1/* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 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 13 * distribution. 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. 17 * 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. 29 */ 30 31#include "config.h" 32 33#include "modules/encoding/TextEncoder.h" 34 35#include "bindings/v8/Dictionary.h" 36#include "bindings/v8/ExceptionState.h" 37#include "wtf/text/CString.h" 38#include "wtf/text/TextEncodingRegistry.h" 39 40namespace WebCore { 41 42PassRefPtr<TextEncoder> TextEncoder::create(const String& utfLabel, ExceptionState& es) 43{ 44 const String& encodingLabel = utfLabel.isNull() ? String("utf-8") : utfLabel; 45 46 // FIXME: Types don't match Encoding spec, e.g. "ascii" => "US-ASCII" not "UTF-8". 47 48 WTF::TextEncoding encoding(encodingLabel); 49 if (!encoding.isValid()) { 50 es.throwTypeError(); 51 return 0; 52 } 53 54 String name(encoding.name()); 55 if (name != "UTF-8" && name != "UTF-16LE" && name != "UTF-16BE") { 56 es.throwTypeError(); 57 return 0; 58 } 59 60 return adoptRef(new TextEncoder(encoding.name())); 61} 62 63TextEncoder::TextEncoder(const String& encoding) 64 : m_encoding(encoding) 65 , m_codec(newTextCodec(m_encoding)) 66{ 67} 68 69TextEncoder::~TextEncoder() 70{ 71} 72 73String TextEncoder::encoding() const 74{ 75 return String(m_encoding.name()).lower(); 76} 77 78PassRefPtr<Uint8Array> TextEncoder::encode(const String& input, const Dictionary& options) 79{ 80 bool stream = false; 81 options.get("stream", stream); 82 83 // FIXME: Not flushing is not supported by TextCodec for encode; add it or 84 // handle split surrogates here. 85 86 CString result; 87 if (input.is8Bit()) 88 result = m_codec->encode(input.characters8(), input.length(), WTF::QuestionMarksForUnencodables); 89 else 90 result = m_codec->encode(input.characters16(), input.length(), WTF::QuestionMarksForUnencodables); 91 92 const char* buffer = result.data(); 93 const unsigned char* unsignedBuffer = reinterpret_cast<const unsigned char*>(buffer); 94 95 return Uint8Array::create(unsignedBuffer, result.length()); 96} 97 98} // namespace WebCore 99