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 "CachedXSLStyleSheet.h"
29
30#include "CachedResourceClientWalker.h"
31#include "CachedStyleSheetClient.h"
32#include "ResourceBuffer.h"
33#include "TextResourceDecoder.h"
34#include <wtf/Vector.h>
35
36namespace WebCore {
37
38#if ENABLE(XSLT)
39
40CachedXSLStyleSheet::CachedXSLStyleSheet(const ResourceRequest& resourceRequest, SessionID sessionID)
41    : CachedResource(resourceRequest, XSLStyleSheet, sessionID)
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
49void CachedXSLStyleSheet::didAddClient(CachedResourceClient* c)
50{
51    ASSERT(c->resourceClientType() == CachedStyleSheetClient::expectedType());
52    if (!isLoading())
53        static_cast<CachedStyleSheetClient*>(c)->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
54}
55
56void CachedXSLStyleSheet::setEncoding(const String& chs)
57{
58    m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
59}
60
61String CachedXSLStyleSheet::encoding() const
62{
63    return m_decoder->encoding().name();
64}
65
66void CachedXSLStyleSheet::finishLoading(ResourceBuffer* data)
67{
68    m_data = data;
69    setEncodedSize(m_data.get() ? m_data->size() : 0);
70    if (m_data.get())
71        m_sheet = m_decoder->decodeAndFlush(m_data->data(), encodedSize());
72    setLoading(false);
73    checkNotify();
74}
75
76void CachedXSLStyleSheet::checkNotify()
77{
78    if (isLoading())
79        return;
80
81    CachedResourceClientWalker<CachedStyleSheetClient> w(m_clients);
82    while (CachedStyleSheetClient* c = w.next())
83        c->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
84}
85
86#endif
87
88}
89