tray_audio.cc revision c5cede9ae108bb15f6b7a8aea21c7e1fefa2834c 
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 {
43
44TrayAudio::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
53TrayAudio::~TrayAudio() {
54  Shell::GetInstance()->system_tray_notifier()->RemoveAudioObserver(this);
55}
56
57// static
58bool TrayAudio::ShowAudioDeviceMenu() {
59#if defined(OS_CHROMEOS)
60  return true;
61#else
62  return false;
63#endif
64}
65
66bool TrayAudio::GetInitialVisibility() {
67  return audio_delegate_->IsOutputAudioMuted();
68}
69
70views::View* TrayAudio::CreateDefaultView(user::LoginStatus status) {
71  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), true);
72  return volume_view_;
73}
74
75views::View* TrayAudio::CreateDetailedView(user::LoginStatus status) {
76  volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), false);
77  return volume_view_;
78}
79
80void TrayAudio::DestroyDefaultView() {
81  volume_view_ = NULL;
82}
83
84void TrayAudio::DestroyDetailedView() {
85  if (volume_view_) {
86    volume_view_ = NULL;
87    pop_up_volume_view_ = false;
88  }
89}
90
91bool TrayAudio::ShouldHideArrow() const {
92  return true;
93}
94
95bool TrayAudio::ShouldShowShelf() const {
96  return TrayAudio::ShowAudioDeviceMenu() && !pop_up_volume_view_;
97}
98
99void 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
114void 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
127void TrayAudio::OnAudioNodesChanged() {
128  Update();
129}
130
131void TrayAudio::OnActiveOutputNodeChanged() {
132  Update();
133}
134
135void TrayAudio::OnActiveInputNodeChanged() {
136  Update();
137}
138
139void 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
150