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/*
* 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:
* 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 GOOGLE 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 GOOGLE 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 StorageArea_h
#define StorageArea_h
#include "core/frame/LocalFrameLifecycleObserver.h"
#include "modules/ModulesExport.h"
#include "platform/heap/Handle.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/text/WTFString.h"
namespace blink {
class ExceptionState;
class LocalFrame;
class KURL;
class SecurityOrigin;
class Storage;
class WebStorageArea;
class WebStorageNamespace;
enum StorageType {
LocalStorage,
SessionStorage
};
class MODULES_EXPORT StorageArea final : public GarbageCollectedFinalized<StorageArea>, public LocalFrameLifecycleObserver {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(StorageArea);
public:
static StorageArea* create(PassOwnPtr<WebStorageArea>, StorageType);
virtual ~StorageArea();
// The HTML5 DOM Storage API
unsigned length(ExceptionState&, LocalFrame* sourceFrame);
String key(unsigned index, ExceptionState&, LocalFrame* sourceFrame);
String getItem(const String& key, ExceptionState&, LocalFrame* sourceFrame);
void setItem(const String& key, const String& value, ExceptionState&, LocalFrame* sourceFrame);
void removeItem(const String& key, ExceptionState&, LocalFrame* sourceFrame);
void clear(ExceptionState&, LocalFrame* sourceFrame);
bool contains(const String& key, ExceptionState&, LocalFrame* sourceFrame);
bool canAccessStorage(LocalFrame*);
size_t memoryBytesUsedByCache();
static void dispatchLocalStorageEvent(const String& key, const String& oldValue, const String& newValue,
SecurityOrigin*, const KURL& pageURL, WebStorageArea* sourceAreaInstance, bool originatedInProcess);
static void dispatchSessionStorageEvent(const String& key, const String& oldValue, const String& newValue,
SecurityOrigin*, const KURL& pageURL, const WebStorageNamespace&,
WebStorageArea* sourceAreaInstance, bool originatedInProcess);
DECLARE_TRACE();
private:
StorageArea(PassOwnPtr<WebStorageArea>, StorageType);
static bool isEventSource(Storage*, WebStorageArea* sourceAreaInstance);
OwnPtr<WebStorageArea> m_storageArea;
StorageType m_storageType;
bool m_canAccessStorageCachedResult;
};
} // namespace blink
#endif // StorageArea_h
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