2 * Copyright (C) 2013 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include "modules/encoding/TextEncoder.h"
35 #include "bindings/v8/Dictionary.h"
36 #include "bindings/v8/ExceptionState.h"
37 #include "wtf/text/CString.h"
38 #include "wtf/text/TextEncodingRegistry.h"
42 DEFINE_GC_INFO(TextEncoder);
44 PassRefPtrWillBeRawPtr<TextEncoder> TextEncoder::create(const String& utfLabel, ExceptionState& exceptionState)
46 const String& encodingLabel = utfLabel.isNull() ? String("utf-8") : utfLabel;
48 WTF::TextEncoding encoding(encodingLabel);
49 if (!encoding.isValid()) {
50 exceptionState.throwTypeError("The encoding label provided ('" + encodingLabel + "') is invalid.");
54 String name(encoding.name());
55 if (name != "UTF-8" && name != "UTF-16LE" && name != "UTF-16BE") {
56 exceptionState.throwTypeError("The encoding provided ('" + encodingLabel + "') is not one of 'utf-8', 'utf-16', or 'utf-16be'.");
60 return adoptRefWillBeNoop(new TextEncoder(encoding.name()));
63 TextEncoder::TextEncoder(const String& encoding)
64 : m_encoding(encoding)
65 , m_codec(newTextCodec(m_encoding))
69 TextEncoder::~TextEncoder()
73 String TextEncoder::encoding() const
75 String name = String(m_encoding.name()).lower();
76 ASSERT(name == "utf-8" || name == "utf-16le" || name == "utf-16be");
80 PassRefPtr<Uint8Array> TextEncoder::encode(const String& input, const Dictionary& options)
83 options.get("stream", stream);
85 // FIXME: Not flushing is not supported by TextCodec for encode; add it or
86 // handle split surrogates here.
90 result = m_codec->encode(input.characters8(), input.length(), WTF::QuestionMarksForUnencodables);
92 result = m_codec->encode(input.characters16(), input.length(), WTF::QuestionMarksForUnencodables);
94 const char* buffer = result.data();
95 const unsigned char* unsignedBuffer = reinterpret_cast<const unsigned char*>(buffer);
97 return Uint8Array::create(unsignedBuffer, result.length());
100 } // namespace WebCore