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libweston: add touch device creation signal

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Add a signal for touch device creation to allow plugins to detect and
respond to touch device changes.

Signed-off-by: liang zhou <liang.zhou@gehealthcare.com>
This commit is contained in:
liang zhou 2026-05-15 13:01:28 +08:00 • committed by liang zhou
parent 615f6c0322
commit 1269a908d5
3 changed files with 5 additions and 0 deletions
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1
include/libweston/libweston.h
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@ -1460,6 +1460,7 @@ struct weston_compositor {
struct wl_signal output_destroyed_signal;
struct wl_signal output_moved_signal;
struct wl_signal output_resized_signal; /* callback argument: resized output */
struct wl_signal touch_device_created_signal; /* callback argument: created touch device */
/* Signal for output changes triggered by configuration from frontend
* or head state changes from backend.

1
libweston/compositor.c
View file

@ -10208,6 +10208,7 @@ weston_compositor_create(struct wl_display *display,
wl_signal_init(&ec->output_heads_changed_signal);
wl_signal_init(&ec->session_signal);
wl_signal_init(&ec->output_capture.ask_auth);
wl_signal_init(&ec->touch_device_created_signal);
ec->session_active = true;
ec->output_id_pool = 0;

3
libweston/libinput-seat.c
View file

@ -145,6 +145,9 @@ device_added(struct udev_input *input, struct libinput_device *libinput_device)
seat->led_update(seat, seat->keyboard_state->xkb_state.leds);
}
if (device->touch_device)
wl_signal_emit(&seat->compositor->touch_device_created_signal, device->touch_device);
return 0;
}