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