public String[] knownNamespaces() {
final PsiElement parentElement = getParent();
BidirectionalMap<String, String> map = initNamespaceMaps(parentElement);
Set<String> known = Collections.emptySet();
if (map != null) {
known = new HashSet<String>(map.values());
}
if (parentElement instanceof XmlTag) {
if (known.isEmpty()) return ((XmlTag) parentElement).knownNamespaces();
ContainerUtil.addAll(known, ((XmlTag) parentElement).knownNamespaces());
} else {
XmlExtension xmlExtension = XmlExtension.getExtensionByElement(this);
if (xmlExtension != null) {
final XmlFile xmlFile = xmlExtension.getContainingFile(this);
if (xmlFile != null) {
final XmlTag rootTag = xmlFile.getRootTag();
if (rootTag != null && rootTag != this) {
if (known.isEmpty()) return rootTag.knownNamespaces();
ContainerUtil.addAll(known, rootTag.knownNamespaces());
}
}
}
}
return ArrayUtil.toStringArray(known);
}
@Nullable
@NonNls
public String getSubTagText(@NonNls String qname) {
final XmlTag tag = findFirstSubTag(qname);
if (tag == null) return null;
return tag.getValue().getText();
}
public XmlNSDescriptor getNSDescriptor(final String namespace, boolean strict) {
final XmlTag parentTag = getParentTag();
if (parentTag == null && namespace.equals(XmlUtil.XHTML_URI)) {
final XmlNSDescriptor descriptor = getDtdDescriptor(XmlUtil.getContainingFile(this));
if (descriptor != null) {
return descriptor;
}
}
Map<String, CachedValue<XmlNSDescriptor>> map = initNSDescriptorsMap();
final CachedValue<XmlNSDescriptor> descriptor = map.get(namespace);
if (descriptor != null) {
final XmlNSDescriptor value = descriptor.getValue();
if (value != null) {
return value;
}
}
if (parentTag == null) {
final XmlDocument parentOfType = PsiTreeUtil.getParentOfType(this, XmlDocument.class);
if (parentOfType == null) {
return null;
}
return parentOfType.getDefaultNSDescriptor(namespace, strict);
}
return parentTag.getNSDescriptor(namespace, strict);
}
@NotNull
public XmlTag[] findSubTags(final String name, final String namespace) {
final XmlTag[] subTags = getSubTags();
final List<XmlTag> result = new ArrayList<XmlTag>();
for (final XmlTag subTag : subTags) {
if (namespace == null) {
if (name.equals(subTag.getName())) result.add(subTag);
} else if (name.equals(subTag.getLocalName()) && namespace.equals(subTag.getNamespace())) {
result.add(subTag);
}
}
return ContainerUtil.toArray(result, new XmlTag[result.size()]);
}
@Nullable
protected XmlElementDescriptor computeElementDescriptor() {
for (XmlElementDescriptorProvider provider :
Extensions.getExtensions(XmlElementDescriptorProvider.EP_NAME)) {
XmlElementDescriptor elementDescriptor = provider.getDescriptor(this);
if (elementDescriptor != null) {
return elementDescriptor;
}
}
final String namespace = getNamespace();
if (XmlUtil.EMPTY_URI.equals(namespace)) { // nonqualified items
final XmlTag parent = getParentTag();
if (parent != null) {
final XmlElementDescriptor descriptor = parent.getDescriptor();
if (descriptor != null) {
XmlElementDescriptor fromParent = descriptor.getElementDescriptor(this, parent);
if (fromParent != null && !(fromParent instanceof AnyXmlElementDescriptor)) {
return fromParent;
}
}
}
}
XmlElementDescriptor elementDescriptor = null;
final XmlNSDescriptor nsDescriptor = getNSDescriptor(namespace, false);
LOG.debug(
"Descriptor for namespace "
+ namespace
+ " is "
+ (nsDescriptor != null ? nsDescriptor.getClass().getCanonicalName() : "NULL"));
if (nsDescriptor != null) {
if (!DumbService.getInstance(getProject()).isDumb()
|| DumbService.isDumbAware(nsDescriptor)) {
elementDescriptor = nsDescriptor.getElementDescriptor(this);
}
}
if (elementDescriptor == null) {
return XmlUtil.findXmlDescriptorByType(this);
}
return elementDescriptor;
}