/**
* Returns the list of the allowed child types as they are coming from {@link StructureIndicator}
* structure
*
* @return the list of the allowed child types
*/
private List<OverlayWidget> getAllowedChildTypes(OverlayWidget overlayWidget) {
List<OverlayWidget> allowedChildren = new ArrayList<OverlayWidget>();
List<StructureIndicator> stack = new ArrayList<StructureIndicator>();
stack.add(overlayWidget.getStructureIndicator());
while (!stack.isEmpty()) {
StructureIndicator structureIndicator = stack.remove(0);
if (structureIndicator instanceof StructureIndicator.Element) {
StructureIndicator.Element elemIndicator = (StructureIndicator.Element) structureIndicator;
OverlayWidget candidate = elemIndicator.asWidget();
allowedChildren.add(candidate);
} else {
if (structureIndicator.getIndicators() != null) {
stack.addAll(structureIndicator.getIndicators());
}
}
}
return allowedChildren;
}
