1643ca7872b450ea4efacab6188849e5aac2ba161Steve Block/* 2643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * Copyright (C) 2009 Google Inc. All rights reserved. 3643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 4643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * Redistribution and use in source and binary forms, with or without 5643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * modification, are permitted provided that the following conditions are 6643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * met: 7643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 8643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Redistributions of source code must retain the above copyright 9643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * notice, this list of conditions and the following disclaimer. 10643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Redistributions in binary form must reproduce the above 11643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * copyright notice, this list of conditions and the following disclaimer 12643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * in the documentation and/or other materials provided with the 13643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * distribution. 14643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Neither the name of Google Inc. nor the names of its 15643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * contributors may be used to endorse or promote products derived from 16643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * this software without specific prior written permission. 17643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 18643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29643ca7872b450ea4efacab6188849e5aac2ba161Steve Block */ 30643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 31643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#ifndef WebAccessibilityCacheImpl_h 32643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#define WebAccessibilityCacheImpl_h 33643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 34643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include "AccessibilityObjectWrapper.h" 35643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include "WebAccessibilityCache.h" 36643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include <wtf/HashMap.h> 37643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include <wtf/PassRefPtr.h> 38643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 39643ca7872b450ea4efacab6188849e5aac2ba161Steve Blocknamespace WebKit { 40643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 41643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// FIXME: Should be eliminated to use AXObjectCache instead. 42643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockclass WebAccessibilityCacheImpl : public WebKit::WebAccessibilityCache { 43643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockpublic: 44643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual void initialize(WebView* view); 45643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual bool isInitialized() const { return m_initialized; } 46643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 47643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual WebAccessibilityObject getObjectById(int); 48643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual int addOrGetId(const WebKit::WebAccessibilityObject&); 49a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch virtual bool isCached(const WebAccessibilityObject&); 50643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 51643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual void remove(int); 52643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual void clear(); 53643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 54643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockprotected: 55643ca7872b450ea4efacab6188849e5aac2ba161Steve Block friend class WebKit::WebAccessibilityCache; 56643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 57643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebAccessibilityCacheImpl(); 58643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ~WebAccessibilityCacheImpl(); 59643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 60643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockprivate: 61643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // FIXME: This can be just part of Chromium's AccessibilityObjectWrapper. 62643ca7872b450ea4efacab6188849e5aac2ba161Steve Block class WeakHandle : public WebCore::AccessibilityObjectWrapper { 63643ca7872b450ea4efacab6188849e5aac2ba161Steve Block public: 64643ca7872b450ea4efacab6188849e5aac2ba161Steve Block static PassRefPtr<WeakHandle> create(WebCore::AccessibilityObject*); 65643ca7872b450ea4efacab6188849e5aac2ba161Steve Block virtual void detach(); 66643ca7872b450ea4efacab6188849e5aac2ba161Steve Block private: 67643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WeakHandle(WebCore::AccessibilityObject*); 68643ca7872b450ea4efacab6188849e5aac2ba161Steve Block }; 69643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 70643ca7872b450ea4efacab6188849e5aac2ba161Steve Block typedef HashMap<int, RefPtr<WeakHandle> > ObjectMap; 71643ca7872b450ea4efacab6188849e5aac2ba161Steve Block typedef HashMap<WebCore::AccessibilityObject*, int> IdMap; 72643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 73643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Hashmap for caching of elements in use by the AT, mapping id (int) to 74643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // WebAccessibilityObject. 75643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ObjectMap m_objectMap; 76643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Hashmap for caching of elements in use by the AT, mapping a 77643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // AccessibilityObject pointer to its id (int). Needed for reverse lookup, 78643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // to ensure unnecessary duplicate entries are not created in the 79643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // ObjectMap and for focus changes in WebKit. 80643ca7872b450ea4efacab6188849e5aac2ba161Steve Block IdMap m_idMap; 81643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 82643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Unique identifier for retrieving an accessibility object from the page's 83643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // hashmaps. Id is always 0 for the root of the accessibility object 84643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // hierarchy (on a per-renderer process basis). 85643ca7872b450ea4efacab6188849e5aac2ba161Steve Block int m_nextNewId; 86643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 87643ca7872b450ea4efacab6188849e5aac2ba161Steve Block bool m_initialized; 88643ca7872b450ea4efacab6188849e5aac2ba161Steve Block}; 89643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 90643ca7872b450ea4efacab6188849e5aac2ba161Steve Block} 91643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 92643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#endif 93