ui/app_list/views/start_page_view.h

// Copyright 2014 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_VIEWS_START_PAGE_VIEW_H_
#define UI_APP_LIST_VIEWS_START_PAGE_VIEW_H_

#include <stddef.h>

#include <vector>

#include "base/macros.h"
#include "ui/app_list/app_list_export.h"
#include "ui/app_list/views/app_list_page.h"

namespace app_list {

class AppListMainView;
class AppListViewDelegate;
class CustomLauncherPageBackgroundView;
class SearchResultTileItemView;
class TileItemView;

// The start page for the app list.
class APP_LIST_EXPORT StartPageView : public AppListPage {
 public:
  StartPageView(AppListMainView* app_list_main_view,
                AppListViewDelegate* view_delegate);
  ~StartPageView() override;

  void Reset();

  void UpdateForTesting();

  views::View* instant_container() const { return instant_container_; }
  const std::vector<SearchResultTileItemView*>& tile_views() const;
  TileItemView* all_apps_button() const;

  // Overridden from AppListPage:
  gfx::Rect GetPageBoundsForState(AppListModel::State state) const override;
  gfx::Rect GetSearchBoxBounds() const override;
  void OnShown() override;

  // Overridden from views::View:
  void Layout() override;
  bool OnKeyPressed(const ui::KeyEvent& event) override;

  bool OnMousePressed(const ui::MouseEvent& event) override;
  bool OnMouseWheel(const ui::MouseWheelEvent& event) override;
  void OnGestureEvent(ui::GestureEvent* event) override;
  void OnScrollEvent(ui::ScrollEvent* event) override;


 private:
  class StartPageTilesContainer;

  void InitInstantContainer();
  void MaybeOpenCustomLauncherPage();

  void SetCustomLauncherPageSelected(bool selected);

  TileItemView* GetTileItemView(size_t index);

  // The parent view of ContentsView which is the parent of this view.
  AppListMainView* app_list_main_view_;

  AppListViewDelegate* view_delegate_;  // Owned by AppListView.

  views::View* search_box_spacer_view_;  // Owned by views hierarchy.
  views::View* instant_container_;  // Owned by views hierarchy.
  CustomLauncherPageBackgroundView*
      custom_launcher_page_background_;       // Owned by view hierarchy.
  StartPageTilesContainer* tiles_container_;  // Owned by views hierarchy.

  DISALLOW_COPY_AND_ASSIGN(StartPageView);
};

}  // namespace app_list

#endif  // UI_APP_LIST_VIEWS_START_PAGE_VIEW_H_