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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 TextEncoder* TextEncoder::create(const String& utfLabel, ExceptionState& exceptionState)
44 const String& encodingLabel = utfLabel.isNull() ? String("utf-8") : utfLabel;
46 WTF::TextEncoding encoding(encodingLabel);
47 if (!encoding.isValid()) {
48 exceptionState.throwTypeError("The encoding label provided ('" + encodingLabel + "') is invalid.");
52 String name(encoding.name());
53 if (name != "UTF-8" && name != "UTF-16LE" && name != "UTF-16BE") {
54 exceptionState.throwTypeError("The encoding provided ('" + encodingLabel + "') is not one of 'utf-8', 'utf-16', or 'utf-16be'.");
58 return new TextEncoder(encoding);
61 TextEncoder::TextEncoder(const WTF::TextEncoding& encoding)
62 : m_encoding(encoding)
63 , m_codec(newTextCodec(encoding))
67 TextEncoder::~TextEncoder()
71 String TextEncoder::encoding() const
73 String name = String(m_encoding.name()).lower();
74 ASSERT(name == "utf-8" || name == "utf-16le" || name == "utf-16be");
78 PassRefPtr<Uint8Array> TextEncoder::encode(const String& input, const Dictionary& options)
81 options.get("stream", stream);
83 // FIXME: Not flushing is not supported by TextCodec for encode; add it or
84 // handle split surrogates here.
87 if (!input.isNull()) {
89 result = m_codec->encode(input.characters8(), input.length(), WTF::QuestionMarksForUnencodables);
91 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