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+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format.js
+ */
+
+/**
+ * Class: OpenLayers.Format.XML
+ * Read and write XML. For cross-browser XML generation, use methods on an
+ * instance of the XML format class instead of on <code>document<end>.
+ * The DOM creation and traversing methods exposed here all mimic the
+ * W3C XML DOM methods. Create a new parser with the
+ * <OpenLayers.Format.XML> constructor.
+ *
+ * Inherits from:
+ * - <OpenLayers.Format>
+ */
+OpenLayers.Format.XML = OpenLayers.Class(OpenLayers.Format, {
+
+ /**
+ * Property: namespaces
+ * {Object} Mapping of namespace aliases to namespace URIs. Properties
+ * of this object should not be set individually. Read-only. All
+ * XML subclasses should have their own namespaces object. Use
+ * <setNamespace> to add or set a namespace alias after construction.
+ */
+ namespaces: null,
+
+ /**
+ * Property: namespaceAlias
+ * {Object} Mapping of namespace URI to namespace alias. This object
+ * is read-only. Use <setNamespace> to add or set a namespace alias.
+ */
+ namespaceAlias: null,
+
+ /**
+ * Property: defaultPrefix
+ * {String} The default namespace alias for creating element nodes.
+ */
+ defaultPrefix: null,
+
+ /**
+ * Property: readers
+ * Contains public functions, grouped by namespace prefix, that will
+ * be applied when a namespaced node is found matching the function
+ * name. The function will be applied in the scope of this parser
+ * with two arguments: the node being read and a context object passed
+ * from the parent.
+ */
+ readers: {},
+
+ /**
+ * Property: writers
+ * As a compliment to the <readers> property, this structure contains public
+ * writing functions grouped by namespace alias and named like the
+ * node names they produce.
+ */
+ writers: {},
+
+ /**
+ * Property: xmldom
+ * {XMLDom} If this browser uses ActiveX, this will be set to a XMLDOM
+ * object. It is not intended to be a browser sniffing property.
+ * Instead, the xmldom property is used instead of <code>document<end>
+ * where namespaced node creation methods are not supported. In all
+ * other browsers, this remains null.
+ */
+ xmldom: null,
+
+ /**
+ * Constructor: OpenLayers.Format.XML
+ * Construct an XML parser. The parser is used to read and write XML.
+ * Reading XML from a string returns a DOM element. Writing XML from
+ * a DOM element returns a string.
+ *
+ * Parameters:
+ * options - {Object} Optional object whose properties will be set on
+ * the object.
+ */
+ initialize: function(options) {
+ if(window.ActiveXObject) {
+ this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
+ }
+ OpenLayers.Format.prototype.initialize.apply(this, [options]);
+ // clone the namespace object and set all namespace aliases
+ this.namespaces = OpenLayers.Util.extend({}, this.namespaces);
+ this.namespaceAlias = {};
+ for(var alias in this.namespaces) {
+ this.namespaceAlias[this.namespaces[alias]] = alias;
+ }
+ },
+
+ /**
+ * APIMethod: destroy
+ * Clean up.
+ */
+ destroy: function() {
+ this.xmldom = null;
+ OpenLayers.Format.prototype.destroy.apply(this, arguments);
+ },
+
+ /**
+ * Method: setNamespace
+ * Set a namespace alias and URI for the format.
+ *
+ * Parameters:
+ * alias - {String} The namespace alias (prefix).
+ * uri - {String} The namespace URI.
+ */
+ setNamespace: function(alias, uri) {
+ this.namespaces[alias] = uri;
+ this.namespaceAlias[uri] = alias;
+ },
+
+ /**
+ * APIMethod: read
+ * Deserialize a XML string and return a DOM node.
+ *
+ * Parameters:
+ * text - {String} A XML string
+
+ * Returns:
+ * {DOMElement} A DOM node
+ */
+ read: function(text) {
+ var index = text.indexOf('<');
+ if(index > 0) {
+ text = text.substring(index);
+ }
+ var node = OpenLayers.Util.Try(
+ OpenLayers.Function.bind((
+ function() {
+ var xmldom;
+ /**
+ * Since we want to be able to call this method on the prototype
+ * itself, this.xmldom may not exist even if in IE.
+ */
+ if(window.ActiveXObject && !this.xmldom) {
+ xmldom = new ActiveXObject("Microsoft.XMLDOM");
+ } else {
+ xmldom = this.xmldom;
+
+ }
+ xmldom.loadXML(text);
+ return xmldom;
+ }
+ ), this),
+ function() {
+ return new DOMParser().parseFromString(text, 'text/xml');
+ },
+ function() {
+ var req = new XMLHttpRequest();
+ req.open("GET", "data:" + "text/xml" +
+ ";charset=utf-8," + encodeURIComponent(text), false);
+ if(req.overrideMimeType) {
+ req.overrideMimeType("text/xml");
+ }
+ req.send(null);
+ return req.responseXML;
+ }
+ );
+
+ if(this.keepData) {
+ this.data = node;
+ }
+
+ return node;
+ },
+
+ /**
+ * APIMethod: write
+ * Serialize a DOM node into a XML string.
+ *
+ * Parameters:
+ * node - {DOMElement} A DOM node.
+ *
+ * Returns:
+ * {String} The XML string representation of the input node.
+ */
+ write: function(node) {
+ var data;
+ if(this.xmldom) {
+ data = node.xml;
+ } else {
+ var serializer = new XMLSerializer();
+ if (node.nodeType == 1) {
+ // Add nodes to a document before serializing. Everything else
+ // is serialized as is. This may need more work. See #1218 .
+ var doc = document.implementation.createDocument("", "", null);
+ if (doc.importNode) {
+ node = doc.importNode(node, true);
+ }
+ doc.appendChild(node);
+ data = serializer.serializeToString(doc);
+ } else {
+ data = serializer.serializeToString(node);
+ }
+ }
+ return data;
+ },
+
+ /**
+ * APIMethod: createElementNS
+ * Create a new element with namespace. This node can be appended to
+ * another node with the standard node.appendChild method. For
+ * cross-browser support, this method must be used instead of
+ * document.createElementNS.
+ *
+ * Parameters:
+ * uri - {String} Namespace URI for the element.
+ * name - {String} The qualified name of the element (prefix:localname).
+ *
+ * Returns:
+ * {Element} A DOM element with namespace.
+ */
+ createElementNS: function(uri, name) {
+ var element;
+ if(this.xmldom) {
+ if(typeof uri == "string") {
+ element = this.xmldom.createNode(1, name, uri);
+ } else {
+ element = this.xmldom.createNode(1, name, "");
+ }
+ } else {
+ element = document.createElementNS(uri, name);
+ }
+ return element;
+ },
+
+ /**
+ * APIMethod: createDocumentFragment
+ * Create a document fragment node that can be appended to another node
+ * created by createElementNS. This will call
+ * document.createDocumentFragment outside of IE. In IE, the ActiveX
+ * object's createDocumentFragment method is used.
+ *
+ * Returns:
+ * {Element} A document fragment.
+ */
+ createDocumentFragment: function() {
+ var element;
+ if (this.xmldom) {
+ element = this.xmldom.createDocumentFragment();
+ } else {
+ element = document.createDocumentFragment();
+ }
+ return element;
+ },
+
+ /**
+ * APIMethod: createTextNode
+ * Create a text node. This node can be appended to another node with
+ * the standard node.appendChild method. For cross-browser support,
+ * this method must be used instead of document.createTextNode.
+ *
+ * Parameters:
+ * text - {String} The text of the node.
+ *
+ * Returns:
+ * {DOMElement} A DOM text node.
+ */
+ createTextNode: function(text) {
+ var node;
+ if (typeof text !== "string") {
+ text = String(text);
+ }
+ if(this.xmldom) {
+ node = this.xmldom.createTextNode(text);
+ } else {
+ node = document.createTextNode(text);
+ }
+ return node;
+ },
+
+ /**
+ * APIMethod: getElementsByTagNameNS
+ * Get a list of elements on a node given the namespace URI and local name.
+ * To return all nodes in a given namespace, use '*' for the name
+ * argument. To return all nodes of a given (local) name, regardless
+ * of namespace, use '*' for the uri argument.
+ *
+ * Parameters:
+ * node - {Element} Node on which to search for other nodes.
+ * uri - {String} Namespace URI.
+ * name - {String} Local name of the tag (without the prefix).
+ *
+ * Returns:
+ * {NodeList} A node list or array of elements.
+ */
+ getElementsByTagNameNS: function(node, uri, name) {
+ var elements = [];
+ if(node.getElementsByTagNameNS) {
+ elements = node.getElementsByTagNameNS(uri, name);
+ } else {
+ // brute force method
+ var allNodes = node.getElementsByTagName("*");
+ var potentialNode, fullName;
+ for(var i=0, len=allNodes.length; i<len; ++i) {
+ potentialNode = allNodes[i];
+ fullName = (potentialNode.prefix) ?
+ (potentialNode.prefix + ":" + name) : name;
+ if((name == "*") || (fullName == potentialNode.nodeName)) {
+ if((uri == "*") || (uri == potentialNode.namespaceURI)) {
+ elements.push(potentialNode);
+ }
+ }
+ }
+ }
+ return elements;
+ },
+
+ /**
+ * APIMethod: getAttributeNodeNS
+ * Get an attribute node given the namespace URI and local name.
+ *
+ * Parameters:
+ * node - {Element} Node on which to search for attribute nodes.
+ * uri - {String} Namespace URI.
+ * name - {String} Local name of the attribute (without the prefix).
+ *
+ * Returns:
+ * {DOMElement} An attribute node or null if none found.
+ */
+ getAttributeNodeNS: function(node, uri, name) {
+ var attributeNode = null;
+ if(node.getAttributeNodeNS) {
+ attributeNode = node.getAttributeNodeNS(uri, name);
+ } else {
+ var attributes = node.attributes;
+ var potentialNode, fullName;
+ for(var i=0, len=attributes.length; i<len; ++i) {
+ potentialNode = attributes[i];
+ if(potentialNode.namespaceURI == uri) {
+ fullName = (potentialNode.prefix) ?
+ (potentialNode.prefix + ":" + name) : name;
+ if(fullName == potentialNode.nodeName) {
+ attributeNode = potentialNode;
+ break;
+ }
+ }
+ }
+ }
+ return attributeNode;
+ },
+
+ /**
+ * APIMethod: getAttributeNS
+ * Get an attribute value given the namespace URI and local name.
+ *
+ * Parameters:
+ * node - {Element} Node on which to search for an attribute.
+ * uri - {String} Namespace URI.
+ * name - {String} Local name of the attribute (without the prefix).
+ *
+ * Returns:
+ * {String} An attribute value or and empty string if none found.
+ */
+ getAttributeNS: function(node, uri, name) {
+ var attributeValue = "";
+ if(node.getAttributeNS) {
+ attributeValue = node.getAttributeNS(uri, name) || "";
+ } else {
+ var attributeNode = this.getAttributeNodeNS(node, uri, name);
+ if(attributeNode) {
+ attributeValue = attributeNode.nodeValue;
+ }
+ }
+ return attributeValue;
+ },
+
+ /**
+ * APIMethod: getChildValue
+ * Get the textual value of the node if it exists, or return an
+ * optional default string. Returns an empty string if no first child
+ * exists and no default value is supplied.
+ *
+ * Parameters:
+ * node - {DOMElement} The element used to look for a first child value.
+ * def - {String} Optional string to return in the event that no
+ * first child value exists.
+ *
+ * Returns:
+ * {String} The value of the first child of the given node.
+ */
+ getChildValue: function(node, def) {
+ var value = def || "";
+ if(node) {
+ for(var child=node.firstChild; child; child=child.nextSibling) {
+ switch(child.nodeType) {
+ case 3: // text node
+ case 4: // cdata section
+ value += child.nodeValue;
+ }
+ }
+ }
+ return value;
+ },
+
+ /**
+ * APIMethod: isSimpleContent
+ * Test if the given node has only simple content (i.e. no child element
+ * nodes).
+ *
+ * Parameters:
+ * node - {DOMElement} An element node.
+ *
+ * Returns:
+ * {Boolean} The node has no child element nodes (nodes of type 1).
+ */
+ isSimpleContent: function(node) {
+ var simple = true;
+ for(var child=node.firstChild; child; child=child.nextSibling) {
+ if(child.nodeType === 1) {
+ simple = false;
+ break;
+ }
+ }
+ return simple;
+ },
+
+ /**
+ * APIMethod: contentType
+ * Determine the content type for a given node.
+ *
+ * Parameters:
+ * node - {DOMElement}
+ *
+ * Returns:
+ * {Integer} One of OpenLayers.Format.XML.CONTENT_TYPE.{EMPTY,SIMPLE,COMPLEX,MIXED}
+ * if the node has no, simple, complex, or mixed content.
+ */
+ contentType: function(node) {
+ var simple = false,
+ complex = false;
+
+ var type = OpenLayers.Format.XML.CONTENT_TYPE.EMPTY;
+
+ for(var child=node.firstChild; child; child=child.nextSibling) {
+ switch(child.nodeType) {
+ case 1: // element
+ complex = true;
+ break;
+ case 8: // comment
+ break;
+ default:
+ simple = true;
+ }
+ if(complex && simple) {
+ break;
+ }
+ }
+
+ if(complex && simple) {
+ type = OpenLayers.Format.XML.CONTENT_TYPE.MIXED;
+ } else if(complex) {
+ return OpenLayers.Format.XML.CONTENT_TYPE.COMPLEX;
+ } else if(simple) {
+ return OpenLayers.Format.XML.CONTENT_TYPE.SIMPLE;
+ }
+ return type;
+ },
+
+ /**
+ * APIMethod: hasAttributeNS
+ * Determine whether a node has a particular attribute matching the given
+ * name and namespace.
+ *
+ * Parameters:
+ * node - {Element} Node on which to search for an attribute.
+ * uri - {String} Namespace URI.
+ * name - {String} Local name of the attribute (without the prefix).
+ *
+ * Returns:
+ * {Boolean} The node has an attribute matching the name and namespace.
+ */
+ hasAttributeNS: function(node, uri, name) {
+ var found = false;
+ if(node.hasAttributeNS) {
+ found = node.hasAttributeNS(uri, name);
+ } else {
+ found = !!this.getAttributeNodeNS(node, uri, name);
+ }
+ return found;
+ },
+
+ /**
+ * APIMethod: setAttributeNS
+ * Adds a new attribute or changes the value of an attribute with the given
+ * namespace and name.
+ *
+ * Parameters:
+ * node - {Element} Element node on which to set the attribute.
+ * uri - {String} Namespace URI for the attribute.
+ * name - {String} Qualified name (prefix:localname) for the attribute.
+ * value - {String} Attribute value.
+ */
+ setAttributeNS: function(node, uri, name, value) {
+ if(node.setAttributeNS) {
+ node.setAttributeNS(uri, name, value);
+ } else {
+ if(this.xmldom) {
+ if(uri) {
+ var attribute = node.ownerDocument.createNode(
+ 2, name, uri
+ );
+ attribute.nodeValue = value;
+ node.setAttributeNode(attribute);
+ } else {
+ node.setAttribute(name, value);
+ }
+ } else {
+ throw "setAttributeNS not implemented";
+ }
+ }
+ },
+
+ /**
+ * Method: createElementNSPlus
+ * Shorthand for creating namespaced elements with optional attributes and
+ * child text nodes.
+ *
+ * Parameters:
+ * name - {String} The qualified node name.
+ * options - {Object} Optional object for node configuration.
+ *
+ * Valid options:
+ * uri - {String} Optional namespace uri for the element - supply a prefix
+ * instead if the namespace uri is a property of the format's namespace
+ * object.
+ * attributes - {Object} Optional attributes to be set using the
+ * <setAttributes> method.
+ * value - {String} Optional text to be appended as a text node.
+ *
+ * Returns:
+ * {Element} An element node.
+ */
+ createElementNSPlus: function(name, options) {
+ options = options || {};
+ // order of prefix preference
+ // 1. in the uri option
+ // 2. in the prefix option
+ // 3. in the qualified name
+ // 4. from the defaultPrefix
+ var uri = options.uri || this.namespaces[options.prefix];
+ if(!uri) {
+ var loc = name.indexOf(":");
+ uri = this.namespaces[name.substring(0, loc)];
+ }
+ if(!uri) {
+ uri = this.namespaces[this.defaultPrefix];
+ }
+ var node = this.createElementNS(uri, name);
+ if(options.attributes) {
+ this.setAttributes(node, options.attributes);
+ }
+ var value = options.value;
+ if(value != null) {
+ node.appendChild(this.createTextNode(value));
+ }
+ return node;
+ },
+
+ /**
+ * Method: setAttributes
+ * Set multiple attributes given key value pairs from an object.
+ *
+ * Parameters:
+ * node - {Element} An element node.
+ * obj - {Object || Array} An object whose properties represent attribute
+ * names and values represent attribute values. If an attribute name
+ * is a qualified name ("prefix:local"), the prefix will be looked up
+ * in the parsers {namespaces} object. If the prefix is found,
+ * setAttributeNS will be used instead of setAttribute.
+ */
+ setAttributes: function(node, obj) {
+ var value, uri;
+ for(var name in obj) {
+ if(obj[name] != null && obj[name].toString) {
+ value = obj[name].toString();
+ // check for qualified attribute name ("prefix:local")
+ uri = this.namespaces[name.substring(0, name.indexOf(":"))] || null;
+ this.setAttributeNS(node, uri, name, value);
+ }
+ }
+ },
+
+ /**
+ * Method: readNode
+ * Shorthand for applying one of the named readers given the node
+ * namespace and local name. Readers take two args (node, obj) and
+ * generally extend or modify the second.
+ *
+ * Parameters:
+ * node - {DOMElement} The node to be read (required).
+ * obj - {Object} The object to be modified (optional).
+ *
+ * Returns:
+ * {Object} The input object, modified (or a new one if none was provided).
+ */
+ readNode: function(node, obj) {
+ if(!obj) {
+ obj = {};
+ }
+ var group = this.readers[node.namespaceURI ? this.namespaceAlias[node.namespaceURI]: this.defaultPrefix];
+ if(group) {
+ var local = node.localName || node.nodeName.split(":").pop();
+ var reader = group[local] || group["*"];
+ if(reader) {
+ reader.apply(this, [node, obj]);
+ }
+ }
+ return obj;
+ },
+
+ /**
+ * Method: readChildNodes
+ * Shorthand for applying the named readers to all children of a node.
+ * For each child of type 1 (element), <readSelf> is called.
+ *
+ * Parameters:
+ * node - {DOMElement} The node to be read (required).
+ * obj - {Object} The object to be modified (optional).
+ *
+ * Returns:
+ * {Object} The input object, modified.
+ */
+ readChildNodes: function(node, obj) {
+ if(!obj) {
+ obj = {};
+ }
+ var children = node.childNodes;
+ var child;
+ for(var i=0, len=children.length; i<len; ++i) {
+ child = children[i];
+ if(child.nodeType == 1) {
+ this.readNode(child, obj);
+ }
+ }
+ return obj;
+ },
+
+ /**
+ * Method: writeNode
+ * Shorthand for applying one of the named writers and appending the
+ * results to a node. If a qualified name is not provided for the
+ * second argument (and a local name is used instead), the namespace
+ * of the parent node will be assumed.
+ *
+ * Parameters:
+ * name - {String} The name of a node to generate. If a qualified name
+ * (e.g. "pre:Name") is used, the namespace prefix is assumed to be
+ * in the <writers> group. If a local name is used (e.g. "Name") then
+ * the namespace of the parent is assumed. If a local name is used
+ * and no parent is supplied, then the default namespace is assumed.
+ * obj - {Object} Structure containing data for the writer.
+ * parent - {DOMElement} Result will be appended to this node. If no parent
+ * is supplied, the node will not be appended to anything.
+ *
+ * Returns:
+ * {DOMElement} The child node.
+ */
+ writeNode: function(name, obj, parent) {
+ var prefix, local;
+ var split = name.indexOf(":");
+ if(split > 0) {
+ prefix = name.substring(0, split);
+ local = name.substring(split + 1);
+ } else {
+ if(parent) {
+ prefix = this.namespaceAlias[parent.namespaceURI];
+ } else {
+ prefix = this.defaultPrefix;
+ }
+ local = name;
+ }
+ var child = this.writers[prefix][local].apply(this, [obj]);
+ if(parent) {
+ parent.appendChild(child);
+ }
+ return child;
+ },
+
+ /**
+ * APIMethod: getChildEl
+ * Get the first child element. Optionally only return the first child
+ * if it matches the given name and namespace URI.
+ *
+ * Parameters:
+ * node - {DOMElement} The parent node.
+ * name - {String} Optional node name (local) to search for.
+ * uri - {String} Optional namespace URI to search for.
+ *
+ * Returns:
+ * {DOMElement} The first child. Returns null if no element is found, if
+ * something significant besides an element is found, or if the element
+ * found does not match the optional name and uri.
+ */
+ getChildEl: function(node, name, uri) {
+ return node && this.getThisOrNextEl(node.firstChild, name, uri);
+ },
+
+ /**
+ * APIMethod: getNextEl
+ * Get the next sibling element. Optionally get the first sibling only
+ * if it matches the given local name and namespace URI.
+ *
+ * Parameters:
+ * node - {DOMElement} The node.
+ * name - {String} Optional local name of the sibling to search for.
+ * uri - {String} Optional namespace URI of the sibling to search for.
+ *
+ * Returns:
+ * {DOMElement} The next sibling element. Returns null if no element is
+ * found, something significant besides an element is found, or the
+ * found element does not match the optional name and uri.
+ */
+ getNextEl: function(node, name, uri) {
+ return node && this.getThisOrNextEl(node.nextSibling, name, uri);
+ },
+
+ /**
+ * Method: getThisOrNextEl
+ * Return this node or the next element node. Optionally get the first
+ * sibling with the given local name or namespace URI.
+ *
+ * Parameters:
+ * node - {DOMElement} The node.
+ * name - {String} Optional local name of the sibling to search for.
+ * uri - {String} Optional namespace URI of the sibling to search for.
+ *
+ * Returns:
+ * {DOMElement} The next sibling element. Returns null if no element is
+ * found, something significant besides an element is found, or the
+ * found element does not match the query.
+ */
+ getThisOrNextEl: function(node, name, uri) {
+ outer: for(var sibling=node; sibling; sibling=sibling.nextSibling) {
+ switch(sibling.nodeType) {
+ case 1: // Element
+ if((!name || name === (sibling.localName || sibling.nodeName.split(":").pop())) &&
+ (!uri || uri === sibling.namespaceURI)) {
+ // matches
+ break outer;
+ }
+ sibling = null;
+ break outer;
+ case 3: // Text
+ if(/^\s*$/.test(sibling.nodeValue)) {
+ break;
+ }
+ case 4: // CDATA
+ case 6: // ENTITY_NODE
+ case 12: // NOTATION_NODE
+ case 10: // DOCUMENT_TYPE_NODE
+ case 11: // DOCUMENT_FRAGMENT_NODE
+ sibling = null;
+ break outer;
+ } // ignore comments and processing instructions
+ }
+ return sibling || null;
+ },
+
+ /**
+ * APIMethod: lookupNamespaceURI
+ * Takes a prefix and returns the namespace URI associated with it on the given
+ * node if found (and null if not). Supplying null for the prefix will
+ * return the default namespace.
+ *
+ * For browsers that support it, this calls the native lookupNamesapceURI
+ * function. In other browsers, this is an implementation of
+ * http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
+ *
+ * For browsers that don't support the attribute.ownerElement property, this
+ * method cannot be called on attribute nodes.
+ *
+ * Parameters:
+ * node - {DOMElement} The node from which to start looking.
+ * prefix - {String} The prefix to lookup or null to lookup the default namespace.
+ *
+ * Returns:
+ * {String} The namespace URI for the given prefix. Returns null if the prefix
+ * cannot be found or the node is the wrong type.
+ */
+ lookupNamespaceURI: function(node, prefix) {
+ var uri = null;
+ if(node) {
+ if(node.lookupNamespaceURI) {
+ uri = node.lookupNamespaceURI(prefix);
+ } else {
+ outer: switch(node.nodeType) {
+ case 1: // ELEMENT_NODE
+ if(node.namespaceURI !== null && node.prefix === prefix) {
+ uri = node.namespaceURI;
+ break outer;
+ }
+ var len = node.attributes.length;
+ if(len) {
+ var attr;
+ for(var i=0; i<len; ++i) {
+ attr = node.attributes[i];
+ if(attr.prefix === "xmlns" && attr.name === "xmlns:" + prefix) {
+ uri = attr.value || null;
+ break outer;
+ } else if(attr.name === "xmlns" && prefix === null) {
+ uri = attr.value || null;
+ break outer;
+ }
+ }
+ }
+ uri = this.lookupNamespaceURI(node.parentNode, prefix);
+ break outer;
+ case 2: // ATTRIBUTE_NODE
+ uri = this.lookupNamespaceURI(node.ownerElement, prefix);
+ break outer;
+ case 9: // DOCUMENT_NODE
+ uri = this.lookupNamespaceURI(node.documentElement, prefix);
+ break outer;
+ case 6: // ENTITY_NODE
+ case 12: // NOTATION_NODE
+ case 10: // DOCUMENT_TYPE_NODE
+ case 11: // DOCUMENT_FRAGMENT_NODE
+ break outer;
+ default:
+ // TEXT_NODE (3), CDATA_SECTION_NODE (4), ENTITY_REFERENCE_NODE (5),
+ // PROCESSING_INSTRUCTION_NODE (7), COMMENT_NODE (8)
+ uri = this.lookupNamespaceURI(node.parentNode, prefix);
+ break outer;
+ }
+ }
+ }
+ return uri;
+ },
+
+ /**
+ * Method: getXMLDoc
+ * Get an XML document for nodes that are not supported in HTML (e.g.
+ * createCDATASection). On IE, this will either return an existing or
+ * create a new <xmldom> on the instance. On other browsers, this will
+ * either return an existing or create a new shared document (see
+ * <OpenLayers.Format.XML.document>).
+ *
+ * Returns:
+ * {XMLDocument}
+ */
+ getXMLDoc: function() {
+ if (!OpenLayers.Format.XML.document && !this.xmldom) {
+ if (document.implementation && document.implementation.createDocument) {
+ OpenLayers.Format.XML.document =
+ document.implementation.createDocument("", "", null);
+ } else if (!this.xmldom && window.ActiveXObject) {
+ this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
+ }
+ }
+ return OpenLayers.Format.XML.document || this.xmldom;
+ },
+
+ CLASS_NAME: "OpenLayers.Format.XML"
+
+});
+
+OpenLayers.Format.XML.CONTENT_TYPE = {EMPTY: 0, SIMPLE: 1, COMPLEX: 2, MIXED: 3};
+
+/**
+ * APIFunction: OpenLayers.Format.XML.lookupNamespaceURI
+ * Takes a prefix and returns the namespace URI associated with it on the given
+ * node if found (and null if not). Supplying null for the prefix will
+ * return the default namespace.
+ *
+ * For browsers that support it, this calls the native lookupNamesapceURI
+ * function. In other browsers, this is an implementation of
+ * http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
+ *
+ * For browsers that don't support the attribute.ownerElement property, this
+ * method cannot be called on attribute nodes.
+ *
+ * Parameters:
+ * node - {DOMElement} The node from which to start looking.
+ * prefix - {String} The prefix to lookup or null to lookup the default namespace.
+ *
+ * Returns:
+ * {String} The namespace URI for the given prefix. Returns null if the prefix
+ * cannot be found or the node is the wrong type.
+ */
+OpenLayers.Format.XML.lookupNamespaceURI = OpenLayers.Function.bind(
+ OpenLayers.Format.XML.prototype.lookupNamespaceURI,
+ OpenLayers.Format.XML.prototype
+);
+
+/**
+ * Property: OpenLayers.Format.XML.document
+ * {XMLDocument} XML document to reuse for creating non-HTML compliant nodes,
+ * like document.createCDATASection.
+ */
+OpenLayers.Format.XML.document = null;