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Diffstat (limited to 'WebCore/loader/appcache/ApplicationCacheHost.h')
-rw-r--r-- | WebCore/loader/appcache/ApplicationCacheHost.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/WebCore/loader/appcache/ApplicationCacheHost.h b/WebCore/loader/appcache/ApplicationCacheHost.h new file mode 100644 index 0000000..cb68862 --- /dev/null +++ b/WebCore/loader/appcache/ApplicationCacheHost.h @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2009, Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef ApplicationCacheHost_h +#define ApplicationCacheHost_h + +#if ENABLE(OFFLINE_WEB_APPLICATIONS) + +#include <wtf/OwnPtr.h> +#include <wtf/PassRefPtr.h> +#include <wtf/RefPtr.h> +#include <wtf/Vector.h> + +namespace WebCore { + + class DOMApplicationCache; + class DocumentLoader; + class KURL; + class ResourceLoader; + class ResourceError; + struct ResourceRequest; + class ResourceResponse; + class SubstituteData; +#if PLATFORM(CHROMIUM) + class ApplicationCacheHostInternal; +#else + class ApplicationCache; + class ApplicationCacheGroup; + class ApplicationCacheResource; + class ApplicationCacheStorage; +#endif + + class ApplicationCacheHost { + public: + // The Status numeric values are specified in the HTML5 spec. + enum Status { + UNCACHED = 0, + IDLE = 1, + CHECKING = 2, + DOWNLOADING = 3, + UPDATEREADY = 4, + OBSOLETE = 5 + }; + + enum EventID { + CHECKING_EVENT = 0, + ERROR_EVENT, + NOUPDATE_EVENT, + DOWNLOADING_EVENT, + PROGRESS_EVENT, + UPDATEREADY_EVENT, + CACHED_EVENT, + OBSOLETE_EVENT // Must remain the last value, this is used to size arrays. + }; + + ApplicationCacheHost(DocumentLoader*); + ~ApplicationCacheHost(); + + void selectCacheWithoutManifest(); + void selectCacheWithManifest(const KURL& manifestURL); + + void maybeLoadMainResource(ResourceRequest&, SubstituteData&); + bool maybeLoadFallbackForMainResponse(const ResourceRequest&, const ResourceResponse&); + bool maybeLoadFallbackForMainError(const ResourceRequest&, const ResourceError&); + void mainResourceDataReceived(const char* data, int length, long long lengthReceived, bool allAtOnce); + void finishedLoadingMainResource(); + void failedLoadingMainResource(); + + bool maybeLoadResource(ResourceLoader*, ResourceRequest&, const KURL& originalURL); + bool maybeLoadFallbackForRedirect(ResourceLoader*, ResourceRequest&, const ResourceResponse&); + bool maybeLoadFallbackForResponse(ResourceLoader*, const ResourceResponse&); + bool maybeLoadFallbackForError(ResourceLoader*, const ResourceError&); + + bool maybeLoadSynchronously(ResourceRequest&, ResourceError&, ResourceResponse&, Vector<char>& data); + void maybeLoadFallbackSynchronously(const ResourceRequest&, ResourceError&, ResourceResponse&, Vector<char>& data); + + bool canCacheInPageCache() const; + + Status status() const; + bool update(); + bool swapCache(); + + void setDOMApplicationCache(DOMApplicationCache* domApplicationCache); + void notifyEventListener(EventID id); + + private: + bool isApplicationCacheEnabled(); + DocumentLoader* documentLoader() { return m_documentLoader; } + + DOMApplicationCache* m_domApplicationCache; + DocumentLoader* m_documentLoader; + +#if PLATFORM(CHROMIUM) + friend class ApplicationCacheHostInternal; + OwnPtr<ApplicationCacheHostInternal> m_internal; +#else + friend class ApplicationCacheGroup; + friend class ApplicationCacheStorage; + + bool scheduleLoadFallbackResourceFromApplicationCache(ResourceLoader*, ApplicationCache* = 0); + bool shouldLoadResourceFromApplicationCache(const ResourceRequest&, ApplicationCacheResource*&); + bool getApplicationCacheFallbackResource(const ResourceRequest&, ApplicationCacheResource*&, ApplicationCache* = 0); + void setCandidateApplicationCacheGroup(ApplicationCacheGroup* group); + ApplicationCacheGroup* candidateApplicationCacheGroup() const { return m_candidateApplicationCacheGroup; } + void setApplicationCache(PassRefPtr<ApplicationCache> applicationCache); + ApplicationCache* applicationCache() const { return m_applicationCache.get(); } + ApplicationCache* mainResourceApplicationCache() const { return m_mainResourceApplicationCache.get(); } + + + // The application cache that the document loader is associated with (if any). + RefPtr<ApplicationCache> m_applicationCache; + + // Before an application cache has finished loading, this will be the candidate application + // group that the document loader is associated with. + ApplicationCacheGroup* m_candidateApplicationCacheGroup; + + // This is the application cache the main resource was loaded from (if any). + RefPtr<ApplicationCache> m_mainResourceApplicationCache; +#endif + }; + +} // namespace WebCore + +#endif // ENABLE(OFFLINE_WEB_APPLICATIONS) +#endif // ApplicationCacheHost_h |