src/cc/blink/scrollbar_impl.h

   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 CC_BLINK_SCROLLBAR_IMPL_H_
   6 #define CC_BLINK_SCROLLBAR_IMPL_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "cc/input/scrollbar.h"
  11 #include "third_party/WebKit/public/platform/WebScrollbarThemePainter.h"
  12
  13 namespace blink {
  14 class WebScrollbar;
  15 class WebScrollbarThemeGeometry;
  16 }
  17
  18 namespace cc_blink {
  19
  20 class ScrollbarImpl : public cc::Scrollbar {
  21  public:
  22   ScrollbarImpl(scoped_ptr<blink::WebScrollbar> scrollbar,
  23                 blink::WebScrollbarThemePainter painter,
  24                 scoped_ptr<blink::WebScrollbarThemeGeometry> geometry);
  25   ~ScrollbarImpl() override;
  26
  27   // cc::Scrollbar implementation.
  28   cc::ScrollbarOrientation Orientation() const override;
  29   bool IsLeftSideVerticalScrollbar() const override;
  30   bool HasThumb() const override;
  31   bool IsOverlay() const override;
  32   gfx::Point Location() const override;
  33   int ThumbThickness() const override;
  34   int ThumbLength() const override;
  35   gfx::Rect TrackRect() const override;
  36   void PaintPart(SkCanvas* canvas,
  37                  cc::ScrollbarPart part,
  38                  const gfx::Rect& content_rect) override;
  39
  40  private:
  41   scoped_ptr<blink::WebScrollbar> scrollbar_;
  42   blink::WebScrollbarThemePainter painter_;
  43   scoped_ptr<blink::WebScrollbarThemeGeometry> geometry_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(ScrollbarImpl);
  46 };
  47
  48 }  // namespace cc_blink
  49
  50 #endif  // CC_BLINK_SCROLLBAR_IMPL_H_