@Override
public ICompletionProposal[] computeQuickAssistProposals(
IQuickAssistInvocationContext quickAssistContext) {
ISourceViewer viewer = quickAssistContext.getSourceViewer();
int documentOffset = quickAssistContext.getOffset();
IEditorPart part = fAssistant.getEditor();
CompilationUnit cu = DartUI.getWorkingCopyManager().getWorkingCopy(part.getEditorInput());
IAnnotationModel model = DartUI.getDocumentProvider().getAnnotationModel(part.getEditorInput());
AssistContext context = null;
if (cu != null) {
int length = viewer != null ? viewer.getSelectedRange().y : 0;
context = new AssistContext(cu, viewer, part, documentOffset, length);
}
Annotation[] annotations = fAssistant.getAnnotationsAtOffset();
fErrorMessage = null;
ICompletionProposal[] res = null;
if (model != null && context != null && annotations != null) {
List<IDartCompletionProposal> proposals = Lists.newArrayList();
IStatus status =
collectProposals(
context, model, annotations, true, !fAssistant.isUpdatedOffset(), proposals);
res = proposals.toArray(new ICompletionProposal[proposals.size()]);
if (!status.isOK()) {
fErrorMessage = status.getMessage();
DartToolsPlugin.log(status);
}
}
if (res == null || res.length == 0) {
return new ICompletionProposal[] {
new ChangeCorrectionProposal(
CorrectionMessages.NoCorrectionProposal_description, new NullChange(""), 0, null)
}; //$NON-NLS-1$
}
if (res.length > 1) {
Arrays.sort(res, new CompletionProposalComparator());
}
return res;
}
