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wlr-seat: touch grab begin and end

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This commit is contained in:
Tony Crisci 2017-11-12 17:34:32 -05:00
parent 469729d3af
commit cbb6fd7352
2 changed files with 39 additions and 0 deletions
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16
include/wlr/types/wlr_seat.h
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@ -175,6 +175,9 @@ struct wlr_seat {
struct wl_signal keyboard_grab_begin;
struct wl_signal keyboard_grab_end;
struct wl_signal touch_grab_begin;
struct wl_signal touch_grab_end;
struct wl_signal request_set_cursor;
struct wl_signal selection;
@ -371,6 +374,19 @@ void wlr_seat_keyboard_enter(struct wlr_seat *wlr_seat,
*/
void wlr_seat_keyboard_clear_focus(struct wlr_seat *wlr_seat);
/**
* Start a grab of the touch device of this seat. The grabber is responsible for
* handling all touch events until the grab ends.
*/
void wlr_seat_touch_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_touch_grab *grab);
/**
* End the grab of the touch device of this seat. This reverts the grab back to
* the default grab for the touch device.
*/
void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat);
/**
* Get the active touch point with the given `touch_id`. If the touch point does
* not exist or is no longer active, returns NULL.

23
types/wlr_seat.c
View file

@ -407,6 +407,9 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
wl_signal_init(&wlr_seat->events.keyboard_grab_begin);
wl_signal_init(&wlr_seat->events.keyboard_grab_end);
wl_signal_init(&wlr_seat->events.touch_grab_begin);
wl_signal_init(&wlr_seat->events.touch_grab_end);
return wlr_seat;
}
@ -867,6 +870,26 @@ void wlr_seat_keyboard_notify_key(struct wlr_seat *seat, uint32_t time,
grab->interface->key(grab, time, key, state);
}
void wlr_seat_touch_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_touch_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->touch_state.grab = grab;
wl_signal_emit(&wlr_seat->events.touch_grab_begin, grab);
}
void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat) {
struct wlr_seat_touch_grab *grab = wlr_seat->touch_state.grab;
if (grab != wlr_seat->touch_state.default_grab) {
wlr_seat->touch_state.grab = wlr_seat->touch_state.default_grab;
wl_signal_emit(&wlr_seat->events.touch_grab_end, grab);
if (grab->interface->cancel) {
grab->interface->cancel(grab);
}
}
}
static void touch_point_destroy(struct wlr_touch_point *point) {
wl_list_remove(&point->surface_destroy.link);
wl_list_remove(&point->resource_destroy.link);