public Object[] get(final PsiElement context, CompletionContext completionContext) {
XmlFile containingFile = null;
XmlFile descriptorFile = null;
final XmlTag tag = PsiTreeUtil.getParentOfType(context, XmlTag.class);
if (tag != null) {
containingFile = (XmlFile) tag.getContainingFile();
descriptorFile = findDescriptorFile(tag, containingFile);
} else {
final XmlDocument document = PsiTreeUtil.getParentOfType(context, XmlDocument.class);
if (document != null) {
containingFile = (XmlFile) document.getContainingFile();
final FileType ft = containingFile.getFileType();
if (ft != StdFileTypes.XML) {
final String namespace =
ft == StdFileTypes.XHTML || ft == StdFileTypes.JSPX
? XmlUtil.XHTML_URI
: XmlUtil.HTML_URI;
final XmlNSDescriptor nsDescriptor = document.getDefaultNSDescriptor(namespace, true);
if (nsDescriptor != null) {
descriptorFile = nsDescriptor.getDescriptorFile();
}
}
}
}
if (descriptorFile != null) {
final List<Object> results = new ArrayList<Object>();
final boolean acceptSystemEntities = containingFile.getFileType() == StdFileTypes.XML;
final PsiElementProcessor processor =
new PsiElementProcessor() {
public boolean execute(@NotNull final PsiElement element) {
if (element instanceof XmlEntityDecl) {
final XmlEntityDecl xmlEntityDecl = (XmlEntityDecl) element;
if (xmlEntityDecl.isInternalReference() || acceptSystemEntities) {
final String name = xmlEntityDecl.getName();
final Object _item = getLookupItem(xmlEntityDecl);
results.add(_item == null ? name : _item);
}
}
return true;
}
};
XmlUtil.processXmlElements(descriptorFile, processor, true);
if (descriptorFile != containingFile && containingFile.getFileType() == StdFileTypes.XML) {
final XmlProlog element = containingFile.getDocument().getProlog();
if (element != null) XmlUtil.processXmlElements(element, processor, true);
}
return ArrayUtil.toObjectArray(results);
}
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
private static Set<String> extractEmbeddedFileReferences(
XmlFile file, XmlFile context, final String url) {
final Set<String> result = new LinkedHashSet<>();
if (context != null) {
XmlEntityCache.copyEntityCaches(file, context);
}
XmlUtil.processXmlElements(
file,
new PsiElementProcessor() {
@Override
public boolean execute(@NotNull PsiElement element) {
if (element instanceof XmlEntityDecl) {
String candidateName = null;
for (PsiElement e = element.getLastChild(); e != null; e = e.getPrevSibling()) {
if (e instanceof XmlAttributeValue && candidateName == null) {
candidateName = e.getText().substring(1, e.getTextLength() - 1);
} else if (e instanceof XmlToken
&& candidateName != null
&& (((XmlToken) e).getTokenType() == XmlTokenType.XML_DOCTYPE_PUBLIC
|| ((XmlToken) e).getTokenType() == XmlTokenType.XML_DOCTYPE_SYSTEM)) {
if (!result.contains(candidateName)) {
result.add(candidateName);
}
break;
}
}
} else if (element instanceof XmlTag) {
final XmlTag tag = (XmlTag) element;
String schemaLocation = tag.getAttributeValue(XmlUtil.SCHEMA_LOCATION_ATT);
if (schemaLocation != null) {
// processing xsd:import && xsd:include
final PsiReference[] references =
tag.getAttribute(XmlUtil.SCHEMA_LOCATION_ATT).getValueElement().getReferences();
if (references.length > 0) {
String extension = FileUtilRt.getExtension(new File(url).getName());
final String namespace = tag.getAttributeValue("namespace");
if (namespace != null
&& schemaLocation.indexOf('/') == -1
&& !extension.equals(FileUtilRt.getExtension(schemaLocation))) {
result.add(
namespace.substring(0, namespace.lastIndexOf('/') + 1) + schemaLocation);
} else {
result.add(schemaLocation);
}
}
} else {
schemaLocation =
tag.getAttributeValue(
XmlUtil.SCHEMA_LOCATION_ATT, XmlUtil.XML_SCHEMA_INSTANCE_URI);
if (schemaLocation != null) {
final StringTokenizer tokenizer = new StringTokenizer(schemaLocation);
while (tokenizer.hasMoreTokens()) {
tokenizer.nextToken();
if (!tokenizer.hasMoreTokens()) break;
String location = tokenizer.nextToken();
result.add(location);
}
}
}
}
return true;
}
},
true,
true);
return result;
}