Input source is not changed with Japanese keyboard mac.

[tamanishi]

Describe the bug
Version 0.24.2 or later, Input source is not changed when pressing Eisu key and Kana key on Japanese keyboard mac.

To Reproduce
Steps to reproduce the behavior:

1. Press Eisu key.
2. Press Kana key.
3. Input source is not changed to Japanese - Romaji.

Additional context

• Input source changes at 0.24.1.

~ ❯ kitty --version
kitty 0.24.1 created by Kovid Goyal
~ ❯ kitty --config=NONE --debug-input
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
Move mouse_button: -1 mods: none grabbed: 0
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
Release: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none 
Release: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none 
Release: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none 
Release: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none 
Release: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none 
Release: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none 

• Input source not changes at 0.24.2.

~ ❯ kitty --version
kitty 0.24.2 created by Kovid Goyal
~ ❯ kitty --config=NONE --debug-input
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
Move mouse_button: -1 mods: none grabbed: 0
updateIMEPosition: left=0.000000, top=6.000000, width=7.000000, height=12.500000
---------------- key down -------------------
NSEvent: type=KeyDown loc=(372.661,1006.68) time=22044.0 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=102
Press: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none char_count: 1 deadKeyState: 0 repeat: 0 
	insertText:  replacementRange: (9223372036854775807, 0)
text: <none> glfw_key: UNKNOWN marked_text: ()
on_key_input: glfw key: 0x0 native_code: 0x66 action: PRESS mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring as keyboard mode does not support encoding this event
----------------- key up --------------------
NSEvent: type=KeyUp loc=(372.661,1006.68) time=22044.0 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=102
Release: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none 
on_key_input: glfw key: 0x0 native_code: 0x66 action: RELEASE mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring release event for previous press that was handled as shortcut
---------------- key down -------------------
NSEvent: type=KeyDown loc=(372.661,1006.68) time=22044.2 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=104
Press: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none char_count: 1 deadKeyState: 0 repeat: 0 
	insertText:  replacementRange: (9223372036854775807, 0)
text: <none> glfw_key: UNKNOWN marked_text: ()
on_key_input: glfw key: 0x0 native_code: 0x68 action: PRESS mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring as keyboard mode does not support encoding this event
----------------- key up --------------------
NSEvent: type=KeyUp loc=(372.661,1006.68) time=22044.2 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=104
Release: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none 
on_key_input: glfw key: 0x0 native_code: 0x68 action: RELEASE mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring release event for previous press that was handled as shortcut
---------------- key down -------------------
NSEvent: type=KeyDown loc=(372.661,1006.68) time=22044.4 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=102
Press: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none char_count: 1 deadKeyState: 0 repeat: 0 
	insertText:  replacementRange: (9223372036854775807, 0)
text: <none> glfw_key: UNKNOWN marked_text: ()
on_key_input: glfw key: 0x0 native_code: 0x66 action: PRESS mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring as keyboard mode does not support encoding this event
----------------- key up --------------------
NSEvent: type=KeyUp loc=(372.661,1006.68) time=22044.4 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=102
Release: native_key: 0x66 (<cc>) glfw_key: 0x0 mods: none 
on_key_input: glfw key: 0x0 native_code: 0x66 action: RELEASE mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring release event for previous press that was handled as shortcut
---------------- key down -------------------
NSEvent: type=KeyDown loc=(372.661,1006.68) time=22044.6 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=104
Press: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none char_count: 1 deadKeyState: 0 repeat: 0 
	insertText:  replacementRange: (9223372036854775807, 0)
text: <none> glfw_key: UNKNOWN marked_text: ()
on_key_input: glfw key: 0x0 native_code: 0x68 action: PRESS mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring as keyboard mode does not support encoding this event
----------------- key up --------------------
NSEvent: type=KeyUp loc=(372.661,1006.68) time=22044.6 flags=0x100 win=0x7fd3b3f23660 winNum=6917 ctxt=0x0 chars="" unmodchars="" repeat=0 keyCode=104
Release: native_key: 0x68 (<cc>) glfw_key: 0x0 mods: none 
on_key_input: glfw key: 0x0 native_code: 0x68 action: RELEASE mods: none text: '' state: 0 updateIMEPosition: left=28.000000, top=31.000000, width=7.000000, height=12.500000
ignoring release event for previous press that was handled as shortcut

[kovidgoyal]

This will be because all key events are now processed by kitty not macOS
in order to fix other problems with macOS default key handling. I dont
have this hardware so its hard fro me to fix this, patches are welcome,
if you want to work on it I will guide you as to where the relevant code
is.

[tamanishi]

patches are welcome,
if you want to work on it I will guide you as to where the relevant code
is.

Thanks.
Please tell me which part of the code I should check.
I will try to check it.