public void run() {
if (textViewer == null) {
textViewer = notesViewer.getImplementation().getTextViewer();
}
if (textViewer != null) {
if (textViewer.canDoOperation(op)) {
textViewer.doOperation(op);
}
}
}
/*
* @see ITextOperationTarget#doOperation(int)
*/
public void doOperation(int operation) {
if (getTextWidget() == null || (!redraws() && operation != FORMAT)) return;
switch (operation) {
case CONTENTASSIST_PROPOSALS:
fContentAssistant.showPossibleCompletions();
return;
case CONTENTASSIST_CONTEXT_INFORMATION:
fContentAssistant.showContextInformation();
return;
case QUICK_ASSIST:
// FIXME: must find a way to post to the status line
/* String msg= */ fQuickAssistAssistant.showPossibleQuickAssists();
// setStatusLineErrorMessage(msg);
return;
case INFORMATION:
fInformationPresenter.showInformation();
return;
case FORMAT:
{
final Point selection = rememberSelection();
final IRewriteTarget target = getRewriteTarget();
final IDocument document = getDocument();
IFormattingContext context = null;
DocumentRewriteSession rewriteSession = null;
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
DocumentRewriteSessionType type =
(selection.y == 0 && document.getLength() > 1000) || selection.y > 1000
? DocumentRewriteSessionType.SEQUENTIAL
: DocumentRewriteSessionType.UNRESTRICTED_SMALL;
rewriteSession = extension.startRewriteSession(type);
} else {
setRedraw(false);
target.beginCompoundChange();
}
try {
final String rememberedContents = document.get();
try {
if (fContentFormatter instanceof IContentFormatterExtension) {
final IContentFormatterExtension extension =
(IContentFormatterExtension) fContentFormatter;
context = createFormattingContext();
if (selection.y == 0) {
context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
} else {
context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
context.setProperty(
FormattingContextProperties.CONTEXT_REGION,
new Region(selection.x, selection.y));
}
extension.format(document, context);
} else {
IRegion r;
if (selection.y == 0) {
IRegion coverage = getModelCoverage();
r = coverage == null ? new Region(0, 0) : coverage;
} else {
r = new Region(selection.x, selection.y);
}
fContentFormatter.format(document, r);
}
updateSlaveDocuments(document);
} catch (RuntimeException x) {
// fire wall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
// if something went wrong we undo the changes we just did
// TODO to be removed after 3.0 M8
document.set(rememberedContents);
throw x;
}
} finally {
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 extension = (IDocumentExtension4) document;
extension.stopRewriteSession(rewriteSession);
} else {
target.endCompoundChange();
setRedraw(true);
}
restoreSelection();
if (context != null) context.dispose();
}
return;
}
default:
super.doOperation(operation);
}
}
