/** @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) */
public boolean hasChildren(Object element) {
if (element == TreeRoot.EMPTY_ROOT || element == TreeTermination.SEARCH_CANCELED) {
return false;
}
// Only methods can have subelements, so there's no need to fool the
// user into believing that there is more
if (element instanceof MethodWrapper) {
MethodWrapper methodWrapper = (MethodWrapper) element;
if (methodWrapper.getMember().getElementType() != IRubyElement.METHOD) {
return false;
}
if (shouldStopTraversion(methodWrapper)) {
return false;
}
return true;
} else if (element instanceof TreeRoot) {
return true;
} else if (element instanceof DeferredMethodWrapper) {
// Err on the safe side by returning true even though
// we don't know for sure that there are children.
return true;
}
return false; // the "Update ..." placeholder has no children
}
private boolean shouldStopTraversion(MethodWrapper methodWrapper) {
return (methodWrapper.getLevel() > CallHierarchyUI.getDefault().getMaxCallDepth())
|| methodWrapper.isRecursive();
}
public void run(IProgressMonitor pm) {
fCalls = fMethodWrapper.getCalls(pm);
}