'uint'),
+        'I': ('image_number', 'uint'),
+        'p': ('placement_id', 'uint'),
+        'q': ('quiet', 'uint'),
         'w': ('width', 'uint'),
         'h': ('height', 'uint'),
         'x': ('x_offset', 'uint'),
@@ -270,6 +273,7 @@ def graphics_parser() -> None:
         'X': ('cell_x_offset', 'uint'),
         'Y': ('cell_y_offset', 'uint'),
         'z': ('z_index', 'int'),
+        'C': ('cursor_movement', 'uint'),
     }
     text = generate('parse_graphics_code', 'screen_handle_graphics_command', 'graphics_command', keymap, 'GraphicsCommand')
     write_header(text, 'kitty/parse-graphics-command.h')

gen-config.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+# vim:fileencoding=utf-8
+# License: GPLv3 Copyright: 2021, Kovid Goyal <kovid at kovidgoyal.net>
+
+
+from kitty.conf.generate import write_output
+
+
+def main() -> None:
+    from kitty.options.definition import definition
+    write_output('kitty', definition)
+    from kittens.diff.options.definition import definition as kd
+    write_output('kittens.diff', kd)
+
+
+if __name__ == '__main__':
+    main()

gen-key-constants.py

@@ -0,0 +1,412 @@
+#!/usr/bin/env python
+# vim:fileencoding=utf-8
+# License: GPLv3 Copyright: 2021, Kovid Goyal <kovid at kovidgoyal.net>
+
+import string
+from typing import Dict, List, Any
+from pprint import pformat
+
+functional_key_defs = '''# {{{
+# kitty                     XKB                         macVK  macU
+escape                      Escape                      0x35   -
+enter                       Return                      0x24   NSCarriageReturnCharacter
+tab                         Tab                         0x30   NSTabCharacter
+backspace                   BackSpace                   0x33   NSBackspaceCharacter
+insert                      Insert                      0x72   Insert
+delete                      Delete                      0x75   Delete
+left                        Left                        0x7B   LeftArrow
+right                       Right                       0x7C   RightArrow
+up                          Up                          0x7E   UpArrow
+down                        Down                        0x7D   DownArrow
+page_up                     Page_Up                     0x74   PageUp
+page_down                   Page_Down                   0x79   PageDown
+home                        Home                        0x73   Home
+end                         End                         0x77   End
+caps_lock                   Caps_Lock                   0x39   -
+scroll_lock                 Scroll_Lock                 -      ScrollLock
+num_lock                    Num_Lock                    0x47   ClearLine
+print_screen                Print                       -      PrintScreen
+pause                       Pause                       -      Pause
+menu                        Menu                        0x6E   Menu
+f1                          F1                          0x7A   F1
+f2                          F2                          0x78   F2
+f3                          F3                          0x63   F3
+f4                          F4                          0x76   F4
+f5                          F5                          0x60   F5
+f6                          F6                          0x61   F6
+f7                          F7                          0x62   F7
+f8                          F8                          0x64   F8
+f9                          F9                          0x65   F9
+f10                         F10                         0x6D   F10
+f11                         F11                         0x67   F11
+f12                         F12                         0x6F   F12
+f13                         F13                         0x69   F13
+f14                         F14                         0x6B   F14
+f15                         F15                         0x71   F15
+f16                         F16                         0x6A   F16
+f17                         F17                         0x40   F17
+f18                         F18                         0x4F   F18
+f19                         F19                         0x50   F19
+f20                         F20                         0x5A   F20
+f21                         F21                         -      F21
+f22                         F22                         -      F22
+f23                         F23                         -      F23
+f24                         F24                         -      F24
+f25                         F25                         -      F25
+f26                         F26                         -      F26
+f27                         F27                         -      F27
+f28                         F28                         -      F28
+f29                         F29                         -      F29
+f30                         F30                         -      F30
+f31                         F31                         -      F31
+f32                         F32                         -      F32
+f33                         F33                         -      F33
+f34                         F34                         -      F34
+f35                         F35                         -      F35
+kp_0                        KP_0                        0x52   -
+kp_1                        KP_1                        0x53   -
+kp_2                        KP_2                        0x54   -
+kp_3                        KP_3                        0x55   -
+kp_4                        KP_4                        0x56   -
+kp_5                        KP_5                        0x57   -
+kp_6                        KP_6                        0x58   -
+kp_7                        KP_7                        0x59   -
+kp_8                        KP_8                        0x5B   -
+kp_9                        KP_9                        0x5C   -
+kp_decimal                  KP_Decimal                  0x41   -
+kp_divide                   KP_Divide                   0x4B   -
+kp_multiply                 KP_Multiply                 0x43   -
+kp_subtract                 KP_Subtract                 0x4E   -
+kp_add                      KP_Add                      0x45   -
+kp_enter                    KP_Enter                    0x4C   NSEnterCharacter
+kp_equal                    KP_Equal                    0x51   -
+kp_separator                KP_Separator                -      -
+kp_left                     KP_Left                     -      -
+kp_right                    KP_Right                    -      -
+kp_up                       KP_Up                       -      -
+kp_down                     KP_Down                     -      -
+kp_page_up                  KP_Page_Up                  -      -
+kp_page_down                KP_Page_Down                -      -
+kp_home                     KP_Home                     -      -
+kp_end                      KP_End                      -      -
+kp_insert                   KP_Insert                   -      -
+kp_delete                   KP_Delete                   -      -
+kp_begin                    KP_Begin                    -      -
+media_play                  XF86AudioPlay               -      -
+media_pause                 XF86AudioPause              -      -
+media_play_pause            -                           -      -
+media_reverse               -                           -      -
+media_stop                  XF86AudioStop               -      -
+media_fast_forward          XF86AudioForward            -      -
+media_rewind                XF86AudioRewind             -      -
+media_track_next            XF86AudioNext               -      -
+media_track_previous        XF86AudioPrev               -      -
+media_record                XF86AudioRecord             -      -
+lower_volume                XF86AudioLowerVolume        -      -
+raise_volume                XF86AudioRaiseVolume        -      -
+mute_volume                 XF86AudioMute               -      -
+left_shift                  Shift_L                     0x38   -
+left_control                Control_L                   0x3B   -
+left_alt                    Alt_L                       0x3A   -
+left_super                  Super_L                     0x37   -
+left_hyper                  Hyper_L                     -      -
+left_meta                   Meta_L                      -      -
+right_shift                 Shift_R                     0x3C   -
+right_control               Control_R                   0x3E   -
+right_alt                   Alt_R                       0x3D   -
+right_super                 Super_R                     0x36   -
+right_hyper                 Hyper_R                     -      -
+right_meta                  Meta_R                      -      -
+iso_level3_shift            ISO_Level3_Shift            -      -
+iso_level5_shift            ISO_Level5_Shift            -      -
+'''  # }}}
+
+shift_map = {x[0]: x[1] for x in '`~ 1! 2@ 3# 4$ 5% 6^ 7& 8* 9( 0) -_ =+ [{ ]} \\| ;: \'" ,< .> /?'.split()}
+shift_map.update({x: x.upper() for x in string.ascii_lowercase})
+functional_encoding_overrides = {
+    'insert': 2, 'delete': 3, 'page_up': 5, 'page_down': 6,
+    'home': 7, 'end': 8, 'tab': 9, 'f1': 11, 'f2': 12, 'f3': 13, 'enter': 13, 'f4': 14,
+    'f5': 15, 'f6': 17, 'f7': 18, 'f8': 19, 'f9': 20, 'f10': 21,
+    'f11': 23, 'f12': 24, 'escape': 27, 'backspace': 127
+}
+different_trailer_functionals = {
+    'up': 'A', 'down': 'B', 'right': 'C', 'left': 'D', 'kp_begin': 'E', 'end': 'F', 'home': 'H',
+    'f1': 'P', 'f2': 'Q', 'f3': 'R', 'f4': 'S', 'enter': 'u', 'tab': 'u',
+    'backspace': 'u', 'escape': 'u'
+}
+
+macos_ansi_key_codes = {  # {{{
+    0x1D: ord('0'),
+    0x12: ord('1'),
+    0x13: ord('2'),
+    0x14: ord('3'),
+    0x15: ord('4'),
+    0x17: ord('5'),
+    0x16: ord('6'),
+    0x1A: ord('7'),
+    0x1C: ord('8'),
+    0x19: ord('9'),
+    0x00: ord('a'),
+    0x0B: ord('b'),
+    0x08: ord('c'),
+    0x02: ord('d'),
+    0x0E: ord('e'),
+    0x03: ord('f'),
+    0x05: ord('g'),
+    0x04: ord('h'),
+    0x22: ord('i'),
+    0x26: ord('j'),
+    0x28: ord('k'),
+    0x25: ord('l'),
+    0x2E: ord('m'),
+    0x2D: ord('n'),
+    0x1F: ord('o'),
+    0x23: ord('p'),
+    0x0C: ord('q'),
+    0x0F: ord('r'),
+    0x01: ord('s'),
+    0x11: ord('t'),
+    0x20: ord('u'),
+    0x09: ord('v'),
+    0x0D: ord('w'),
+    0x07: ord('x'),
+    0x10: ord('y'),
+    0x06: ord('z'),
+
+    0x27: ord('\''),
+    0x2A: ord('\\'),
+    0x2B: ord(','),
+    0x18: ord('='),
+    0x32: ord('`'),
+    0x21: ord('['),
+    0x1B: ord('-'),
+    0x2F: ord('.'),
+    0x1E: ord(']'),
+    0x29: ord(';'),
+    0x2C: ord('/'),
+    0x31: ord(' '),
+}  # }}}
+
+functional_key_names: List[str] = []
+name_to_code: Dict[str, int] = {}
+name_to_xkb: Dict[str, str] = {}
+name_to_vk: Dict[str, int] = {}
+name_to_macu: Dict[str, str] = {}
+start_code = 0xe000
+for line in functional_key_defs.splitlines():
+    line = line.strip()
+    if not line or line.startswith('#'):
+        continue
+    parts = line.split()
+    name = parts[0]
+    functional_key_names.append(name)
+    name_to_code[name] = len(name_to_code) + start_code
+    if parts[1] != '-':
+        name_to_xkb[name] = parts[1]
+    if parts[2] != '-':
+        name_to_vk[name] = int(parts[2], 16)
+    if parts[3] != '-':
+        val = parts[3]
+        if not val.startswith('NS'):
+            val = f'NS{val}FunctionKey'
+        name_to_macu[name] = val
+last_code = start_code + len(functional_key_names) - 1
+ctrl_mapping = {
+    ' ': 0, '@': 0, 'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5, 'f': 6, 'g': 7,
+    'h': 8, 'i': 9, 'j': 10, 'k': 11, 'l': 12, 'm': 13, 'n': 14, 'o': 15, 'p': 16,
+    'q': 17, 'r': 18, 's': 19, 't': 20, 'u': 21, 'v': 22, 'w': 23, 'x': 24,
+    'y': 25, 'z': 26, '[': 27, '\\': 28, ']': 29, '^': 30, '~': 30, '/': 31,
+    '_': 31, '?': 127, '0': 48, '1': 49, '2': 0, '3': 27, '4': 28,
+    '5': 29, '6': 30, '7': 31, '8': 127, '9': 57
+}
+
+
+def patch_file(path: str, what: str, text: str, start_marker: str = '/* ', end_marker: str = ' */') -> None:
+    simple_start_q = f'{start_marker}start {what}{end_marker}'
+    start_q = f'{start_marker}start {what} (auto generated by gen-key-constants.py do not edit){end_marker}'
+    end_q = f'{start_marker}end {what}{end_marker}'
+
+    with open(path, 'r+') as f:
+        raw = f.read()
+        try:
+            start = raw.index(start_q)
+        except ValueError:
+            try:
+                start = raw.index(simple_start_q)
+            except ValueError:
+                raise SystemExit(f'Failed to find "{simple_start_q}" in {path}')
+        try:
+            end = raw.index(end_q)
+        except ValueError:
+            raise SystemExit(f'Failed to find "{end_q}" in {path}')
+        raw = raw[:start] + start_q + '\n' + text + '\n' + raw[end:]
+        f.seek(0)
+        f.truncate(0)
+        f.write(raw)
+
+
+def serialize_dict(x: dict) -> str:
+    return pformat(x, indent=4).replace('{', '{\n ', 1)
+
+
+def generate_glfw_header() -> None:
+    lines = [
+        'typedef enum {',
+        f'  GLFW_FKEY_FIRST = 0x{start_code:x}u,',
+    ]
+    klines, pyi, names, knames = [], [], [], []
+    for name, code in name_to_code.items():
+        lines.append(f'  GLFW_FKEY_{name.upper()} = 0x{code:x}u,')
+        klines.append(f'    ADDC(GLFW_FKEY_{name.upper()});')
+        pyi.append(f'GLFW_FKEY_{name.upper()}: int')
+        names.append(f'    case GLFW_FKEY_{name.upper()}: return "{name.upper()}";')
+        knames.append(f'            case GLFW_FKEY_{name.upper()}: return PyUnicode_FromString("{name}");')
+    lines.append(f'  GLFW_FKEY_LAST = 0x{last_code:x}u')
+    lines.append('} GLFWFunctionKey;')
+    patch_file('glfw/glfw3.h', 'functional key names', '\n'.join(lines))
+    patch_file('kitty/glfw.c', 'glfw functional keys', '\n'.join(klines))
+    patch_file('kitty/fast_data_types.pyi', 'glfw functional keys', '\n'.join(pyi), start_marker='# ', end_marker='')
+    patch_file('glfw/input.c', 'functional key names', '\n'.join(names))
+    patch_file('kitty/glfw.c', 'glfw functional key names', '\n'.join(knames))
+
+
+def generate_xkb_mapping() -> None:
+    lines, rlines = [], []
+    for name, xkb in name_to_xkb.items():
+        lines.append(f'        case XKB_KEY_{xkb}: return GLFW_FKEY_{name.upper()};')
+        rlines.append(f'        case GLFW_FKEY_{name.upper()}: return XKB_KEY_{xkb};')
+    patch_file('glfw/xkb_glfw.c', 'xkb to glfw', '\n'.join(lines))
+    patch_file('glfw/xkb_glfw.c', 'glfw to xkb', '\n'.join(rlines))
+
+
+def generate_functional_table() -> None:
+    lines = [
+        '',
+        '.. csv-table:: Functional key codes',
+        '   :header: "Name", "CSI", "Name", "CSI"',
+        ''
+    ]
+    line_items = []
+    enc_lines = []
+    tilde_trailers = set()
+    for name, code in name_to_code.items():
+        if name in functional_encoding_overrides or name in different_trailer_functionals:
+            trailer = different_trailer_functionals.get(name, '~')
+            if trailer == '~':
+                tilde_trailers.add(code)
+            code = oc = functional_encoding_overrides.get(name, code)
+            code = code if trailer in '~u' else 1
+            enc_lines.append((' ' * 8) + f"case GLFW_FKEY_{name.upper()}: S({code}, '{trailer}');")
+            if code == 1 and name not in ('up', 'down', 'left', 'right'):
+                trailer += f' or {oc} ~'
+        else:
+            trailer = 'u'
+        line_items.append(name.upper())
+        line_items.append(f'``{code}\xa0{trailer}``')
+    for li in chunks(line_items, 4):
+        lines.append('   ' + ', '.join(f'"{x}"' for x in li))
+    lines.append('')
+    patch_file('docs/keyboard-protocol.rst', 'functional key table', '\n'.join(lines), start_marker='.. ', end_marker='')
+    patch_file('kitty/key_encoding.c', 'special numbers', '\n'.join(enc_lines))
+    code_to_name = {v: k.upper() for k, v in name_to_code.items()}
+    csi_map = {v: name_to_code[k] for k, v in functional_encoding_overrides.items()}
+    letter_trailer_codes = {
+        v: functional_encoding_overrides.get(k, name_to_code.get(k))
+        for k, v in different_trailer_functionals.items() if v in 'ABCDEHFPQRSZ'}
+    text = f'functional_key_number_to_name_map = {serialize_dict(code_to_name)}'
+    text += f'\ncsi_number_to_functional_number_map = {serialize_dict(csi_map)}'
+    text += f'\nletter_trailer_to_csi_number_map = {letter_trailer_codes!r}'
+    text += f'\ntilde_trailers = {tilde_trailers!r}'
+    patch_file('kitty/key_encoding.py', 'csi mapping', text, start_marker='# ', end_marker='')
+
+
+def generate_legacy_text_key_maps() -> None:
+    tests = []
+    tp = ' ' * 8
+    shift, alt, ctrl = 1, 2, 4
+
+    def simple(c: str) -> None:
+        shifted = shift_map.get(c, c)
+        ctrled = chr(ctrl_mapping.get(c, ord(c)))
+        call = f'enc(ord({c!r}), shifted_key=ord({shifted!r})'
+        for m in range(16):
+            if m == 0:
+                tests.append(f'{tp}ae({call}), {c!r})')
+            elif m == shift:
+                tests.append(f'{tp}ae({call}, mods=shift), {shifted!r})')
+            elif m == alt:
+                tests.append(f'{tp}ae({call}, mods=alt), "\\x1b" + {c!r})')
+            elif m == ctrl:
+                tests.append(f'{tp}ae({call}, mods=ctrl), {ctrled!r})')
+            elif m == shift | alt:
+                tests.append(f'{tp}ae({call}, mods=shift | alt), "\\x1b" + {shifted!r})')
+            elif m == ctrl | alt:
+                tests.append(f'{tp}ae({call}, mods=ctrl | alt), "\\x1b" + {ctrled!r})')
+
+    for k in shift_map:
+        simple(k)
+
+    patch_file('kitty_tests/keys.py', 'legacy letter tests', '\n'.join(tests), start_marker='# ', end_marker='')
+
+
+def chunks(lst: List, n: int) -> Any:
+    """Yield successive n-sized chunks from lst."""
+    for i in range(0, len(lst), n):
+        yield lst[i:i + n]
+
+
+def generate_ctrl_mapping() -> None:
+    lines = [
+        '.. csv-table:: Emitted bytes when :kbd:`ctrl` is held down and a key is pressed',
+        '   :header: "Key", "Byte", "Key", "Byte", "Key", "Byte"',
+        ''
+    ]
+    items = []
+    mi = []
+    for k in sorted(ctrl_mapping):
+        prefix = '\\' if k == '\\' else ('SPC' if k == ' ' else '')
+        items.append(prefix + k)
+        val = str(ctrl_mapping[k])
+        items.append(val)
+        if k in "\\'":
+            k = '\\' + k
+        mi.append(f"        case '{k}': return {val};")
+
+    for line_items in chunks(items, 6):
+        lines.append('   ' + ', '.join(f'"{x}"' for x in line_items))
+    lines.append('')
+    patch_file('docs/keyboard-protocol.rst', 'ctrl mapping', '\n'.join(lines), start_marker='.. ', end_marker='')
+    patch_file('kitty/key_encoding.c', 'ctrl mapping', '\n'.join(mi))
+
+
+def generate_macos_mapping() -> None:
+    lines = []
+    for k in sorted(macos_ansi_key_codes):
+        v = macos_ansi_key_codes[k]
+        lines.append(f'        case 0x{k:x}: return 0x{v:x};')
+    patch_file('glfw/cocoa_window.m', 'vk to unicode', '\n'.join(lines))
+    lines = []
+    for name, vk in name_to_vk.items():
+        lines.append(f'        case 0x{vk:x}: return GLFW_FKEY_{name.upper()};')
+    patch_file('glfw/cocoa_window.m', 'vk to functional', '\n'.join(lines))
+    lines = []
+    for name, mac in name_to_macu.items():
+        lines.append(f'        case {mac}: return GLFW_FKEY_{name.upper()};')
+    patch_file('glfw/cocoa_window.m', 'macu to functional', '\n'.join(lines))
+    lines = []
+    for name, mac in name_to_macu.items():
+        lines.append(f'        case GLFW_FKEY_{name.upper()}: return {mac};')
+    patch_file('glfw/cocoa_window.m', 'functional to macu', '\n'.join(lines))
+
+
+def main() -> None:
+    generate_glfw_header()
+    generate_xkb_mapping()
+    generate_functional_table()
+    generate_legacy_text_key_maps()
+    generate_ctrl_mapping()
+    generate_macos_mapping()
+
+
+if __name__ == '__main__':
+    main()

gen-wcwidth.py

@@ -114,6 +114,7 @@ def parse_ucd() -> None:
     word_search_map['bee'] |= word_search_map['honeybee']
     word_search_map['lambda'] |= word_search_map['lamda']
     word_search_map['lamda'] |= word_search_map['lambda']
+    word_search_map['diamond'] |= word_search_map['gem']
 
 
 def parse_range_spec(spec: str) -> Set[int]:
@@ -387,7 +388,8 @@ def gen_ucd() -> None:
                 rmap[0xfe0e], rmap[0xfe0f]
             ))
     with open('kittens/hints/url_regex.py', 'w') as f:
-        f.write("url_delimiters = '{}'  # noqa".format(''.join(classes_to_regex(cz, exclude='\n'))))
+        f.write('# generated by gen-wcwidth.py, do not edit\n\n')
+        f.write("url_delimiters = '{}'  # noqa".format(''.join(classes_to_regex(cz, exclude='\n\r'))))
 
 
 def gen_names() -> None:
@@ -504,7 +506,7 @@ def gen_wcwidth() -> None:
         p('\t\t// }}}\n')
 
     with create_header('kitty/wcwidth-std.h') as p:
-        p('static int\nwcwidth_std(int32_t code) {')
+        p('static inline int\nwcwidth_std(int32_t code) {')
         p('\tif (LIKELY(0x20 <= code && code <= 0x7e)) return 1;')
         p('\tswitch(code) {')
 

glfw/backend_utils.c

@@ -8,6 +8,7 @@
 #define _GNU_SOURCE
 #include "backend_utils.h"
 #include "internal.h"
+#include "memfd.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -350,3 +351,72 @@ GLFWAPI char* utf_8_strndup(const char* source, size_t max_length) {
     result[length] = 0;
     return result;
 }
+
+/*
+ * Create a new, unique, anonymous file of the given size, and
+ * return the file descriptor for it. The file descriptor is set
+ * CLOEXEC. The file is immediately suitable for mmap()'ing
+ * the given size at offset zero.
+ *
+ * The file should not have a permanent backing store like a disk,
+ * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
+ *
+ * The file name is deleted from the file system.
+ *
+ * The file is suitable for buffer sharing between processes by
+ * transmitting the file descriptor over Unix sockets using the
+ * SCM_RIGHTS methods.
+ *
+ * posix_fallocate() is used to guarantee that disk space is available
+ * for the file at the given size. If disk space is insufficient, errno
+ * is set to ENOSPC. If posix_fallocate() is not supported, program may
+ * receive SIGBUS on accessing mmap()'ed file contents instead.
+ */
+int createAnonymousFile(off_t size) {
+    int ret, fd = -1, shm_anon = 0;
+#ifdef HAS_MEMFD_CREATE
+    fd = glfw_memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
+    if (fd < 0) return -1;
+    // We can add this seal before calling posix_fallocate(), as the file
+    // is currently zero-sized anyway.
+    //
+    // There is also no need to check for the return value, we couldn’t do
+    // anything with it anyway.
+    fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
+#elif defined(SHM_ANON)
+    fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
+    if (fd < 0) return -1;
+    shm_anon = 1;
+#else
+    static const char template[] = "/glfw-shared-XXXXXX";
+    const char* path;
+    char* name;
+
+    path = getenv("XDG_RUNTIME_DIR");
+    if (!path)
+    {
+        errno = ENOENT;
+        return -1;
+    }
+
+    name = calloc(strlen(path) + sizeof(template), 1);
+    strcpy(name, path);
+    strcat(name, template);
+
+    fd = createTmpfileCloexec(name);
+
+    free(name);
+
+    if (fd < 0)
+        return -1;
+#endif
+    // posix_fallocate does not work on SHM descriptors
+    ret = shm_anon ? ftruncate(fd, size) : posix_fallocate(fd, 0, size);
+    if (ret != 0)
+    {
+        close(fd);
+        errno = ret;
+        return -1;
+    }
+    return fd;
+}

glfw/backend_utils.h

@@ -1,7 +1,7 @@
 //========================================================================
-// GLFW 3.4 Wayland - www.glfw.org
+// GLFW 3.4
 //------------------------------------------------------------------------
-// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+// Copyright (c) 2014 Kovid Goyal
 //
 // This software is provided 'as-is', without any express or implied
 // warranty. In no event will the authors be held liable for any damages
@@ -29,6 +29,7 @@
 #include <poll.h>
 #include <unistd.h>
 #include <stdbool.h>
+#include <sys/types.h>
 
 #ifdef __has_include
 #if __has_include(<sys/eventfd.h>)
@@ -96,3 +97,4 @@ void finalizePollData(EventLoopData *eld);
 bool initPollData(EventLoopData *eld, int display_fd);
 void wakeupEventLoop(EventLoopData *eld);
 char* utf_8_strndup(const char* source, size_t max_length);
+int createAnonymousFile(off_t size);

glfw/cocoa_init.m

@@ -175,138 +175,6 @@ static void createMenuBar(void)
     [NSApp performSelector:setAppleMenuSelector withObject:appMenu];
 }
 
-// Create key code translation tables
-//
-static void createKeyTables(void)
-{
-    int keycode;
-
-    memset(_glfw.ns.keycodes, -1, sizeof(_glfw.ns.keycodes));
-    memset(_glfw.ns.key_to_keycode, -1, sizeof(_glfw.ns.key_to_keycode));
-
-    _glfw.ns.keycodes[0x1D] = GLFW_KEY_0;
-    _glfw.ns.keycodes[0x12] = GLFW_KEY_1;
-    _glfw.ns.keycodes[0x13] = GLFW_KEY_2;
-    _glfw.ns.keycodes[0x14] = GLFW_KEY_3;
-    _glfw.ns.keycodes[0x15] = GLFW_KEY_4;
-    _glfw.ns.keycodes[0x17] = GLFW_KEY_5;
-    _glfw.ns.keycodes[0x16] = GLFW_KEY_6;
-    _glfw.ns.keycodes[0x1A] = GLFW_KEY_7;
-    _glfw.ns.keycodes[0x1C] = GLFW_KEY_8;
-    _glfw.ns.keycodes[0x19] = GLFW_KEY_9;
-    _glfw.ns.keycodes[0x00] = GLFW_KEY_A;
-    _glfw.ns.keycodes[0x0B] = GLFW_KEY_B;
-    _glfw.ns.keycodes[0x08] = GLFW_KEY_C;
-    _glfw.ns.keycodes[0x02] = GLFW_KEY_D;
-    _glfw.ns.keycodes[0x0E] = GLFW_KEY_E;
-    _glfw.ns.keycodes[0x03] = GLFW_KEY_F;
-    _glfw.ns.keycodes[0x05] = GLFW_KEY_G;
-    _glfw.ns.keycodes[0x04] = GLFW_KEY_H;
-    _glfw.ns.keycodes[0x22] = GLFW_KEY_I;
-    _glfw.ns.keycodes[0x26] = GLFW_KEY_J;
-    _glfw.ns.keycodes[0x28] = GLFW_KEY_K;
-    _glfw.ns.keycodes[0x25] = GLFW_KEY_L;
-    _glfw.ns.keycodes[0x2E] = GLFW_KEY_M;
-    _glfw.ns.keycodes[0x2D] = GLFW_KEY_N;
-    _glfw.ns.keycodes[0x1F] = GLFW_KEY_O;
-    _glfw.ns.keycodes[0x23] = GLFW_KEY_P;
-    _glfw.ns.keycodes[0x0C] = GLFW_KEY_Q;
-    _glfw.ns.keycodes[0x0F] = GLFW_KEY_R;
-    _glfw.ns.keycodes[0x01] = GLFW_KEY_S;
-    _glfw.ns.keycodes[0x11] = GLFW_KEY_T;
-    _glfw.ns.keycodes[0x20] = GLFW_KEY_U;
-    _glfw.ns.keycodes[0x09] = GLFW_KEY_V;
-    _glfw.ns.keycodes[0x0D] = GLFW_KEY_W;
-    _glfw.ns.keycodes[0x07] = GLFW_KEY_X;
-    _glfw.ns.keycodes[0x10] = GLFW_KEY_Y;
-    _glfw.ns.keycodes[0x06] = GLFW_KEY_Z;
-
-    _glfw.ns.keycodes[0x27] = GLFW_KEY_APOSTROPHE;
-    _glfw.ns.keycodes[0x2A] = GLFW_KEY_BACKSLASH;
-    _glfw.ns.keycodes[0x2B] = GLFW_KEY_COMMA;
-    _glfw.ns.keycodes[0x18] = GLFW_KEY_EQUAL;
-    _glfw.ns.keycodes[0x32] = GLFW_KEY_GRAVE_ACCENT;
-    _glfw.ns.keycodes[0x21] = GLFW_KEY_LEFT_BRACKET;
-    _glfw.ns.keycodes[0x1B] = GLFW_KEY_MINUS;
-    _glfw.ns.keycodes[0x2F] = GLFW_KEY_PERIOD;
-    _glfw.ns.keycodes[0x1E] = GLFW_KEY_RIGHT_BRACKET;
-    _glfw.ns.keycodes[0x29] = GLFW_KEY_SEMICOLON;
-    _glfw.ns.keycodes[0x2C] = GLFW_KEY_SLASH;
-    _glfw.ns.keycodes[0x0A] = GLFW_KEY_WORLD_1;
-
-    _glfw.ns.keycodes[0x33] = GLFW_KEY_BACKSPACE;
-    _glfw.ns.keycodes[0x39] = GLFW_KEY_CAPS_LOCK;
-    _glfw.ns.keycodes[0x75] = GLFW_KEY_DELETE;
-    _glfw.ns.keycodes[0x7D] = GLFW_KEY_DOWN;
-    _glfw.ns.keycodes[0x77] = GLFW_KEY_END;
-    _glfw.ns.keycodes[0x24] = GLFW_KEY_ENTER;
-    _glfw.ns.keycodes[0x35] = GLFW_KEY_ESCAPE;
-    _glfw.ns.keycodes[0x7A] = GLFW_KEY_F1;
-    _glfw.ns.keycodes[0x78] = GLFW_KEY_F2;
-    _glfw.ns.keycodes[0x63] = GLFW_KEY_F3;
-    _glfw.ns.keycodes[0x76] = GLFW_KEY_F4;
-    _glfw.ns.keycodes[0x60] = GLFW_KEY_F5;
-    _glfw.ns.keycodes[0x61] = GLFW_KEY_F6;
-    _glfw.ns.keycodes[0x62] = GLFW_KEY_F7;
-    _glfw.ns.keycodes[0x64] = GLFW_KEY_F8;
-    _glfw.ns.keycodes[0x65] = GLFW_KEY_F9;
-    _glfw.ns.keycodes[0x6D] = GLFW_KEY_F10;
-    _glfw.ns.keycodes[0x67] = GLFW_KEY_F11;
-    _glfw.ns.keycodes[0x6F] = GLFW_KEY_F12;
-    _glfw.ns.keycodes[0x69] = GLFW_KEY_F13;
-    _glfw.ns.keycodes[0x6B] = GLFW_KEY_F14;
-    _glfw.ns.keycodes[0x71] = GLFW_KEY_F15;
-    _glfw.ns.keycodes[0x6A] = GLFW_KEY_F16;
-    _glfw.ns.keycodes[0x40] = GLFW_KEY_F17;
-    _glfw.ns.keycodes[0x4F] = GLFW_KEY_F18;
-    _glfw.ns.keycodes[0x50] = GLFW_KEY_F19;
-    _glfw.ns.keycodes[0x5A] = GLFW_KEY_F20;
-    _glfw.ns.keycodes[0x73] = GLFW_KEY_HOME;
-    _glfw.ns.keycodes[0x72] = GLFW_KEY_INSERT;
-    _glfw.ns.keycodes[0x7B] = GLFW_KEY_LEFT;
-    _glfw.ns.keycodes[0x3A] = GLFW_KEY_LEFT_ALT;
-    _glfw.ns.keycodes[0x3B] = GLFW_KEY_LEFT_CONTROL;
-    _glfw.ns.keycodes[0x38] = GLFW_KEY_LEFT_SHIFT;
-    _glfw.ns.keycodes[0x37] = GLFW_KEY_LEFT_SUPER;
-    _glfw.ns.keycodes[0x6E] = GLFW_KEY_MENU;
-    _glfw.ns.keycodes[0x47] = GLFW_KEY_NUM_LOCK;
-    _glfw.ns.keycodes[0x79] = GLFW_KEY_PAGE_DOWN;
-    _glfw.ns.keycodes[0x74] = GLFW_KEY_PAGE_UP;
-    _glfw.ns.keycodes[0x7C] = GLFW_KEY_RIGHT;
-    _glfw.ns.keycodes[0x3D] = GLFW_KEY_RIGHT_ALT;
-    _glfw.ns.keycodes[0x3E] = GLFW_KEY_RIGHT_CONTROL;
-    _glfw.ns.keycodes[0x3C] = GLFW_KEY_RIGHT_SHIFT;
-    _glfw.ns.keycodes[0x36] = GLFW_KEY_RIGHT_SUPER;
-    _glfw.ns.keycodes[0x31] = GLFW_KEY_SPACE;
-    _glfw.ns.keycodes[0x30] = GLFW_KEY_TAB;
-    _glfw.ns.keycodes[0x7E] = GLFW_KEY_UP;
-
-    _glfw.ns.keycodes[0x52] = GLFW_KEY_KP_0;
-    _glfw.ns.keycodes[0x53] = GLFW_KEY_KP_1;
-    _glfw.ns.keycodes[0x54] = GLFW_KEY_KP_2;
-    _glfw.ns.keycodes[0x55] = GLFW_KEY_KP_3;
-    _glfw.ns.keycodes[0x56] = GLFW_KEY_KP_4;
-    _glfw.ns.keycodes[0x57] = GLFW_KEY_KP_5;
-    _glfw.ns.keycodes[0x58] = GLFW_KEY_KP_6;
-    _glfw.ns.keycodes[0x59] = GLFW_KEY_KP_7;
-    _glfw.ns.keycodes[0x5B] = GLFW_KEY_KP_8;
-    _glfw.ns.keycodes[0x5C] = GLFW_KEY_KP_9;
-    _glfw.ns.keycodes[0x45] = GLFW_KEY_KP_ADD;
-    _glfw.ns.keycodes[0x41] = GLFW_KEY_KP_DECIMAL;
-    _glfw.ns.keycodes[0x4B] = GLFW_KEY_KP_DIVIDE;
-    _glfw.ns.keycodes[0x4C] = GLFW_KEY_KP_ENTER;
-    _glfw.ns.keycodes[0x51] = GLFW_KEY_KP_EQUAL;
-    _glfw.ns.keycodes[0x43] = GLFW_KEY_KP_MULTIPLY;
-    _glfw.ns.keycodes[0x4E] = GLFW_KEY_KP_SUBTRACT;
-
-    for (keycode = 0; keycode < 256; keycode++)
-    {
-        // Store the reverse translation for faster key name lookup
-        if (_glfw.ns.keycodes[keycode] >= 0)
-            _glfw.ns.key_to_keycode[_glfw.ns.keycodes[keycode]] = keycode;
-    }
-}
-
 // Retrieve Unicode data for the current keyboard layout
 //
 static bool updateUnicodeDataNS(void)
@@ -478,10 +346,40 @@ static GLFWapplicationwillfinishlaunchingfun finish_launching_callback = NULL;
         finish_launching_callback();
 }
 
+- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename {
+    (void)theApplication;
+    if (!filename || !_glfw.ns.file_open_callback) return NO;
+    const char *path = NULL;
+    @try {
+        path = [[NSFileManager defaultManager] fileSystemRepresentationWithPath: filename];
+    } @catch(NSException *exc) {
+        NSLog(@"Converting openFile filename: %@ failed with error: %@", filename, exc.reason);
+        return NO;
+    }
+    if (!path) return NO;
+    return _glfw.ns.file_open_callback(path);
+}
+
+- (void)application:(NSApplication *)sender openFiles:(NSArray *)filenames {
+    (void)sender;
+    if (!_glfw.ns.file_open_callback || !filenames) return;
+    for (id x in filenames) {
+        NSString *filename = x;
+        const char *path = NULL;
+        @try {
+            path = [[NSFileManager defaultManager] fileSystemRepresentationWithPath: filename];
+        } @catch(NSException *exc) {
+            NSLog(@"Converting openFiles filename: %@ failed with error: %@", filename, exc.reason);
+        }
+        if (path) _glfw.ns.file_open_callback(path);
+    }
+}
+
 - (void)applicationDidFinishLaunching:(NSNotification *)notification
 {
     (void)notification;
     [NSApp stop:nil];
+    if (_glfw.ns.file_open_callback) _glfw.ns.file_open_callback(":cocoa::application launched::");
 
     CGDisplayRegisterReconfigurationCallback(display_reconfigured, NULL);
     _glfwCocoaPostEmptyEvent();
@@ -648,8 +546,12 @@ int _glfwPlatformInit(void)
     if (_glfw.hints.init.ns.chdir)
         changeToResourcesDirectory();
 
-    // Press and Hold prevents some keys from emitting repeated characters
-    NSDictionary* defaults = @{@"ApplePressAndHoldEnabled":@NO};
+    NSDictionary* defaults = @{
+        // Press and Hold prevents some keys from emitting repeated characters
+        @"ApplePressAndHoldEnabled": @NO,
+        // Dont generate openFile events from command line arguments
+        @"NSTreatUnknownArgumentsAsOpen": @"NO",
+    };
     [[NSUserDefaults standardUserDefaults] registerDefaults:defaults];
 
     [[NSNotificationCenter defaultCenter]
@@ -658,8 +560,6 @@ int _glfwPlatformInit(void)
                name:NSTextInputContextKeyboardSelectionDidChangeNotification
              object:nil];
 
-    createKeyTables();
-
     _glfw.ns.eventSource = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);
     if (!_glfw.ns.eventSource)
         return false;

glfw/cocoa_monitor.m

@@ -41,18 +41,30 @@
 
 // Get the name of the specified display, or NULL
 //
-static char* getDisplayName(CGDirectDisplayID displayID)
+static char* getDisplayName(CGDirectDisplayID displayID, NSScreen* screen)
 {
+    // IOKit doesn't work on Apple Silicon anymore
+    // Luckily, 10.15 introduced -[NSScreen localizedName].
+    // Use it if available, and fall back to IOKit otherwise.
+    if (screen)
+    {
+        if ([screen respondsToSelector:@selector(localizedName)])
+        {
+            NSString* name = [screen valueForKey:@"localizedName"];
+            if (name)
+                return _glfw_strdup([name UTF8String]);
+        }
+    }
     io_iterator_t it;
     io_service_t service;
     CFDictionaryRef info;
 
-    if (IOServiceGetMatchingServices(kIOMasterPortDefault,
+    if (IOServiceGetMatchingServices(kIOMainPortDefault,
                                      IOServiceMatching("IODisplayConnect"),
                                      &it) != 0)
     {
         // This may happen if a desktop Mac is running headless
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     while ((service = IOIteratorNext(it)) != 0)
@@ -90,7 +102,7 @@ static char* getDisplayName(CGDirectDisplayID displayID)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,
                         "Cocoa: Failed to find service port for display");
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     CFDictionaryRef names =
@@ -103,7 +115,7 @@ static char* getDisplayName(CGDirectDisplayID displayID)
     {
         // This may happen if a desktop Mac is running headless
         CFRelease(info);
-        return NULL;
+        return _glfw_strdup("Display");
     }
 
     const CFIndex size =
@@ -245,7 +257,7 @@ static double getFallbackRefreshRate(CGDirectDisplayID displayID)
     io_iterator_t it;
     io_service_t service;
 
-    if (IOServiceGetMatchingServices(kIOMasterPortDefault,
+    if (IOServiceGetMatchingServices(kIOMainPortDefault,
                                      IOServiceMatching("IOFramebuffer"),
                                      &it) != 0)
     {
@@ -316,6 +328,7 @@ void _glfwClearDisplayLinks() {
             CVDisplayLinkRelease(_glfw.ns.displayLinks.entries[i].displayLink);
             _glfw.ns.displayLinks.entries[i].displayLink = nil;
             _glfw.ns.displayLinks.entries[i].lastRenderFrameRequestedAt = 0;
+            _glfw.ns.displayLinks.entries[i].first_unserviced_render_frame_request_at = 0;
         }
     }
     _glfw.ns.displayLinks.count = 0;
@@ -326,14 +339,21 @@ static CVReturn displayLinkCallback(
         const CVTimeStamp* now UNUSED, const CVTimeStamp* outputTime UNUSED,
         CVOptionFlags flagsIn UNUSED, CVOptionFlags* flagsOut UNUSED, void* userInfo)
 {
-    CGDirectDisplayID displayID = (CGDirectDisplayID)userInfo;
+    CGDirectDisplayID displayID = (uintptr_t)userInfo;
     NSNumber *arg = [NSNumber numberWithUnsignedInt:displayID];
     [NSApp performSelectorOnMainThread:@selector(render_frame_received:) withObject:arg waitUntilDone:NO];
     [arg release];
     return kCVReturnSuccess;
 }
 
-static inline void createDisplayLink(CGDirectDisplayID displayID) {
+void
+_glfw_create_cv_display_link(_GLFWDisplayLinkNS *entry) {
+    CVDisplayLinkCreateWithCGDisplay(entry->displayID, &entry->displayLink);
+    CVDisplayLinkSetOutputCallback(entry->displayLink, &displayLinkCallback, (void*)(uintptr_t)entry->displayID);
+}
+
+static void
+createDisplayLink(CGDirectDisplayID displayID) {
     if (_glfw.ns.displayLinks.count >= sizeof(_glfw.ns.displayLinks.entries)/sizeof(_glfw.ns.displayLinks.entries[0]) - 1) return;
     for (size_t i = 0; i < _glfw.ns.displayLinks.count; i++) {
         if (_glfw.ns.displayLinks.entries[i].displayID == displayID) return;
@@ -341,8 +361,7 @@ static inline void createDisplayLink(CGDirectDisplayID displayID) {
     _GLFWDisplayLinkNS *entry = &_glfw.ns.displayLinks.entries[_glfw.ns.displayLinks.count++];
     memset(entry, 0, sizeof(_GLFWDisplayLinkNS));
     entry->displayID = displayID;
-    CVDisplayLinkCreateWithCGDisplay(displayID, &entry->displayLink);
-    CVDisplayLinkSetOutputCallback(entry->displayLink, &displayLinkCallback, (void*)(uintptr_t)displayID);
+    _glfw_create_cv_display_link(entry);
 }
 
 // Poll for changes in the set of connected monitors
@@ -374,28 +393,46 @@ void _glfwPollMonitorsNS(void)
         if (CGDisplayIsAsleep(displays[i]))
             continue;
 
+        const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]);
+        NSScreen* screen = nil;
+
+        for (screen in [NSScreen screens])
+        {
+            NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"];
+
+            // HACK: Compare unit numbers instead of display IDs to work around
+            //       display replacement on machines with automatic graphics
+            //       switching
+            if (CGDisplayUnitNumber([screenNumber unsignedIntValue]) == unitNumber)
+                break;
+        }
+
         // HACK: Compare unit numbers instead of display IDs to work around
         //       display replacement on machines with automatic graphics
         //       switching
-        const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]);
-
-        for (uint32_t j = 0;  j < disconnectedCount;  j++)
+        uint32_t j;
+        for (j = 0;  j < disconnectedCount;  j++)
         {
             if (disconnected[j] && disconnected[j]->ns.unitNumber == unitNumber)
             {
+                disconnected[j]->ns.screen = screen;
                 disconnected[j] = NULL;
                 break;
             }
         }
 
+        if (j < disconnectedCount)
+            continue;
+
         const CGSize size = CGDisplayScreenSize(displays[i]);
-        char* name = getDisplayName(displays[i]);
+        char* name = getDisplayName(displays[i], screen);
         if (!name)
-            name = _glfw_strdup("Unknown");
+            continue;
 
         _GLFWmonitor* monitor = _glfwAllocMonitor(name, (int)size.width, (int)size.height);
         monitor->ns.displayID  = displays[i];
         monitor->ns.unitNumber = unitNumber;
+        monitor->ns.screen     = screen;
         createDisplayLink(monitor->ns.displayID);
 
         free(name);
@@ -547,15 +584,16 @@ GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
 
         const GLFWvidmode mode =
             vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
+        CFIndex j;
 
-        for (CFIndex j = 0;  j < *count;  j++)
+        for (j = 0;  j < *count;  j++)
         {
             if (_glfwCompareVideoModes(result + j, &mode) == 0)
                 break;
         }
 
         // Skip duplicate modes
-        if (i < *count)
+        if (j < *count)
             continue;
 
         (*count)++;

glfw/cocoa_platform.h

@@ -39,6 +39,9 @@ typedef void* CVDisplayLinkRef;
 // NOTE: Many Cocoa enum values have been renamed and we need to build across
 //       SDK versions where one is unavailable or the other deprecated
 //       We use the newer names in code and these macros to handle compatibility
+#if (MAC_OS_X_VERSION_MAX_ALLOWED < 120000) // Before macOS 12 Monterey
+  #define kIOMainPortDefault kIOMasterPortDefault
+#endif
 #if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
  #define NSBitmapFormatAlphaNonpremultiplied NSAlphaNonpremultipliedBitmapFormat
  #define NSEventMaskAny NSAnyEventMask
@@ -67,6 +70,7 @@ typedef void* CVDisplayLinkRef;
 
 typedef int (* GLFWcocoatextinputfilterfun)(int,int,unsigned int, unsigned long);
 typedef bool (* GLFWapplicationshouldhandlereopenfun)(int);
+typedef bool (* GLFWhandlefileopen)(const char*);
 typedef void (* GLFWapplicationwillfinishlaunchingfun)(void);
 typedef bool (* GLFWcocoatogglefullscreenfun)(GLFWwindow*);
 typedef void (* GLFWcocoarenderframefun)(GLFWwindow*);
@@ -128,6 +132,9 @@ typedef struct _GLFWwindowNS
 
     bool            maximized;
     bool            retina;
+    bool            in_traditional_fullscreen;
+    bool            titlebar_hidden;
+    unsigned long   pre_full_screen_style_mask;
 
     // Cached window properties to filter out duplicate events
     int             width, height;
@@ -154,7 +161,7 @@ typedef struct _GLFWDisplayLinkNS
 {
     CVDisplayLinkRef displayLink;
     CGDirectDisplayID displayID;
-    monotonic_t lastRenderFrameRequestedAt;
+    monotonic_t lastRenderFrameRequestedAt, first_unserviced_render_frame_request_at;
 } _GLFWDisplayLinkNS;
 
 // Cocoa-specific global data
@@ -175,8 +182,6 @@ typedef struct _GLFWlibraryNS
 
     char                keyName[64];
     char                text[256];
-    short int           keycodes[256];
-    short int           key_to_keycode[GLFW_KEY_LAST + 1];
     char*               clipboardString;
     CGPoint             cascadePoint;
     // Where to place the cursor when re-enabled
@@ -196,6 +201,8 @@ typedef struct _GLFWlibraryNS
         _GLFWDisplayLinkNS entries[256];
         size_t count;
     } displayLinks;
+    // the callback to handle file open events
+    GLFWhandlefileopen file_open_callback;
 
 } _GLFWlibraryNS;
 
@@ -242,3 +249,4 @@ void _glfwDispatchTickCallback(void);
 void _glfwDispatchRenderFrame(CGDirectDisplayID);
 void _glfwShutdownCVDisplayLink(unsigned long long, void*);
 void _glfwCocoaPostEmptyEvent(void);
+void _glfw_create_cv_display_link(_GLFWDisplayLinkNS *entry);

glfw/glfw.py

@@ -55,7 +55,7 @@ def wayland_protocol_file_name(base: str, ext: str = 'c') -> str:
     return 'wayland-{}-client-protocol.{}'.format(base, ext)
 
 
-def init_env(env: Env, pkg_config: Callable, at_least_version: Callable, test_compile: Callable, module: str = 'x11') -> Env:
+def init_env(env: Env, pkg_config: Callable, pkg_version: Callable, at_least_version: Callable, test_compile: Callable, module: str = 'x11') -> Env:
     ans = env.copy()
     ans.cflags.append('-fPIC')
     ans.cppflags.append('-D_GLFW_' + module.upper())
@@ -76,7 +76,11 @@ def init_env(env: Env, pkg_config: Callable, at_least_version: Callable, test_co
         ans.ldpaths.extend('-pthread -lm'.split())
         if not is_openbsd:
             ans.ldpaths.extend('-lrt -ldl'.split())
-        at_least_version('xkbcommon', 0, 5)
+        major, minor = pkg_version('xkbcommon')
+        if (major, minor) < (0, 5):
+            raise SystemExit('libxkbcommon >= 0.5 required')
+        if major < 1:
+            ans.cflags.append('-DXKB_HAS_NO_UTF32')
 
     if module == 'x11':
         for dep in 'x11 xrandr xinerama xcursor xkbcommon xkbcommon-x11 x11-xcb dbus-1'.split():
@@ -85,7 +89,7 @@ def init_env(env: Env, pkg_config: Callable, at_least_version: Callable, test_co
 
     elif module == 'cocoa':
         ans.cppflags.append('-DGL_SILENCE_DEPRECATION')
-        for f_ in 'Cocoa IOKit CoreFoundation CoreVideo'.split():
+        for f_ in 'Cocoa Carbon IOKit CoreFoundation CoreVideo'.split():
             ans.ldpaths.extend(('-framework', f_))
 
     elif module == 'wayland':
@@ -175,13 +179,12 @@ class Function:
         )
 
     def load(self) -> str:
-        ans = '*(void **) (&{name}_impl) = dlsym(handle, "{name}");'.format(
-            name=self.name
-        )
+        ans = f'*(void **) (&{self.name}_impl) = dlsym(handle, "{self.name}");'
+        ans += f'\n    if ({self.name}_impl == NULL) '
         if self.check_fail:
-            ans += '\n    if ({name}_impl == NULL) fail("Failed to load glfw function {name} with error: %s", dlerror());'.format(
-                name=self.name
-            )
+            ans += f'fail("Failed to load glfw function {self.name} with error: %s", dlerror());'
+        else:
+            ans += 'dlerror(); // clear error indicator'
         return ans
 
 
@@ -199,13 +202,15 @@ def generate_wrappers(glfw_header: str) -> None:
         functions.append(Function(decl))
     for line in '''\
     void* glfwGetCocoaWindow(GLFWwindow* window)
+    void glfwHideCocoaTitlebar(GLFWwindow* window, bool yes)
     void* glfwGetNSGLContext(GLFWwindow *window)
     uint32_t glfwGetCocoaMonitor(GLFWmonitor* monitor)
     GLFWcocoatextinputfilterfun glfwSetCocoaTextInputFilter(GLFWwindow* window, GLFWcocoatextinputfilterfun callback)
+    GLFWhandlefileopen glfwSetCocoaFileOpenCallback(GLFWhandlefileopen callback)
     GLFWcocoatogglefullscreenfun glfwSetCocoaToggleFullscreenIntercept(GLFWwindow *window, GLFWcocoatogglefullscreenfun callback)
     GLFWapplicationshouldhandlereopenfun glfwSetApplicationShouldHandleReopen(GLFWapplicationshouldhandlereopenfun callback)
     GLFWapplicationwillfinishlaunchingfun glfwSetApplicationWillFinishLaunching(GLFWapplicationwillfinishlaunchingfun callback)
-    void glfwGetCocoaKeyEquivalent(int glfw_key, int glfw_mods, char* cocoa_key, size_t key_sz, int* cocoa_mods)
+    uint32_t glfwGetCocoaKeyEquivalent(uint32_t glfw_key, int glfw_mods, int* cocoa_mods)
     void glfwCocoaRequestRenderFrame(GLFWwindow *w, GLFWcocoarenderframefun callback)
     void* glfwGetX11Display(void)
     int32_t glfwGetX11Window(GLFWwindow* window)
@@ -213,9 +218,11 @@ def generate_wrappers(glfw_header: str) -> None:
     const char* glfwGetPrimarySelectionString(GLFWwindow* window, void)
     int glfwGetNativeKeyForName(const char* key_name, int case_sensitive)
     void glfwRequestWaylandFrameEvent(GLFWwindow *handle, unsigned long long id, GLFWwaylandframecallbackfunc callback)
+    bool glfwWaylandSetTitlebarColor(GLFWwindow *handle, uint32_t color, bool use_system_color)
     unsigned long long glfwDBusUserNotify(const char *app_name, const char* icon, const char *summary, const char *body, \
 const char *action_text, int32_t timeout, GLFWDBusnotificationcreatedfun callback, void *data)
     void glfwDBusSetUserNotificationHandler(GLFWDBusnotificationactivatedfun handler)
+    int glfwSetX11LaunchCommand(GLFWwindow *handle, char **argv, int argc)
 '''.splitlines():
         if line:
             functions.append(Function(line.strip(), check_fail=False))
@@ -243,6 +250,7 @@ const char *action_text, int32_t timeout, GLFWDBusnotificationcreatedfun callbac
 
 typedef int (* GLFWcocoatextinputfilterfun)(int,int,unsigned int,unsigned long);
 typedef bool (* GLFWapplicationshouldhandlereopenfun)(int);
+typedef bool (* GLFWhandlefileopen)(const char*);
 typedef void (* GLFWapplicationwillfinishlaunchingfun)(void);
 typedef bool (* GLFWcocoatogglefullscreenfun)(GLFWwindow*);
 typedef void (* GLFWcocoarenderframefun)(GLFWwindow*);

glfw/glfw3.h

@@ -300,31 +300,6 @@ extern "C" {
 #define GLFW_VERSION_REVISION       0
 /*! @} */
 
-/*! @name Key and button actions
- *  @{ */
-/*! @brief The key or mouse button was released.
- *
- *  The key or mouse button was released.
- *
- *  @ingroup input
- */
-#define GLFW_RELEASE                0
-/*! @brief The key or mouse button was pressed.
- *
- *  The key or mouse button was pressed.
- *
- *  @ingroup input
- */
-#define GLFW_PRESS                  1
-/*! @brief The key was held down until it repeated.
- *
- *  The key was held down until it repeated.
- *
- *  @ingroup input
- */
-#define GLFW_REPEAT                 2
-/*! @} */
-
 /*! @defgroup hat_state Joystick hat states
  *  @brief Joystick hat states.
  *
@@ -367,200 +342,123 @@ extern "C" {
  *  @{
  */
 
-/* The unknown key */
-#define GLFW_KEY_UNKNOWN            -1
-
-/* Printable keys */
-#define GLFW_KEY_SPACE              32
-#define GLFW_KEY_EXCLAM             33  /* ! */
-#define GLFW_KEY_DOUBLE_QUOTE       34  /* " */
-#define GLFW_KEY_NUMBER_SIGN        35  /* # */
-#define GLFW_KEY_DOLLAR             36  /* $ */
-#define GLFW_KEY_AMPERSAND          38  /* & */
-#define GLFW_KEY_APOSTROPHE         39  /* ' */
-#define GLFW_KEY_PARENTHESIS_LEFT   40  /* ( */
-#define GLFW_KEY_PARENTHESIS_RIGHT  41  /* ) */
-#define GLFW_KEY_PLUS               43  /* + */
-#define GLFW_KEY_COMMA              44  /* , */
-#define GLFW_KEY_MINUS              45  /* - */
-#define GLFW_KEY_PERIOD             46  /* . */
-#define GLFW_KEY_SLASH              47  /* / */
-#define GLFW_KEY_0                  48
-#define GLFW_KEY_1                  49
-#define GLFW_KEY_2                  50
-#define GLFW_KEY_3                  51
-#define GLFW_KEY_4                  52
-#define GLFW_KEY_5                  53
-#define GLFW_KEY_6                  54
-#define GLFW_KEY_7                  55
-#define GLFW_KEY_8                  56
-#define GLFW_KEY_9                  57
-#define GLFW_KEY_COLON              58  /* : */
-#define GLFW_KEY_SEMICOLON          59  /* ; */
-#define GLFW_KEY_LESS               60  /* < */
-#define GLFW_KEY_EQUAL              61  /* = */
-#define GLFW_KEY_GREATER            62  /* > */
-#define GLFW_KEY_AT                 64  /* @ */
-#define GLFW_KEY_A                  65
-#define GLFW_KEY_B                  66
-#define GLFW_KEY_C                  67
-#define GLFW_KEY_D                  68
-#define GLFW_KEY_E                  69
-#define GLFW_KEY_F                  70
-#define GLFW_KEY_G                  71
-#define GLFW_KEY_H                  72
-#define GLFW_KEY_I                  73
-#define GLFW_KEY_J                  74
-#define GLFW_KEY_K                  75
-#define GLFW_KEY_L                  76
-#define GLFW_KEY_M                  77
-#define GLFW_KEY_N                  78
-#define GLFW_KEY_O                  79
-#define GLFW_KEY_P                  80
-#define GLFW_KEY_Q                  81
-#define GLFW_KEY_R                  82
-#define GLFW_KEY_S                  83
-#define GLFW_KEY_T                  84
-#define GLFW_KEY_U                  85
-#define GLFW_KEY_V                  86
-#define GLFW_KEY_W                  87
-#define GLFW_KEY_X                  88
-#define GLFW_KEY_Y                  89
-#define GLFW_KEY_Z                  90
-#define GLFW_KEY_LEFT_BRACKET       91  /* [ */
-#define GLFW_KEY_BACKSLASH          92  /* \ */
-#define GLFW_KEY_RIGHT_BRACKET      93  /* ] */
-#define GLFW_KEY_CIRCUMFLEX         94  /* ^ */
-#define GLFW_KEY_UNDERSCORE         95  /* _ */
-#define GLFW_KEY_GRAVE_ACCENT       96  /* ` */
-#define GLFW_KEY_WORLD_1            161 /* non-US #1 */
-#define GLFW_KEY_WORLD_2            162 /* non-US #2 */
-#define GLFW_KEY_PARAGRAPH          167 /* § */
-#define GLFW_KEY_MASCULINE          186 /* º */
-#define GLFW_KEY_A_GRAVE            192 /* À */
-#define GLFW_KEY_A_DIAERESIS        196 /* Ä */
-#define GLFW_KEY_A_RING             197 /* Å */
-#define GLFW_KEY_AE                 198 /* Æ */
-#define GLFW_KEY_C_CEDILLA          199 /* Ç */
-#define GLFW_KEY_E_GRAVE            200 /* È */
-#define GLFW_KEY_E_ACUTE            201 /* É */
-#define GLFW_KEY_I_GRAVE            204 /* Ì */
-#define GLFW_KEY_N_TILDE            209 /* Ñ */
-#define GLFW_KEY_O_GRAVE            210 /* Ò */
-#define GLFW_KEY_O_DIAERESIS        214 /* Ö */
-#define GLFW_KEY_O_SLASH            216 /* Ø */
-#define GLFW_KEY_U_GRAVE            217 /* Ù */
-#define GLFW_KEY_U_DIAERESIS        220 /* Ü */
-#define GLFW_KEY_S_SHARP            222 /* ß */
-#define GLFW_KEY_CYRILLIC_A         223 /* А */
-#define GLFW_KEY_CYRILLIC_BE        224 /* Б */
-#define GLFW_KEY_CYRILLIC_VE        225 /* В */
-#define GLFW_KEY_CYRILLIC_GHE       226 /* Г */
-#define GLFW_KEY_CYRILLIC_DE        227 /* Д */
-#define GLFW_KEY_CYRILLIC_IE        228 /* Е */
-#define GLFW_KEY_CYRILLIC_ZHE       229 /* Ж */
-#define GLFW_KEY_CYRILLIC_ZE        230 /* З */
-#define GLFW_KEY_CYRILLIC_I         231 /* И */
-#define GLFW_KEY_CYRILLIC_SHORT_I   232 /* Й */
-#define GLFW_KEY_CYRILLIC_KA        233 /* К */
-#define GLFW_KEY_CYRILLIC_EL        234 /* Л */
-#define GLFW_KEY_CYRILLIC_EM        235 /* М */
-#define GLFW_KEY_CYRILLIC_EN        236 /* Н */
-#define GLFW_KEY_CYRILLIC_O         237 /* О */
-#define GLFW_KEY_CYRILLIC_PE        238 /* П */
-#define GLFW_KEY_CYRILLIC_ER        239 /* Р */
-#define GLFW_KEY_CYRILLIC_ES        240 /* С */
-#define GLFW_KEY_CYRILLIC_TE        241 /* Т */
-#define GLFW_KEY_CYRILLIC_U         242 /* У */
-#define GLFW_KEY_CYRILLIC_EF        243 /* Ф */
-#define GLFW_KEY_CYRILLIC_HA        244 /* Х */
-#define GLFW_KEY_CYRILLIC_TSE       245 /* Ц */
-#define GLFW_KEY_CYRILLIC_CHE       246 /* Ч */
-#define GLFW_KEY_CYRILLIC_SHA       247 /* Ш */
-#define GLFW_KEY_CYRILLIC_SHCHA     248 /* Щ */
-#define GLFW_KEY_CYRILLIC_HARD_SIGN 249 /* Ъ */
-#define GLFW_KEY_CYRILLIC_YERU      250 /* Ы */
-#define GLFW_KEY_CYRILLIC_SOFT_SIGN 251 /* Ь */
-#define GLFW_KEY_CYRILLIC_E         252 /* Э */
-#define GLFW_KEY_CYRILLIC_YU        253 /* Ю */
-#define GLFW_KEY_CYRILLIC_YA        254 /* Я */
-#define GLFW_KEY_CYRILLIC_IO        255 /* Ё */
-
-#define GLFW_KEY_LAST_PRINTABLE     GLFW_KEY_CYRILLIC_IO
-
-/* Function keys */
-#define GLFW_KEY_ESCAPE             256
-#define GLFW_KEY_ENTER              257
-#define GLFW_KEY_TAB                258
-#define GLFW_KEY_BACKSPACE          259
-#define GLFW_KEY_INSERT             260
-#define GLFW_KEY_DELETE             261
-#define GLFW_KEY_RIGHT              262
-#define GLFW_KEY_LEFT               263
-#define GLFW_KEY_DOWN               264
-#define GLFW_KEY_UP                 265
-#define GLFW_KEY_PAGE_UP            266
-#define GLFW_KEY_PAGE_DOWN          267
-#define GLFW_KEY_HOME               268
-#define GLFW_KEY_END                269
-#define GLFW_KEY_CAPS_LOCK          280
-#define GLFW_KEY_SCROLL_LOCK        281
-#define GLFW_KEY_NUM_LOCK           282
-#define GLFW_KEY_PRINT_SCREEN       283
-#define GLFW_KEY_PAUSE              284
-#define GLFW_KEY_F1                 290
-#define GLFW_KEY_F2                 291
-#define GLFW_KEY_F3                 292
-#define GLFW_KEY_F4                 293
-#define GLFW_KEY_F5                 294
-#define GLFW_KEY_F6                 295
-#define GLFW_KEY_F7                 296
-#define GLFW_KEY_F8                 297
-#define GLFW_KEY_F9                 298
-#define GLFW_KEY_F10                299
-#define GLFW_KEY_F11                300
-#define GLFW_KEY_F12                301
-#define GLFW_KEY_F13                302
-#define GLFW_KEY_F14                303
-#define GLFW_KEY_F15                304
-#define GLFW_KEY_F16                305
-#define GLFW_KEY_F17                306
-#define GLFW_KEY_F18                307
-#define GLFW_KEY_F19                308
-#define GLFW_KEY_F20                309
-#define GLFW_KEY_F21                310
-#define GLFW_KEY_F22                311
-#define GLFW_KEY_F23                312
-#define GLFW_KEY_F24                313
-#define GLFW_KEY_F25                314
-#define GLFW_KEY_KP_0               320
-#define GLFW_KEY_KP_1               321
-#define GLFW_KEY_KP_2               322
-#define GLFW_KEY_KP_3               323
-#define GLFW_KEY_KP_4               324
-#define GLFW_KEY_KP_5               325
-#define GLFW_KEY_KP_6               326
-#define GLFW_KEY_KP_7               327
-#define GLFW_KEY_KP_8               328
-#define GLFW_KEY_KP_9               329
-#define GLFW_KEY_KP_DECIMAL         330
-#define GLFW_KEY_KP_DIVIDE          331
-#define GLFW_KEY_KP_MULTIPLY        332
-#define GLFW_KEY_KP_SUBTRACT        333
-#define GLFW_KEY_KP_ADD             334
-#define GLFW_KEY_KP_ENTER           335
-#define GLFW_KEY_KP_EQUAL           336
-#define GLFW_KEY_LEFT_SHIFT         340
-#define GLFW_KEY_LEFT_CONTROL       341
-#define GLFW_KEY_LEFT_ALT           342
-#define GLFW_KEY_LEFT_SUPER         343
-#define GLFW_KEY_RIGHT_SHIFT        344
-#define GLFW_KEY_RIGHT_CONTROL      345
-#define GLFW_KEY_RIGHT_ALT          346
-#define GLFW_KEY_RIGHT_SUPER        347
-#define GLFW_KEY_MENU               348
-
-#define GLFW_KEY_LAST               GLFW_KEY_MENU
+/* start functional key names (auto generated by gen-key-constants.py do not edit) */
+typedef enum {
+  GLFW_FKEY_FIRST = 0xe000u,
+  GLFW_FKEY_ESCAPE = 0xe000u,
+  GLFW_FKEY_ENTER = 0xe001u,
+  GLFW_FKEY_TAB = 0xe002u,
+  GLFW_FKEY_BACKSPACE = 0xe003u,
+  GLFW_FKEY_INSERT = 0xe004u,
+  GLFW_FKEY_DELETE = 0xe005u,
+  GLFW_FKEY_LEFT = 0xe006u,
+  GLFW_FKEY_RIGHT = 0xe007u,
+  GLFW_FKEY_UP = 0xe008u,
+  GLFW_FKEY_DOWN = 0xe009u,
+  GLFW_FKEY_PAGE_UP = 0xe00au,
+  GLFW_FKEY_PAGE_DOWN = 0xe00bu,
+  GLFW_FKEY_HOME = 0xe00cu,
+  GLFW_FKEY_END = 0xe00du,
+  GLFW_FKEY_CAPS_LOCK = 0xe00eu,
+  GLFW_FKEY_SCROLL_LOCK = 0xe00fu,
+  GLFW_FKEY_NUM_LOCK = 0xe010u,
+  GLFW_FKEY_PRINT_SCREEN = 0xe011u,
+  GLFW_FKEY_PAUSE = 0xe012u,
+  GLFW_FKEY_MENU = 0xe013u,
+  GLFW_FKEY_F1 = 0xe014u,
+  GLFW_FKEY_F2 = 0xe015u,
+  GLFW_FKEY_F3 = 0xe016u,
+  GLFW_FKEY_F4 = 0xe017u,
+  GLFW_FKEY_F5 = 0xe018u,
+  GLFW_FKEY_F6 = 0xe019u,
+  GLFW_FKEY_F7 = 0xe01au,
+  GLFW_FKEY_F8 = 0xe01bu,
+  GLFW_FKEY_F9 = 0xe01cu,
+  GLFW_FKEY_F10 = 0xe01du,
+  GLFW_FKEY_F11 = 0xe01eu,
+  GLFW_FKEY_F12 = 0xe01fu,
+  GLFW_FKEY_F13 = 0xe020u,
+  GLFW_FKEY_F14 = 0xe021u,
+  GLFW_FKEY_F15 = 0xe022u,
+  GLFW_FKEY_F16 = 0xe023u,
+  GLFW_FKEY_F17 = 0xe024u,
+  GLFW_FKEY_F18 = 0xe025u,
+  GLFW_FKEY_F19 = 0xe026u,
+  GLFW_FKEY_F20 = 0xe027u,
+  GLFW_FKEY_F21 = 0xe028u,
+  GLFW_FKEY_F22 = 0xe029u,
+  GLFW_FKEY_F23 = 0xe02au,
+  GLFW_FKEY_F24 = 0xe02bu,
+  GLFW_FKEY_F25 = 0xe02cu,
+  GLFW_FKEY_F26 = 0xe02du,
+  GLFW_FKEY_F27 = 0xe02eu,
+  GLFW_FKEY_F28 = 0xe02fu,
+  GLFW_FKEY_F29 = 0xe030u,
+  GLFW_FKEY_F30 = 0xe031u,
+  GLFW_FKEY_F31 = 0xe032u,
+  GLFW_FKEY_F32 = 0xe033u,
+  GLFW_FKEY_F33 = 0xe034u,
+  GLFW_FKEY_F34 = 0xe035u,
+  GLFW_FKEY_F35 = 0xe036u,
+  GLFW_FKEY_KP_0 = 0xe037u,
+  GLFW_FKEY_KP_1 = 0xe038u,
+  GLFW_FKEY_KP_2 = 0xe039u,
+  GLFW_FKEY_KP_3 = 0xe03au,
+  GLFW_FKEY_KP_4 = 0xe03bu,
+  GLFW_FKEY_KP_5 = 0xe03cu,
+  GLFW_FKEY_KP_6 = 0xe03du,
+  GLFW_FKEY_KP_7 = 0xe03eu,
+  GLFW_FKEY_KP_8 = 0xe03fu,
+  GLFW_FKEY_KP_9 = 0xe040u,
+  GLFW_FKEY_KP_DECIMAL = 0xe041u,
+  GLFW_FKEY_KP_DIVIDE = 0xe042u,
+  GLFW_FKEY_KP_MULTIPLY = 0xe043u,
+  GLFW_FKEY_KP_SUBTRACT = 0xe044u,
+  GLFW_FKEY_KP_ADD = 0xe045u,
+  GLFW_FKEY_KP_ENTER = 0xe046u,
+  GLFW_FKEY_KP_EQUAL = 0xe047u,
+  GLFW_FKEY_KP_SEPARATOR = 0xe048u,
+  GLFW_FKEY_KP_LEFT = 0xe049u,
+  GLFW_FKEY_KP_RIGHT = 0xe04au,
+  GLFW_FKEY_KP_UP = 0xe04bu,
+  GLFW_FKEY_KP_DOWN = 0xe04cu,
+  GLFW_FKEY_KP_PAGE_UP = 0xe04du,
+  GLFW_FKEY_KP_PAGE_DOWN = 0xe04eu,
+  GLFW_FKEY_KP_HOME = 0xe04fu,
+  GLFW_FKEY_KP_END = 0xe050u,
+  GLFW_FKEY_KP_INSERT = 0xe051u,
+  GLFW_FKEY_KP_DELETE = 0xe052u,
+  GLFW_FKEY_KP_BEGIN = 0xe053u,
+  GLFW_FKEY_MEDIA_PLAY = 0xe054u,
+  GLFW_FKEY_MEDIA_PAUSE = 0xe055u,
+  GLFW_FKEY_MEDIA_PLAY_PAUSE = 0xe056u,
+  GLFW_FKEY_MEDIA_REVERSE = 0xe057u,
+  GLFW_FKEY_MEDIA_STOP = 0xe058u,
+  GLFW_FKEY_MEDIA_FAST_FORWARD = 0xe059u,
+  GLFW_FKEY_MEDIA_REWIND = 0xe05au,
+  GLFW_FKEY_MEDIA_TRACK_NEXT = 0xe05bu,
+  GLFW_FKEY_MEDIA_TRACK_PREVIOUS = 0xe05cu,
+  GLFW_FKEY_MEDIA_RECORD = 0xe05du,
+  GLFW_FKEY_LOWER_VOLUME = 0xe05eu,
+  GLFW_FKEY_RAISE_VOLUME = 0xe05fu,
+  GLFW_FKEY_MUTE_VOLUME = 0xe060u,
+  GLFW_FKEY_LEFT_SHIFT = 0xe061u,
+  GLFW_FKEY_LEFT_CONTROL = 0xe062u,
+  GLFW_FKEY_LEFT_ALT = 0xe063u,
+  GLFW_FKEY_LEFT_SUPER = 0xe064u,
+  GLFW_FKEY_LEFT_HYPER = 0xe065u,
+  GLFW_FKEY_LEFT_META = 0xe066u,
+  GLFW_FKEY_RIGHT_SHIFT = 0xe067u,
+  GLFW_FKEY_RIGHT_CONTROL = 0xe068u,
+  GLFW_FKEY_RIGHT_ALT = 0xe069u,
+  GLFW_FKEY_RIGHT_SUPER = 0xe06au,
+  GLFW_FKEY_RIGHT_HYPER = 0xe06bu,
+  GLFW_FKEY_RIGHT_META = 0xe06cu,
+  GLFW_FKEY_ISO_LEVEL3_SHIFT = 0xe06du,
+  GLFW_FKEY_ISO_LEVEL5_SHIFT = 0xe06eu,
+  GLFW_FKEY_LAST = 0xe06eu
+} GLFWFunctionKey;
+/* end functional key names */
 
 /*! @} */
 
@@ -577,33 +475,44 @@ extern "C" {
  *  If this bit is set one or more Shift keys were held down.
  */
 #define GLFW_MOD_SHIFT           0x0001
-/*! @brief If this bit is set one or more Control keys were held down.
- *
- *  If this bit is set one or more Control keys were held down.
- */
-#define GLFW_MOD_CONTROL         0x0002
 /*! @brief If this bit is set one or more Alt keys were held down.
  *
  *  If this bit is set one or more Alt keys were held down.
  */
-#define GLFW_MOD_ALT             0x0004
+#define GLFW_MOD_ALT             0x0002
+/*! @brief If this bit is set one or more Alt keys were held down.
+ *
+ *  If this bit is set one or more Alt keys were held down.
+ */
+#define GLFW_MOD_CONTROL         0x0004
 /*! @brief If this bit is set one or more Super keys were held down.
  *
  *  If this bit is set one or more Super keys were held down.
  */
 #define GLFW_MOD_SUPER           0x0008
+/*! @brief If this bit is set one or more Hyper keys were held down.
+ *
+ *  If this bit is set one or more Hyper keys were held down.
+ */
+#define GLFW_MOD_HYPER           0x0010
+/*! @brief If this bit is set one or more Meta keys were held down.
+ *
+ *  If this bit is set one or more Meta keys were held down.
+ */
+#define GLFW_MOD_META            0x0020
 /*! @brief If this bit is set the Caps Lock key is enabled.
  *
  *  If this bit is set the Caps Lock key is enabled and the @ref
  *  GLFW_LOCK_KEY_MODS input mode is set.
  */
-#define GLFW_MOD_CAPS_LOCK       0x0010
+#define GLFW_MOD_CAPS_LOCK       0x0040
 /*! @brief If this bit is set the Num Lock key is enabled.
  *
  *  If this bit is set the Num Lock key is enabled and the @ref
  *  GLFW_LOCK_KEY_MODS input mode is set.
  */
-#define GLFW_MOD_NUM_LOCK        0x0020
+#define GLFW_MOD_NUM_LOCK        0x0080
+#define GLFW_LOCK_MASK           (GLFW_MOD_NUM_LOCK | GLFW_MOD_CAPS_LOCK)
 
 /*! @} */
 
@@ -614,18 +523,20 @@ extern "C" {
  *
  *  @ingroup input
  *  @{ */
-#define GLFW_MOUSE_BUTTON_1         0
-#define GLFW_MOUSE_BUTTON_2         1
-#define GLFW_MOUSE_BUTTON_3         2
-#define GLFW_MOUSE_BUTTON_4         3
-#define GLFW_MOUSE_BUTTON_5         4
-#define GLFW_MOUSE_BUTTON_6         5
-#define GLFW_MOUSE_BUTTON_7         6
-#define GLFW_MOUSE_BUTTON_8         7
-#define GLFW_MOUSE_BUTTON_LAST      GLFW_MOUSE_BUTTON_8
-#define GLFW_MOUSE_BUTTON_LEFT      GLFW_MOUSE_BUTTON_1
-#define GLFW_MOUSE_BUTTON_RIGHT     GLFW_MOUSE_BUTTON_2
-#define GLFW_MOUSE_BUTTON_MIDDLE    GLFW_MOUSE_BUTTON_3
+typedef enum GLFWMouseButton {
+    GLFW_MOUSE_BUTTON_1 = 0,
+    GLFW_MOUSE_BUTTON_LEFT = 0,
+    GLFW_MOUSE_BUTTON_2 = 1,
+    GLFW_MOUSE_BUTTON_RIGHT = 1,
+    GLFW_MOUSE_BUTTON_3 = 2,
+    GLFW_MOUSE_BUTTON_MIDDLE = 2,
+    GLFW_MOUSE_BUTTON_4 = 3,
+    GLFW_MOUSE_BUTTON_5 = 4,
+    GLFW_MOUSE_BUTTON_6 = 5,
+    GLFW_MOUSE_BUTTON_7 = 6,
+    GLFW_MOUSE_BUTTON_8 = 7,
+    GLFW_MOUSE_BUTTON_LAST = 7
+} GLFWMouseButton;
 /*! @} */
 
 /*! @defgroup joysticks Joysticks
@@ -1202,6 +1113,7 @@ typedef enum {
  */
 #define GLFW_ANGLE_PLATFORM_TYPE    0x00050002
 #define GLFW_DEBUG_KEYBOARD         0x00050003
+#define GLFW_DEBUG_RENDERING        0x00050004
 /*! @brief macOS specific init hint.
  *
  *  macOS specific [init hint](@ref GLFW_COCOA_CHDIR_RESOURCES_hint).
@@ -1285,16 +1197,43 @@ typedef struct GLFWwindow GLFWwindow;
  */
 typedef struct GLFWcursor GLFWcursor;
 
+typedef enum {
+    GLFW_RELEASE = 0,
+    GLFW_PRESS = 1,
+    GLFW_REPEAT = 2
+} GLFWKeyAction;
+
+typedef enum {
+    GLFW_IME_NONE,
+    GLFW_IME_PREEDIT_CHANGED,
+    GLFW_IME_COMMIT_TEXT
+} GLFWIMEState;
+
+typedef enum {
+    GLFW_IME_UPDATE_FOCUS = 1,
+    GLFW_IME_UPDATE_CURSOR_POSITION = 2
+} GLFWIMEUpdateType;
+
+typedef struct GLFWIMEUpdateEvent {
+    GLFWIMEUpdateType type;
+    const char *before_text, *at_text, *after_text;
+    bool focused;
+    struct {
+        int left, top, width, height;
+    } cursor;
+} GLFWIMEUpdateEvent;
+
+
 typedef struct GLFWkeyevent
 {
     // The [keyboard key](@ref keys) that was pressed or released.
-    int key;
+    uint32_t key, shifted_key, alternate_key;
 
     // The platform-specific identifier of the key.
     int native_key;
 
     // The event action. Either `GLFW_PRESS`, `GLFW_RELEASE` or `GLFW_REPEAT`.
-    int action;
+    GLFWKeyAction action;
 
     // Bit field describing which [modifier keys](@ref mods) were held down.
     int mods;
@@ -1303,9 +1242,9 @@ typedef struct GLFWkeyevent
     const char *text;
 
     // Used for Input Method events. Zero for normal key events.
-    //   A value of 1 means the pre-edit text for the input event has been changed.
-    //   A value of 2 means the text should be committed.
-    int ime_state;
+    //   A value of GLFW_IME_PREEDIT_CHANGED means the pre-edit text for the input event has been changed.
+    //   A value of GLFW_IME_COMMIT_TEXT means the text should be committed.
+    GLFWIMEState ime_state;
 } GLFWkeyevent;
 
 /*! @brief The function pointer type for error callbacks.
@@ -1661,7 +1600,7 @@ typedef void (* GLFWscrollfun)(GLFWwindow*,double,double,int,int);
  *  This is the function pointer type for key callbacks.  A keyboard
  *  key callback function has the following signature:
  *  @code
- *  void function_name(GLFWwindow* window, int key, int native_key, int action, int mods)
+ *  void function_name(GLFWwindow* window, uint32_t key, int native_key, int action, int mods)
  *  @endcode
  *  The semantics of this function are that the key that is interacted with on the
  *  keyboard is reported, and the text, if any generated by the key is reported.
@@ -1761,6 +1700,7 @@ typedef void (* GLFWjoystickfun)(int,int);
 
 typedef void (* GLFWuserdatafun)(unsigned long long, void*);
 typedef void (* GLFWtickcallback)(void*);
+typedef bool (* GLFWdrawtextfun)(GLFWwindow *window, const char *text, uint32_t fg, uint32_t bg, uint8_t *output_buf, size_t width, size_t height, float x_offset, float y_offset, size_t right_margin);
 
 /*! @brief Video mode type.
  *
@@ -1917,6 +1857,7 @@ GLFWAPI void glfwStopMainLoop(void);
 GLFWAPI unsigned long long glfwAddTimer(monotonic_t interval, bool repeats, GLFWuserdatafun callback, void * callback_data, GLFWuserdatafun free_callback);
 GLFWAPI void glfwUpdateTimer(unsigned long long timer_id, monotonic_t interval, bool enabled);
 GLFWAPI void glfwRemoveTimer(unsigned long long);
+GLFWAPI GLFWdrawtextfun glfwSetDrawTextFunction(GLFWdrawtextfun function);
 
 /*! @brief Terminates the GLFW library.
  *
@@ -4300,108 +4241,19 @@ GLFWAPI int glfwRawMouseMotionSupported(void);
  *  __Do not use this function__ for [text input](@ref input_char).  You will
  *  break text input for many languages even if it happens to work for yours.
  *
- *  If the key is `GLFW_KEY_UNKNOWN`, the keycode is used to identify the key,
+ *  If the key is `0`, the keycode is used to identify the key,
  *  otherwise the keycode is ignored.  If you specify a non-printable key, or
- *  `GLFW_KEY_UNKNOWN` and a keycode that maps to a non-printable key, this
+ *  `0` and a keycode that maps to a non-printable key, this
  *  function returns `NULL` but does not emit an error.
  *
  *  This behavior allows you to always pass in the arguments in the
  *  [key callback](@ref input_key) without modification.
  *
- *  The printable keys are:
- *  - `GLFW_KEY_SPACE`
- *  - `GLFW_KEY_EXCLAM`
- *  - `GLFW_KEY_DOUBLE_QUOTE`
- *  - `GLFW_KEY_NUMBER_SIGN`
- *  - `GLFW_KEY_DOLLAR`
- *  - `GLFW_KEY_AMPERSAND`
- *  - `GLFW_KEY_APOSTROPHE`
- *  - `GLFW_KEY_PARENTHESIS_LEFT`
- *  - `GLFW_KEY_PARENTHESIS_RIGHT`
- *  - `GLFW_KEY_PLUS`
- *  - `GLFW_KEY_COMMA`
- *  - `GLFW_KEY_MINUS`
- *  - `GLFW_KEY_PERIOD`
- *  - `GLFW_KEY_SLASH`
- *  - `GLFW_KEY_0` to `GLFW_KEY_9`
- *  - `GLFW_KEY_COLON`
- *  - `GLFW_KEY_SEMICOLON`
- *  - `GLFW_KEY_LESS`
- *  - `GLFW_KEY_EQUAL`
- *  - `GLFW_KEY_GREATER`
- *  - `GLFW_KEY_AT`
- *  - `GLFW_KEY_A` to `GLFW_KEY_Z`
- *  - `GLFW_KEY_LEFT_BRACKET`
- *  - `GLFW_KEY_BACKSLASH`
- *  - `GLFW_KEY_RIGHT_BRACKET`
- *  - `GLFW_KEY_CIRCUMFLEX`
- *  - `GLFW_KEY_UNDERSCORE`
- *  - `GLFW_KEY_GRAVE_ACCENT`
- *  - `GLFW_KEY_WORLD_1`
- *  - `GLFW_KEY_WORLD_2`
- *  - `GLFW_KEY_PARAGRAPH`
- *  - `GLFW_KEY_MASCULINE`
- *  - `GLFW_KEY_A_GRAVE`
- *  - `GLFW_KEY_A_DIAERESIS`
- *  - `GLFW_KEY_A_RING`
- *  - `GLFW_KEY_AE`
- *  - `GLFW_KEY_C_CEDILLA`
- *  - `GLFW_KEY_E_GRAVE`
- *  - `GLFW_KEY_E_ACUTE`
- *  - `GLFW_KEY_I_GRAVE`
- *  - `GLFW_KEY_N_TILDE`
- *  - `GLFW_KEY_O_GRAVE`
- *  - `GLFW_KEY_O_DIAERESIS`
- *  - `GLFW_KEY_O_SLASH`
- *  - `GLFW_KEY_U_GRAVE`
- *  - `GLFW_KEY_U_DIAERESIS`
- *  - `GLFW_KEY_S_SHARP`
- *  - `GLFW_KEY_CYRILLIC_A`
- *  - `GLFW_KEY_CYRILLIC_BE`
- *  - `GLFW_KEY_CYRILLIC_VE`
- *  - `GLFW_KEY_CYRILLIC_GHE`
- *  - `GLFW_KEY_CYRILLIC_DE`
- *  - `GLFW_KEY_CYRILLIC_IE`
- *  - `GLFW_KEY_CYRILLIC_ZHE`
- *  - `GLFW_KEY_CYRILLIC_ZE`
- *  - `GLFW_KEY_CYRILLIC_I`
- *  - `GLFW_KEY_CYRILLIC_SHORT_I`
- *  - `GLFW_KEY_CYRILLIC_KA`
- *  - `GLFW_KEY_CYRILLIC_EL`
- *  - `GLFW_KEY_CYRILLIC_EM`
- *  - `GLFW_KEY_CYRILLIC_EN`
- *  - `GLFW_KEY_CYRILLIC_O`
- *  - `GLFW_KEY_CYRILLIC_PE`
- *  - `GLFW_KEY_CYRILLIC_ER`
- *  - `GLFW_KEY_CYRILLIC_ES`
- *  - `GLFW_KEY_CYRILLIC_TE`
- *  - `GLFW_KEY_CYRILLIC_U`
- *  - `GLFW_KEY_CYRILLIC_EF`
- *  - `GLFW_KEY_CYRILLIC_HA`
- *  - `GLFW_KEY_CYRILLIC_TSE`
- *  - `GLFW_KEY_CYRILLIC_CHE`
- *  - `GLFW_KEY_CYRILLIC_SHA`
- *  - `GLFW_KEY_CYRILLIC_SHCHA`
- *  - `GLFW_KEY_CYRILLIC_HARD_SIGN`
- *  - `GLFW_KEY_CYRILLIC_YERU`
- *  - `GLFW_KEY_CYRILLIC_SOFT_SIGN`
- *  - `GLFW_KEY_CYRILLIC_E`
- *  - `GLFW_KEY_CYRILLIC_YU`
- *  - `GLFW_KEY_CYRILLIC_YA`
- *  - `GLFW_KEY_CYRILLIC_IO`
- *  - `GLFW_KEY_KP_0` to `GLFW_KEY_KP_9`
- *  - `GLFW_KEY_KP_DECIMAL`
- *  - `GLFW_KEY_KP_DIVIDE`
- *  - `GLFW_KEY_KP_MULTIPLY`
- *  - `GLFW_KEY_KP_SUBTRACT`
- *  - `GLFW_KEY_KP_ADD`
- *  - `GLFW_KEY_KP_EQUAL`
- *
  *  Names for printable keys depend on keyboard layout, while names for
  *  non-printable keys are the same across layouts but depend on the application
  *  language and should be localized along with other user interface text.
  *
- *  @param[in] key The key to query, or `GLFW_KEY_UNKNOWN`.
+ *  @param[in] key The key to query, or `0`.
  *  @param[in] native_key The platform-specifc identifier of the key to query.
  *  @return The UTF-8 encoded, layout-specific name of the key, or `NULL`.
  *
@@ -4422,13 +4274,13 @@ GLFWAPI int glfwRawMouseMotionSupported(void);
  *
  *  @ingroup input
  */
-GLFWAPI const char* glfwGetKeyName(int key, int native_key);
+GLFWAPI const char* glfwGetKeyName(uint32_t key, int native_key);
 
 /*! @brief Returns the platform-specific identifier of the specified key.
  *
  *  This function returns the platform-specific identifier of the specified key.
  *
- *  If the key is `GLFW_KEY_UNKNOWN` or does not exist on the keyboard this
+ *  If the key is `0` or does not exist on the keyboard this
  *  method will return `-1`.
  *
  *  @param[in] key Any [named key](@ref keys).
@@ -4446,7 +4298,7 @@ GLFWAPI const char* glfwGetKeyName(int key, int native_key);
  *
  *  @ingroup input
  */
-GLFWAPI int glfwGetNativeKeyForKey(int key);
+GLFWAPI int glfwGetNativeKeyForKey(uint32_t key);
 
 /*! @brief Returns the last reported state of a keyboard key for the specified
  *  window.
@@ -4470,7 +4322,7 @@ GLFWAPI int glfwGetNativeKeyForKey(int key);
  *  __Do not use this function__ to implement [text input](@ref input_char).
  *
  *  @param[in] window The desired window.
- *  @param[in] key The desired [keyboard key](@ref keys).  `GLFW_KEY_UNKNOWN` is
+ *  @param[in] key The desired [keyboard key](@ref keys).  `0` is
  *  not a valid key for this function.
  *  @return One of `GLFW_PRESS` or `GLFW_RELEASE`.
  *
@@ -4486,7 +4338,7 @@ GLFWAPI int glfwGetNativeKeyForKey(int key);
  *
  *  @ingroup input
  */
-GLFWAPI int glfwGetKey(GLFWwindow* window, int key);
+GLFWAPI GLFWKeyAction glfwGetKey(GLFWwindow* window, uint32_t key);
 
 /*! @brief Returns the last reported state of a mouse button for the specified
  *  window.
@@ -4722,16 +4574,12 @@ GLFWAPI GLFWkeyboardfun glfwSetKeyboardCallback(GLFWwindow* window, GLFWkeyboard
  * Used to notify the IME system of changes in state such as focus gained/lost
  * and text cursor position.
  *
- * @param which: What data to notify. 1 means focus and 2 means cursor position.
- * @param a, b, c, d: Interpreted based on the value of which. When which is 1
- * a is interpreted as a boolean indicating focus gained/lost. When which is 2
- * a, b, c, d are the cursor x, y, width and height values (in the window co-ordinate
- * system).
+ * @param ev: What data to notify.
  *
  *  @ingroup input
  *  @since Added in version 4.0
  */
-GLFWAPI void glfwUpdateIMEState(GLFWwindow* window, int which, int a, int b, int c, int d);
+GLFWAPI void glfwUpdateIMEState(GLFWwindow* window, const GLFWIMEUpdateEvent *ev);
 
 
 /*! @brief Sets the mouse button callback.

glfw/ibus_glfw.c

@@ -107,11 +107,10 @@ get_ibus_text_from_message(DBusMessage *msg) {
 }
 
 static inline void
-send_text(const char *text, int ime_state) {
+send_text(const char *text, GLFWIMEState ime_state) {
     _GLFWwindow *w = _glfwFocusedWindow();
     if (w && w->callbacks.keyboard) {
-        GLFWkeyevent fake_ev;
-        _glfwInitializeKeyEvent(&fake_ev, GLFW_KEY_UNKNOWN, 0, GLFW_PRESS, 0);
+        GLFWkeyevent fake_ev = {.action = GLFW_PRESS};
         fake_ev.text = text;
         fake_ev.ime_state = ime_state;
         w->callbacks.keyboard((GLFWwindow*) w, &fake_ev);
@@ -131,11 +130,11 @@ message_handler(DBusConnection *conn UNUSED, DBusMessage *msg, void *user_data)
         case 0:
             text = get_ibus_text_from_message(msg);
             debug("IBUS: CommitText: '%s'\n", text ? text : "(nil)");
-            send_text(text, 2);
+            send_text(text, GLFW_IME_COMMIT_TEXT);
             break;
         case 1:
             text = get_ibus_text_from_message(msg);
-            send_text(text, 1);
+            send_text(text, GLFW_IME_PREEDIT_CHANGED);
             debug("IBUS: UpdatePreeditText: '%s'\n", text ? text : "(nil)");
             break;
         case 2:
@@ -390,6 +389,7 @@ ibus_key_state(unsigned int glfw_modifiers, int action) {
     M(ALT, IBUS_MOD1_MASK);
     M(NUM_LOCK, IBUS_MOD2_MASK);
     M(SUPER, IBUS_MOD4_MASK);
+    /* To do: figure out how to get super/hyper/meta */
 #undef M
     return ans;
 }

glfw/init.c

@@ -50,14 +50,14 @@ _GLFWlibrary _glfw = { false };
 //
 static _GLFWerror _glfwMainThreadError;
 static GLFWerrorfun _glfwErrorCallback;
-static _GLFWinitconfig _glfwInitHints =
-{
-    true,      // hat buttons
-    GLFW_ANGLE_PLATFORM_TYPE_NONE, // ANGLE backend
-    false,     // debug keyboard
-    {
-        true,  // macOS menu bar
-        true   // macOS bundle chdir
+static _GLFWinitconfig _glfwInitHints = {
+    .hatButtons = true,
+    .angleType = GLFW_ANGLE_PLATFORM_TYPE_NONE,
+    .debugKeyboard = false,
+    .debugRendering = false,
+    .ns = {
+        .menubar = true,  // macOS menu bar
+        .chdir = true   // macOS bundle chdir
     }
 };
 
@@ -285,6 +285,9 @@ GLFWAPI void glfwInitHint(int hint, int value)
         case GLFW_DEBUG_KEYBOARD:
             _glfwInitHints.debugKeyboard = value;
             return;
+        case GLFW_DEBUG_RENDERING:
+            _glfwInitHints.debugRendering = value;
+            return;
         case GLFW_COCOA_CHDIR_RESOURCES:
             _glfwInitHints.ns.chdir = value;
             return;
@@ -375,3 +378,10 @@ GLFWAPI GLFWapplicationclosefun glfwSetApplicationCloseCallback(GLFWapplicationc
     _GLFW_SWAP_POINTERS(_glfw.callbacks.application_close, cbfun);
     return cbfun;
 }
+
+GLFWAPI GLFWdrawtextfun glfwSetDrawTextFunction(GLFWdrawtextfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    _GLFW_SWAP_POINTERS(_glfw.callbacks.draw_text, cbfun);
+    return cbfun;
+}

glfw/input.c

@@ -273,34 +273,62 @@ static bool parseMapping(_GLFWmapping* mapping, const char* string)
 //////                         GLFW event API                       //////
 //////////////////////////////////////////////////////////////////////////
 
-void _glfwInitializeKeyEvent(GLFWkeyevent *ev, int key, int native_key, int action, int mods)
-{
-    ev->key = key;
-    ev->native_key = native_key;
-    ev->action = action;
-    ev->mods = mods;
-    ev->text = NULL;
-    ev->ime_state = 0;
+static void
+set_key_action(_GLFWwindow *window, uint32_t key, int val, int idx) {
+    const unsigned sz = arraysz(window->activated_keys);
+    if (idx < 0) {
+        for (unsigned i = 0; i < sz; i++) {
+            if (window->activated_keys[i].key == 0) {
+                idx = i;
+                break;
+            }
+        }
+        if (idx < 0) {
+            idx = sz - 1;
+            memmove(window->activated_keys, window->activated_keys + 1, sizeof(window->activated_keys[0]) * (sz - 1));
+            window->activated_keys[sz - 1].key = key;
+        }
+    }
+    if (val == GLFW_RELEASE) {
+        memset(window->activated_keys + idx, 0, sizeof(window->activated_keys[0]));
+        if (idx < (int)sz - 1) {
+            memmove(window->activated_keys + idx, window->activated_keys + idx + 1, sizeof(window->activated_keys[0]) * (sz - 1 - idx));
+            memset(window->activated_keys + sz - 1, 0, sizeof(window->activated_keys[0]));
+        }
+    } else {
+        window->activated_keys[idx].key = key;
+        window->activated_keys[idx].action = val;
+    }
 }
 
 // Notifies shared code of a physical key event
 //
 void _glfwInputKeyboard(_GLFWwindow* window, GLFWkeyevent* ev)
 {
-    if (ev->key >= 0 && ev->key <= GLFW_KEY_LAST)
+    if (ev->key > 0)
     {
         bool repeated = false;
+        int idx = -1;
+        int current_action = GLFW_RELEASE;
+        const unsigned sz = arraysz(window->activated_keys);
+        for (unsigned i = 0; i < sz; i++) {
+            if (window->activated_keys[i].key == ev->key) {
+                idx = i;
+                current_action = window->activated_keys[i].action;
+                break;
+            }
+        }
 
-        if (ev->action == GLFW_RELEASE && window->keys[ev->key] == GLFW_RELEASE)
+        if (ev->action == GLFW_RELEASE && current_action == GLFW_RELEASE)
             return;
 
-        if (ev->action == GLFW_PRESS && window->keys[ev->key] == GLFW_PRESS)
+        if (ev->action == GLFW_PRESS && current_action == GLFW_PRESS)
             repeated = true;
 
         if (ev->action == GLFW_RELEASE && window->stickyKeys)
-            window->keys[ev->key] = _GLFW_STICK;
+            set_key_action(window, ev->key, _GLFW_STICK, idx);
         else
-            window->keys[ev->key] = (char) ev->action;
+            set_key_action(window, ev->key, ev->action, idx);
 
         if (repeated)
             ev->action = GLFW_REPEAT;
@@ -463,200 +491,156 @@ void _glfwFreeJoystick(_GLFWjoystick* js)
     memset(js, 0, sizeof(_GLFWjoystick));
 }
 
-const char* _glfwGetKeyName(int key)
+unsigned int
+encode_utf8(uint32_t ch, char* dest) {
+    if (ch < 0x80) {
+        dest[0] = (char)ch;
+        return 1;
+    }
+    if (ch < 0x800) {
+        dest[0] = (ch>>6) | 0xC0;
+        dest[1] = (ch & 0x3F) | 0x80;
+        return 2;
+    }
+    if (ch < 0x10000) {
+        dest[0] = (ch>>12) | 0xE0;
+        dest[1] = ((ch>>6) & 0x3F) | 0x80;
+        dest[2] = (ch & 0x3F) | 0x80;
+        return 3;
+    }
+    if (ch < 0x110000) {
+        dest[0] = (ch>>18) | 0xF0;
+        dest[1] = ((ch>>12) & 0x3F) | 0x80;
+        dest[2] = ((ch>>6) & 0x3F) | 0x80;
+        dest[3] = (ch & 0x3F) | 0x80;
+        return 4;
+    }
+    return 0;
+}
+
+const char*
+_glfwGetKeyName(int key)
 {
     switch (key)
     {
-        // Printable keys
-        case GLFW_KEY_SPACE:              return "SPACE";
-        case GLFW_KEY_EXCLAM:             return "EXCLAM";
-        case GLFW_KEY_DOUBLE_QUOTE:       return "DOUBLE_QUOTE";
-        case GLFW_KEY_NUMBER_SIGN:        return "NUMBER_SIGN";
-        case GLFW_KEY_DOLLAR:             return "DOLLAR";
-        case GLFW_KEY_AMPERSAND:          return "AMPERSAND";
-        case GLFW_KEY_APOSTROPHE:         return "APOSTROPHE";
-        case GLFW_KEY_PARENTHESIS_LEFT:   return "PARENTHESIS_LEFT";
-        case GLFW_KEY_PARENTHESIS_RIGHT:  return "PARENTHESIS_RIGHT";
-        case GLFW_KEY_PLUS:               return "PLUS";
-        case GLFW_KEY_COMMA:              return "COMMA";
-        case GLFW_KEY_MINUS:              return "MINUS";
-        case GLFW_KEY_PERIOD:             return "PERIOD";
-        case GLFW_KEY_SLASH:              return "SLASH";
-        case GLFW_KEY_0:                  return "0";
-        case GLFW_KEY_1:                  return "1";
-        case GLFW_KEY_2:                  return "2";
-        case GLFW_KEY_3:                  return "3";
-        case GLFW_KEY_4:                  return "4";
-        case GLFW_KEY_5:                  return "5";
-        case GLFW_KEY_6:                  return "6";
-        case GLFW_KEY_7:                  return "7";
-        case GLFW_KEY_8:                  return "8";
-        case GLFW_KEY_9:                  return "9";
-        case GLFW_KEY_COLON:              return "COLON";
-        case GLFW_KEY_SEMICOLON:          return "SEMICOLON";
-        case GLFW_KEY_LESS:               return "LESS";
-        case GLFW_KEY_EQUAL:              return "EQUAL";
-        case GLFW_KEY_GREATER:            return "GREATER";
-        case GLFW_KEY_AT:                 return "AT";
-        case GLFW_KEY_A:                  return "A";
-        case GLFW_KEY_B:                  return "B";
-        case GLFW_KEY_C:                  return "C";
-        case GLFW_KEY_D:                  return "D";
-        case GLFW_KEY_E:                  return "E";
-        case GLFW_KEY_F:                  return "F";
-        case GLFW_KEY_G:                  return "G";
-        case GLFW_KEY_H:                  return "H";
-        case GLFW_KEY_I:                  return "I";
-        case GLFW_KEY_J:                  return "J";
-        case GLFW_KEY_K:                  return "K";
-        case GLFW_KEY_L:                  return "L";
-        case GLFW_KEY_M:                  return "M";
-        case GLFW_KEY_N:                  return "N";
-        case GLFW_KEY_O:                  return "O";
-        case GLFW_KEY_P:                  return "P";
-        case GLFW_KEY_Q:                  return "Q";
-        case GLFW_KEY_R:                  return "R";
-        case GLFW_KEY_S:                  return "S";
-        case GLFW_KEY_T:                  return "T";
-        case GLFW_KEY_U:                  return "U";
-        case GLFW_KEY_V:                  return "V";
-        case GLFW_KEY_W:                  return "W";
-        case GLFW_KEY_X:                  return "X";
-        case GLFW_KEY_Y:                  return "Y";
-        case GLFW_KEY_Z:                  return "Z";
-        case GLFW_KEY_LEFT_BRACKET:       return "LEFT_BRACKET";
-        case GLFW_KEY_BACKSLASH:          return "BACKSLASH";
-        case GLFW_KEY_RIGHT_BRACKET:      return "RIGHT_BRACKET";
-        case GLFW_KEY_CIRCUMFLEX:         return "CIRCUMFLEX";
-        case GLFW_KEY_UNDERSCORE:         return "UNDERSCORE";
-        case GLFW_KEY_GRAVE_ACCENT:       return "GRAVE_ACCENT";
-        case GLFW_KEY_WORLD_1:            return "WORLD_1";
-        case GLFW_KEY_WORLD_2:            return "WORLD_2";
-        case GLFW_KEY_PARAGRAPH:          return "PARAGRAPH";
-        case GLFW_KEY_MASCULINE:          return "MASCULINE";
-        case GLFW_KEY_A_GRAVE:            return "A_GRAVE";
-        case GLFW_KEY_A_DIAERESIS:        return "A_DIAERESIS";
-        case GLFW_KEY_A_RING:             return "A_RING";
-        case GLFW_KEY_AE:                 return "AE";
-        case GLFW_KEY_C_CEDILLA:          return "C_CEDILLA";
-        case GLFW_KEY_E_GRAVE:            return "E_GRAVE";
-        case GLFW_KEY_E_ACUTE:            return "E_ACUTE";
-        case GLFW_KEY_I_GRAVE:            return "I_GRAVE";
-        case GLFW_KEY_N_TILDE:            return "N_TILDE";
-        case GLFW_KEY_O_GRAVE:            return "O_GRAVE";
-        case GLFW_KEY_O_DIAERESIS:        return "O_DIAERESIS";
-        case GLFW_KEY_O_SLASH:            return "O_SLASH";
-        case GLFW_KEY_U_GRAVE:            return "U_GRAVE";
-        case GLFW_KEY_U_DIAERESIS:        return "U_DIAERESIS";
-        case GLFW_KEY_S_SHARP:            return "S_SHARP";
-        case GLFW_KEY_CYRILLIC_A:         return "CYRILLIC_A";
-        case GLFW_KEY_CYRILLIC_BE:        return "CYRILLIC_BE";
-        case GLFW_KEY_CYRILLIC_VE:        return "CYRILLIC_VE";
-        case GLFW_KEY_CYRILLIC_GHE:       return "CYRILLIC_GHE";
-        case GLFW_KEY_CYRILLIC_DE:        return "CYRILLIC_DE";
-        case GLFW_KEY_CYRILLIC_IE:        return "CYRILLIC_IE";
-        case GLFW_KEY_CYRILLIC_ZHE:       return "CYRILLIC_ZHE";
-        case GLFW_KEY_CYRILLIC_ZE:        return "CYRILLIC_ZE";
-        case GLFW_KEY_CYRILLIC_I:         return "CYRILLIC_I";
-        case GLFW_KEY_CYRILLIC_SHORT_I:   return "CYRILLIC_SHORT_I";
-        case GLFW_KEY_CYRILLIC_KA:        return "CYRILLIC_KA";
-        case GLFW_KEY_CYRILLIC_EL:        return "CYRILLIC_EL";
-        case GLFW_KEY_CYRILLIC_EM:        return "CYRILLIC_EM";
-        case GLFW_KEY_CYRILLIC_EN:        return "CYRILLIC_EN";
-        case GLFW_KEY_CYRILLIC_O:         return "CYRILLIC_O";
-        case GLFW_KEY_CYRILLIC_PE:        return "CYRILLIC_PE";
-        case GLFW_KEY_CYRILLIC_ER:        return "CYRILLIC_ER";
-        case GLFW_KEY_CYRILLIC_ES:        return "CYRILLIC_ES";
-        case GLFW_KEY_CYRILLIC_TE:        return "CYRILLIC_TE";
-        case GLFW_KEY_CYRILLIC_U:         return "CYRILLIC_U";
-        case GLFW_KEY_CYRILLIC_EF:        return "CYRILLIC_EF";
-        case GLFW_KEY_CYRILLIC_HA:        return "CYRILLIC_HA";
-        case GLFW_KEY_CYRILLIC_TSE:       return "CYRILLIC_TSE";
-        case GLFW_KEY_CYRILLIC_CHE:       return "CYRILLIC_CHE";
-        case GLFW_KEY_CYRILLIC_SHA:       return "CYRILLIC_SHA";
-        case GLFW_KEY_CYRILLIC_SHCHA:     return "CYRILLIC_SHCHA";
-        case GLFW_KEY_CYRILLIC_HARD_SIGN: return "CYRILLIC_HARD_SIGN";
-        case GLFW_KEY_CYRILLIC_YERU:      return "CYRILLIC_YERU";
-        case GLFW_KEY_CYRILLIC_SOFT_SIGN: return "CYRILLIC_SOFT_SIGN";
-        case GLFW_KEY_CYRILLIC_E:         return "CYRILLIC_E";
-        case GLFW_KEY_CYRILLIC_YU:        return "CYRILLIC_YU";
-        case GLFW_KEY_CYRILLIC_YA:        return "CYRILLIC_YA";
-        case GLFW_KEY_CYRILLIC_IO:        return "CYRILLIC_IO";
-
-        // Function keys
-        case GLFW_KEY_ESCAPE:             return "ESCAPE";
-        case GLFW_KEY_F1:                 return "F1";
-        case GLFW_KEY_F2:                 return "F2";
-        case GLFW_KEY_F3:                 return "F3";
-        case GLFW_KEY_F4:                 return "F4";
-        case GLFW_KEY_F5:                 return "F5";
-        case GLFW_KEY_F6:                 return "F6";
-        case GLFW_KEY_F7:                 return "F7";
-        case GLFW_KEY_F8:                 return "F8";
-        case GLFW_KEY_F9:                 return "F9";
-        case GLFW_KEY_F10:                return "F10";
-        case GLFW_KEY_F11:                return "F11";
-        case GLFW_KEY_F12:                return "F12";
-        case GLFW_KEY_F13:                return "F13";
-        case GLFW_KEY_F14:                return "F14";
-        case GLFW_KEY_F15:                return "F15";
-        case GLFW_KEY_F16:                return "F16";
-        case GLFW_KEY_F17:                return "F17";
-        case GLFW_KEY_F18:                return "F18";
-        case GLFW_KEY_F19:                return "F19";
-        case GLFW_KEY_F20:                return "F20";
-        case GLFW_KEY_F21:                return "F21";
-        case GLFW_KEY_F22:                return "F22";
-        case GLFW_KEY_F23:                return "F23";
-        case GLFW_KEY_F24:                return "F24";
-        case GLFW_KEY_F25:                return "F25";
-        case GLFW_KEY_UP:                 return "UP";
-        case GLFW_KEY_DOWN:               return "DOWN";
-        case GLFW_KEY_LEFT:               return "LEFT";
-        case GLFW_KEY_RIGHT:              return "RIGHT";
-        case GLFW_KEY_LEFT_SHIFT:         return "LEFT SHIFT";
-        case GLFW_KEY_RIGHT_SHIFT:        return "RIGHT SHIFT";
-        case GLFW_KEY_LEFT_CONTROL:       return "LEFT CONTROL";
-        case GLFW_KEY_RIGHT_CONTROL:      return "RIGHT CONTROL";
-        case GLFW_KEY_LEFT_ALT:           return "LEFT ALT";
-        case GLFW_KEY_RIGHT_ALT:          return "RIGHT ALT";
-        case GLFW_KEY_TAB:                return "TAB";
-        case GLFW_KEY_ENTER:              return "ENTER";
-        case GLFW_KEY_BACKSPACE:          return "BACKSPACE";
-        case GLFW_KEY_INSERT:             return "INSERT";
-        case GLFW_KEY_DELETE:             return "DELETE";
-        case GLFW_KEY_PAGE_UP:            return "PAGE UP";
-        case GLFW_KEY_PAGE_DOWN:          return "PAGE DOWN";
-        case GLFW_KEY_HOME:               return "HOME";
-        case GLFW_KEY_END:                return "END";
-        case GLFW_KEY_KP_0:               return "KEYPAD 0";
-        case GLFW_KEY_KP_1:               return "KEYPAD 1";
-        case GLFW_KEY_KP_2:               return "KEYPAD 2";
-        case GLFW_KEY_KP_3:               return "KEYPAD 3";
-        case GLFW_KEY_KP_4:               return "KEYPAD 4";
-        case GLFW_KEY_KP_5:               return "KEYPAD 5";
-        case GLFW_KEY_KP_6:               return "KEYPAD 6";
-        case GLFW_KEY_KP_7:               return "KEYPAD 7";
-        case GLFW_KEY_KP_8:               return "KEYPAD 8";
-        case GLFW_KEY_KP_9:               return "KEYPAD 9";
-        case GLFW_KEY_KP_DIVIDE:          return "KEYPAD DIVIDE";
-        case GLFW_KEY_KP_MULTIPLY:        return "KEYPAD MULTIPLY";
-        case GLFW_KEY_KP_SUBTRACT:        return "KEYPAD SUBTRACT";
-        case GLFW_KEY_KP_ADD:             return "KEYPAD ADD";
-        case GLFW_KEY_KP_DECIMAL:         return "KEYPAD DECIMAL";
-        case GLFW_KEY_KP_EQUAL:           return "KEYPAD EQUAL";
-        case GLFW_KEY_KP_ENTER:           return "KEYPAD ENTER";
-        case GLFW_KEY_PRINT_SCREEN:       return "PRINT SCREEN";
-        case GLFW_KEY_NUM_LOCK:           return "NUM LOCK";
-        case GLFW_KEY_CAPS_LOCK:          return "CAPS LOCK";
-        case GLFW_KEY_SCROLL_LOCK:        return "SCROLL LOCK";
-        case GLFW_KEY_PAUSE:              return "PAUSE";
-        case GLFW_KEY_LEFT_SUPER:         return "LEFT SUPER";
-        case GLFW_KEY_RIGHT_SUPER:        return "RIGHT SUPER";
-        case GLFW_KEY_MENU:               return "MENU";
-
-        default:                          return "UNKNOWN";
+        /* start functional key names (auto generated by gen-key-constants.py do not edit) */
+    case GLFW_FKEY_ESCAPE: return "ESCAPE";
+    case GLFW_FKEY_ENTER: return "ENTER";
+    case GLFW_FKEY_TAB: return "TAB";
+    case GLFW_FKEY_BACKSPACE: return "BACKSPACE";
+    case GLFW_FKEY_INSERT: return "INSERT";
+    case GLFW_FKEY_DELETE: return "DELETE";
+    case GLFW_FKEY_LEFT: return "LEFT";
+    case GLFW_FKEY_RIGHT: return "RIGHT";
+    case GLFW_FKEY_UP: return "UP";
+    case GLFW_FKEY_DOWN: return "DOWN";
+    case GLFW_FKEY_PAGE_UP: return "PAGE_UP";
+    case GLFW_FKEY_PAGE_DOWN: return "PAGE_DOWN";
+    case GLFW_FKEY_HOME: return "HOME";
+    case GLFW_FKEY_END: return "END";
+    case GLFW_FKEY_CAPS_LOCK: return "CAPS_LOCK";
+    case GLFW_FKEY_SCROLL_LOCK: return "SCROLL_LOCK";
+    case GLFW_FKEY_NUM_LOCK: return "NUM_LOCK";
+    case GLFW_FKEY_PRINT_SCREEN: return "PRINT_SCREEN";
+    case GLFW_FKEY_PAUSE: return "PAUSE";
+    case GLFW_FKEY_MENU: return "MENU";
+    case GLFW_FKEY_F1: return "F1";
+    case GLFW_FKEY_F2: return "F2";
+    case GLFW_FKEY_F3: return "F3";
+    case GLFW_FKEY_F4: return "F4";
+    case GLFW_FKEY_F5: return "F5";
+    case GLFW_FKEY_F6: return "F6";
+    case GLFW_FKEY_F7: return "F7";
+    case GLFW_FKEY_F8: return "F8";
+    case GLFW_FKEY_F9: return "F9";
+    case GLFW_FKEY_F10: return "F10";
+    case GLFW_FKEY_F11: return "F11";
+    case GLFW_FKEY_F12: return "F12";
+    case GLFW_FKEY_F13: return "F13";
+    case GLFW_FKEY_F14: return "F14";
+    case GLFW_FKEY_F15: return "F15";
+    case GLFW_FKEY_F16: return "F16";
+    case GLFW_FKEY_F17: return "F17";
+    case GLFW_FKEY_F18: return "F18";
+    case GLFW_FKEY_F19: return "F19";
+    case GLFW_FKEY_F20: return "F20";
+    case GLFW_FKEY_F21: return "F21";
+    case GLFW_FKEY_F22: return "F22";
+    case GLFW_FKEY_F23: return "F23";
+    case GLFW_FKEY_F24: return "F24";
+    case GLFW_FKEY_F25: return "F25";
+    case GLFW_FKEY_F26: return "F26";
+    case GLFW_FKEY_F27: return "F27";
+    case GLFW_FKEY_F28: return "F28";
+    case GLFW_FKEY_F29: return "F29";
+    case GLFW_FKEY_F30: return "F30";
+    case GLFW_FKEY_F31: return "F31";
+    case GLFW_FKEY_F32: return "F32";
+    case GLFW_FKEY_F33: return "F33";
+    case GLFW_FKEY_F34: return "F34";
+    case GLFW_FKEY_F35: return "F35";
+    case GLFW_FKEY_KP_0: return "KP_0";
+    case GLFW_FKEY_KP_1: return "KP_1";
+    case GLFW_FKEY_KP_2: return "KP_2";
+    case GLFW_FKEY_KP_3: return "KP_3";
+    case GLFW_FKEY_KP_4: return "KP_4";
+    case GLFW_FKEY_KP_5: return "KP_5";
+    case GLFW_FKEY_KP_6: return "KP_6";
+    case GLFW_FKEY_KP_7: return "KP_7";
+    case GLFW_FKEY_KP_8: return "KP_8";
+    case GLFW_FKEY_KP_9: return "KP_9";
+    case GLFW_FKEY_KP_DECIMAL: return "KP_DECIMAL";
+    case GLFW_FKEY_KP_DIVIDE: return "KP_DIVIDE";
+    case GLFW_FKEY_KP_MULTIPLY: return "KP_MULTIPLY";
+    case GLFW_FKEY_KP_SUBTRACT: return "KP_SUBTRACT";
+    case GLFW_FKEY_KP_ADD: return "KP_ADD";
+    case GLFW_FKEY_KP_ENTER: return "KP_ENTER";
+    case GLFW_FKEY_KP_EQUAL: return "KP_EQUAL";
+    case GLFW_FKEY_KP_SEPARATOR: return "KP_SEPARATOR";
+    case GLFW_FKEY_KP_LEFT: return "KP_LEFT";
+    case GLFW_FKEY_KP_RIGHT: return "KP_RIGHT";
+    case GLFW_FKEY_KP_UP: return "KP_UP";
+    case GLFW_FKEY_KP_DOWN: return "KP_DOWN";
+    case GLFW_FKEY_KP_PAGE_UP: return "KP_PAGE_UP";
+    case GLFW_FKEY_KP_PAGE_DOWN: return "KP_PAGE_DOWN";
+    case GLFW_FKEY_KP_HOME: return "KP_HOME";
+    case GLFW_FKEY_KP_END: return "KP_END";
+    case GLFW_FKEY_KP_INSERT: return "KP_INSERT";
+    case GLFW_FKEY_KP_DELETE: return "KP_DELETE";
+    case GLFW_FKEY_KP_BEGIN: return "KP_BEGIN";
+    case GLFW_FKEY_MEDIA_PLAY: return "MEDIA_PLAY";
+    case GLFW_FKEY_MEDIA_PAUSE: return "MEDIA_PAUSE";
+    case GLFW_FKEY_MEDIA_PLAY_PAUSE: return "MEDIA_PLAY_PAUSE";
+    case GLFW_FKEY_MEDIA_REVERSE: return "MEDIA_REVERSE";
+    case GLFW_FKEY_MEDIA_STOP: return "MEDIA_STOP";
+    case GLFW_FKEY_MEDIA_FAST_FORWARD: return "MEDIA_FAST_FORWARD";
+    case GLFW_FKEY_MEDIA_REWIND: return "MEDIA_REWIND";
+    case GLFW_FKEY_MEDIA_TRACK_NEXT: return "MEDIA_TRACK_NEXT";
+    case GLFW_FKEY_MEDIA_TRACK_PREVIOUS: return "MEDIA_TRACK_PREVIOUS";
+    case GLFW_FKEY_MEDIA_RECORD: return "MEDIA_RECORD";
+    case GLFW_FKEY_LOWER_VOLUME: return "LOWER_VOLUME";
+    case GLFW_FKEY_RAISE_VOLUME: return "RAISE_VOLUME";
+    case GLFW_FKEY_MUTE_VOLUME: return "MUTE_VOLUME";
+    case GLFW_FKEY_LEFT_SHIFT: return "LEFT_SHIFT";
+    case GLFW_FKEY_LEFT_CONTROL: return "LEFT_CONTROL";
+    case GLFW_FKEY_LEFT_ALT: return "LEFT_ALT";
+    case GLFW_FKEY_LEFT_SUPER: return "LEFT_SUPER";
+    case GLFW_FKEY_LEFT_HYPER: return "LEFT_HYPER";
+    case GLFW_FKEY_LEFT_META: return "LEFT_META";
+    case GLFW_FKEY_RIGHT_SHIFT: return "RIGHT_SHIFT";
+    case GLFW_FKEY_RIGHT_CONTROL: return "RIGHT_CONTROL";
+    case GLFW_FKEY_RIGHT_ALT: return "RIGHT_ALT";
+    case GLFW_FKEY_RIGHT_SUPER: return "RIGHT_SUPER";
+    case GLFW_FKEY_RIGHT_HYPER: return "RIGHT_HYPER";
+    case GLFW_FKEY_RIGHT_META: return "RIGHT_META";
+    case GLFW_FKEY_ISO_LEVEL3_SHIFT: return "ISO_LEVEL3_SHIFT";
+    case GLFW_FKEY_ISO_LEVEL5_SHIFT: return "ISO_LEVEL5_SHIFT";
+/* end functional key names */
+        case 0:                          return "UNKNOWN";
     }
+    static char buf[16];
+    encode_utf8(key, buf);
+    return buf;
 }
 
 // Center the cursor in the content area of the specified window
@@ -736,13 +720,15 @@ GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
 
         if (!value)
         {
-            int i;
-
             // Release all sticky keys
-            for (i = 0;  i <= GLFW_KEY_LAST;  i++)
+            for (unsigned i = arraysz(window->activated_keys) - 1;  i-- > 0;)
             {
-                if (window->keys[i] == _GLFW_STICK)
-                    window->keys[i] = GLFW_RELEASE;
+                if (window->activated_keys[i].action == _GLFW_STICK) {
+                    if (i < arraysz(window->activated_keys) - 1) {
+                        memmove(window->activated_keys + i, window->activated_keys + i + 1, sizeof(window->activated_keys[0]) * (arraysz(window->activated_keys) - 1 - i));
+                    }
+                    memset(window->activated_keys + arraysz(window->activated_keys) - 1, 0, sizeof(window->activated_keys[0]));
+                }
             }
         }
 
@@ -798,59 +784,50 @@ GLFWAPI int glfwRawMouseMotionSupported(void)
     return _glfwPlatformRawMouseMotionSupported();
 }
 
-GLFWAPI const char* glfwGetKeyName(int key, int native_key)
+GLFWAPI const char* glfwGetKeyName(uint32_t key, int native_key)
 {
     _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    if (key) return _glfwGetKeyName(key);
 
-    if (key != GLFW_KEY_UNKNOWN)
-    {
-        if (key != GLFW_KEY_KP_EQUAL &&
-            (key < GLFW_KEY_KP_0 || key > GLFW_KEY_KP_ADD) &&
-            (key < GLFW_KEY_APOSTROPHE || key > GLFW_KEY_LAST_PRINTABLE))
-        {
-            return NULL;
-        }
-
-        native_key = _glfwPlatformGetNativeKeyForKey(key);
-    }
-
+    native_key = _glfwPlatformGetNativeKeyForKey(key);
     return _glfwPlatformGetNativeKeyName(native_key);
 }
 
-GLFWAPI int glfwGetNativeKeyForKey(int key)
+GLFWAPI int glfwGetNativeKeyForKey(uint32_t key)
 {
     _GLFW_REQUIRE_INIT_OR_RETURN(-1);
 
-    if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
-    {
-        _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
-        return GLFW_RELEASE;
-    }
-
     return _glfwPlatformGetNativeKeyForKey(key);
 }
 
-GLFWAPI int glfwGetKey(GLFWwindow* handle, int key)
+GLFWAPI GLFWKeyAction glfwGetKey(GLFWwindow* handle, uint32_t key)
 {
     _GLFWwindow* window = (_GLFWwindow*) handle;
     assert(window != NULL);
 
     _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
+    if (!key) return GLFW_RELEASE;
 
-    if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
-    {
-        _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
-        return GLFW_RELEASE;
+    int current_action = GLFW_RELEASE;
+    const unsigned sz = arraysz(window->activated_keys);
+    int idx = -1;
+    for (unsigned i = 0; i < sz; i++) {
+        if (window->activated_keys[i].key == key) {
+            idx = i;
+            current_action = window->activated_keys[i].action;
+            break;
+        }
     }
 
-    if (window->keys[key] == _GLFW_STICK)
+
+    if (current_action == _GLFW_STICK)
     {
         // Sticky mode: release key now
-        window->keys[key] = GLFW_RELEASE;
-        return GLFW_PRESS;
+        set_key_action(window, key, GLFW_RELEASE, idx);
+        current_action = GLFW_PRESS;
     }
 
-    return (int) window->keys[key];
+    return current_action;
 }
 
 GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button)
@@ -1036,13 +1013,13 @@ GLFWAPI GLFWkeyboardfun glfwSetKeyboardCallback(GLFWwindow* handle, GLFWkeyboard
     return cbfun;
 }
 
-GLFWAPI void glfwUpdateIMEState(GLFWwindow* handle, int which, int a, int b, int c, int d) {
+GLFWAPI void glfwUpdateIMEState(GLFWwindow* handle, const GLFWIMEUpdateEvent *ev) {
     _GLFWwindow* window = (_GLFWwindow*) handle;
     assert(window != NULL);
 
     _GLFW_REQUIRE_INIT();
 #if defined(_GLFW_X11) || defined(_GLFW_WAYLAND) || defined(_GLFW_COCOA)
-    _glfwPlatformUpdateIMEState(window, which, a, b, c, d);
+    _glfwPlatformUpdateIMEState(window, ev);
 #else
     (void)window; (void)which; (void)a; (void)b; (void)c; (void)d;
 #endif

glfw/internal.h

@@ -276,6 +276,7 @@ struct _GLFWinitconfig
     bool          hatButtons;
     int           angleType;
     bool          debugKeyboard;
+    bool          debugRendering;
     struct {
         bool      menubar;
         bool      chdir;
@@ -401,6 +402,11 @@ struct _GLFWcontext
     _GLFWcontextOSMesa osmesa;
 };
 
+typedef struct GLFWKeyState {
+    uint32_t key;
+    char action;
+} GLFWKeyState;
+
 // Window and context structure
 //
 struct _GLFWwindow
@@ -431,7 +437,7 @@ struct _GLFWwindow
     bool                lockKeyMods;
     int                 cursorMode;
     char                mouseButtons[GLFW_MOUSE_BUTTON_LAST + 1];
-    char                keys[GLFW_KEY_LAST + 1];
+    GLFWKeyState        activated_keys[16];
     // Virtual cursor position when cursor is disabled
     double              virtualCursorPosX, virtualCursorPosY;
     bool                rawMouseMotion;
@@ -609,6 +615,7 @@ struct _GLFWlibrary
         GLFWmonitorfun  monitor;
         GLFWjoystickfun joystick;
         GLFWapplicationclosefun application_close;
+        GLFWdrawtextfun draw_text;
     } callbacks;
 
 
@@ -649,7 +656,7 @@ void _glfwPlatformDestroyCursor(_GLFWcursor* cursor);
 void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor);
 
 const char* _glfwPlatformGetNativeKeyName(int native_key);
-int _glfwPlatformGetNativeKeyForKey(int key);
+int _glfwPlatformGetNativeKeyForKey(uint32_t key);
 
 void _glfwPlatformFreeMonitor(_GLFWmonitor* monitor);
 void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos);
@@ -723,7 +730,8 @@ void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowFloating(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowMousePassthrough(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity);
-void _glfwPlatformUpdateIMEState(_GLFWwindow *w, int which, int a, int b, int c, int d);
+void _glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev);
+void _glfwPlatformChangeCursorTheme(void);
 
 void _glfwPlatformPollEvents(void);
 void _glfwPlatformWaitEvents(void);
@@ -771,7 +779,6 @@ void _glfwInputWindowDamage(_GLFWwindow* window);
 void _glfwInputWindowCloseRequest(_GLFWwindow* window);
 void _glfwInputWindowMonitor(_GLFWwindow* window, _GLFWmonitor* monitor);
 
-void _glfwInitializeKeyEvent(GLFWkeyevent *ev, int key, int native_key, int action, int mods);
 void _glfwInputKeyboard(_GLFWwindow *window, GLFWkeyevent *ev);
 void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset, int flags, int mods);
 void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods);

glfw/linux_desktop_settings.c

@@ -0,0 +1,109 @@
+/*
+ * linux_cursor_settings.c
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#include "linux_desktop_settings.h"
+#include <stdlib.h>
+#include <strings.h>
+#include <string.h>
+
+static const char *DESKTOP_SERVICE = "org.freedesktop.portal.Desktop";
+static const char *DESKTOP_PATH = "/org/freedesktop/portal/desktop";
+static const char *DESKTOP_INTERFACE = "org.freedesktop.portal.Settings";
+static const char *GNOME_DESKTOP_NAMESPACE = "org.gnome.desktop.interface";
+
+
+static char theme_name[64] = {0};
+static int theme_size = -1;
+static bool gnome_cursor_theme_read = false, gnome_cursor_size_read = false;
+
+static bool
+parse_dbus_message_for_type(DBusMessage *const reply, const char *errmsg, const int type, void *value) {
+	DBusMessageIter iter[3];
+	dbus_message_iter_init(reply, &iter[0]);
+#define FAIL { _glfwInputError(GLFW_PLATFORM_ERROR, "%s", errmsg); return false; }
+	if (dbus_message_iter_get_arg_type(&iter[0]) != DBUS_TYPE_VARIANT) FAIL;
+	dbus_message_iter_recurse(&iter[0], &iter[1]);
+	if (dbus_message_iter_get_arg_type(&iter[1]) != DBUS_TYPE_VARIANT) FAIL;
+	dbus_message_iter_recurse(&iter[1], &iter[2]);
+	if (dbus_message_iter_get_arg_type(&iter[2]) != type) FAIL;
+	dbus_message_iter_get_basic(&iter[2], value);
+	return true;
+#undef FAIL
+}
+
+#define HANDLER(name) void name(DBusMessage *msg, const char* errmsg, void *data) { \
+    (void)data; \
+    if (errmsg) { \
+        _glfwInputError(GLFW_PLATFORM_ERROR, "%s: failed with error: %s", #name, errmsg); \
+        return; \
+    }
+
+HANDLER(on_gnome_cursor_theme_read)
+    const char *name;
+    if (!parse_dbus_message_for_type(msg, "Failed to get cursor theme name from reply", DBUS_TYPE_STRING, &name)) return;
+    if (name && name[0]) {
+        gnome_cursor_theme_read = true;
+        strncpy(theme_name, name, sizeof(theme_name) - 1);
+        if (gnome_cursor_size_read) _glfwPlatformChangeCursorTheme();
+    }
+}
+
+HANDLER(on_gnome_cursor_size_read)
+    int32_t sz;
+    if (!parse_dbus_message_for_type(msg, "Failed to get cursor theme size from reply", DBUS_TYPE_INT32, &sz)) return;
+    gnome_cursor_size_read = true;
+    theme_size = sz;
+    if (gnome_cursor_theme_read) _glfwPlatformChangeCursorTheme();
+}
+#undef HANDLER
+
+
+static bool
+call_read(DBusConnection *session_bus, dbus_pending_callback callback, const char *namespace, const char *key) {
+    return glfw_dbus_call_method_with_reply(
+            session_bus, DESKTOP_SERVICE, DESKTOP_PATH, DESKTOP_INTERFACE, "Read", DBUS_TIMEOUT_USE_DEFAULT,
+            callback, NULL, DBUS_TYPE_STRING, &namespace, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID);
+}
+
+static void
+get_from_gnome(void) {
+    theme_size = 32;
+    DBusConnection *session_bus = glfw_dbus_session_bus();
+    if (session_bus) {
+        const char *theme_key = "cursor-theme";
+        call_read(session_bus, on_gnome_cursor_theme_read, GNOME_DESKTOP_NAMESPACE, theme_key);
+        const char *size_key = "cursor-size";
+        call_read(session_bus, on_gnome_cursor_size_read, GNOME_DESKTOP_NAMESPACE, size_key);
+    }
+}
+
+
+void
+glfw_current_cursor_theme(const char **theme, int *size) {
+    *theme = theme_name[0] ? theme_name : NULL;
+    *size =  (theme_size > 0 && theme_size < 2048) ? theme_size : 32;
+}
+
+static void
+get_cursor_theme_from_env(void) {
+    const char *q = getenv("XCURSOR_THEME");
+    if (q) strncpy(theme_name, q, sizeof(theme_name)-1);
+    const char *env = getenv("XCURSOR_SIZE");
+    theme_size = 32;
+    if (env) {
+        const int retval = atoi(env);
+        if (retval > 0 && retval < 2048) theme_size = retval;
+    }
+}
+
+void
+glfw_initialize_desktop_settings(void) {
+    get_cursor_theme_from_env();
+    const char *desktop = getenv("XDG_CURRENT_DESKTOP");
+    bool is_gnome = desktop && strncasecmp(desktop, "GNOME", sizeof("GNOME") - 1) == 0;
+    if (is_gnome) get_from_gnome();
+}

glfw/linux_desktop_settings.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#pragma once
+
+#include "dbus_glfw.h"
+#include "internal.h"
+
+
+void glfw_initialize_desktop_settings(void);
+void glfw_current_cursor_theme(const char **theme, int *size);

glfw/memfd.h

@@ -10,8 +10,8 @@
 
 #include <unistd.h>
 #include <sys/syscall.h>
-static inline int memfd_create(const char *name, unsigned int flags) {
-    return syscall(__NR_memfd_create, name, flags);
+static inline int glfw_memfd_create(const char *name, unsigned int flags) {
+    return (int)syscall(__NR_memfd_create, name, flags);
 }
 
 #ifndef F_LINUX_SPECIFIC_BASE
@@ -39,8 +39,7 @@ static inline int memfd_create(const char *name, unsigned int flags) {
 #include <unistd.h>
 #include <fcntl.h>
 
-static inline int
-createTmpfileCloexec(char* tmpname)
+static inline int createTmpfileCloexec(char* tmpname)
 {
     int fd;
 

glfw/source-info.json

@@ -55,6 +55,7 @@
       "wl_platform.h",
       "posix_thread.h",
       "wl_cursors.h",
+      "wl_text_input.h",
       "xkb_glfw.h",
       "dbus_glfw.h",
       "ibus_glfw.h",
@@ -64,6 +65,8 @@
       "linux_joystick.h",
       "null_joystick.h",
       "linux_notify.h",
+      "linux_desktop_settings.h",
+      "wl_client_side_decorations.h",
       "main_loop.h"
     ],
     "protocols": [
@@ -73,13 +76,16 @@
       "unstable/pointer-constraints/pointer-constraints-unstable-v1.xml",
       "unstable/idle-inhibit/idle-inhibit-unstable-v1.xml",
       "unstable/xdg-decoration/xdg-decoration-unstable-v1.xml",
-      "unstable/primary-selection/primary-selection-unstable-v1.xml"
+      "unstable/primary-selection/primary-selection-unstable-v1.xml",
+      "unstable/text-input/text-input-unstable-v3.xml"
     ],
     "sources": [
       "wl_init.c",
       "wl_monitor.c",
       "wl_window.c",
       "wl_cursors.c",
+      "wl_text_input.c",
+      "wl_client_side_decorations.c",
       "posix_thread.c",
       "xkb_glfw.c",
       "dbus_glfw.c",
@@ -88,6 +94,7 @@
       "osmesa_context.c",
       "backend_utils.c",
       "linux_joystick.c",
+      "linux_desktop_settings.c",
       "null_joystick.c",
       "linux_notify.c"
     ]

glfw/window.c

@@ -50,21 +50,19 @@ void _glfwInputWindowFocus(_GLFWwindow* window, bool focused)
 
     if (!focused)
     {
-        int key, button;
         _glfw.focusedWindowId = 0;
 
-        for (key = 0;  key <= GLFW_KEY_LAST;  key++)
+        for (unsigned i = 0; i < arraysz(window->activated_keys); i++)
         {
-            if (window->keys[key] == GLFW_PRESS)
+            if (window->activated_keys[i].key > 0 && window->activated_keys[i].action == GLFW_PRESS)
             {
-                const int native_key = _glfwPlatformGetNativeKeyForKey(key);
-                GLFWkeyevent ev;
-                _glfwInitializeKeyEvent(&ev, key, native_key, GLFW_RELEASE, 0);
+                const int native_key = _glfwPlatformGetNativeKeyForKey(window->activated_keys[i].key);
+                GLFWkeyevent ev = {.key = window->activated_keys[i].key, .native_key = native_key, .action = GLFW_RELEASE};
                 _glfwInputKeyboard(window, &ev);
             }
         }
 
-        for (button = 0;  button <= GLFW_MOUSE_BUTTON_LAST;  button++)
+        for (int button = 0;  button <= GLFW_MOUSE_BUTTON_LAST;  button++)
         {
             if (window->mouseButtons[button] == GLFW_PRESS)
                 _glfwInputMouseClick(window, button, GLFW_RELEASE, 0);
@@ -703,8 +701,8 @@ GLFWAPI void glfwSetWindowSizeIncrements(GLFWwindow* handle, int widthincr, int
 {
     _GLFWwindow* window = (_GLFWwindow*) handle;
     assert(window != NULL);
-    assert(widthincr >= 0);
-    assert(heightincr >= 0);
+    assert(widthincr >= 0 || widthincr == GLFW_DONT_CARE);
+    assert(heightincr >= 0 || heightincr == GLFW_DONT_CARE);
 
     _GLFW_REQUIRE_INIT();
 

glfw/wl_client_side_decorations.c

@@ -0,0 +1,438 @@
+/*
+ * wl_client_side_decorations.c
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#include "wl_client_side_decorations.h"
+
+#include "backend_utils.h"
+#include <sys/mman.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define debug(...) if (_glfw.hints.init.debugRendering) fprintf(stderr, __VA_ARGS__);
+#define decs window->wl.decorations
+
+#define ARGB(a, r, g, b) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
+#define A(x) (((x) >> 24) & 0xff)
+#define R(x) (((x) >> 16) & 0xff)
+#define G(x) (((x) >> 8) & 0xff)
+#define B(x) ((x) & 0xff)
+#define SWAP(x, y) do { __typeof__(x) SWAP = x; x = y; y = SWAP; } while (0)
+
+static const uint32_t passive_bg_color = 0xffeeeeee;
+static const uint32_t active_bg_color = 0xffdddad6;
+typedef float kernel_type;
+
+static void
+build_blur_kernel(kernel_type *blur_kernel, const size_t size, kernel_type sigma) {
+    // 1D Normalized Gaussian
+    const kernel_type half = size / (kernel_type)2;
+	kernel_type sum = 0;
+	for (size_t i = 0; i < size; i++) {
+		kernel_type f = (i - half);
+		blur_kernel[i] = (kernel_type)exp(- f * f / sigma);
+		sum += blur_kernel[i];
+	}
+	for (size_t i = 0; i < size; i++) blur_kernel[i] /= sum;
+}
+
+static void
+blur_mask(kernel_type *image_data, ssize_t width, ssize_t height, ssize_t kernel_size, kernel_type sigma, kernel_type *scratch, kernel_type *blur_kernel, ssize_t margin) {
+    (void)margin;
+    build_blur_kernel(blur_kernel, kernel_size, sigma);
+    const size_t half = kernel_size / 2;
+
+    for (ssize_t y = 0; y < height; y++) {
+        kernel_type *s = image_data + y * width, *d = scratch + y * width;
+        for (ssize_t x = 0; x < width; x++) {
+            kernel_type a = 0;
+            for (ssize_t k = 0; k < kernel_size; k++) {
+                const ssize_t px = x + k - half;
+                if (0 <= px && px < width) a += s[px] * blur_kernel[k];
+            }
+            d[x] = a;
+        }
+    }
+
+    for (ssize_t y = 0; y < height; y++) {
+        kernel_type *d = image_data + y * width;
+        for (ssize_t x = 0; x < width; x++) {
+            kernel_type a = 0;
+            for (ssize_t k = 0; k < kernel_size; k++) {
+                const ssize_t py = y + k - half;
+                if (0 <= py && py < height) {
+                    kernel_type *s = scratch + py * width;
+                    a += s[x] * blur_kernel[k];
+                }
+            }
+            d[x] = a;
+        }
+    }
+}
+
+static kernel_type*
+create_shadow_mask(size_t width, size_t height, size_t margin, size_t kernel_size, kernel_type base_alpha, kernel_type sigma) {
+    kernel_type *mask = calloc(sizeof(kernel_type), 2 * width * height + kernel_size);
+    if (!mask) return NULL;
+    for (size_t y = margin; y < height - margin; y++) {
+        kernel_type *row = mask + y * width;
+        for (size_t x = margin; x < width - margin; x++) row[x] = base_alpha;
+    }
+    blur_mask(mask, width, height, kernel_size, sigma, mask + width * height, (kernel_type*)(mask + 2 * width * height), margin);
+    return mask;
+}
+
+static void
+swap_buffers(_GLFWWaylandBufferPair *pair) {
+    SWAP(pair->front, pair->back);
+    SWAP(pair->data.front, pair->data.back);
+}
+
+static size_t
+init_buffer_pair(_GLFWWaylandBufferPair *pair, size_t width, size_t height, unsigned scale) {
+    memset(pair, 0, sizeof(_GLFWWaylandBufferPair));
+    pair->width = width * scale;
+    pair->height = height * scale;
+    pair->stride = 4 * pair->width;
+    pair->size_in_bytes = pair->stride * pair->height;
+    return 2 * pair->size_in_bytes;
+}
+
+static void
+alloc_buffer_pair(_GLFWWaylandBufferPair *pair, struct wl_shm_pool *pool, uint8_t *data, size_t *offset) {
+    pair->data.a = data + *offset;
+    pair->a = wl_shm_pool_create_buffer(pool, *offset, pair->width, pair->height, pair->stride, WL_SHM_FORMAT_ARGB8888);
+    *offset += pair->size_in_bytes;
+    pair->data.b = data + *offset;
+    pair->b = wl_shm_pool_create_buffer(pool, *offset, pair->width, pair->height, pair->stride, WL_SHM_FORMAT_ARGB8888);
+    *offset += pair->size_in_bytes;
+    pair->front = pair->a; pair->back = pair->b;
+    pair->data.front = pair->data.a; pair->data.back = pair->data.b;
+}
+
+#define st decs.shadow_tile
+
+void
+initialize_csd_metrics(_GLFWwindow *window) {
+    decs.metrics.width = 12;
+    decs.metrics.top = 36;
+    decs.metrics.visible_titlebar_height = window->wl.decorations.metrics.top - window->wl.decorations.metrics.width;
+    decs.metrics.horizontal = 2 * window->wl.decorations.metrics.width;
+    decs.metrics.vertical = window->wl.decorations.metrics.width + window->wl.decorations.metrics.top;
+}
+
+static size_t
+create_shadow_tile(_GLFWwindow *window) {
+    const size_t margin = decs.bottom.buffer.height;
+    if (st.data && st.for_decoration_size == margin) return margin;
+    st.for_decoration_size = margin;
+    free(st.data);
+    st.segments = 7;
+    st.stride = st.segments * margin;
+    st.corner_size = margin * (st.segments - 1) / 2;
+    kernel_type* mask = create_shadow_mask(st.stride, st.stride, margin, 2 * margin + 1, (kernel_type)0.7, 32 * margin);
+    st.data = malloc(sizeof(uint32_t) * st.stride * st.stride);
+    if (st.data) for (size_t i = 0; i < st.stride * st.stride; i++) st.data[i] = ((uint8_t)(mask[i] * 255)) << 24;
+    free(mask);
+    return margin;
+}
+
+
+static void
+render_title_bar(_GLFWwindow *window, bool to_front_buffer) {
+    const bool is_focused = window->id == _glfw.focusedWindowId;
+    uint32_t bg_color = is_focused ? active_bg_color : passive_bg_color;
+    uint32_t fg_color = is_focused ? 0xff444444 : 0xff888888;
+    if (decs.use_custom_titlebar_color) {
+        bg_color = 0xff000000 | (decs.titlebar_color & 0xffffff);
+        double red = ((bg_color >> 16) & 0xFF) / 255.0;
+        double green = ((bg_color >> 8) & 0xFF) / 255.0;
+        double blue = (bg_color & 0xFF) / 255.0;
+        double luma = 0.2126 * red + 0.7152 * green + 0.0722 * blue;
+        if (luma < 0.5) {
+            fg_color = is_focused ? 0xffeeeeee : 0xff888888;
+        }
+    }
+    uint8_t *output = to_front_buffer ? decs.top.buffer.data.front : decs.top.buffer.data.back;
+
+    // render shadow part
+    const size_t margin = create_shadow_tile(window);
+    const size_t edge_segment_size = st.corner_size - margin;
+    const uint8_t divisor = is_focused ? 1 : 2;
+    for (size_t y = 0; y < margin; y++) {
+        // left segment
+        uint32_t *s = st.data + y * st.stride + margin;
+        uint32_t *d = (uint32_t*)(output + y * decs.top.buffer.stride);
+        for (size_t x = 0; x < edge_segment_size; x++) d[x] = (A(s[x]) / divisor) << 24;
+        // middle segment
+        s += edge_segment_size;
+        size_t limit = decs.top.buffer.width > edge_segment_size ? decs.top.buffer.width - edge_segment_size : 0;
+        for (size_t x = edge_segment_size, sx = 0; x < limit; x++, sx = (sx + 1) % margin) d[x] = (A(s[sx]) / divisor) << 24;
+        // right segment
+        s += margin;
+        for (size_t x = limit; x < decs.top.buffer.width; x++, s++) d[x] = (A(*s) / divisor) << 24;
+    }
+
+    // render text part
+    output += decs.top.buffer.stride * margin;
+    if (window->wl.title && window->wl.title[0] && _glfw.callbacks.draw_text) {
+        if (_glfw.callbacks.draw_text((GLFWwindow*)window, window->wl.title, fg_color, bg_color, output, decs.top.buffer.width, decs.top.buffer.height - margin, 0, 0, 0)) return;
+    }
+    for (uint32_t *px = (uint32_t*)output, *end = (uint32_t*)(output + decs.top.buffer.size_in_bytes); px < end; px++) {
+        *px = bg_color;
+    }
+}
+
+static void
+update_title_bar(_GLFWwindow *window) {
+    render_title_bar(window, false);
+    swap_buffers(&decs.top.buffer);
+}
+
+static void
+render_edges(_GLFWwindow *window) {
+    const size_t margin = create_shadow_tile(window);
+    if (!st.data) return;  // out of memory
+
+    // bottom edge
+    uint32_t *src = st.data + (st.segments - 1) * margin * st.stride;
+    for (size_t y = 0; y < margin; y++) {
+        uint32_t *d = (uint32_t*)(decs.bottom.buffer.data.front + y * decs.bottom.buffer.stride);
+        uint32_t *s = src + st.stride * y;
+        // left corner
+        for (size_t x = 0; x < st.corner_size && x < decs.bottom.buffer.width; x++) d[x] = s[x];
+        // middle
+        size_t pos = st.corner_size, limit = decs.bottom.buffer.width > st.corner_size ? decs.bottom.buffer.width - st.corner_size : 0;
+        s += st.corner_size;
+        while (pos < limit) {
+            uint32_t *p = d + pos;
+            for (size_t x = 0; x < margin && pos + x < limit; x++) p[x] = s[x];
+            pos += margin;
+        }
+        // right corner
+        s += margin;
+        for (size_t x = 0; x < st.corner_size && limit + x < decs.bottom.buffer.width; x++) d[limit + x] = s[x];
+    }
+
+    // upper corners
+    for (size_t y = 0; y < st.corner_size && y < decs.left.buffer.height; y++) {
+        uint32_t *left_src = st.data + st.stride * y;
+        uint32_t *left_dest = (uint32_t*)(decs.left.buffer.data.front + y * decs.left.buffer.stride);
+        memcpy(left_dest, left_src, margin * sizeof(uint32_t));
+        uint32_t *right_src = left_src + 2 * st.corner_size;
+        uint32_t *right_dest = (uint32_t*)(decs.right.buffer.data.front + y * decs.right.buffer.stride);
+        memcpy(right_dest, right_src, margin * sizeof(uint32_t));
+    }
+
+    // lower corners
+    size_t src_height = st.corner_size - margin;
+    size_t dest_top = decs.left.buffer.height > src_height ? decs.left.buffer.height - src_height : 0;
+    size_t src_top = st.corner_size + margin;
+    for (size_t src_y = src_top, dest_y = dest_top; src_y < src_top + src_height && dest_y < decs.left.buffer.height; src_y++, dest_y++) {
+        uint32_t *s = st.data + st.stride * src_y;
+        uint32_t *d = (uint32_t*)(decs.left.buffer.data.front + dest_y * decs.left.buffer.stride);
+        memcpy(d, s, margin * sizeof(uint32_t));
+        s += 2 * st.corner_size;
+        d = (uint32_t*)(decs.right.buffer.data.front + dest_y * decs.left.buffer.stride);
+        memcpy(d, s, margin * sizeof(uint32_t));
+    }
+
+    // sides
+    size_t limit = decs.left.buffer.height > src_height ? decs.left.buffer.height - src_height : 0;
+    for (size_t dest_y = st.corner_size, src_y = 0; dest_y < limit; dest_y++, src_y = (src_y + 1) % margin) {
+        uint32_t *src = st.data + (st.corner_size + src_y) * st.stride;
+        uint32_t *left_dest = (uint32_t*)(decs.left.buffer.data.front + dest_y * decs.left.buffer.stride);
+        memcpy(left_dest, src, margin * sizeof(uint32_t));
+        src += 2 * st.corner_size;
+        uint32_t *right_dest = (uint32_t*)(decs.right.buffer.data.front + dest_y * decs.right.buffer.stride);
+        memcpy(right_dest, src, margin * sizeof(uint32_t));
+    }
+
+#define copy(which) for (uint32_t *src = (uint32_t*)decs.which.buffer.data.front, *dest = (uint32_t*)decs.which.buffer.data.back; src < (uint32_t*)(decs.which.buffer.data.front + decs.which.buffer.size_in_bytes); src++, dest++) *dest = (A(*src) / 2 ) << 24;
+    copy(left); copy(bottom); copy(right);
+#undef copy
+
+}
+#undef st
+
+static bool
+create_shm_buffers(_GLFWwindow* window) {
+    const unsigned scale = window->wl.scale >= 1 ? window->wl.scale : 1;
+
+    const size_t vertical_width = decs.metrics.width, vertical_height = window->wl.height + decs.metrics.top;
+    const size_t horizontal_height = decs.metrics.width, horizontal_width = window->wl.width + 2 * decs.metrics.width;
+
+    decs.mapping.size = 0;
+    decs.mapping.size += init_buffer_pair(&decs.top.buffer, window->wl.width, decs.metrics.top, scale);
+    decs.mapping.size += init_buffer_pair(&decs.left.buffer, vertical_width, vertical_height, scale);
+    decs.mapping.size += init_buffer_pair(&decs.bottom.buffer, horizontal_width, horizontal_height, scale);
+    decs.mapping.size += init_buffer_pair(&decs.right.buffer, vertical_width, vertical_height, scale);
+
+    int fd = createAnonymousFile(decs.mapping.size);
+    if (fd < 0) {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Creating a buffer file for %zu B failed: %s",
+                        decs.mapping.size, strerror(errno));
+        return false;
+    }
+    decs.mapping.data = mmap(NULL, decs.mapping.size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+    if (decs.mapping.data == MAP_FAILED) {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: mmap failed: %s", strerror(errno));
+        close(fd);
+        return false;
+    }
+    struct wl_shm_pool* pool = wl_shm_create_pool(_glfw.wl.shm, fd, decs.mapping.size);
+    close(fd);
+    size_t offset = 0;
+#define a(which) alloc_buffer_pair(&decs.which.buffer, pool, decs.mapping.data, &offset)
+    a(top); a(left); a(bottom); a(right);
+#undef a
+    wl_shm_pool_destroy(pool);
+    create_shadow_tile(window);
+    render_title_bar(window, true);
+    render_edges(window);
+    debug("Created decoration buffers at scale: %u vertical_height: %zu horizontal_width: %zu\n", scale, vertical_height, horizontal_width);
+    return true;
+}
+
+void
+free_csd_surfaces(_GLFWwindow *window) {
+#define d(which) {\
+    if (decs.which.subsurface) wl_subsurface_destroy(decs.which.subsurface); \
+    decs.which.subsurface = NULL; \
+    if (decs.which.surface) wl_surface_destroy(decs.which.surface); \
+    decs.which.surface = NULL; \
+}
+    d(left); d(top); d(right); d(bottom);
+#undef d
+}
+
+static void
+free_csd_buffers(_GLFWwindow *window) {
+#define d(which) { \
+    if (decs.which.buffer.a) wl_buffer_destroy(decs.which.buffer.a); \
+    if (decs.which.buffer.b) wl_buffer_destroy(decs.which.buffer.b); \
+    memset(&decs.which.buffer, 0, sizeof(_GLFWWaylandBufferPair)); \
+}
+    d(left); d(top); d(right); d(bottom);
+#undef d
+    if (decs.mapping.data) munmap(decs.mapping.data, decs.mapping.size);
+    decs.mapping.data = NULL; decs.mapping.size = 0;
+}
+
+static void
+position_csd_surface(_GLFWWaylandCSDEdge *s, int x, int y, int scale) {
+    wl_surface_set_buffer_scale(s->surface, scale);
+    s->x = x; s->y = y;
+    wl_subsurface_set_position(s->subsurface, s->x, s->y);
+}
+
+static void
+create_csd_surfaces(_GLFWwindow *window, _GLFWWaylandCSDEdge *s) {
+    s->surface = wl_compositor_create_surface(_glfw.wl.compositor);
+    s->subsurface = wl_subcompositor_get_subsurface(_glfw.wl.subcompositor, s->surface, window->wl.surface);
+}
+
+#define damage_csd(which, xbuffer) \
+    wl_surface_attach(decs.which.surface, xbuffer, 0, 0); \
+    wl_surface_damage(decs.which.surface, 0, 0, decs.which.buffer.width, decs.which.buffer.height); \
+    wl_surface_commit(decs.which.surface)
+
+bool
+ensure_csd_resources(_GLFWwindow *window) {
+    if (!window->decorated || window->wl.decorations.serverSide) return false;
+    const bool is_focused = window->id == _glfw.focusedWindowId;
+    const bool focus_changed = is_focused != decs.for_window_state.focused;
+    const bool size_changed = (
+        decs.for_window_state.width != window->wl.width ||
+        decs.for_window_state.height != window->wl.height ||
+        decs.for_window_state.scale != window->wl.scale ||
+        !decs.mapping.data
+    );
+    const bool needs_update = focus_changed || size_changed || !decs.left.surface;
+    if (!needs_update) return false;
+    if (size_changed) {
+        free_csd_buffers(window);
+        if (!create_shm_buffers(window)) return false;
+    }
+
+    int32_t x, y, scale = window->wl.scale < 1 ? 1 : window->wl.scale;
+    x = 0; y = -decs.metrics.top;
+    if (!decs.top.surface) create_csd_surfaces(window, &decs.top);
+    position_csd_surface(&decs.top, x, y, scale);
+
+    x = -decs.metrics.width; y = -decs.metrics.top;
+    if (!decs.left.surface) create_csd_surfaces(window, &decs.left);
+    position_csd_surface(&decs.left, x, y, scale);
+
+    x = -decs.metrics.width; y = window->wl.height;
+    if (!decs.bottom.surface) create_csd_surfaces(window, &decs.bottom);
+    position_csd_surface(&decs.bottom, x, y, scale);
+
+    x = window->wl.width; y = -decs.metrics.top;
+    if (!decs.right.surface) create_csd_surfaces(window, &decs.right);
+    position_csd_surface(&decs.right, x, y, scale);
+
+    if (focus_changed) update_title_bar(window);
+    damage_csd(top, decs.top.buffer.front);
+    damage_csd(left, is_focused ? decs.left.buffer.front : decs.left.buffer.back);
+    damage_csd(bottom, is_focused ? decs.bottom.buffer.front : decs.bottom.buffer.back);
+    damage_csd(right, is_focused ? decs.right.buffer.front : decs.right.buffer.back);
+
+    decs.for_window_state.width = window->wl.width;
+    decs.for_window_state.height = window->wl.height;
+    decs.for_window_state.scale = window->wl.scale;
+    decs.for_window_state.focused = is_focused;
+    return true;
+}
+
+void
+free_all_csd_resources(_GLFWwindow *window) {
+    free_csd_surfaces(window);
+    free_csd_buffers(window);
+    if (decs.shadow_tile.data) free(decs.shadow_tile.data);
+    decs.shadow_tile.data = NULL;
+}
+
+void
+change_csd_title(_GLFWwindow *window) {
+    if (!window->decorated || window->wl.decorations.serverSide) return;
+    if (ensure_csd_resources(window)) return;  // CSD were re-rendered for other reasons
+    if (decs.top.surface) {
+        update_title_bar(window);
+        damage_csd(top, decs.top.buffer.front);
+    }
+}
+
+void
+set_csd_window_geometry(_GLFWwindow *window, int32_t *width, int32_t *height) {
+    bool has_csd = window->decorated && !window->wl.decorations.serverSide && window->wl.decorations.left.surface && !(window->wl.toplevel_states & TOPLEVEL_STATE_FULLSCREEN);
+    bool size_specified_by_compositor = *width > 0 && *height > 0;
+    if (!size_specified_by_compositor) {
+        *width = window->wl.user_requested_content_size.width;
+        *height = window->wl.user_requested_content_size.height;
+        if (has_csd) *height += decs.metrics.visible_titlebar_height;
+    }
+    decs.geometry.x = 0; decs.geometry.y = 0;
+    decs.geometry.width = *width; decs.geometry.height = *height;
+    if (has_csd) {
+        decs.geometry.y = -decs.metrics.visible_titlebar_height;
+        *height -= decs.metrics.visible_titlebar_height;
+    }
+}
+
+void
+set_titlebar_color(_GLFWwindow *window, uint32_t color, bool use_system_color) {
+    bool use_custom_color = !use_system_color;
+    if (use_custom_color != decs.use_custom_titlebar_color || color != decs.titlebar_color) {
+        decs.use_custom_titlebar_color = use_custom_color;
+        decs.titlebar_color = color;
+    }
+    if (window->decorated && decs.top.surface) {
+        update_title_bar(window);
+        damage_csd(top, decs.top.buffer.front);
+    }
+}

glfw/wl_client_side_decorations.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#pragma once
+
+#include "internal.h"
+
+void initialize_csd_metrics(_GLFWwindow *window);
+void free_all_csd_resources(_GLFWwindow *window);
+void free_csd_surfaces(_GLFWwindow *window);
+void change_csd_title(_GLFWwindow *window);
+bool ensure_csd_resources(_GLFWwindow *window);
+void set_csd_window_geometry(_GLFWwindow *window, int32_t *width, int32_t *height);
+void set_titlebar_color(_GLFWwindow *window, uint32_t color, bool use_system_color);

glfw/wl_cursors.c

@@ -1,6 +1,7 @@
 // Future devs supporting whatever Wayland protocol stabilizes for cursor selection: see _themeAdd.
 
 #include "internal.h"
+#include "linux_desktop_settings.h"
 
 #include <assert.h>
 #include <errno.h>
@@ -8,38 +9,35 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+static GLFWWLCursorThemes cursor_themes;
+
 static int
 pixels_from_scale(int scale) {
-    static bool queried_env = false;
-    static int factor = 32;
-    if (!queried_env) {
-        const char *env = getenv("XCURSOR_SIZE");
-        if (env) {
-            const int retval = atoi(env);
-            if (retval > 0 && retval < 2048) factor = retval;
-        }
-        queried_env = true;
-    }
+    int factor;
+    const char* name;
+    glfw_current_cursor_theme(&name, &factor);
     return factor * scale;
 }
 
 
 struct wl_cursor_theme*
 glfw_wlc_theme_for_scale(int scale) {
-    GLFWWLCursorThemes *t = &_glfw.wl.cursor_themes;
-    for (size_t i = 0; i < t->count; i++) {
-        if (t->themes[i].scale == scale) return t->themes[i].theme;
+    for (size_t i = 0; i < cursor_themes.count; i++) {
+        if (cursor_themes.themes[i].scale == scale) return cursor_themes.themes[i].theme;
     }
 
-    if (t->count >= t->capacity) {
-        t->themes = realloc(t->themes, sizeof(GLFWWLCursorTheme) * (t->count + 16));
-        if (!t->themes) {
+    if (cursor_themes.count >= cursor_themes.capacity) {
+        cursor_themes.themes = realloc(cursor_themes.themes, sizeof(GLFWWLCursorTheme) * (cursor_themes.count + 16));
+        if (!cursor_themes.themes) {
             _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Out of memory allocating space for cursor themes");
             return NULL;
         }
-        t->capacity = t->count + 16;
+        cursor_themes.capacity = cursor_themes.count + 16;
     }
-    struct wl_cursor_theme *ans = wl_cursor_theme_load(getenv("XCURSOR_THEME"), pixels_from_scale(scale), _glfw.wl.shm);
+    int factor;
+    const char* name;
+    glfw_current_cursor_theme(&name, &factor);
+    struct wl_cursor_theme *ans = wl_cursor_theme_load(name, pixels_from_scale(scale), _glfw.wl.shm);
     if (!ans) {
         _glfwInputError(
             GLFW_PLATFORM_ERROR, "Wayland: wl_cursor_theme_load failed at scale: %d pixels: %d",
@@ -47,7 +45,7 @@ glfw_wlc_theme_for_scale(int scale) {
         );
         return NULL;
     }
-    GLFWWLCursorTheme *theme = t->themes + t->count++;
+    GLFWWLCursorTheme *theme = cursor_themes.themes + cursor_themes.count++;
     theme->scale = scale;
     theme->theme = ans;
     return ans;
@@ -55,11 +53,9 @@ glfw_wlc_theme_for_scale(int scale) {
 
 void
 glfw_wlc_destroy(void) {
-    GLFWWLCursorThemes *t = &_glfw.wl.cursor_themes;
-
-    for (size_t i = 0; i < t->count; i++) {
-        wl_cursor_theme_destroy(t->themes[i].theme);
+    for (size_t i = 0; i < cursor_themes.count; i++) {
+        wl_cursor_theme_destroy(cursor_themes.themes[i].theme);
     }
-    free(t->themes);
-    t->themes = NULL; t->capacity = 0; t->count = 0;
+    free(cursor_themes.themes);
+    cursor_themes.themes = NULL; cursor_themes.capacity = 0; cursor_themes.count = 0;
 }

glfw/wl_init.c

@@ -29,6 +29,7 @@
 #define _GNU_SOURCE
 #include "internal.h"
 #include "backend_utils.h"
+#include "linux_desktop_settings.h"
 #include "../kitty/monotonic.h"
 
 #include <assert.h>
@@ -58,37 +59,21 @@ static inline int min(int n1, int n2)
     return n1 < n2 ? n1 : n2;
 }
 
-static _GLFWwindow* findWindowFromDecorationSurface(struct wl_surface* surface,
-                                                    int* which)
+static _GLFWwindow*
+findWindowFromDecorationSurface(struct wl_surface* surface, _GLFWdecorationSideWayland* which)
 {
-    int focus;
+    _GLFWdecorationSideWayland focus;
+    if (!which) which = &focus;
     _GLFWwindow* window = _glfw.windowListHead;
-    if (!which)
-        which = &focus;
-    while (window)
-    {
-        if (surface == window->wl.decorations.top.surface)
-        {
-            *which = topDecoration;
-            break;
-        }
-        if (surface == window->wl.decorations.left.surface)
-        {
-            *which = leftDecoration;
-            break;
-        }
-        if (surface == window->wl.decorations.right.surface)
-        {
-            *which = rightDecoration;
-            break;
-        }
-        if (surface == window->wl.decorations.bottom.surface)
-        {
-            *which = bottomDecoration;
-            break;
-        }
+#define q(edge, result) if (surface == window->wl.decorations.edge.surface) { *which = result; break; }
+    while (window) {
+        q(top, TOP_DECORATION);
+        q(left, LEFT_DECORATION);
+        q(right, RIGHT_DECORATION);
+        q(bottom, BOTTOM_DECORATION);
         window = window->next;
     }
+#undef q
     return window;
 }
 
@@ -103,7 +88,7 @@ static void pointerHandleEnter(void* data UNUSED,
     if (!surface)
         return;
 
-    int focus = 0;
+    _GLFWdecorationSideWayland focus = CENTRAL_WINDOW;
     _GLFWwindow* window = wl_surface_get_user_data(surface);
     if (!window)
     {
@@ -173,6 +158,8 @@ static void setCursor(GLFWCursorShape shape, _GLFWwindow* window)
     _glfw.wl.cursorPreviousShape = shape;
 }
 
+#define x window->wl.allCursorPosX
+#define y window->wl.allCursorPosY
 static void pointerHandleMotion(void* data UNUSED,
                                 struct wl_pointer* pointer UNUSED,
                                 uint32_t time UNUSED,
@@ -181,46 +168,45 @@ static void pointerHandleMotion(void* data UNUSED,
 {
     _GLFWwindow* window = _glfw.wl.pointerFocus;
     GLFWCursorShape cursorShape = GLFW_ARROW_CURSOR;
-    double x, y;
 
     if (!window)
         return;
 
     if (window->cursorMode == GLFW_CURSOR_DISABLED)
         return;
-    x = wl_fixed_to_double(sx);
-    y = wl_fixed_to_double(sy);
+    window->wl.allCursorPosX = wl_fixed_to_double(sx);
+    window->wl.allCursorPosY = wl_fixed_to_double(sy);
 
     switch (window->wl.decorations.focus)
     {
-        case mainWindow:
+        case CENTRAL_WINDOW:
             window->wl.cursorPosX = x;
             window->wl.cursorPosY = y;
             _glfwInputCursorPos(window, x, y);
             _glfw.wl.cursorPreviousShape = GLFW_INVALID_CURSOR;
             return;
-        case topDecoration:
-            if (y < _GLFW_DECORATION_WIDTH)
+        case TOP_DECORATION:
+            if (y < window->wl.decorations.metrics.width)
                 cursorShape = GLFW_VRESIZE_CURSOR;
             else
                 cursorShape = GLFW_ARROW_CURSOR;
             break;
-        case leftDecoration:
-            if (y < _GLFW_DECORATION_WIDTH)
+        case LEFT_DECORATION:
+            if (y < window->wl.decorations.metrics.width)
                 cursorShape = GLFW_NW_RESIZE_CURSOR;
             else
                 cursorShape = GLFW_HRESIZE_CURSOR;
             break;
-        case rightDecoration:
-            if (y < _GLFW_DECORATION_WIDTH)
+        case RIGHT_DECORATION:
+            if (y < window->wl.decorations.metrics.width)
                 cursorShape = GLFW_NE_RESIZE_CURSOR;
             else
                 cursorShape = GLFW_HRESIZE_CURSOR;
             break;
-        case bottomDecoration:
-            if (x < _GLFW_DECORATION_WIDTH)
+        case BOTTOM_DECORATION:
+            if (x < window->wl.decorations.metrics.width)
                 cursorShape = GLFW_SW_RESIZE_CURSOR;
-            else if (x > window->wl.width + _GLFW_DECORATION_WIDTH)
+            else if (x > window->wl.width + window->wl.decorations.metrics.width)
                 cursorShape = GLFW_SE_RESIZE_CURSOR;
             else
                 cursorShape = GLFW_VRESIZE_CURSOR;
@@ -249,33 +235,46 @@ static void pointerHandleButton(void* data UNUSED,
     {
         switch (window->wl.decorations.focus)
         {
-            case mainWindow:
+            case CENTRAL_WINDOW:
                 break;
-            case topDecoration:
-                if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
+            case TOP_DECORATION:
+                if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
+                    monotonic_t last_click_at = window->wl.decorations.last_click_on_top_decoration_at;
+                    window->wl.decorations.last_click_on_top_decoration_at = monotonic();
+                    if (window->wl.decorations.last_click_on_top_decoration_at - last_click_at <= _glfwPlatformGetDoubleClickInterval(window)) {
+                        window->wl.decorations.last_click_on_top_decoration_at = 0;
+                        if (window->wl.toplevel_states & TOPLEVEL_STATE_MAXIMIZED)
+                            xdg_toplevel_unset_maximized(window->wl.xdg.toplevel);
+                        else
+                            xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
+                        return;
+                    }
+                }
+                if (y < window->wl.decorations.metrics.width)
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP;
                 else
                 {
                     if (window->wl.xdg.toplevel)
                         xdg_toplevel_move(window->wl.xdg.toplevel, _glfw.wl.seat, serial);
                 }
+
                 break;
-            case leftDecoration:
-                if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
+            case LEFT_DECORATION:
+                if (y < window->wl.decorations.metrics.width)
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT;
                 else
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_LEFT;
                 break;
-            case rightDecoration:
-                if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
+            case RIGHT_DECORATION:
+                if (y < window->wl.decorations.metrics.width)
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT;
                 else
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_RIGHT;
                 break;
-            case bottomDecoration:
-                if (window->wl.cursorPosX < _GLFW_DECORATION_WIDTH)
+            case BOTTOM_DECORATION:
+                if (x < window->wl.decorations.metrics.width)
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT;
-                else if (window->wl.cursorPosX > window->wl.width + _GLFW_DECORATION_WIDTH)
+                else if (x > window->wl.width + window->wl.decorations.metrics.width)
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT;
                 else
                     edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM;
@@ -291,18 +290,15 @@ static void pointerHandleButton(void* data UNUSED,
     }
     else if (button == BTN_RIGHT)
     {
-        if (window->wl.decorations.focus != mainWindow && window->wl.xdg.toplevel)
+        if (window->wl.decorations.focus != CENTRAL_WINDOW && window->wl.xdg.toplevel)
         {
-            xdg_toplevel_show_window_menu(window->wl.xdg.toplevel,
-                                          _glfw.wl.seat, serial,
-                                          (int32_t)window->wl.cursorPosX,
-                                          (int32_t)window->wl.cursorPosY);
+            xdg_toplevel_show_window_menu(window->wl.xdg.toplevel, _glfw.wl.seat, serial, (int32_t)x, (int32_t)y - window->wl.decorations.metrics.top);
             return;
         }
     }
 
     // Don’t pass the button to the user if it was related to a decoration.
-    if (window->wl.decorations.focus != mainWindow)
+    if (window->wl.decorations.focus != CENTRAL_WINDOW)
         return;
 
     _glfw.wl.serial = serial;
@@ -318,6 +314,8 @@ static void pointerHandleButton(void* data UNUSED,
                                 : GLFW_RELEASE,
                          _glfw.wl.xkb.states.modifiers);
 }
+#undef x
+#undef y
 
 static void pointerHandleAxis(void* data UNUSED,
                               struct wl_pointer* pointer UNUSED,
@@ -393,7 +391,7 @@ static void keyboardHandleEnter(void* data UNUSED,
     }
 
     _glfw.wl.serial = serial;
-    _glfw.wl.keyboardFocus = window;
+    _glfw.wl.keyboardFocusId = window->id;
     _glfwInputWindowFocus(window, true);
     uint32_t* key;
     if (keys && _glfw.wl.keyRepeatInfo.key) {
@@ -411,21 +409,23 @@ static void keyboardHandleLeave(void* data UNUSED,
                                 uint32_t serial,
                                 struct wl_surface* surface UNUSED)
 {
-    _GLFWwindow* window = _glfw.wl.keyboardFocus;
+    _GLFWwindow* window = _glfwWindowForId(_glfw.wl.keyboardFocusId);
 
     if (!window)
         return;
 
     _glfw.wl.serial = serial;
-    _glfw.wl.keyboardFocus = NULL;
+    _glfw.wl.keyboardFocusId = 0;
     _glfwInputWindowFocus(window, false);
     toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, 0);
 }
 
 static void
 dispatchPendingKeyRepeats(id_type timer_id UNUSED, void *data UNUSED) {
-    if (_glfw.wl.keyRepeatInfo.keyboardFocus != _glfw.wl.keyboardFocus || _glfw.wl.keyboardRepeatRate == 0) return;
-    glfw_xkb_handle_key_event(_glfw.wl.keyRepeatInfo.keyboardFocus, &_glfw.wl.xkb, _glfw.wl.keyRepeatInfo.key, GLFW_REPEAT);
+    if (_glfw.wl.keyRepeatInfo.keyboardFocusId != _glfw.wl.keyboardFocusId || _glfw.wl.keyboardRepeatRate == 0) return;
+    _GLFWwindow* window = _glfwWindowForId(_glfw.wl.keyboardFocusId);
+    if (!window) return;
+    glfw_xkb_handle_key_event(window, &_glfw.wl.xkb, _glfw.wl.keyRepeatInfo.key, GLFW_REPEAT);
     changeTimerInterval(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, (s_to_monotonic_t(1ll) / (monotonic_t)_glfw.wl.keyboardRepeatRate));
     toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, 1);
 }
@@ -438,26 +438,24 @@ static void keyboardHandleKey(void* data UNUSED,
                               uint32_t key,
                               uint32_t state)
 {
-    _GLFWwindow* window = _glfw.wl.keyboardFocus;
+    _GLFWwindow* window = _glfwWindowForId(_glfw.wl.keyboardFocusId);
     if (!window)
         return;
     int action = state == WL_KEYBOARD_KEY_STATE_PRESSED ? GLFW_PRESS : GLFW_RELEASE;
 
     _glfw.wl.serial = serial;
     glfw_xkb_handle_key_event(window, &_glfw.wl.xkb, key, action);
-    bool repeatable = false;
-    _glfw.wl.keyRepeatInfo.key = 0;
 
     if (action == GLFW_PRESS && _glfw.wl.keyboardRepeatRate > 0 && glfw_xkb_should_repeat(&_glfw.wl.xkb, key))
     {
         _glfw.wl.keyRepeatInfo.key = key;
-        repeatable = true;
-        _glfw.wl.keyRepeatInfo.keyboardFocus = window;
-    }
-    if (repeatable) {
+        _glfw.wl.keyRepeatInfo.keyboardFocusId = window->id;
         changeTimerInterval(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, _glfw.wl.keyboardRepeatDelay);
+        toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, 1);
+    } else if (action == GLFW_RELEASE && key == _glfw.wl.keyRepeatInfo.key) {
+        _glfw.wl.keyRepeatInfo.key = 0;
+        toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, 0);
     }
-    toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.keyRepeatInfo.keyRepeatTimer, repeatable ? 1 : 0);
 }
 
 static void keyboardHandleModifiers(void* data UNUSED,
@@ -584,6 +582,7 @@ static void registryHandleGlobal(void* data UNUSED,
             if (_glfw.wl.primarySelectionDeviceManager && !_glfw.wl.primarySelectionDevice) {
                 _glfwSetupWaylandPrimarySelectionDevice();
             }
+            _glfwWaylandInitTextInput();
         }
     }
     else if (strcmp(interface, "xdg_wm_base") == 0)
@@ -598,11 +597,6 @@ static void registryHandleGlobal(void* data UNUSED,
         wl_registry_bind(registry, name,
             &zxdg_decoration_manager_v1_interface, 1);
     }
-    else if (strcmp(interface, "wp_viewporter") == 0)
-    {
-        _glfw.wl.viewporter =
-            wl_registry_bind(registry, name, &wp_viewporter_interface, 1);
-    }
     else if (strcmp(interface, "zwp_relative_pointer_manager_v1") == 0)
     {
         _glfw.wl.relativePointerManager =
@@ -617,6 +611,11 @@ static void registryHandleGlobal(void* data UNUSED,
                              &zwp_pointer_constraints_v1_interface,
                              1);
     }
+    else if (strcmp(interface, GLFW_WAYLAND_TEXT_INPUT_INTERFACE_NAME) == 0)
+    {
+        _glfwWaylandBindTextInput(registry, name);
+        _glfwWaylandInitTextInput();
+    }
     else if (strcmp(interface, "zwp_idle_inhibit_manager_v1") == 0)
     {
         _glfw.wl.idleInhibitManager =
@@ -717,6 +716,9 @@ glfwWaylandCheckForServerSideDecorations(void) {
 
 int _glfwPlatformInit(void)
 {
+    int i;
+    _GLFWmonitor* monitor;
+
     _glfw.wl.cursor.handle = _glfw_dlopen("libwayland-cursor.so.0");
     if (!_glfw.wl.cursor.handle)
     {
@@ -754,6 +756,7 @@ int _glfwPlatformInit(void)
                         "Wayland: Failed to initialize event loop data");
     }
     glfw_dbus_init(&_glfw.wl.dbus, &_glfw.wl.eventLoopData);
+    glfw_initialize_desktop_settings();
     _glfw.wl.keyRepeatInfo.keyRepeatTimer = addTimer(&_glfw.wl.eventLoopData, "wayland-key-repeat", ms_to_monotonic_t(500ll), 0, true, dispatchPendingKeyRepeats, NULL, NULL);
     _glfw.wl.cursorAnimationTimer = addTimer(&_glfw.wl.eventLoopData, "wayland-cursor-animation", ms_to_monotonic_t(500ll), 0, true, animateCursorImage, NULL, NULL);
 
@@ -768,6 +771,17 @@ int _glfwPlatformInit(void)
     // Sync so we got all initial output events
     wl_display_roundtrip(_glfw.wl.display);
 
+    for (i = 0; i < _glfw.monitorCount; ++i)
+    {
+        monitor = _glfw.monitors[i];
+        if (monitor->widthMM <= 0 || monitor->heightMM <= 0)
+        {
+            // If Wayland does not provide a physical size, assume the default 96 DPI
+            monitor->widthMM  = (int) (monitor->modes[monitor->wl.currentMode].width * 25.4f / 96.f);
+            monitor->heightMM = (int) (monitor->modes[monitor->wl.currentMode].height * 25.4f / 96.f);
+        }
+    }
+
     if (!_glfw.wl.wmBase)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,
@@ -817,8 +831,6 @@ void _glfwPlatformTerminate(void)
         wl_compositor_destroy(_glfw.wl.compositor);
     if (_glfw.wl.shm)
         wl_shm_destroy(_glfw.wl.shm);
-    if (_glfw.wl.viewporter)
-        wp_viewporter_destroy(_glfw.wl.viewporter);
     if (_glfw.wl.decorationManager)
         zxdg_decoration_manager_v1_destroy(_glfw.wl.decorationManager);
     if (_glfw.wl.wmBase)
@@ -833,6 +845,7 @@ void _glfwPlatformTerminate(void)
         zwp_relative_pointer_manager_v1_destroy(_glfw.wl.relativePointerManager);
     if (_glfw.wl.pointerConstraints)
         zwp_pointer_constraints_v1_destroy(_glfw.wl.pointerConstraints);
+    _glfwWaylandDestroyTextInput();
     if (_glfw.wl.idleInhibitManager)
         zwp_idle_inhibit_manager_v1_destroy(_glfw.wl.idleInhibitManager);
     if (_glfw.wl.dataSourceForClipboard)

glfw/wl_platform.h

@@ -53,12 +53,12 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
 #include "wl_cursors.h"
 
 #include "wayland-xdg-shell-client-protocol.h"
-#include "wayland-viewporter-client-protocol.h"
 #include "wayland-xdg-decoration-unstable-v1-client-protocol.h"
 #include "wayland-relative-pointer-unstable-v1-client-protocol.h"
 #include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
 #include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
 #include "wayland-primary-selection-unstable-v1-client-protocol.h"
+#include "wl_text_input.h"
 
 #define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
 #define _glfw_dlclose(handle) dlclose(handle)
@@ -88,28 +88,45 @@ typedef void (* PFN_wl_egl_window_resize)(struct wl_egl_window*, int, int, int,
 #define wl_egl_window_destroy _glfw.wl.egl.window_destroy
 #define wl_egl_window_resize _glfw.wl.egl.window_resize
 
-#define _GLFW_DECORATION_WIDTH 4
-#define _GLFW_DECORATION_TOP 24
-#define _GLFW_DECORATION_VERTICAL (_GLFW_DECORATION_TOP + _GLFW_DECORATION_WIDTH)
-#define _GLFW_DECORATION_HORIZONTAL (2 * _GLFW_DECORATION_WIDTH)
-
 typedef enum _GLFWdecorationSideWayland
 {
-    mainWindow,
-    topDecoration,
-    leftDecoration,
-    rightDecoration,
-    bottomDecoration,
-
+    CENTRAL_WINDOW,
+    TOP_DECORATION,
+    LEFT_DECORATION,
+    RIGHT_DECORATION,
+    BOTTOM_DECORATION,
 } _GLFWdecorationSideWayland;
 
-typedef struct _GLFWdecorationWayland
-{
-    struct wl_surface*          surface;
-    struct wl_subsurface*       subsurface;
-    struct wp_viewport*         viewport;
+typedef struct _GLFWWaylandBufferPair {
+    struct wl_buffer *a, *b, *front, *back;
+    struct { uint8_t *a, *b, *front, *back; } data;
+    bool has_pending_update;
+    size_t size_in_bytes, width, height, stride;
+} _GLFWWaylandBufferPair;
+
+typedef struct _GLFWWaylandCSDEdge {
+    struct wl_surface *surface;
+    struct wl_subsurface *subsurface;
+    _GLFWWaylandBufferPair buffer;
+    int x, y;
+} _GLFWWaylandCSDEdge;
+
+typedef enum WaylandWindowState {
+
+    TOPLEVEL_STATE_NONE = 0,
+    TOPLEVEL_STATE_MAXIMIZED = 1,
+    TOPLEVEL_STATE_FULLSCREEN = 2,
+	TOPLEVEL_STATE_RESIZING = 4,
+	TOPLEVEL_STATE_ACTIVATED = 8,
+	TOPLEVEL_STATE_TILED_LEFT = 16,
+	TOPLEVEL_STATE_TILED_RIGHT = 32,
+	TOPLEVEL_STATE_TILED_TOP = 64,
+	TOPLEVEL_STATE_TILED_BOTTOM = 128,
+} WaylandWindowState;
+
+
+static const WaylandWindowState TOPLEVEL_STATE_DOCKED = TOPLEVEL_STATE_MAXIMIZED | TOPLEVEL_STATE_FULLSCREEN | TOPLEVEL_STATE_TILED_TOP | TOPLEVEL_STATE_TILED_LEFT | TOPLEVEL_STATE_TILED_RIGHT | TOPLEVEL_STATE_TILED_BOTTOM;
 
-} _GLFWdecorationWayland;
 
 // Wayland-specific per-window data
 //
@@ -117,7 +134,6 @@ typedef struct _GLFWwindowWayland
 {
     int                         width, height;
     bool                        visible;
-    bool                        maximized;
     bool                        hovered;
     bool                        transparent;
     struct wl_surface*          surface;
@@ -131,7 +147,7 @@ typedef struct _GLFWwindowWayland
     } xdg;
 
     _GLFWcursor*                currentCursor;
-    double                      cursorPosX, cursorPosY;
+    double                      cursorPosX, cursorPosY, allCursorPosX, allCursorPosY;
 
     char*                       title;
     char                        appId[256];
@@ -151,13 +167,37 @@ typedef struct _GLFWwindowWayland
 
     struct zwp_idle_inhibitor_v1*          idleInhibitor;
 
-    bool                        fullscreened;
-
     struct {
-        bool                               serverSide;
-        struct wl_buffer*                  buffer;
-        _GLFWdecorationWayland             top, left, right, bottom;
-        int                                focus;
+        bool serverSide;
+        _GLFWdecorationSideWayland focus;
+        _GLFWWaylandCSDEdge top, left, right, bottom;
+
+        struct {
+            uint8_t *data;
+            size_t size;
+        } mapping;
+
+        struct {
+            int width, height, scale;
+            bool focused;
+        } for_window_state;
+
+        struct {
+            unsigned int width, top, horizontal, vertical, visible_titlebar_height;
+        } metrics;
+
+        struct {
+            int32_t x, y, width, height;
+        } geometry;
+
+        struct {
+            uint32_t *data;
+            size_t for_decoration_size, stride, segments, corner_size;
+        } shadow_tile;
+        monotonic_t last_click_on_top_decoration_at;
+
+        uint32_t titlebar_color;
+        bool use_custom_titlebar_color;
     } decorations;
 
     struct {
@@ -166,6 +206,12 @@ typedef struct _GLFWwindowWayland
         struct wl_callback *current_wl_callback;
     } frameCallbackData;
 
+    struct {
+        int32_t width, height;
+    } user_requested_content_size;
+
+    uint32_t toplevel_states;
+    bool maximize_on_first_show;
 
 } _GLFWwindowWayland;
 
@@ -204,14 +250,13 @@ typedef struct _GLFWlibraryWayland
     struct wl_seat*             seat;
     struct wl_pointer*          pointer;
     struct wl_keyboard*         keyboard;
+    struct wl_data_device_manager*          dataDeviceManager;
+    struct wl_data_device*      dataDevice;
     struct xdg_wm_base*         wmBase;
     struct zxdg_decoration_manager_v1*      decorationManager;
-    struct wp_viewporter*       viewporter;
     struct zwp_relative_pointer_manager_v1* relativePointerManager;
     struct zwp_pointer_constraints_v1*      pointerConstraints;
     struct zwp_idle_inhibit_manager_v1*     idleInhibitManager;
-    struct wl_data_device_manager*          dataDeviceManager;
-    struct wl_data_device*                  dataDevice;
     struct wl_data_source*                  dataSourceForClipboard;
     struct zwp_primary_selection_device_manager_v1* primarySelectionDeviceManager;
     struct zwp_primary_selection_device_v1*    primarySelectionDevice;
@@ -226,17 +271,18 @@ typedef struct _GLFWlibraryWayland
 
     int32_t                     keyboardRepeatRate;
     monotonic_t                 keyboardRepeatDelay;
+
     struct {
         uint32_t                key;
         id_type                 keyRepeatTimer;
-        _GLFWwindow*            keyboardFocus;
+        GLFWid                  keyboardFocusId;
     } keyRepeatInfo;
     id_type                     cursorAnimationTimer;
     _GLFWXKBData                xkb;
     _GLFWDBUSData               dbus;
 
     _GLFWwindow*                pointerFocus;
-    _GLFWwindow*                keyboardFocus;
+    GLFWid                      keyboardFocusId;
 
     struct {
         void*                   handle;
@@ -261,7 +307,6 @@ typedef struct _GLFWlibraryWayland
     size_t dataOffersCounter;
     _GLFWWaylandDataOffer dataOffers[8];
     char* primarySelectionString;
-    GLFWWLCursorThemes cursor_themes;
 } _GLFWlibraryWayland;
 
 // Wayland-specific per-monitor data
@@ -275,7 +320,8 @@ typedef struct _GLFWmonitorWayland
     int                         x;
     int                         y;
     int                         scale;
- } _GLFWmonitorWayland;
+
+} _GLFWmonitorWayland;
 
 // Wayland-specific per-cursor data
 //

glfw/wl_text_input.c

@@ -0,0 +1,154 @@
+/*
+ * wl_text_input.c
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#include "wl_text_input.h"
+#include "internal.h"
+#include "wayland-text-input-unstable-v3-client-protocol.h"
+#include <stdlib.h>
+#define debug(...) if (_glfw.hints.init.debugKeyboard) printf(__VA_ARGS__);
+
+static struct zwp_text_input_v3*                  text_input;
+static struct zwp_text_input_manager_v3*          text_input_manager;
+static char *pending_pre_edit = NULL;
+static char *pending_commit   = NULL;
+uint32_t commit_serial = 0;
+
+static void commit(void) {
+    if (text_input) {
+        zwp_text_input_v3_commit (text_input);
+        commit_serial++;
+    }
+}
+
+static void
+text_input_enter(void *data UNUSED, struct zwp_text_input_v3 *text_input UNUSED, struct wl_surface *surface UNUSED) {
+    debug("text-input: enter event\n");
+    if (text_input) {
+        zwp_text_input_v3_enable(text_input);
+        zwp_text_input_v3_set_content_type(text_input, ZWP_TEXT_INPUT_V3_CONTENT_HINT_NONE, ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_TERMINAL);
+        commit();
+    }
+}
+
+static void
+text_input_leave(void *data UNUSED, struct zwp_text_input_v3 *text_input UNUSED, struct wl_surface *surface UNUSED) {
+    debug("text-input: leave event\n");
+    if (text_input) {
+        zwp_text_input_v3_disable(text_input);
+        commit();
+    }
+}
+
+static inline void
+send_text(const char *text, GLFWIMEState ime_state) {
+    _GLFWwindow *w = _glfwFocusedWindow();
+    if (w && w->callbacks.keyboard) {
+        GLFWkeyevent fake_ev = {.action = GLFW_PRESS};
+        fake_ev.text = text;
+        fake_ev.ime_state = ime_state;
+        w->callbacks.keyboard((GLFWwindow*) w, &fake_ev);
+    }
+}
+
+static void
+text_input_preedit_string(
+        void                     *data UNUSED,
+        struct zwp_text_input_v3 *text_input UNUSED,
+        const char               *text,
+        int32_t                  cursor_begin,
+        int32_t                  cursor_end
+) {
+    debug("text-input: preedit_string event: text: %s cursor_begin: %d cursor_end: %d\n", text, cursor_begin, cursor_end);
+    free(pending_pre_edit);
+    pending_pre_edit = text ? _glfw_strdup(text) : NULL;
+}
+
+static void
+text_input_commit_string(void *data UNUSED, struct zwp_text_input_v3 *text_input UNUSED, const char *text) {
+    debug("text-input: commit_string event: text: %s\n", text);
+    free(pending_commit);
+    pending_commit = text ? _glfw_strdup(text) : NULL;
+}
+
+static void
+text_input_delete_surrounding_text(
+        void *data UNUSED,
+        struct zwp_text_input_v3 *zwp_text_input_v3 UNUSED,
+        uint32_t before_length,
+        uint32_t after_length) {
+    debug("text-input: delete_surrounding_text event: before_length: %u after_length: %u\n", before_length, after_length);
+}
+
+static void
+text_input_done(void *data UNUSED, struct zwp_text_input_v3 *zwp_text_input_v3 UNUSED, uint32_t serial UNUSED) {
+    debug("text-input: done event: serial: %u current_commit_serial: %u\n", serial, commit_serial);
+    if (serial != commit_serial) {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: text_input_done serial mismatch, expected=%u got=%u\n", commit_serial, serial);
+        return;
+    }
+    if (pending_pre_edit) {
+        send_text(pending_pre_edit, GLFW_IME_PREEDIT_CHANGED);
+        free(pending_pre_edit); pending_pre_edit = NULL;
+    }
+    if (pending_commit) {
+        send_text(pending_commit, GLFW_IME_COMMIT_TEXT);
+        free(pending_commit); pending_commit = NULL;
+    }
+}
+
+void
+_glfwWaylandBindTextInput(struct wl_registry* registry, uint32_t name) {
+    if (!text_input_manager) text_input_manager = wl_registry_bind(registry, name, &zwp_text_input_manager_v3_interface, 1);
+}
+
+void
+_glfwWaylandInitTextInput(void) {
+    static const struct zwp_text_input_v3_listener text_input_listener = {
+        .enter = text_input_enter,
+        .leave = text_input_leave,
+        .preedit_string = text_input_preedit_string,
+        .commit_string = text_input_commit_string,
+        .delete_surrounding_text = text_input_delete_surrounding_text,
+        .done = text_input_done,
+    };
+    if (!text_input) {
+        if (text_input_manager && _glfw.wl.seat) {
+            text_input = zwp_text_input_manager_v3_get_text_input(
+                    text_input_manager, _glfw.wl.seat);
+            if (text_input) zwp_text_input_v3_add_listener(text_input, &text_input_listener, NULL);
+        }
+    }
+}
+
+void
+_glfwWaylandDestroyTextInput(void) {
+    if (text_input) zwp_text_input_v3_destroy(text_input);
+    if (text_input_manager) zwp_text_input_manager_v3_destroy(text_input_manager);
+    text_input = NULL; text_input_manager = NULL;
+    free(pending_pre_edit); pending_pre_edit = NULL;
+    free(pending_commit); pending_commit = NULL;
+}
+
+void
+_glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
+    if (!text_input) return;
+    switch(ev->type) {
+        case GLFW_IME_UPDATE_FOCUS:
+            debug("\ntext-input: updating IME focus state, focused: %d\n", ev->focused);
+            if (ev->focused) zwp_text_input_v3_enable(text_input); else zwp_text_input_v3_disable(text_input);
+            commit();
+            break;
+        case GLFW_IME_UPDATE_CURSOR_POSITION: {
+            const int scale = w->wl.scale;
+            const int left = ev->cursor.left / scale, top = ev->cursor.top / scale, width = ev->cursor.width / scale, height = ev->cursor.height / scale;
+            debug("\ntext-input: updating cursor position: left=%d top=%d width=%d height=%d\n", left, top, width, height);
+            zwp_text_input_v3_set_cursor_rectangle(text_input, left, top, width, height);
+            commit();
+        }
+            break;
+    }
+}

glfw/wl_text_input.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2021 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+#pragma once
+#include <wayland-client.h>
+
+#define GLFW_WAYLAND_TEXT_INPUT_INTERFACE_NAME "zwp_text_input_manager_v3"
+
+void _glfwWaylandBindTextInput(struct wl_registry* registry, uint32_t name);
+void _glfwWaylandInitTextInput(void);
+void _glfwWaylandDestroyTextInput(void);

glfw/wl_window.c

@@ -32,6 +32,7 @@
 #include "backend_utils.h"
 #include "memfd.h"
 #include "linux_notify.h"
+#include "wl_client_side_decorations.h"
 #include "../kitty/monotonic.h"
 
 #include <stdio.h>
@@ -41,10 +42,65 @@
 #include <fcntl.h>
 #include <sys/mman.h>
 
+#define debug(...) if (_glfw.hints.init.debugRendering) fprintf(stderr, __VA_ARGS__);
+
+static struct wl_buffer* createShmBuffer(const GLFWimage* image, bool is_opaque, bool init_data)
+{
+    struct wl_shm_pool* pool;
+    struct wl_buffer* buffer;
+    int stride = image->width * 4;
+    int length = image->width * image->height * 4;
+    void* data;
+    int fd, i;
+
+    fd = createAnonymousFile(length);
+    if (fd < 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Creating a buffer file for %d B failed: %s",
+                        length, strerror(errno));
+        return NULL;
+    }
+
+    data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+    if (data == MAP_FAILED)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: mmap failed: %s", strerror(errno));
+        close(fd);
+        return NULL;
+    }
+
+    pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
+
+    close(fd);
+    if (init_data) {
+        unsigned char* source = (unsigned char*) image->pixels;
+        unsigned char* target = data;
+        for (i = 0;  i < image->width * image->height;  i++, source += 4)
+        {
+            unsigned int alpha = source[3];
+
+            *target++ = (unsigned char) ((source[2] * alpha) / 255);
+            *target++ = (unsigned char) ((source[1] * alpha) / 255);
+            *target++ = (unsigned char) ((source[0] * alpha) / 255);
+            *target++ = (unsigned char) alpha;
+        }
+    }
+
+    buffer =
+        wl_shm_pool_create_buffer(pool, 0,
+                                  image->width,
+                                  image->height,
+                                  stride, is_opaque ? WL_SHM_FORMAT_XRGB8888 : WL_SHM_FORMAT_ARGB8888);
+    munmap(data, length);
+    wl_shm_pool_destroy(pool);
+
+    return buffer;
+}
 
 static void
-setCursorImage(_GLFWwindow* window)
-{
+setCursorImage(_GLFWwindow* window, bool on_theme_change) {
     _GLFWcursorWayland defaultCursor = {.shape = GLFW_ARROW_CURSOR};
     _GLFWcursorWayland* cursorWayland = window->cursor ? &window->cursor->wl : &defaultCursor;
     struct wl_cursor_image* image = NULL;
@@ -55,9 +111,8 @@ setCursorImage(_GLFWwindow* window)
     if (cursorWayland->scale < 0) {
         buffer = cursorWayland->buffer;
         toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, 0);
-    } else
-    {
-        if (cursorWayland->scale != scale) {
+    } else {
+        if (on_theme_change || cursorWayland->scale != scale) {
             struct wl_cursor *newCursor = NULL;
             struct wl_cursor_theme *theme = glfw_wlc_theme_for_scale(scale);
             if (theme) newCursor = _glfwLoadCursor(cursorWayland->shape, theme);
@@ -132,7 +187,7 @@ static bool checkScaleChange(_GLFWwindow* window)
     {
         window->wl.scale = scale;
         wl_surface_set_buffer_scale(window->wl.surface, scale);
-        setCursorImage(window);
+        setCursorImage(window, false);
         return true;
     }
     if (window->wl.monitorsCount > 0 && !window->wl.initial_scale_notified) {
@@ -158,42 +213,15 @@ static void setOpaqueRegion(_GLFWwindow* window)
 }
 
 
-static void resizeFramebuffer(_GLFWwindow* window)
-{
+static void
+resizeFramebuffer(_GLFWwindow* window) {
     int scale = window->wl.scale;
     int scaledWidth = window->wl.width * scale;
     int scaledHeight = window->wl.height * scale;
+    debug("Resizing framebuffer to: %dx%d at scale: %d\n", window->wl.width, window->wl.height, scale);
     wl_egl_window_resize(window->wl.native, scaledWidth, scaledHeight, 0, 0);
-    if (!window->wl.transparent)
-        setOpaqueRegion(window);
+    if (!window->wl.transparent) setOpaqueRegion(window);
     _glfwInputFramebufferSize(window, scaledWidth, scaledHeight);
-
-    if (!window->wl.decorations.top.surface)
-        return;
-
-    // Top decoration.
-    wp_viewport_set_destination(window->wl.decorations.top.viewport,
-                                window->wl.width, _GLFW_DECORATION_TOP);
-    wl_surface_commit(window->wl.decorations.top.surface);
-
-    // Left decoration.
-    wp_viewport_set_destination(window->wl.decorations.left.viewport,
-                                _GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
-    wl_surface_commit(window->wl.decorations.left.surface);
-
-    // Right decoration.
-    wl_subsurface_set_position(window->wl.decorations.right.subsurface,
-                               window->wl.width, -_GLFW_DECORATION_TOP);
-    wp_viewport_set_destination(window->wl.decorations.right.viewport,
-                                _GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
-    wl_surface_commit(window->wl.decorations.right.surface);
-
-    // Bottom decoration.
-    wl_subsurface_set_position(window->wl.decorations.bottom.subsurface,
-                               -_GLFW_DECORATION_WIDTH, window->wl.height);
-    wp_viewport_set_destination(window->wl.decorations.bottom.viewport,
-                                window->wl.width + _GLFW_DECORATION_HORIZONTAL, _GLFW_DECORATION_WIDTH);
-    wl_surface_commit(window->wl.decorations.bottom.surface);
 }
 
 
@@ -206,15 +234,15 @@ clipboard_mime(void) {
     return buf;
 }
 
-static void dispatchChangesAfterConfigure(_GLFWwindow *window, int32_t width, int32_t height) {
-    if (width <= 0) width = window->wl.width;
-    if (height <= 0) height = window->wl.height;
+static void
+dispatchChangesAfterConfigure(_GLFWwindow *window, int32_t width, int32_t height) {
     bool size_changed = width != window->wl.width || height != window->wl.height;
     bool scale_changed = checkScaleChange(window);
 
     if (size_changed) {
         _glfwInputWindowSize(window, width, height);
-        _glfwPlatformSetWindowSize(window, width, height);
+        window->wl.width = width; window->wl.height = height;
+        resizeFramebuffer(window);
     }
 
     if (scale_changed) {
@@ -227,221 +255,23 @@ static void dispatchChangesAfterConfigure(_GLFWwindow *window, int32_t width, in
 }
 
 
-/*
- * Create a new, unique, anonymous file of the given size, and
- * return the file descriptor for it. The file descriptor is set
- * CLOEXEC. The file is immediately suitable for mmap()'ing
- * the given size at offset zero.
- *
- * The file should not have a permanent backing store like a disk,
- * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
- *
- * The file name is deleted from the file system.
- *
- * The file is suitable for buffer sharing between processes by
- * transmitting the file descriptor over Unix sockets using the
- * SCM_RIGHTS methods.
- *
- * posix_fallocate() is used to guarantee that disk space is available
- * for the file at the given size. If disk space is insufficient, errno
- * is set to ENOSPC. If posix_fallocate() is not supported, program may
- * receive SIGBUS on accessing mmap()'ed file contents instead.
- */
-static int
-createAnonymousFile(off_t size)
-{
-    int ret, fd = -1, shm_anon = 0;
-#ifdef HAS_MEMFD_CREATE
-    fd = memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
-    if (fd < 0) return -1;
-    // We can add this seal before calling posix_fallocate(), as the file
-    // is currently zero-sized anyway.
-    //
-    // There is also no need to check for the return value, we couldn’t do
-    // anything with it anyway.
-    fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
-#elif defined(SHM_ANON)
-    fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
-    if (fd < 0) return -1;
-    shm_anon = 1;
-#else
-    static const char template[] = "/glfw-shared-XXXXXX";
-    const char* path;
-    char* name;
-
-    path = getenv("XDG_RUNTIME_DIR");
-    if (!path)
-    {
-        errno = ENOENT;
-        return -1;
-    }
-
-    name = calloc(strlen(path) + sizeof(template), 1);
-    strcpy(name, path);
-    strcat(name, template);
-
-    fd = createTmpfileCloexec(name);
-
-    free(name);
-
-    if (fd < 0)
-        return -1;
-#endif
-    // posix_fallocate does not work on SHM descriptors
-    ret = shm_anon ? ftruncate(fd, size) : posix_fallocate(fd, 0, size);
-    if (ret != 0)
-    {
-        close(fd);
-        errno = ret;
-        return -1;
-    }
-    return fd;
-}
-
-static struct wl_buffer* createShmBuffer(const GLFWimage* image)
-{
-    struct wl_shm_pool* pool;
-    struct wl_buffer* buffer;
-    int stride = image->width * 4;
-    int length = image->width * image->height * 4;
-    void* data;
-    int fd, i;
-
-    fd = createAnonymousFile(length);
-    if (fd < 0)
-    {
-        _glfwInputError(GLFW_PLATFORM_ERROR,
-                        "Wayland: Creating a buffer file for %d B failed: %s",
-                        length, strerror(errno));
-        return NULL;
-    }
-
-    data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-    if (data == MAP_FAILED)
-    {
-        _glfwInputError(GLFW_PLATFORM_ERROR,
-                        "Wayland: mmap failed: %s", strerror(errno));
-        close(fd);
-        return NULL;
-    }
-
-    pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
-
-    close(fd);
-    unsigned char* source = (unsigned char*) image->pixels;
-    unsigned char* target = data;
-    for (i = 0;  i < image->width * image->height;  i++, source += 4)
-    {
-        unsigned int alpha = source[3];
-
-        *target++ = (unsigned char) ((source[2] * alpha) / 255);
-        *target++ = (unsigned char) ((source[1] * alpha) / 255);
-        *target++ = (unsigned char) ((source[0] * alpha) / 255);
-        *target++ = (unsigned char) alpha;
-    }
-
-    buffer =
-        wl_shm_pool_create_buffer(pool, 0,
-                                  image->width,
-                                  image->height,
-                                  stride, WL_SHM_FORMAT_ARGB8888);
-    munmap(data, length);
-    wl_shm_pool_destroy(pool);
-
-    return buffer;
-}
-
-static void createDecoration(_GLFWdecorationWayland* decoration,
-                             struct wl_surface* parent,
-                             struct wl_buffer* buffer, bool opaque,
-                             int x, int y,
-                             int width, int height)
-{
-    struct wl_region* region;
-
-    decoration->surface = wl_compositor_create_surface(_glfw.wl.compositor);
-    decoration->subsurface =
-        wl_subcompositor_get_subsurface(_glfw.wl.subcompositor,
-                                        decoration->surface, parent);
-    wl_subsurface_set_position(decoration->subsurface, x, y);
-    decoration->viewport = wp_viewporter_get_viewport(_glfw.wl.viewporter,
-                                                      decoration->surface);
-    wp_viewport_set_destination(decoration->viewport, width, height);
-    wl_surface_attach(decoration->surface, buffer, 0, 0);
-
-    if (opaque)
-    {
-        region = wl_compositor_create_region(_glfw.wl.compositor);
-        wl_region_add(region, 0, 0, width, height);
-        wl_surface_set_opaque_region(decoration->surface, region);
-        wl_surface_commit(decoration->surface);
-        wl_region_destroy(region);
-    }
-    else
-        wl_surface_commit(decoration->surface);
-}
-
-static void createDecorations(_GLFWwindow* window)
-{
-    unsigned char data[] = { 224, 224, 224, 255 };
-    const GLFWimage image = { 1, 1, data };
-    bool opaque = (data[3] == 255);
-
-    if (!_glfw.wl.viewporter || !window->decorated || window->wl.decorations.serverSide)
-        return;
-
-    if (!window->wl.decorations.buffer)
-        window->wl.decorations.buffer = createShmBuffer(&image);
-    if (!window->wl.decorations.buffer)
-        return;
-
-    createDecoration(&window->wl.decorations.top, window->wl.surface,
-                     window->wl.decorations.buffer, opaque,
-                     0, -_GLFW_DECORATION_TOP,
-                     window->wl.width, _GLFW_DECORATION_TOP);
-    createDecoration(&window->wl.decorations.left, window->wl.surface,
-                     window->wl.decorations.buffer, opaque,
-                     -_GLFW_DECORATION_WIDTH, -_GLFW_DECORATION_TOP,
-                     _GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
-    createDecoration(&window->wl.decorations.right, window->wl.surface,
-                     window->wl.decorations.buffer, opaque,
-                     window->wl.width, -_GLFW_DECORATION_TOP,
-                     _GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
-    createDecoration(&window->wl.decorations.bottom, window->wl.surface,
-                     window->wl.decorations.buffer, opaque,
-                     -_GLFW_DECORATION_WIDTH, window->wl.height,
-                     window->wl.width + _GLFW_DECORATION_HORIZONTAL, _GLFW_DECORATION_WIDTH);
-}
-
-static void destroyDecoration(_GLFWdecorationWayland* decoration)
-{
-    if (decoration->surface)
-        wl_surface_destroy(decoration->surface);
-    if (decoration->subsurface)
-        wl_subsurface_destroy(decoration->subsurface);
-    if (decoration->viewport)
-        wp_viewport_destroy(decoration->viewport);
-    decoration->surface = NULL;
-    decoration->subsurface = NULL;
-    decoration->viewport = NULL;
-}
-
-static void destroyDecorations(_GLFWwindow* window)
-{
-    destroyDecoration(&window->wl.decorations.top);
-    destroyDecoration(&window->wl.decorations.left);
-    destroyDecoration(&window->wl.decorations.right);
-    destroyDecoration(&window->wl.decorations.bottom);
-}
-
-static void xdgDecorationHandleConfigure(void* data,
+static void
+xdgDecorationHandleConfigure(void* data,
                                          struct zxdg_toplevel_decoration_v1* decoration UNUSED,
                                          uint32_t mode)
 {
     _GLFWwindow* window = data;
-    window->wl.decorations.serverSide = (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
-    if (!window->wl.decorations.serverSide)
-        createDecorations(window);
+
+    bool has_server_side_decorations = (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
+    debug("XDG decoration configure event received: Has server side decorations: %d\n", has_server_side_decorations);
+    if (!has_server_side_decorations && window->wl.decorations.serverSide) {
+        // this can happen for example on sway where it has a "border toggle" function
+        // that turns on/off the server side decorations. In such a case, we dont turn
+        // on client side decorations, as that causes things to break.
+        return;
+    }
+    window->wl.decorations.serverSide = has_server_side_decorations;
+    ensure_csd_resources(window);
 }
 
 static const struct zxdg_toplevel_decoration_v1_listener xdgDecorationListener = {
@@ -468,6 +298,7 @@ static void surfaceHandleEnter(void *data,
     if (checkScaleChange(window)) {
         resizeFramebuffer(window);
         _glfwInputWindowContentScale(window, window->wl.scale, window->wl.scale);
+        ensure_csd_resources(window);
     }
 }
 
@@ -492,6 +323,7 @@ static void surfaceHandleLeave(void *data,
     if (checkScaleChange(window)) {
         resizeFramebuffer(window);
         _glfwInputWindowContentScale(window, window->wl.scale, window->wl.scale);
+        ensure_csd_resources(window);
     }
 }
 
@@ -539,6 +371,8 @@ static bool createSurface(_GLFWwindow* window,
 
     window->wl.width = wndconfig->width;
     window->wl.height = wndconfig->height;
+    window->wl.user_requested_content_size.width = wndconfig->width;
+    window->wl.user_requested_content_size.height = wndconfig->height;
     window->wl.scale = 1;
 
     if (!window->wl.transparent)
@@ -547,8 +381,7 @@ static bool createSurface(_GLFWwindow* window,
     return true;
 }
 
-static void
-setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor, bool on)
+static void setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor, bool on)
 {
     if (window->wl.xdg.toplevel)
     {
@@ -556,12 +389,10 @@ setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor, bool on)
             xdg_toplevel_set_fullscreen(
                 window->wl.xdg.toplevel,
                 monitor ? monitor->wl.output : NULL);
-            if (!window->wl.decorations.serverSide)
-                destroyDecorations(window);
+            if (!window->wl.decorations.serverSide) free_csd_surfaces(window);
         } else {
             xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
-            if (!_glfw.wl.decorationManager)
-                createDecorations(window);
+            ensure_csd_resources(window);
         }
     }
     setIdleInhibitor(window, on);
@@ -569,12 +400,21 @@ setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor, bool on)
 
 bool
 _glfwPlatformToggleFullscreen(_GLFWwindow *window, unsigned int flags UNUSED) {
-    bool already_fullscreen = window->wl.fullscreened;
+    bool already_fullscreen = window->wl.toplevel_states & TOPLEVEL_STATE_FULLSCREEN;
     setFullscreen(window, NULL, !already_fullscreen);
     return !already_fullscreen;
 }
 
-static void xdgToplevelHandleConfigure(void* data,
+static void
+inform_compositor_of_window_geometry(_GLFWwindow *window, const char *event) {
+#define geometry window->wl.decorations.geometry
+    debug("Setting window geometry in %s event: x=%d y=%d %dx%d\n", event, geometry.x, geometry.y, geometry.width, geometry.height);
+    xdg_surface_set_window_geometry(window->wl.xdg.surface, geometry.x, geometry.y, geometry.width, geometry.height);
+#undef geometry
+}
+
+static void
+xdgToplevelHandleConfigure(void* data,
                                        struct xdg_toplevel* toplevel UNUSED,
                                        int32_t width,
                                        int32_t height,
@@ -583,32 +423,33 @@ static void xdgToplevelHandleConfigure(void* data,
     _GLFWwindow* window = data;
     float aspectRatio;
     float targetRatio;
-    uint32_t* state;
-    bool maximized = false;
-    bool fullscreen = false;
-    bool activated = false;
+    enum xdg_toplevel_state* state;
+    uint32_t new_states = 0;
+    debug("top-level configure event: size: %dx%d states: ", width, height);
 
-    wl_array_for_each(state, states)
-    {
-        switch (*state)
-        {
-            case XDG_TOPLEVEL_STATE_MAXIMIZED:
-                maximized = true;
-                break;
-            case XDG_TOPLEVEL_STATE_FULLSCREEN:
-                fullscreen = true;
-                break;
-            case XDG_TOPLEVEL_STATE_RESIZING:
-                break;
-            case XDG_TOPLEVEL_STATE_ACTIVATED:
-                activated = true;
-                break;
+    wl_array_for_each(state, states) {
+        switch (*state) {
+#define C(x) case XDG_##x: new_states |= x; debug("%s ", #x); break
+            C(TOPLEVEL_STATE_RESIZING);
+            C(TOPLEVEL_STATE_MAXIMIZED);
+            C(TOPLEVEL_STATE_FULLSCREEN);
+            C(TOPLEVEL_STATE_ACTIVATED);
+            C(TOPLEVEL_STATE_TILED_LEFT);
+            C(TOPLEVEL_STATE_TILED_RIGHT);
+            C(TOPLEVEL_STATE_TILED_TOP);
+            C(TOPLEVEL_STATE_TILED_BOTTOM);
+#undef C
         }
     }
-
+    debug("\n");
+    if (new_states & TOPLEVEL_STATE_RESIZING) {
+        if (width) window->wl.user_requested_content_size.width = width;
+        if (height) window->wl.user_requested_content_size.height = height;
+        if (!(window->wl.toplevel_states & TOPLEVEL_STATE_RESIZING)) _glfwInputLiveResize(window, true);
+    }
     if (width != 0 && height != 0)
     {
-        if (!maximized && !fullscreen)
+        if (!(new_states & TOPLEVEL_STATE_DOCKED))
         {
             if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
             {
@@ -621,15 +462,16 @@ static void xdgToplevelHandleConfigure(void* data,
             }
         }
     }
-    window->wl.fullscreened = fullscreen;
-    if (!fullscreen) {
-        if (window->decorated && !window->wl.decorations.serverSide && window->wl.decorations.buffer) {
-            width -= _GLFW_DECORATION_HORIZONTAL;
-            height -= _GLFW_DECORATION_VERTICAL;
-        }
-    }
+    bool live_resize_done = !(new_states & TOPLEVEL_STATE_RESIZING) && (window->wl.toplevel_states & TOPLEVEL_STATE_RESIZING);
+    window->wl.toplevel_states = new_states;
+    set_csd_window_geometry(window, &width, &height);
     dispatchChangesAfterConfigure(window, width, height);
-    _glfwInputWindowFocus(window, activated);
+    debug("final window content size: %dx%d\n", window->wl.width, window->wl.height);
+    _glfwInputWindowFocus(window, window->wl.toplevel_states & TOPLEVEL_STATE_ACTIVATED);
+    ensure_csd_resources(window);
+    wl_surface_commit(window->wl.surface);
+    inform_compositor_of_window_geometry(window, "configure");
+    if (live_resize_done) _glfwInputLiveResize(window, false);
 }
 
 static void xdgToplevelHandleClose(void* data,
@@ -655,10 +497,12 @@ static const struct xdg_surface_listener xdgSurfaceListener = {
     xdgSurfaceHandleConfigure
 };
 
-static void setXdgDecorations(_GLFWwindow* window)
+static void
+setXdgDecorations(_GLFWwindow* window)
 {
     if (_glfw.wl.decorationManager)
     {
+        window->wl.decorations.serverSide = true;
         window->wl.xdg.decoration =
             zxdg_decoration_manager_v1_get_toplevel_decoration(
                 _glfw.wl.decorationManager, window->wl.xdg.toplevel);
@@ -672,11 +516,12 @@ static void setXdgDecorations(_GLFWwindow* window)
     else
     {
         window->wl.decorations.serverSide = false;
-        createDecorations(window);
+        ensure_csd_resources(window);
     }
 }
 
-static bool createXdgSurface(_GLFWwindow* window)
+static bool
+createXdgSurface(_GLFWwindow* window)
 {
     window->wl.xdg.surface = xdg_wm_base_get_xdg_surface(_glfw.wl.wmBase,
                                                          window->wl.surface);
@@ -719,8 +564,9 @@ static bool createXdgSurface(_GLFWwindow* window)
                                     window->monitor->wl.output);
         setIdleInhibitor(window, true);
     }
-    else if (window->wl.maximized)
+    else if (window->wl.maximize_on_first_show)
     {
+        window->wl.maximize_on_first_show = false;
         xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
         setIdleInhibitor(window, false);
         setXdgDecorations(window);
@@ -739,16 +585,15 @@ static bool createXdgSurface(_GLFWwindow* window)
     return true;
 }
 
-static void
-incrementCursorImage(_GLFWwindow* window)
+static void incrementCursorImage(_GLFWwindow* window)
 {
-    if (window && window->wl.decorations.focus == mainWindow && window->cursorMode != GLFW_CURSOR_HIDDEN) {
+    if (window && window->wl.decorations.focus == CENTRAL_WINDOW && window->cursorMode != GLFW_CURSOR_HIDDEN) {
         _GLFWcursor* cursor = window->wl.currentCursor;
         if (cursor && cursor->wl.cursor)
         {
             cursor->wl.currentImage += 1;
             cursor->wl.currentImage %= cursor->wl.cursor->image_count;
-            setCursorImage(window);
+            setCursorImage(window, false);
             toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, cursor->wl.cursor->image_count > 1);
             return;
         }
@@ -788,8 +633,7 @@ wayland_read_events(int poll_result, int events, void *data UNUSED) {
     else wl_display_cancel_read(_glfw.wl.display);
 }
 
-static void
-handleEvents(monotonic_t timeout)
+static void handleEvents(monotonic_t timeout)
 {
     struct wl_display* display = _glfw.wl.display;
     errno = 0;
@@ -886,6 +730,7 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
                               const _GLFWctxconfig* ctxconfig,
                               const _GLFWfbconfig* fbconfig)
 {
+    initialize_csd_metrics(window);
     window->wl.transparent = fbconfig->transparent;
     strncpy(window->wl.appId, wndconfig->wl.appId, sizeof(window->wl.appId));
 
@@ -913,6 +758,8 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
 
     if (wndconfig->title)
         window->wl.title = _glfw_strdup(wndconfig->title);
+    if (wndconfig->maximized)
+        window->wl.maximize_on_first_show = true;
 
     if (wndconfig->visible)
     {
@@ -945,11 +792,14 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
         _glfw.wl.pointerFocus = NULL;
         _glfwInputCursorEnter(window, false);
     }
-    if (window == _glfw.wl.keyboardFocus)
+    if (window->id == _glfw.wl.keyboardFocusId)
     {
-        _glfw.wl.keyboardFocus = NULL;
+        _glfw.wl.keyboardFocusId = 0;
         _glfwInputWindowFocus(window, false);
     }
+    if (window->id == _glfw.wl.keyRepeatInfo.keyboardFocusId) {
+        _glfw.wl.keyRepeatInfo.keyboardFocusId = 0;
+    }
 
     if (window->wl.idleInhibitor)
         zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
@@ -957,14 +807,10 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
     if (window->context.destroy)
         window->context.destroy(window);
 
-    destroyDecorations(window);
-
+    free_all_csd_resources(window);
     if (window->wl.xdg.decoration)
         zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
 
-    if (window->wl.decorations.buffer)
-        wl_buffer_destroy(window->wl.decorations.buffer);
-
     if (window->wl.native)
         wl_egl_window_destroy(window->wl.native);
 
@@ -985,14 +831,16 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
 
 void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
 {
-    if (window->wl.title)
+    if (window->wl.title) {
+        if (title && strcmp(title, window->wl.title) == 0) return;
         free(window->wl.title);
+    } else if (!title) return;
     // Wayland cannot handle requests larger than ~8200 bytes. Sending
     // one causes an abort(). Since titles this large are meaningless anyway
     // ensure they do not happen.
     window->wl.title = utf_8_strndup(title, 2048);
-    if (window->wl.xdg.toplevel)
-        xdg_toplevel_set_title(window->wl.xdg.toplevel, window->wl.title);
+    if (window->wl.xdg.toplevel) xdg_toplevel_set_title(window->wl.xdg.toplevel, window->wl.title);
+    change_csd_title(window);
 }
 
 void _glfwPlatformSetWindowIcon(_GLFWwindow* window UNUSED,
@@ -1006,9 +854,12 @@ void _glfwPlatformGetWindowPos(_GLFWwindow* window UNUSED, int* xpos UNUSED, int
 {
     // A Wayland client is not aware of its position, so just warn and leave it
     // as (0, 0)
-
-    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
-                    "Wayland: The platform does not provide the window position");
+    static bool warned_once = false;
+    if (!warned_once) {
+        _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                        "Wayland: The platform does not provide the window position");
+        warned_once = true;
+    }
 }
 
 void _glfwPlatformSetWindowPos(_GLFWwindow* window UNUSED, int xpos UNUSED, int ypos UNUSED)
@@ -1030,9 +881,15 @@ void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
 void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
 {
     if (width != window->wl.width || height != window->wl.height) {
-        window->wl.width = width;
-        window->wl.height = height;
+        window->wl.user_requested_content_size.width = width;
+        window->wl.user_requested_content_size.height = height;
+        int32_t width = 0, height = 0;
+        set_csd_window_geometry(window, &width, &height);
+        window->wl.width = width; window->wl.height = height;
         resizeFramebuffer(window);
+        ensure_csd_resources(window);
+        wl_surface_commit(window->wl.surface);
+        inform_compositor_of_window_geometry(window, "SetWindowSize");
     }
 }
 
@@ -1085,13 +942,13 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
     if (window->decorated && !window->monitor && !window->wl.decorations.serverSide)
     {
         if (top)
-            *top = _GLFW_DECORATION_TOP;
+            *top = window->wl.decorations.metrics.top;
         if (left)
-            *left = _GLFW_DECORATION_WIDTH;
+            *left = window->wl.decorations.metrics.width;
         if (right)
-            *right = _GLFW_DECORATION_WIDTH;
+            *right = window->wl.decorations.metrics.width;
         if (bottom)
-            *bottom = _GLFW_DECORATION_WIDTH;
+            *bottom = window->wl.decorations.metrics.width;
     }
 }
 
@@ -1121,13 +978,12 @@ void _glfwPlatformRestoreWindow(_GLFWwindow* window)
     {
         if (window->monitor)
             xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
-        if (window->wl.maximized)
+        if (window->wl.toplevel_states & TOPLEVEL_STATE_MAXIMIZED)
             xdg_toplevel_unset_maximized(window->wl.xdg.toplevel);
         // There is no way to unset minimized, or even to know if we are
         // minimized, so there is nothing to do in this case.
     }
     _glfwInputWindowMonitor(window, NULL);
-    window->wl.maximized = false;
 }
 
 void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
@@ -1136,7 +992,6 @@ void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
     {
         xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
     }
-    window->wl.maximized = true;
 }
 
 void _glfwPlatformShowWindow(_GLFWwindow* window)
@@ -1202,7 +1057,7 @@ void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
 
 int _glfwPlatformWindowFocused(_GLFWwindow* window)
 {
-    return _glfw.wl.keyboardFocus == window;
+    return _glfw.wl.keyboardFocusId = window ? window->id : 0;
 }
 
 int _glfwPlatformWindowOccluded(_GLFWwindow* window UNUSED)
@@ -1224,7 +1079,7 @@ int _glfwPlatformWindowVisible(_GLFWwindow* window)
 
 int _glfwPlatformWindowMaximized(_GLFWwindow* window)
 {
-    return window->wl.maximized;
+    return window->wl.toplevel_states & TOPLEVEL_STATE_MAXIMIZED;
 }
 
 int _glfwPlatformWindowHovered(_GLFWwindow* window)
@@ -1249,9 +1104,9 @@ void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, bool enabled)
     if (!window->monitor)
     {
         if (enabled)
-            createDecorations(window);
+            ensure_csd_resources(window);
         else
-            destroyDecorations(window);
+            free_csd_surfaces(window);
     }
 }
 
@@ -1350,7 +1205,7 @@ const char* _glfwPlatformGetNativeKeyName(int native_key)
     return glfw_xkb_keysym_name(native_key);
 }
 
-int _glfwPlatformGetNativeKeyForKey(int key)
+int _glfwPlatformGetNativeKeyForKey(uint32_t key)
 {
     return glfw_xkb_sym_for_key(key);
 }
@@ -1359,9 +1214,10 @@ int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
                               const GLFWimage* image,
                               int xhot, int yhot, int count UNUSED)
 {
-    cursor->wl.buffer = createShmBuffer(image);
+    cursor->wl.buffer = createShmBuffer(image, false, true);
     if (!cursor->wl.buffer)
         return false;
+
     cursor->wl.width = image->width;
     cursor->wl.height = image->height;
     cursor->wl.xhot = xhot;
@@ -1509,7 +1365,7 @@ void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
 
     // If we're not in the correct window just save the cursor
     // the next time the pointer enters the window the cursor will change
-    if (window != _glfw.wl.pointerFocus || window->wl.decorations.focus != mainWindow)
+    if (window != _glfw.wl.pointerFocus || window->wl.decorations.focus != CENTRAL_WINDOW)
         return;
 
     // Unlock possible pointer lock if no longer disabled.
@@ -1518,7 +1374,7 @@ void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
 
     if (window->cursorMode == GLFW_CURSOR_NORMAL)
     {
-        setCursorImage(window);
+        setCursorImage(window, false);
     }
     else if (window->cursorMode == GLFW_CURSOR_DISABLED)
     {
@@ -2101,11 +1957,6 @@ VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
     return err;
 }
 
-void
-_glfwPlatformUpdateIMEState(_GLFWwindow *w, int which, int a, int b, int c, int d) {
-    glfw_xkb_update_ime_state(w, &_glfw.wl.xkb, which, a, b, c, d);
-}
-
 static void
 frame_handle_redraw(void *data, struct wl_callback *callback, uint32_t time UNUSED) {
     _GLFWwindow* window = (_GLFWwindow*) data;
@@ -2116,6 +1967,16 @@ frame_handle_redraw(void *data, struct wl_callback *callback, uint32_t time UNUS
     wl_callback_destroy(callback);
 }
 
+void
+_glfwPlatformChangeCursorTheme(void) {
+    glfw_wlc_destroy();
+    _GLFWwindow *w = _glfw.windowListHead;
+    while (w) {
+        setCursorImage(w, true);
+        w = w->next;
+    }
+
+}
 
 //////////////////////////////////////////////////////////////////////////
 //////                        GLFW native API                       //////
@@ -2158,3 +2019,12 @@ GLFWAPI unsigned long long glfwDBusUserNotify(const char *app_name, const char*
 GLFWAPI void glfwDBusSetUserNotificationHandler(GLFWDBusnotificationactivatedfun handler) {
     glfw_dbus_set_user_notification_activated_handler(handler);
 }
+
+GLFWAPI bool glfwWaylandSetTitlebarColor(GLFWwindow *handle, uint32_t color, bool use_system_color) {
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    if (!window->wl.decorations.serverSide) {
+        set_titlebar_color(window, color, use_system_color);
+        return true;
+    }
+    return false;
+}