SV Test

ash/system/fractional_view/scale_view.cc

+// Copyright 2017 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/fractional_view/scale_view.h"
+
+#include <algorithm>
+
+#include "ash/resources/vector_icons/vector_icons.h"
+#include "ash/shell.h"
+#include "ash/shell_port.h"
+#include "ash/strings/grit/ash_strings.h"
+#include "ash/system/tray/actionable_view.h"
+#include "ash/system/tray/system_tray_item.h"
+#include "ash/system/tray/tray_constants.h"
+#include "ash/system/tray/tray_popup_utils.h"
+#include "ash/system/tray/tri_view.h"
+#include "base/command_line.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chromeos/audio/cras_audio_handler.h"
+#include "ui/accessibility/ax_node_data.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/display/display.h"
+#include "ui/display/display_switches.h"
+#include "ui/display/manager/display_manager.h"
+#include "ui/gfx/paint_vector_icon.h"
+#include "ui/views/background.h"
+#include "ui/views/border.h"
+#include "ui/views/controls/button/custom_button.h"
+#include "ui/views/controls/image_view.h"
+#include "ui/views/controls/label.h"
+#include "ui/views/controls/slider.h"
+#include "ui/views/layout/fill_layout.h"
+
+using chromeos::CrasAudioHandler;
+
+namespace ash {
+namespace tray {
+namespace {
+
+std::string GetStringValue(double value) {
+  std::string str_value = base::DoubleToString(value);
+  if (str_value.length() > 4)
+    str_value.erase(str_value.begin() + 4, str_value.end());
+  return str_value;
+}
+
+}  // namespace
+
+ScaleView::ScaleView(SystemTrayItem* owner, bool is_default_view)
+    : owner_(owner),
+      tri_view_(TrayPopupUtils::CreateMultiTargetRowView()),
+      more_button_(nullptr),
+      label_(nullptr),
+      slider_(nullptr),
+      is_default_view_(is_default_view) {
+  SetLayoutManager(new views::FillLayout);
+  AddChildView(tri_view_);
+
+  label_ = new views::Label(base::UTF8ToUTF16(
+      GetStringValue(display::Display::GetForcedDeviceScaleFactor())));
+  tri_view_->AddView(TriView::Container::START, label_);
+
+  slider_ = TrayPopupUtils::CreateSlider(this);
+  slider_->SetValue((display::Display::GetForcedDeviceScaleFactor() - 1.f) / 2);
+  slider_->SetAccessibleName(
+      l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_VOLUME));
+  tri_view_->AddView(TriView::Container::CENTER, slider_);
+
+  // set_background(views::Background::CreateSolidBackground(kBackgroundColor));
+
+  if (!is_default_view_) {
+    tri_view_->SetContainerVisible(TriView::Container::END, false);
+    Update();
+    return;
+  }
+
+  more_button_ = new ButtonListenerActionableView(
+      owner_, TrayPopupInkDropStyle::INSET_BOUNDS, this);
+  TrayPopupUtils::ConfigureContainer(TriView::Container::END, more_button_);
+
+  more_button_->SetInkDropMode(views::InkDropHostView::InkDropMode::ON);
+  more_button_->SetBorder(
+      views::CreateEmptyBorder(gfx::Insets(0, kTrayPopupButtonEndMargin)));
+  tri_view_->AddView(TriView::Container::END, more_button_);
+
+  more_button_->AddChildView(TrayPopupUtils::CreateMoreImageView());
+  more_button_->SetAccessibleName(
+      l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_AUDIO));
+  Update();
+}
+
+ScaleView::~ScaleView() {}
+
+void ScaleView::Update() {
+  slider_->UpdateState(!CrasAudioHandler::Get()->IsOutputMuted());
+  Layout();
+}
+
+void ScaleView::ButtonPressed(views::Button* sender, const ui::Event& event) {
+  if (sender == more_button_)
+    owner_->TransitionDetailedView();
+}
+
+void ScaleView::SliderValueChanged(views::Slider* sender,
+                                   float value,
+                                   float old_value,
+                                   views::SliderChangeReason reason) {
+  if (reason == views::VALUE_CHANGED_BY_USER) {
+    float new_scale = 1.f + value * 2.0f;
+    std::string str_value = GetStringValue(new_scale);
+    label_->SetText(base::UTF8ToUTF16(str_value));
+  }
+}
+
+void ScaleView::SliderDragEnded(views::Slider* sender) {
+  display::Display::ResetForceDeviceScaleFactorForTesting();
+  base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+      switches::kForceDeviceScaleFactor,
+      GetStringValue(1.f + slider_->value() * 2.0f));
+  ash::Shell::Get()->display_manager()->UpdateDisplays();
+}
+
+}  // namespace tray
+}  // namespace ash