ui/aura/client/activation_delegate.h

   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 UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_
   6 #define UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_
   7
   8 #include "ui/aura/aura_export.h"
   9
  10 namespace ui {
  11 class Event;
  12 }
  13
  14 namespace aura {
  15 class Window;
  16 namespace client {
  17
  18 // An interface implemented by an object that configures and responds to changes
  19 // to a window's activation state.
  20 class AURA_EXPORT ActivationDelegate {
  21  public:
  22   // Returns true if the window should be activated.
  23   virtual bool ShouldActivate() const = 0;
  24
  25  protected:
  26   virtual ~ActivationDelegate() {}
  27 };
  28
  29 // Sets/Gets the ActivationDelegate on the Window. No ownership changes.
  30 AURA_EXPORT void SetActivationDelegate(Window* window,
  31                                        ActivationDelegate* delegate);
  32 AURA_EXPORT ActivationDelegate* GetActivationDelegate(Window* window);
  33
  34 }  // namespace client
  35 }  // namespace aura
  36
  37 #endif  // UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_