window_watcher.h revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
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#ifndef ASH_SHELL_WINDOW_WATCHER_H_
6#define ASH_SHELL_WINDOW_WATCHER_H_
7
8#include <map>
9
10#include "ash/shelf/shelf_item_types.h"
11#include "base/compiler_specific.h"
12#include "base/logging.h"
13#include "base/memory/scoped_ptr.h"
14#include "ui/aura/window_observer.h"
15#include "ui/gfx/display_observer.h"
16
17namespace aura {
18class Window;
19}
20
21namespace ash {
22namespace shell {
23
24// TODO(sky): fix this class, its a bit broke with workspace2.
25
26// WindowWatcher is responsible for listening for newly created windows and
27// creating items on the Shelf for them.
28class WindowWatcher : public aura::WindowObserver,
29                      public gfx::DisplayObserver {
30 public:
31  WindowWatcher();
32  virtual ~WindowWatcher();
33
34  aura::Window* GetWindowByID(ash::ShelfID id);
35
36  // aura::WindowObserver overrides:
37  virtual void OnWindowAdded(aura::Window* new_window) OVERRIDE;
38  virtual void OnWillRemoveWindow(aura::Window* window) OVERRIDE;
39
40  // gfx::DisplayObserver overrides:
41  virtual void OnDisplayAdded(const gfx::Display& new_display) OVERRIDE;
42  virtual void OnDisplayRemoved(const gfx::Display& old_display) OVERRIDE;
43  virtual void OnDisplayMetricsChanged(const gfx::Display& display,
44                                       uint32_t metrics) OVERRIDE;
45
46 private:
47  class WorkspaceWindowWatcher;
48
49  typedef std::map<ash::ShelfID, aura::Window*> IDToWindow;
50
51  // Maps from window to the id we gave it.
52  IDToWindow id_to_window_;
53
54  scoped_ptr<WorkspaceWindowWatcher> workspace_window_watcher_;
55
56  DISALLOW_COPY_AND_ASSIGN(WindowWatcher);
57};
58
59}  // namespace shell
60}  // namespace ash
61
62#endif  // ASH_SHELL_WINDOW_WATCHER_H_
63