Home | History | Annotate | Download | only in audio 
      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_SYSTEM_AUDIO_VOLUME_VIEW_H_
      6 #define ASH_SYSTEM_AUDIO_VOLUME_VIEW_H_
      7 
      8 #include "ash/system/tray/actionable_view.h"
      9 #include "ui/gfx/font.h"
     10 #include "ui/views/controls/button/button.h"
     11 #include "ui/views/controls/slider.h"
     12 
     13 namespace views {
     14 class View;
     15 class ImageView;
     16 }
     17 
     18 namespace ash {
     19 class HoverHighlightView;
     20 class SystemTrayItem;
     21 
     22 namespace system {
     23 class TrayAudioDelegate;
     24 }
     25 
     26 namespace tray {
     27 class BarSeparator;
     28 class VolumeButton;
     29 class VolumeSlider;
     30 
     31 class VolumeView : public ActionableView,
     32                    public views::ButtonListener,
     33                    public views::SliderListener {
     34  public:
     35   VolumeView(SystemTrayItem* owner,
     36              system::TrayAudioDelegate* audio_delegate,
     37              bool is_default_view);
     38 
     39   virtual ~VolumeView();
     40 
     41   void Update();
     42 
     43   // Sets volume level on slider_, |percent| is ranged from [0.00] to [1.00].
     44   void SetVolumeLevel(float percent);
     45 
     46  private:
     47   // Updates bar_, device_type_ icon, and more_ buttons.
     48   void UpdateDeviceTypeAndMore();
     49   void HandleVolumeUp(float percent);
     50   void HandleVolumeDown(float percent);
     51 
     52   // Overridden from views::View.
     53   virtual void Layout() OVERRIDE;
     54 
     55   // Overridden from views::ButtonListener.
     56   virtual void ButtonPressed(views::Button* sender,
     57                              const ui::Event& event) OVERRIDE;
     58 
     59   // Overridden from views::SliderListener.
     60   virtual void SliderValueChanged(views::Slider* sender,
     61                                   float value,
     62                                   float old_value,
     63                                   views::SliderChangeReason reason) OVERRIDE;
     64 
     65   // Overriden from ActionableView.
     66   virtual bool PerformAction(const ui::Event& event) OVERRIDE;
     67 
     68   SystemTrayItem* owner_;
     69   system::TrayAudioDelegate* audio_delegate_;
     70   VolumeButton* icon_;
     71   VolumeSlider* slider_;
     72   BarSeparator* bar_;
     73   views::ImageView* device_type_;
     74   views::ImageView* more_;
     75   bool is_default_view_;
     76 
     77   DISALLOW_COPY_AND_ASSIGN(VolumeView);
     78 };
     79 
     80 }  // namespace tray
     81 }  // namespace ash
     82 
     83 #endif  // ASH_SYSTEM_AUDIO_VOLUME_VIEW_H_
     84 
     85