Reland: mash: Convert TrayBackgroundView to wm common types

ash/system/tray/system_tray_bubble.cc

Index: ash/system/tray/system_tray_bubble.cc
diff --git a/ash/system/tray/system_tray_bubble.cc b/ash/system/tray/system_tray_bubble.cc
deleted file mode 100644
index 9d5cc95158d796fa32ba3b310381ccf6fd563de2..0000000000000000000000000000000000000000
--- a/ash/system/tray/system_tray_bubble.cc
+++ /dev/null
@@ -1,326 +0,0 @@
-// Copyright (c) 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/system/tray/system_tray_bubble.h"
-
-#include "ash/common/system/tray/system_tray_delegate.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/common/wm_shell.h"
-#include "ash/shell.h"
-#include "ash/system/tray/system_tray.h"
-#include "ash/system/tray/tray_bubble_wrapper.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "ui/compositor/layer.h"
-#include "ui/compositor/layer_animation_observer.h"
-#include "ui/compositor/scoped_layer_animation_settings.h"
-#include "ui/gfx/canvas.h"
-#include "ui/views/layout/box_layout.h"
-#include "ui/views/view.h"
-#include "ui/views/widget/widget.h"
-
-using views::TrayBubbleView;
-
-namespace ash {
-
-namespace {
-
-// Normally a detailed view is the same size as the default view. However,
-// when showing a detailed view directly (e.g. clicking on a notification),
-// we may not know the height of the default view, or the default view may
-// be too short, so we use this as a default and minimum height for any
-// detailed view.
-const int kDetailedBubbleMaxHeight = kTrayPopupItemHeight * 5;
-
-// Duration of swipe animation used when transitioning from a default to
-// detailed view or vice versa.
-const int kSwipeDelayMS = 150;
-
-// Implicit animation observer that deletes itself and the layer at the end of
-// the animation.
-class AnimationObserverDeleteLayer : public ui::ImplicitAnimationObserver {
- public:
-  explicit AnimationObserverDeleteLayer(ui::Layer* layer)
-      : layer_(layer) {
-  }
-
-  ~AnimationObserverDeleteLayer() override {}
-
-  void OnImplicitAnimationsCompleted() override {
-    base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
-  }
-
- private:
-  std::unique_ptr<ui::Layer> layer_;
-
-  DISALLOW_COPY_AND_ASSIGN(AnimationObserverDeleteLayer);
-};
-
-}  // namespace
-
-// SystemTrayBubble
-
-SystemTrayBubble::SystemTrayBubble(
-    ash::SystemTray* tray,
-    const std::vector<ash::SystemTrayItem*>& items,
-    BubbleType bubble_type)
-    : tray_(tray),
-      bubble_view_(NULL),
-      items_(items),
-      bubble_type_(bubble_type),
-      autoclose_delay_(0) {
-}
-
-SystemTrayBubble::~SystemTrayBubble() {
-  DestroyItemViews();
-  // Reset the host pointer in bubble_view_ in case its destruction is deferred.
-  if (bubble_view_)
-    bubble_view_->reset_delegate();
-}
-
-void SystemTrayBubble::UpdateView(
-    const std::vector<ash::SystemTrayItem*>& items,
-    BubbleType bubble_type) {
-  DCHECK(bubble_type != BUBBLE_TYPE_NOTIFICATION);
-
-  std::unique_ptr<ui::Layer> scoped_layer;
-  if (bubble_type != bubble_type_) {
-    base::TimeDelta swipe_duration =
-        base::TimeDelta::FromMilliseconds(kSwipeDelayMS);
-    scoped_layer = bubble_view_->RecreateLayer();
-    // Keep the reference to layer as we need it after releasing it.
-    ui::Layer* layer = scoped_layer.get();
-    DCHECK(layer);
-    layer->SuppressPaint();
-
-    // When transitioning from detailed view to default view, animate the
-    // existing view (slide out towards the right).
-    if (bubble_type == BUBBLE_TYPE_DEFAULT) {
-      ui::ScopedLayerAnimationSettings settings(layer->GetAnimator());
-      settings.AddObserver(
-          new AnimationObserverDeleteLayer(scoped_layer.release()));
-      settings.SetTransitionDuration(swipe_duration);
-      settings.SetTweenType(gfx::Tween::EASE_OUT);
-      gfx::Transform transform;
-      transform.Translate(layer->bounds().width(), 0.0);
-      layer->SetTransform(transform);
-    }
-
-    {
-      // Add a shadow layer to make the old layer darker as the animation
-      // progresses.
-      ui::Layer* shadow = new ui::Layer(ui::LAYER_SOLID_COLOR);
-      shadow->SetColor(SK_ColorBLACK);
-      shadow->SetOpacity(0.01f);
-      shadow->SetBounds(layer->bounds());
-      layer->Add(shadow);
-      layer->StackAtTop(shadow);
-      {
-        // Animate the darkening effect a little longer than the swipe-in. This
-        // is to make sure the darkening animation does not end up finishing
-        // early, because the dark layer goes away at the end of the animation,
-        // and there is a brief moment when the old view is still visible, but
-        // it does not have the shadow layer on top.
-        ui::ScopedLayerAnimationSettings settings(shadow->GetAnimator());
-        settings.AddObserver(new AnimationObserverDeleteLayer(shadow));
-        settings.SetTransitionDuration(swipe_duration +
-                                       base::TimeDelta::FromMilliseconds(150));
-        settings.SetTweenType(gfx::Tween::LINEAR);
-        shadow->SetOpacity(0.15f);
-      }
-    }
-  }
-
-  DestroyItemViews();
-  bubble_view_->RemoveAllChildViews(true);
-
-  items_ = items;
-  bubble_type_ = bubble_type;
-  CreateItemViews(WmShell::Get()->system_tray_delegate()->GetUserLoginStatus());
-
-  // Close bubble view if we failed to create the item view.
-  if (!bubble_view_->has_children()) {
-    Close();
-    return;
-  }
-
-  bubble_view_->GetWidget()->GetContentsView()->Layout();
-  // Make sure that the bubble is large enough for the default view.
-  if (bubble_type_ == BUBBLE_TYPE_DEFAULT) {
-    bubble_view_->SetMaxHeight(0);  // Clear max height limit.
-  }
-
-  if (scoped_layer) {
-    // When transitioning from default view to detailed view, animate the new
-    // view (slide in from the right).
-    if (bubble_type == BUBBLE_TYPE_DETAILED) {
-      ui::Layer* new_layer = bubble_view_->layer();
-
-      // Make sure the new layer is stacked above the old layer during the
-      // animation.
-      new_layer->parent()->StackAbove(new_layer, scoped_layer.get());
-
-      gfx::Rect bounds = new_layer->bounds();
-      gfx::Transform transform;
-      transform.Translate(bounds.width(), 0.0);
-      new_layer->SetTransform(transform);
-      {
-        ui::ScopedLayerAnimationSettings settings(new_layer->GetAnimator());
-        settings.AddObserver(
-            new AnimationObserverDeleteLayer(scoped_layer.release()));
-        settings.SetTransitionDuration(
-            base::TimeDelta::FromMilliseconds(kSwipeDelayMS));
-        settings.SetTweenType(gfx::Tween::EASE_OUT);
-        new_layer->SetTransform(gfx::Transform());
-      }
-    }
-  }
-}
-
-void SystemTrayBubble::InitView(views::View* anchor,
-                                LoginStatus login_status,
-                                TrayBubbleView::InitParams* init_params) {
-  DCHECK(anchor);
-  DCHECK(!bubble_view_);
-
-  if (bubble_type_ == BUBBLE_TYPE_DETAILED &&
-      init_params->max_height < kDetailedBubbleMaxHeight) {
-    init_params->max_height = kDetailedBubbleMaxHeight;
-  } else if (bubble_type_ == BUBBLE_TYPE_NOTIFICATION) {
-    init_params->close_on_deactivate = false;
-  }
-  // The TrayBubbleView will use |anchor| and |tray_| to determine the parent
-  // container for the bubble.
-  bubble_view_ = TrayBubbleView::Create(anchor, tray_, init_params);
-  bubble_view_->set_adjust_if_offscreen(false);
-  CreateItemViews(login_status);
-
-  if (bubble_view_->CanActivate()) {
-    bubble_view_->NotifyAccessibilityEvent(
-        ui::AX_EVENT_ALERT, true);
-  }
-}
-
-void SystemTrayBubble::FocusDefaultIfNeeded() {
-  views::FocusManager* manager = bubble_view_->GetFocusManager();
-  if (!manager || manager->GetFocusedView())
-    return;
-
-  views::View* view = manager->GetNextFocusableView(NULL, NULL, false, false);
-  if (view)
-    view->RequestFocus();
-}
-
-void SystemTrayBubble::DestroyItemViews() {
-  for (std::vector<ash::SystemTrayItem*>::iterator it = items_.begin();
-       it != items_.end();
-       ++it) {
-    switch (bubble_type_) {
-      case BUBBLE_TYPE_DEFAULT:
-        (*it)->DestroyDefaultView();
-        break;
-      case BUBBLE_TYPE_DETAILED:
-        (*it)->DestroyDetailedView();
-        break;
-      case BUBBLE_TYPE_NOTIFICATION:
-        (*it)->DestroyNotificationView();
-        break;
-    }
-  }
-}
-
-void SystemTrayBubble::BubbleViewDestroyed() {
-  bubble_view_ = NULL;
-}
-
-void SystemTrayBubble::StartAutoCloseTimer(int seconds) {
-  autoclose_.Stop();
-  autoclose_delay_ = seconds;
-  if (autoclose_delay_) {
-    autoclose_.Start(FROM_HERE,
-                     base::TimeDelta::FromSeconds(autoclose_delay_),
-                     this, &SystemTrayBubble::Close);
-  }
-}
-
-void SystemTrayBubble::StopAutoCloseTimer() {
-  autoclose_.Stop();
-}
-
-void SystemTrayBubble::RestartAutoCloseTimer() {
-  if (autoclose_delay_)
-    StartAutoCloseTimer(autoclose_delay_);
-}
-
-void SystemTrayBubble::Close() {
-  tray_->HideBubbleWithView(bubble_view());
-}
-
-void SystemTrayBubble::SetVisible(bool is_visible) {
-  if (!bubble_view_)
-    return;
-  views::Widget* bubble_widget = bubble_view_->GetWidget();
-  if (is_visible)
-    bubble_widget->Show();
-  else
-    bubble_widget->Hide();
-}
-
-bool SystemTrayBubble::IsVisible() {
-  return bubble_view() && bubble_view()->GetWidget()->IsVisible();
-}
-
-bool SystemTrayBubble::ShouldShowShelf() const {
-  for (std::vector<ash::SystemTrayItem*>::const_iterator it = items_.begin();
-       it != items_.end();
-       ++it) {
-    if ((*it)->ShouldShowShelf())
-      return true;
-  }
-  return false;
-}
-
-void SystemTrayBubble::CreateItemViews(LoginStatus login_status) {
-  std::vector<views::View*> item_views;
-  // If a system modal dialog is present, create the same tray as
-  // in locked state.
-  if (WmShell::Get()->IsSystemModalWindowOpen() &&
-      login_status != LoginStatus::NOT_LOGGED_IN) {
-    login_status = LoginStatus::LOCKED;
-  }
-
-  views::View* focus_view = NULL;
-  for (size_t i = 0; i < items_.size(); ++i) {
-    views::View* view = NULL;
-    switch (bubble_type_) {
-      case BUBBLE_TYPE_DEFAULT:
-        view = items_[i]->CreateDefaultView(login_status);
-        if (items_[i]->restore_focus())
-          focus_view = view;
-        break;
-      case BUBBLE_TYPE_DETAILED:
-        view = items_[i]->CreateDetailedView(login_status);
-        break;
-      case BUBBLE_TYPE_NOTIFICATION:
-        view = items_[i]->CreateNotificationView(login_status);
-        break;
-    }
-    if (view)
-      item_views.push_back(view);
-  }
-
-  bool is_default_bubble = bubble_type_ == BUBBLE_TYPE_DEFAULT;
-  for (size_t i = 0; i < item_views.size(); ++i) {
-    // For default view, draw bottom border for each item, except the last
-    // 2 items, which are the bottom header row and the one just above it.
-    bubble_view_->AddChildView(new TrayPopupItemContainer(
-        item_views[i], is_default_bubble,
-        is_default_bubble && (i < item_views.size() - 2)));
-  }
-  if (focus_view)
-    focus_view->RequestFocus();
-}
-
-}  // namespace ash