chromeos: Move files in //ash/common to //ash, part 2

ash/common/shelf/shelf_widget.cc

Index: ash/common/shelf/shelf_widget.cc
diff --git a/ash/common/shelf/shelf_widget.cc b/ash/common/shelf/shelf_widget.cc
deleted file mode 100644
index 0bbfb54a509dccfa82daa27511d513f80e383e18..0000000000000000000000000000000000000000
--- a/ash/common/shelf/shelf_widget.cc
+++ /dev/null
@@ -1,358 +0,0 @@
-// Copyright 2012 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/common/shelf/shelf_widget.h"
-
-#include "ash/animation/animation_change_type.h"
-#include "ash/common/focus_cycler.h"
-#include "ash/common/session/session_state_delegate.h"
-#include "ash/common/shelf/app_list_button.h"
-#include "ash/common/shelf/shelf_background_animator_observer.h"
-#include "ash/common/shelf/shelf_constants.h"
-#include "ash/common/shelf/shelf_delegate.h"
-#include "ash/common/shelf/shelf_layout_manager.h"
-#include "ash/common/shelf/shelf_view.h"
-#include "ash/common/shelf/wm_shelf.h"
-#include "ash/common/shelf/wm_shelf_util.h"
-#include "ash/common/wm_shell.h"
-#include "ash/common/wm_window.h"
-#include "ash/root_window_controller.h"
-#include "ash/system/status_area_layout_manager.h"
-#include "ash/system/status_area_widget.h"
-#include "ash/wm/window_properties.h"
-#include "base/memory/ptr_util.h"
-#include "ui/compositor/layer.h"
-#include "ui/compositor/scoped_layer_animation_settings.h"
-#include "ui/gfx/skbitmap_operations.h"
-#include "ui/views/accessible_pane_view.h"
-#include "ui/views/layout/fill_layout.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/widget/widget_delegate.h"
-
-namespace ash {
-
-// The contents view of the Shelf. This view contains ShelfView and
-// sizes it to the width of the shelf minus the size of the status area.
-class ShelfWidget::DelegateView : public views::WidgetDelegate,
-                                  public views::AccessiblePaneView,
-                                  public ShelfBackgroundAnimatorObserver {
- public:
-  explicit DelegateView(ShelfWidget* shelf);
-  ~DelegateView() override;
-
-  void set_focus_cycler(FocusCycler* focus_cycler) {
-    focus_cycler_ = focus_cycler;
-  }
-  FocusCycler* focus_cycler() { return focus_cycler_; }
-
-  ui::Layer* opaque_background() { return &opaque_background_; }
-  ui::Layer* opaque_foreground() { return &opaque_foreground_; }
-
-  void SetParentLayer(ui::Layer* layer);
-
-  // views::WidgetDelegateView overrides:
-  views::Widget* GetWidget() override { return View::GetWidget(); }
-  const views::Widget* GetWidget() const override { return View::GetWidget(); }
-
-  bool CanActivate() const override;
-  void ReorderChildLayers(ui::Layer* parent_layer) override;
-  // This will be called when the parent local bounds change.
-  void OnBoundsChanged(const gfx::Rect& old_bounds) override;
-
-  // ShelfBackgroundAnimatorObserver:
-  void UpdateShelfBackground(SkColor color) override;
-
- private:
-  ShelfWidget* shelf_widget_;
-  FocusCycler* focus_cycler_;
-  // A black background layer that may be visible depending on a
-  // ShelfBackgroundAnimator.
-  // TODO(bruthig): Remove opaque_background_ (see https://crbug.com/621551).
-  ui::Layer opaque_background_;
-  // A black foreground layer which is shown while transitioning between users.
-  // Note: Since the back- and foreground layers have different functions they
-  // can be used simultaneously - so no repurposing possible.
-  ui::Layer opaque_foreground_;
-
-  DISALLOW_COPY_AND_ASSIGN(DelegateView);
-};
-
-ShelfWidget::DelegateView::DelegateView(ShelfWidget* shelf_widget)
-    : shelf_widget_(shelf_widget),
-      focus_cycler_(nullptr),
-      opaque_background_(ui::LAYER_SOLID_COLOR),
-      opaque_foreground_(ui::LAYER_SOLID_COLOR) {
-  DCHECK(shelf_widget_);
-  SetLayoutManager(new views::FillLayout());
-  set_allow_deactivate_on_esc(true);
-  opaque_background_.SetColor(SK_ColorBLACK);
-  opaque_background_.SetBounds(GetLocalBounds());
-  opaque_foreground_.SetColor(SK_ColorBLACK);
-  opaque_foreground_.SetBounds(GetLocalBounds());
-  opaque_foreground_.SetOpacity(0.0f);
-}
-
-ShelfWidget::DelegateView::~DelegateView() {}
-
-void ShelfWidget::DelegateView::SetParentLayer(ui::Layer* layer) {
-  layer->Add(&opaque_background_);
-  layer->Add(&opaque_foreground_);
-  ReorderLayers();
-}
-
-bool ShelfWidget::DelegateView::CanActivate() const {
-  // Allow to activate as fallback.
-  if (shelf_widget_->activating_as_fallback_)
-    return true;
-  // Allow to activate from the focus cycler.
-  if (focus_cycler_ && focus_cycler_->widget_activating() == GetWidget())
-    return true;
-  // Disallow activating in other cases, especially when using mouse.
-  return false;
-}
-
-void ShelfWidget::DelegateView::ReorderChildLayers(ui::Layer* parent_layer) {
-  views::View::ReorderChildLayers(parent_layer);
-  parent_layer->StackAtBottom(&opaque_background_);
-  parent_layer->StackAtTop(&opaque_foreground_);
-}
-
-void ShelfWidget::DelegateView::OnBoundsChanged(const gfx::Rect& old_bounds) {
-  opaque_background_.SetBounds(GetLocalBounds());
-  opaque_foreground_.SetBounds(GetLocalBounds());
-}
-
-void ShelfWidget::DelegateView::UpdateShelfBackground(SkColor color) {
-  opaque_background_.SetColor(color);
-}
-
-ShelfWidget::ShelfWidget(WmWindow* shelf_container, WmShelf* wm_shelf)
-    : wm_shelf_(wm_shelf),
-      status_area_widget_(nullptr),
-      delegate_view_(new DelegateView(this)),
-      shelf_view_(nullptr),
-      background_animator_(SHELF_BACKGROUND_DEFAULT,
-                           wm_shelf_,
-                           WmShell::Get()->wallpaper_controller()),
-      activating_as_fallback_(false) {
-  DCHECK(wm_shelf_);
-  background_animator_.AddObserver(this);
-  background_animator_.AddObserver(delegate_view_);
-
-  views::Widget::InitParams params(
-      views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-  params.name = "ShelfWidget";
-  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
-  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  params.delegate = delegate_view_;
-  shelf_container->GetRootWindowController()
-      ->ConfigureWidgetInitParamsForContainer(
-          this, shelf_container->GetShellWindowId(), &params);
-  Init(params);
-
-  // The shelf should not take focus when initially shown.
-  set_focus_on_creation(false);
-  SetContentsView(delegate_view_);
-  delegate_view_->SetParentLayer(GetLayer());
-
-  shelf_layout_manager_ = new ShelfLayoutManager(this, wm_shelf_);
-  shelf_layout_manager_->AddObserver(this);
-  shelf_container->SetLayoutManager(base::WrapUnique(shelf_layout_manager_));
-  background_animator_.PaintBackground(
-      shelf_layout_manager_->GetShelfBackgroundType(),
-      AnimationChangeType::IMMEDIATE);
-
-  views::Widget::AddObserver(this);
-}
-
-ShelfWidget::~ShelfWidget() {
-  // Must call Shutdown() before destruction.
-  DCHECK(!status_area_widget_);
-  WmShell::Get()->focus_cycler()->RemoveWidget(this);
-  SetFocusCycler(nullptr);
-  RemoveObserver(this);
-  background_animator_.RemoveObserver(delegate_view_);
-  background_animator_.RemoveObserver(this);
-}
-
-void ShelfWidget::CreateStatusAreaWidget(WmWindow* status_container) {
-  DCHECK(status_container);
-  DCHECK(!status_area_widget_);
-  // TODO(jamescook): Move ownership to RootWindowController.
-  status_area_widget_ = new StatusAreaWidget(status_container, wm_shelf_);
-  status_area_widget_->CreateTrayViews();
-  if (WmShell::Get()->GetSessionStateDelegate()->IsActiveUserSessionStarted())
-    status_area_widget_->Show();
-  WmShell::Get()->focus_cycler()->AddWidget(status_area_widget_);
-  background_animator_.AddObserver(status_area_widget_);
-  status_container->SetLayoutManager(
-      base::MakeUnique<StatusAreaLayoutManager>(this));
-}
-
-void ShelfWidget::SetPaintsBackground(ShelfBackgroundType background_type,
-                                      AnimationChangeType change_type) {
-  background_animator_.PaintBackground(background_type, change_type);
-}
-
-ShelfBackgroundType ShelfWidget::GetBackgroundType() const {
-  return background_animator_.target_background_type();
-}
-
-void ShelfWidget::HideShelfBehindBlackBar(bool hide, int animation_time_ms) {
-  if (IsShelfHiddenBehindBlackBar() == hide)
-    return;
-
-  ui::Layer* opaque_foreground = delegate_view_->opaque_foreground();
-  float target_opacity = hide ? 1.0f : 0.0f;
-  std::unique_ptr<ui::ScopedLayerAnimationSettings> opaque_foreground_animation;
-  opaque_foreground_animation.reset(
-      new ui::ScopedLayerAnimationSettings(opaque_foreground->GetAnimator()));
-  opaque_foreground_animation->SetTransitionDuration(
-      base::TimeDelta::FromMilliseconds(animation_time_ms));
-  opaque_foreground_animation->SetPreemptionStrategy(
-      ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
-
-  opaque_foreground->SetOpacity(target_opacity);
-}
-
-bool ShelfWidget::IsShelfHiddenBehindBlackBar() const {
-  return delegate_view_->opaque_foreground()->GetTargetOpacity() != 0.0f;
-}
-
-void ShelfWidget::OnShelfAlignmentChanged() {
-  shelf_view_->OnShelfAlignmentChanged();
-  // TODO(jamescook): Status area should not cache alignment.
-  status_area_widget_->SetShelfAlignment(wm_shelf_->GetAlignment());
-  delegate_view_->SchedulePaint();
-}
-
-ShelfView* ShelfWidget::CreateShelfView() {
-  DCHECK(!shelf_view_);
-
-  shelf_view_ =
-      new ShelfView(WmShell::Get()->shelf_model(),
-                    WmShell::Get()->shelf_delegate(), wm_shelf_, this);
-  shelf_view_->Init();
-  GetContentsView()->AddChildView(shelf_view_);
-  return shelf_view_;
-}
-
-void ShelfWidget::PostCreateShelf() {
-  SetFocusCycler(WmShell::Get()->focus_cycler());
-
-  // Ensure the newly created |shelf_| gets current values.
-  background_animator_.NotifyObserver(this);
-
-  // TODO(jamescook): The IsActiveUserSessionStarted() check may not be needed
-  // because the shelf is only created after the first user session is active.
-  // The ShelfView seems to always be visible after login. At the lock screen
-  // the shelf is hidden because its container is hidden. During auto-hide it is
-  // hidden because ShelfWidget is transparent. Some of the ShelfView visibility
-  // code could be simplified. http://crbug.com/674773
-  shelf_view_->SetVisible(
-      WmShell::Get()->GetSessionStateDelegate()->IsActiveUserSessionStarted());
-  shelf_layout_manager_->LayoutShelf();
-  shelf_layout_manager_->UpdateAutoHideState();
-  Show();
-}
-
-bool ShelfWidget::IsShelfVisible() const {
-  return shelf_view_ && shelf_view_->visible();
-}
-
-bool ShelfWidget::IsShowingAppList() const {
-  return GetAppListButton() && GetAppListButton()->is_showing_app_list();
-}
-
-bool ShelfWidget::IsShowingContextMenu() const {
-  return shelf_view_ && shelf_view_->IsShowingMenu();
-}
-
-bool ShelfWidget::IsShowingOverflowBubble() const {
-  return shelf_view_ && shelf_view_->IsShowingOverflowBubble();
-}
-
-void ShelfWidget::SetFocusCycler(FocusCycler* focus_cycler) {
-  delegate_view_->set_focus_cycler(focus_cycler);
-  if (focus_cycler)
-    focus_cycler->AddWidget(this);
-}
-
-FocusCycler* ShelfWidget::GetFocusCycler() {
-  return delegate_view_->focus_cycler();
-}
-
-void ShelfWidget::Shutdown() {
-  // Shutting down the status area widget may cause some widgets (e.g. bubbles)
-  // to close, so uninstall the ShelfLayoutManager event filters first. Don't
-  // reset the pointer until later because other widgets (e.g. app list) may
-  // access it later in shutdown.
-  if (shelf_layout_manager_)
-    shelf_layout_manager_->PrepareForShutdown();
-
-  if (status_area_widget_) {
-    background_animator_.RemoveObserver(status_area_widget_);
-    WmShell::Get()->focus_cycler()->RemoveWidget(status_area_widget_);
-    status_area_widget_->Shutdown();
-    status_area_widget_ = nullptr;
-  }
-
-  CloseNow();
-}
-
-void ShelfWidget::UpdateIconPositionForPanel(WmWindow* panel) {
-  if (!shelf_view_)
-    return;
-
-  WmWindow* shelf_window = WmWindow::Get(this->GetNativeWindow());
-  shelf_view_->UpdatePanelIconPosition(
-      panel->aura_window()->GetProperty(kShelfIDKey),
-      shelf_window->ConvertRectFromScreen(panel->GetBoundsInScreen())
-          .CenterPoint());
-}
-
-gfx::Rect ShelfWidget::GetScreenBoundsOfItemIconForWindow(WmWindow* window) {
-  // Window animations can be triggered during session restore before the shelf
-  // view is created. In that case, return default empty bounds.
-  if (!shelf_view_)
-    return gfx::Rect();
-
-  ShelfID id = window->aura_window()->GetProperty(kShelfIDKey);
-  gfx::Rect bounds(shelf_view_->GetIdealBoundsOfItemIcon(id));
-  gfx::Point screen_origin;
-  views::View::ConvertPointToScreen(shelf_view_, &screen_origin);
-  return gfx::Rect(screen_origin.x() + bounds.x(),
-                   screen_origin.y() + bounds.y(), bounds.width(),
-                   bounds.height());
-}
-
-AppListButton* ShelfWidget::GetAppListButton() const {
-  return shelf_view_ ? shelf_view_->GetAppListButton() : nullptr;
-}
-
-app_list::ApplicationDragAndDropHost*
-ShelfWidget::GetDragAndDropHostForAppList() {
-  return shelf_view_;
-}
-
-void ShelfWidget::OnWidgetActivationChanged(views::Widget* widget,
-                                            bool active) {
-  activating_as_fallback_ = false;
-  if (active)
-    delegate_view_->SetPaneFocusAndFocusDefault();
-  else
-    delegate_view_->GetFocusManager()->ClearFocus();
-}
-
-void ShelfWidget::UpdateShelfItemBackground(SkColor color) {
-  if (shelf_view_)
-    shelf_view_->UpdateShelfItemBackground(color);
-}
-
-void ShelfWidget::WillDeleteShelfLayoutManager() {
-  shelf_layout_manager_->RemoveObserver(this);
-  shelf_layout_manager_ = nullptr;
-}
-
-}  // namespace ash