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/*
* Copyright (C) 2010 Google, Inc. All Rights Reserved.
*
* 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 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 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 "core/dom/DecodedDataDocumentParser.h"
#include "core/dom/Document.h"
#include "core/dom/DocumentEncodingData.h"
#include "core/html/parser/TextResourceDecoder.h"
#include <memory>
namespace blink {
DecodedDataDocumentParser::DecodedDataDocumentParser(Document& document)
: DocumentParser(&document), m_needsDecoder(true) {}
DecodedDataDocumentParser::~DecodedDataDocumentParser() {}
void DecodedDataDocumentParser::setDecoder(
std::unique_ptr<TextResourceDecoder> decoder) {
// If the decoder is explicitly unset rather than having ownership
// transferred away by takeDecoder(), we need to make sure it's recreated
// next time data is appended.
m_needsDecoder = !decoder;
m_decoder = std::move(decoder);
}
TextResourceDecoder* DecodedDataDocumentParser::decoder() {
return m_decoder.get();
}
std::unique_ptr<TextResourceDecoder> DecodedDataDocumentParser::takeDecoder() {
return std::move(m_decoder);
}
void DecodedDataDocumentParser::appendBytes(const char* data, size_t length) {
if (!length)
return;
// This should be checking isStopped(), but XMLDocumentParser prematurely
// stops parsing when handling an XSLT processing instruction and still
// needs to receive decoded bytes.
if (isDetached())
return;
String decoded = m_decoder->decode(data, length);
updateDocument(decoded);
}
void DecodedDataDocumentParser::flush() {
// This should be checking isStopped(), but XMLDocumentParser prematurely
// stops parsing when handling an XSLT processing instruction and still
// needs to receive decoded bytes.
if (isDetached())
return;
// null decoder indicates there is no data received.
// We have nothing to do in that case.
if (!m_decoder)
return;
String remainingData = m_decoder->flush();
updateDocument(remainingData);
}
void DecodedDataDocumentParser::updateDocument(String& decodedData) {
document()->setEncodingData(DocumentEncodingData(*m_decoder.get()));
if (!decodedData.isEmpty())
append(decodedData);
}
} // namespace blink
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