Home | History | Annotate | Download | only in shelf 
      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_VIEW_H_
      6 #define ASH_SHELF_OVERFLOW_BUBBLE_VIEW_H_
      7 
      8 #include "ash/ash_export.h"
      9 #include "base/basictypes.h"
     10 #include "base/compiler_specific.h"
     11 #include "ui/views/bubble/bubble_delegate.h"
     12 
     13 namespace ash {
     14 
     15 namespace test {
     16 class OverflowBubbleViewTestAPI;
     17 }
     18 
     19 namespace internal {
     20 
     21 class ShelfLayoutManager;
     22 class ShelfView;
     23 
     24 // OverflowBubbleView hosts a ShelfView to display overflown items.
     25 // Exports to access this class from OverflowBubbleViewTestAPI.
     26 class ASH_EXPORT OverflowBubbleView : public views::BubbleDelegateView {
     27  public:
     28   OverflowBubbleView();
     29   virtual ~OverflowBubbleView();
     30 
     31   void InitOverflowBubble(views::View* anchor, ShelfView* shelf_view);
     32 
     33   // views::BubbleDelegateView overrides:
     34   virtual gfx::Rect GetBubbleBounds() OVERRIDE;
     35 
     36  private:
     37   friend class test::OverflowBubbleViewTestAPI;
     38 
     39   bool IsHorizontalAlignment() const;
     40 
     41   const gfx::Size GetContentsSize() const;
     42 
     43   // Gets arrow location based on shelf alignment.
     44   views::BubbleBorder::Arrow GetBubbleArrow() const;
     45 
     46   void ScrollByXOffset(int x_offset);
     47   void ScrollByYOffset(int y_offset);
     48 
     49   // views::View overrides:
     50   virtual gfx::Size GetPreferredSize() OVERRIDE;
     51   virtual void Layout() OVERRIDE;
     52   virtual void ChildPreferredSizeChanged(views::View* child) OVERRIDE;
     53   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
     54 
     55   // ui::EventHandler overrides:
     56   virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
     57 
     58   ShelfLayoutManager* GetShelfLayoutManagerForLauncher() const;
     59 
     60   ShelfView* shelf_view_;  // Owned by views hierarchy.
     61   gfx::Vector2d scroll_offset_;
     62 
     63   DISALLOW_COPY_AND_ASSIGN(OverflowBubbleView);
     64 };
     65 
     66 }  // namespace internal
     67 }  // namespace ash
     68 
     69 #endif  // ASH_SHELF_OVERFLOW_BUBBLE_VIEW_H_
     70