mash: Migrate tray audio and deps to common.

ash/system/audio/volume_view.cc

Index: ash/system/audio/volume_view.cc
diff --git a/ash/system/audio/volume_view.cc b/ash/system/audio/volume_view.cc
deleted file mode 100644
index b83600b2a408d0cc2b280e2a9f9750c620f20c53..0000000000000000000000000000000000000000
--- a/ash/system/audio/volume_view.cc
+++ /dev/null
@@ -1,287 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/system/audio/volume_view.h"
-
-#include "ash/common/ash_constants.h"
-#include "ash/common/system/tray/system_tray_item.h"
-#include "ash/common/system/tray/tray_constants.h"
-#include "ash/common/system/tray/tray_popup_item_container.h"
-#include "ash/shell.h"
-#include "ash/system/audio/tray_audio.h"
-#include "ash/system/audio/tray_audio_delegate.h"
-#include "grit/ash_resources.h"
-#include "grit/ash_strings.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/image/image_skia_operations.h"
-#include "ui/views/background.h"
-#include "ui/views/border.h"
-#include "ui/views/controls/button/image_button.h"
-#include "ui/views/controls/image_view.h"
-#include "ui/views/controls/separator.h"
-#include "ui/views/layout/box_layout.h"
-
-namespace {
-const int kVolumeImageWidth = 25;
-const int kVolumeImageHeight = 25;
-const int kSeparatorSize = 3;
-const int kSeparatorVerticalInset = 8;
-const int kSliderRightPaddingToVolumeViewEdge = 17;
-const int kExtraPaddingBetweenBarAndMore = 10;
-const int kExtraPaddingBetweenIconAndSlider = 8;
-const int kBoxLayoutPadding = 2;
-
-// IDR_AURA_UBER_TRAY_VOLUME_LEVELS contains 5 images,
-// The one for mute is at the 0 index and the other
-// four are used for ascending volume levels.
-const int kVolumeLevels = 4;
-
-}  // namespace
-
-namespace ash {
-namespace tray {
-
-class VolumeButton : public views::ToggleImageButton {
- public:
-   VolumeButton(views::ButtonListener* listener,
-                system::TrayAudioDelegate* audio_delegate)
-      : views::ToggleImageButton(listener),
-        audio_delegate_(audio_delegate),
-        image_index_(-1) {
-    SetImageAlignment(ALIGN_CENTER, ALIGN_MIDDLE);
-    image_ = ui::ResourceBundle::GetSharedInstance().GetImageNamed(
-        IDR_AURA_UBER_TRAY_VOLUME_LEVELS);
-    Update();
-  }
-
-  ~VolumeButton() override {}
-
-  void Update() {
-    float level =
-        static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f;
-    int image_index = audio_delegate_->IsOutputAudioMuted() ?
-        0 : (level == 1.0 ?
-             kVolumeLevels :
-             std::max(1, int(std::ceil(level * (kVolumeLevels - 1)))));
-    if (image_index != image_index_) {
-      gfx::Rect region(0, image_index * kVolumeImageHeight,
-                       kVolumeImageWidth, kVolumeImageHeight);
-      gfx::ImageSkia image_skia = gfx::ImageSkiaOperations::ExtractSubset(
-          *(image_.ToImageSkia()), region);
-      SetImage(views::CustomButton::STATE_NORMAL, &image_skia);
-      image_index_ = image_index;
-    }
-  }
-
- private:
-  // views::View:
-  gfx::Size GetPreferredSize() const override {
-    gfx::Size size = views::ToggleImageButton::GetPreferredSize();
-    size.set_height(kTrayPopupItemHeight);
-    return size;
-  }
-
-  // views::CustomButton:
-  void StateChanged() override {
-    if (state() == STATE_HOVERED || state() == STATE_PRESSED) {
-      set_background(
-          views::Background::CreateSolidBackground(kHoverBackgroundColor));
-    } else {
-      set_background(nullptr);
-    }
-  }
-
-  system::TrayAudioDelegate* audio_delegate_;
-  gfx::Image image_;
-  int image_index_;
-
-  DISALLOW_COPY_AND_ASSIGN(VolumeButton);
-};
-
-VolumeView::VolumeView(SystemTrayItem* owner,
-                       system::TrayAudioDelegate* audio_delegate,
-                       bool is_default_view)
-    : owner_(owner),
-      audio_delegate_(audio_delegate),
-      icon_(NULL),
-      slider_(NULL),
-      device_type_(NULL),
-      more_(NULL),
-      is_default_view_(is_default_view) {
-  SetFocusBehavior(FocusBehavior::NEVER);
-  views::BoxLayout* box_layout = new views::BoxLayout(
-      views::BoxLayout::kHorizontal, 0, 0, kBoxLayoutPadding);
-  box_layout->SetDefaultFlex(0);
-  SetLayoutManager(box_layout);
-
-  icon_ = new VolumeButton(this, audio_delegate_);
-  icon_->SetBorder(views::Border::CreateEmptyBorder(
-      0, kTrayPopupPaddingHorizontal, 0, kExtraPaddingBetweenIconAndSlider));
-  AddChildView(icon_);
-
-  slider_ = new views::Slider(this, views::Slider::HORIZONTAL);
-  slider_->set_focus_border_color(kFocusBorderColor);
-  slider_->SetValue(
-      static_cast<float>(audio_delegate_->GetOutputVolumeLevel()) / 100.0f);
-  slider_->SetAccessibleName(
-      ui::ResourceBundle::GetSharedInstance().GetLocalizedString(
-          IDS_ASH_STATUS_TRAY_VOLUME));
-  slider_->SetBorder(
-      views::Border::CreateEmptyBorder(0, 0, 0, kTrayPopupPaddingBetweenItems));
-  AddChildView(slider_);
-  box_layout->SetFlexForView(slider_, 1);
-
-  separator_ = new views::Separator(views::Separator::VERTICAL);
-  separator_->SetColor(kButtonStrokeColor);
-  separator_->SetPreferredSize(kSeparatorSize);
-  separator_->SetBorder(views::Border::CreateEmptyBorder(
-      kSeparatorVerticalInset, 0, kSeparatorVerticalInset, kBoxLayoutPadding));
-
-  more_region_ = new TrayPopupItemContainer(separator_, true, false);
-  more_region_->SetBorder(
-      views::Border::CreateEmptyBorder(0, 0, 0, kTrayPopupPaddingBetweenItems));
-  AddChildView(more_region_);
-
-  device_type_ = new views::ImageView;
-  more_region_->AddChildView(device_type_);
-
-  more_ = new views::ImageView;
-  more_->EnableCanvasFlippingForRTLUI(true);
-  more_->SetImage(ui::ResourceBundle::GetSharedInstance().GetImageNamed(
-      IDR_AURA_UBER_TRAY_MORE).ToImageSkia());
-  more_region_->AddChildView(more_);
-
-  set_background(views::Background::CreateSolidBackground(kBackgroundColor));
-
-  Update();
-}
-
-VolumeView::~VolumeView() {
-}
-
-void VolumeView::Update() {
-  icon_->Update();
-  slider_->UpdateState(!audio_delegate_->IsOutputAudioMuted());
-  UpdateDeviceTypeAndMore();
-  Layout();
-}
-
-void VolumeView::SetVolumeLevel(float percent) {
-  // Slider's value is in finer granularity than audio volume level(0.01),
-  // there will be a small discrepancy between slider's value and volume level
-  // on audio side. To avoid the jittering in slider UI, do not set change
-  // slider value if the change is less than 1%.
-  if (std::abs(percent-slider_->value()) < 0.01)
-    return;
-  slider_->SetValue(percent);
-  // It is possible that the volume was (un)muted, but the actual volume level
-  // did not change. In that case, setting the value of the slider won't
-  // trigger an update. So explicitly trigger an update.
-  Update();
-  slider_->set_enable_accessibility_events(true);
-}
-
-void VolumeView::UpdateDeviceTypeAndMore() {
-  bool show_more = is_default_view_ && TrayAudio::ShowAudioDeviceMenu() &&
-                   audio_delegate_->HasAlternativeSources();
-  slider_->SetBorder(views::Border::CreateEmptyBorder(
-      0, 0, 0, show_more ? kTrayPopupPaddingBetweenItems
-                         : kSliderRightPaddingToVolumeViewEdge));
-
-  if (!show_more) {
-    more_region_->SetVisible(false);
-    return;
-  }
-
-  // Show output device icon if necessary.
-  int device_icon = audio_delegate_->GetActiveOutputDeviceIconId();
-  if (device_icon != system::TrayAudioDelegate::kNoAudioDeviceIcon) {
-    device_type_->SetVisible(true);
-    device_type_->SetImage(
-        ui::ResourceBundle::GetSharedInstance().GetImageNamed(
-            device_icon).ToImageSkia());
-    more_region_->SetLayoutManager(new views::BoxLayout(
-        views::BoxLayout::kHorizontal, 0, 0, kTrayPopupPaddingBetweenItems));
-  } else {
-    device_type_->SetVisible(false);
-    more_region_->SetLayoutManager(new views::BoxLayout(
-        views::BoxLayout::kHorizontal, 0, 0,
-        kTrayPopupPaddingBetweenItems + kExtraPaddingBetweenBarAndMore));
-  }
-  more_region_->SetVisible(true);
-}
-
-void VolumeView::HandleVolumeUp(float level) {
-  audio_delegate_->SetOutputVolumeLevel(level);
-  if (audio_delegate_->IsOutputAudioMuted() &&
-      level > audio_delegate_->GetOutputDefaultVolumeMuteLevel()) {
-    audio_delegate_->SetOutputAudioIsMuted(false);
-  }
-}
-
-void VolumeView::HandleVolumeDown(float level) {
-  audio_delegate_->SetOutputVolumeLevel(level);
-  if (!audio_delegate_->IsOutputAudioMuted() &&
-      level <= audio_delegate_->GetOutputDefaultVolumeMuteLevel()) {
-    audio_delegate_->SetOutputAudioIsMuted(true);
-  } else if (audio_delegate_->IsOutputAudioMuted() &&
-             level > audio_delegate_->GetOutputDefaultVolumeMuteLevel()) {
-    audio_delegate_->SetOutputAudioIsMuted(false);
-  }
-}
-
-void VolumeView::ButtonPressed(views::Button* sender, const ui::Event& event) {
-  CHECK(sender == icon_);
-  bool mute_on = !audio_delegate_->IsOutputAudioMuted();
-  audio_delegate_->SetOutputAudioIsMuted(mute_on);
-  if (!mute_on)
-    audio_delegate_->AdjustOutputVolumeToAudibleLevel();
-  icon_->Update();
-}
-
-void VolumeView::SliderValueChanged(views::Slider* sender,
-                                    float value,
-                                    float old_value,
-                                    views::SliderChangeReason reason) {
-  if (reason == views::VALUE_CHANGED_BY_USER) {
-    float new_volume = value * 100.0f;
-    float current_volume = audio_delegate_->GetOutputVolumeLevel();
-    // Do not call change audio volume if the difference is less than
-    // 1%, which is beyond cras audio api's granularity for output volume.
-    if (std::abs(new_volume - current_volume) < 1.0f)
-      return;
-    Shell::GetInstance()->metrics()->RecordUserMetricsAction(
-        is_default_view_ ?
-        ash::UMA_STATUS_AREA_CHANGED_VOLUME_MENU :
-        ash::UMA_STATUS_AREA_CHANGED_VOLUME_POPUP);
-    if (new_volume > current_volume)
-      HandleVolumeUp(new_volume);
-    else
-      HandleVolumeDown(new_volume);
-  }
-  icon_->Update();
-}
-
-bool VolumeView::PerformAction(const ui::Event& event) {
-  if (!more_region_->visible())
-    return false;
-  owner_->TransitionDetailedView();
-  return true;
-}
-
-void VolumeView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
-  // Separator's prefered size is based on set bounds. When an empty bounds is
-  // set on first layout this causes BoxLayout to ignore the separator. Reset
-  // its height on each bounds change so that it is laid out properly.
-  separator_->SetSize(gfx::Size(kSeparatorSize, bounds().height()));
-}
-
-void VolumeView::GetAccessibleState(ui::AXViewState* state) {
-  // Intentionally overrides ActionableView, leaving |state| unset. A slider
-  // childview exposes accessibility data.
-}
-
-}  // namespace tray
-}  // namespace ash