ui/aura/client/screen_position_client.cc

   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/screen_position_client.h"
   6
   7 #include "ui/aura/window_event_dispatcher.h"
   8 #include "ui/aura/window_property.h"
   9
  10 DECLARE_WINDOW_PROPERTY_TYPE(aura::client::ScreenPositionClient*)
  11
  12 namespace aura {
  13 namespace client {
  14
  15 DEFINE_LOCAL_WINDOW_PROPERTY_KEY(ScreenPositionClient*,
  16                                  kScreenPositionClientKey,
  17                                  NULL);
  18
  19 void SetScreenPositionClient(Window* root_window,
  20                              ScreenPositionClient* client) {
  21   DCHECK_EQ(root_window->GetRootWindow(), root_window);
  22   root_window->SetProperty(kScreenPositionClientKey, client);
  23 }
  24
  25 ScreenPositionClient* GetScreenPositionClient(const Window* root_window) {
  26   if (root_window)
  27     DCHECK_EQ(root_window->GetRootWindow(), root_window);
  28   return root_window ?
  29       root_window->GetProperty(kScreenPositionClientKey) : NULL;
  30 }
  31
  32 }  // namespace client
  33 }  // namespace aura