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;
}
@NotNull
private static XmlFileHeader calcXmlFileHeader(final XmlFile file) {
if (file instanceof PsiFileEx
&& ((PsiFileEx) file).isContentsLoaded()
&& file.getNode().isParsed()) {
return computeHeaderByPsi(file);
}
if (!XmlUtil.isStubBuilding() && file.getFileType() == XmlFileType.INSTANCE) {
VirtualFile virtualFile = file.getVirtualFile();
if (virtualFile instanceof VirtualFileWithId) {
ObjectStubTree tree =
StubTreeLoader.getInstance().readFromVFile(file.getProject(), virtualFile);
if (tree != null) {
Stub root = tree.getRoot();
if (root instanceof FileStub) {
return ((FileStub) root).getHeader();
}
}
}
}
if (!file.isValid()) return XmlFileHeader.EMPTY;
return NanoXmlUtil.parseHeader(file);
}
