IME: don't forward key-release without correspinding key-press

After commit e2189903 in wlroots, when ctrl-f is pressed in firefox with
a IME client running, the following key-release event for "f" is not
sent, thus "f" is repeated like "ffffffffff..." in the input box of
firefox. This is because the key-release event for "f" is firstly
forwarded to the IME client and then sent via the virtual keyboard created
by the IME client while the key-press event is sent via physical
keyboard, and with e2189903, key-release events without a corresponding
key-press event on the same keyboard is not emitted to the compositor.

So this commit fixes this problem by not forwarding the key-release event
to the IME client unless the corresponding key-press event was also
forwarded.
This commit is contained in:
tokyo4j 2024-12-17 12:06:05 +09:00 committed by Hiroaki Yamamoto
parent 5766bec70a
commit 683f67b761
2 changed files with 19 additions and 0 deletions

View file

@ -21,6 +21,7 @@ struct input_method_relay {
struct wl_list text_inputs; /* struct text_input.link */
struct wlr_input_method_v2 *input_method;
struct wlr_surface *focused_surface;
struct lab_set pressed_keys;
/*
* Text-input which is enabled by the client and communicating with
* input-method.

View file

@ -73,9 +73,25 @@ bool
input_method_keyboard_grab_forward_key(struct keyboard *keyboard,
struct wlr_keyboard_key_event *event)
{
/*
* We should not forward key-release events without corresponding
* key-press events forwarded
*/
struct lab_set *pressed_keys =
&keyboard->base.seat->input_method_relay->pressed_keys;
if (event->state == WL_KEYBOARD_KEY_STATE_RELEASED
&& !lab_set_contains(pressed_keys, event->keycode)) {
return false;
}
struct wlr_input_method_keyboard_grab_v2 *keyboard_grab =
get_keyboard_grab(keyboard);
if (keyboard_grab) {
if (event->state == WL_KEYBOARD_KEY_STATE_PRESSED) {
lab_set_add(pressed_keys, event->keycode);
} else {
lab_set_remove(pressed_keys, event->keycode);
}
wlr_input_method_keyboard_grab_v2_set_keyboard(keyboard_grab,
keyboard->wlr_keyboard);
wlr_input_method_keyboard_grab_v2_send_key(keyboard_grab,
@ -329,6 +345,8 @@ handle_input_method_grab_keyboard(struct wl_listener *listener, void *data)
keyboard_grab, active_keyboard);
}
relay->pressed_keys = (struct lab_set){0};
relay->keyboard_grab_destroy.notify = handle_keyboard_grab_destroy;
wl_signal_add(&keyboard_grab->events.destroy,
&relay->keyboard_grab_destroy);