ash/system/audio/tray_audio.cc

   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 #include "ash/system/audio/tray_audio.h"
   6
   7 #include <cmath>
   8
   9 #include "ash/ash_constants.h"
  10 #include "ash/metrics/user_metrics_recorder.h"
  11 #include "ash/shell.h"
  12 #include "ash/system/audio/tray_audio_delegate.h"
  13 #include "ash/system/audio/volume_view.h"
  14 #include "ash/system/tray/actionable_view.h"
  15 #include "ash/system/tray/fixed_sized_scroll_view.h"
  16 #include "ash/system/tray/hover_highlight_view.h"
  17 #include "ash/system/tray/system_tray.h"
  18 #include "ash/system/tray/system_tray_delegate.h"
  19 #include "ash/system/tray/system_tray_notifier.h"
  20 #include "ash/system/tray/tray_constants.h"
  21 #include "ash/volume_control_delegate.h"
  22 #include "base/strings/utf_string_conversions.h"
  23 #include "grit/ash_resources.h"
  24 #include "grit/ash_strings.h"
  25 #include "third_party/skia/include/core/SkCanvas.h"
  26 #include "third_party/skia/include/core/SkPaint.h"
  27 #include "third_party/skia/include/core/SkRect.h"
  28 #include "third_party/skia/include/effects/SkGradientShader.h"
  29 #include "ui/base/l10n/l10n_util.h"
  30 #include "ui/base/resource/resource_bundle.h"
  31 #include "ui/gfx/canvas.h"
  32 #include "ui/gfx/font_list.h"
  33 #include "ui/gfx/image/image.h"
  34 #include "ui/gfx/image/image_skia_operations.h"
  35 #include "ui/views/controls/button/image_button.h"
  36 #include "ui/views/controls/image_view.h"
  37 #include "ui/views/controls/label.h"
  38 #include "ui/views/controls/slider.h"
  39 #include "ui/views/layout/box_layout.h"
  40 #include "ui/views/view.h"
  41
  42 namespace ash {
  43
  44 TrayAudio::TrayAudio(SystemTray* system_tray,
  45                      scoped_ptr<system::TrayAudioDelegate> audio_delegate)
  46     : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_VOLUME_MUTE),
  47       audio_delegate_(audio_delegate.Pass()),
  48       volume_view_(NULL),
  49       pop_up_volume_view_(false) {
  50   Shell::GetInstance()->system_tray_notifier()->AddAudioObserver(this);
  51 }
  52
  53 TrayAudio::~TrayAudio() {
  54   Shell::GetInstance()->system_tray_notifier()->RemoveAudioObserver(this);
  55 }
  56
  57 // static
  58 bool TrayAudio::ShowAudioDeviceMenu() {
  59 #if defined(OS_CHROMEOS)
  60   return true;
  61 #else
  62   return false;
  63 #endif
  64 }
  65
  66 bool TrayAudio::GetInitialVisibility() {
  67   return audio_delegate_->IsOutputAudioMuted();
  68 }
  69
  70 views::View* TrayAudio::CreateDefaultView(user::LoginStatus status) {
  71   volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), true);
  72   return volume_view_;
  73 }
  74
  75 views::View* TrayAudio::CreateDetailedView(user::LoginStatus status) {
  76   volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), false);
  77   return volume_view_;
  78 }
  79
  80 void TrayAudio::DestroyDefaultView() {
  81   volume_view_ = NULL;
  82 }
  83
  84 void TrayAudio::DestroyDetailedView() {
  85   if (volume_view_) {
  86     volume_view_ = NULL;
  87     pop_up_volume_view_ = false;
  88   }
  89 }
  90
  91 bool TrayAudio::ShouldHideArrow() const {
  92   return true;
  93 }
  94
  95 bool TrayAudio::ShouldShowShelf() const {
  96   return TrayAudio::ShowAudioDeviceMenu() && !pop_up_volume_view_;
  97 }
  98
  99 void TrayAudio::OnOutputVolumeChanged() {
 100   float percent =
 101       static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f;
 102   if (tray_view())
 103     tray_view()->SetVisible(GetInitialVisibility());
 104
 105   if (volume_view_) {
 106     volume_view_->SetVolumeLevel(percent);
 107     SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
 108     return;
 109   }
 110   pop_up_volume_view_ = true;
 111   PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
 112 }
 113
 114 void TrayAudio::OnOutputMuteChanged() {
 115   if (tray_view())
 116       tray_view()->SetVisible(GetInitialVisibility());
 117
 118   if (volume_view_) {
 119     volume_view_->Update();
 120     SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
 121   } else {
 122     pop_up_volume_view_ = true;
 123     PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
 124   }
 125 }
 126
 127 void TrayAudio::OnAudioNodesChanged() {
 128   Update();
 129 }
 130
 131 void TrayAudio::OnActiveOutputNodeChanged() {
 132   Update();
 133 }
 134
 135 void TrayAudio::OnActiveInputNodeChanged() {
 136   Update();
 137 }
 138
 139 void TrayAudio::Update() {
 140   if (tray_view())
 141       tray_view()->SetVisible(GetInitialVisibility());
 142   if (volume_view_) {
 143     volume_view_->SetVolumeLevel(
 144         static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f);
 145     volume_view_->Update();
 146   }
 147 }
 148
 149 }  // namespace ash