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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 #include "CachedXSLStyleSheet.h"
     29 
     30 #include "CachedResourceClient.h"
     31 #include "CachedResourceClientWalker.h"
     32 #include "SharedBuffer.h"
     33 #include "TextResourceDecoder.h"
     34 #include <wtf/Vector.h>
     35 
     36 namespace WebCore {
     37 
     38 #if ENABLE(XSLT)
     39 
     40 CachedXSLStyleSheet::CachedXSLStyleSheet(const String &url)
     41     : CachedResource(url, XSLStyleSheet)
     42     , m_decoder(TextResourceDecoder::create("text/xsl"))
     43 {
     44     // It's XML we want.
     45     // FIXME: This should accept more general xml formats */*+xml, image/svg+xml for example.
     46     setAccept("text/xml, application/xml, application/xhtml+xml, text/xsl, application/rss+xml, application/atom+xml");
     47 }
     48 
     49 void CachedXSLStyleSheet::didAddClient(CachedResourceClient* c)
     50 {
     51     if (!isLoading())
     52         c->setXSLStyleSheet(m_url, m_response.url(), m_sheet);
     53 }
     54 
     55 void CachedXSLStyleSheet::setEncoding(const String& chs)
     56 {
     57     m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
     58 }
     59 
     60 String CachedXSLStyleSheet::encoding() const
     61 {
     62     return m_decoder->encoding().name();
     63 }
     64 
     65 void CachedXSLStyleSheet::data(PassRefPtr<SharedBuffer> data, bool allDataReceived)
     66 {
     67     if (!allDataReceived)
     68         return;
     69 
     70     m_data = data;
     71     setEncodedSize(m_data.get() ? m_data->size() : 0);
     72     if (m_data.get()) {
     73         m_sheet = String(m_decoder->decode(m_data->data(), encodedSize()));
     74         m_sheet += m_decoder->flush();
     75     }
     76     setLoading(false);
     77     checkNotify();
     78 }
     79 
     80 void CachedXSLStyleSheet::checkNotify()
     81 {
     82     if (isLoading())
     83         return;
     84 
     85     CachedResourceClientWalker w(m_clients);
     86     while (CachedResourceClient *c = w.next())
     87         c->setXSLStyleSheet(m_url, m_response.url(), m_sheet);
     88 }
     89 
     90 void CachedXSLStyleSheet::error(CachedResource::Status status)
     91 {
     92     setStatus(status);
     93     ASSERT(errorOccurred());
     94     setLoading(false);
     95     checkNotify();
     96 }
     97 
     98 #endif
     99 
    100 }
    101