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				https://gitlab.freedesktop.org/wlroots/wlroots.git
				synced 2025-11-03 09:01:40 -05:00 
			
		
		
		
	wlr-seat: refactor touch grab interface
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					 4 changed files with 56 additions and 42 deletions
				
			
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					@ -24,6 +24,22 @@ struct wlr_seat_client {
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	struct wl_list link;
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						struct wl_list link;
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};
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					};
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					struct wlr_touch_point {
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						int32_t touch_id;
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						struct wlr_surface *surface;
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						struct wlr_seat_client *client;
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						double sx, sy;
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						struct wl_listener surface_destroy;
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						struct wl_listener resource_destroy;
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						struct {
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							struct wl_signal destroy;
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						} events;
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						struct wl_list link;
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					};
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struct wlr_seat_pointer_grab;
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					struct wlr_seat_pointer_grab;
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struct wlr_pointer_grab_interface {
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					struct wlr_pointer_grab_interface {
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					@ -52,11 +68,12 @@ struct wlr_keyboard_grab_interface {
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struct wlr_seat_touch_grab;
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					struct wlr_seat_touch_grab;
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struct wlr_touch_grab_interface {
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					struct wlr_touch_grab_interface {
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	void (*down)(struct wlr_seat_touch_grab *grab, struct wlr_surface *surface,
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						void (*down)(struct wlr_seat_touch_grab *grab, uint32_t time,
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			uint32_t time, int32_t touch_id, double sx, double sy);
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								struct wlr_touch_point *point);
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	void (*up)(struct wlr_seat_touch_grab *grab, uint32_t time, int32_t touch_id);
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						void (*up)(struct wlr_seat_touch_grab *grab, uint32_t time,
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	void (*motion)(struct wlr_seat_touch_grab *grab, uint32_t time, int32_t
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								struct wlr_touch_point *point);
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			touch_id, double sx, double sy);
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						void (*motion)(struct wlr_seat_touch_grab *grab, uint32_t time,
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								struct wlr_touch_point *point);
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	// XXX this will conflict with the actual touch cancel which is different so
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						// XXX this will conflict with the actual touch cancel which is different so
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	// we need to rename this
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						// we need to rename this
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	void (*cancel)(struct wlr_seat_touch_grab *grab);
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						void (*cancel)(struct wlr_seat_touch_grab *grab);
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					@ -127,18 +144,6 @@ struct wlr_seat_keyboard_state {
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	struct wlr_seat_keyboard_grab *default_grab;
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						struct wlr_seat_keyboard_grab *default_grab;
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};
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					};
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struct wlr_touch_point {
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	int32_t touch_id;
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	struct wlr_surface *surface;
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	struct wlr_seat_client *client;
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	double sx, sy;
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	struct wl_listener surface_destroy;
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	struct wl_listener resource_destroy;
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	struct wl_list link;
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};
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struct wlr_seat_touch_state {
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					struct wlr_seat_touch_state {
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	struct wlr_seat *seat;
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						struct wlr_seat *seat;
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	struct wl_list touch_points; // wlr_touch_point::link
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						struct wl_list touch_points; // wlr_touch_point::link
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					@ -414,10 +419,13 @@ void wlr_seat_touch_notify_up(struct wlr_seat *seat, uint32_t time,
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/**
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					/**
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 * Notify the seat that the touch point given by `touch_id` has moved. Defers to
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					 * Notify the seat that the touch point given by `touch_id` has moved. Defers to
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 * any grab of the touch device.
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					 * any grab of the touch device. The seat should be notified of touch motion
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					 * even if the surface is not the owner of the touch point for processing by
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					 * grabs.
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 */
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					 */
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void wlr_seat_touch_notify_motion(struct wlr_seat *seat, uint32_t time,
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					void wlr_seat_touch_notify_motion(struct wlr_seat *seat,
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		int32_t touch_id, double sx, double sy);
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							struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
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							double sy);
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/**
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					/**
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 * Send a touch down event to the client of the given surface. All future touch
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					 * Send a touch down event to the client of the given surface. All future touch
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					@ -442,7 +450,7 @@ void wlr_seat_touch_send_up(struct wlr_seat *seat, uint32_t time,
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/**
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					/**
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 * Send a touch motion event for the touch point given by the `touch_id`. The
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					 * Send a touch motion event for the touch point given by the `touch_id`. The
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 * event will go to the cleint for the surface given in the corresponding touch
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					 * event will go to the client for the surface given in the corresponding touch
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 * down event. Compositors should use `wlr_seat_touch_notify_motion()` to
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					 * down event. Compositors should use `wlr_seat_touch_notify_motion()` to
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 * respect any grabs of the touch device.
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					 * respect any grabs of the touch device.
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 */
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					 */
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					@ -261,8 +261,8 @@ void roots_cursor_handle_touch_motion(struct roots_cursor *cursor,
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	double sx, sy;
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						double sx, sy;
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	view_at(desktop, lx, ly, &surface, &sx, &sy);
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						view_at(desktop, lx, ly, &surface, &sx, &sy);
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	if (surface == point->surface) {
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						if (surface) {
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		wlr_seat_touch_notify_motion(cursor->seat->seat, event->time_msec,
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							wlr_seat_touch_notify_motion(cursor->seat->seat, surface, event->time_msec,
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			event->slot, sx, sy);
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								event->slot, sx, sy);
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	}
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						}
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}
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					}
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					@ -527,15 +527,14 @@ wlr_pointer_grab_interface wlr_data_device_pointer_drag_interface = {
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};
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					};
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static void touch_drag_down(struct wlr_seat_touch_grab *grab,
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					static void touch_drag_down(struct wlr_seat_touch_grab *grab,
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		struct wlr_surface *surface,
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							uint32_t time, struct wlr_touch_point *point) {
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			uint32_t time, int32_t touch_id, double sx, double sy) {
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	// eat the event
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						// eat the event
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}
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					}
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static void touch_drag_up(struct wlr_seat_touch_grab *grab, uint32_t time,
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					static void touch_drag_up(struct wlr_seat_touch_grab *grab, uint32_t time,
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		int32_t touch_id) {
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							struct wlr_touch_point *point) {
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	struct wlr_drag *drag = grab->data;
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						struct wlr_drag *drag = grab->data;
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	if (drag->grab_touch_id != touch_id) {
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						if (drag->grab_touch_id != point->touch_id) {
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		return;
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							return;
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	}
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						}
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					@ -547,11 +546,11 @@ static void touch_drag_up(struct wlr_seat_touch_grab *grab, uint32_t time,
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}
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					}
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static void touch_drag_motion(struct wlr_seat_touch_grab *grab, uint32_t time,
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					static void touch_drag_motion(struct wlr_seat_touch_grab *grab, uint32_t time,
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		int32_t touch_id, double sx, double sy) {
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							struct wlr_touch_point *point) {
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	struct wlr_drag *drag = grab->data;
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						struct wlr_drag *drag = grab->data;
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	if (drag->focus && drag->focus_client && drag->focus_client->data_device) {
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						if (drag->focus && drag->focus_client && drag->focus_client->data_device) {
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		wl_data_device_send_motion(drag->focus_client->data_device, time,
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							wl_data_device_send_motion(drag->focus_client->data_device, time,
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			wl_fixed_from_double(sx), wl_fixed_from_double(sy));
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								wl_fixed_from_double(point->sx), wl_fixed_from_double(point->sy));
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	}
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						}
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}
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					}
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					@ -300,20 +300,21 @@ static const struct wlr_keyboard_grab_interface default_keyboard_grab_impl = {
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	.cancel = default_keyboard_cancel,
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						.cancel = default_keyboard_cancel,
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};
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					};
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static void default_touch_down(struct wlr_seat_touch_grab *grab,
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					static void default_touch_down(struct wlr_seat_touch_grab *grab, uint32_t time,
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		struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
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							struct wlr_touch_point *point) {
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		double sy) {
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						wlr_seat_touch_send_down(grab->seat, point->surface, time, point->touch_id,
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	wlr_seat_touch_send_down(grab->seat, surface, time, touch_id, sx, sy);
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							point->sx, point->sy);
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}
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					}
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static void default_touch_up(struct wlr_seat_touch_grab *grab, uint32_t time,
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					static void default_touch_up(struct wlr_seat_touch_grab *grab, uint32_t time,
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		int32_t touch_id) {
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							struct wlr_touch_point *point) {
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	wlr_seat_touch_send_up(grab->seat, time, touch_id);
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						wlr_seat_touch_send_up(grab->seat, time, point->touch_id);
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}
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					}
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static void default_touch_motion(struct wlr_seat_touch_grab *grab,
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					static void default_touch_motion(struct wlr_seat_touch_grab *grab,
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		uint32_t time, int32_t touch_id, double sx, double sy) {
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							uint32_t time, struct wlr_touch_point *point) {
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	wlr_seat_touch_send_motion(grab->seat, time, touch_id, sx, sy);
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						wlr_seat_touch_send_motion(grab->seat, time, point->touch_id, point->sx,
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							point->sy);
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}
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					}
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static void default_touch_cancel(struct wlr_seat_touch_grab *grab) {
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					static void default_touch_cancel(struct wlr_seat_touch_grab *grab) {
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					@ -894,6 +895,7 @@ void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat) {
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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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					static void touch_point_destroy(struct wlr_touch_point *point) {
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						wl_signal_emit(&point->events.destroy, point);
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	wl_list_remove(&point->surface_destroy.link);
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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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						wl_list_remove(&point->resource_destroy.link);
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	wl_list_remove(&point->link);
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						wl_list_remove(&point->link);
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					@ -936,6 +938,8 @@ static struct wlr_touch_point *touch_point_create(
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	point->sx = sx;
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						point->sx = sx;
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	point->sy = sy;
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						point->sy = sy;
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						wl_signal_init(&point->events.destroy);
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	wl_signal_add(&surface->events.destroy, &point->surface_destroy);
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						wl_signal_add(&surface->events.destroy, &point->surface_destroy);
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	point->surface_destroy.notify = handle_touch_point_surface_destroy;
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						point->surface_destroy.notify = handle_touch_point_surface_destroy;
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	wl_resource_add_destroy_listener(surface->resource,
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						wl_resource_add_destroy_listener(surface->resource,
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					@ -971,7 +975,8 @@ void wlr_seat_touch_notify_down(struct wlr_seat *seat,
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		return;
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							return;
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	}
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						}
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	grab->interface->down(grab, surface, time, touch_id, sx, sy);
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						grab->interface->down(grab, time, point);
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	if (wl_list_length(&seat->touch_state.touch_points) == 1) {
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						if (wl_list_length(&seat->touch_state.touch_points) == 1) {
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		seat->touch_state.grab_serial = wl_display_get_serial(seat->display);
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							seat->touch_state.grab_serial = wl_display_get_serial(seat->display);
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		seat->touch_state.grab_id = touch_id;
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							seat->touch_state.grab_id = touch_id;
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					@ -988,12 +993,14 @@ void wlr_seat_touch_notify_up(struct wlr_seat *seat, uint32_t time,
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		return;
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							return;
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	}
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						}
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	grab->interface->up(grab, time, touch_id);
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						grab->interface->up(grab, time, point);
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	touch_point_destroy(point);
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						touch_point_destroy(point);
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}
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					}
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void wlr_seat_touch_notify_motion(struct wlr_seat *seat, uint32_t time,
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					void wlr_seat_touch_notify_motion(struct wlr_seat *seat,
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		int32_t touch_id, double sx, double sy) {
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							struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
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							double sy) {
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	clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
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						clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
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	struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
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						struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
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	struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
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						struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
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					@ -1005,7 +1012,7 @@ void wlr_seat_touch_notify_motion(struct wlr_seat *seat, uint32_t time,
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	point->sx = sx;
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						point->sx = sx;
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	point->sy = sy;
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						point->sy = sy;
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	grab->interface->motion(grab, time, touch_id, sx, sy);
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						grab->interface->motion(grab, time, point);
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}
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					}
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void wlr_seat_touch_send_down(struct wlr_seat *seat,
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					void wlr_seat_touch_send_down(struct wlr_seat *seat,
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