@Nullable
private SimpleNode visit(SimpleNode simpleNode, DomElement domElement) {
boolean validCandidate = false;
if (simpleNode instanceof AbstractDomElementNode) {
final DomElement nodeElement = ((AbstractDomElementNode) simpleNode).getDomElement();
if (nodeElement != null) {
validCandidate = !(simpleNode instanceof DomElementsGroupNode);
if (validCandidate && nodeElement.equals(domElement)) {
return simpleNode;
}
if (!(nodeElement instanceof MergedObject) && !isParent(nodeElement, domElement)) {
return null;
}
}
}
final Object[] childElements = myBuilder.getTreeStructure().getChildElements(simpleNode);
if (childElements.length == 0 && validCandidate) { // leaf
return simpleNode;
}
for (Object child : childElements) {
SimpleNode result = visit((SimpleNode) child, domElement);
if (result != null) {
return result;
}
}
return validCandidate ? simpleNode : null;
}
private static boolean isParent(final DomElement potentialParent, final DomElement domElement) {
DomElement currParent = domElement;
while (currParent != null) {
if (currParent.equals(potentialParent)) return true;
currParent = currParent.getParent();
}
return false;
}
@Override
@Nullable
public Object getData(String dataId) {
if (DATA_KEY.is(dataId)) {
return this;
}
final SimpleNode simpleNode = getTree().getSelectedNode();
if (simpleNode instanceof AbstractDomElementNode) {
final DomElement domElement = ((AbstractDomElementNode) simpleNode).getDomElement();
if (domElement != null && domElement.isValid()) {
if (CommonDataKeys.NAVIGATABLE.is(dataId)) {
final XmlElement tag = domElement.getXmlElement();
if (tag instanceof Navigatable) {
return tag;
}
}
}
}
return null;
}
public DomModelTreeView(@NotNull DomElement rootElement) {
this(rootElement, rootElement.getManager(), new DomModelTreeStructure(rootElement));
}
protected boolean isRightFile(final VirtualFile file) {
return myRootElement == null
|| (myRootElement.isValid()
&& file.equals(DomUtil.getFile(myRootElement).getVirtualFile()));
}