AccessibilityScrollView.h revision 2fc2651226baac27029e38c9d6ef883fa32084db
1/* 2 * Copyright (C) 2011 Apple 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef AccessibilityScrollView_h 27#define AccessibilityScrollView_h 28 29#include "AccessibilityObject.h" 30 31namespace WebCore { 32 33class AccessibilityScrollbar; 34class Scrollbar; 35class ScrollView; 36 37class AccessibilityScrollView : public AccessibilityObject { 38public: 39 static PassRefPtr<AccessibilityScrollView> create(ScrollView*); 40 virtual AccessibilityRole roleValue() const { return ScrollAreaRole; } 41 ScrollView* scrollView() const { return m_scrollView.get(); } 42 43private: 44 AccessibilityScrollView(ScrollView*); 45 46 virtual bool accessibilityIsIgnored() const { return false; } 47 virtual bool isAccessibilityScrollView() const { return true; } 48 virtual AccessibilityObject* scrollBar(AccessibilityOrientation) const; 49 virtual void addChildren(); 50 virtual AccessibilityObject* accessibilityHitTest(const IntPoint&) const; 51 virtual const AccessibilityChildrenVector& children(); 52 virtual void updateChildrenIfNecessary(); 53 54 virtual FrameView* documentFrameView() const; 55 virtual IntRect elementRect() const; 56 virtual AccessibilityObject* parentObject() const; 57 58 AccessibilityObject* webAreaObject() const; 59 AccessibilityScrollbar* addChildScrollbar(Scrollbar*); 60 void removeChildScrollbar(AccessibilityObject*); 61 62 RefPtr<ScrollView> m_scrollView; 63 RefPtr<AccessibilityObject> m_horizontalScrollbar; 64 RefPtr<AccessibilityObject> m_verticalScrollbar; 65}; 66 67inline AccessibilityScrollView* toAccessibilityScrollView(AccessibilityObject* object) 68{ 69 ASSERT(!object || object->isAccessibilityScrollView()); 70 if (!object->isAccessibilityScrollView()) 71 return 0; 72 73 return static_cast<AccessibilityScrollView*>(object); 74} 75 76} // namespace WebCore 77 78#endif // AccessibilityScrollView_h 79 80