/**
* Provide the text selection that is needed to execute the command. Default implementation,
* extend to Erlang elements selected.
*
* @param document text {@link IDocument}
* @param selection selection affected by command (extended by extendSelection)
* @return new {@link ITextSelection} with all text up to selection
*/
protected ITextSelection getTextSelection(
final IDocument document, final ITextSelection selection) {
if (getTextEditor() instanceof ErlangEditor) {
final ErlangEditor erlangEditor = (ErlangEditor) getTextEditor();
final IErlModule module = erlangEditor.getModule();
if (module != null) {
final int offset1 = selection.getOffset(), offset2 = offset1 + selection.getLength();
try {
final IErlElement e1 = module.getElementAt(offset1);
final IErlElement e2 = module.getElementAt(offset2);
if (e1 instanceof ISourceReference) {
final ISourceReference ref1 = (ISourceReference) e1;
final ISourceRange r1 = ref1.getSourceRange();
if (e1 == e2) {
return extendSelectionToWholeLines(
document, new TextSelection(document, r1.getOffset(), r1.getLength()));
} else if (e2 == null) {
return extendSelectionToWholeLines(
document,
new TextSelection(
document,
r1.getOffset(),
selection.getLength() + selection.getOffset() - r1.getOffset()));
} else if (e2 instanceof ISourceReference) {
final ISourceReference ref2 = (ISourceReference) e2;
final ISourceRange r2 = ref2.getSourceRange();
return extendSelectionToWholeLines(
document,
new TextSelection(
document, r1.getOffset(), r2.getOffset() - r1.getOffset() + r2.getLength()));
}
}
} catch (final ErlModelException e) {
}
}
}
return extendSelectionToWholeLines(document, selection);
}
