diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheStorage.h')
-rw-r--r-- | src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheStorage.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheStorage.h b/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheStorage.h new file mode 100644 index 0000000000..cf64dd44be --- /dev/null +++ b/src/3rdparty/webkit/WebCore/loader/appcache/ApplicationCacheStorage.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2008 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 ApplicationCacheStorage_h +#define ApplicationCacheStorage_h + +#if ENABLE(OFFLINE_WEB_APPLICATIONS) + +#include "PlatformString.h" +#include "SQLiteDatabase.h" +#include "StringHash.h" + +#include <wtf/HashCountedSet.h> + +namespace WebCore { + +class ApplicationCache; +class ApplicationCacheGroup; +class ApplicationCacheResource; +class KURL; + +class ApplicationCacheStorage { +public: + void setCacheDirectory(const String&); + const String& cacheDirectory() const; + + ApplicationCacheGroup* cacheGroupForURL(const KURL&); // Cache to load a main resource from. + ApplicationCacheGroup* fallbackCacheGroupForURL(const KURL&); // Cache that has a fallback entry to load a main resource from if normal loading fails. + + ApplicationCacheGroup* findOrCreateCacheGroup(const KURL& manifestURL); + void cacheGroupDestroyed(ApplicationCacheGroup*); + + bool storeNewestCache(ApplicationCacheGroup*); + void store(ApplicationCacheResource*, ApplicationCache*); + bool storeUpdatedType(ApplicationCacheResource*, ApplicationCache*); + + void remove(ApplicationCache*); + + void empty(); + + static bool storeCopyOfCache(const String& cacheDirectory, ApplicationCache*); + +private: + PassRefPtr<ApplicationCache> loadCache(unsigned storageID); + ApplicationCacheGroup* loadCacheGroup(const KURL& manifestURL); + + bool store(ApplicationCacheGroup*); + bool store(ApplicationCache*); + bool store(ApplicationCacheResource*, unsigned cacheStorageID); + + void loadManifestHostHashes(); + + void verifySchemaVersion(); + + void openDatabase(bool createIfDoesNotExist); + + bool executeStatement(SQLiteStatement&); + bool executeSQLCommand(const String&); + + String m_cacheDirectory; + + SQLiteDatabase m_database; + + // In order to quickly determine if a given resource exists in an application cache, + // we keep a hash set of the hosts of the manifest URLs of all cache groups. + HashCountedSet<unsigned, AlreadyHashed> m_cacheHostSet; + + typedef HashMap<String, ApplicationCacheGroup*> CacheGroupMap; + CacheGroupMap m_cachesInMemory; +}; + +ApplicationCacheStorage& cacheStorage(); + +} // namespace WebCore + +#endif // ENABLE(OFFLINE_WEB_APPLICATIONS) + +#endif // ApplicationCacheStorage_h |