wlr-seat: touch grab begin and end
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469729d3af
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cbb6fd7352
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@ -175,6 +175,9 @@ struct wlr_seat {
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struct wl_signal keyboard_grab_begin;
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struct wl_signal keyboard_grab_end;
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struct wl_signal touch_grab_begin;
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struct wl_signal touch_grab_end;
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struct wl_signal request_set_cursor;
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struct wl_signal selection;
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@ -371,6 +374,19 @@ void wlr_seat_keyboard_enter(struct wlr_seat *wlr_seat,
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*/
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void wlr_seat_keyboard_clear_focus(struct wlr_seat *wlr_seat);
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/**
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* Start a grab of the touch device of this seat. The grabber is responsible for
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* handling all touch events until the grab ends.
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*/
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void wlr_seat_touch_start_grab(struct wlr_seat *wlr_seat,
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struct wlr_seat_touch_grab *grab);
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/**
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* End the grab of the touch device of this seat. This reverts the grab back to
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* the default grab for the touch device.
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*/
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void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat);
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/**
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* Get the active touch point with the given `touch_id`. If the touch point does
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* not exist or is no longer active, returns NULL.
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@ -407,6 +407,9 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
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wl_signal_init(&wlr_seat->events.keyboard_grab_begin);
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wl_signal_init(&wlr_seat->events.keyboard_grab_end);
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wl_signal_init(&wlr_seat->events.touch_grab_begin);
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wl_signal_init(&wlr_seat->events.touch_grab_end);
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return wlr_seat;
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}
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@ -867,6 +870,26 @@ void wlr_seat_keyboard_notify_key(struct wlr_seat *seat, uint32_t time,
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grab->interface->key(grab, time, key, state);
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}
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void wlr_seat_touch_start_grab(struct wlr_seat *wlr_seat,
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struct wlr_seat_touch_grab *grab) {
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grab->seat = wlr_seat;
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wlr_seat->touch_state.grab = grab;
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wl_signal_emit(&wlr_seat->events.touch_grab_begin, grab);
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}
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void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat) {
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struct wlr_seat_touch_grab *grab = wlr_seat->touch_state.grab;
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if (grab != wlr_seat->touch_state.default_grab) {
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wlr_seat->touch_state.grab = wlr_seat->touch_state.default_grab;
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wl_signal_emit(&wlr_seat->events.touch_grab_end, grab);
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if (grab->interface->cancel) {
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grab->interface->cancel(grab);
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}
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}
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}
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static void touch_point_destroy(struct wlr_touch_point *point) {
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wl_list_remove(&point->surface_destroy.link);
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wl_list_remove(&point->resource_destroy.link);
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