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      1 /*
      2  * Copyright (C) 2005, 2006, 2008, 2011 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/loader/HistoryItem.h"
     28 
     29 #include "core/dom/Document.h"
     30 #include "core/html/forms/FormController.h"
     31 #include "platform/network/ResourceRequest.h"
     32 #include "wtf/CurrentTime.h"
     33 #include "wtf/text/CString.h"
     34 
     35 namespace blink {
     36 
     37 static long long generateSequenceNumber()
     38 {
     39     // Initialize to the current time to reduce the likelihood of generating
     40     // identifiers that overlap with those from past/future browser sessions.
     41     static long long next = static_cast<long long>(currentTime() * 1000000.0);
     42     return ++next;
     43 }
     44 
     45 HistoryItem::HistoryItem()
     46     : m_pageScaleFactor(0)
     47     , m_itemSequenceNumber(generateSequenceNumber())
     48     , m_documentSequenceNumber(generateSequenceNumber())
     49     , m_frameSequenceNumber(generateSequenceNumber())
     50 {
     51 }
     52 
     53 HistoryItem::~HistoryItem()
     54 {
     55 }
     56 
     57 void HistoryItem::generateNewItemSequenceNumber()
     58 {
     59     m_itemSequenceNumber = generateSequenceNumber();
     60 }
     61 
     62 void HistoryItem::generateNewDocumentSequenceNumber()
     63 {
     64     m_documentSequenceNumber = generateSequenceNumber();
     65 }
     66 
     67 const String& HistoryItem::urlString() const
     68 {
     69     return m_urlString;
     70 }
     71 
     72 KURL HistoryItem::url() const
     73 {
     74     return KURL(ParsedURLString, m_urlString);
     75 }
     76 
     77 const Referrer& HistoryItem::referrer() const
     78 {
     79     return m_referrer;
     80 }
     81 
     82 const String& HistoryItem::target() const
     83 {
     84     return m_target;
     85 }
     86 
     87 void HistoryItem::setURLString(const String& urlString)
     88 {
     89     if (m_urlString != urlString)
     90         m_urlString = urlString;
     91 }
     92 
     93 void HistoryItem::setURL(const KURL& url)
     94 {
     95     setURLString(url.string());
     96 }
     97 
     98 void HistoryItem::setReferrer(const Referrer& referrer)
     99 {
    100     m_referrer = referrer;
    101 }
    102 
    103 void HistoryItem::setTarget(const String& target)
    104 {
    105     m_target = target;
    106 }
    107 
    108 const FloatPoint& HistoryItem::pinchViewportScrollPoint() const
    109 {
    110     return m_pinchViewportScrollPoint;
    111 }
    112 
    113 void HistoryItem::setPinchViewportScrollPoint(const FloatPoint& point)
    114 {
    115     m_pinchViewportScrollPoint = point;
    116 }
    117 
    118 const IntPoint& HistoryItem::scrollPoint() const
    119 {
    120     return m_scrollPoint;
    121 }
    122 
    123 void HistoryItem::setScrollPoint(const IntPoint& point)
    124 {
    125     m_scrollPoint = point;
    126 }
    127 
    128 void HistoryItem::clearScrollPoint()
    129 {
    130     m_scrollPoint = IntPoint();
    131     m_pinchViewportScrollPoint = FloatPoint();
    132 }
    133 
    134 float HistoryItem::pageScaleFactor() const
    135 {
    136     return m_pageScaleFactor;
    137 }
    138 
    139 void HistoryItem::setPageScaleFactor(float scaleFactor)
    140 {
    141     m_pageScaleFactor = scaleFactor;
    142 }
    143 
    144 void HistoryItem::setDocumentState(const Vector<String>& state)
    145 {
    146     ASSERT(!m_documentState);
    147     m_documentStateVector = state;
    148 }
    149 
    150 void HistoryItem::setDocumentState(DocumentState* state)
    151 {
    152     m_documentState = state;
    153 }
    154 
    155 const Vector<String>& HistoryItem::documentState()
    156 {
    157     if (m_documentState)
    158         m_documentStateVector = m_documentState->toStateVector();
    159     return m_documentStateVector;
    160 }
    161 
    162 Vector<String> HistoryItem::getReferencedFilePaths()
    163 {
    164     return FormController::getReferencedFilePaths(documentState());
    165 }
    166 
    167 void HistoryItem::clearDocumentState()
    168 {
    169     m_documentState.clear();
    170     m_documentStateVector.clear();
    171 }
    172 
    173 void HistoryItem::setStateObject(PassRefPtr<SerializedScriptValue> object)
    174 {
    175     m_stateObject = object;
    176 }
    177 
    178 const AtomicString& HistoryItem::formContentType() const
    179 {
    180     return m_formContentType;
    181 }
    182 
    183 void HistoryItem::setFormInfoFromRequest(const ResourceRequest& request)
    184 {
    185     if (equalIgnoringCase(request.httpMethod(), "POST")) {
    186         // FIXME: Eventually we have to make this smart enough to handle the case where
    187         // we have a stream for the body to handle the "data interspersed with files" feature.
    188         m_formData = request.httpBody();
    189         m_formContentType = request.httpContentType();
    190     } else {
    191         m_formData = nullptr;
    192         m_formContentType = nullAtom;
    193     }
    194 }
    195 
    196 void HistoryItem::setFormData(PassRefPtr<FormData> formData)
    197 {
    198     m_formData = formData;
    199 }
    200 
    201 void HistoryItem::setFormContentType(const AtomicString& formContentType)
    202 {
    203     m_formContentType = formContentType;
    204 }
    205 
    206 FormData* HistoryItem::formData()
    207 {
    208     return m_formData.get();
    209 }
    210 
    211 bool HistoryItem::isCurrentDocument(Document* doc) const
    212 {
    213     // FIXME: We should find a better way to check if this is the current document.
    214     return equalIgnoringFragmentIdentifier(url(), doc->url());
    215 }
    216 
    217 } // namespace blink
    218 
    219