xwm: do not include shadow in input region

The window frame was created with position and size which include
an offset for margins and shadow.  Set the input region to ignore
shadow.

[daniels: Fixed type mismatch, removed unused variable.]

Signed-off-by: Ian Ray <ian.ray@ge.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Tested-by: Scott Moreau <oreaus@gmail.com>

xwayland/window-manager.c

@@ -641,6 +641,20 @@ weston_wm_window_get_child_position(struct weston_wm_window *window,
 	}
 }
 
+static void
+weston_wm_window_get_input_rect(struct weston_wm_window *window,
+                               int32_t *x, int32_t *y,
+                               int32_t *width, int32_t *height)
+{
+       if (!window->decorate) {
+               weston_wm_window_get_child_position(window, x, y);
+               *width = window->width;
+               *height = window->height;
+       } else {
+               frame_input_rect(window->frame, x, y, width, height);
+       }
+}
+
 static void
 weston_wm_window_send_configure_notify(struct weston_wm_window *window)
 {
@@ -966,6 +980,7 @@ weston_wm_window_create_frame(struct weston_wm_window *window)
 {
 	struct weston_wm *wm = window->wm;
 	uint32_t values[3];
+	xcb_rectangle_t rect;
 	int x, y, width, height;
 	int buttons = FRAME_BUTTON_CLOSE;
 
@@ -1020,6 +1035,25 @@ weston_wm_window_create_frame(struct weston_wm_window *window)
 							     &wm->format_rgba,
 							     width, height);
 
+	weston_wm_window_get_input_rect(window, &x, &y, &width, &height);
+	rect.x = x;
+	rect.y = y;
+	rect.width = width;
+	rect.height = height;
+
+	/* The window frame was created with position and size which include
+	 * an offset for margins and shadow. Set the input region to ignore
+	 * shadow. */
+	xcb_shape_rectangles(wm->conn,
+			     XCB_SHAPE_SO_SET,
+			     XCB_SHAPE_SK_INPUT,
+			     0,
+			     window->frame_id,
+			     0,
+			     0,
+			     1,
+			     &rect);
+
 	hash_table_insert(wm->window_hash, window->frame_id, window);
 }