ash/wm/window_state_delegate.h

   1 // Copyright 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 #ifndef ASH_WM_WINDOW_STATE_DELEGATE_H_
   6 #define ASH_WM_WINDOW_STATE_DELEGATE_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "base/basictypes.h"
  10
  11 namespace ash {
  12 namespace wm {
  13 class WindowState;
  14
  15 class ASH_EXPORT WindowStateDelegate {
  16  public:
  17   WindowStateDelegate();
  18   virtual ~WindowStateDelegate();
  19
  20   // Invoked when the user uses Shift+F4/F4 to toggle the window fullscreen
  21   // state. If the window is not fullscreen and the window supports immersive
  22   // fullscreen ToggleFullscreen() should put the window into immersive
  23   // fullscreen instead of the default fullscreen type. The caller
  24   // (ash::wm::WindowState) falls backs to the default implementation if this
  25   // returns false.
  26   virtual bool ToggleFullscreen(WindowState* window_state);
  27
  28   // Invoked when workspace fullscreen state changes and a window may need to
  29   // reassert its always on top state. Returns true if delegate has handled this
  30   // and no additional work is needed, false otherwise.
  31   virtual bool RestoreAlwaysOnTop(WindowState* window_state);
  32
  33  private:
  34   DISALLOW_COPY_AND_ASSIGN(WindowStateDelegate);
  35 };
  36
  37 }  // namespace wm
  38 }  // namespace ash
  39
  40 #endif  // ASH_WM_WINDOW_STATE_DELEGATE_H_