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/*
* Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2012 Research In Motion Limited. 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 COMPUTER, 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 COMPUTER, 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 HistoryItem_h
#define HistoryItem_h
#include "bindings/core/v8/SerializedScriptValue.h"
#include "core/CoreExport.h"
#include "core/loader/FrameLoaderTypes.h"
#include "platform/geometry/FloatPoint.h"
#include "platform/geometry/IntPoint.h"
#include "platform/heap/Handle.h"
#include "platform/scroll/ScrollTypes.h"
#include "platform/weborigin/Referrer.h"
#include "wtf/text/WTFString.h"
namespace blink {
class Document;
class DocumentState;
class EncodedFormData;
class KURL;
class ResourceRequest;
class CORE_EXPORT HistoryItem final
: public GarbageCollectedFinalized<HistoryItem> {
public:
static HistoryItem* create() { return new HistoryItem; }
~HistoryItem();
const String& urlString() const;
KURL url() const;
const Referrer& referrer() const;
const String& target() const;
EncodedFormData* formData();
const AtomicString& formContentType() const;
const ScrollOffset& visualViewportScrollOffset() const;
void setVisualViewportScrollOffset(const ScrollOffset&);
const ScrollOffset& getScrollOffset() const;
void setScrollOffset(const ScrollOffset&);
float pageScaleFactor() const;
void setPageScaleFactor(float);
Vector<String> getReferencedFilePaths();
const Vector<String>& getDocumentState();
void setDocumentState(const Vector<String>&);
void setDocumentState(DocumentState*);
void clearDocumentState();
void setURL(const KURL&);
void setURLString(const String&);
void setReferrer(const Referrer&);
void setTarget(const String&);
void setStateObject(PassRefPtr<SerializedScriptValue>);
SerializedScriptValue* stateObject() const { return m_stateObject.get(); }
void setItemSequenceNumber(long long number) {
m_itemSequenceNumber = number;
}
long long itemSequenceNumber() const { return m_itemSequenceNumber; }
void setDocumentSequenceNumber(long long number) {
m_documentSequenceNumber = number;
}
long long documentSequenceNumber() const { return m_documentSequenceNumber; }
void setScrollRestorationType(HistoryScrollRestorationType type) {
m_scrollRestorationType = type;
}
HistoryScrollRestorationType scrollRestorationType() {
return m_scrollRestorationType;
}
void setFormInfoFromRequest(const ResourceRequest&);
void setFormData(PassRefPtr<EncodedFormData>);
void setFormContentType(const AtomicString&);
bool isCurrentDocument(Document*) const;
DECLARE_TRACE();
private:
HistoryItem();
String m_urlString;
Referrer m_referrer;
String m_target;
ScrollOffset m_visualViewportScrollOffset;
ScrollOffset m_scrollOffset;
float m_pageScaleFactor;
Vector<String> m_documentStateVector;
Member<DocumentState> m_documentState;
// If two HistoryItems have the same item sequence number, then they are
// clones of one another. Traversing history from one such HistoryItem to
// another is a no-op. HistoryItem clones are created for parent and
// sibling frames when only a subframe navigates.
int64_t m_itemSequenceNumber;
// If two HistoryItems have the same document sequence number, then they
// refer to the same instance of a document. Traversing history from one
// such HistoryItem to another preserves the document.
int64_t m_documentSequenceNumber;
// Type of the scroll restoration for the history item determines if scroll
// position should be restored when it is loaded during history traversal.
HistoryScrollRestorationType m_scrollRestorationType;
// Support for HTML5 History
RefPtr<SerializedScriptValue> m_stateObject;
// info used to repost form data
RefPtr<EncodedFormData> m_formData;
AtomicString m_formContentType;
}; // class HistoryItem
} // namespace blink
#endif // HISTORYITEM_H
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