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(Scrollbar*); 41 42 Scrollbar* scrollbar() const { return m_scrollbar.get(); } 43 void setParent(AccessibilityObject* parent) { m_parent = parent; } 44 45 private: 46 AccessibilityScrollbar(Scrollbar*); 47 48 virtual bool accessibilityIsIgnored() const { return false; } 49 virtual bool canSetValueAttribute() const { return true; } 50 virtual bool canSetNumericValue() const { return true; } 51 52 virtual bool isAccessibilityScrollbar() const { return true; } 53 virtual AccessibilityObject* parentObject() const { return m_parent; } 54 virtual IntRect elementRect() const; 55 56 virtual AccessibilityRole roleValue() const { return ScrollBarRole; } 57 virtual AccessibilityOrientation orientation() const; 58 virtual Document* document() const; 59 virtual bool isEnabled() const; 60 61 // Assumes float [0..1] 62 virtual void setValue(float); 63 virtual float valueForRange() const; 64 65 RefPtr<Scrollbar> m_scrollbar; 66 AccessibilityOrientation m_orientation; 67 AccessibilityObject* m_parent; 68 }; 69 70 } // namespace WebCore 71 72 #endif // AccessibilityScrollbar_h 73
