/**
* Update the encoding information in private member variables.
*
* @return true if the encoding information is updated.
*/
private boolean updateEncodingInfoPrivately() {
// Get the updated encoding setting.
String encoding = getEncoding();
// Do detection.
CharsetMatch[] detected_encodings = null;
int encoding_confidence = 0;
if (text_file_store != null) {
try {
detected_encodings =
EncodingUtil.detectCharsets(text_file_store.openInputStream(EFS.NONE, null));
encoding_confidence = EncodingUtil.getConfidence(detected_encodings, encoding);
// Check whether the text file can really be decoded by the encoding, and adjust the
// confidence.
boolean is_text_file_decodable =
EncodingUtil.isDecodable(text_file_store.openInputStream(EFS.NONE, null), encoding);
if (!is_text_file_decodable) {
// CharsetDetector may not read all the input data, so the confidence may not be zero even
// if the text cannot be decoded.
encoding_confidence = 0;
} else if (encoding_confidence == 0) {
// CharsetDetector does not support all encodings, so the confidence may be zero even if
// the text can be decoded.
encoding_confidence = 1;
}
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
this.detected_encodings = detected_encodings;
this.encoding_confidence = encoding_confidence;
// Just assume that the encoding information is updated.
return true;
}
/** Trims any white space and converts into Latin-1 from UTF-8. */
public static String clean(final String string) {
return string == null ? null : EncodingUtil.convertToKindleSafe(string).trim();
}
@Override
protected boolean isValueEditableForFile(final VirtualFile virtualFile) {
return virtualFile == null
|| virtualFile.isDirectory()
|| EncodingUtil.checkSomeActionEnabled(virtualFile) == null;
}
