rootston: handle grab end

include/rootston/input.h

@@ -105,6 +105,8 @@ struct roots_input {
 	struct wl_listener cursor_axis;
 	struct wl_listener cursor_tool_axis;
 	struct wl_listener cursor_tool_tip;
+
+	struct wl_listener pointer_grab_end;
 };
 
 struct roots_input *input_create(struct roots_server *server,

include/wlr/types/wlr_seat.h

@@ -94,6 +94,9 @@ struct wlr_seat {
 	struct {
 		struct wl_signal client_bound;
 		struct wl_signal client_unbound;
+
+		struct wl_signal pointer_grab_begin;
+		struct wl_signal pointer_grab_end;
 	} events;
 
 	void *data;

rootston/cursor.c

@@ -265,6 +265,12 @@ static void handle_tool_tip(struct wl_listener *listener, void *data) {
 			(uint32_t)(event->time_usec / 1000), BTN_LEFT, event->state);
 }
 
+static void handle_pointer_grab_end(struct wl_listener *listener, void *data) {
+	struct roots_input *input =
+		wl_container_of(listener, input, pointer_grab_end);
+	cursor_update_position(input, 0);
+}
+
 void cursor_initialize(struct roots_input *input) {
 	struct wlr_cursor *cursor = input->cursor;
 
@@ -292,6 +298,9 @@ void cursor_initialize(struct roots_input *input) {
 	wl_list_init(&input->cursor_tool_tip.link);
 	wl_signal_add(&cursor->events.tablet_tool_tip, &input->cursor_tool_tip);
 	input->cursor_tool_tip.notify = handle_tool_tip;
+
+	wl_signal_add(&input->wl_seat->events.pointer_grab_end, &input->pointer_grab_end);
+	input->pointer_grab_end.notify = handle_pointer_grab_end;
 }
 
 static void reset_device_mappings(struct roots_config *config,

types/wlr_seat.c

@@ -246,6 +246,9 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
 	wl_signal_init(&wlr_seat->events.client_bound);
 	wl_signal_init(&wlr_seat->events.client_unbound);
 
+	wl_signal_init(&wlr_seat->events.pointer_grab_begin);
+	wl_signal_init(&wlr_seat->events.pointer_grab_end);
+
 	return wlr_seat;
 }
 
@@ -438,12 +441,14 @@ void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
 		struct wlr_seat_pointer_grab *grab) {
 	grab->seat = wlr_seat;
 	wlr_seat->pointer_state.grab = grab;
-	// TODO: replay the last enter
+
+	wl_signal_emit(&wlr_seat->events.pointer_grab_begin, grab);
 }
 
 void wlr_seat_pointer_end_grab(struct wlr_seat *wlr_seat) {
+	struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
 	wlr_seat->pointer_state.grab = wlr_seat->pointer_state.default_grab;
-	// TODO: replay the last enter
+	wl_signal_emit(&wlr_seat->events.pointer_grab_end, grab);
 }
 
 void wlr_seat_pointer_notify_enter(struct wlr_seat *wlr_seat,