diff options
Diffstat (limited to 'WebCore/storage/AbstractDatabase.h')
-rw-r--r-- | WebCore/storage/AbstractDatabase.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/WebCore/storage/AbstractDatabase.h b/WebCore/storage/AbstractDatabase.h new file mode 100644 index 0000000..e302909 --- /dev/null +++ b/WebCore/storage/AbstractDatabase.h @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2010 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: + * + * 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. + * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 AbstractDatabase_h +#define AbstractDatabase_h + +#if ENABLE(DATABASE) + +#include "ExceptionCode.h" +#include "PlatformString.h" +#include "SQLiteDatabase.h" +#include <wtf/Forward.h> +#include <wtf/ThreadSafeShared.h> +#ifndef NDEBUG +#include "SecurityOrigin.h" +#endif + +namespace WebCore { + +class DatabaseAuthorizer; +class ScriptExecutionContext; +class SecurityOrigin; + +class AbstractDatabase : public ThreadSafeShared<AbstractDatabase> { +public: + static bool isAvailable(); + static void setIsAvailable(bool available); + + virtual ~AbstractDatabase(); + + virtual String version() const; + + bool opened() const { return m_opened; } + bool isNew() const { return m_new; } + + virtual ScriptExecutionContext* scriptExecutionContext() const; + virtual SecurityOrigin* securityOrigin() const; + virtual String stringIdentifier() const; + virtual String displayName() const; + virtual unsigned long estimatedSize() const; + virtual String fileName() const; + SQLiteDatabase& sqliteDatabase() { return m_sqliteDatabase; } + + unsigned long long maximumSize() const; + void incrementalVacuumIfNeeded(); + + // FIXME: move all version-related methods to a DatabaseVersionTracker class + bool versionMatchesExpected() const; + void setExpectedVersion(const String& version); + bool getVersionFromDatabase(String& version); + bool setVersionInDatabase(const String& version); + + void disableAuthorizer(); + void enableAuthorizer(); + void setAuthorizerReadOnly(); + bool lastActionChangedDatabase(); + bool lastActionWasInsert(); + void resetDeletes(); + bool hadDeletes(); + void resetAuthorizer(); + + virtual void markAsDeletedAndClose() = 0; + virtual void closeImmediately() = 0; + +protected: + AbstractDatabase(ScriptExecutionContext*, const String& name, const String& expectedVersion, + const String& displayName, unsigned long estimatedSize); + + void closeDatabase(); + + virtual bool performOpenAndVerify(bool shouldSetVersionInNewDatabase, ExceptionCode& ec); + + static const String& databaseInfoTableName(); + + RefPtr<ScriptExecutionContext> m_scriptExecutionContext; + RefPtr<SecurityOrigin> m_contextThreadSecurityOrigin; + + String m_name; + String m_expectedVersion; + String m_displayName; + unsigned long m_estimatedSize; + String m_filename; + +#ifndef NDEBUG + String databaseDebugName() const { return m_contextThreadSecurityOrigin->toString() + "::" + m_name; } +#endif + +private: + static const String& databaseVersionKey(); + + int m_guid; + bool m_opened; + bool m_new; + + SQLiteDatabase m_sqliteDatabase; + + RefPtr<DatabaseAuthorizer> m_databaseAuthorizer; +}; + +} // namespace WebCore + +#endif // ENABLE(DATABASE) + +#endif // AbstractDatabase_h |