@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;
}
@Nullable
private XmlNSDescriptor getNsDescriptorFormDocType(
final XmlDoctype doctype, final XmlFile containingFile, final boolean forHtml) {
XmlNSDescriptor descriptor = getNSDescriptorFromMetaData(doctype.getMarkupDecl(), true);
final String filePath = getFilePathForLogging(containingFile);
final String dtdUri = XmlUtil.getDtdUri(doctype);
LOG.debug(
"DTD url for doctype " + doctype.getText() + " in file " + filePath + " is " + dtdUri);
if (dtdUri != null && !dtdUri.isEmpty()) {
XmlFile xmlFile = XmlUtil.findNamespace(containingFile, dtdUri);
if (xmlFile == null) {
// try to auto-detect it
xmlFile = XmlNamespaceIndex.guessDtd(dtdUri, containingFile);
}
final String schemaFilePath = getFilePathForLogging(xmlFile);
LOG.debug("Schema file for " + filePath + " is " + schemaFilePath);
XmlNSDescriptor descriptorFromDtd =
getNSDescriptorFromMetaData(xmlFile == null ? null : xmlFile.getDocument(), forHtml);
LOG.debug(
"Descriptor from meta data for schema file "
+ schemaFilePath
+ " is "
+ (descriptorFromDtd != null
? descriptorFromDtd.getClass().getCanonicalName()
: "NULL"));
if (descriptor != null && descriptorFromDtd != null) {
descriptor =
new XmlNSDescriptorSequence(new XmlNSDescriptor[] {descriptor, descriptorFromDtd});
} else if (descriptorFromDtd != null) {
descriptor = descriptorFromDtd;
}
}
return descriptor;
}
private XmlNSDescriptor getDefaultNSDescriptorInner(
final String namespace, final boolean strict) {
final XmlFile containingFile = XmlUtil.getContainingFile(this);
if (containingFile == null) return null;
final XmlProlog prolog = getProlog();
final XmlDoctype doctype = prolog != null ? prolog.getDoctype() : null;
boolean dtdUriFromDocTypeIsNamespace = false;
if (XmlUtil.HTML_URI.equals(namespace)) {
XmlNSDescriptor nsDescriptor =
doctype != null ? getNsDescriptorFormDocType(doctype, containingFile, true) : null;
if (doctype != null) {
LOG.debug(
"Descriptor from doctype "
+ doctype
+ " is "
+ (nsDescriptor != null ? nsDescriptor.getClass().getCanonicalName() : "NULL"));
}
if (nsDescriptor == null) {
String htmlns =
ExternalResourceManagerEx.getInstanceEx().getDefaultHtmlDoctype(getProject());
if (htmlns.isEmpty()) {
htmlns = Html5SchemaProvider.getHtml5SchemaLocation();
}
nsDescriptor = getDefaultNSDescriptor(htmlns, false);
}
return new HtmlNSDescriptorImpl(nsDescriptor);
} else if (XmlUtil.XHTML_URI.equals(namespace)) {
String xhtmlNamespace = XmlUtil.getDefaultXhtmlNamespace(getProject());
if (xhtmlNamespace == null || xhtmlNamespace.isEmpty()) {
xhtmlNamespace = Html5SchemaProvider.getXhtml5SchemaLocation();
}
return getDefaultNSDescriptor(xhtmlNamespace, false);
} else if (namespace != null && namespace != XmlUtil.EMPTY_URI) {
if (doctype == null || !namespace.equals(XmlUtil.getDtdUri(doctype))) {
boolean documentIsSchemaThatDefinesNs =
namespace.equals(XmlUtil.getTargetSchemaNsFromTag(getRootTag()));
final XmlFile xmlFile =
documentIsSchemaThatDefinesNs
? containingFile
: XmlUtil.findNamespace(containingFile, namespace);
if (xmlFile != null) {
final XmlDocument document = xmlFile.getDocument();
if (document != null) {
return (XmlNSDescriptor) document.getMetaData();
}
}
} else {
dtdUriFromDocTypeIsNamespace = true;
}
}
if (strict && !dtdUriFromDocTypeIsNamespace) return null;
if (doctype != null) {
XmlNSDescriptor descr = getNsDescriptorFormDocType(doctype, containingFile, false);
if (descr != null) {
return XmlExtension.getExtension(containingFile)
.getDescriptorFromDoctype(containingFile, descr);
}
}
if (strict) return null;
if (namespace == XmlUtil.EMPTY_URI) {
final XmlFile xmlFile = XmlUtil.findNamespace(containingFile, namespace);
if (xmlFile != null) {
return (XmlNSDescriptor) xmlFile.getDocument().getMetaData();
}
}
try {
final PsiFile fileFromText =
PsiFileFactory.getInstance(getProject())
.createFileFromText(
containingFile.getName() + ".dtd",
DTDLanguage.INSTANCE,
XmlUtil.generateDocumentDTD(this, false),
false,
false);
if (fileFromText instanceof XmlFile) {
fileFromText.putUserData(AUTO_GENERATED, Boolean.TRUE);
return (XmlNSDescriptor) ((XmlFile) fileFromText).getDocument().getMetaData();
}
} catch (ProcessCanceledException ex) {
throw ex;
} catch (RuntimeException ignored) {
} // e.g. dtd isn't mapped to xml type
return null;
}