Implement request_move and request_resize for xwayland views

I discovered we have to send a click event when ending the move or
resize operation to make xwayland's requests work correctly.

sway/desktop/xwayland.c

@@ -305,6 +305,8 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&xwayland_view->destroy.link);
 	wl_list_remove(&xwayland_view->request_configure.link);
 	wl_list_remove(&xwayland_view->request_fullscreen.link);
+	wl_list_remove(&xwayland_view->request_move.link);
+	wl_list_remove(&xwayland_view->request_resize.link);
 	wl_list_remove(&xwayland_view->set_title.link);
 	wl_list_remove(&xwayland_view->set_class.link);
 	wl_list_remove(&xwayland_view->set_window_type.link);
@@ -400,6 +402,37 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 	transaction_commit_dirty();
 }
 
+static void handle_request_move(struct wl_listener *listener, void *data) {
+	struct sway_xwayland_view *xwayland_view =
+		wl_container_of(listener, xwayland_view, request_move);
+	struct sway_view *view = &xwayland_view->view;
+	struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
+	if (!xsurface->mapped) {
+		return;
+	}
+	if (!container_is_floating(view->swayc)) {
+		return;
+	}
+	struct sway_seat *seat = input_manager_current_seat(input_manager);
+	seat_begin_move(seat, view->swayc, seat->last_button);
+}
+
+static void handle_request_resize(struct wl_listener *listener, void *data) {
+	struct sway_xwayland_view *xwayland_view =
+		wl_container_of(listener, xwayland_view, request_resize);
+	struct sway_view *view = &xwayland_view->view;
+	struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
+	if (!xsurface->mapped) {
+		return;
+	}
+	if (!container_is_floating(view->swayc)) {
+		return;
+	}
+	struct wlr_xwayland_resize_event *e = data;
+	struct sway_seat *seat = input_manager_current_seat(input_manager);
+	seat_begin_resize(seat, view->swayc, seat->last_button, e->edges);
+}
+
 static void handle_set_title(struct wl_listener *listener, void *data) {
 	struct sway_xwayland_view *xwayland_view =
 		wl_container_of(listener, xwayland_view, set_title);
@@ -495,6 +528,14 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 		&xwayland_view->request_fullscreen);
 	xwayland_view->request_fullscreen.notify = handle_request_fullscreen;
 
+	wl_signal_add(&xsurface->events.request_move,
+		&xwayland_view->request_move);
+	xwayland_view->request_move.notify = handle_request_move;
+
+	wl_signal_add(&xsurface->events.request_resize,
+		&xwayland_view->request_resize);
+	xwayland_view->request_resize.notify = handle_request_resize;
+
 	wl_signal_add(&xsurface->events.set_title, &xwayland_view->set_title);
 	xwayland_view->set_title.notify = handle_set_title;
 

sway/input/cursor.c

@@ -474,6 +474,7 @@ void dispatch_cursor_button(struct sway_cursor *cursor,
 	if (cursor->seat->operation != OP_NONE &&
 			button == cursor->seat->op_button && state == WLR_BUTTON_RELEASED) {
 		seat_end_mouse_operation(cursor->seat);
+		seat_pointer_notify_button(cursor->seat, time_msec, button, state);
 		return;
 	}
 	if (time_msec == 0) {