1 /* 2 * Copyright (C) 2008 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 #include "config.h" 30 #include "core/accessibility/AccessibilityImageMapLink.h" 31 32 #include "core/accessibility/AXObjectCache.h" 33 #include "core/accessibility/AccessibilityRenderObject.h" 34 35 namespace WebCore { 36 37 using namespace HTMLNames; 38 39 AccessibilityImageMapLink::AccessibilityImageMapLink() 40 : m_areaElement(0) 41 , m_mapElement(0) 42 { 43 } 44 45 AccessibilityImageMapLink::~AccessibilityImageMapLink() 46 { 47 } 48 49 PassRefPtr<AccessibilityImageMapLink> AccessibilityImageMapLink::create() 50 { 51 return adoptRef(new AccessibilityImageMapLink()); 52 } 53 54 AccessibilityObject* AccessibilityImageMapLink::parentObject() const 55 { 56 if (m_parent) 57 return m_parent; 58 59 if (!m_mapElement.get() || !m_mapElement->renderer()) 60 return 0; 61 62 return m_mapElement->document()->axObjectCache()->getOrCreate(m_mapElement->renderer()); 63 } 64 65 AccessibilityRole AccessibilityImageMapLink::roleValue() const 66 { 67 if (!m_areaElement) 68 return WebCoreLinkRole; 69 70 const AtomicString& ariaRole = getAttribute(roleAttr); 71 if (!ariaRole.isEmpty()) 72 return AccessibilityObject::ariaRoleToWebCoreRole(ariaRole); 73 74 return WebCoreLinkRole; 75 } 76 77 Element* AccessibilityImageMapLink::actionElement() const 78 { 79 return anchorElement(); 80 } 81 82 Element* AccessibilityImageMapLink::anchorElement() const 83 { 84 return m_areaElement.get(); 85 } 86 87 KURL AccessibilityImageMapLink::url() const 88 { 89 if (!m_areaElement.get()) 90 return KURL(); 91 92 return m_areaElement->href(); 93 } 94 95 void AccessibilityImageMapLink::accessibilityText(Vector<AccessibilityText>& textOrder) 96 { 97 String description = accessibilityDescription(); 98 if (!description.isEmpty()) 99 textOrder.append(AccessibilityText(description, AlternativeText)); 100 101 const AtomicString& titleText = getAttribute(titleAttr); 102 if (!titleText.isEmpty()) 103 textOrder.append(AccessibilityText(titleText, TitleTagText)); 104 105 const AtomicString& summary = getAttribute(summaryAttr); 106 if (!summary.isEmpty()) 107 textOrder.append(AccessibilityText(summary, SummaryText)); 108 } 109 110 String AccessibilityImageMapLink::accessibilityDescription() const 111 { 112 const AtomicString& ariaLabel = getAttribute(aria_labelAttr); 113 if (!ariaLabel.isEmpty()) 114 return ariaLabel; 115 const AtomicString& alt = getAttribute(altAttr); 116 if (!alt.isEmpty()) 117 return alt; 118 119 return String(); 120 } 121 122 String AccessibilityImageMapLink::title() const 123 { 124 const AtomicString& title = getAttribute(titleAttr); 125 if (!title.isEmpty()) 126 return title; 127 const AtomicString& summary = getAttribute(summaryAttr); 128 if (!summary.isEmpty()) 129 return summary; 130 131 return String(); 132 } 133 134 LayoutRect AccessibilityImageMapLink::elementRect() const 135 { 136 if (!m_mapElement.get() || !m_areaElement.get()) 137 return LayoutRect(); 138 139 RenderObject* renderer; 140 if (m_parent && m_parent->isAccessibilityRenderObject()) 141 renderer = static_cast<AccessibilityRenderObject*>(m_parent)->renderer(); 142 else 143 renderer = m_mapElement->renderer(); 144 145 if (!renderer) 146 return LayoutRect(); 147 148 return m_areaElement->computeRect(renderer); 149 } 150 151 } // namespace WebCore 152