version 0.12.1

Fixes #873
The wrong window's OpenGL context was current when creating the tabs.

__main__.py

@@ -7,8 +7,9 @@ import os
 
 
 def icat(args):
-    from kittens.icat.main import main
-    main(args)
+    from kittens.runner import run_kitten
+    sys.argv = args
+    run_kitten('icat')
 
 
 def list_fonts(args):
@@ -41,7 +42,13 @@ def complete(args):
 def launch(args):
     import runpy
     sys.argv = args[1:]
-    runpy.run_path(args[1], run_name='__main__')
+    exe = args[1]
+    if exe.startswith(':'):
+        import shutil
+        exe = shutil.which(exe[1:])
+        if not exe:
+            raise SystemExit('{} not found in PATH'.format(args[1][1:]))
+    runpy.run_path(exe, run_name='__main__')
 
 
 def run_kitten(args):

docs/Makefile

@@ -3,7 +3,7 @@
 
 # You can set these variables from the command line.
 SPHINXOPTS    = -T $(FAIL_WARN)
-SPHINXBUILD   = python3 .. +launch $(shell which sphinx-build)
+SPHINXBUILD   = python3 .. +launch :sphinx-build
 SPHINXPROJ    = kitty
 SOURCEDIR     = .
 BUILDDIR      = _build

docs/binary.rst

@@ -58,6 +58,13 @@ Customizing the installation
      |ins| \\
          installer=/path/to/dmg or tarball
 
+Uninstalling
+----------------
+
+All the installer does is copy the kitty files into the install directory
+(defaults to :file:`~/.local/kitty.app`). To uninstall, simply delete that
+directory.
+
 
 Building from source
 ------------------------

docs/changelog.rst

@@ -3,6 +3,49 @@ Changelog
 
 |kitty| is a feature full, cross-platform, *fast*, GPU based terminal emulator.
 
+0.12.1 [2018-09-08]
+------------------------------
+
+- Add a new :option:`kitty --start-in-fullscreen` command line flag to start
+  kitty in full screen mode (:iss:`856`)
+
+- macOS: Fix a character that cannot be rendered in any font causing
+  font fallback for all subsequent characters that cannot be rendered in the
+  main font to fail (:iss:`799`)
+
+- Linux: Do not enable IME input via ibus unless the ``GLFW_IM_MODULE=ibus``
+  environment variable is set. IME causes key processing latency and even
+  missed keystrokes for many people, so it is now off by default.
+
+- Fix backspacing of wide characters in wide-character unaware programs not working (:iss:`875`)
+
+- Linux: Fix number pad arrow keys not working when Numlock is off (:iss:`857`)
+
+- Wayland: Implement support for clipboard copy/paste (:iss:`855`)
+
+- Allow mapping shortcuts using the raw key code from the OS (:iss:`848`)
+
+- Allow mapping of individual key-presses without modifiers as shortcuts
+
+- Fix legacy invocation of icat as `kitty icat` not working (:iss:`850`)
+
+- Improve rendering of wavy underline at small font sizes (:iss:`853`)
+
+- Fix a regression in 0.12.0 that broke dynamic resizing of layouts (:iss:`860`)
+
+- Wayland: Allow using the :option:`kitty --class` command line flag
+  to set the app id (:iss:`862`)
+
+- Add completion of the kitty command for the fish shell (:pull:`829`)
+
+- Linux: Fix XCompose rules with no defined symbol not working (:iss:`880`)
+
+- Linux: Fix crash with some Nvidia drivers when creating tabs in the first
+  top level-window after creating a second top-level window. (:iss:`873`)
+
+- macOS: Diff kitten: Fix syntax highlighting not working because of
+  a bug in the 0.12.0 macOS package
+
 0.12.0 [2018-09-01]
 ------------------------------
 

docs/graphics-protocol.rst

@@ -19,7 +19,7 @@ For some discussion regarding the design choices, see `#33
 
 To see a quick demo, inside a |kitty| terminal run::
 
-    kitty icat path/to/some/image.png
+    kitty +kitten icat path/to/some/image.png
 
 You can also see a screenshot with more sophisticated features such as
 alpha-blending and text over graphics.

docs/index.rst

@@ -51,7 +51,8 @@ Quickstart
 --------------
 
 Pre-built binaries of |kitty| are available for both macOS and Linux.
-See the :doc:`binary install instructions </binary>`.
+See the :doc:`binary install instructions </binary>`. You can also
+:doc:`build from source </build>`.
 
 If you are on Linux, you can also use your distribution's |kitty| package.
 |kitty| packages are available for:
@@ -60,7 +61,8 @@ If you are on Linux, you can also use your distribution's |kitty| package.
 `Arch Linux <https://www.archlinux.org/packages/community/x86_64/kitty/>`_,
 `NixOS <https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/misc/kitty/default.nix>`_,
 `Gentoo <https://packages.gentoo.org/packages/x11-terms/kitty>`_,
-`Fedora <https://copr.fedorainfracloud.org/coprs/oleastre/kitty-terminal/>`_.
+`Fedora <https://copr.fedorainfracloud.org/coprs/gagbo/kitty-latest/>`_,
+`Void Linux <https://github.com/void-linux/void-packages/blob/master/srcpkgs/kitty/template>`_.
 
 See :doc:`Configuring kitty <conf>` for help on configuring |kitty| and
 :doc:`Invocation <invocation>` for the command line arguments |kitty| supports.
@@ -123,7 +125,7 @@ Action                      Shortcut
 New tab                     :sc:`new_tab`
 Close tab                   :sc:`close_tab`
 Next tab                    :sc:`next_tab` (also :kbd:`control+tab` on macOS)
-Previous tab                :sc:`previous_tab`
+Previous tab                :sc:`previous_tab` (also :kbd:`control+shift+tab` on macOS)
 Next layout                 :sc:`next_layout`
 Move tab forward            :sc:`move_tab_forward`
 Move tab backward           :sc:`move_tab_backward`
@@ -181,6 +183,9 @@ Reset background opacity            :sc:`reset_background_opacity`
 Layouts
 ----------
 
+A layout is an arrangement of multiple *windows*. You can create a new window
+using the :sc:`new_window` key combination.
+
 Currently, there are five layouts available,
 
 * **Stack** -- Only a single maximized window is shown at a time
@@ -384,6 +389,16 @@ 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
+~~~~~~~~
+
+Add the following to your :file:`~/.config/fish/config.fish`
+
+.. code-block:: sh
+
+   kitty + complete setup fish | source
+
+
 Changelog
 ------------------
 

docs/kittens/icat.rst

@@ -10,6 +10,12 @@ It supports all image types supported by `ImageMagick
 <https://www.imagemagick.org>`_. It even works over SSH. For details, see
 the :doc:`kitty graphics protocol </graphics-protocol>`.
 
+You might want to create an alias in your shell's configuration files::
+
+   alias icat="kitty +kitten icat"
+
+Then you can simply use ``icat image.png`` to view images.
+
 .. note::
 
     `ImageMagick <https://www.imagemagick.org>`_ must be installed for ``icat`` to

docs/performance.rst

@@ -8,10 +8,10 @@ glyph in video RAM so that font rendering is not a bottleneck.  Interaction
 with child programs takes place in a separate thread from rendering, to improve
 smoothness.
 
-There are two parameters you can tune to adjust the performance. ``repaint_delay``
-and ``input_delay``. These control the artificial delays introduced into the
+There are two parameters you can tune to adjust the performance. :opt:`repaint_delay`
+and :opt:`input_delay`. These control the artificial delays introduced into the
 render loop to reduce CPU usage. See :ref:`conf-kitty-performance` for details.
-See also the ``sync_to_monitor`` option to further decrease latency at the cost
+See also the :opt:`sync_to_monitor` option to further decrease latency at the cost
 of some `tearing <https://en.wikipedia.org/wiki/Screen_tearing>`_ while scrolling.
 
 You can generate detailed per-function performance data using

glfw/backend_utils.c

@@ -261,3 +261,54 @@ closeFds(int *fds, size_t count) {
         fds++;
     }
 }
+
+// Splits and translates a text/uri-list into separate file paths
+// NOTE: This function destroys the provided string
+//
+char** parseUriList(char* text, int* count)
+{
+    const char* prefix = "file://";
+    char** paths = NULL;
+    char* line;
+
+    *count = 0;
+
+    while ((line = strtok(text, "\r\n")))
+    {
+        text = NULL;
+
+        if (line[0] == '#')
+            continue;
+
+        if (strncmp(line, prefix, strlen(prefix)) == 0)
+        {
+            line += strlen(prefix);
+            // TODO: Validate hostname
+            while (*line != '/')
+                line++;
+        }
+
+        (*count)++;
+
+        char* path = calloc(strlen(line) + 1, 1);
+        paths = realloc(paths, *count * sizeof(char*));
+        paths[*count - 1] = path;
+
+        while (*line)
+        {
+            if (line[0] == '%' && line[1] && line[2])
+            {
+                const char digits[3] = { line[1], line[2], '\0' };
+                *path = strtol(digits, NULL, 16);
+                line += 2;
+            }
+            else
+                *path = *line;
+
+            path++;
+            line++;
+        }
+    }
+
+    return paths;
+}

glfw/backend_utils.h

@@ -71,3 +71,4 @@ int pollForEvents(EventLoopData *eld, double timeout);
 unsigned dispatchTimers(EventLoopData *eld);
 void closeFds(int *fds, size_t count);
 void initPollData(EventLoopData *eld, int wakeup_fd, int display_fd);
+char** parseUriList(char* text, int* count);

glfw/glfw.py

@@ -128,16 +128,6 @@ def collect_source_information():
     return ans
 
 
-def patch_in_file(path, pfunc):
-    with open(path, 'r+') as f:
-        raw = f.read()
-        nraw = pfunc(raw)
-        if raw == nraw:
-            raise SystemExit('Patching of {} failed'.format(path))
-        f.seek(0), f.truncate()
-        f.write(nraw)
-
-
 class Arg:
 
     def __init__(self, decl):
@@ -283,8 +273,6 @@ def from_glfw(glfw_dir):
     for src in files_to_copy:
         shutil.copy2(src, '.')
     shutil.copy2(glfw_header, '.')
-    patch_in_file('cocoa_window.m', lambda x: re.sub(
-        r'[(]void[)]loadMainMenu.+?}', '(void)loadMainMenu\n{ // removed by Kovid as it generated compiler warnings \n}\n', x, flags=re.DOTALL))
     json.dump(
         sinfo,
         open('source-info.json', 'w'),

glfw/glfw3.h

@@ -973,6 +973,10 @@ extern "C" {
  *  [attribute](@ref GLFW_CLIENT_API_attrib).
  */
 #define GLFW_CONTEXT_CREATION_API   0x0002200B
+/*! @brief Window content area scaling window
+ *  [window hint](@ref GLFW_SCALE_TO_MONITOR).
+ */
+#define GLFW_SCALE_TO_MONITOR       0x0002200C
 
 #define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
 #define GLFW_COCOA_FRAME_NAME         0x00023002
@@ -980,6 +984,8 @@ extern "C" {
 
 #define GLFW_X11_CLASS_NAME         0x00024001
 #define GLFW_X11_INSTANCE_NAME      0x00024002
+
+#define GLFW_WAYLAND_APP_ID         0x00025001
 /*! @} */
 
 #define GLFW_NO_API                          0

glfw/ibus_glfw.c

@@ -280,8 +280,7 @@ setup_connection(_GLFWIBUSData *ibus) {
 void
 glfw_connect_to_ibus(_GLFWIBUSData *ibus) {
     if (ibus->inited) return;
-    if (!test_env_var("XMODIFIERS", "@im=ibus") && !test_env_var("GTK_IM_MODULE", "ibus") && !test_env_var("QT_IM_MODULE", "ibus") && !test_env_var("GLFW_IM_MODULE", "ibus")) return;
-    if (getenv("GLFW_IM_MODULE") && !test_env_var("GLFW_IM_MODULE", "ibus")) return;
+    if (!test_env_var("GLFW_IM_MODULE", "ibus")) return;
     ibus->inited = GLFW_TRUE;
     setup_connection(ibus);
 }

glfw/internal.h

@@ -31,6 +31,8 @@
  #include "glfw_config.h"
 #endif
 
+#define arraysz(x) (sizeof(x)/sizeof(x[0]))
+
 #if defined(GLFW_INCLUDE_GLCOREARB) || \
     defined(GLFW_INCLUDE_ES1)       || \
     defined(GLFW_INCLUDE_ES2)       || \
@@ -271,6 +273,7 @@ struct _GLFWwndconfig
     GLFWbool      maximized;
     GLFWbool      centerCursor;
     GLFWbool      focusOnShow;
+    GLFWbool      scaleToMonitor;
     struct {
         GLFWbool  retina;
         char      frameName[256];
@@ -279,6 +282,9 @@ struct _GLFWwndconfig
         char      className[256];
         char      instanceName[256];
     } x11;
+    struct {
+        char      appId[256];
+    } wl;
 };
 
 // Context configuration

glfw/wgl_context.c

@@ -256,12 +256,20 @@ static void makeContextCurrentWGL(_GLFWwindow* window)
 
 static void swapBuffersWGL(_GLFWwindow* window)
 {
-    // HACK: Use DwmFlush when desktop composition is enabled
-    if (_glfwIsCompositionEnabledWin32() && !window->monitor)
+    if (!window->monitor)
     {
-        int count = abs(window->context.wgl.interval);
-        while (count--)
-            DwmFlush();
+        if (IsWindowsVistaOrGreater())
+        {
+            BOOL enabled;
+
+            // HACK: Use DwmFlush when desktop composition is enabled
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+            {
+                int count = abs(window->context.wgl.interval);
+                while (count--)
+                    DwmFlush();
+            }
+        }
     }
 
     SwapBuffers(window->context.wgl.dc);
@@ -273,10 +281,18 @@ static void swapIntervalWGL(int interval)
 
     window->context.wgl.interval = interval;
 
-    // HACK: Disable WGL swap interval when desktop composition is enabled to
-    //       avoid interfering with DWM vsync
-    if (_glfwIsCompositionEnabledWin32() && !window->monitor)
-        interval = 0;
+    if (!window->monitor)
+    {
+        if (IsWindowsVistaOrGreater())
+        {
+            BOOL enabled;
+
+            // HACK: Disable WGL swap interval when desktop composition is enabled to
+            //       avoid interfering with DWM vsync
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+                interval = 0;
+        }
+    }
 
     if (_glfw.wgl.EXT_swap_control)
         _glfw.wgl.SwapIntervalEXT(interval);

glfw/win32_init.c

@@ -62,17 +62,6 @@ BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
 
 #endif // _GLFW_BUILD_DLL
 
-// HACK: Define versionhelpers.h functions manually as MinGW lacks the header
-BOOL IsWindowsVersionOrGreater(WORD major, WORD minor, WORD sp)
-{
-    OSVERSIONINFOEXW osvi = { sizeof(osvi), major, minor, 0, 0, {0}, sp };
-    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR;
-    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
-    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
-    cond = VerSetConditionMask(cond, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
-    return VerifyVersionInfoW(&osvi, mask, cond);
-}
-
 // Load necessary libraries (DLLs)
 //
 static GLFWbool loadLibraries(void)
@@ -100,6 +89,14 @@ static GLFWbool loadLibraries(void)
         GetProcAddress(_glfw.win32.user32.instance, "SetProcessDPIAware");
     _glfw.win32.user32.ChangeWindowMessageFilterEx_ = (PFN_ChangeWindowMessageFilterEx)
         GetProcAddress(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");
+    _glfw.win32.user32.EnableNonClientDpiScaling_ = (PFN_EnableNonClientDpiScaling)
+        GetProcAddress(_glfw.win32.user32.instance, "EnableNonClientDpiScaling");
+    _glfw.win32.user32.SetProcessDpiAwarenessContext_ = (PFN_SetProcessDpiAwarenessContext)
+        GetProcAddress(_glfw.win32.user32.instance, "SetProcessDpiAwarenessContext");
+    _glfw.win32.user32.GetDpiForWindow_ = (PFN_GetDpiForWindow)
+        GetProcAddress(_glfw.win32.user32.instance, "GetDpiForWindow");
+    _glfw.win32.user32.AdjustWindowRectExForDpi_ = (PFN_AdjustWindowRectExForDpi)
+        GetProcAddress(_glfw.win32.user32.instance, "AdjustWindowRectExForDpi");
 
     _glfw.win32.dinput8.instance = LoadLibraryA("dinput8.dll");
     if (_glfw.win32.dinput8.instance)
@@ -155,6 +152,13 @@ static GLFWbool loadLibraries(void)
             GetProcAddress(_glfw.win32.shcore.instance, "GetDpiForMonitor");
     }
 
+    _glfw.win32.ntdll.instance = LoadLibraryA("ntdll.dll");
+    if (_glfw.win32.ntdll.instance)
+    {
+        _glfw.win32.ntdll.RtlVerifyVersionInfo_ = (PFN_RtlVerifyVersionInfo)
+            GetProcAddress(_glfw.win32.ntdll.instance, "RtlVerifyVersionInfo");
+    }
+
     return GLFW_TRUE;
 }
 
@@ -179,6 +183,9 @@ static void freeLibraries(void)
 
     if (_glfw.win32.shcore.instance)
         FreeLibrary(_glfw.win32.shcore.instance);
+
+    if (_glfw.win32.ntdll.instance)
+        FreeLibrary(_glfw.win32.ntdll.instance);
 }
 
 // Create key code translation tables
@@ -309,6 +316,7 @@ static void createKeyTables(void)
     _glfw.win32.keycodes[0x053] = GLFW_KEY_KP_DECIMAL;
     _glfw.win32.keycodes[0x135] = GLFW_KEY_KP_DIVIDE;
     _glfw.win32.keycodes[0x11C] = GLFW_KEY_KP_ENTER;
+    _glfw.win32.keycodes[0x059] = GLFW_KEY_KP_EQUAL;
     _glfw.win32.keycodes[0x037] = GLFW_KEY_KP_MULTIPLY;
     _glfw.win32.keycodes[0x04A] = GLFW_KEY_KP_SUBTRACT;
 
@@ -339,8 +347,8 @@ static HWND createHelperWindow(void)
         return NULL;
     }
 
-    // HACK: The first call to ShowWindow is ignored if the parent process
-    //       passed along a STARTUPINFO, so clear that flag with a no-op call
+    // HACK: The command to the first ShowWindow call is ignored if the parent
+    //       process passed along a STARTUPINFO, so clear that with a no-op call
     ShowWindow(window, SW_HIDE);
 
     // Register for HID device notifications
@@ -502,6 +510,36 @@ void _glfwUpdateKeyNamesWin32(void)
     }
 }
 
+// Replacement for IsWindowsVersionOrGreater as MinGW lacks versionhelpers.h
+//
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), major, minor, 0, 0, {0}, sp };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embedd a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
+// Checks whether we are on at least the specified build of Windows 10
+//
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), 10, 0, build };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_BUILDNUMBER, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embedd a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
 
 //////////////////////////////////////////////////////////////////////////
 //////                       GLFW platform API                      //////
@@ -523,7 +561,9 @@ int _glfwPlatformInit(void)
     createKeyTables();
     _glfwUpdateKeyNamesWin32();
 
-    if (IsWindows8Point1OrGreater())
+    if (_glfwIsWindows10CreatorsUpdateOrGreaterWin32())
+        SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
+    else if (IsWindows8Point1OrGreater())
         SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
     else if (IsWindowsVistaOrGreater())
         SetProcessDPIAware();

glfw/win32_monitor.c

@@ -324,9 +324,9 @@ void _glfwGetMonitorContentScaleWin32(HMONITOR handle, float* xscale, float* ysc
     }
 
     if (xscale)
-        *xscale = xdpi / 96.f;
+        *xscale = xdpi / (float) USER_DEFAULT_SCREEN_DPI;
     if (yscale)
-        *yscale = ydpi / 96.f;
+        *yscale = ydpi / (float) USER_DEFAULT_SCREEN_DPI;
 }
 
 

glfw/win32_platform.h

@@ -98,6 +98,12 @@
 #ifndef _WIN32_WINNT_WINBLUE
  #define _WIN32_WINNT_WINBLUE 0x0602
 #endif
+#ifndef WM_GETDPISCALEDSIZE
+ #define WM_GETDPISCALEDSIZE 0x02e4
+#endif
+#ifndef USER_DEFAULT_SCREEN_DPI
+ #define USER_DEFAULT_SCREEN_DPI 96
+#endif
 
 #if WINVER < 0x0601
 typedef struct
@@ -140,23 +146,32 @@ typedef enum
 } MONITOR_DPI_TYPE;
 #endif /*DPI_ENUMS_DECLARED*/
 
+#ifndef _DPI_AWARENESS_CONTEXTS_
+DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
+#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((DPI_AWARENESS_CONTEXT) -4)
+#endif /*_DPI_AWARENESS_CONTEXTS_*/
+
 // HACK: Define versionhelpers.h functions manually as MinGW lacks the header
-BOOL IsWindowsVersionOrGreater(WORD major, WORD minor, WORD sp);
 #define IsWindowsXPOrGreater()                                 \
-    IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP),      \
-                              LOBYTE(_WIN32_WINNT_WINXP), 0)
-#define IsWindowsVistaOrGreater()                              \
-    IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA),      \
-                              LOBYTE(_WIN32_WINNT_VISTA), 0)
-#define IsWindows7OrGreater()                                  \
-    IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7),       \
-                              LOBYTE(_WIN32_WINNT_WIN7), 0)
-#define IsWindows8OrGreater()                                  \
-    IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN8),       \
-                              LOBYTE(_WIN32_WINNT_WIN8), 0)
-#define IsWindows8Point1OrGreater()                            \
-    IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINBLUE),    \
-                              LOBYTE(_WIN32_WINNT_WINBLUE), 0)
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WINXP),   \
+                                        LOBYTE(_WIN32_WINNT_WINXP), 0)
+#define IsWindowsVistaOrGreater()                                     \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_VISTA),   \
+                                        LOBYTE(_WIN32_WINNT_VISTA), 0)
+#define IsWindows7OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN7),    \
+                                        LOBYTE(_WIN32_WINNT_WIN7), 0)
+#define IsWindows8OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN8),    \
+                                        LOBYTE(_WIN32_WINNT_WIN8), 0)
+#define IsWindows8Point1OrGreater()                                   \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WINBLUE), \
+                                        LOBYTE(_WIN32_WINNT_WINBLUE), 0)
+
+#define _glfwIsWindows10AnniversaryUpdateOrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(14393)
+#define _glfwIsWindows10CreatorsUpdateOrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(15063)
 
 // HACK: Define macros that some xinput.h variants don't
 #ifndef XINPUT_CAPS_WIRELESS
@@ -209,8 +224,16 @@ typedef HRESULT (WINAPI * PFN_DirectInput8Create)(HINSTANCE,DWORD,REFIID,LPVOID*
 // user32.dll function pointer typedefs
 typedef BOOL (WINAPI * PFN_SetProcessDPIAware)(void);
 typedef BOOL (WINAPI * PFN_ChangeWindowMessageFilterEx)(HWND,UINT,DWORD,CHANGEFILTERSTRUCT*);
+typedef BOOL (WINAPI * PFN_EnableNonClientDpiScaling)(HWND);
+typedef BOOL (WINAPI * PFN_SetProcessDpiAwarenessContext)(DPI_AWARENESS_CONTEXT);
+typedef UINT (WINAPI * PFN_GetDpiForWindow)(HWND);
+typedef BOOL (WINAPI * PFN_AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UINT);
 #define SetProcessDPIAware _glfw.win32.user32.SetProcessDPIAware_
 #define ChangeWindowMessageFilterEx _glfw.win32.user32.ChangeWindowMessageFilterEx_
+#define EnableNonClientDpiScaling _glfw.win32.user32.EnableNonClientDpiScaling_
+#define SetProcessDpiAwarenessContext _glfw.win32.user32.SetProcessDpiAwarenessContext_
+#define GetDpiForWindow _glfw.win32.user32.GetDpiForWindow_
+#define AdjustWindowRectExForDpi _glfw.win32.user32.AdjustWindowRectExForDpi_
 
 // dwmapi.dll function pointer typedefs
 typedef HRESULT (WINAPI * PFN_DwmIsCompositionEnabled)(BOOL*);
@@ -226,6 +249,10 @@ typedef HRESULT (WINAPI * PFN_GetDpiForMonitor)(HMONITOR,MONITOR_DPI_TYPE,UINT*,
 #define SetProcessDpiAwareness _glfw.win32.shcore.SetProcessDpiAwareness_
 #define GetDpiForMonitor _glfw.win32.shcore.GetDpiForMonitor_
 
+// ntdll.dll function pointer typedefs
+typedef LONG (WINAPI * PFN_RtlVerifyVersionInfo)(OSVERSIONINFOEXW*,ULONG,ULONGLONG);
+#define RtlVerifyVersionInfo _glfw.win32.ntdll.RtlVerifyVersionInfo_
+
 typedef VkFlags VkWin32SurfaceCreateFlagsKHR;
 
 typedef struct VkWin32SurfaceCreateInfoKHR
@@ -279,6 +306,7 @@ typedef struct _GLFWwindowWin32
     GLFWbool            maximized;
     // Whether to enable framebuffer transparency on DWM
     GLFWbool            transparent;
+    GLFWbool            scaleToMonitor;
 
     // The last received cursor position, regardless of source
     int                 lastCursorPosX, lastCursorPosY;
@@ -326,6 +354,10 @@ typedef struct _GLFWlibraryWin32
         HINSTANCE                       instance;
         PFN_SetProcessDPIAware          SetProcessDPIAware_;
         PFN_ChangeWindowMessageFilterEx ChangeWindowMessageFilterEx_;
+        PFN_EnableNonClientDpiScaling   EnableNonClientDpiScaling_;
+        PFN_SetProcessDpiAwarenessContext SetProcessDpiAwarenessContext_;
+        PFN_GetDpiForWindow             GetDpiForWindow_;
+        PFN_AdjustWindowRectExForDpi    AdjustWindowRectExForDpi_;
     } user32;
 
     struct {
@@ -341,6 +373,11 @@ typedef struct _GLFWlibraryWin32
         PFN_GetDpiForMonitor            GetDpiForMonitor_;
     } shcore;
 
+    struct {
+        HINSTANCE                       instance;
+        PFN_RtlVerifyVersionInfo        RtlVerifyVersionInfo_;
+    } ntdll;
+
 } _GLFWlibraryWin32;
 
 // Win32-specific per-monitor data
@@ -396,10 +433,11 @@ typedef struct _GLFWmutexWin32
 
 GLFWbool _glfwRegisterWindowClassWin32(void);
 void _glfwUnregisterWindowClassWin32(void);
-GLFWbool _glfwIsCompositionEnabledWin32(void);
 
 WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source);
 char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source);
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp);
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build);
 void _glfwInputErrorWin32(int error, const char* description);
 void _glfwUpdateKeyNamesWin32(void);
 

glfw/win32_window.c

@@ -186,14 +186,20 @@ static HICON createIcon(const GLFWimage* image,
     return handle;
 }
 
-// Translate client window size to full window size according to styles
+// Translate client window size to full window size according to styles and DPI
 //
 static void getFullWindowSize(DWORD style, DWORD exStyle,
                               int clientWidth, int clientHeight,
-                              int* fullWidth, int* fullHeight)
+                              int* fullWidth, int* fullHeight,
+                              UINT dpi)
 {
     RECT rect = { 0, 0, clientWidth, clientHeight };
-    AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+
+    if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+        AdjustWindowRectExForDpi(&rect, style, FALSE, exStyle, dpi);
+    else
+        AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+
     *fullWidth = rect.right - rect.left;
     *fullHeight = rect.bottom - rect.top;
 }
@@ -206,7 +212,8 @@ static void applyAspectRatio(_GLFWwindow* window, int edge, RECT* area)
     const float ratio = (float) window->numer / (float) window->denom;
 
     getFullWindowSize(getWindowStyle(window), getWindowExStyle(window),
-                      0, 0, &xoff, &yoff);
+                      0, 0, &xoff, &yoff,
+                      GetDpiForWindow(window->win32.handle));
 
     if (edge == WMSZ_LEFT  || edge == WMSZ_BOTTOMLEFT ||
         edge == WMSZ_RIGHT || edge == WMSZ_BOTTOMRIGHT)
@@ -337,7 +344,16 @@ static void updateWindowStyles(const _GLFWwindow* window)
     style |= getWindowStyle(window);
 
     GetClientRect(window->win32.handle, &rect);
-    AdjustWindowRectEx(&rect, style, FALSE, getWindowExStyle(window));
+
+    if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, style, FALSE,
+                                 getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+        AdjustWindowRectEx(&rect, style, FALSE, getWindowExStyle(window));
+
     ClientToScreen(window->win32.handle, (POINT*) &rect.left);
     ClientToScreen(window->win32.handle, (POINT*) &rect.right);
     SetWindowLongW(window->win32.handle, GWL_STYLE, style);
@@ -351,10 +367,12 @@ static void updateWindowStyles(const _GLFWwindow* window)
 //
 static void updateFramebufferTransparency(const _GLFWwindow* window)
 {
+    BOOL enabled;
+
     if (!IsWindowsVistaOrGreater())
         return;
 
-    if (_glfwIsCompositionEnabledWin32())
+    if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
     {
         HRGN region = CreateRectRgn(0, 0, -1, -1);
         DWM_BLURBEHIND bb = {0};
@@ -396,29 +414,6 @@ static void updateFramebufferTransparency(const _GLFWwindow* window)
     }
 }
 
-// Translates a GLFW standard cursor to a resource ID
-//
-static LPWSTR translateCursorShape(int shape)
-{
-    switch (shape)
-    {
-        case GLFW_ARROW_CURSOR:
-            return IDC_ARROW;
-        case GLFW_IBEAM_CURSOR:
-            return IDC_IBEAM;
-        case GLFW_CROSSHAIR_CURSOR:
-            return IDC_CROSS;
-        case GLFW_HAND_CURSOR:
-            return IDC_HAND;
-        case GLFW_HRESIZE_CURSOR:
-            return IDC_SIZEWE;
-        case GLFW_VRESIZE_CURSOR:
-            return IDC_SIZENS;
-    }
-
-    return NULL;
-}
-
 // Retrieves and translates modifier keys
 //
 static int getKeyMods(void)
@@ -578,9 +573,18 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
     if (!window)
     {
         // This is the message handling for the hidden helper window
+        // and for a regular window during its initial creation
 
         switch (uMsg)
         {
+            case WM_NCCREATE:
+            {
+                if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+                    EnableNonClientDpiScaling(hWnd);
+
+                break;
+            }
+
             case WM_DISPLAYCHANGE:
                 _glfwPollMonitorsWin32();
                 break;
@@ -1003,7 +1007,8 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
                 break;
 
             getFullWindowSize(getWindowStyle(window), getWindowExStyle(window),
-                              0, 0, &xoff, &yoff);
+                              0, 0, &xoff, &yoff,
+                              GetDpiForWindow(window->win32.handle));
 
             if (window->minwidth != GLFW_DONT_CARE &&
                 window->minheight != GLFW_DONT_CARE)
@@ -1056,10 +1061,52 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
             return 0;
         }
 
+        case WM_GETDPISCALEDSIZE:
+        {
+            if (window->win32.scaleToMonitor)
+                break;
+
+            // Adjust the window size to keep the client area size constant
+            if (_glfwIsWindows10CreatorsUpdateOrGreaterWin32())
+            {
+                RECT source = {0}, target = {0};
+                SIZE* size = (SIZE*) lParam;
+
+                AdjustWindowRectExForDpi(&source, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         GetDpiForWindow(window->win32.handle));
+                AdjustWindowRectExForDpi(&target, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         LOWORD(wParam));
+
+                size->cx += (target.right - target.left) -
+                            (source.right - source.left);
+                size->cy += (target.bottom - target.top) -
+                            (source.bottom - source.top);
+                return TRUE;
+            }
+
+            break;
+        }
+
         case WM_DPICHANGED:
         {
-            const float xscale = HIWORD(wParam) / 96.f;
-            const float yscale = LOWORD(wParam) / 96.f;
+            const float xscale = HIWORD(wParam) / (float) USER_DEFAULT_SCREEN_DPI;
+            const float yscale = LOWORD(wParam) / (float) USER_DEFAULT_SCREEN_DPI;
+
+            // Only apply the suggested size if the OS is new enough to have
+            // sent a WM_GETDPISCALEDSIZE before this
+            if (_glfwIsWindows10CreatorsUpdateOrGreaterWin32())
+            {
+                RECT* suggested = (RECT*) lParam;
+                SetWindowPos(window->win32.handle, HWND_TOP,
+                             suggested->left,
+                             suggested->top,
+                             suggested->right - suggested->left,
+                             suggested->bottom - suggested->top,
+                             SWP_NOACTIVATE | SWP_NOZORDER);
+            }
+
             _glfwInputWindowContentScale(window, xscale, yscale);
             break;
         }
@@ -1146,7 +1193,8 @@ static int createNativeWindow(_GLFWwindow* window,
 
         getFullWindowSize(style, exStyle,
                           wndconfig->width, wndconfig->height,
-                          &fullWidth, &fullHeight);
+                          &fullWidth, &fullHeight,
+                          USER_DEFAULT_SCREEN_DPI);
     }
 
     wideTitle = _glfwCreateWideStringFromUTF8Win32(wndconfig->title);
@@ -1185,6 +1233,40 @@ static int createNativeWindow(_GLFWwindow* window,
                                     WM_COPYGLOBALDATA, MSGFLT_ALLOW, NULL);
     }
 
+    window->win32.scaleToMonitor = wndconfig->scaleToMonitor;
+
+    // Adjust window size to account for DPI scaling of the window frame and
+    // optionally DPI scaling of the client area
+    // This cannot be done until we know what monitor it was placed on
+    if (!window->monitor)
+    {
+        RECT rect = { 0, 0, wndconfig->width, wndconfig->height };
+
+        if (wndconfig->scaleToMonitor)
+        {
+            float xscale, yscale;
+            _glfwPlatformGetWindowContentScale(window, &xscale, &yscale);
+            rect.right = (int) (rect.right * xscale);
+            rect.bottom = (int) (rect.bottom * yscale);
+        }
+
+        ClientToScreen(window->win32.handle, (POINT*) &rect.left);
+        ClientToScreen(window->win32.handle, (POINT*) &rect.right);
+
+        if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, style, FALSE, exStyle,
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+            AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+
+        SetWindowPos(window->win32.handle, NULL,
+                     rect.left, rect.top,
+                     rect.right - rect.left, rect.bottom - rect.top,
+                     SWP_NOACTIVATE | SWP_NOZORDER);
+    }
+
     DragAcceptFiles(window->win32.handle, TRUE);
 
     if (fbconfig->transparent)
@@ -1244,20 +1326,6 @@ void _glfwUnregisterWindowClassWin32(void)
     UnregisterClassW(_GLFW_WNDCLASSNAME, GetModuleHandleW(NULL));
 }
 
-// Returns whether desktop compositing is enabled
-//
-GLFWbool _glfwIsCompositionEnabledWin32(void)
-{
-    if (IsWindowsVistaOrGreater())
-    {
-        BOOL enabled;
-        if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)))
-            return enabled;
-    }
-
-    return FALSE;
-}
-
 
 //////////////////////////////////////////////////////////////////////////
 //////                       GLFW platform API                      //////
@@ -1395,8 +1463,19 @@ void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
 void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
 {
     RECT rect = { xpos, ypos, xpos, ypos };
-    AdjustWindowRectEx(&rect, getWindowStyle(window),
-                       FALSE, getWindowExStyle(window));
+
+    if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                 FALSE, getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+    {
+        AdjustWindowRectEx(&rect, getWindowStyle(window),
+                           FALSE, getWindowExStyle(window));
+    }
+
     SetWindowPos(window->win32.handle, NULL, rect.left, rect.top, 0, 0,
                  SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE);
 }
@@ -1425,8 +1504,19 @@ void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
     else
     {
         RECT rect = { 0, 0, width, height };
-        AdjustWindowRectEx(&rect, getWindowStyle(window),
-                           FALSE, getWindowExStyle(window));
+
+        if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                     FALSE, getWindowExStyle(window),
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+        {
+            AdjustWindowRectEx(&rect, getWindowStyle(window),
+                               FALSE, getWindowExStyle(window));
+        }
+
         SetWindowPos(window->win32.handle, HWND_TOP,
                      0, 0, rect.right - rect.left, rect.bottom - rect.top,
                      SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOMOVE | SWP_NOZORDER);
@@ -1481,8 +1571,18 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
 
     _glfwPlatformGetWindowSize(window, &width, &height);
     SetRect(&rect, 0, 0, width, height);
-    AdjustWindowRectEx(&rect, getWindowStyle(window),
-                       FALSE, getWindowExStyle(window));
+
+    if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                 FALSE, getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+    {
+        AdjustWindowRectEx(&rect, getWindowStyle(window),
+                           FALSE, getWindowExStyle(window));
+    }
 
     if (left)
         *left = -rect.left;
@@ -1563,8 +1663,19 @@ void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
         else
         {
             RECT rect = { xpos, ypos, xpos + width, ypos + height };
-            AdjustWindowRectEx(&rect, getWindowStyle(window),
-                               FALSE, getWindowExStyle(window));
+
+            if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+            {
+                AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         GetDpiForWindow(window->win32.handle));
+            }
+            else
+            {
+                AdjustWindowRectEx(&rect, getWindowStyle(window),
+                                   FALSE, getWindowExStyle(window));
+            }
+
             SetWindowPos(window->win32.handle, HWND_TOP,
                          rect.left, rect.top,
                          rect.right - rect.left, rect.bottom - rect.top,
@@ -1624,8 +1735,18 @@ void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
         else
             after = HWND_NOTOPMOST;
 
-        AdjustWindowRectEx(&rect, getWindowStyle(window),
-                           FALSE, getWindowExStyle(window));
+        if (_glfwIsWindows10AnniversaryUpdateOrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                     FALSE, getWindowExStyle(window),
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+        {
+            AdjustWindowRectEx(&rect, getWindowStyle(window),
+                               FALSE, getWindowExStyle(window));
+        }
+
         SetWindowPos(window->win32.handle, after,
                      rect.left, rect.top,
                      rect.right - rect.left, rect.bottom - rect.top,
@@ -1660,7 +1781,15 @@ int _glfwPlatformWindowHovered(_GLFWwindow* window)
 
 int _glfwPlatformFramebufferTransparent(_GLFWwindow* window)
 {
-    return window->win32.transparent && _glfwIsCompositionEnabledWin32();
+    BOOL enabled;
+
+    if (!window->win32.transparent)
+        return GLFW_FALSE;
+
+    if (!IsWindowsVistaOrGreater())
+        return GLFW_FALSE;
+
+    return SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled;
 }
 
 void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled)
@@ -1867,8 +1996,24 @@ int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
 
 int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
 {
-    cursor->win32.handle =
-        CopyCursor(LoadCursorW(NULL, translateCursorShape(shape)));
+    LPCWSTR name = NULL;
+
+    if (shape == GLFW_ARROW_CURSOR)
+        name = IDC_ARROW;
+    else if (shape == GLFW_IBEAM_CURSOR)
+        name = IDC_IBEAM;
+    else if (shape == GLFW_CROSSHAIR_CURSOR)
+        name = IDC_CROSS;
+    else if (shape == GLFW_HAND_CURSOR)
+        name = IDC_HAND;
+    else if (shape == GLFW_HRESIZE_CURSOR)
+        name = IDC_SIZEWE;
+    else if (shape == GLFW_VRESIZE_CURSOR)
+        name = IDC_SIZENS;
+    else
+        return GLFW_FALSE;
+
+    cursor->win32.handle = CopyCursor(LoadCursorW(NULL, name));
     if (!cursor->win32.handle)
     {
         _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,

glfw/window.c

@@ -393,6 +393,9 @@ GLFWAPI void glfwWindowHint(int hint, int value)
         case GLFW_COCOA_GRAPHICS_SWITCHING:
             _glfw.hints.context.nsgl.offline = value ? GLFW_TRUE : GLFW_FALSE;
             return;
+        case GLFW_SCALE_TO_MONITOR:
+            _glfw.hints.window.scaleToMonitor = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
         case GLFW_CENTER_CURSOR:
             _glfw.hints.window.centerCursor = value ? GLFW_TRUE : GLFW_FALSE;
             return;
@@ -457,6 +460,10 @@ GLFWAPI void glfwWindowHintString(int hint, const char* value)
             strncpy(_glfw.hints.window.x11.instanceName, value,
                     sizeof(_glfw.hints.window.x11.instanceName) - 1);
             return;
+        case GLFW_WAYLAND_APP_ID:
+            strncpy(_glfw.hints.window.wl.appId, value,
+                    sizeof(_glfw.hints.window.wl.appId) - 1);
+            return;
     }
 
     _glfwInputError(GLFW_INVALID_ENUM, "Invalid window hint string 0x%08X", hint);

glfw/wl_init.c

@@ -560,6 +560,9 @@ static void registryHandleGlobal(void* data,
                                  _glfw.wl.seatVersion);
             wl_seat_add_listener(_glfw.wl.seat, &seatListener, NULL);
         }
+        if (_glfw.wl.seat && _glfw.wl.dataDeviceManager && !_glfw.wl.dataDevice) {
+            _glfwSetupWaylandDataDevice();
+        }
     }
     else if (strcmp(interface, "xdg_wm_base") == 0)
     {
@@ -593,6 +596,17 @@ static void registryHandleGlobal(void* data,
                              &zwp_idle_inhibit_manager_v1_interface,
                              1);
     }
+    else if (strcmp(interface, "wl_data_device_manager") == 0)
+    {
+        _glfw.wl.dataDeviceManager =
+            wl_registry_bind(registry, name,
+                             &wl_data_device_manager_interface,
+                             1);
+        if (_glfw.wl.seat && _glfw.wl.dataDeviceManager && !_glfw.wl.dataDevice) {
+            _glfwSetupWaylandDataDevice();
+        }
+    }
+
 }
 
 static void registryHandleGlobalRemove(void *data,
@@ -761,6 +775,17 @@ void _glfwPlatformTerminate(void)
         zwp_pointer_constraints_v1_destroy(_glfw.wl.pointerConstraints);
     if (_glfw.wl.idleInhibitManager)
         zwp_idle_inhibit_manager_v1_destroy(_glfw.wl.idleInhibitManager);
+    if (_glfw.wl.dataSourceForClipboard)
+        wl_data_source_destroy(_glfw.wl.dataSourceForClipboard);
+    for (size_t doi=0; doi < arraysz(_glfw.wl.dataOffers); doi++) {
+        if (_glfw.wl.dataOffers[doi].id) {
+            wl_data_offer_destroy(_glfw.wl.dataOffers[doi].id);
+        }
+    }
+    if (_glfw.wl.dataDevice)
+        wl_data_device_destroy(_glfw.wl.dataDevice);
+    if (_glfw.wl.dataDeviceManager)
+        wl_data_device_manager_destroy(_glfw.wl.dataDeviceManager);
     if (_glfw.wl.registry)
         wl_registry_destroy(_glfw.wl.registry);
     if (_glfw.wl.display)
@@ -769,6 +794,9 @@ void _glfwPlatformTerminate(void)
         wl_display_disconnect(_glfw.wl.display);
     }
     closeFds(_glfw.wl.eventLoopData.wakeupFds, sizeof(_glfw.wl.eventLoopData.wakeupFds)/sizeof(_glfw.wl.eventLoopData.wakeupFds[0]));
+    free(_glfw.wl.clipboardString); _glfw.wl.clipboardString = NULL;
+    free(_glfw.wl.clipboardSourceString); _glfw.wl.clipboardSourceString = NULL;
+
 }
 
 const char* _glfwPlatformGetVersionString(void)

glfw/wl_platform.h

@@ -149,6 +149,7 @@ typedef struct _GLFWwindowWayland
     double                      cursorPosX, cursorPosY;
 
     char*                       title;
+    char                        appId[256];
 
     // We need to track the monitors the window spans on to calculate the
     // optimal scaling factor.
@@ -175,6 +176,19 @@ typedef struct _GLFWwindowWayland
 
 } _GLFWwindowWayland;
 
+typedef struct _GLFWWaylandDataOffer
+{
+    struct wl_data_offer *id;
+    const char *mime;
+    int offer_type;
+    size_t idx;
+    int is_self_offer;
+    int has_uri_list;
+    uint32_t source_actions;
+    uint32_t dnd_action;
+    struct wl_surface *surface;
+} _GLFWWaylandDataOffer;
+
 // Wayland-specific global data
 //
 typedef struct _GLFWlibraryWayland
@@ -193,6 +207,9 @@ typedef struct _GLFWlibraryWayland
     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;
 
     int                         compositorVersion;
     int                         seatVersion;
@@ -232,7 +249,11 @@ typedef struct _GLFWlibraryWayland
     } egl;
 
     EventLoopData eventLoopData;
-
+    char* clipboardString;
+    char* clipboardSourceString;
+    struct wl_data_offer* clipboardSourceOffer;
+    size_t dataOffersCounter;
+    _GLFWWaylandDataOffer dataOffers[8];
 } _GLFWlibraryWayland;
 
 // Wayland-specific per-monitor data
@@ -261,3 +282,4 @@ typedef struct _GLFWcursorWayland
 
 
 void _glfwAddOutputWayland(uint32_t name, uint32_t version);
+void _glfwSetupWaylandDataDevice();

glfw/wl_window.c

@@ -37,6 +37,18 @@
 #include <sys/mman.h>
 
 
+#define URI_LIST_MIME "text/uri-list"
+
+
+static const char*
+clipboard_mime() {
+    static char buf[128] = {0};
+    if (buf[0] == 0) {
+        snprintf(buf, sizeof(buf), "application/glfw+clipboard-%d", getpid());
+    }
+    return buf;
+}
+
 static void handlePing(void* data,
                        struct wl_shell_surface* shellSurface,
                        uint32_t serial)
@@ -681,6 +693,8 @@ static GLFWbool createXdgSurface(_GLFWwindow* window)
     {
         setIdleInhibitor(window, GLFW_FALSE);
     }
+    if (strlen(window->wl.appId))
+        xdg_toplevel_set_app_id(window->wl.xdg.toplevel, window->wl.appId);
 
     wl_surface_commit(window->wl.surface);
     wl_display_roundtrip(_glfw.wl.display);
@@ -757,6 +771,7 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
 {
     window->wl.justCreated = GLFW_TRUE;
     window->wl.transparent = fbconfig->transparent;
+    strncpy(window->wl.appId, wndconfig->wl.appId, sizeof(window->wl.appId));
 
     if (!createSurface(window, wndconfig))
         return GLFW_FALSE;
@@ -1435,18 +1450,330 @@ void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
     }
 }
 
+static void _glfwSendClipboardText(void *data, struct wl_data_source *data_source, const char *mime_type, int fd)
+{
+    if (_glfw.wl.clipboardString) {
+        size_t len = strlen(_glfw.wl.clipboardString), pos = 0;
+        double start = glfwGetTime();
+        while (pos < len && glfwGetTime() - start < 2.0) {
+            ssize_t ret = write(fd, _glfw.wl.clipboardString + pos, len - pos);
+            if (ret < 0) {
+                if (errno == EAGAIN || errno == EINTR) continue;
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "Wayland: Could not copy writing to destination fd failed with error: %s", strerror(errno));
+                break;
+            }
+            if (ret > 0) {
+                start = glfwGetTime();
+                pos += ret;
+            }
+        }
+    }
+    close(fd);
+}
+
+static char* read_data_offer(struct wl_data_offer *data_offer, const char *mime) {
+    int pipefd[2];
+    if (pipe2(pipefd, O_CLOEXEC) != 0) return NULL;
+    wl_data_offer_receive(data_offer, mime, pipefd[1]);
+    close(pipefd[1]);
+    wl_display_flush(_glfw.wl.display);
+    size_t sz = 0, capacity = 0;
+    char *buf = NULL;
+    struct pollfd fds;
+    fds.fd = pipefd[0];
+    fds.events = POLLIN;
+    double start = glfwGetTime();
+#define bail(...) { \
+    _glfwInputError(GLFW_PLATFORM_ERROR, __VA_ARGS__); \
+    free(buf); buf = NULL; \
+    close(pipefd[0]); \
+    return NULL; \
+}
+
+    while (glfwGetTime() - start < 2) {
+        int ret = poll(&fds, 1, 2000);
+        if (ret == -1) {
+            if (errno == EINTR) continue;
+            bail("Wayland: Failed to poll clipboard data from pipe with error: %s", strerror(errno));
+        }
+        if (!ret) {
+            bail("Wayland: Failed to read clipboard data from pipe (timed out)");
+        }
+        if (capacity <= sz || capacity - sz <= 64) {
+            capacity += 4096;
+            buf = realloc(buf, capacity);
+            if (!buf) {
+                bail("Wayland: Failed to allocate memory to read clipboard data");
+            }
+        }
+        ret = read(pipefd[0], buf + sz, capacity - sz - 1);
+        if (ret == -1) {
+            if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK) continue;
+            bail("Wayland: Failed to read clipboard data from pipe with error: %s", strerror(errno));
+        }
+        if (ret == 0) { close(pipefd[0]); buf[sz] = 0; return buf; }
+        sz += ret;
+        start = glfwGetTime();
+    }
+    bail("Wayland: Failed to read clipboard data from pipe (timed out)");
+#undef bail
+
+}
+
+static const char* _glfwReceiveClipboardText(struct wl_data_offer *data_offer, const char *mime)
+{
+    if (_glfw.wl.clipboardSourceOffer == data_offer && _glfw.wl.clipboardSourceString)
+        return _glfw.wl.clipboardSourceString;
+    free(_glfw.wl.clipboardSourceString);
+    _glfw.wl.clipboardSourceString = read_data_offer(data_offer, mime);
+    return _glfw.wl.clipboardSourceString;
+}
+
+static void data_source_canceled(void *data, struct wl_data_source *wl_data_source) {
+    if (_glfw.wl.dataSourceForClipboard == wl_data_source)
+        _glfw.wl.dataSourceForClipboard = NULL;
+    wl_data_source_destroy(wl_data_source);
+}
+
+static void data_source_target(void *data, struct wl_data_source *wl_data_source, const char* mime) {
+}
+
+const static struct wl_data_source_listener data_source_listener = {
+    .send = _glfwSendClipboardText,
+    .cancelled = data_source_canceled,
+    .target = data_source_target,
+};
+
+static void prune_unclaimed_data_offers() {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id && !_glfw.wl.dataOffers[i].offer_type) {
+            wl_data_offer_destroy(_glfw.wl.dataOffers[i].id);
+            memset(_glfw.wl.dataOffers + i, 0, sizeof(_glfw.wl.dataOffers[0]));
+        }
+    }
+}
+
+static void mark_selection_offer(void *data, struct wl_data_device *data_device, struct wl_data_offer *data_offer)
+{
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id == data_offer) {
+            _glfw.wl.dataOffers[i].offer_type = 1;
+        } else if (_glfw.wl.dataOffers[i].offer_type == 1) {
+            _glfw.wl.dataOffers[i].offer_type = 0;  // previous selection offer
+        }
+    }
+    prune_unclaimed_data_offers();
+}
+
+static void handle_offer_mimetype(void *data, struct wl_data_offer* id, const char *mime) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id == id) {
+            if (strcmp(mime, "text/plain;charset=utf-8") == 0)
+                _glfw.wl.dataOffers[i].mime = "text/plain;charset=utf-8";
+            else if (!_glfw.wl.dataOffers[i].mime && strcmp(mime, "text/plain") == 0)
+                _glfw.wl.dataOffers[i].mime = "text/plain";
+            else if (strcmp(mime, clipboard_mime()) == 0)
+                _glfw.wl.dataOffers[i].is_self_offer = 1;
+            else if (strcmp(mime, URI_LIST_MIME) == 0)
+                _glfw.wl.dataOffers[i].has_uri_list = 1;
+            break;
+        }
+    }
+}
+
+static void data_offer_source_actions(void *data, struct wl_data_offer* id, uint32_t actions) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id == id) {
+            _glfw.wl.dataOffers[i].source_actions = actions;
+            break;
+        }
+    }
+}
+
+static void data_offer_action(void *data, struct wl_data_offer* id, uint32_t action) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id == id) {
+            _glfw.wl.dataOffers[i].dnd_action = action;
+            break;
+        }
+    }
+}
+
+
+static const struct wl_data_offer_listener data_offer_listener = {
+    .offer = handle_offer_mimetype,
+    .source_actions = data_offer_source_actions,
+    .action = data_offer_action,
+};
+
+static void handle_data_offer(void *data, struct wl_data_device *wl_data_device, struct wl_data_offer *id) {
+    size_t smallest_idx = SIZE_MAX, pos = 0;
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].idx && _glfw.wl.dataOffers[i].idx < smallest_idx) {
+            smallest_idx = _glfw.wl.dataOffers[i].idx;
+            pos = i;
+        }
+        if (_glfw.wl.dataOffers[i].id == NULL) {
+            _glfw.wl.dataOffers[i].id = id;
+            _glfw.wl.dataOffers[i].idx = ++_glfw.wl.dataOffersCounter;
+            goto end;
+        }
+    }
+    if (_glfw.wl.dataOffers[pos].id) wl_data_offer_destroy(_glfw.wl.dataOffers[pos].id);
+    memset(_glfw.wl.dataOffers + pos, 0, sizeof(_glfw.wl.dataOffers[0]));
+    _glfw.wl.dataOffers[pos].id = id;
+    _glfw.wl.dataOffers[pos].idx = ++_glfw.wl.dataOffersCounter;
+end:
+    wl_data_offer_add_listener(id, &data_offer_listener, NULL);
+}
+
+static void drag_enter(void *data, struct wl_data_device *wl_data_device, uint32_t serial, struct wl_surface *surface, wl_fixed_t x, wl_fixed_t y, struct wl_data_offer *id) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id == id) {
+            _glfw.wl.dataOffers[i].offer_type = 2;
+            _glfw.wl.dataOffers[i].surface = surface;
+            const char *mime = _glfw.wl.dataOffers[i].has_uri_list ? URI_LIST_MIME : NULL;
+            wl_data_offer_accept(id, serial, mime);
+        } else if (_glfw.wl.dataOffers[i].offer_type == 2) {
+            _glfw.wl.dataOffers[i].offer_type = 0;  // previous drag offer
+        }
+    }
+    prune_unclaimed_data_offers();
+}
+
+static void drag_leave(void *data, struct wl_data_device *wl_data_device) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].offer_type == 2) {
+            wl_data_offer_destroy(_glfw.wl.dataOffers[i].id);
+            memset(_glfw.wl.dataOffers + i, 0, sizeof(_glfw.wl.dataOffers[0]));
+        }
+    }
+}
+
+
+
+static void drop(void *data, struct wl_data_device *wl_data_device) {
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].offer_type == 2) {
+            char *uri_list = read_data_offer(_glfw.wl.dataOffers[i].id, URI_LIST_MIME);
+            if (uri_list) {
+                wl_data_offer_finish(_glfw.wl.dataOffers[i].id);
+                int count;
+                char** paths = parseUriList(data, &count);
+
+                _GLFWwindow* window = _glfw.windowListHead;
+                while (window)
+                {
+                    if (window->wl.surface == _glfw.wl.dataOffers[i].surface) {
+                        _glfwInputDrop(window, count, (const char**) paths);
+                        break;
+                    }
+                    window = window->next;
+                }
+
+
+                for (int k = 0;  k < count;  k++)
+                    free(paths[k]);
+                free(paths);
+                free(uri_list);
+            }
+            wl_data_offer_destroy(_glfw.wl.dataOffers[i].id);
+            memset(_glfw.wl.dataOffers + i, 0, sizeof(_glfw.wl.dataOffers[0]));
+            break;
+        }
+    }
+}
+
+static void motion(void *data, struct wl_data_device *wl_data_device, uint32_t time, wl_fixed_t x, wl_fixed_t y) {
+}
+
+const static struct wl_data_device_listener data_device_listener = {
+    .data_offer = handle_data_offer,
+    .selection = mark_selection_offer,
+    .enter = drag_enter,
+    .motion = motion,
+    .drop = drop,
+    .leave = drag_leave,
+};
+
+
+static void
+copy_callback_done(void *data, struct wl_callback *callback, uint32_t serial) {
+    if (!_glfw.wl.dataDevice) return;
+    if (data == (void*)_glfw.wl.dataSourceForClipboard) {
+        wl_data_device_set_selection(_glfw.wl.dataDevice, data, serial);
+    }
+}
+
+const static struct wl_callback_listener copy_callback_listener = {
+    .done = copy_callback_done
+};
+
+void _glfwSetupWaylandDataDevice() {
+    _glfw.wl.dataDevice = wl_data_device_manager_get_data_device(_glfw.wl.dataDeviceManager, _glfw.wl.seat);
+    if (_glfw.wl.dataDevice) wl_data_device_add_listener(_glfw.wl.dataDevice, &data_device_listener, NULL);
+}
+
+static inline GLFWbool _glfwEnsureDataDevice() {
+    if (!_glfw.wl.dataDeviceManager)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Cannot use clipboard, data device manager is not ready");
+        return GLFW_FALSE;
+    }
+
+    if (!_glfw.wl.dataDevice)
+    {
+        if (!_glfw.wl.seat)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Cannot use clipboard, seat is not ready");
+            return GLFW_FALSE;
+        }
+        if (!_glfw.wl.dataDevice)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "Wayland: Cannot use clipboard, failed to create data device");
+            return GLFW_FALSE;
+        }
+    }
+    return GLFW_TRUE;
+}
+
 void _glfwPlatformSetClipboardString(const char* string)
 {
-    // TODO
-    _glfwInputError(GLFW_PLATFORM_ERROR,
-                    "Wayland: Clipboard setting not implemented yet");
+    if (!_glfwEnsureDataDevice()) return;
+    free(_glfw.wl.clipboardString);
+    _glfw.wl.clipboardString = _glfw_strdup(string);
+    if (_glfw.wl.dataSourceForClipboard)
+        wl_data_source_destroy(_glfw.wl.dataSourceForClipboard);
+    _glfw.wl.dataSourceForClipboard = wl_data_device_manager_create_data_source(_glfw.wl.dataDeviceManager);
+    if (!_glfw.wl.dataSourceForClipboard)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Cannot copy failed to create data source");
+        return;
+    }
+    wl_data_source_add_listener(_glfw.wl.dataSourceForClipboard, &data_source_listener, NULL);
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, clipboard_mime());
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, "text/plain");
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, "text/plain;charset=utf-8");
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, "TEXT");
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, "STRING");
+    wl_data_source_offer(_glfw.wl.dataSourceForClipboard, "UTF8_STRING");
+    struct wl_callback *callback = wl_display_sync(_glfw.wl.display);
+    wl_callback_add_listener(callback, &copy_callback_listener, _glfw.wl.dataSourceForClipboard);
 }
 
 const char* _glfwPlatformGetClipboardString(void)
 {
-    // TODO
-    _glfwInputError(GLFW_PLATFORM_ERROR,
-                    "Wayland: Clipboard getting not implemented yet");
+    for (size_t i = 0; i < arraysz(_glfw.wl.dataOffers); i++) {
+        if (_glfw.wl.dataOffers[i].id && _glfw.wl.dataOffers[i].mime && _glfw.wl.dataOffers[i].offer_type == 1) {
+            if (_glfw.wl.dataOffers[i].is_self_offer) return _glfw.wl.clipboardString;
+            return _glfwReceiveClipboardText(_glfw.wl.dataOffers[i].id, _glfw.wl.dataOffers[i].mime);
+        }
+    }
     return NULL;
 }
 

glfw/x11_window.c

@@ -161,29 +161,6 @@ static Bool isSelPropNewValueNotify(Display* display, XEvent* event, XPointer po
            event->xproperty.atom == notification->xselection.property;
 }
 
-// Translates a GLFW standard cursor to a font cursor shape
-//
-static int translateCursorShape(int shape)
-{
-    switch (shape)
-    {
-        case GLFW_ARROW_CURSOR:
-            return XC_left_ptr;
-        case GLFW_IBEAM_CURSOR:
-            return XC_xterm;
-        case GLFW_CROSSHAIR_CURSOR:
-            return XC_crosshair;
-        case GLFW_HAND_CURSOR:
-            return XC_hand1;
-        case GLFW_HRESIZE_CURSOR:
-            return XC_sb_h_double_arrow;
-        case GLFW_VRESIZE_CURSOR:
-            return XC_sb_v_double_arrow;
-    }
-
-    return 0;
-}
-
 // Translates an X event modifier state mask
 //
 static int translateState(int state)
@@ -206,23 +183,6 @@ static int translateState(int state)
     return mods;
 }
 
-// Return the GLFW window corresponding to the specified X11 window
-//
-static _GLFWwindow* findWindowByHandle(Window handle)
-{
-    _GLFWwindow* window;
-
-    if (XFindContext(_glfw.x11.display,
-                     handle,
-                     _glfw.x11.context,
-                     (XPointer*) &window) != 0)
-    {
-        return NULL;
-    }
-
-    return window;
-}
-
 // Sends an EWMH or ICCCM event to the window manager
 //
 static void sendEventToWM(_GLFWwindow* window, Atom type,
@@ -390,56 +350,6 @@ static void updateWindowMode(_GLFWwindow* window)
     }
 }
 
-// Splits and translates a text/uri-list into separate file paths
-// NOTE: This function destroys the provided string
-//
-static char** parseUriList(char* text, int* count)
-{
-    const char* prefix = "file://";
-    char** paths = NULL;
-    char* line;
-
-    *count = 0;
-
-    while ((line = strtok(text, "\r\n")))
-    {
-        text = NULL;
-
-        if (line[0] == '#')
-            continue;
-
-        if (strncmp(line, prefix, strlen(prefix)) == 0)
-        {
-            line += strlen(prefix);
-            // TODO: Validate hostname
-            while (*line != '/')
-                line++;
-        }
-
-        (*count)++;
-
-        char* path = calloc(strlen(line) + 1, 1);
-        paths = realloc(paths, *count * sizeof(char*));
-        paths[*count - 1] = path;
-
-        while (*line)
-        {
-            if (line[0] == '%' && line[1] && line[2])
-            {
-                const char digits[3] = { line[1], line[2], '\0' };
-                *path = strtol(digits, NULL, 16);
-                line += 2;
-            }
-            else
-                *path = *line;
-
-            path++;
-            line++;
-        }
-    }
-
-    return paths;
-}
 
 // Encode a Unicode code point to a UTF-8 stream
 // Based on cutef8 by Jeff Bezanson (Public Domain)
@@ -582,6 +492,15 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
                                    const _GLFWwndconfig* wndconfig,
                                    Visual* visual, int depth)
 {
+    int width = wndconfig->width;
+    int height = wndconfig->height;
+
+    if (wndconfig->scaleToMonitor)
+    {
+        width *= _glfw.x11.contentScaleX;
+        height *= _glfw.x11.contentScaleY;
+    }
+
     // Create a colormap based on the visual used by the current context
     window->x11.colormap = XCreateColormap(_glfw.x11.display,
                                            _glfw.x11.root,
@@ -607,7 +526,7 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
         window->x11.handle = XCreateWindow(_glfw.x11.display,
                                            _glfw.x11.root,
                                            0, 0,
-                                           wndconfig->width, wndconfig->height,
+                                           width, height,
                                            0,      // Border width
                                            depth,  // Color depth
                                            InputOutput,
@@ -710,7 +629,7 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
         XFree(hints);
     }
 
-    updateNormalHints(window, wndconfig->width, wndconfig->height);
+    updateNormalHints(window, width, height);
 
     // Set ICCCM WM_CLASS property
     {
@@ -1243,8 +1162,10 @@ static void processEvent(XEvent *event)
         return;
     }
 
-    window = findWindowByHandle(event->xany.window);
-    if (window == NULL)
+    if (XFindContext(_glfw.x11.display,
+                     event->xany.window,
+                     _glfw.x11.context,
+                     (XPointer*) &window) != 0)
     {
         // This is an event for a window that has already been destroyed
         return;
@@ -2680,8 +2601,24 @@ int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
 
 int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
 {
-    cursor->x11.handle = XCreateFontCursor(_glfw.x11.display,
-                                           translateCursorShape(shape));
+    int native = 0;
+
+    if (shape == GLFW_ARROW_CURSOR)
+        native = XC_left_ptr;
+    else if (shape == GLFW_IBEAM_CURSOR)
+        native = XC_xterm;
+    else if (shape == GLFW_CROSSHAIR_CURSOR)
+        native = XC_crosshair;
+    else if (shape == GLFW_HAND_CURSOR)
+        native = XC_hand1;
+    else if (shape == GLFW_HRESIZE_CURSOR)
+        native = XC_sb_h_double_arrow;
+    else if (shape == GLFW_VRESIZE_CURSOR)
+        native = XC_sb_v_double_arrow;
+    else
+        return GLFW_FALSE;
+
+    cursor->x11.handle = XCreateFontCursor(_glfw.x11.display, native);
     if (!cursor->x11.handle)
     {
         _glfwInputError(GLFW_PLATFORM_ERROR,

glfw/xkb_glfw.c

@@ -33,7 +33,7 @@
 #define debug(...) if (_glfw.hints.init.debugKeyboard) printf(__VA_ARGS__);
 
 
-#define map_key(key) { \
+#define map_key(key) \
     switch(key) { \
         S(space, SPACE); \
         S(apostrophe, APOSTROPHE); \
@@ -93,10 +93,6 @@
         D(A, Z, A, Z); \
         R(F1, F25, F1, F25); \
         R(KP_0, KP_9, KP_0, KP_9); \
-        default: \
-            break; \
-    } \
-}
 
 static int
 glfw_key_for_sym(xkb_keysym_t key) {
@@ -105,6 +101,13 @@ glfw_key_for_sym(xkb_keysym_t key) {
 #define R(s, e, gs, ...) case XKB_KEY_##s ... XKB_KEY_##e: return GLFW_KEY_##gs + key - XKB_KEY_##s
 #define D(s, e, gs, ...) R(s, e, gs)
     map_key(key)
+        S(KP_Up, UP);
+        S(KP_Down, DOWN);
+        S(KP_Left, LEFT);
+        S(KP_Right, RIGHT);
+        default:
+            break;
+    }
     return GLFW_KEY_UNKNOWN;
 #undef F
 #undef D
@@ -119,6 +122,9 @@ glfw_xkb_sym_for_key(int key) {
 #define R(s, e, gs, ge) case GLFW_KEY_##gs ... GLFW_KEY_##ge: return XKB_KEY_##s + key - GLFW_KEY_##gs
 #define D(...)
     map_key(key)
+    default:
+        break;
+    }
     return GLFW_KEY_UNKNOWN;
 #undef F
 #undef D
@@ -329,12 +335,14 @@ glfw_xkb_should_repeat(_GLFWXKBData *xkb, xkb_keycode_t scancode) {
 static KeyEvent key_event = {};
 
 static inline xkb_keysym_t
-compose_symbol(struct xkb_compose_state *composeState, xkb_keysym_t sym) {
+compose_symbol(struct xkb_compose_state *composeState, xkb_keysym_t sym, int *compose_completed) {
+    *compose_completed = 0;
     if (sym == XKB_KEY_NoSymbol || !composeState) return sym;
     if (xkb_compose_state_feed(composeState, sym) != XKB_COMPOSE_FEED_ACCEPTED) return sym;
     switch (xkb_compose_state_get_status(composeState)) {
         case XKB_COMPOSE_COMPOSED:
             xkb_compose_state_get_utf8(composeState, key_event.text, sizeof(key_event.text));
+            *compose_completed = 1;
             return xkb_compose_state_get_one_sym(composeState);
         case XKB_COMPOSE_COMPOSING:
         case XKB_COMPOSE_CANCELLED:
@@ -465,8 +473,9 @@ glfw_xkb_handle_key_event(_GLFWwindow *window, _GLFWXKBData *xkb, xkb_keycode_t
     debug("clean_sym: %s ", glfw_xkb_keysym_name(clean_syms[0]));
     if (action == GLFW_PRESS || action == GLFW_REPEAT) {
         const char *text_type = "composed_text";
-        glfw_sym = compose_symbol(sg->composeState, syms[0]);
-        if (glfw_sym == XKB_KEY_NoSymbol) {
+        int compose_completed;
+        glfw_sym = compose_symbol(sg->composeState, syms[0], &compose_completed);
+        if (glfw_sym == XKB_KEY_NoSymbol && !compose_completed) {
             debug("compose not complete, ignoring.\n");
             return;
         }

kittens/diff/main.py

@@ -32,7 +32,7 @@ from .search import BadRegex, Search
 try:
     from .highlight import initialize_highlighter, highlight_collection
 except ImportError:
-    initialize_highlighter = None
+    initialize_highlighter = highlight_collection = None
 
 
 INITIALIZING, COLLECTED, DIFFED, COMMAND, MESSAGE = range(5)

kittens/icat/main.py

@@ -34,9 +34,9 @@ Horizontal alignment for the displayed image.
 --place
 Choose where on the screen to display the image. The image will
 be scaled to fit into the specified rectangle. The syntax for
-specifying rectanges is <:italic:`width`>x<:italic:`height`>@<:italic:`left`>x<:italic:`top`>. All measurements
-are in cells (i.e. cursor positions) with the origin :italic:`(0, 0)` at
-the top-left corner of the screen.
+specifying rectangles is <:italic:`width`>x<:italic:`height`>@<:italic:`left`>x<:italic:`top`>.
+All measurements are in cells (i.e. cursor positions) with the
+origin :italic:`(0, 0)` at the top-left corner of the screen.
 
 
 --scale-up

kittens/resize_window/main.py

@@ -43,7 +43,7 @@ class Resize(Handler):
         cmdline = [resize_window.name, '--self', '--increment={}'.format(increment), '--axis=' + axis]
         opts, items = parse_subcommand_cli(resize_window, cmdline)
         payload = resize_window(global_opts, opts, items)
-        send = {'cmd': resize_window.name, 'version': version, 'payload': payload}
+        send = {'cmd': resize_window.name, 'version': version, 'payload': payload, 'no_response': False}
         self.write(encode_send(send))
 
     def on_kitty_cmd_response(self, response):

kitty/boss.py

@@ -103,6 +103,8 @@ class Boss:
         if new_os_window_trigger is not None:
             self.keymap.pop(new_os_window_trigger, None)
         self.add_os_window(startup_session, os_window_id=os_window_id)
+        if args.start_in_fullscreen:
+            self.toggle_fullscreen()
 
     def add_os_window(self, startup_session, os_window_id=None, wclass=None, wname=None, opts_for_size=None, startup_id=None):
         if os_window_id is None:

kitty/cell_fragment.glsl

@@ -64,7 +64,7 @@ vec4 calculate_foreground() {
     // Since strike and text are the same color, we simply add the alpha values
     float combined_alpha = min(text_alpha + strike_alpha, 1.0f);
     // Underline color might be different, so alpha blend
-    vec4 ans = alpha_blend(decoration_fg, underline_alpha * effective_text_alpha, fg, combined_alpha * effective_text_alpha);
+    vec4 ans = alpha_blend(fg, combined_alpha * effective_text_alpha, decoration_fg, underline_alpha * effective_text_alpha);
     return mix(ans, cursor_color_vec, cursor_alpha);
 }
 #endif

kitty/child.c

@@ -16,6 +16,7 @@
 static inline char**
 serialize_string_tuple(PyObject *src) {
     Py_ssize_t sz = PyTuple_GET_SIZE(src);
+
     char **ans = calloc(sz + 1, sizeof(char*));
     if (!ans) fatal("Out of memory");
     for (Py_ssize_t i = 0; i < sz; i++) {
@@ -28,6 +29,13 @@ serialize_string_tuple(PyObject *src) {
     return ans;
 }
 
+static inline void
+free_string_tuple(char** data) {
+    size_t i = 0;
+	while(data[i]) free(data[i++]);
+	free(data);
+}
+
 extern char **environ;
 
 static inline void
@@ -125,8 +133,8 @@ spawn(PyObject *self UNUSED, PyObject *args) {
             break;
     }
 #undef exit_on_err
-    free(argv);
-    free(env);
+    free_string_tuple(argv);
+    free_string_tuple(env);
     if (PyErr_Occurred()) return NULL;
     return PyLong_FromLong(pid);
 }

kitty/cli.py

@@ -464,7 +464,7 @@ def options_spec():
 dest=cls
 default={appname}
 condition=not is_macos
-Set the class part of the :italic:`WM_CLASS` window property
+Set the class part of the :italic:`WM_CLASS` window property. On Wayland, it sets the app id.
 
 
 --name
@@ -546,6 +546,11 @@ specify this address. This option will be ignored, unless you set
 option as it is read automatically from the environment.
 
 
+--start-in-fullscreen
+type=bool-set
+Make the initial kitty window fullscreen on startup
+
+
 # Debugging options
 
 --version -v

kitty/cmds.py

@@ -32,6 +32,9 @@ class UnknownLayout(ValueError):
     hide_traceback = True
 
 
+cmap = {}
+
+
 def cmd(short_desc, desc=None, options_spec=None, no_response=False, argspec='...', string_return_is_error=False, args_count=None):
 
     def w(func):
@@ -45,6 +48,7 @@ def cmd(short_desc, desc=None, options_spec=None, no_response=False, argspec='..
         func.no_response = no_response
         func.string_return_is_error = string_return_is_error
         func.args_count = 0 if not argspec else args_count
+        cmap[func.name] = func
         return func
     return w
 
@@ -363,7 +367,7 @@ reset the layout to its default configuration.
 
 --self
 type=bool-set
-If specified close the window this command is run in, rather than the active window.
+If specified resize the window this command is run in, rather than the active window.
 ''',
     argspec='',
     string_return_is_error=True
@@ -787,9 +791,6 @@ def kitten(boss, window, payload):
 # }}}
 
 
-cmap = {v.name: v for v in globals().values() if hasattr(v, 'is_cmd')}
-
-
 def cli_params_for(func):
     return (func.options_spec or '\n').format, func.argspec, func.desc, '{} @ {}'.format(appname, func.name)
 

kitty/complete.py

@@ -35,7 +35,7 @@ completion_scripts = {
     'zsh': '''
 _kitty() {
     local src
-    # Send all words upto the word the cursor is currently on
+    # Send all words up to the word the cursor is currently on
     src=$(printf "%s\n" "${(@)words[1,$CURRENT]}" | kitty +complete zsh)
     if [[ $? == 0 ]]; then
         eval ${src}
@@ -56,6 +56,14 @@ kitty_completions() {
 }
 
 complete -o nospace -F kitty_completions kitty
+''',
+    'fish': '''
+function __kitty_completions
+    # Send all words up to the one before the cursor
+    commandline -cop | kitty +complete fish
+end
+
+complete -f -c kitty -a "(__kitty_completions)"
 ''',
 }
 
@@ -86,6 +94,11 @@ def bash_input_parser(data):
     return words, new_word
 
 
+@input_parser
+def fish_input_parser(data):
+    return data.rstrip().splitlines(), True
+
+
 @output_serializer
 def zsh_output_serializer(ans):
     lines = []
@@ -95,6 +108,10 @@ def zsh_output_serializer(ans):
             cmd += ['-S', '""']
         if description in ans.files_groups:
             cmd.append('-f')
+            common_prefix = os.path.commonprefix(tuple(matches))
+            if common_prefix:
+                cmd.extend(('-p', shlex.quote(common_prefix)))
+                matches = {k[len(common_prefix):]: v for k, v in matches.items()}
         cmd.append('--')
         for word, description in matches.items():
             cmd.append(shlex.quote(word))
@@ -117,6 +134,16 @@ def bash_output_serializer(ans):
 # }}}
 
 
+@output_serializer
+def fish_output_serializer(ans):
+    lines = []
+    for matches in ans.match_groups.values():
+        for word in matches:
+            lines.append(shlex.quote(word))
+    # debug('\n'.join(lines))
+    return '\n'.join(lines)
+
+
 def completions_for_first_word(ans, prefix, entry_points, namespaced_entry_points):
     cmds = ['@' + c for c in cmap]
     ans.match_groups['Entry points'] = {
@@ -197,21 +224,40 @@ def complete_remote_command(ans, cmd_name, words, new_word):
     complete_alias_map(ans, words, new_word, alias_map)
 
 
-def complete_files_and_dirs(ans, prefix, files_group_name='Files', predicate=lambda filename: True):
+def path_completion(prefix=''):
+    prefix = prefix.replace(r'\ ', ' ')
     dirs, files = [], []
     base = '.'
     if prefix.endswith('/'):
         base = prefix
     elif '/' in prefix:
         base = os.path.dirname(prefix)
-    for x in os.scandir(base):
-        q = os.path.relpath(x.path)
-        if x.is_dir():
-            if q.startswith(prefix):
-                dirs.append(q.rstrip(os.sep) + os.sep)
+    src = os.path.expandvars(os.path.expanduser(base))
+    src_prefix = os.path.abspath(os.path.expandvars(os.path.expanduser(prefix))) if prefix else ''
+    try:
+        items = os.scandir(src)
+    except FileNotFoundError:
+        items = ()
+    for x in items:
+        abspath = os.path.abspath(x.path)
+        if prefix and not abspath.startswith(src_prefix):
+            continue
+        if prefix:
+            q = prefix + abspath[len(src_prefix):].lstrip(os.sep)
+            q = os.path.expandvars(os.path.expanduser(q))
         else:
-            if q.startswith(prefix) and predicate(q):
-                files.append(q)
+            q = os.path.relpath(abspath)
+        if x.is_dir():
+            dirs.append(q.rstrip(os.sep) + os.sep)
+        else:
+            files.append(q)
+    return dirs, files
+
+
+def complete_files_and_dirs(ans, prefix, files_group_name='Files', predicate=None):
+    dirs, files = path_completion(prefix or '')
+    files = filter(predicate, files)
+
     if dirs:
         ans.match_groups['Directories'] = dict.fromkeys(dirs)
         ans.files_groups.add('Directories'), ans.no_space_groups.add('Directories')
@@ -232,6 +278,17 @@ def complete_icat_args(ans, opt, prefix):
         complete_files_and_dirs(ans, prefix, 'Images', icat_file_predicate)
 
 
+def config_file_predicate(filename):
+    return filename.endswith('.conf')
+
+
+def complete_diff_args(ans, opt, prefix):
+    if opt is None:
+        complete_files_and_dirs(ans, prefix, 'Files')
+    elif opt['dest'] == 'config':
+        complete_files_and_dirs(ans, prefix, 'Config Files', config_file_predicate)
+
+
 def complete_kitten(ans, kitten, words, new_word):
     try:
         cd = get_kitten_cli_docs(kitten)
@@ -247,7 +304,8 @@ def complete_kitten(ans, kitten, words, new_word):
             for alias in opt['aliases']:
                 option_map[alias] = opt
     complete_alias_map(ans, words, new_word, option_map, {
-        'icat': complete_icat_args
+        'icat': complete_icat_args,
+        'diff': complete_diff_args,
     }.get(kitten))
 
 

kitty/config.py

@@ -35,14 +35,22 @@ named_keys = {
 
 def parse_shortcut(sc):
     parts = sc.split('+')
-    mods = parse_mods(parts[:-1], sc)
-    if mods is None:
-        return None, None, None
+    mods = 0
+    if len(parts) > 1:
+        mods = parse_mods(parts[:-1], sc)
+        if mods is None:
+            return None, None, None
     key = parts[-1].upper()
     key = getattr(defines, 'GLFW_KEY_' + named_keys.get(key, key), None)
     is_native = False
     if key is None:
-        key = defines.key_for_native_key_name(parts[-1])
+        if parts[-1].startswith('0x'):
+            try:
+                key = int(parts[-1], 16)
+            except Exception:
+                pass
+        else:
+            key = defines.key_for_native_key_name(parts[-1])
         is_native = key is not None
     return mods, is_native, key
 

kitty/config_data.py

@@ -95,6 +95,21 @@ for a list of key names. The name to use is the part after the :code:`XKB_KEY_`
 prefix. Note that you should only use an XKB key name for keys that are not present
 in the list of GLFW keys.
 
+Finally, you can use raw system key codes to map keys. To see the system key code
+for a key, start kitty with the :option:`kitty --debug-keyboard` option. Then kitty will
+output some debug text for every key event. In that text look for ``native_code``
+the value of that becomes the key name in the shortcut. For example:
+
+.. code-block:: none
+
+    on_key_input: glfw key: 65 native_code: 0x61 action: PRESS mods: 0x0 text: 'a'
+
+Here, the key name for the :kbd:`A` key is :kbd:`0x61` and you can use it with::
+
+    map ctrl+0x61 something
+
+to map :kbd:`ctrl+a` to something.
+
 You can use the special action :code:`no_op` to unmap a keyboard shortcut that is
 assigned in the default configuration.
 
@@ -290,9 +305,19 @@ o('cursor_stop_blinking_after', 15.0, option_type=positive_float)
 
 g('scrollback')  # {{{
 
-o('scrollback_lines', 2000, option_type=positive_int, long_text=_('''
+
+def scrollback_lines(x):
+    x = int(x)
+    if x < 0:
+        x = 2 ** 32 - 1
+    return x
+
+
+o('scrollback_lines', 2000, option_type=scrollback_lines, long_text=_('''
 Number of lines of history to keep in memory for scrolling back. Memory is allocated
-on demand.'''))
+on demand. Negative numbers are (effectively) infinite scrollback. Note that using
+very large scrollback is not recommended a it can slow down resizing of the terminal
+and also use large amounts of RAM.'''))
 
 o('scrollback_pager', 'less --chop-long-lines --RAW-CONTROL-CHARS +INPUT_LINE_NUMBER', option_type=to_cmdline, long_text=_('''
 Program with which to view scrollback in a new window. The scrollback buffer is
@@ -850,6 +875,8 @@ g('shortcuts.tab')  # {{{
 if is_macos:
     k('next_tab', 'ctrl+tab', 'next_tab', _('Next tab'))
 k('next_tab', 'kitty_mod+right', 'next_tab', _('Next tab'))
+if is_macos:
+    k('previous_tab', 'ctrl+shift+tab', 'previous_tab', _('Previous tab'))
 k('previous_tab', 'kitty_mod+left', 'previous_tab', _('Previous tab'))
 k('new_tab', 'kitty_mod+t', 'new_tab', _('New tab'))
 k('close_tab', 'kitty_mod+q', 'close_tab', _('Close tab'))

kitty/constants.py

@@ -9,7 +9,7 @@ from collections import namedtuple
 
 
 appname = 'kitty'
-version = (0, 12, 0)
+version = (0, 12, 1)
 str_version = '.'.join(map(str, version))
 _plat = sys.platform.lower()
 is_macos = 'darwin' in _plat

kitty/control-codes.h

@@ -16,7 +16,7 @@
 // *Bell*: Beeps.
 #define BEL 0x07
 
-// *Backspace*: Backspace one column, but not past the begining of the
+// *Backspace*: Backspace one column, but not past the beginning of the
 // line.
 #define BS 0x08
 

kitty/core_text.m

@@ -171,6 +171,14 @@ find_substitute_face(CFStringRef str, CTFontRef old_font) {
         else start++;
         if (new_font == NULL) { PyErr_SetString(PyExc_ValueError, "Failed to find fallback CTFont"); return NULL; }
         if (new_font == old_font) { CFRelease(new_font); continue; }
+        CFStringRef name = CTFontCopyPostScriptName(new_font);
+        CFComparisonResult cr = CFStringCompare(name, CFSTR("LastResort"), 0);
+        CFRelease(name);
+        if (cr == kCFCompareEqualTo) {
+            CFRelease(new_font);
+            PyErr_SetString(PyExc_ValueError, "Failed to find fallback CTFont other than the LastResort font");
+            return NULL;
+        }
         return new_font;
     }
     PyErr_SetString(PyExc_ValueError, "CoreText returned the same font as a fallback font");

kitty/data-types.c

@@ -126,6 +126,7 @@ open_tty(PyObject *self UNUSED, PyObject *args) {
     if (!read_with_timeout) flags |= O_NONBLOCK;
     static char ctty[L_ctermid+1];
     int fd = open(ctermid(ctty), flags);
+    if (fd == -1) { PyErr_SetFromErrno(PyExc_OSError); return NULL; }
     struct termios *termios_p = calloc(1, sizeof(struct termios));
     if (!termios_p) return PyErr_NoMemory();
     if (tcgetattr(fd, termios_p) != 0) { free(termios_p); PyErr_SetFromErrno(PyExc_OSError); return NULL; }

kitty/fonts.c

@@ -1077,10 +1077,10 @@ send_prerendered_sprites(FontGroup *fg) {
     do_increment(fg, &error);
     if (error != 0) { sprite_map_set_error(error); PyErr_Print(); fatal("failed"); }
     PyObject *args = PyObject_CallFunction(prerender_function, "IIIIIdd", fg->cell_width, fg->cell_height, fg->baseline, fg->underline_position, fg->underline_thickness, fg->logical_dpi_x, fg->logical_dpi_y);
-    if (args == NULL) { PyErr_Print(); fatal("Failed to prerender cells"); }
+    if (args == NULL) { PyErr_Print(); fatal("Failed to pre-render cells"); }
     for (ssize_t i = 0; i < PyTuple_GET_SIZE(args) - 1; i++) {
         x = fg->sprite_tracker.x; y = fg->sprite_tracker.y; z = fg->sprite_tracker.z;
-        if (y > 0) { fatal("too many prerendered sprites for your GPU"); }
+        if (y > 0) { fatal("too many pre-rendered sprites for your GPU or the font size is too large"); }
         do_increment(fg, &error);
         if (error != 0) { sprite_map_set_error(error); PyErr_Print(); fatal("failed"); }
         uint8_t *alpha_mask = PyLong_AsVoidPtr(PyTuple_GET_ITEM(args, i));
@@ -1280,6 +1280,7 @@ get_fallback_font(PyObject UNUSED *self, PyObject *args) {
     if (italic) gpu_cell.attrs |= 1 << ITALIC_SHIFT;
     FontGroup *fg = font_groups;
     ssize_t ans = fallback_font(fg, &cpu_cell, &gpu_cell);
+    if (ans == MISSING_FONT) { PyErr_SetString(PyExc_ValueError, "No fallback font found"); return NULL; }
     if (ans < 0) { PyErr_SetString(PyExc_ValueError, "Too many fallback fonts"); return NULL; }
     return fg->fonts[ans].face;
 }

kitty/fonts/render.py

@@ -5,7 +5,7 @@
 import ctypes
 import sys
 from functools import partial
-from math import ceil, floor, pi, sin, sqrt
+from math import ceil, pi, cos, sqrt
 
 from kitty.config import defaults
 from kitty.constants import is_macos
@@ -116,7 +116,7 @@ def add_dline(buf, cell_width, position, thickness, cell_height):
 
 def add_curl(buf, cell_width, position, thickness, cell_height):
     xfactor = 2.0 * pi / cell_width
-    yfactor = thickness
+    yfactor = max(thickness, 2)
 
     def clamp_y(y):
         return max(0, min(int(y), cell_height - 1))
@@ -125,19 +125,18 @@ def add_curl(buf, cell_width, position, thickness, cell_height):
         return max(0, min(int(x), cell_width - 1))
 
     def add_intensity(x, y, distance):
-        buf[cell_width * y + x] = min(
-            255, buf[cell_width * y + x] + int(255 * (1 - distance))
+        idx = cell_width * y + x
+        buf[idx] = min(
+            255, buf[idx] + int(255 * (1 - distance))
         )
 
     for x_exact in range(cell_width):
-        y_exact = yfactor * sin(x_exact * xfactor) + position
-        y_below = clamp_y(floor(y_exact))
-        y_above = clamp_y(ceil(y_exact))
+        y_exact = yfactor * cos(x_exact * xfactor) + position
+        y = clamp_y(ceil(y_exact))
         x_before, x_after = map(clamp_x, (x_exact - 1, x_exact + 1))
         for x in {x_before, x_exact, x_after}:
-            for y in {y_below, y_above}:
-                dist = sqrt((x - x_exact)**2 + (y - y_exact)**2) / 2
-                add_intensity(x, y, dist)
+            dist = sqrt((x - x_exact)**2 + (y - y_exact)**2) / 2
+            add_intensity(x, y, dist)
 
 
 def render_special(

kitty/glfw-wrapper.h

@@ -734,6 +734,10 @@ typedef int (* GLFWapplicationshouldhandlereopenfun)(int);
  *  [attribute](@ref GLFW_CLIENT_API_attrib).
  */
 #define GLFW_CONTEXT_CREATION_API   0x0002200B
+/*! @brief Window content area scaling window
+ *  [window hint](@ref GLFW_SCALE_TO_MONITOR).
+ */
+#define GLFW_SCALE_TO_MONITOR       0x0002200C
 
 #define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
 #define GLFW_COCOA_FRAME_NAME         0x00023002
@@ -741,6 +745,8 @@ typedef int (* GLFWapplicationshouldhandlereopenfun)(int);
 
 #define GLFW_X11_CLASS_NAME         0x00024001
 #define GLFW_X11_INSTANCE_NAME      0x00024002
+
+#define GLFW_WAYLAND_APP_ID         0x00025001
 /*! @} */
 
 #define GLFW_NO_API                          0

kitty/glfw.c

@@ -278,12 +278,11 @@ set_default_window_icon(PyObject UNUSED *self, PyObject *args) {
     Py_RETURN_NONE;
 }
 
-static GLFWwindow *current_os_window_ctx = NULL;
 
 void
 make_os_window_context_current(OSWindow *w) {
-    if (w->handle != current_os_window_ctx) {
-        current_os_window_ctx = w->handle;
+    GLFWwindow *current_context = glfwGetCurrentContext();
+    if (w->handle != current_context) {
         glfwMakeContextCurrent(w->handle);
     }
 }
@@ -409,6 +408,7 @@ create_os_window(PyObject UNUSED *self, PyObject *args) {
 #ifndef __APPLE__
     glfwWindowHintString(GLFW_X11_INSTANCE_NAME, wm_class_name);
     glfwWindowHintString(GLFW_X11_CLASS_NAME, wm_class_class);
+    glfwWindowHintString(GLFW_WAYLAND_APP_ID, wm_class_class);
     if (OPT(x11_hide_window_decorations)) {
         glfwWindowHint(GLFW_DECORATED, GLFW_FALSE);
     }
@@ -488,7 +488,6 @@ create_os_window(PyObject UNUSED *self, PyObject *args) {
     }
     w->logical_dpi_x = dpi_x; w->logical_dpi_y = dpi_y;
     w->fonts_data = fonts_data;
-    current_os_window_ctx = glfw_window;
     w->shown_once = true;
     push_focus_history(w);
     glfwSwapInterval(OPT(sync_to_monitor) ? 1 : 0);
@@ -535,7 +534,6 @@ destroy_os_window(OSWindow *w) {
         show_mouse_cursor(w->handle);
         glfwSetCursor(w->handle, NULL);
         glfwDestroyWindow(w->handle);
-        if (current_os_window_ctx == w->handle) current_os_window_ctx = NULL;
     }
     w->handle = NULL;
 #ifdef __APPLE__

kitty/history.c

@@ -61,7 +61,7 @@ new(PyTypeObject *type, PyObject *args, PyObject UNUSED *kwds) {
 
     if (!PyArg_ParseTuple(args, "II", &ynum, &xnum)) return NULL;
 
-    if (xnum * ynum == 0) {
+    if (xnum == 0 || ynum == 0) {
         PyErr_SetString(PyExc_ValueError, "Cannot create an empty history buffer");
         return NULL;
     }
@@ -74,9 +74,6 @@ new(PyTypeObject *type, PyObject *args, PyObject UNUSED *kwds) {
         add_segment(self);
         self->line = alloc_line();
         self->line->xnum = xnum;
-        for(index_type y = 0; y < self->ynum; y++) {
-            clear_chars_in_line(cpu_lineptr(self, y), gpu_lineptr(self, y), self->xnum, BLANK_CHAR);
-        }
     }
 
     return (PyObject*)self;
@@ -164,7 +161,7 @@ line(HistoryBuf *self, PyObject *val) {
 
 static PyObject*
 __str__(HistoryBuf *self) {
-    PyObject *lines = PyTuple_New(self->ynum);
+    PyObject *lines = PyTuple_New(self->count);
     if (lines == NULL) return PyErr_NoMemory();
     for (index_type i = 0; i < self->count; i++) {
         init_line(self, index_of(self, i), self->line);
@@ -225,7 +222,7 @@ static PyObject*
 dirty_lines(HistoryBuf *self, PyObject *a UNUSED) {
 #define dirty_lines_doc "dirty_lines() -> Line numbers of all lines that have dirty text."
     PyObject *ans = PyList_New(0);
-    for (index_type i = 0; i < self->ynum; i++) {
+    for (index_type i = 0; i < self->count; i++) {
         if (*attrptr(self, i) & TEXT_DIRTY_MASK) {
             PyList_Append(ans, PyLong_FromUnsignedLong(i));
         }

kitty/keys.c

@@ -103,13 +103,9 @@ check_if_special(int key, int mods, int scancode) {
         qkey = SPECIAL_INDEX(qkey);
         special = needs_special_handling[qkey];
     }
-#ifdef __APPLE__
-    (void)scancode;
-#else
-        for (size_t i = 0; !special && i < native_special_keys_count; i++) {
-            if (scancode == native_special_keys[i].scancode && mods == native_special_keys[i].mods) special = true;
-        }
-#endif
+    for (size_t i = 0; !special && i < native_special_keys_count; i++) {
+        if (scancode == native_special_keys[i].scancode && mods == native_special_keys[i].mods) special = true;
+    }
     return special;
 }
 
@@ -127,7 +123,7 @@ update_ime_position(OSWindow *os_window, Window* w, Screen *screen) {
 void
 on_key_input(int key, int scancode, int action, int mods, const char* text, int state) {
     Window *w = active_window();
-    debug("on_key_input: glfw key: %d native_code: %d action: %s mods: 0x%x text: '%s' state: %d ",
+    debug("on_key_input: glfw key: %d native_code: 0x%x action: %s mods: 0x%x text: '%s' state: %d ",
             key, scancode,
             (action == GLFW_RELEASE ? "RELEASE" : (action == GLFW_PRESS ? "PRESS" : "REPEAT")),
             mods, text, state);
@@ -222,15 +218,13 @@ PYWRAP1(key_for_native_key_name) {
     const char *name;
     int case_sensitive = 0;
     PA("s|p", &name, case_sensitive);
-#ifdef __APPLE__
-    Py_RETURN_NONE;
-#else
+#ifndef __APPLE__
     if (glfwGetXKBScancode) {  // if this function is called before GLFW is initialized glfwGetXKBScancode will be NULL
         int scancode = glfwGetXKBScancode(name, case_sensitive);
         if (scancode) return Py_BuildValue("i", scancode);
     }
-    Py_RETURN_NONE;
 #endif
+    Py_RETURN_NONE;
 }
 
 static PyMethodDef module_methods[] = {

kitty/keys.py

@@ -8,7 +8,6 @@ from . import fast_data_types as defines
 from .key_encoding import KEY_MAP
 from .terminfo import key_as_bytes
 from .utils import base64_encode
-from .constants import is_macos
 
 
 def modify_key_bytes(keybytes, amt):
@@ -276,7 +275,7 @@ def interpret_key_event(key, scancode, mods, window, action):
 def get_shortcut(keymap, mods, key, scancode):
     mods &= 0b1111
     ans = keymap.get((mods, False, key))
-    if ans is None and not is_macos:
+    if ans is None:
         ans = keymap.get((mods, True, scancode))
     return ans
 

kitty/main.py

@@ -191,12 +191,12 @@ def setup_profiling(args):
             print('To view the graphical call data, use: kcachegrind', cg)
 
 
-def macos_cmdline():
+def macos_cmdline(argv_args):
     try:
         with open(os.path.join(config_dir, 'macos-launch-services-cmdline')) as f:
             raw = f.read()
     except FileNotFoundError:
-        return []
+        return argv_args
     import shlex
     raw = raw.strip()
     ans = shlex.split(raw)
@@ -242,7 +242,7 @@ def _main():
     args = sys.argv[1:]
     if is_macos and os.environ.pop('KITTY_LAUNCHED_BY_LAUNCH_SERVICES', None) == '1':
         os.chdir(os.path.expanduser('~'))
-        args = macos_cmdline()
+        args = macos_cmdline(args)
     try:
         cwd_ok = os.path.isdir(os.getcwd())
     except Exception:

kitty/screen.c

@@ -708,7 +708,15 @@ screen_is_cursor_visible(Screen *self) {
 
 void
 screen_backspace(Screen *self) {
-    screen_cursor_back(self, 1, -1);
+    unsigned int amount = 1;
+    if (self->cursor->x < self->columns && self->cursor->x > 1) {
+        // check if previous character is a wide character
+        linebuf_init_line(self->linebuf, self->cursor->y);
+        unsigned int xpos = self->cursor->x - 2;
+        GPUCell *gpu_cell = self->linebuf->line->gpu_cells + xpos;
+        if ((gpu_cell->attrs & WIDTH_MASK) == 2) amount = 2;
+    }
+    screen_cursor_back(self, amount, -1);
 }
 
 void

kitty/state.c

@@ -90,6 +90,7 @@ add_os_window() {
 static inline id_type
 add_tab(id_type os_window_id) {
     WITH_OS_WINDOW(os_window_id)
+        make_os_window_context_current(os_window);
         ensure_space_for(os_window, tabs, Tab, os_window->num_tabs + 1, capacity, 1, true);
         memset(os_window->tabs + os_window->num_tabs, 0, sizeof(Tab));
         os_window->tabs[os_window->num_tabs].id = ++global_state.tab_id_counter;

kitty_tests/fonts.py

@@ -2,10 +2,13 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2017, Kovid Goyal <kovid at kovidgoyal.net>
 
+import sys
+import unittest
+
 from kitty.constants import is_macos
 from kitty.fast_data_types import (
-    DECAWM, sprite_map_set_layout, sprite_map_set_limits, test_render_line,
-    test_sprite_position_for, wcwidth
+    DECAWM, get_fallback_font, sprite_map_set_layout, sprite_map_set_limits,
+    test_render_line, test_sprite_position_for, wcwidth
 )
 from kitty.fonts.box_drawing import box_chars
 from kitty.fonts.render import render_string, setup_for_testing, shape_string
@@ -106,3 +109,16 @@ class Rendering(BaseTest):
         s.draw('\ufe0f')
         self.ae((s.cursor.x, s.cursor.y), (2, 4))
         self.ae(str(s.line(s.cursor.y)), '\u2716\ufe0f')
+
+    @unittest.skipUnless(is_macos, 'Only macOS has a Last Resort font')
+    def test_fallback_font_not_last_resort(self):
+        # Ensure that the LastResort font is not reported as a fallback font on
+        # macOS. See https://github.com/kovidgoyal/kitty/issues/799
+        from io import StringIO
+        orig, buf = sys.stderr, StringIO()
+        sys.stderr = buf
+        try:
+            self.assertRaises(ValueError, get_fallback_font, '\U0010FFFF', False, False)
+        finally:
+            sys.stderr = orig
+        self.assertIn('LastResort', buf.getvalue())

kitty_tests/screen.py

@@ -222,6 +222,15 @@ class TestScreen(BaseTest):
         for i in range(1, 5):
             self.ae(str(s.line(i)), '12345')
 
+    def test_backspace_wide_characters(self):
+        s = self.create_screen()
+        s.draw('⛅')
+        self.ae(s.cursor.x, 2)
+        s.backspace()
+        s.draw(' ')
+        s.backspace()
+        self.ae(s.cursor.x, 0)
+
     def test_resize(self):
         s = self.create_screen(scrollback=6)
         s.draw(''.join([str(i) * s.columns for i in range(s.lines)]))

publish.py

@@ -331,8 +331,14 @@ def require_git_master(branch='master'):
         raise SystemExit('You must be in the {} git branch'.format(branch))
 
 
+def require_penv():
+    if 'PENV' not in os.environ:
+        raise SystemExit('The PENV env var is not present, required for uploading releases')
+
+
 def main():
     require_git_master()
+    require_penv()
     parser = argparse.ArgumentParser(description='Publish kitty')
     parser.add_argument(
         '--only',