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      1 // Copyright (c) 2013 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/window_tree_client.h"
      6 
      7 #include "ui/aura/env.h"
      8 #include "ui/aura/window_event_dispatcher.h"
      9 #include "ui/aura/window_property.h"
     10 
     11 DECLARE_WINDOW_PROPERTY_TYPE(aura::client::WindowTreeClient*)
     12 
     13 namespace aura {
     14 namespace client {
     15 
     16 DEFINE_WINDOW_PROPERTY_KEY(
     17     WindowTreeClient*, kRootWindowWindowTreeClientKey, NULL);
     18 
     19 void SetWindowTreeClient(Window* window, WindowTreeClient* window_tree_client) {
     20   DCHECK(window);
     21 
     22   Window* root_window = window->GetRootWindow();
     23   DCHECK(root_window);
     24   root_window->SetProperty(kRootWindowWindowTreeClientKey, window_tree_client);
     25 }
     26 
     27 WindowTreeClient* GetWindowTreeClient(Window* window) {
     28   DCHECK(window);
     29   Window* root_window = window->GetRootWindow();
     30   DCHECK(root_window);
     31   WindowTreeClient* client =
     32       root_window->GetProperty(kRootWindowWindowTreeClientKey);
     33   DCHECK(client);
     34   return client;
     35 }
     36 
     37 void ParentWindowWithContext(Window* window,
     38                              Window* context,
     39                              const gfx::Rect& screen_bounds) {
     40   DCHECK(context);
     41 
     42   // |context| must be attached to a hierarchy with a WindowTreeClient.
     43   WindowTreeClient* client = GetWindowTreeClient(context);
     44   DCHECK(client);
     45   Window* default_parent =
     46       client->GetDefaultParent(context, window, screen_bounds);
     47   default_parent->AddChild(window);
     48 }
     49 
     50 }  // namespace client
     51 }  // namespace aura
     52