Send out coordinates with pointer_focus event

We can't rely on motion events happening right away, pointer_focus could
change because of windows coming or going etc.

TODO

@@ -1,7 +1,7 @@
 Core wayland protocol
 
- - enter notify needs coordinates for cases where pointer focus
-   changes without motion (surfaces coming or going)
+ - generate pointer_focus on raise/lower, move windows, all kinds of
+   changes in surface stacking.
 
  - generate marshal stubs as static inline functions.
 

clients/window.c

@@ -400,7 +400,8 @@ window_handle_key(void *data, struct wl_input_device *input_device,
 static void
 window_handle_pointer_focus(void *data,
 			    struct wl_input_device *input_device,
-			    uint32_t time, struct wl_surface *surface)
+			    uint32_t time, struct wl_surface *surface,
+			    int32_t x, int32_t y, int32_t sx, int32_t sy)
 {
 	struct input *input = data;
 

compositor.c

@@ -641,7 +641,9 @@ wlsc_input_device_set_keyboard_focus(struct wlsc_input_device *device,
 static void
 wlsc_input_device_set_pointer_focus(struct wlsc_input_device *device,
 				    struct wlsc_surface *surface,
-				    uint32_t time)
+				    uint32_t time,
+				    int32_t x, int32_t y,
+				    int32_t sx, int32_t sy)
 {
 	if (device->pointer_focus == surface)
 		return;
@@ -651,12 +653,13 @@ wlsc_input_device_set_pointer_focus(struct wlsc_input_device *device,
 		wl_surface_post_event(&device->pointer_focus->base,
 				      &device->base,
 				      WL_INPUT_DEVICE_POINTER_FOCUS,
-				      time, NULL);
+				      time, NULL, 0, 0, 0, 0);
 	if (surface)
 		wl_surface_post_event(&surface->base,
 				      &device->base,
 				      WL_INPUT_DEVICE_POINTER_FOCUS,
-				      time, &surface->base);
+				      time, &surface->base,
+				      x, y, sx, sy);
 
 	device->pointer_focus = surface;
 }
@@ -711,7 +714,8 @@ notify_motion(struct wlsc_input_device *device, uint32_t time, int x, int y)
 	case WLSC_DEVICE_GRAB_MOTION:
 		es = pick_surface(device, &sx, &sy);
 
-		wlsc_input_device_set_pointer_focus(device, es, time);
+		wlsc_input_device_set_pointer_focus(device, es,
+						    time, x, y, sx, sy);
 
 		if (es)
 			wl_surface_post_event(&es->base, &device->base,
@@ -806,6 +810,12 @@ notify_button(struct wlsc_input_device *device,
 		    (device->modifier_state & MODIFIER_SUPER))
 			shell_move(NULL, &compositor->shell,
 				   &surface->base, device, time);
+		else if (state && button == BTN_MIDDLE &&
+			 device->grab == WLSC_DEVICE_GRAB_MOTION &&
+			 (device->modifier_state & MODIFIER_SUPER))
+			shell_resize(NULL, &compositor->shell,
+				     &surface->base, device, time,
+				     WLSC_DEVICE_GRAB_RESIZE_BOTTOM_RIGHT);
 		else
 			wl_surface_post_event(&surface->base, &device->base,
 					      WL_INPUT_DEVICE_BUTTON,
@@ -896,7 +906,9 @@ handle_surface_destroy(struct wlsc_listener *listener,
 	if (device->pointer_focus == surface) {
 		device->grab = WLSC_DEVICE_GRAB_NONE;
 		focus = pick_surface(device, &sx, &sy);
-		wlsc_input_device_set_pointer_focus(device, focus, time);
+		wlsc_input_device_set_pointer_focus(device, focus, time,
+						    device->x, device->y,
+						    sx, sy);
 		fprintf(stderr, "lost pointer focus surface, reverting to %p\n", focus);
 	}
 }

protocol.xml

@@ -124,6 +124,10 @@
     <event name="pointer_focus">
       <arg name="time" type="uint"/>
       <arg name="surface" type="surface"/>
+      <arg name="x" type="int"/>
+      <arg name="y" type="int"/>
+      <arg name="surface_x" type="int"/>
+      <arg name="surface_y" type="int"/>
     </event>
 
     <event name="keyboard_focus">

wayland-client.c

@@ -81,8 +81,6 @@ struct wl_visual {
 
 struct wl_output {
 	struct wl_proxy proxy;
-	struct wl_listener listener;
-	int32_t width, height;
 };
 
 struct wl_shell {