| // 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 UI_VIEWS_CONTROLS_SCROLLBAR_OVERLAY_SCROLL_BAR_H_ |
| #define UI_VIEWS_CONTROLS_SCROLLBAR_OVERLAY_SCROLL_BAR_H_ |
| |
| #include "ui/gfx/animation/slide_animation.h" |
| #include "ui/views/controls/scrollbar/base_scroll_bar.h" |
| |
| namespace views { |
| |
| // The transparent scrollbar which overlays its contents. |
| class VIEWS_EXPORT OverlayScrollBar : public BaseScrollBar { |
| public: |
| explicit OverlayScrollBar(bool horizontal); |
| virtual ~OverlayScrollBar(); |
| |
| protected: |
| // BaseScrollBar overrides: |
| virtual gfx::Rect GetTrackBounds() const OVERRIDE; |
| virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; |
| |
| // ScrollBar overrides: |
| virtual int GetLayoutSize() const OVERRIDE; |
| virtual int GetContentOverlapSize() const OVERRIDE; |
| virtual void OnMouseEnteredScrollView(const ui::MouseEvent& event) OVERRIDE; |
| virtual void OnMouseExitedScrollView(const ui::MouseEvent& event) OVERRIDE; |
| |
| // View overrides: |
| virtual gfx::Size GetPreferredSize() OVERRIDE; |
| virtual void Layout() OVERRIDE; |
| virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; |
| |
| private: |
| gfx::SlideAnimation animation_; |
| DISALLOW_COPY_AND_ASSIGN(OverlayScrollBar); |
| }; |
| |
| } // namespace views |
| |
| #endif // UI_VIEWS_CONTROLS_SCROLLBAR_OVERLAY_SCROLL_BAR_H_ |