Refactor: Shelf Widget

ash/system/tray/tray_background_view.cc

 // 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/tray_background_view.h"
 
-#include "ash/launcher/background_animator.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
+#include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/status_area_widget_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_event_filter.h"
 #include "ash/wm/property_util.h"
-#include "ash/wm/shelf_layout_manager.h"
 #include "ash/wm/window_animations.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/background.h"
 #include "ui/views/layout/box_layout.h"
 
 namespace {
-
-const SkColor kTrayBackgroundAlpha = 100;
 const SkColor kTrayBackgroundHoverAlpha = 150;
 
 // Adjust the size of TrayContainer with additional padding.
 const int kTrayContainerVerticalPaddingBottomAlignment  = 1;
 const int kTrayContainerHorizontalPaddingBottomAlignment  = 1;
 const int kTrayContainerVerticalPaddingVerticalAlignment  = 1;
 const int kTrayContainerHorizontalPaddingVerticalAlignment = 1;
 
 const int kAnimationDurationForPopupMS = 200;
 
@@ skipping 23 matching lines @@
   }
 
  private:
   TrayBackgroundView* host_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayWidgetObserver);
 };
 
 class TrayBackground : public views::Background {
  public:
-  TrayBackground() : alpha_(kTrayBackgroundAlpha) {}
+  TrayBackground() : alpha_(0) {}
   virtual ~TrayBackground() {}
 
   void set_alpha(int alpha) { alpha_ = alpha; }
 
  private:
   // Overridden from views::Background.
   virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE {
     SkPaint paint;
     paint.setAntiAlias(true);
     paint.setStyle(SkPaint::kFill_Style);
@@ skipping 74 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // TrayBackgroundView
 
 TrayBackgroundView::TrayBackgroundView(
     internal::StatusAreaWidget* status_area_widget)
     : status_area_widget_(status_area_widget),
       tray_container_(NULL),
       shelf_alignment_(SHELF_ALIGNMENT_BOTTOM),
       background_(NULL),
-      ALLOW_THIS_IN_INITIALIZER_LIST(hide_background_animator_(
-          this, 0, kTrayBackgroundAlpha)),
       ALLOW_THIS_IN_INITIALIZER_LIST(hover_background_animator_(
-          this, 0, kTrayBackgroundHoverAlpha - kTrayBackgroundAlpha)),
+          this, 0, kTrayBackgroundHoverAlpha)),
       ALLOW_THIS_IN_INITIALIZER_LIST(widget_observer_(
           new TrayWidgetObserver(this))) {
   set_notify_enter_exit_on_child(true);
 
   // Initially we want to paint the background, but without the hover effect.
-  SetPaintsBackground(true, internal::BackgroundAnimator::CHANGE_IMMEDIATE);
   hover_background_animator_.SetPaintsBackground(false,
       internal::BackgroundAnimator::CHANGE_IMMEDIATE);
 
   tray_container_ = new TrayContainer(shelf_alignment_);
   SetContents(tray_container_);
   tray_event_filter_.reset(new TrayEventFilter);
 }
 
 TrayBackgroundView::~TrayBackgroundView() {
   if (GetWidget())
@@ skipping 38 matching lines @@
   if (v)
     v->AboutToRequestFocusFromTabTraversal(reverse);
 }
 
 bool TrayBackgroundView::PerformAction(const ui::Event& event) {
   return false;
 }
 
 void TrayBackgroundView::UpdateBackground(int alpha) {
   if (background_) {
-    background_->set_alpha(hide_background_animator_.alpha() +
-                           hover_background_animator_.alpha());
+    background_->set_alpha(hover_background_animator_.alpha());
   }
   SchedulePaint();
 }
 
 void TrayBackgroundView::SetContents(views::View* contents) {
   SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0));
   AddChildView(contents);
 }
 
 void TrayBackgroundView::SetContentsBackground() {
   background_ = new internal::TrayBackground;
   tray_container_->set_background(background_);
 }
 
-void TrayBackgroundView::SetPaintsBackground(
-      bool value,
-      internal::BackgroundAnimator::ChangeType change_type) {
-  hide_background_animator_.SetPaintsBackground(value, change_type);
-}
-
 ShelfLayoutManager* TrayBackgroundView::GetShelfLayoutManager() {
-  return
-      RootWindowController::ForLauncher(GetWidget()->GetNativeView())->shelf();
+  return ShelfLayoutManager::ForLauncher(GetWidget()->GetNativeView());
 }
 
 void TrayBackgroundView::SetShelfAlignment(ShelfAlignment alignment) {
   shelf_alignment_ = alignment;
   SetBorder();
   tray_container_->SetAlignment(alignment);
 }
 
 void TrayBackgroundView::SetBorder() {
   views::View* parent = status_area_widget_->status_area_widget_delegate();
@@ skipping 107 matching lines @@
   }
   NOTREACHED();
   return TrayBubbleView::ANCHOR_ALIGNMENT_BOTTOM;
 }
 
 void TrayBackgroundView::UpdateBubbleViewArrow(
     views::TrayBubbleView* bubble_view) {
   aura::RootWindow* root_window =
       bubble_view->GetWidget()->GetNativeView()->GetRootWindow();
   ash::internal::ShelfLayoutManager* shelf =
-      ash::GetRootWindowController(root_window)->shelf();
+      ShelfLayoutManager::ForLauncher(root_window);
   bubble_view->SetArrowPaintType(
       shelf->IsVisible() ? views::BubbleBorder::PAINT_NORMAL :
                            views::BubbleBorder::PAINT_TRANSPARENT);
 }
 
 }  // namespace internal
 }  // namespace ash