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/*
* generated by Xtext
*/
package org.eclipse.papyrus.uml.textedit.transition.xtext.ui.contentassist;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jface.text.contentassist.CompletionProposal;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.papyrus.uml.textedit.transition.xtext.scoping.UmlTransitionScopeProvider;
import org.eclipse.papyrus.uml.textedit.transition.xtext.umlTransition.CallOrSignalEventRule;
import org.eclipse.papyrus.uml.textedit.transition.xtext.umlTransition.EventRule;
import org.eclipse.papyrus.uml.textedit.transition.xtext.umlTransition.TransitionRule;
import org.eclipse.papyrus.uml.xtext.integration.core.ContextElementUtil;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Operation;
import org.eclipse.xtext.RuleCall;
import org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext;
import org.eclipse.xtext.ui.editor.contentassist.ICompletionProposalAcceptor;
/**
* see http://www.eclipse.org/Xtext/documentation/latest/xtext.html#contentAssist on how to customize content assistant
*/
public class UmlTransitionProposalProvider extends AbstractUmlTransitionProposalProvider {
@Override
public void complete_CallOrSignalEventRule(EObject model, RuleCall ruleCall, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
// TODO Auto-generated method stub
TransitionRule rule = (TransitionRule) model;
List<EObject> operationAndSignals = UmlTransitionScopeProvider.getVisibleOperationAndSignals(ContextElementUtil.getContextElement(model.eResource()));
List<EObject> alreadyUsedOperationAndSignals = new ArrayList<EObject>();
if (rule != null && rule.getTriggers() != null && !rule.getTriggers().isEmpty()) {
List<EventRule> eventRules = rule.getTriggers();
for (EventRule eventRule : eventRules) {
if (eventRule instanceof CallOrSignalEventRule) {
CallOrSignalEventRule callOrSignalEventRule = (CallOrSignalEventRule) eventRule;
if (callOrSignalEventRule.getOperationOrSignal() != null) {
alreadyUsedOperationAndSignals.add(callOrSignalEventRule.getOperationOrSignal());
}
}
}
}
operationAndSignals.removeAll(alreadyUsedOperationAndSignals);
for (EObject o : operationAndSignals) {
NamedElement opOrSignal = (NamedElement) o;
if (opOrSignal.getName().startsWith(context.getPrefix())) {
String completionString = opOrSignal.getName().substring(context.getPrefix().length());
ICompletionProposal completionProposal = new CompletionProposal(completionString, // String to be inserted
context.getOffset(), // Offset
context.getSelectedText().length(), // Replacement length
completionString.length(), // cursorPosition
null, // image
opOrSignal.getName() + " - " + (opOrSignal instanceof Operation ? "Operation" : "Signal"), // displayString
null, // contextInformation
(opOrSignal instanceof Operation ? "Operation associated with the CallEvent of this trigger" : "Signal associated with the SignalEvent of this trigger") // additionalProposalInfo
);
// acceptor.accept(new CompletionProposal(replacementString, replacementOffset, replacementLength, cursorPosition, image, displayString, contextInformation, additionalProposalInfo))
acceptor.accept(completionProposal);
}
}
}
}
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