/** @param context */
public void updateVisibility(IEclipseContext context) {
ExpressionContext exprContext = new ExpressionContext(context);
updateIsVisible(exprContext);
HashSet<ToolBarContributionRecord> recentlyUpdated = new HashSet<ToolBarContributionRecord>();
recentlyUpdated.add(this);
for (MToolBarElement item : generatedElements) {
boolean currentVisibility = computeVisibility(recentlyUpdated, item, exprContext);
if (item.isVisible() != currentVisibility) {
item.setVisible(currentVisibility);
}
}
}
public boolean mergeIntoModel() {
int idx = getIndex(toolbarModel, toolbarContribution.getPositionInParent());
if (idx == -1) {
return false;
}
final List<MToolBarElement> copyElements = new ArrayList<MToolBarElement>();
for (MToolBarElement item : toolbarContribution.getChildren()) {
MToolBarElement copy = (MToolBarElement) EcoreUtil.copy((EObject) item);
copyElements.add(copy);
}
for (MToolBarElement copy : copyElements) {
// if a visibleWhen clause is defined, the item should not be
// visible until the clause has been evaluated and returned 'true'
copy.setVisible(!anyVisibleWhen());
generatedElements.add(copy);
toolbarModel.getChildren().add(idx++, copy);
}
return true;
}