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 #ifndef ApplicationCacheHost_h 32 #define ApplicationCacheHost_h 33 34 #include "platform/weborigin/KURL.h" 35 #include "wtf/Deque.h" 36 #include "wtf/OwnPtr.h" 37 #include "wtf/PassRefPtr.h" 38 #include "wtf/RefPtr.h" 39 #include "wtf/Vector.h" 40 41 namespace WebCore { 42 class ApplicationCache; 43 class DocumentLoader; 44 class Frame; 45 class ResourceLoader; 46 class ResourceError; 47 class ResourceRequest; 48 class ResourceResponse; 49 class SubstituteData; 50 class ApplicationCacheHostInternal; 51 52 class ApplicationCacheHost { 53 WTF_MAKE_NONCOPYABLE(ApplicationCacheHost); WTF_MAKE_FAST_ALLOCATED; 54 public: 55 // The Status numeric values are specified in the HTML5 spec. 56 enum Status { 57 UNCACHED = 0, 58 IDLE = 1, 59 CHECKING = 2, 60 DOWNLOADING = 3, 61 UPDATEREADY = 4, 62 OBSOLETE = 5 63 }; 64 65 enum EventID { 66 CHECKING_EVENT = 0, 67 ERROR_EVENT, 68 NOUPDATE_EVENT, 69 DOWNLOADING_EVENT, 70 PROGRESS_EVENT, 71 UPDATEREADY_EVENT, 72 CACHED_EVENT, 73 OBSOLETE_EVENT // Must remain the last value, this is used to size arrays. 74 }; 75 76 struct CacheInfo { CacheInfoCacheInfo77 CacheInfo(const KURL& manifest, double creationTime, double updateTime, long long size) 78 : m_manifest(manifest) 79 , m_creationTime(creationTime) 80 , m_updateTime(updateTime) 81 , m_size(size) { } 82 KURL m_manifest; 83 double m_creationTime; 84 double m_updateTime; 85 long long m_size; 86 }; 87 88 struct ResourceInfo { ResourceInfoResourceInfo89 ResourceInfo(const KURL& resource, bool isMaster, bool isManifest, bool isFallback, bool isForeign, bool isExplicit, long long size) 90 : m_resource(resource) 91 , m_isMaster(isMaster) 92 , m_isManifest(isManifest) 93 , m_isFallback(isFallback) 94 , m_isForeign(isForeign) 95 , m_isExplicit(isExplicit) 96 , m_size(size) { } 97 KURL m_resource; 98 bool m_isMaster; 99 bool m_isManifest; 100 bool m_isFallback; 101 bool m_isForeign; 102 bool m_isExplicit; 103 long long m_size; 104 }; 105 106 typedef Vector<ResourceInfo> ResourceInfoList; 107 108 ApplicationCacheHost(DocumentLoader*); 109 ~ApplicationCacheHost(); 110 111 void selectCacheWithoutManifest(); 112 void selectCacheWithManifest(const KURL& manifestURL); 113 114 void willStartLoadingMainResource(ResourceRequest&); 115 void didReceiveResponseForMainResource(const ResourceResponse&); 116 void mainResourceDataReceived(const char* data, int length); 117 void finishedLoadingMainResource(); 118 void failedLoadingMainResource(); 119 120 void willStartLoadingResource(ResourceRequest&); 121 122 Status status() const; 123 bool update(); 124 bool swapCache(); 125 void abort(); 126 127 void setApplicationCache(ApplicationCache*); 128 void notifyApplicationCache(EventID, int progressTotal, int progressDone); 129 130 void stopDeferringEvents(); // Also raises the events that have been queued up. 131 132 void fillResourceList(ResourceInfoList*); 133 CacheInfo applicationCacheInfo(); 134 135 private: 136 bool isApplicationCacheEnabled(); documentLoader()137 DocumentLoader* documentLoader() const { return m_documentLoader; } 138 139 struct DeferredEvent { 140 EventID eventID; 141 int progressTotal; 142 int progressDone; DeferredEventDeferredEvent143 DeferredEvent(EventID id, int total, int done) : eventID(id), progressTotal(total), progressDone(done) { } 144 }; 145 146 ApplicationCache* m_domApplicationCache; 147 DocumentLoader* m_documentLoader; 148 bool m_defersEvents; // Events are deferred until after document onload. 149 Vector<DeferredEvent> m_deferredEvents; 150 151 void dispatchDOMEvent(EventID, int progressTotal, int progressDone); 152 153 friend class ApplicationCacheHostInternal; 154 OwnPtr<ApplicationCacheHostInternal> m_internal; 155 }; 156 157 } // namespace WebCore 158 159 #endif // ApplicationCacheHost_h 160