app_list: Add search box and search result view for v2.

ui/app_list/app_list_model_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_MODEL_VIEW_H_
-#define UI_APP_LIST_APP_LIST_MODEL_VIEW_H_
-#pragma once
-
-#include "ui/app_list/app_list_export.h"
-#include "ui/app_list/pagination_model_observer.h"
-#include "ui/base/models/list_model_observer.h"
-#include "ui/views/view.h"
-
-namespace views {
-class ButtonListener;
-}
-
-namespace app_list {
-
-class AppListItemView;
-class AppListModel;
-class PaginationModel;
-
-// AppListModelView displays the UI for an AppListModel.
-class APP_LIST_EXPORT AppListModelView : public views::View,
-                                         public ui::ListModelObserver,
-                                         public PaginationModelObserver {
- public:
-  AppListModelView(views::ButtonListener* listener,
-                   PaginationModel* pagination_model);
-  virtual ~AppListModelView();
-
-  // Calculate preferred icon size, rows and cols for given |content_size| and
-  // |num_of_tiles|.
-  static void CalculateLayout(const gfx::Size& content_size,
-                              int num_of_tiles,
-                              gfx::Size* icon_size,
-                              int* rows,
-                              int* cols);
-
-  // Sets fixed layout parameters. After setting this, CalculateLayout below
-  // is no longer called to dynamically choosing those layout params.
-  void SetLayout(int icon_size, int cols, int rows_per_page);
-
-  // Sets |model| to use. Note this does not take ownership of |model|.
-  void SetModel(AppListModel* model);
-
-  void SetSelectedItem(AppListItemView* item);
-  void ClearSelectedItem(AppListItemView* item);
-
-  int tiles_per_page() const {
-    return cols_ * rows_per_page_;
-  }
-
-  bool fixed_layout() const {
-    return fixed_layout_;
-  }
-
- private:
-  // Updates from model.
-  void Update();
-
-  AppListItemView* GetItemViewAtIndex(int index);
-  void SetSelectedItemByIndex(int index);
-
-  // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual void Layout() OVERRIDE;
-  virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
-  virtual bool OnKeyReleased(const views::KeyEvent& event) OVERRIDE;
-  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
-
-  // Overridden from ListModelObserver:
-  virtual void ListItemsAdded(size_t start, size_t count) OVERRIDE;
-  virtual void ListItemsRemoved(size_t start, size_t count) OVERRIDE;
-  virtual void ListItemsChanged(size_t start, size_t count) OVERRIDE;
-
-  // Overridden from PaginationModelObserver:
-  virtual void TotalPagesChanged() OVERRIDE;
-  virtual void SelectedPageChanged(int old_selected, int new_selected) OVERRIDE;
-
-  AppListModel* model_;  // Owned by parent AppListView.
-  views::ButtonListener* listener_;
-  PaginationModel* pagination_model_;  // Owned by AppListView.
-
-  bool fixed_layout_;
-  gfx::Size icon_size_;
-  int cols_;
-  int rows_per_page_;
-
-  int selected_item_index_;
-
-  DISALLOW_COPY_AND_ASSIGN(AppListModelView);
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_APP_LIST_MODEL_VIEW_H_