ash/wm/overview/transparent_activate_window_button.h

   1 // Copyright 2014 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_OVERVIEW_TRANSPARENT_ACTIVATE_WINDOW_BUTTON_H_
   6 #define ASH_WM_OVERVIEW_TRANSPARENT_ACTIVATE_WINDOW_BUTTON_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/string16.h"
  11 #include "ui/gfx/geometry/rect.h"
  12
  13 namespace aura {
  14 class Window;
  15 }  // namespace aura
  16
  17 namespace views {
  18 class Button;
  19 class Widget;
  20 }  // namespace views
  21
  22 namespace ash {
  23
  24 class TransparentActivateWindowButtonDelegate;
  25
  26 // Transparent window that covers window selector items and handles mouse and
  27 // gestures on overview mode for them.
  28 class TransparentActivateWindowButton {
  29  public:
  30   TransparentActivateWindowButton(
  31       aura::Window* root_window,
  32       TransparentActivateWindowButtonDelegate* delegate);
  33   ~TransparentActivateWindowButton();
  34
  35   // Sets the accessibility name.
  36   void SetAccessibleName(const base::string16& name);
  37
  38   // Sets the bounds of the transparent window.
  39   void SetBounds(const gfx::Rect& bounds);
  40
  41   // Sends an accessibility focus alert so that if chromevox is enabled, the
  42   // window title is read.
  43   void SendFocusAlert() const;
  44
  45   // Stacks |this| above |activate_button| in the window z-ordering.
  46   void StackAbove(TransparentActivateWindowButton* activate_button);
  47
  48  private:
  49   // The transparent window event handler widget itself.
  50   scoped_ptr<views::Widget> event_handler_widget_;
  51
  52   // The transparent button view that handles user input. Not owned.
  53   views::Button* transparent_button_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(TransparentActivateWindowButton);
  56 };
  57
  58 }  // namespace ash
  59
  60 #endif  // ASH_WM_OVERVIEW_TRANSPARENT_ACTIVATE_WINDOW_BUTTON_H_