ash/frame/caption_buttons/frame_caption_button_container_view.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_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
   6 #define ASH_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_
   7
   8 #include <map>
   9
  10 #include "ash/ash_export.h"
  11 #include "ash/frame/caption_buttons/frame_size_button_delegate.h"
  12 #include "ui/gfx/animation/animation_delegate.h"
  13 #include "ui/views/controls/button/button.h"
  14 #include "ui/views/view.h"
  15
  16 namespace gfx {
  17 class SlideAnimation;
  18 }
  19
  20 namespace views {
  21 class Widget;
  22 }
  23
  24 namespace ash {
  25
  26 // Container view for the frame caption buttons. It performs the appropriate
  27 // action when a caption button is clicked.
  28 class ASH_EXPORT FrameCaptionButtonContainerView
  29     : public views::View,
  30       public views::ButtonListener,
  31       public FrameSizeButtonDelegate,
  32       public gfx::AnimationDelegate {
  33  public:
  34   static const char kViewClassName[];
  35
  36   // |frame| is the views::Widget that the caption buttons act on.
  37   explicit FrameCaptionButtonContainerView(views::Widget* frame);
  38   ~FrameCaptionButtonContainerView() override;
  39
  40   // For testing.
  41   class ASH_EXPORT TestApi {
  42    public:
  43     explicit TestApi(FrameCaptionButtonContainerView* container_view)
  44         : container_view_(container_view) {
  45     }
  46
  47     void EndAnimations();
  48
  49     FrameCaptionButton* minimize_button() const {
  50       return container_view_->minimize_button_;
  51     }
  52
  53     FrameCaptionButton* size_button() const {
  54       return container_view_->size_button_;
  55     }
  56
  57     FrameCaptionButton* close_button() const {
  58       return container_view_->close_button_;
  59     }
  60
  61    private:
  62     FrameCaptionButtonContainerView* container_view_;
  63
  64     DISALLOW_COPY_AND_ASSIGN(TestApi);
  65   };
  66
  67   // Sets the resource ids of the images to paint the button for |icon|. The
  68   // FrameCaptionButtonContainerView will keep track of the images to use for
  69   // |icon| even if none of the buttons currently use |icon|.
  70   void SetButtonImages(CaptionButtonIcon icon,
  71                        int icon_image_id,
  72                        int hovered_background_image_id,
  73                        int pressed_background_image_id);
  74
  75   // Sets whether the buttons should be painted as active. Does not schedule
  76   // a repaint.
  77   void SetPaintAsActive(bool paint_as_active);
  78
  79   // Tell the window controls to reset themselves to the normal state.
  80   void ResetWindowControls();
  81
  82   // Determines the window HT* code for the caption button at |point|. Returns
  83   // HTNOWHERE if |point| is not over any of the caption buttons. |point| must
  84   // be in the coordinates of the FrameCaptionButtonContainerView.
  85   int NonClientHitTest(const gfx::Point& point) const;
  86
  87   // Updates the size button's visibility based on whether |frame_| can be
  88   // maximized and if maximize mode is enabled. A parent view should relayout
  89   // to reflect the change in visibility.
  90   void UpdateSizeButtonVisibility();
  91
  92   // views::View:
  93   gfx::Size GetPreferredSize() const override;
  94   void Layout() override;
  95   const char* GetClassName() const override;
  96
  97   // Overridden from gfx::AnimationDelegate:
  98   void AnimationEnded(const gfx::Animation* animation) override;
  99   void AnimationProgressed(const gfx::Animation* animation) override;
 100
 101  private:
 102   friend class FrameCaptionButtonContainerViewTest;
 103
 104   struct ButtonIconIds {
 105     ButtonIconIds();
 106     ButtonIconIds(int icon_id,
 107                   int hovered_background_id,
 108                   int pressed_background_id);
 109     ~ButtonIconIds();
 110
 111     int icon_image_id;
 112     int hovered_background_image_id;
 113     int pressed_background_image_id;
 114   };
 115
 116   // Sets |button|'s icon to |icon|. If |animate| is ANIMATE_YES, the button
 117   // will crossfade to the new icon. If |animate| is ANIMATE_NO and
 118   // |icon| == |button|->icon(), the crossfade animation is progressed to the
 119   // end.
 120   void SetButtonIcon(FrameCaptionButton* button,
 121                      CaptionButtonIcon icon,
 122                      Animate animate);
 123
 124   // Returns true if maximize mode is not enabled, and |frame_| widget delegate
 125   // can be maximized.
 126   bool ShouldSizeButtonBeVisible() const;
 127
 128   // views::ButtonListener:
 129   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 130
 131   // FrameSizeButtonDelegate:
 132   bool IsMinimizeButtonVisible() const override;
 133   void SetButtonsToNormal(Animate animate) override;
 134   void SetButtonIcons(CaptionButtonIcon minimize_button_icon,
 135                       CaptionButtonIcon close_button_icon,
 136                       Animate animate) override;
 137   const FrameCaptionButton* GetButtonClosestTo(
 138       const gfx::Point& position_in_screen) const override;
 139   void SetHoveredAndPressedButtons(const FrameCaptionButton* to_hover,
 140                                    const FrameCaptionButton* to_press) override;
 141
 142   // The widget that the buttons act on.
 143   views::Widget* frame_;
 144
 145   // The buttons. In the normal button style, at most one of |minimize_button_|
 146   // and |size_button_| is visible.
 147   FrameCaptionButton* minimize_button_;
 148   FrameCaptionButton* size_button_;
 149   FrameCaptionButton* close_button_;
 150
 151   // Mapping of the images needed to paint a button for each of the values of
 152   // CaptionButtonIcon.
 153   std::map<CaptionButtonIcon, ButtonIconIds> button_icon_id_map_;
 154
 155   // Animation that affects the position of |minimize_button_| and the
 156   // visibility of |size_button_|.
 157   scoped_ptr<gfx::SlideAnimation> maximize_mode_animation_;
 158
 159   DISALLOW_COPY_AND_ASSIGN(FrameCaptionButtonContainerView);
 160 };
 161
 162 }  // namespace ash
 163
 164 #endif  // ASH_FRAME_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_CONTAINER_VIEW_H_