Skeleton for app_list on OSX, and refactoring for enable_app_list=1 on OS=="mac".

ui/app_list/app_list_view.h

-// 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.
-
-#ifndef UI_APP_LIST_APP_LIST_VIEW_H_
-#define UI_APP_LIST_APP_LIST_VIEW_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "base/timer.h"
-#include "ui/app_list/app_list_export.h"
-#include "ui/app_list/apps_grid_view_delegate.h"
-#include "ui/app_list/search_box_view_delegate.h"
-#include "ui/app_list/search_result_list_view_delegate.h"
-#include "ui/views/bubble/bubble_delegate.h"
-
-namespace views {
-class Widget;
-}
-
-namespace app_list {
-
-class AppListModel;
-class AppListItemModel;
-class AppListViewDelegate;
-class ContentsView;
-class PaginationModel;
-class SearchBoxView;
-
-// AppListView is the top-level view and controller of app list UI. It creates
-// and hosts a AppsGridView and passes AppListModel to it for display.
-class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
-                                    public AppsGridViewDelegate,
-                                    public SearchBoxViewDelegate,
-                                    public SearchResultListViewDelegate {
- public:
-  // Takes ownership of |delegate|.
-  explicit AppListView(AppListViewDelegate* delegate);
-  virtual ~AppListView();
-
-  // Initializes the widget.
-  void InitAsBubble(gfx::NativeView parent,
-                    PaginationModel* pagination_model,
-                    views::View* anchor,
-                    const gfx::Point& anchor_point,
-                    views::BubbleBorder::ArrowLocation arrow_location);
-
-  void SetBubbleArrowLocation(
-      views::BubbleBorder::ArrowLocation arrow_location);
-
-  void SetAnchorPoint(const gfx::Point& anchor_point);
-
-  // Shows the UI when there are no pending icon loads. Otherwise, starts a
-  // timer to show the UI when a maximum allowed wait time has expired.
-  void ShowWhenReady();
-
-  void Close();
-
-  void UpdateBounds();
-
- private:
-  class IconLoader;
-
-  // Loads icon image for the apps in the selected page of |pagination_model|.
-  // |anchor| is used to determine the image scale factor to use.
-  void PreloadIcons(PaginationModel* pagination_model,
-                    views::View* anchor);
-
-  // Invoked when |icon_loading_wait_timer_| fires.
-  void OnIconLoadingWaitTimer();
-
-  // Invoked from an IconLoader when icon loading is finished.
-  void OnItemIconLoaded(IconLoader* loader);
-
-  // Overridden from views::WidgetDelegateView:
-  virtual views::View* GetInitiallyFocusedView() OVERRIDE;
-  virtual bool WidgetHasHitTestMask() const OVERRIDE;
-  virtual void GetWidgetHitTestMask(gfx::Path* mask) const OVERRIDE;
-
-  // Overridden from views::View:
-  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
-
-  // Overridden from AppsGridViewDelegate:
-  virtual void ActivateApp(AppListItemModel* item, int event_flags) OVERRIDE;
-
-  // Overridden from SearchBoxViewDelegate:
-  virtual void QueryChanged(SearchBoxView* sender) OVERRIDE;
-
-  // Overridden from SearchResultListViewDelegate:
-  virtual void OpenResult(const SearchResult& result,
-                          int event_flags) OVERRIDE;
-  virtual void InvokeResultAction(const SearchResult& result,
-                                  int action_index,
-                                  int event_flags) OVERRIDE;
-
-  // Overridden from views::WidgetObserver:
-  virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
-  virtual void OnWidgetActivationChanged(views::Widget* widget, bool active)
-      OVERRIDE;
-
-  scoped_ptr<AppListModel> model_;
-  scoped_ptr<AppListViewDelegate> delegate_;
-
-  SearchBoxView* search_box_view_;  // Owned by views hierarchy.
-  ContentsView* contents_view_;  // Owned by views hierarchy.
-
-  // A timer that fires when maximum allowed time to wait for icon loading has
-  // passed.
-  base::OneShotTimer<AppListView> icon_loading_wait_timer_;
-
-  ScopedVector<IconLoader> pending_icon_loaders_;
-
-  DISALLOW_COPY_AND_ASSIGN(AppListView);
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_APP_LIST_VIEW_H_