/* | |
* Copyright (C) 2006 Lars Knoll <lars@trolltech.com> | |
* Copyright (C) 2008 Holger Hans Peter Freyther | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "TextCodecQt.h" | |
#include "PlatformString.h" | |
#include "CString.h" | |
#include <qset.h> | |
// #include <QDebug> | |
namespace WebCore { | |
static QSet<QByteArray> *unique_names = 0; | |
static const char *getAtomicName(const QByteArray &name) | |
{ | |
if (!unique_names) | |
unique_names = new QSet<QByteArray>; | |
unique_names->insert(name); | |
return unique_names->find(name)->constData(); | |
} | |
void TextCodecQt::registerEncodingNames(EncodingNameRegistrar registrar) | |
{ | |
QList<int> mibs = QTextCodec::availableMibs(); | |
// qDebug() << ">>>>>>>>> registerEncodingNames"; | |
for (int i = 0; i < mibs.size(); ++i) { | |
QTextCodec *c = QTextCodec::codecForMib(mibs.at(i)); | |
const char *name = getAtomicName(c->name()); | |
registrar(name, name); | |
// qDebug() << " " << name << name; | |
QList<QByteArray> aliases = c->aliases(); | |
for (int i = 0; i < aliases.size(); ++i) { | |
const char *a = getAtomicName(aliases.at(i)); | |
// qDebug() << " (a) " << a << name; | |
registrar(a, name); | |
} | |
} | |
} | |
static PassOwnPtr<TextCodec> newTextCodecQt(const TextEncoding& encoding, const void*) | |
{ | |
return new TextCodecQt(encoding); | |
} | |
void TextCodecQt::registerCodecs(TextCodecRegistrar registrar) | |
{ | |
QList<int> mibs = QTextCodec::availableMibs(); | |
// qDebug() << ">>>>>>>>> registerCodecs"; | |
for (int i = 0; i < mibs.size(); ++i) { | |
QTextCodec *c = QTextCodec::codecForMib(mibs.at(i)); | |
const char *name = getAtomicName(c->name()); | |
// qDebug() << " " << name; | |
registrar(name, newTextCodecQt, 0); | |
} | |
} | |
TextCodecQt::TextCodecQt(const TextEncoding& encoding) | |
: m_encoding(encoding) | |
{ | |
m_codec = QTextCodec::codecForName(m_encoding.name()); | |
} | |
TextCodecQt::~TextCodecQt() | |
{ | |
} | |
String TextCodecQt::decode(const char* bytes, size_t length, bool flush, bool /*stopOnError*/, bool& sawError) | |
{ | |
// We chop input buffer to smaller buffers to avoid excessive memory consumption | |
// when the input buffer is big. This helps reduce peak memory consumption in | |
// mobile devices where system RAM is limited. | |
#if OS(SYMBIAN) | |
static const int MaxInputChunkSize = 32 * 1024; | |
#else | |
static const int MaxInputChunkSize = 1024 * 1024; | |
#endif | |
const char* buf = bytes; | |
const char* end = buf + length; | |
String unicode(""); // a non-null string is expected | |
while (buf < end) { | |
int size = end - buf; | |
size = qMin(size, MaxInputChunkSize); | |
QString decoded = m_codec->toUnicode(buf, size, &m_state); | |
unicode.append(decoded); | |
buf += size; | |
} | |
sawError = m_state.invalidChars != 0; | |
if (flush) { | |
m_state.flags = QTextCodec::DefaultConversion; | |
m_state.remainingChars = 0; | |
m_state.invalidChars = 0; | |
} | |
return unicode; | |
} | |
CString TextCodecQt::encode(const UChar* characters, size_t length, UnencodableHandling) | |
{ | |
if (!length) | |
return ""; | |
// FIXME: do something sensible with UnencodableHandling | |
QByteArray ba = m_codec->fromUnicode(reinterpret_cast<const QChar*>(characters), length, 0); | |
return CString(ba.constData(), ba.length()); | |
} | |
} // namespace WebCore |