public MenuKey(MMenuContribution mc) {
super(
mc.getParentId(),
mc.getPositionInParent(),
mc.getTags(),
(MCoreExpression) mc.getVisibleWhen(),
mc.getTransientData().get(FACTORY));
this.contribution = mc;
mc.setWidget(this);
}
public static boolean isVisible(MMenuContribution menuContribution, ExpressionContext eContext) {
if (menuContribution.getVisibleWhen() == null) {
return true;
}
return isVisible((MCoreExpression) menuContribution.getVisibleWhen(), eContext);
}
// this is similar in nature to:
// org.eclipse.e4.ui.internal.workbench.ContributionsAnalyzer.addMenuContributions(MMenu,
// ArrayList<MMenuContribution>, ArrayList<MMenuElement>)
// the difference is it needs to add all the contributions and manage their
// visiblility through a RAT
private void addMenuBarContributions(
final MMenu menuModel,
ArrayList<MMenuContribution> toContribute,
final IEclipseContext ctx,
final ExpressionContext eContext) {
HashSet<String> existingMenuIds = new HashSet<String>();
HashSet<String> existingSeparatorNames = new HashSet<String>();
for (MMenuElement child : menuModel.getChildren()) {
String elementId = child.getElementId();
if (child instanceof MMenu && elementId != null) {
existingMenuIds.add(elementId);
} else if (child instanceof MMenuSeparator && elementId != null) {
existingSeparatorNames.add(elementId);
}
}
boolean done = toContribute.size() == 0;
while (!done) {
ArrayList<MMenuContribution> curList = new ArrayList<MMenuContribution>(toContribute);
int retryCount = toContribute.size();
toContribute.clear();
for (final MMenuContribution menuContribution : curList) {
final ArrayList<MMenuElement> menuContributionsToRemove = new ArrayList<MMenuElement>();
if (!ContributionsAnalyzer.processAddition(
menuModel,
menuContributionsToRemove,
menuContribution,
existingMenuIds,
existingSeparatorNames)) {
toContribute.add(menuContribution);
} else {
if (menuContribution.getVisibleWhen() != null) {
ctx.runAndTrack(
new RunAndTrack() {
@Override
public boolean changed(IEclipseContext context) {
if (!menuModel.isToBeRendered()
|| !menuModel.isVisible()
|| menuModel.getWidget() == null) {
return false;
}
boolean rc = ContributionsAnalyzer.isVisible(menuContribution, eContext);
for (MMenuElement element : menuContributionsToRemove) {
element.setToBeRendered(rc);
}
return true;
}
});
}
ArrayList<ArrayList<MMenuElement>> lists = pendingCleanup.get(menuModel);
if (lists == null) {
lists = new ArrayList<ArrayList<MMenuElement>>();
pendingCleanup.put(menuModel, lists);
}
lists.add(menuContributionsToRemove);
}
}
// We're done if the retryList is now empty (everything done) or
// if the list hasn't changed at all (no hope)
done = (toContribute.size() == 0) || (toContribute.size() == retryCount);
}
}