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      1 /*
      2     Copyright (C) 1998 Lars Knoll (knoll (at) mpi-hd.mpg.de)
      3     Copyright (C) 2001 Dirk Mueller (mueller (at) kde.org)
      4     Copyright (C) 2002 Waldo Bastian (bastian (at) kde.org)
      5     Copyright (C) 2006 Samuel Weinig (sam.weinig (at) gmail.com)
      6     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
      7 
      8     This library is free software; you can redistribute it and/or
      9     modify it under the terms of the GNU Library General Public
     10     License as published by the Free Software Foundation; either
     11     version 2 of the License, or (at your option) any later version.
     12 
     13     This library is distributed in the hope that it will be useful,
     14     but WITHOUT ANY WARRANTY; without even the implied warranty of
     15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     16     Library General Public License for more details.
     17 
     18     You should have received a copy of the GNU Library General Public License
     19     along with this library; see the file COPYING.LIB.  If not, write to
     20     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     21     Boston, MA 02110-1301, USA.
     22 
     23     This class provides all functionality needed for loading images, style sheets and html
     24     pages from the web. It has a memory cache for these objects.
     25 */
     26 
     27 #include "config.h"
     28 
     29 #if ENABLE(XBL)
     30 
     31 #include "CachedXBLDocument.h"
     32 
     33 #include "CachedResourceClientWalker.h"
     34 #include "TextResourceDecoder.h"
     35 #include <wtf/Vector.h>
     36 
     37 namespace WebCore {
     38 
     39 CachedXBLDocument::CachedXBLDocument(const String &url)
     40 : CachedResource(url, XBL), m_document(0)
     41 {
     42     // It's XML we want.
     43     setAccept("text/xml, application/xml, application/xhtml+xml, text/xsl, application/rss+xml, application/atom+xml");
     44 
     45     m_decoder = new TextResourceDecoder("application/xml");
     46 }
     47 
     48 CachedXBLDocument::~CachedXBLDocument()
     49 {
     50     if (m_document)
     51         m_document->deref();
     52 }
     53 
     54 void CachedXBLDocument::ref(CachedResourceClient *c)
     55 {
     56     CachedResource::ref(c);
     57     if (!m_loading)
     58         c->setXBLDocument(m_url, m_document);
     59 }
     60 
     61 void CachedXBLDocument::setEncoding(const String& chs)
     62 {
     63     m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
     64 }
     65 
     66 String CachedXBLDocument::encoding() const
     67 {
     68     return m_decoder->encoding().name();
     69 }
     70 
     71 void CachedXBLDocument::data(Vector<char>& data, bool )
     72 {
     73     if (!allDataReceived)
     74         return;
     75 
     76     ASSERT(!m_document);
     77 
     78     m_document = new XBL::XBLDocument();
     79     m_document->ref();
     80     m_document->open();
     81 
     82     m_document->write(m_decoder->decode(data.data(), data.size()));
     83     setSize(data.size());
     84 
     85     m_document->finishParsing();
     86     m_document->close();
     87     m_loading = false;
     88     checkNotify();
     89 }
     90 
     91 void CachedXBLDocument::checkNotify()
     92 {
     93     if (m_loading)
     94         return;
     95 
     96     CachedResourceClientWalker w(m_clients);
     97     while (CachedResourceClient *c = w.next())
     98         c->setXBLDocument(m_url, m_document);
     99 }
    100 
    101 void CachedXBLDocument::error()
    102 {
    103     m_loading = false;
    104     m_errorOccurred = true;
    105     checkNotify();
    106 }
    107 
    108 }
    109 
    110 #endif
    111