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      1 /*
      2  * Copyright (C) 2010, 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 INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "WebBackForwardListItem.h"
     28 
     29 #include "DataReference.h"
     30 #include "WebCoreArgumentCoders.h"
     31 
     32 namespace WebKit {
     33 
     34 static uint64_t highestUsedItemID = 0;
     35 
     36 WebBackForwardListItem::WebBackForwardListItem(const String& originalURL, const String& url, const String& title, const uint8_t* backForwardData, size_t backForwardDataSize, uint64_t itemID)
     37     : m_originalURL(originalURL)
     38     , m_url(url)
     39     , m_title(title)
     40     , m_itemID(itemID)
     41 {
     42     if (m_itemID > highestUsedItemID)
     43         highestUsedItemID = m_itemID;
     44 
     45     setBackForwardData(backForwardData, backForwardDataSize);
     46 }
     47 
     48 WebBackForwardListItem::~WebBackForwardListItem()
     49 {
     50 }
     51 
     52 uint64_t WebBackForwardListItem::highedUsedItemID()
     53 {
     54     return highestUsedItemID;
     55 }
     56 
     57 void WebBackForwardListItem::setBackForwardData(const uint8_t* data, size_t size)
     58 {
     59     m_backForwardData.reserveCapacity(size);
     60     m_backForwardData.append(data, size);
     61 }
     62 
     63 void WebBackForwardListItem::encode(CoreIPC::ArgumentEncoder& encoder) const
     64 {
     65     encoder.encode(m_originalURL);
     66     encoder.encode(m_url);
     67     encoder.encode(m_title);
     68     encoder.encode(m_itemID);
     69     encoder.encode(CoreIPC::DataReference(m_backForwardData.data(), m_backForwardData.size()));
     70 }
     71 
     72 PassRefPtr<WebBackForwardListItem> WebBackForwardListItem::decode(CoreIPC::ArgumentDecoder& decoder)
     73 {
     74     String originalURL;
     75     if (!decoder.decode(originalURL))
     76         return 0;
     77 
     78     String url;
     79     if (!decoder.decode(url))
     80         return 0;
     81 
     82     String title;
     83     if (!decoder.decode(title))
     84         return 0;
     85 
     86     uint64_t itemID;
     87     if (!decoder.decode(itemID))
     88         return 0;
     89 
     90     CoreIPC::DataReference data;
     91     if (!decoder.decode(data))
     92         return 0;
     93 
     94     return create(originalURL, url, title, data.data(), data.size(), itemID);
     95 }
     96 
     97 } // namespace WebKit
     98