1 /* 2 * Copyright (C) 2010 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebScrollbarImpl_h 32 #define WebScrollbarImpl_h 33 34 #include "ScrollableArea.h" 35 #include "WebScrollbar.h" 36 37 #include <wtf/RefPtr.h> 38 39 namespace WebCore { 40 class Scrollbar; 41 } 42 43 namespace WebKit { 44 45 class WebScrollbarImpl : public WebScrollbar, 46 public WebCore::ScrollableArea { 47 public: 48 WebScrollbarImpl(WebScrollbarClient*, Orientation orientation); 49 ~WebScrollbarImpl(); 50 51 // WebKit::WebScrollbar methods 52 virtual void setLocation(const WebRect&); 53 virtual int value() const; 54 virtual void setValue(int position); 55 virtual void setDocumentSize(int size); 56 virtual void scroll(ScrollDirection, ScrollGranularity, float multiplier); 57 virtual void paint(WebCanvas*, const WebRect&); 58 virtual bool handleInputEvent(const WebInputEvent&); 59 60 // WebCore::ScrollableArea methods 61 virtual int scrollSize(WebCore::ScrollbarOrientation) const; 62 virtual int scrollPosition(WebCore::Scrollbar*) const; 63 virtual void setScrollOffset(const WebCore::IntPoint&); 64 virtual void invalidateScrollbarRect(WebCore::Scrollbar*, const WebCore::IntRect&); 65 virtual void invalidateScrollCornerRect(const WebCore::IntRect&); 66 virtual bool isActive() const; 67 virtual WebCore::IntRect scrollCornerRect() const { return WebCore::IntRect(); } 68 virtual bool isScrollCornerVisible() const; 69 virtual void getTickmarks(Vector<WebCore::IntRect>&) const; 70 virtual WebCore::Scrollbar* horizontalScrollbar() const; 71 virtual WebCore::Scrollbar* verticalScrollbar() const; 72 73 private: 74 bool onMouseDown(const WebInputEvent& event); 75 bool onMouseUp(const WebInputEvent& event); 76 bool onMouseMove(const WebInputEvent& event); 77 bool onMouseLeave(const WebInputEvent& event); 78 bool onMouseWheel(const WebInputEvent& event); 79 bool onKeyDown(const WebInputEvent& event); 80 81 WebScrollbarClient* m_client; 82 83 int m_scrollOffset; 84 RefPtr<WebCore::Scrollbar> m_scrollbar; 85 }; 86 87 } // namespace WebKit 88 89 #endif 90
