Hide wayland cursor when X11 compositor loses focus

compositor-drm.c

@@ -678,6 +678,7 @@ drm_compositor_create(struct wl_display *display)
 				     WL_EVENT_READABLE, on_drm_input, ec);
 	setup_tty(ec, loop);
 	ec->base.present = drm_compositor_present;
+	ec->base.focus = 1;
 
 	return &ec->base;
 }

compositor-x11.c

@@ -346,7 +346,9 @@ x11_compositor_create_output(struct x11_compositor *c, int width, int height)
 		XCB_EVENT_MASK_BUTTON_RELEASE |
 		XCB_EVENT_MASK_POINTER_MOTION |
 		XCB_EVENT_MASK_EXPOSURE |
-		XCB_EVENT_MASK_STRUCTURE_NOTIFY,
+		XCB_EVENT_MASK_STRUCTURE_NOTIFY |
+		XCB_EVENT_MASK_ENTER_WINDOW |
+		XCB_EVENT_MASK_LEAVE_WINDOW,
 		0
 	};
 
@@ -559,6 +561,17 @@ x11_compositor_handle_event(int fd, uint32_t mask, void *data)
 			r->width = expose->width;
 			r->height = expose->height;
 			break;
+
+		case XCB_ENTER_NOTIFY:
+			c->base.focus = 1;
+			wlsc_compositor_schedule_repaint(&c->base);
+			break;
+
+		case XCB_LEAVE_NOTIFY:
+			c->base.focus = 0;
+			wlsc_compositor_schedule_repaint(&c->base);
+			break;
+
 		case XCB_CLIENT_MESSAGE:
 			client_message = (xcb_client_message_event_t *) event;
 			atom = client_message->data.data32[0];

compositor.c

@@ -375,6 +375,7 @@ wlsc_output_repaint(struct wlsc_output *output)
 	wl_list_for_each(es, &ec->surface_list, link)
 		wlsc_surface_draw(es, output);
 
+	if (ec->focus)
 		wl_list_for_each(eid, &ec->input_device_list, link)
 			wlsc_surface_draw(eid->sprite, output);
 }
@@ -398,7 +399,7 @@ repaint(void *data)
 	ec->repaint_needed = 0;
 }
 
-static void
+void
 wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
 {
 	compositor->repaint_needed = 1;

compositor.h

@@ -99,6 +99,7 @@ struct wlsc_compositor {
 	uint32_t current_frame;
 
 	uint32_t modifier_state;
+	uint32_t focus;
 
 	void (*present)(struct wlsc_compositor *c);
 };
@@ -131,8 +132,8 @@ notify_key(struct wlsc_input_device *device, uint32_t key, uint32_t state);
 
 void
 wlsc_compositor_finish_frame(struct wlsc_compositor *compositor, int msecs);
-struct wlsc_input_device *
+void
-wlsc_input_device_create(struct wlsc_compositor *ec);
+wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor);
 
 int
 wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display);