macOS: Add macOS standard shortcuts

For copy, paste and new OS window (⌘+C, ⌘+V, ⌘+N)
Only defined on macOS, not Linux, thanks to the new config
infrastructure.

docs/changelog.rst

@@ -50,6 +50,9 @@ Changelog
 - macOS: Keep kitty running even when the last window is closed. This is in
   line with how applications are supposed to behave on macOS (:iss:`543`)
 
+- macOS: Add macOS standard shortcuts for copy, paste and new OS window
+  (⌘+C, ⌘+V, ⌘+N)
+
 - Add a config option (:opt:`editor`) to set the EDITOR kitty uses (:iss:`580`)
 
 - Add a config option (:opt:`x11_hide_window_decorations`) to hide window

docs/index.rst

@@ -138,7 +138,7 @@ Windows
 Action                      Shortcut
 ========================    =======================
 New window                  :sc:`new_window`
-New OS window               :sc:`new_os_window`
+New OS window               :sc:`new_os_window` (also :kbd:`⌘+n` on macOS)
 Close window                :sc:`close_window`
 Next window                 :sc:`next_window`
 Previous window             :sc:`previous_window`
@@ -156,8 +156,8 @@ Other keyboard shortcuts
 ==================================  =======================
 Action                              Shortcut
 ==================================  =======================
-Copy to clipboard                   :sc:`copy_to_clipboard`
-Paste from clipboard                :sc:`paste_from_clipboard`
+Copy to clipboard                   :sc:`copy_to_clipboard` (also :kbd:`⌘+c` on macOS)
+Paste from clipboard                :sc:`paste_from_clipboard` (also :kbd:`⌘+v` on macOS)
 Paste from selection                :sc:`paste_from_selection`
 Increase font size                  :sc:`increase_font_size`
 Decrease font size                  :sc:`decrease_font_size`

kitty/config_data.py

@@ -10,6 +10,7 @@ from .conf.definition import option_func
 from .conf.utils import (
     choices, positive_float, positive_int, to_cmdline, to_color, unit_float
 )
+from .constants import is_macos
 from .fast_data_types import CURSOR_BEAM, CURSOR_BLOCK, CURSOR_UNDERLINE
 from .layout import all_layouts
 from .rgb import color_as_int, color_as_sharp, color_from_int
@@ -690,6 +691,9 @@ You can have kitty remove all shortcut definition seen up to this point. Useful,
 instance, to remove the default shortcuts.'''))
 
 g('shortcuts.clipboard')  # {{{
+if is_macos:
+    k('copy_to_clipboard', 'cmd+c', 'copy_to_clipboard', _('Copy to clipboard'), add_to_docs=False)
+    k('paste_from_clipboard', 'cmd+v', 'paste_from_clipboard', _('Paste from clipboard'), add_to_docs=False)
 k('copy_to_clipboard', 'kitty_mod+c', 'copy_to_clipboard', _('Copy to clipboard'))
 k('paste_from_clipboard', 'kitty_mod+v', 'paste_from_clipboard', _('Paste from clipboard'))
 k('paste_from_selection', 'kitty_mod+s', 'paste_from_selection', _('Paste from selection'))
@@ -741,6 +745,8 @@ working directory of the current window using::
 
     map ctrl+alt+enter    new_window_with_cwd
 '''))
+if is_macos:
+    k('new_os_window', 'cmd+n', 'new_os_window', _('New OS window'))
 k('new_os_window', 'kitty_mod+n', 'new_os_window', _('New OS window'))
 k('close_window', 'kitty_mod+w', 'close_window', _('Close window'))
 k('next_window', 'kitty_mod+]', 'next_window', _('Next window'))

kitty/main.py

@@ -16,7 +16,7 @@ from .constants import (
 )
 from .fast_data_types import (
     create_os_window, free_font_data, glfw_init, glfw_terminate,
-    set_default_window_icon, set_options
+    set_default_window_icon, set_options, GLFW_MOD_SUPER
 )
 from .fonts.box_drawing import set_scale
 from .fonts.render import set_font_family
@@ -42,16 +42,29 @@ def init_graphics(debug_keyboard=False):
     return glfw_module
 
 
-def _run_app(opts, args):
+def prefer_cmd_shortcuts(x):
+    return x[0] == GLFW_MOD_SUPER
+
+
+def get_new_os_window_trigger(opts):
     new_os_window_trigger = None
     if is_macos:
+        new_os_window_shortcuts = []
         for k, v in opts.keymap.items():
             if v.func == 'new_os_window':
-                new_os_window_trigger = k
+                new_os_window_shortcuts.append(k)
+        if new_os_window_shortcuts:
             from .fast_data_types import cocoa_set_new_window_trigger
-                if not cocoa_set_new_window_trigger(*new_os_window_trigger):
-                    new_os_window_trigger = None
+            new_os_window_shortcuts.sort(key=prefer_cmd_shortcuts, reverse=True)
+            for candidate in new_os_window_shortcuts:
+                if cocoa_set_new_window_trigger(*candidate):
+                    new_os_window_trigger = candidate
+                    break
+    return new_os_window_trigger
 
+
+def _run_app(opts, args):
+    new_os_window_trigger = get_new_os_window_trigger(opts)
     with cached_values_for(run_app.cached_values_name) as cached_values:
         with startup_notification_handler(extra_callback=run_app.first_window_callback) as pre_show_callback:
             window_id = create_os_window(