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| 1 /* | |
| 2 * Copyright (C) 2009 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 #include "config.h" | |
| 32 #include "WebAccessibilityCacheImpl.h" | |
| 33 | |
| 34 #include "AccessibilityObject.h" | |
| 35 #include "AXObjectCache.h" | |
| 36 #include "Document.h" | |
| 37 #include "Frame.h" | |
| 38 | |
| 39 #include "WebAccessibilityObject.h" | |
| 40 #include "WebFrameImpl.h" | |
| 41 #include "WebViewImpl.h" | |
| 42 | |
| 43 using namespace WebCore; | |
| 44 | |
| 45 namespace WebKit { | |
| 46 | |
| 47 const int invalidObjectId = -1; | |
| 48 const int firstObjectId = 1000; | |
| 49 | |
| 50 static PassRefPtr<AccessibilityObject> toAccessibilityObject(const WebAccessibilityObject& object) | |
| 51 { | |
| 52 return object; | |
| 53 } | |
| 54 | |
| 55 // WebView ---------------------------------------------------------------- | |
| 56 | |
| 57 WebAccessibilityCache* WebAccessibilityCache::create() | |
| 58 { | |
| 59 return new WebAccessibilityCacheImpl(); | |
| 60 } | |
| 61 | |
| 62 // WeakHandle ------------------------------------------------------------- | |
| 63 | |
| 64 PassRefPtr<WebAccessibilityCacheImpl::WeakHandle> WebAccessibilityCacheImpl::WeakHandle::create(AccessibilityObject* object) | |
| 65 { | |
| 66 // FIXME: Remove resetting ref-count from AccessibilityObjectWrapper | |
| 67 // and convert to use adoptRef. | |
| 68 return new WebAccessibilityCacheImpl::WeakHandle(object); | |
| 69 } | |
| 70 | |
| 71 WebAccessibilityCacheImpl::WeakHandle::WeakHandle(AccessibilityObject* object) | |
| 72 : AccessibilityObjectWrapper(object) | |
| 73 { | |
| 74 m_object->setWrapper(this); | |
| 75 } | |
| 76 | |
| 77 // WebAccessibilityCacheImpl ---------------------------------------- | |
| 78 | |
| 79 void WebAccessibilityCacheImpl::WeakHandle::detach() | |
| 80 { | |
| 81 if (m_object) | |
| 82 m_object = 0; | |
| 83 } | |
| 84 | |
| 85 WebAccessibilityCacheImpl::WebAccessibilityCacheImpl() | |
| 86 : m_nextNewId(firstObjectId) | |
| 87 , m_initialized(false) | |
| 88 { | |
| 89 } | |
| 90 | |
| 91 WebAccessibilityCacheImpl::~WebAccessibilityCacheImpl() | |
| 92 { | |
| 93 } | |
| 94 | |
| 95 void WebAccessibilityCacheImpl::initialize(WebView* view) | |
| 96 { | |
| 97 AXObjectCache::enableAccessibility(); | |
| 98 WebAccessibilityObject root = view->accessibilityObject(); | |
| 99 if (root.isNull()) | |
| 100 return; | |
| 101 | |
| 102 RefPtr<AccessibilityObject> rootObject = toAccessibilityObject(root); | |
| 103 | |
| 104 // Insert root in hashmaps. | |
| 105 m_objectMap.set(m_nextNewId, WeakHandle::create(rootObject.get())); | |
| 106 m_idMap.set(rootObject.get(), m_nextNewId++); | |
| 107 | |
| 108 m_initialized = true; | |
| 109 } | |
| 110 | |
| 111 WebAccessibilityObject WebAccessibilityCacheImpl::getObjectById(int id) | |
| 112 { | |
| 113 ObjectMap::iterator it = m_objectMap.find(id); | |
| 114 | |
| 115 if (it == m_objectMap.end() || !it->second) | |
| 116 return WebAccessibilityObject(); | |
| 117 | |
| 118 return WebAccessibilityObject(it->second->accessibilityObject()); | |
| 119 } | |
| 120 | |
| 121 bool WebAccessibilityCacheImpl::isValidId(int id) const | |
| 122 { | |
| 123 return id >= firstObjectId; | |
| 124 } | |
| 125 | |
| 126 void WebAccessibilityCacheImpl::remove(int id) | |
| 127 { | |
| 128 ObjectMap::iterator it = m_objectMap.find(id); | |
| 129 | |
| 130 if (it == m_objectMap.end()) | |
| 131 return; | |
| 132 | |
| 133 if (it->second) { | |
| 134 // Erase element from reverse hashmap. | |
| 135 IdMap::iterator it2 = m_idMap.find(it->second->accessibilityObject()); | |
| 136 if (it2 != m_idMap.end()) | |
| 137 m_idMap.remove(it2); | |
| 138 } | |
| 139 | |
| 140 m_objectMap.remove(it); | |
| 141 } | |
| 142 | |
| 143 void WebAccessibilityCacheImpl::clear() | |
| 144 { | |
| 145 m_objectMap.clear(); | |
| 146 m_idMap.clear(); | |
| 147 } | |
| 148 | |
| 149 int WebAccessibilityCacheImpl::addOrGetId(const WebAccessibilityObject& object) | |
| 150 { | |
| 151 if (object.isNull()) | |
| 152 return invalidObjectId; | |
| 153 | |
| 154 RefPtr<AccessibilityObject> o = toAccessibilityObject(object); | |
| 155 | |
| 156 IdMap::iterator it = m_idMap.find(o.get()); | |
| 157 | |
| 158 if (it != m_idMap.end()) | |
| 159 return it->second; | |
| 160 | |
| 161 // Insert new accessibility object in hashmaps and return its newly | |
| 162 // assigned accessibility object id. | |
| 163 m_objectMap.set(m_nextNewId, WeakHandle::create(o.get())); | |
| 164 m_idMap.set(o.get(), m_nextNewId); | |
| 165 | |
| 166 return m_nextNewId++; | |
| 167 } | |
| 168 | |
| 169 } | |
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Chromium Code Reviews
Issue 385057:
Deleted webkit/api which now lives in webkit.org (Closed)
