if (model instanceof UiDocumentNode) {
return new UiDocumentTreeEditPart((UiDocumentNode) model);
} else if (model instanceof UiElementNode) {
UiElementNode node = (UiElementNode) model;
if (node.getDescriptor().hasChildren()) {
return new UiLayoutTreeEditPart(node);
} else {
return new UiViewTreeEditPart(node);
}
}
return null;
