void removeNamespace(Namespace namespace) {
Namespace current = getNodeNamespace();
// Do not remove in-use namespace
if (namespace.is(current)) return;
NamedNodeMap attrs = this.dom.getAttributes();
for (int i = 0; i < attrs.getLength(); i++) {
XmlNode attr = XmlNode.createImpl(attrs.item(i));
if (namespace.is(attr.getNodeNamespace())) return;
}
// TODO I must confess I am not sure I understand the spec fully. See ECMA357 13.4.4.31
String existingPrefix = getExistingPrefixFor(namespace);
if (existingPrefix != null) {
if (namespace.isUnspecifiedPrefix()) {
// we should remove any namespace with this URI from scope; we do this by declaring a
// namespace with the same
// prefix as the existing prefix and setting its URI to the default namespace
declareNamespace(existingPrefix, getDefaultNamespace().getUri());
} else {
if (existingPrefix.equals(namespace.getPrefix())) {
declareNamespace(existingPrefix, getDefaultNamespace().getUri());
}
}
} else {
// the argument namespace is not declared in this scope, so do nothing.
}
}
void lookupPrefix(org.w3c.dom.Node node) {
if (node == null) throw new IllegalArgumentException("node must not be null");
String prefix = node.lookupPrefix(namespace.getUri());
if (prefix == null) {
// check to see if we match the default namespace
String defaultNamespace = node.lookupNamespaceURI(null);
if (defaultNamespace == null) defaultNamespace = "";
String nodeNamespace = namespace.getUri();
if (nodeNamespace.equals(defaultNamespace)) {
prefix = "";
}
}
int i = 0;
while (prefix == null) {
String generatedPrefix = "e4x_" + i++;
String generatedUri = node.lookupNamespaceURI(generatedPrefix);
if (generatedUri == null) {
prefix = generatedPrefix;
org.w3c.dom.Node top = node;
while (top.getParentNode() != null
&& top.getParentNode() instanceof org.w3c.dom.Element) {
top = top.getParentNode();
}
((org.w3c.dom.Element) top)
.setAttributeNS(
"http://www.w3.org/2000/xmlns/", "xmlns:" + prefix, namespace.getUri());
}
}
namespace.setPrefix(prefix);
}
static Namespace create(String prefix, String uri) {
if (prefix == null)
throw new IllegalArgumentException("Empty string represents default namespace prefix");
if (uri == null) throw new IllegalArgumentException("Namespace may not lack a URI");
Namespace rv = new Namespace();
rv.prefix = prefix;
rv.uri = uri;
return rv;
}
private void exportToScope(boolean sealed) {
xmlPrototype = newXML(XmlNode.createText(options, ""));
xmlListPrototype = newXMLList();
namespacePrototype = Namespace.create(this.globalScope, null, XmlNode.Namespace.GLOBAL);
qnamePrototype =
QName.create(
this, this.globalScope, null, XmlNode.QName.create(XmlNode.Namespace.create(""), ""));
xmlPrototype.exportAsJSClass(sealed);
xmlListPrototype.exportAsJSClass(sealed);
namespacePrototype.exportAsJSClass(sealed);
qnamePrototype.exportAsJSClass(sealed);
}
Namespace[] getNamespaces() {
Iterator i = map.keySet().iterator();
ArrayList rv = new ArrayList();
while (i.hasNext()) {
String prefix = (String) i.next();
String uri = (String) map.get(prefix);
Namespace n = Namespace.create(prefix, uri);
if (!n.isEmpty()) {
rv.add(n);
}
}
return (Namespace[]) rv.toArray(new Namespace[0]);
}
private Namespace getNodeNamespace() {
String uri = dom.getNamespaceURI();
String prefix = dom.getPrefix();
if (uri == null) uri = "";
if (prefix == null) prefix = "";
return Namespace.create(prefix, uri);
}
Namespace getNamespaceDeclaration(String prefix) {
if (prefix.equals("") && dom instanceof Attr) {
// Default namespaces do not apply to attributes; see XML Namespaces section 5.2
return Namespace.create("", "");
}
Namespaces rv = getAllNamespaces();
return rv.getNamespace(prefix);
}
String qualify(org.w3c.dom.Node node) {
if (namespace.getPrefix() == null) {
if (node != null) {
lookupPrefix(node);
} else {
if (namespace.getUri().equals("")) {
namespace.setPrefix("");
} else {
// TODO I am not sure this is right, but if we are creating a standalone node, I
// think we can set the
// default namespace on the node itself and not worry about setting a prefix
// for that namespace.
namespace.setPrefix("");
}
}
}
return qualify(namespace.getPrefix(), localName);
}
private void addNamespaces(Namespaces rv, Element element) {
if (element == null) throw new RuntimeException("element must not be null");
String myDefaultNamespace = toUri(element.lookupNamespaceURI(null));
String parentDefaultNamespace = "";
if (element.getParentNode() != null) {
parentDefaultNamespace = toUri(element.getParentNode().lookupNamespaceURI(null));
}
if (!myDefaultNamespace.equals(parentDefaultNamespace)
|| !(element.getParentNode() instanceof Element)) {
rv.declare(Namespace.create("", myDefaultNamespace));
}
NamedNodeMap attributes = element.getAttributes();
for (int i = 0; i < attributes.getLength(); i++) {
Attr attr = (Attr) attributes.item(i);
if (attr.getPrefix() != null && attr.getPrefix().equals("xmlns")) {
rv.declare(Namespace.create(attr.getLocalName(), attr.getValue()));
}
}
}
private Namespaces getAllNamespaces() {
Namespaces rv = new Namespaces();
Node target = this.dom;
if (target instanceof Attr) {
target = ((Attr) target).getOwnerElement();
}
while (target != null) {
if (target instanceof Element) {
addNamespaces(rv, (Element) target);
}
target = target.getParentNode();
}
// Fallback in case no namespace was declared
rv.declare(Namespace.create("", ""));
return rv;
}
/** @deprecated Use getNamespace() */
String getPrefix() {
return namespace.getPrefix();
}
/** @deprecated Use getNamespace() */
String getUri() {
return namespace.getUri();
}
void setAttribute(org.w3c.dom.Element element, String value) {
if (namespace.getPrefix() == null) lookupPrefix(element);
element.setAttributeNS(namespace.getUri(), qualify(namespace.getPrefix(), localName), value);
}
private boolean namespacesEqual(Namespace one, Namespace two) {
if (one == null && two == null) return true;
if (one == null || two == null) return false;
return equals(one.getUri(), two.getUri());
}
/** @deprecated */
static QName create(String uri, String localName, String prefix) {
return create(Namespace.create(prefix, uri), localName);
}
static Namespace create(String uri) {
Namespace rv = new Namespace();
rv.uri = uri;
return rv;
}
Namespace getNamespaceByUri(String uri) {
if (uriToPrefix.get(uri) == null) return null;
return Namespace.create(uri, (String) uriToPrefix.get(uri));
}
private String getExistingPrefixFor(Namespace namespace) {
if (getDefaultNamespace().getUri().equals(namespace.getUri())) {
return "";
}
return dom.lookupPrefix(namespace.getUri());
}
private Namespace getDefaultNamespace() {
String prefix = "";
String uri = (dom.lookupNamespaceURI(null) == null) ? "" : dom.lookupNamespaceURI(null);
return Namespace.create(prefix, uri);
}
Namespace getNamespace(String prefix) {
if (map.get(prefix) == null) return null;
return Namespace.create(prefix, (String) map.get(prefix));
}
