/**
* Retrieves indent options for PSI file from an associated document or (if not defined in the
* document) from file indent options providers.
*
* @param file The PSI file to retrieve options for.
* @param formatRange The text range within the file for formatting purposes or null if there is
* either no specific range or multiple ranges. If the range covers the entire file (full
* reformat), options stored in the document are ignored and indent options are taken from
* file indent options providers.
* @param ignoreDocOptions Ignore options stored in the document and use file indent options
* providers even if there is no text range or the text range doesn't cover the entire file.
* @param providerProcessor A callback object containing a reference to indent option provider
* which has returned indent options.
* @return Indent options from the associated document or file indent options providers.
* @see com.intellij.psi.codeStyle.FileIndentOptionsProvider
*/
@NotNull
public IndentOptions getIndentOptionsByFile(
@Nullable PsiFile file,
@Nullable TextRange formatRange,
boolean ignoreDocOptions,
@Nullable Processor<FileIndentOptionsProvider> providerProcessor) {
if (file != null && file.isValid() && file.isWritable()) {
boolean isFullReformat = isFileFullyCoveredByRange(file, formatRange);
if (!ignoreDocOptions && !isFullReformat) {
IndentOptions docOptions = IndentOptions.retrieveFromAssociatedDocument(file);
if (docOptions != null) return docOptions;
}
FileIndentOptionsProvider[] providers =
Extensions.getExtensions(FileIndentOptionsProvider.EP_NAME);
for (FileIndentOptionsProvider provider : providers) {
if (!isFullReformat || provider.useOnFullReformat()) {
IndentOptions indentOptions = provider.getIndentOptions(this, file);
if (indentOptions != null) {
if (providerProcessor != null) {
providerProcessor.process(provider);
}
logIndentOptions(file, provider, indentOptions);
return indentOptions;
}
}
}
return getIndentOptions(file.getFileType());
} else return OTHER_INDENT_OPTIONS;
}
private static void logIndentOptions(
@NotNull PsiFile file,
@NotNull FileIndentOptionsProvider provider,
@NotNull IndentOptions options) {
LOG.debug(
"Indent options returned by "
+ provider.getClass().getName()
+ " for "
+ file.getName()
+ ": indent size="
+ options.INDENT_SIZE
+ ", use tabs="
+ options.USE_TAB_CHARACTER
+ ", tab size="
+ options.TAB_SIZE);
}