// This may show the warning dialog if all categories are disabled
resetCategoryIteration();
for (Iterator it= StructuredContentAssistProcessor.this.getProposalCategories().iterator(); it.hasNext();) {
CompletionProposalCategory cat= (CompletionProposalCategory) it.next();
cat.sessionStarted();
}
fRepetition= 0;
if (event.assistant instanceof IContentAssistantExtension2) {
IContentAssistantExtension2 extension= (IContentAssistantExtension2) event.assistant;