LocalStorageDatabase.h [plain text]
#ifndef LocalStorageDatabase_h
#define LocalStorageDatabase_h
#include <WebCore/SQLiteDatabase.h>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/RefPtr.h>
#include <wtf/ThreadSafeRefCounted.h>
class WorkQueue;
namespace WebCore {
class SecurityOrigin;
class StorageMap;
class SuddenTerminationDisabler;
}
namespace WebKit {
class LocalStorageDatabaseTracker;
class LocalStorageDatabase : public ThreadSafeRefCounted<LocalStorageDatabase> {
public:
static PassRefPtr<LocalStorageDatabase> create(PassRefPtr<WorkQueue>, PassRefPtr<LocalStorageDatabaseTracker>, PassRefPtr<WebCore::SecurityOrigin>);
~LocalStorageDatabase();
void importItems(WebCore::StorageMap&);
void setItem(const String& key, const String& value);
void removeItem(const String& key);
void clear();
void close();
private:
LocalStorageDatabase(PassRefPtr<WorkQueue>, PassRefPtr<LocalStorageDatabaseTracker>, PassRefPtr<WebCore::SecurityOrigin>);
enum DatabaseOpeningStrategy {
CreateIfNonExistent,
SkipIfNonExistent
};
bool tryToOpenDatabase(DatabaseOpeningStrategy);
void openDatabase(DatabaseOpeningStrategy);
bool migrateItemTableIfNeeded();
void itemDidChange(const String& key, const String& value);
void scheduleDatabaseUpdate();
void updateDatabase();
void updateDatabaseWithChangedItems(const HashMap<String, String>&);
bool databaseIsEmpty();
RefPtr<WorkQueue> m_queue;
RefPtr<LocalStorageDatabaseTracker> m_tracker;
RefPtr<WebCore::SecurityOrigin> m_securityOrigin;
String m_databasePath;
WebCore::SQLiteDatabase m_database;
bool m_failedToOpenDatabase;
bool m_didImportItems;
bool m_isClosed;
bool m_didScheduleDatabaseUpdate;
bool m_shouldClearItems;
HashMap<String, String> m_changedItems;
std::unique_ptr<WebCore::SuddenTerminationDisabler> m_disableSuddenTerminationWhileWritingToLocalStorage;
};
}
#endif // LocalStorageDatabase_h