// From /widget/HTMLConverter
//
// Takes HTML and converts it to plain text but in unicode.
//
NS_IMETHODIMP
nsScriptableUnescapeHTML::Unescape(const nsAString & aFromStr,
nsAString & aToStr)
{
// create the parser to do the conversion.
aToStr.SetLength(0);
nsresult rv;
nsCOMPtr<nsIParser> parser = do_CreateInstance(kCParserCID, &rv);
if (NS_FAILED(rv)) return rv;
// convert it!
nsCOMPtr<nsIContentSink> sink;
sink = do_CreateInstance(NS_PLAINTEXTSINK_CONTRACTID);
NS_ENSURE_TRUE(sink, NS_ERROR_FAILURE);
nsCOMPtr<nsIHTMLToTextSink> textSink(do_QueryInterface(sink));
NS_ENSURE_TRUE(textSink, NS_ERROR_FAILURE);
textSink->Initialize(&aToStr, nsIDocumentEncoder::OutputSelectionOnly
| nsIDocumentEncoder::OutputAbsoluteLinks, 0);
parser->SetContentSink(sink);
parser->Parse(aFromStr, 0, NS_LITERAL_CSTRING("text/html"),
PR_TRUE, eDTDMode_fragment);
return NS_OK;
}
//
// ConvertFromHTMLToUnicode
//
// Takes HTML and converts it to plain text but in unicode.
//
NS_IMETHODIMP
nsHTMLFormatConverter::ConvertFromHTMLToUnicode(const nsAutoString & aFromStr, nsAutoString & aToStr)
{
// create the parser to do the conversion.
aToStr.SetLength(0);
nsresult rv;
nsCOMPtr<nsIParser> parser = do_CreateInstance(kCParserCID, &rv);
if ( !parser )
return rv;
// convert it!
nsCOMPtr<nsIContentSink> sink;
sink = do_CreateInstance(NS_PLAINTEXTSINK_CONTRACTID);
NS_ENSURE_TRUE(sink, NS_ERROR_FAILURE);
nsCOMPtr<nsIHTMLToTextSink> textSink(do_QueryInterface(sink));
NS_ENSURE_TRUE(textSink, NS_ERROR_FAILURE);
// We set OutputNoScriptContent and OutputNoFramesContent unconditionally
// here because |aFromStr| is already filtered based on user preferences.
PRUint32 flags =
nsIDocumentEncoder::OutputSelectionOnly |
nsIDocumentEncoder::OutputAbsoluteLinks |
nsIDocumentEncoder::OutputNoScriptContent |
nsIDocumentEncoder::OutputNoFramesContent;
textSink->Initialize(&aToStr, flags, 0);
parser->SetContentSink(sink);
parser->Parse(aFromStr, 0, NS_LITERAL_CSTRING("text/html"), PR_TRUE, eDTDMode_fragment);
return NS_OK;
} // ConvertFromHTMLToUnicode
void
ConvertBufToPlainText(nsString &aConBuf, int aFlag)
{
nsCOMPtr<nsIParser> parser = do_CreateInstance(kCParserCID);
if (parser) {
nsCOMPtr<nsIContentSink> sink;
sink = do_CreateInstance(NS_PLAINTEXTSINK_CONTRACTID);
if (sink) {
nsCOMPtr<nsIHTMLToTextSink> textSink(do_QueryInterface(sink));
if (textSink) {
nsAutoString convertedText;
textSink->Initialize(&convertedText, aFlag, 72);
parser->SetContentSink(sink);
parser->Parse(aConBuf, 0, NS_LITERAL_CSTRING("text/html"), PR_TRUE);
aConBuf = convertedText;
}
}
}
}
