2 * Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
3 * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include "bindings/core/v8/SerializedScriptValue.h"
31 #include "platform/geometry/FloatPoint.h"
32 #include "platform/geometry/IntPoint.h"
33 #include "platform/weborigin/Referrer.h"
34 #include "wtf/RefCounted.h"
35 #include "wtf/text/WTFString.h"
45 class ResourceRequest;
47 typedef Vector<RefPtr<HistoryItem> > HistoryItemVector;
49 class HistoryItem : public RefCounted<HistoryItem> {
51 static PassRefPtr<HistoryItem> create() { return adoptRef(new HistoryItem); }
54 // Used when the frame this item represents was navigated to a different
55 // url but a new item wasn't created.
56 void generateNewItemSequenceNumber();
57 void generateNewDocumentSequenceNumber();
59 const String& urlString() const;
62 const Referrer& referrer() const;
63 const String& target() const;
66 const AtomicString& formContentType() const;
68 const FloatPoint& pinchViewportScrollPoint() const;
69 void setPinchViewportScrollPoint(const FloatPoint&);
70 const IntPoint& scrollPoint() const;
71 void setScrollPoint(const IntPoint&);
72 void clearScrollPoint();
74 float pageScaleFactor() const;
75 void setPageScaleFactor(float);
77 Vector<String> getReferencedFilePaths();
78 const Vector<String>& documentState();
79 void setDocumentState(const Vector<String>&);
80 void setDocumentState(DocumentState*);
81 void clearDocumentState();
83 void setURL(const KURL&);
84 void setURLString(const String&);
85 void setReferrer(const Referrer&);
86 void setTarget(const String&);
88 void setStateObject(PassRefPtr<SerializedScriptValue>);
89 SerializedScriptValue* stateObject() const { return m_stateObject.get(); }
91 void setItemSequenceNumber(long long number) { m_itemSequenceNumber = number; }
92 long long itemSequenceNumber() const { return m_itemSequenceNumber; }
94 void setDocumentSequenceNumber(long long number) { m_documentSequenceNumber = number; }
95 long long documentSequenceNumber() const { return m_documentSequenceNumber; }
97 void setFrameSequenceNumber(long long number) { m_frameSequenceNumber = number; }
98 long long frameSequenceNumber() const { return m_frameSequenceNumber; }
100 void setFormInfoFromRequest(const ResourceRequest&);
101 void setFormData(PassRefPtr<FormData>);
102 void setFormContentType(const AtomicString&);
104 bool isCurrentDocument(Document*) const;
113 FloatPoint m_pinchViewportScrollPoint;
114 IntPoint m_scrollPoint;
115 float m_pageScaleFactor;
116 Vector<String> m_documentStateVector;
117 RefPtrWillBePersistent<DocumentState> m_documentState;
119 // If two HistoryItems have the same item sequence number, then they are
120 // clones of one another. Traversing history from one such HistoryItem to
121 // another is a no-op. HistoryItem clones are created for parent and
122 // sibling frames when only a subframe navigates.
123 int64_t m_itemSequenceNumber;
125 // If two HistoryItems have the same document sequence number, then they
126 // refer to the same instance of a document. Traversing history from one
127 // such HistoryItem to another preserves the document.
128 int64_t m_documentSequenceNumber;
130 // If two HistoryItems have the same frame sequence number, then they
131 // refer to the same instance of a Frame. This is used to determine whether
132 // whether a HistoryItem should navigate an existing frame or create a new
133 // one during a history navigation.
134 int64_t m_frameSequenceNumber;
136 // Support for HTML5 History
137 RefPtr<SerializedScriptValue> m_stateObject;
139 // info used to repost form data
140 RefPtr<FormData> m_formData;
141 AtomicString m_formContentType;
143 }; // class HistoryItem
147 #endif // HISTORYITEM_H