ash/launcher/tabbed_launcher_button.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 ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_
   6 #define ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_
   7
   8 #include "ash/launcher/launcher_button.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/timer.h"
  11 #include "ui/base/animation/animation_delegate.h"
  12 #include "ui/views/controls/button/image_button.h"
  13 #include "ui/views/controls/glow_hover_controller.h"
  14
  15 namespace gfx {
  16 class ImageSkia;
  17 }
  18
  19 namespace ui {
  20 class MultiAnimation;
  21 }
  22
  23 namespace ash {
  24
  25 struct LauncherItem;
  26
  27 namespace internal {
  28
  29 // Button used for items on the launcher corresponding to tabbed windows.
  30 class TabbedLauncherButton : public LauncherButton {
  31  public:
  32   // Indicates if this button is incognito or not.
  33   enum IncognitoState {
  34     STATE_INCOGNITO,
  35     STATE_NOT_INCOGNITO,
  36   };
  37
  38   static TabbedLauncherButton* Create(views::ButtonListener* listener,
  39                                       LauncherButtonHost* host,
  40                                       ShelfLayoutManager* shelf_layout_manager,
  41                                       IncognitoState is_incognito);
  42   virtual ~TabbedLauncherButton();
  43
  44   // Sets the images to display for this entry.
  45   void SetTabImage(const gfx::ImageSkia& image);
  46
  47   // This only defines how the icon is drawn. Do not use it for other purposes.
  48   IncognitoState is_incognito() const { return is_incognito_; }
  49
  50  protected:
  51   TabbedLauncherButton(views::ButtonListener* listener,
  52                        LauncherButtonHost* host,
  53                        ShelfLayoutManager* shelf_layout_manager,
  54                        IncognitoState is_incognito);
  55   // View override.
  56   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
  57
  58   // LauncherButton override.
  59   virtual IconView* CreateIconView() OVERRIDE;
  60
  61  private:
  62   // Used as the delegate for |animation_|.
  63   class IconView : public LauncherButton::IconView,
  64                    public ui::AnimationDelegate {
  65    public:
  66     explicit IconView(TabbedLauncherButton* host);
  67     virtual ~IconView();
  68
  69     // ui::AnimationDelegateImpl overrides:
  70     virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
  71     virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
  72
  73     // Sets the image to display for this entry.
  74     void SetTabImage(const gfx::ImageSkia& image);
  75
  76    protected:
  77     // View override.
  78     virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
  79
  80    private:
  81     TabbedLauncherButton* host_;
  82     gfx::ImageSkia image_;
  83     gfx::ImageSkia animating_image_;
  84
  85     // Used to animate image.
  86     scoped_ptr<ui::MultiAnimation> animation_;
  87
  88     // Background images. Which one is chosen depends on the type of the window.
  89     static const gfx::ImageSkia* browser_image_;
  90     static const gfx::ImageSkia* incognito_browser_image_;
  91     // TODO[dave] implement panel specific image.
  92     static const gfx::ImageSkia* browser_panel_image_;
  93     static const gfx::ImageSkia* incognito_browser_panel_image_;
  94
  95     DISALLOW_COPY_AND_ASSIGN(IconView);
  96   };
  97
  98   IconView* tabbed_icon_view() {
  99     return static_cast<IconView*>(icon_view());
 100   }
 101
 102   // Indicates how the icon is drawn. If true an Incognito symbol will be
 103   // drawn. It does not necessarily indicate if the window is 'incognito'.
 104   const IncognitoState is_incognito_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(TabbedLauncherButton);
 107 };
 108
 109 }  // namespace internal
 110 }  // namespace ash
 111
 112 #endif  // ASH_LAUNCHER_TABBED_LAUNCHER_BUTTON_H_