Allow programmatically closing xwayland window

libweston-desktop/xwayland.c

@@ -193,6 +193,17 @@ weston_desktop_xwayland_surface_destroy(struct weston_desktop_surface *dsurface,
 	free(surface);
 }
 
+static void
+weston_desktop_xwayland_surface_close(struct weston_desktop_surface *dsurface,
+					void *user_data)
+{
+	struct weston_desktop_xwayland_surface *surface = user_data;
+	struct weston_surface *wsurface =
+		weston_desktop_surface_get_surface(surface->surface);
+
+	surface->client_interface->send_close(wsurface);
+}
+
 static bool
 weston_desktop_xwayland_surface_get_maximized(struct weston_desktop_surface *dsurface,
 					      void *user_data)
@@ -219,6 +230,7 @@ static const struct weston_desktop_surface_implementation weston_desktop_xwaylan
 	.get_fullscreen = weston_desktop_xwayland_surface_get_fullscreen,
 
 	.destroy = weston_desktop_xwayland_surface_destroy,
+	.close = weston_desktop_xwayland_surface_close,
 };
 
 static void

xwayland/window-manager.c

@@ -2783,6 +2783,16 @@ send_configure(struct weston_surface *surface, int32_t width, int32_t height)
 				       weston_wm_window_configure, window);
 }
 
+static void
+send_close(struct weston_surface *surface)
+{
+	struct weston_wm_window *window = get_wm_window(surface);
+	if (!window || !window->wm)
+		return;
+	weston_wm_window_close(window, XCB_CURRENT_TIME);
+	xcb_flush(window->wm->conn);
+}
+
 static void
 send_position(struct weston_surface *surface, int32_t x, int32_t y)
 {
@@ -2812,6 +2822,7 @@ send_position(struct weston_surface *surface, int32_t x, int32_t y)
 
 static const struct weston_xwayland_client_interface shell_client = {
 	send_configure,
+	send_close,
 };
 
 static int

xwayland/xwayland-internal-interface.h

@@ -31,6 +31,7 @@ struct weston_desktop_xwayland_surface;
 
 struct weston_xwayland_client_interface {
 	void (*send_configure)(struct weston_surface *surface, int32_t width, int32_t height);
+	void (*send_close)(struct weston_surface *surface);
 };
 
 struct weston_desktop_xwayland_interface {