tray_audio.cc revision 6e8cce623b6e4fe0c9e4af605d675dd9d0338c38 
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/gfx/canvas.h"
30#include "ui/gfx/font_list.h"
31#include "ui/gfx/image/image.h"
32#include "ui/gfx/image/image_skia_operations.h"
33#include "ui/views/controls/button/image_button.h"
34#include "ui/views/controls/image_view.h"
35#include "ui/views/controls/label.h"
36#include "ui/views/controls/slider.h"
37#include "ui/views/layout/box_layout.h"
38#include "ui/views/view.h"
39
40namespace ash {
41
42TrayAudio::TrayAudio(SystemTray* system_tray,
43                     scoped_ptr<system::TrayAudioDelegate> audio_delegate)
44    : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_VOLUME_MUTE),
45      audio_delegate_(audio_delegate.Pass()),
46      volume_view_(NULL),
47      pop_up_volume_view_(false) {
48  Shell::GetInstance()->system_tray_notifier()->AddAudioObserver(this);
49}
50
51TrayAudio::~TrayAudio() {
52  Shell::GetInstance()->system_tray_notifier()->RemoveAudioObserver(this);
53}
54
55// static
56bool TrayAudio::ShowAudioDeviceMenu() {
57#if defined(OS_CHROMEOS)
58  return true;
59#else
60  return false;
61#endif
62}
63
64bool TrayAudio::GetInitialVisibility() {
65  return audio_delegate_->IsOutputAudioMuted();
66}
67
68views::View* TrayAudio::CreateDefaultView(user::LoginStatus status) {
69  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), true);
70  return volume_view_;
71}
72
73views::View* TrayAudio::CreateDetailedView(user::LoginStatus status) {
74  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), false);
75  return volume_view_;
76}
77
78void TrayAudio::DestroyDefaultView() {
79  volume_view_ = NULL;
80}
81
82void TrayAudio::DestroyDetailedView() {
83  if (volume_view_) {
84    volume_view_ = NULL;
85    pop_up_volume_view_ = false;
86  }
87}
88
89bool TrayAudio::ShouldHideArrow() const {
90  return true;
91}
92
93bool TrayAudio::ShouldShowShelf() const {
94  return TrayAudio::ShowAudioDeviceMenu() && !pop_up_volume_view_;
95}
96
97void TrayAudio::OnOutputVolumeChanged() {
98  float percent =
99      static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f;
100  if (tray_view())
101    tray_view()->SetVisible(GetInitialVisibility());
102
103  if (volume_view_) {
104    volume_view_->SetVolumeLevel(percent);
105    SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
106    return;
107  }
108  pop_up_volume_view_ = true;
109  PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
110}
111
112void TrayAudio::OnOutputMuteChanged() {
113  if (tray_view())
114      tray_view()->SetVisible(GetInitialVisibility());
115
116  if (volume_view_) {
117    volume_view_->Update();
118    SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
119  } else {
120    pop_up_volume_view_ = true;
121    PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
122  }
123}
124
125void TrayAudio::OnAudioNodesChanged() {
126  Update();
127}
128
129void TrayAudio::OnActiveOutputNodeChanged() {
130  Update();
131}
132
133void TrayAudio::OnActiveInputNodeChanged() {
134  Update();
135}
136
137void TrayAudio::Update() {
138  if (tray_view())
139      tray_view()->SetVisible(GetInitialVisibility());
140  if (volume_view_) {
141    volume_view_->SetVolumeLevel(
142        static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f);
143    volume_view_->Update();
144  }
145}
146
147}  // namespace ash
148