1 /* 2 * Copyright (C) 2010 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 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef AccessibilityScrollbar_h 30 #define AccessibilityScrollbar_h 31 32 #include "AccessibilityObject.h" 33 34 namespace WebCore { 35 36 class Scrollbar; 37 38 class AccessibilityScrollbar : public AccessibilityObject { 39 public: 40 static PassRefPtr<AccessibilityScrollbar> create(); 41 42 void setScrollbar(Scrollbar* scrollbar) { m_scrollbar = scrollbar; } 43 44 virtual AccessibilityRole roleValue() const { return ScrollBarRole; } 45 46 virtual float valueForRange() const; 47 48 private: 49 AccessibilityScrollbar(); 50 51 virtual bool accessibilityIsIgnored() const { return false; } 52 53 // These should never be reached since the AccessibilityScrollbar is not part of 54 // the accessibility tree. 55 virtual IntSize size() const { ASSERT_NOT_REACHED(); return IntSize(); } 56 virtual IntRect elementRect() const { ASSERT_NOT_REACHED(); return IntRect(); } 57 virtual AccessibilityObject* parentObject() const { ASSERT_NOT_REACHED(); return 0; } 58 59 Scrollbar* m_scrollbar; 60 }; 61 62 } // namespace WebCore 63 64 #endif // AccessibilityScrollbar_h 65
