aura: Implement app list M19 mock.

ash/app_list/app_list_groups_view.h

-// Copyright (c) 2011 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 ASH_APP_LIST_APP_LIST_GROUPS_VIEW_H_
-#define ASH_APP_LIST_APP_LIST_GROUPS_VIEW_H_
-#pragma once
-
-#include <string>
-#include <vector>
-
-#include "ash/ash_export.h"
-#include "ui/base/models/list_model_observer.h"
-#include "ui/views/controls/button/button.h"
-#include "ui/views/view.h"
-
-namespace views {
-class BoundsAnimator;
-}
-
-namespace ash {
-
-class AppListItemGroupView;
-class AppListItemViewListener;
-class AppListModel;
-
-// AppListGroupsView displays the UI for an AppListModel. If there are more than
-// one group in the model , a button strip is displayed to allow user to switch
-// between pages.
-class ASH_EXPORT AppListGroupsView : public views::View,
-                                            public views::ButtonListener,
-                                            public ui::ListModelObserver {
- public:
-  AppListGroupsView(AppListModel* model,
-                    AppListItemViewListener* listener);
-  virtual ~AppListGroupsView();
-
-  // Gets current focused tile.
-  views::View* GetFocusedTile() const;
-
- private:
-  // Updates from model.
-  void Update();
-
-  // Adds a result group page.
-  void AddPage(const std::string& title, AppListItemGroupView* page);
-
-  // Gets preferred number of tiles per row.
-  int GetPreferredTilesPerRow() const;
-
-  // Gets current result page.
-  AppListItemGroupView* GetCurrentPageView() const;
-
-  // Sets current result page.
-  void SetCurrentPage(int page);
-
-  // Overridden from views::View:
-  virtual void Layout() OVERRIDE;
-  virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
-
-  // Overridden from views::ButtonListener:
-  virtual void ButtonPressed(views::Button* sender,
-                             const views::Event& event) OVERRIDE;
-
-  // Overridden from ListModelObserver:
-  virtual void ListItemsAdded(int start, int count) OVERRIDE;
-  virtual void ListItemsRemoved(int start, int count) OVERRIDE;
-  virtual void ListItemsChanged(int start, int count) OVERRIDE;
-
-  AppListModel* model_;  // Owned by parent AppListView.
-  AppListItemViewListener* listener_;
-
-  std::vector<AppListItemGroupView*> pages_;
-  views::View* page_buttons_;
-  int current_page_;
-
-  scoped_ptr<views::BoundsAnimator> animator_;
-
-  DISALLOW_COPY_AND_ASSIGN(AppListGroupsView);
-};
-
-}  // namespace ash
-
-#endif  // ASH_APP_LIST_APP_LIST_GROUPS_VIEW_H_