/**
* @see
* org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
toSelect = new ArrayList<EObject>();
IEditorPart editor = RequirementUtils.getCurrentEditor();
IEditorServices services = SupportingEditorsManager.getInstance().getServices(editor);
CurrentPage page = RequirementHelper.INSTANCE.getCurrentPage();
if (services != null
&& ((EvaluationContext) event.getApplicationContext()).getDefaultVariable()
instanceof List<?>) {
EditingDomain editingDomain = services.getEditingDomain(editor);
// Get the current selection
List<?> elements =
((List<?>) ((EvaluationContext) event.getApplicationContext()).getDefaultVariable());
CompoundCommand compoundCmd =
new CompoundCommand(Messages.getString("AddAttributeHandler.1")); // $NON-NLS-1$
for (Object currObject : elements) {
EObject parent = null;
if (currObject instanceof Attribute) {
parent = ((Attribute) currObject).eContainer();
int newIndex = calculateIndex(parent, (EObject) currObject);
Attribute toDuplicate = null;
if (currObject instanceof AttributeLink) {
toDuplicate =
RequirementHelper.INSTANCE.duplicateAttributeLink((AttributeLink) currObject);
} else if (currObject instanceof ObjectAttribute) {
toDuplicate =
RequirementHelper.INSTANCE.duplicateObjectAttribute((ObjectAttribute) currObject);
}
if (parent != null && toDuplicate != null) {
toSelect.add(toDuplicate);
compoundCmd.appendIfCanExecute(
AddCommand.create(
editingDomain,
parent,
RequirementPackage.eINSTANCE.getRequirement_Attribute(),
toDuplicate,
newIndex));
}
}
}
if (!compoundCmd.isEmpty() && compoundCmd.canExecute()) {
editingDomain.getCommandStack().execute(compoundCmd);
page.setSelection(new StructuredSelection(toSelect));
}
}
return null;
}
/** Refreshes the current page viewer */
private void refreshViewer() {
CurrentPage page = RequirementHelper.INSTANCE.getCurrentPage();
page.setSelection(new StructuredSelection(toCopy));
}
/**
* Initializes the target Hierarchical Element. This method is executed only one time per Command.
*/
private void initializeTarget() {
targetElt = RequirementUtils.getHierarchicalElementFor(target);
if (targetElt == null) {
targetElt = RequirementHelper.INSTANCE.getHierarchicalElement(target, this);
}
}