/**
* Get the ISchemaElement corresponding to this IDocumentElementNode
*
* @param node
* @param extensionPoint the extension point of the schema, if <code>null</code> it will be
* deduced
* @return the ISchemaElement for <code>node</code>
*/
public static ISchemaElement getSchemaElement(IDocumentElementNode node, String extensionPoint) {
if (extensionPoint == null) {
IMonitorObject obj = getTopLevelParent(node);
if (!(obj instanceof IMonitorExtension)) return null;
extensionPoint = ((IMonitorExtension) obj).getPoint();
}
ISchema schema = MDECore.getDefault().getSchemaRegistry().getSchema(extensionPoint);
if (schema == null) return null;
// Bug 213457 - look up elements based on the schema in which the parent is found
if (schema.getIncludes().length == 0 || "extension".equals(node.getXMLTagName())) // $NON-NLS-1$
return schema.findElement(node.getXMLTagName());
// if element is not "extension" & has multiple sub-schemas,
// Then search for the element in the same schema in which the parent element if found.
Stack stack = new Stack();
while (node != null) {
String tagName = node.getXMLTagName();
if ("extension".equals(tagName)) // $NON-NLS-1$
break;
stack.push(node.getXMLTagName());
node = node.getParentNode();
}
ISchemaElement element = null;
while (!stack.isEmpty()) {
element = schema.findElement((String) stack.pop());
if (element == null) return null;
schema = element.getSchema();
}
return element;
}
/**
* Scans up the node's parents till it reaches a IPluginExtension or IPluginExtensionPoint (or
* null) and returns the result.
*
* @param node
* @return the IPluginExtension or IPluginExtensionPoint that contains <code>node</code>
*/
public static IMonitorObject getTopLevelParent(IDocumentRange range) {
IDocumentElementNode node = null;
if (range instanceof IDocumentAttributeNode)
node = ((IDocumentAttributeNode) range).getEnclosingElement();
else if (range instanceof IDocumentTextNode)
node = ((IDocumentTextNode) range).getEnclosingElement();
else if (range instanceof IMonitorElement) node = (IDocumentElementNode) range;
else if (range instanceof IMonitorObject)
// not an attribute/text node/element -> return direct node
return (IMonitorObject) range;
while (node != null
&& !(node instanceof IMonitorExtension)
&& !(node instanceof IMonitorExtensionPoint)) node = node.getParentNode();
return node != null ? (IMonitorObject) node : null;
}