Fix mouse actions not working when caps lock or num lock are engaged

Fixes #3859

docs/changelog.rst

@@ -60,6 +60,9 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 
 - Allow leading or trailing spaces in :opt:`tab_activity_symbol`
 
+- Fix mouse actions not working when caps lock or num lock are engaged
+  (:iss:`3859`)
+
 - macOS: Fix automatic detection of bold/italic faces for fonts that
   use the family name as the full face name of the regular font not working
   (:iss:`3861`)

kitty/keys.py

@@ -6,15 +6,14 @@ from typing import Optional, Union
 
 from .conf.utils import KeyAction
 from .fast_data_types import (
-    GLFW_MOD_ALT, GLFW_MOD_CAPS_LOCK, GLFW_MOD_CONTROL, GLFW_MOD_HYPER,
-    GLFW_MOD_META, GLFW_MOD_NUM_LOCK, GLFW_MOD_SHIFT, GLFW_MOD_SUPER, KeyEvent
+    GLFW_MOD_ALT, GLFW_MOD_CONTROL, GLFW_MOD_HYPER, GLFW_MOD_META,
+    GLFW_MOD_SHIFT, GLFW_MOD_SUPER, KeyEvent
 )
 from .options.utils import KeyMap, SequenceMap, SubSequenceMap
 from .types import SingleKey
 from .typing import ScreenType
 
 mod_mask = GLFW_MOD_ALT | GLFW_MOD_CONTROL | GLFW_MOD_SHIFT | GLFW_MOD_SUPER | GLFW_MOD_META | GLFW_MOD_HYPER
-lock_mask = GLFW_MOD_NUM_LOCK | GLFW_MOD_CAPS_LOCK
 
 
 def keyboard_mode_name(screen: ScreenType) -> str:

kitty/window.py

@@ -33,7 +33,7 @@ from .fast_data_types import (
     set_titlebar_color, set_window_padding, set_window_render_data,
     update_window_title, update_window_visibility, viewport_for_window
 )
-from .keys import keyboard_mode_name
+from .keys import keyboard_mode_name, mod_mask
 from .notify import NotificationCommand, handle_notification_cmd
 from .options.types import Options
 from .rgb import to_color
@@ -570,6 +570,7 @@ class Window:
         get_boss().child_monitor.set_iutf8_winid(self.id, on)
 
     def on_mouse_event(self, event: Dict[str, Any]) -> bool:
+        event['mods'] = event.get('mods', 0) & mod_mask
         ev = MouseEvent(**event)
         self.current_mouse_event_button = ev.button
         action = get_options().mousemap.get(ev)