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 "CachedResourceClient.h"
31#include "CachedResourceClientWalker.h"
32#include "SharedBuffer.h"
33#include "TextResourceDecoder.h"
34#include <wtf/Vector.h>
35
36namespace WebCore {
37
38#if ENABLE(XSLT)
39
40CachedXSLStyleSheet::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
49void CachedXSLStyleSheet::didAddClient(CachedResourceClient* c)
50{
51    if (!isLoading())
52        c->setXSLStyleSheet(m_url, m_response.url(), m_sheet);
53}
54
55void CachedXSLStyleSheet::setEncoding(const String& chs)
56{
57    m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
58}
59
60String CachedXSLStyleSheet::encoding() const
61{
62    return m_decoder->encoding().name();
63}
64
65void 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
80void 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
90void CachedXSLStyleSheet::error(CachedResource::Status status)
91{
92    setStatus(status);
93    ASSERT(errorOccurred());
94    setLoading(false);
95    checkNotify();
96}
97
98#endif
99
100}
101