1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ui/aura/client/visibility_client.h"
6
7#include "ui/aura/window_event_dispatcher.h"
8#include "ui/aura/window_property.h"
9
10DECLARE_WINDOW_PROPERTY_TYPE(aura::client::VisibilityClient*)
11
12namespace aura {
13namespace client {
14
15// A property key to store a client that handles window visibility changes.
16DEFINE_LOCAL_WINDOW_PROPERTY_KEY(
17    VisibilityClient*, kWindowVisibilityClientKey, NULL);
18
19
20void SetVisibilityClient(Window* window, VisibilityClient* client) {
21  window->SetProperty(kWindowVisibilityClientKey, client);
22}
23
24VisibilityClient* GetVisibilityClient(Window* window) {
25  VisibilityClient* visibility_client = NULL;
26  aura::Window* current = window;
27  do {
28    visibility_client = current->GetProperty(kWindowVisibilityClientKey);
29    current = current->parent();
30  } while (current && !visibility_client);
31  return visibility_client;
32}
33
34}  // namespace client
35}  // namespace aura
36