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