third_party/WebKit/Source/core/fetch/XSLStyleSheetResource.cpp

   1 /*
   2     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
   3     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
   4     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
   5     Copyright (C) 2006 Samuel Weinig (sam.weinig@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 "core/fetch/XSLStyleSheetResource.h"
  29
  30 #include "core/fetch/FetchRequest.h"
  31 #include "core/fetch/ResourceClientWalker.h"
  32 #include "core/fetch/ResourceFetcher.h"
  33 #include "core/fetch/StyleSheetResourceClient.h"
  34 #include "platform/RuntimeEnabledFeatures.h"
  35 #include "platform/SharedBuffer.h"
  36
  37 namespace blink {
  38
  39 ResourcePtr<XSLStyleSheetResource> XSLStyleSheetResource::fetch(FetchRequest& request, ResourceFetcher* fetcher)
  40 {
  41     ASSERT(RuntimeEnabledFeatures::xsltEnabled());
  42     request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextXSLT);
  43     return toXSLStyleSheetResource(fetcher->requestResource(request, XSLStyleSheetResourceFactory()));
  44 }
  45
  46 XSLStyleSheetResource::XSLStyleSheetResource(const ResourceRequest& resourceRequest, const String& charset)
  47     : StyleSheetResource(resourceRequest, XSLStyleSheet, "text/xsl", charset)
  48 {
  49     ASSERT(RuntimeEnabledFeatures::xsltEnabled());
  50     DEFINE_STATIC_LOCAL(const AtomicString, acceptXSLT, ("text/xml, application/xml, application/xhtml+xml, text/xsl, application/rss+xml, application/atom+xml", AtomicString::ConstructFromLiteral));
  51
  52     // It's XML we want.
  53     // FIXME: This should accept more general xml formats */*+xml, image/svg+xml for example.
  54     setAccept(acceptXSLT);
  55 }
  56
  57 void XSLStyleSheetResource::didAddClient(ResourceClient* c)
  58 {
  59     ASSERT(c->resourceClientType() == StyleSheetResourceClient::expectedType());
  60     Resource::didAddClient(c);
  61     if (!isLoading())
  62         static_cast<StyleSheetResourceClient*>(c)->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
  63 }
  64
  65 void XSLStyleSheetResource::checkNotify()
  66 {
  67     if (m_data.get())
  68         m_sheet = decodedText();
  69
  70     ResourceClientWalker<StyleSheetResourceClient> w(m_clients);
  71     while (StyleSheetResourceClient* c = w.next())
  72         c->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
  73 }
  74
  75 } // namespace blink