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      1 /*
      2  * Copyright (C) 2012 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1.  Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  * 2.  Redistributions in binary form must reproduce the above copyright
     10  *     notice, this list of conditions and the following disclaimer in the
     11  *     documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #ifndef WebScrollbarImpl_h
     26 #define WebScrollbarImpl_h
     27 
     28 #include "platform/PlatformExport.h"
     29 #include "public/platform/WebScrollbar.h"
     30 
     31 namespace WebCore {
     32 class Scrollbar;
     33 }
     34 
     35 namespace blink {
     36 
     37 class PLATFORM_EXPORT WebScrollbarImpl : public WebScrollbar {
     38 public:
     39     explicit WebScrollbarImpl(WebCore::Scrollbar*);
     40 
     41     // Implement blink::WebScrollbar methods
     42     virtual bool isOverlay() const OVERRIDE;
     43     virtual int value() const OVERRIDE;
     44     virtual WebPoint location() const OVERRIDE;
     45     virtual WebSize size() const OVERRIDE;
     46     virtual bool enabled() const OVERRIDE;
     47     virtual int maximum() const OVERRIDE;
     48     virtual int totalSize() const OVERRIDE;
     49     virtual bool isScrollViewScrollbar() const OVERRIDE;
     50     virtual bool isScrollableAreaActive() const OVERRIDE;
     51     virtual void getTickmarks(WebVector<WebRect>& tickmarks) const OVERRIDE;
     52     virtual ScrollbarControlSize controlSize() const OVERRIDE;
     53     virtual ScrollbarPart pressedPart() const OVERRIDE;
     54     virtual ScrollbarPart hoveredPart() const OVERRIDE;
     55     virtual ScrollbarOverlayStyle scrollbarOverlayStyle() const OVERRIDE;
     56     virtual bool isCustomScrollbar() const OVERRIDE;
     57     virtual Orientation orientation() const OVERRIDE;
     58     virtual bool isLeftSideVerticalScrollbar() const OVERRIDE;
     59     virtual bool isAlphaLocked() const OVERRIDE;
     60     virtual void setIsAlphaLocked(bool) OVERRIDE;
     61 
     62 private:
     63     RefPtr<WebCore::Scrollbar> m_scrollbar;
     64 };
     65 
     66 } // namespace blink
     67 
     68 #endif
     69