input: close xdg-popups on touch down

Taken over and now shared from the tablet implementation.

include/labwc.h

@@ -486,6 +486,8 @@ void seat_finish(struct server *server);
 void seat_reconfigure(struct server *server);
 void seat_focus_surface(struct seat *seat, struct wlr_surface *surface);
 
+void seat_pointer_end_grab(struct seat *seat, struct wlr_surface *surface);
+
 /**
  * seat_focus_lock_surface() - ONLY to be called from session-lock.c to
  * focus lock screen surfaces. Use seat_focus_surface() otherwise.

src/input/tablet.c

@@ -458,29 +458,6 @@ to_stylus_button(uint32_t button)
 	}
 }
 
-static void
-seat_pointer_end_grab(struct drawing_tablet_tool *tool,
-		struct wlr_surface *surface)
-{
-	if (!surface || !wlr_seat_pointer_has_grab(tool->seat->seat)) {
-		return;
-	}
-
-	struct wlr_xdg_surface *xdg_surface =
-		wlr_xdg_surface_try_from_wlr_surface(surface);
-	if (!xdg_surface || xdg_surface->role != WLR_XDG_SURFACE_ROLE_POPUP) {
-		/*
-		 * If we have an active popup grab (an open popup) and we are
-		 * not on the popup itself, end that grab to close the popup.
-		 * Contrary to pointer button notifications, a tablet button
-		 * notification sometimes doesn't end grabs automatically on
-		 * button notifications in another client (observed in GTK4),
-		 * so end the grab manually.
-		 */
-		wlr_seat_pointer_end_grab(tool->seat->seat);
-	}
-}
-
 static void
 handle_tablet_tool_tip(struct wl_listener *listener, void *data)
 {
@@ -519,7 +496,7 @@ handle_tablet_tool_tip(struct wl_listener *listener, void *data)
 			bool notify = cursor_process_button_press(tool->seat, BTN_LEFT,
 				ev->time_msec);
 			if (notify) {
-				seat_pointer_end_grab(tool, surface);
+				seat_pointer_end_grab(tool->seat, surface);
 				wlr_tablet_v2_tablet_tool_notify_down(tool->tool_v2);
 				wlr_tablet_tool_v2_start_implicit_grab(tool->tool_v2);
 			}
@@ -603,7 +580,7 @@ handle_tablet_tool_button(struct wl_listener *listener, void *data)
 		uint32_t stylus_button = to_stylus_button(button);
 		if (stylus_button && stylus_button != BTN_TOOL_PEN) {
 			if (ev->state == WLR_BUTTON_PRESSED) {
-				seat_pointer_end_grab(tool, surface);
+				seat_pointer_end_grab(tool->seat, surface);
 			}
 			wlr_tablet_v2_tablet_tool_notify_button(tool->tool_v2,
 				stylus_button,

src/input/touch.c

@@ -126,6 +126,7 @@ handle_touch_down(struct wl_listener *listener, void *data)
 	int touch_point_count = wl_list_length(&seat->touch_points);
 
 	if (touch_point->surface) {
+		seat_pointer_end_grab(seat, touch_point->surface);
 		/* Clear focus to not interfere with touch input */
 		wlr_seat_pointer_notify_clear_focus(seat->seat);
 

src/seat.c

@@ -596,6 +596,28 @@ configure_keyboard(struct seat *seat, struct input *input)
 	keyboard_configure(seat, kb, keyboard->is_virtual);
 }
 
+void
+seat_pointer_end_grab(struct seat *seat, struct wlr_surface *surface)
+{
+	if (!surface || !wlr_seat_pointer_has_grab(seat->seat)) {
+		return;
+	}
+
+	struct wlr_xdg_surface *xdg_surface =
+		wlr_xdg_surface_try_from_wlr_surface(surface);
+	if (!xdg_surface || xdg_surface->role != WLR_XDG_SURFACE_ROLE_POPUP) {
+		/*
+		 * If we have an active popup grab (an open popup) and we are
+		 * not on the popup itself, end that grab to close the popup.
+		 * Contrary to pointer button notifications, a tablet/touch
+		 * button notification sometimes doesn't end grabs automatically
+		 * on button notifications in another client (observed in GTK4),
+		 * so end the grab manually.
+		 */
+		wlr_seat_pointer_end_grab(seat->seat);
+	}
+}
+
 /* This is called on SIGHUP (generally in response to labwc --reconfigure */
 void
 seat_reconfigure(struct server *server)