| // Copyright 2013 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 ASH_SHELF_OVERFLOW_BUBBLE_H_ |
| #define ASH_SHELF_OVERFLOW_BUBBLE_H_ |
| |
| #include "ash/ash_export.h" |
| #include "base/macros.h" |
| #include "ui/events/event_handler.h" |
| #include "ui/views/widget/widget_observer.h" |
| |
| namespace views { |
| class Widget; |
| } |
| |
| namespace ui { |
| class LocatedEvent; |
| } |
| |
| namespace ash { |
| class OverflowBubbleView; |
| class OverflowButton; |
| class Shelf; |
| class ShelfView; |
| |
| // OverflowBubble shows shelf items that won't fit on the main shelf in a |
| // separate bubble. |
| class ASH_EXPORT OverflowBubble : public ui::EventHandler, |
| public views::WidgetObserver { |
| public: |
| // |shelf| is the shelf that spawns the bubble. |
| explicit OverflowBubble(Shelf* shelf); |
| ~OverflowBubble() override; |
| |
| // Shows an bubble pointing to |overflow_button| with |shelf_view| as its |
| // content. This |shelf_view| is different than the main shelf's view and |
| // only contains the overflow items. |
| void Show(OverflowButton* overflow_button, ShelfView* shelf_view); |
| |
| void Hide(); |
| |
| bool IsShowing() const { return !!bubble_; } |
| OverflowBubbleView* bubble_view() { return bubble_; } |
| |
| private: |
| void ProcessPressedEvent(ui::LocatedEvent* event); |
| |
| // ui::EventHandler: |
| void OnMouseEvent(ui::MouseEvent* event) override; |
| void OnTouchEvent(ui::TouchEvent* event) override; |
| |
| // views::WidgetObserver: |
| void OnWidgetDestroying(views::Widget* widget) override; |
| |
| Shelf* shelf_; |
| OverflowBubbleView* bubble_; // Owned by views hierarchy. |
| OverflowButton* overflow_button_; // Owned by ShelfView. |
| |
| DISALLOW_COPY_AND_ASSIGN(OverflowBubble); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SHELF_OVERFLOW_BUBBLE_H_ |