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 ASH_SHELF_OVERFLOW_BUBBLE_H_
6#define ASH_SHELF_OVERFLOW_BUBBLE_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "ui/events/event_handler.h"
11#include "ui/views/widget/widget_observer.h"
12
13namespace ui {
14class LocatedEvent;
15}
16
17namespace views {
18class View;
19}
20
21namespace ash {
22class OverflowBubbleView;
23class ShelfLayoutManager;
24class ShelfView;
25
26// OverflowBubble displays the overflown launcher items in a bubble.
27class OverflowBubble : public ui::EventHandler,
28                       public views::WidgetObserver {
29 public:
30  OverflowBubble();
31  virtual ~OverflowBubble();
32
33  // Shows an bubble pointing to |anchor| with |shelf_view| as its content.
34  void Show(views::View* anchor, ShelfView* shelf_view);
35
36  void Hide();
37
38  // This method as name indicates will hide bubble and schedule paint
39  // for overflow button.
40  void HideBubbleAndRefreshButton();
41
42  bool IsShowing() const { return !!bubble_; }
43  ShelfView* shelf_view() { return shelf_view_; }
44  OverflowBubbleView* bubble_view() { return bubble_; }
45
46 private:
47  void ProcessPressedEvent(ui::LocatedEvent* event);
48
49  // Overridden from ui::EventHandler:
50  virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
51  virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
52
53  // Overridden from views::WidgetObserver:
54  virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
55
56  OverflowBubbleView* bubble_;  // Owned by views hierarchy.
57  views::View* anchor_;  // Owned by ShelfView.
58  ShelfView* shelf_view_;  // Owned by |bubble_|.
59
60  DISALLOW_COPY_AND_ASSIGN(OverflowBubble);
61};
62
63}  // namespace ash
64
65#endif  // ASH_SHELF_OVERFLOW_BUBBLE_H_
66