apps_container_view.h revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
6#define UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
7
8#include "ui/app_list/app_list_folder_item.h"
9#include "ui/app_list/views/top_icon_animation_view.h"
10#include "ui/views/view.h"
11
12namespace content {
13class WebContents;
14}
15
16namespace app_list {
17
18class AppsGridView;
19class ApplicationDragAndDropHost;
20class AppListFolderItem;
21class AppListFolderView;
22class AppListMainView;
23class AppListModel;
24class ContentsView;
25class FolderBackgroundView;
26class PaginationModel;
27
28// AppsContainerView contains a root level AppsGridView to render the root level
29// app items, and a AppListFolderView to render the app items inside the
30// active folder. Only one if them is visible to user at any time.
31class AppsContainerView : public views::View,
32                          public TopIconAnimationObserver {
33 public:
34  AppsContainerView(AppListMainView* app_list_main_view,
35                    PaginationModel* pagination_model,
36                    AppListModel* model,
37                    content::WebContents* start_page_contents);
38  virtual ~AppsContainerView();
39
40  // Shows the active folder content specified by |folder_item|.
41  void ShowActiveFolder(AppListFolderItem* folder_item);
42
43  // Shows the root level apps list. This is called when UI navigate back from
44  // a folder view with |folder_item|. If |folder_item| is NULL skips animation.
45  void ShowApps(AppListFolderItem* folder_item);
46
47  // Sets |drag_and_drop_host_| for the current app list in both
48  // app_list_folder_view_ and root level apps_grid_view_.
49  void SetDragAndDropHostOfCurrentAppList(
50      ApplicationDragAndDropHost* drag_and_drop_host);
51
52  // Transits the UI from folder view to root lelve apps grid view when
53  // re-parenting a child item of |folder_item|.
54  void ReparentFolderItemTransit(AppListFolderItem* folder_item);
55
56  // views::View overrides:
57  virtual gfx::Size GetPreferredSize() OVERRIDE;
58  virtual void Layout() OVERRIDE;
59  virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
60
61  // TopIconAnimationObserver overrides:
62  virtual void OnTopIconAnimationsComplete() OVERRIDE;
63
64  AppsGridView* apps_grid_view() { return apps_grid_view_; }
65  FolderBackgroundView* folder_background_view() {
66     return folder_background_view_;
67  }
68  AppListFolderView* app_list_folder_view() { return app_list_folder_view_; }
69
70 private:
71  enum ShowState {
72    SHOW_APPS,
73    SHOW_ACTIVE_FOLDER,
74    SHOW_ITEM_REPARENT,
75  };
76
77  void SetShowState(ShowState show_state, bool show_apps_with_animation);
78
79  // Calculates the top item icon bounds in the active folder icon. The bounds
80  // is relative to AppsContainerView.
81  // Returns the bounds of top items' icon in sequence of top left, top right,
82  // bottom left, bottom right.
83  Rects GetTopItemIconBoundsInActiveFolder();
84
85  // Creates the transitional views for animating the top items in the folder
86  // when opening or closing a folder.
87  void CreateViewsForFolderTopItemsAnimation(
88      AppListFolderItem* active_folder, bool open_folder);
89
90  void PrepareToShowApps(AppListFolderItem* folder_item);
91
92  AppListModel* model_;
93  AppsGridView* apps_grid_view_;  // Owned by views hierarchy.
94  AppListFolderView* app_list_folder_view_;  // Owned by views hierarchy.
95  FolderBackgroundView* folder_background_view_;  // Owned by views hierarchy.
96  ShowState show_state_;
97
98  // The transitional views for animating the top items in folder
99  // when opening or closing a folder.
100  std::vector<views::View*> top_icon_views_;
101
102  size_t top_icon_animation_pending_count_;
103
104  DISALLOW_COPY_AND_ASSIGN(AppsContainerView);
105};
106
107}  // namespace app_list
108
109
110#endif  // UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
111