tray_audio.cc revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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
42namespace ash {
43namespace internal {
44
45TrayAudio::TrayAudio(SystemTray* system_tray,
46                     scoped_ptr<system::TrayAudioDelegate> audio_delegate)
47    : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_VOLUME_MUTE),
48      audio_delegate_(audio_delegate.Pass()),
49      volume_view_(NULL),
50      pop_up_volume_view_(false) {
51  Shell::GetInstance()->system_tray_notifier()->AddAudioObserver(this);
52}
53
54TrayAudio::~TrayAudio() {
55  Shell::GetInstance()->system_tray_notifier()->RemoveAudioObserver(this);
56}
57
58// static
59bool TrayAudio::ShowAudioDeviceMenu() {
60#if defined(OS_CHROMEOS)
61  return true;
62#else
63  return false;
64#endif
65}
66
67bool TrayAudio::GetInitialVisibility() {
68  return audio_delegate_->IsOutputAudioMuted();
69}
70
71views::View* TrayAudio::CreateDefaultView(user::LoginStatus status) {
72  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), true);
73  return volume_view_;
74}
75
76views::View* TrayAudio::CreateDetailedView(user::LoginStatus status) {
77  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), false);
78  return volume_view_;
79}
80
81void TrayAudio::DestroyDefaultView() {
82  volume_view_ = NULL;
83}
84
85void TrayAudio::DestroyDetailedView() {
86  if (volume_view_) {
87    volume_view_ = NULL;
88    pop_up_volume_view_ = false;
89  }
90}
91
92bool TrayAudio::ShouldHideArrow() const {
93  return true;
94}
95
96bool TrayAudio::ShouldShowShelf() const {
97  return TrayAudio::ShowAudioDeviceMenu() && !pop_up_volume_view_;
98}
99
100void TrayAudio::OnOutputVolumeChanged() {
101  float percent =
102      static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f;
103  if (tray_view())
104    tray_view()->SetVisible(GetInitialVisibility());
105
106  if (volume_view_) {
107    volume_view_->SetVolumeLevel(percent);
108    SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
109    return;
110  }
111  pop_up_volume_view_ = true;
112  PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
113}
114
115void TrayAudio::OnOutputMuteChanged() {
116  if (tray_view())
117      tray_view()->SetVisible(GetInitialVisibility());
118
119  if (volume_view_) {
120    volume_view_->Update();
121    SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
122  } else {
123    pop_up_volume_view_ = true;
124    PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
125  }
126}
127
128void TrayAudio::OnAudioNodesChanged() {
129  Update();
130}
131
132void TrayAudio::OnActiveOutputNodeChanged() {
133  Update();
134}
135
136void TrayAudio::OnActiveInputNodeChanged() {
137  Update();
138}
139
140void TrayAudio::Update() {
141  if (tray_view())
142      tray_view()->SetVisible(GetInitialVisibility());
143  if (volume_view_) {
144    volume_view_->SetVolumeLevel(
145        static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f);
146    volume_view_->Update();
147  }
148}
149
150}  // namespace internal
151}  // namespace ash
152