1// Copyright 2014 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_FOLDER_BACKGROUND_VIEW_H_
6#define UI_APP_LIST_VIEWS_FOLDER_BACKGROUND_VIEW_H_
7
8#include "ui/compositor/layer_animation_observer.h"
9#include "ui/views/view.h"
10
11namespace app_list {
12
13class AppListFolderView;
14
15// Draws the ink bubble indicating the boundary of the folder when user drags an
16// item inside a folder.
17class FolderBackgroundView : public views::View,
18                             public ui::ImplicitAnimationObserver {
19 public:
20  enum ShowState {
21    NO_BUBBLE,
22    SHOW_BUBBLE,
23    HIDE_BUBBLE,
24  };
25
26  FolderBackgroundView();
27  virtual ~FolderBackgroundView();
28
29  // Updates the ink bubble's ShowState.
30  void UpdateFolderContainerBubble(ShowState state);
31
32  // Returns the radius of the folder container ink bubble.
33  int GetFolderContainerBubbleRadius() const;
34
35  void set_folder_view(AppListFolderView* folder_view) {
36    folder_view_ = folder_view;
37  }
38
39 private:
40  // views::View overrides:
41  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
42
43  // ui::ImplicitAnimationObserver overrides:
44  virtual void OnImplicitAnimationsCompleted() OVERRIDE;
45
46  AppListFolderView* folder_view_;
47  ShowState show_state_;
48
49  DISALLOW_COPY_AND_ASSIGN(FolderBackgroundView);
50};
51
52}  // namespace app_list
53
54#endif  // UI_APP_LIST_VIEWS_FOLDER_BACKGROUND_VIEW_H_
55