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/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
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* full list of contributors). Published under the 2-clause BSD license.
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* See license.txt in the OpenLayers distribution or repository for the
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* full text of the license. */
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/**
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* @requires OpenLayers/Format.js
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*/
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/**
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* Class: OpenLayers.Format.XML
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* Read and write XML. For cross-browser XML generation, use methods on an
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* instance of the XML format class instead of on <code>document<end>.
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* The DOM creation and traversing methods exposed here all mimic the
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* W3C XML DOM methods. Create a new parser with the
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* <OpenLayers.Format.XML> constructor.
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*
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* Inherits from:
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* - <OpenLayers.Format>
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*/
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OpenLayers.Format.XML = OpenLayers.Class(OpenLayers.Format, {
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/**
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* Property: namespaces
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* {Object} Mapping of namespace aliases to namespace URIs. Properties
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* of this object should not be set individually. Read-only. All
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* XML subclasses should have their own namespaces object. Use
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* <setNamespace> to add or set a namespace alias after construction.
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*/
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namespaces: null,
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/**
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* Property: namespaceAlias
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* {Object} Mapping of namespace URI to namespace alias. This object
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* is read-only. Use <setNamespace> to add or set a namespace alias.
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*/
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namespaceAlias: null,
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/**
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* Property: defaultPrefix
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* {String} The default namespace alias for creating element nodes.
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*/
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defaultPrefix: null,
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/**
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* Property: readers
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* Contains public functions, grouped by namespace prefix, that will
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* be applied when a namespaced node is found matching the function
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* name. The function will be applied in the scope of this parser
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* with two arguments: the node being read and a context object passed
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* from the parent.
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*/
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readers: {},
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/**
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* Property: writers
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* As a compliment to the <readers> property, this structure contains public
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* writing functions grouped by namespace alias and named like the
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* node names they produce.
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*/
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writers: {},
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/**
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* Property: xmldom
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* {XMLDom} If this browser uses ActiveX, this will be set to a XMLDOM
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* object. It is not intended to be a browser sniffing property.
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* Instead, the xmldom property is used instead of <code>document<end>
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* where namespaced node creation methods are not supported. In all
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* other browsers, this remains null.
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*/
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xmldom: null,
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/**
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* Constructor: OpenLayers.Format.XML
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* Construct an XML parser. The parser is used to read and write XML.
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* Reading XML from a string returns a DOM element. Writing XML from
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* a DOM element returns a string.
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*
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* Parameters:
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* options - {Object} Optional object whose properties will be set on
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* the object.
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*/
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initialize: function(options) {
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if(window.ActiveXObject) {
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this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
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}
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OpenLayers.Format.prototype.initialize.apply(this, [options]);
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// clone the namespace object and set all namespace aliases
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this.namespaces = OpenLayers.Util.extend({}, this.namespaces);
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this.namespaceAlias = {};
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for(var alias in this.namespaces) {
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this.namespaceAlias[this.namespaces[alias]] = alias;
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}
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},
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/**
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* APIMethod: destroy
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* Clean up.
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*/
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destroy: function() {
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this.xmldom = null;
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OpenLayers.Format.prototype.destroy.apply(this, arguments);
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},
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/**
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* Method: setNamespace
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* Set a namespace alias and URI for the format.
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*
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* Parameters:
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* alias - {String} The namespace alias (prefix).
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* uri - {String} The namespace URI.
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*/
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setNamespace: function(alias, uri) {
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this.namespaces[alias] = uri;
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this.namespaceAlias[uri] = alias;
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},
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/**
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* APIMethod: read
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* Deserialize a XML string and return a DOM node.
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*
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* Parameters:
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* text - {String} A XML string
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* Returns:
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* {DOMElement} A DOM node
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*/
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read: function(text) {
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var index = text.indexOf('<');
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if(index > 0) {
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text = text.substring(index);
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}
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var node = OpenLayers.Util.Try(
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OpenLayers.Function.bind((
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function() {
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var xmldom;
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/**
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* Since we want to be able to call this method on the prototype
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* itself, this.xmldom may not exist even if in IE.
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*/
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if(window.ActiveXObject && !this.xmldom) {
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xmldom = new ActiveXObject("Microsoft.XMLDOM");
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} else {
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xmldom = this.xmldom;
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}
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xmldom.loadXML(text);
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return xmldom;
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}
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), this),
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function() {
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return new DOMParser().parseFromString(text, 'text/xml');
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},
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function() {
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var req = new XMLHttpRequest();
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req.open("GET", "data:" + "text/xml" +
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";charset=utf-8," + encodeURIComponent(text), false);
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if(req.overrideMimeType) {
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req.overrideMimeType("text/xml");
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}
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req.send(null);
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return req.responseXML;
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}
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);
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if(this.keepData) {
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this.data = node;
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}
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return node;
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},
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/**
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* APIMethod: write
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* Serialize a DOM node into a XML string.
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*
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* Parameters:
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* node - {DOMElement} A DOM node.
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*
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* Returns:
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* {String} The XML string representation of the input node.
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*/
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write: function(node) {
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var data;
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if(this.xmldom) {
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data = node.xml;
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} else {
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var serializer = new XMLSerializer();
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if (node.nodeType == 1) {
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// Add nodes to a document before serializing. Everything else
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// is serialized as is. This may need more work. See #1218 .
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var doc = document.implementation.createDocument("", "", null);
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if (doc.importNode) {
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node = doc.importNode(node, true);
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}
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doc.appendChild(node);
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data = serializer.serializeToString(doc);
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} else {
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data = serializer.serializeToString(node);
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}
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}
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return data;
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},
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/**
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* APIMethod: createElementNS
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* Create a new element with namespace. This node can be appended to
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* another node with the standard node.appendChild method. For
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* cross-browser support, this method must be used instead of
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* document.createElementNS.
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*
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* Parameters:
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* uri - {String} Namespace URI for the element.
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* name - {String} The qualified name of the element (prefix:localname).
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*
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* Returns:
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* {Element} A DOM element with namespace.
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*/
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createElementNS: function(uri, name) {
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var element;
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if(this.xmldom) {
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if(typeof uri == "string") {
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element = this.xmldom.createNode(1, name, uri);
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} else {
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element = this.xmldom.createNode(1, name, "");
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}
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} else {
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element = document.createElementNS(uri, name);
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}
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return element;
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},
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/**
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* APIMethod: createDocumentFragment
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* Create a document fragment node that can be appended to another node
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* created by createElementNS. This will call
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* document.createDocumentFragment outside of IE. In IE, the ActiveX
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* object's createDocumentFragment method is used.
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*
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* Returns:
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* {Element} A document fragment.
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*/
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createDocumentFragment: function() {
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var element;
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if (this.xmldom) {
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element = this.xmldom.createDocumentFragment();
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} else {
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element = document.createDocumentFragment();
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}
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return element;
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},
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/**
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* APIMethod: createTextNode
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* Create a text node. This node can be appended to another node with
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* the standard node.appendChild method. For cross-browser support,
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* this method must be used instead of document.createTextNode.
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*
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* Parameters:
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* text - {String} The text of the node.
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*
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* Returns:
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* {DOMElement} A DOM text node.
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*/
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createTextNode: function(text) {
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var node;
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if (typeof text !== "string") {
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text = String(text);
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}
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if(this.xmldom) {
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node = this.xmldom.createTextNode(text);
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} else {
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node = document.createTextNode(text);
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}
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return node;
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},
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277
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278
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/**
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* APIMethod: getElementsByTagNameNS
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* Get a list of elements on a node given the namespace URI and local name.
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* To return all nodes in a given namespace, use '*' for the name
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* argument. To return all nodes of a given (local) name, regardless
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* of namespace, use '*' for the uri argument.
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*
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285
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* Parameters:
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* node - {Element} Node on which to search for other nodes.
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* uri - {String} Namespace URI.
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* name - {String} Local name of the tag (without the prefix).
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289
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*
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290
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* Returns:
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* {NodeList} A node list or array of elements.
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292
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*/
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getElementsByTagNameNS: function(node, uri, name) {
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var elements = [];
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if(node.getElementsByTagNameNS) {
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elements = node.getElementsByTagNameNS(uri, name);
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} else {
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// brute force method
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299
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var allNodes = node.getElementsByTagName("*");
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var potentialNode, fullName;
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for(var i=0, len=allNodes.length; i<len; ++i) {
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potentialNode = allNodes[i];
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fullName = (potentialNode.prefix) ?
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(potentialNode.prefix + ":" + name) : name;
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if((name == "*") || (fullName == potentialNode.nodeName)) {
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if((uri == "*") || (uri == potentialNode.namespaceURI)) {
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elements.push(potentialNode);
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}
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309
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}
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310
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}
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311
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}
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return elements;
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313
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},
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314
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315
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/**
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316
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* APIMethod: getAttributeNodeNS
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317
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* Get an attribute node given the namespace URI and local name.
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318
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*
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319
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* Parameters:
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320
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* node - {Element} Node on which to search for attribute nodes.
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321
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* uri - {String} Namespace URI.
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322
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* name - {String} Local name of the attribute (without the prefix).
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323
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*
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324
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* Returns:
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325
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* {DOMElement} An attribute node or null if none found.
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326
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*/
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327
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getAttributeNodeNS: function(node, uri, name) {
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328
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var attributeNode = null;
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329
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if(node.getAttributeNodeNS) {
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330
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attributeNode = node.getAttributeNodeNS(uri, name);
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331
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} else {
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332
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var attributes = node.attributes;
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333
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var potentialNode, fullName;
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334
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for(var i=0, len=attributes.length; i<len; ++i) {
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335
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potentialNode = attributes[i];
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336
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if(potentialNode.namespaceURI == uri) {
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337
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fullName = (potentialNode.prefix) ?
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338
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(potentialNode.prefix + ":" + name) : name;
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339
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if(fullName == potentialNode.nodeName) {
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340
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attributeNode = potentialNode;
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341
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break;
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|
342
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}
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|
343
|
}
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|
344
|
}
|
|
345
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}
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346
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return attributeNode;
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|
347
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},
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|
348
|
|
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349
|
/**
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350
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* APIMethod: getAttributeNS
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351
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* Get an attribute value given the namespace URI and local name.
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|
352
|
*
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|
353
|
* Parameters:
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354
|
* node - {Element} Node on which to search for an attribute.
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355
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* uri - {String} Namespace URI.
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356
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* name - {String} Local name of the attribute (without the prefix).
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|
357
|
*
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|
358
|
* Returns:
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|
359
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* {String} An attribute value or and empty string if none found.
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|
360
|
*/
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|
361
|
getAttributeNS: function(node, uri, name) {
|
|
362
|
var attributeValue = "";
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|
363
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if(node.getAttributeNS) {
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364
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attributeValue = node.getAttributeNS(uri, name) || "";
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365
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} else {
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366
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var attributeNode = this.getAttributeNodeNS(node, uri, name);
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367
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if(attributeNode) {
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368
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attributeValue = attributeNode.nodeValue;
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369
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}
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370
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}
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371
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return attributeValue;
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372
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},
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|
373
|
|
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374
|
/**
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375
|
* APIMethod: getChildValue
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|
376
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* Get the textual value of the node if it exists, or return an
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377
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* optional default string. Returns an empty string if no first child
|
|
378
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* exists and no default value is supplied.
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|
379
|
*
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|
380
|
* Parameters:
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|
381
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* node - {DOMElement} The element used to look for a first child value.
|
|
382
|
* def - {String} Optional string to return in the event that no
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|
383
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* first child value exists.
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|
384
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*
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|
385
|
* Returns:
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|
386
|
* {String} The value of the first child of the given node.
|
|
387
|
*/
|
|
388
|
getChildValue: function(node, def) {
|
|
389
|
var value = def || "";
|
|
390
|
if(node) {
|
|
391
|
for(var child=node.firstChild; child; child=child.nextSibling) {
|
|
392
|
switch(child.nodeType) {
|
|
393
|
case 3: // text node
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|
394
|
case 4: // cdata section
|
|
395
|
value += child.nodeValue;
|
|
396
|
}
|
|
397
|
}
|
|
398
|
}
|
|
399
|
return value;
|
|
400
|
},
|
|
401
|
|
|
402
|
/**
|
|
403
|
* APIMethod: isSimpleContent
|
|
404
|
* Test if the given node has only simple content (i.e. no child element
|
|
405
|
* nodes).
|
|
406
|
*
|
|
407
|
* Parameters:
|
|
408
|
* node - {DOMElement} An element node.
|
|
409
|
*
|
|
410
|
* Returns:
|
|
411
|
* {Boolean} The node has no child element nodes (nodes of type 1).
|
|
412
|
*/
|
|
413
|
isSimpleContent: function(node) {
|
|
414
|
var simple = true;
|
|
415
|
for(var child=node.firstChild; child; child=child.nextSibling) {
|
|
416
|
if(child.nodeType === 1) {
|
|
417
|
simple = false;
|
|
418
|
break;
|
|
419
|
}
|
|
420
|
}
|
|
421
|
return simple;
|
|
422
|
},
|
|
423
|
|
|
424
|
/**
|
|
425
|
* APIMethod: contentType
|
|
426
|
* Determine the content type for a given node.
|
|
427
|
*
|
|
428
|
* Parameters:
|
|
429
|
* node - {DOMElement}
|
|
430
|
*
|
|
431
|
* Returns:
|
|
432
|
* {Integer} One of OpenLayers.Format.XML.CONTENT_TYPE.{EMPTY,SIMPLE,COMPLEX,MIXED}
|
|
433
|
* if the node has no, simple, complex, or mixed content.
|
|
434
|
*/
|
|
435
|
contentType: function(node) {
|
|
436
|
var simple = false,
|
|
437
|
complex = false;
|
|
438
|
|
|
439
|
var type = OpenLayers.Format.XML.CONTENT_TYPE.EMPTY;
|
|
440
|
|
|
441
|
for(var child=node.firstChild; child; child=child.nextSibling) {
|
|
442
|
switch(child.nodeType) {
|
|
443
|
case 1: // element
|
|
444
|
complex = true;
|
|
445
|
break;
|
|
446
|
case 8: // comment
|
|
447
|
break;
|
|
448
|
default:
|
|
449
|
simple = true;
|
|
450
|
}
|
|
451
|
if(complex && simple) {
|
|
452
|
break;
|
|
453
|
}
|
|
454
|
}
|
|
455
|
|
|
456
|
if(complex && simple) {
|
|
457
|
type = OpenLayers.Format.XML.CONTENT_TYPE.MIXED;
|
|
458
|
} else if(complex) {
|
|
459
|
return OpenLayers.Format.XML.CONTENT_TYPE.COMPLEX;
|
|
460
|
} else if(simple) {
|
|
461
|
return OpenLayers.Format.XML.CONTENT_TYPE.SIMPLE;
|
|
462
|
}
|
|
463
|
return type;
|
|
464
|
},
|
|
465
|
|
|
466
|
/**
|
|
467
|
* APIMethod: hasAttributeNS
|
|
468
|
* Determine whether a node has a particular attribute matching the given
|
|
469
|
* name and namespace.
|
|
470
|
*
|
|
471
|
* Parameters:
|
|
472
|
* node - {Element} Node on which to search for an attribute.
|
|
473
|
* uri - {String} Namespace URI.
|
|
474
|
* name - {String} Local name of the attribute (without the prefix).
|
|
475
|
*
|
|
476
|
* Returns:
|
|
477
|
* {Boolean} The node has an attribute matching the name and namespace.
|
|
478
|
*/
|
|
479
|
hasAttributeNS: function(node, uri, name) {
|
|
480
|
var found = false;
|
|
481
|
if(node.hasAttributeNS) {
|
|
482
|
found = node.hasAttributeNS(uri, name);
|
|
483
|
} else {
|
|
484
|
found = !!this.getAttributeNodeNS(node, uri, name);
|
|
485
|
}
|
|
486
|
return found;
|
|
487
|
},
|
|
488
|
|
|
489
|
/**
|
|
490
|
* APIMethod: setAttributeNS
|
|
491
|
* Adds a new attribute or changes the value of an attribute with the given
|
|
492
|
* namespace and name.
|
|
493
|
*
|
|
494
|
* Parameters:
|
|
495
|
* node - {Element} Element node on which to set the attribute.
|
|
496
|
* uri - {String} Namespace URI for the attribute.
|
|
497
|
* name - {String} Qualified name (prefix:localname) for the attribute.
|
|
498
|
* value - {String} Attribute value.
|
|
499
|
*/
|
|
500
|
setAttributeNS: function(node, uri, name, value) {
|
|
501
|
if(node.setAttributeNS) {
|
|
502
|
node.setAttributeNS(uri, name, value);
|
|
503
|
} else {
|
|
504
|
if(this.xmldom) {
|
|
505
|
if(uri) {
|
|
506
|
var attribute = node.ownerDocument.createNode(
|
|
507
|
2, name, uri
|
|
508
|
);
|
|
509
|
attribute.nodeValue = value;
|
|
510
|
node.setAttributeNode(attribute);
|
|
511
|
} else {
|
|
512
|
node.setAttribute(name, value);
|
|
513
|
}
|
|
514
|
} else {
|
|
515
|
throw "setAttributeNS not implemented";
|
|
516
|
}
|
|
517
|
}
|
|
518
|
},
|
|
519
|
|
|
520
|
/**
|
|
521
|
* Method: createElementNSPlus
|
|
522
|
* Shorthand for creating namespaced elements with optional attributes and
|
|
523
|
* child text nodes.
|
|
524
|
*
|
|
525
|
* Parameters:
|
|
526
|
* name - {String} The qualified node name.
|
|
527
|
* options - {Object} Optional object for node configuration.
|
|
528
|
*
|
|
529
|
* Valid options:
|
|
530
|
* uri - {String} Optional namespace uri for the element - supply a prefix
|
|
531
|
* instead if the namespace uri is a property of the format's namespace
|
|
532
|
* object.
|
|
533
|
* attributes - {Object} Optional attributes to be set using the
|
|
534
|
* <setAttributes> method.
|
|
535
|
* value - {String} Optional text to be appended as a text node.
|
|
536
|
*
|
|
537
|
* Returns:
|
|
538
|
* {Element} An element node.
|
|
539
|
*/
|
|
540
|
createElementNSPlus: function(name, options) {
|
|
541
|
options = options || {};
|
|
542
|
// order of prefix preference
|
|
543
|
// 1. in the uri option
|
|
544
|
// 2. in the prefix option
|
|
545
|
// 3. in the qualified name
|
|
546
|
// 4. from the defaultPrefix
|
|
547
|
var uri = options.uri || this.namespaces[options.prefix];
|
|
548
|
if(!uri) {
|
|
549
|
var loc = name.indexOf(":");
|
|
550
|
uri = this.namespaces[name.substring(0, loc)];
|
|
551
|
}
|
|
552
|
if(!uri) {
|
|
553
|
uri = this.namespaces[this.defaultPrefix];
|
|
554
|
}
|
|
555
|
var node = this.createElementNS(uri, name);
|
|
556
|
if(options.attributes) {
|
|
557
|
this.setAttributes(node, options.attributes);
|
|
558
|
}
|
|
559
|
var value = options.value;
|
|
560
|
if(value != null) {
|
|
561
|
node.appendChild(this.createTextNode(value));
|
|
562
|
}
|
|
563
|
return node;
|
|
564
|
},
|
|
565
|
|
|
566
|
/**
|
|
567
|
* Method: setAttributes
|
|
568
|
* Set multiple attributes given key value pairs from an object.
|
|
569
|
*
|
|
570
|
* Parameters:
|
|
571
|
* node - {Element} An element node.
|
|
572
|
* obj - {Object || Array} An object whose properties represent attribute
|
|
573
|
* names and values represent attribute values. If an attribute name
|
|
574
|
* is a qualified name ("prefix:local"), the prefix will be looked up
|
|
575
|
* in the parsers {namespaces} object. If the prefix is found,
|
|
576
|
* setAttributeNS will be used instead of setAttribute.
|
|
577
|
*/
|
|
578
|
setAttributes: function(node, obj) {
|
|
579
|
var value, uri;
|
|
580
|
for(var name in obj) {
|
|
581
|
if(obj[name] != null && obj[name].toString) {
|
|
582
|
value = obj[name].toString();
|
|
583
|
// check for qualified attribute name ("prefix:local")
|
|
584
|
uri = this.namespaces[name.substring(0, name.indexOf(":"))] || null;
|
|
585
|
this.setAttributeNS(node, uri, name, value);
|
|
586
|
}
|
|
587
|
}
|
|
588
|
},
|
|
589
|
|
|
590
|
/**
|
|
591
|
* Method: readNode
|
|
592
|
* Shorthand for applying one of the named readers given the node
|
|
593
|
* namespace and local name. Readers take two args (node, obj) and
|
|
594
|
* generally extend or modify the second.
|
|
595
|
*
|
|
596
|
* Parameters:
|
|
597
|
* node - {DOMElement} The node to be read (required).
|
|
598
|
* obj - {Object} The object to be modified (optional).
|
|
599
|
*
|
|
600
|
* Returns:
|
|
601
|
* {Object} The input object, modified (or a new one if none was provided).
|
|
602
|
*/
|
|
603
|
readNode: function(node, obj) {
|
|
604
|
if(!obj) {
|
|
605
|
obj = {};
|
|
606
|
}
|
|
607
|
var group = this.readers[node.namespaceURI ? this.namespaceAlias[node.namespaceURI]: this.defaultPrefix];
|
|
608
|
if(group) {
|
|
609
|
var local = node.localName || node.nodeName.split(":").pop();
|
|
610
|
var reader = group[local] || group["*"];
|
|
611
|
if(reader) {
|
|
612
|
reader.apply(this, [node, obj]);
|
|
613
|
}
|
|
614
|
}
|
|
615
|
return obj;
|
|
616
|
},
|
|
617
|
|
|
618
|
/**
|
|
619
|
* Method: readChildNodes
|
|
620
|
* Shorthand for applying the named readers to all children of a node.
|
|
621
|
* For each child of type 1 (element), <readSelf> is called.
|
|
622
|
*
|
|
623
|
* Parameters:
|
|
624
|
* node - {DOMElement} The node to be read (required).
|
|
625
|
* obj - {Object} The object to be modified (optional).
|
|
626
|
*
|
|
627
|
* Returns:
|
|
628
|
* {Object} The input object, modified.
|
|
629
|
*/
|
|
630
|
readChildNodes: function(node, obj) {
|
|
631
|
if(!obj) {
|
|
632
|
obj = {};
|
|
633
|
}
|
|
634
|
var children = node.childNodes;
|
|
635
|
var child;
|
|
636
|
for(var i=0, len=children.length; i<len; ++i) {
|
|
637
|
child = children[i];
|
|
638
|
if(child.nodeType == 1) {
|
|
639
|
this.readNode(child, obj);
|
|
640
|
}
|
|
641
|
}
|
|
642
|
return obj;
|
|
643
|
},
|
|
644
|
|
|
645
|
/**
|
|
646
|
* Method: writeNode
|
|
647
|
* Shorthand for applying one of the named writers and appending the
|
|
648
|
* results to a node. If a qualified name is not provided for the
|
|
649
|
* second argument (and a local name is used instead), the namespace
|
|
650
|
* of the parent node will be assumed.
|
|
651
|
*
|
|
652
|
* Parameters:
|
|
653
|
* name - {String} The name of a node to generate. If a qualified name
|
|
654
|
* (e.g. "pre:Name") is used, the namespace prefix is assumed to be
|
|
655
|
* in the <writers> group. If a local name is used (e.g. "Name") then
|
|
656
|
* the namespace of the parent is assumed. If a local name is used
|
|
657
|
* and no parent is supplied, then the default namespace is assumed.
|
|
658
|
* obj - {Object} Structure containing data for the writer.
|
|
659
|
* parent - {DOMElement} Result will be appended to this node. If no parent
|
|
660
|
* is supplied, the node will not be appended to anything.
|
|
661
|
*
|
|
662
|
* Returns:
|
|
663
|
* {DOMElement} The child node.
|
|
664
|
*/
|
|
665
|
writeNode: function(name, obj, parent) {
|
|
666
|
var prefix, local;
|
|
667
|
var split = name.indexOf(":");
|
|
668
|
if(split > 0) {
|
|
669
|
prefix = name.substring(0, split);
|
|
670
|
local = name.substring(split + 1);
|
|
671
|
} else {
|
|
672
|
if(parent) {
|
|
673
|
prefix = this.namespaceAlias[parent.namespaceURI];
|
|
674
|
} else {
|
|
675
|
prefix = this.defaultPrefix;
|
|
676
|
}
|
|
677
|
local = name;
|
|
678
|
}
|
|
679
|
var child = this.writers[prefix][local].apply(this, [obj]);
|
|
680
|
if(parent) {
|
|
681
|
parent.appendChild(child);
|
|
682
|
}
|
|
683
|
return child;
|
|
684
|
},
|
|
685
|
|
|
686
|
/**
|
|
687
|
* APIMethod: getChildEl
|
|
688
|
* Get the first child element. Optionally only return the first child
|
|
689
|
* if it matches the given name and namespace URI.
|
|
690
|
*
|
|
691
|
* Parameters:
|
|
692
|
* node - {DOMElement} The parent node.
|
|
693
|
* name - {String} Optional node name (local) to search for.
|
|
694
|
* uri - {String} Optional namespace URI to search for.
|
|
695
|
*
|
|
696
|
* Returns:
|
|
697
|
* {DOMElement} The first child. Returns null if no element is found, if
|
|
698
|
* something significant besides an element is found, or if the element
|
|
699
|
* found does not match the optional name and uri.
|
|
700
|
*/
|
|
701
|
getChildEl: function(node, name, uri) {
|
|
702
|
return node && this.getThisOrNextEl(node.firstChild, name, uri);
|
|
703
|
},
|
|
704
|
|
|
705
|
/**
|
|
706
|
* APIMethod: getNextEl
|
|
707
|
* Get the next sibling element. Optionally get the first sibling only
|
|
708
|
* if it matches the given local name and namespace URI.
|
|
709
|
*
|
|
710
|
* Parameters:
|
|
711
|
* node - {DOMElement} The node.
|
|
712
|
* name - {String} Optional local name of the sibling to search for.
|
|
713
|
* uri - {String} Optional namespace URI of the sibling to search for.
|
|
714
|
*
|
|
715
|
* Returns:
|
|
716
|
* {DOMElement} The next sibling element. Returns null if no element is
|
|
717
|
* found, something significant besides an element is found, or the
|
|
718
|
* found element does not match the optional name and uri.
|
|
719
|
*/
|
|
720
|
getNextEl: function(node, name, uri) {
|
|
721
|
return node && this.getThisOrNextEl(node.nextSibling, name, uri);
|
|
722
|
},
|
|
723
|
|
|
724
|
/**
|
|
725
|
* Method: getThisOrNextEl
|
|
726
|
* Return this node or the next element node. Optionally get the first
|
|
727
|
* sibling with the given local name or namespace URI.
|
|
728
|
*
|
|
729
|
* Parameters:
|
|
730
|
* node - {DOMElement} The node.
|
|
731
|
* name - {String} Optional local name of the sibling to search for.
|
|
732
|
* uri - {String} Optional namespace URI of the sibling to search for.
|
|
733
|
*
|
|
734
|
* Returns:
|
|
735
|
* {DOMElement} The next sibling element. Returns null if no element is
|
|
736
|
* found, something significant besides an element is found, or the
|
|
737
|
* found element does not match the query.
|
|
738
|
*/
|
|
739
|
getThisOrNextEl: function(node, name, uri) {
|
|
740
|
outer: for(var sibling=node; sibling; sibling=sibling.nextSibling) {
|
|
741
|
switch(sibling.nodeType) {
|
|
742
|
case 1: // Element
|
|
743
|
if((!name || name === (sibling.localName || sibling.nodeName.split(":").pop())) &&
|
|
744
|
(!uri || uri === sibling.namespaceURI)) {
|
|
745
|
// matches
|
|
746
|
break outer;
|
|
747
|
}
|
|
748
|
sibling = null;
|
|
749
|
break outer;
|
|
750
|
case 3: // Text
|
|
751
|
if(/^\s*$/.test(sibling.nodeValue)) {
|
|
752
|
break;
|
|
753
|
}
|
|
754
|
case 4: // CDATA
|
|
755
|
case 6: // ENTITY_NODE
|
|
756
|
case 12: // NOTATION_NODE
|
|
757
|
case 10: // DOCUMENT_TYPE_NODE
|
|
758
|
case 11: // DOCUMENT_FRAGMENT_NODE
|
|
759
|
sibling = null;
|
|
760
|
break outer;
|
|
761
|
} // ignore comments and processing instructions
|
|
762
|
}
|
|
763
|
return sibling || null;
|
|
764
|
},
|
|
765
|
|
|
766
|
/**
|
|
767
|
* APIMethod: lookupNamespaceURI
|
|
768
|
* Takes a prefix and returns the namespace URI associated with it on the given
|
|
769
|
* node if found (and null if not). Supplying null for the prefix will
|
|
770
|
* return the default namespace.
|
|
771
|
*
|
|
772
|
* For browsers that support it, this calls the native lookupNamesapceURI
|
|
773
|
* function. In other browsers, this is an implementation of
|
|
774
|
* http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
|
|
775
|
*
|
|
776
|
* For browsers that don't support the attribute.ownerElement property, this
|
|
777
|
* method cannot be called on attribute nodes.
|
|
778
|
*
|
|
779
|
* Parameters:
|
|
780
|
* node - {DOMElement} The node from which to start looking.
|
|
781
|
* prefix - {String} The prefix to lookup or null to lookup the default namespace.
|
|
782
|
*
|
|
783
|
* Returns:
|
|
784
|
* {String} The namespace URI for the given prefix. Returns null if the prefix
|
|
785
|
* cannot be found or the node is the wrong type.
|
|
786
|
*/
|
|
787
|
lookupNamespaceURI: function(node, prefix) {
|
|
788
|
var uri = null;
|
|
789
|
if(node) {
|
|
790
|
if(node.lookupNamespaceURI) {
|
|
791
|
uri = node.lookupNamespaceURI(prefix);
|
|
792
|
} else {
|
|
793
|
outer: switch(node.nodeType) {
|
|
794
|
case 1: // ELEMENT_NODE
|
|
795
|
if(node.namespaceURI !== null && node.prefix === prefix) {
|
|
796
|
uri = node.namespaceURI;
|
|
797
|
break outer;
|
|
798
|
}
|
|
799
|
var len = node.attributes.length;
|
|
800
|
if(len) {
|
|
801
|
var attr;
|
|
802
|
for(var i=0; i<len; ++i) {
|
|
803
|
attr = node.attributes[i];
|
|
804
|
if(attr.prefix === "xmlns" && attr.name === "xmlns:" + prefix) {
|
|
805
|
uri = attr.value || null;
|
|
806
|
break outer;
|
|
807
|
} else if(attr.name === "xmlns" && prefix === null) {
|
|
808
|
uri = attr.value || null;
|
|
809
|
break outer;
|
|
810
|
}
|
|
811
|
}
|
|
812
|
}
|
|
813
|
uri = this.lookupNamespaceURI(node.parentNode, prefix);
|
|
814
|
break outer;
|
|
815
|
case 2: // ATTRIBUTE_NODE
|
|
816
|
uri = this.lookupNamespaceURI(node.ownerElement, prefix);
|
|
817
|
break outer;
|
|
818
|
case 9: // DOCUMENT_NODE
|
|
819
|
uri = this.lookupNamespaceURI(node.documentElement, prefix);
|
|
820
|
break outer;
|
|
821
|
case 6: // ENTITY_NODE
|
|
822
|
case 12: // NOTATION_NODE
|
|
823
|
case 10: // DOCUMENT_TYPE_NODE
|
|
824
|
case 11: // DOCUMENT_FRAGMENT_NODE
|
|
825
|
break outer;
|
|
826
|
default:
|
|
827
|
// TEXT_NODE (3), CDATA_SECTION_NODE (4), ENTITY_REFERENCE_NODE (5),
|
|
828
|
// PROCESSING_INSTRUCTION_NODE (7), COMMENT_NODE (8)
|
|
829
|
uri = this.lookupNamespaceURI(node.parentNode, prefix);
|
|
830
|
break outer;
|
|
831
|
}
|
|
832
|
}
|
|
833
|
}
|
|
834
|
return uri;
|
|
835
|
},
|
|
836
|
|
|
837
|
/**
|
|
838
|
* Method: getXMLDoc
|
|
839
|
* Get an XML document for nodes that are not supported in HTML (e.g.
|
|
840
|
* createCDATASection). On IE, this will either return an existing or
|
|
841
|
* create a new <xmldom> on the instance. On other browsers, this will
|
|
842
|
* either return an existing or create a new shared document (see
|
|
843
|
* <OpenLayers.Format.XML.document>).
|
|
844
|
*
|
|
845
|
* Returns:
|
|
846
|
* {XMLDocument}
|
|
847
|
*/
|
|
848
|
getXMLDoc: function() {
|
|
849
|
if (!OpenLayers.Format.XML.document && !this.xmldom) {
|
|
850
|
if (document.implementation && document.implementation.createDocument) {
|
|
851
|
OpenLayers.Format.XML.document =
|
|
852
|
document.implementation.createDocument("", "", null);
|
|
853
|
} else if (!this.xmldom && window.ActiveXObject) {
|
|
854
|
this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
|
|
855
|
}
|
|
856
|
}
|
|
857
|
return OpenLayers.Format.XML.document || this.xmldom;
|
|
858
|
},
|
|
859
|
|
|
860
|
CLASS_NAME: "OpenLayers.Format.XML"
|
|
861
|
|
|
862
|
});
|
|
863
|
|
|
864
|
OpenLayers.Format.XML.CONTENT_TYPE = {EMPTY: 0, SIMPLE: 1, COMPLEX: 2, MIXED: 3};
|
|
865
|
|
|
866
|
/**
|
|
867
|
* APIFunction: OpenLayers.Format.XML.lookupNamespaceURI
|
|
868
|
* Takes a prefix and returns the namespace URI associated with it on the given
|
|
869
|
* node if found (and null if not). Supplying null for the prefix will
|
|
870
|
* return the default namespace.
|
|
871
|
*
|
|
872
|
* For browsers that support it, this calls the native lookupNamesapceURI
|
|
873
|
* function. In other browsers, this is an implementation of
|
|
874
|
* http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
|
|
875
|
*
|
|
876
|
* For browsers that don't support the attribute.ownerElement property, this
|
|
877
|
* method cannot be called on attribute nodes.
|
|
878
|
*
|
|
879
|
* Parameters:
|
|
880
|
* node - {DOMElement} The node from which to start looking.
|
|
881
|
* prefix - {String} The prefix to lookup or null to lookup the default namespace.
|
|
882
|
*
|
|
883
|
* Returns:
|
|
884
|
* {String} The namespace URI for the given prefix. Returns null if the prefix
|
|
885
|
* cannot be found or the node is the wrong type.
|
|
886
|
*/
|
|
887
|
OpenLayers.Format.XML.lookupNamespaceURI = OpenLayers.Function.bind(
|
|
888
|
OpenLayers.Format.XML.prototype.lookupNamespaceURI,
|
|
889
|
OpenLayers.Format.XML.prototype
|
|
890
|
);
|
|
891
|
|
|
892
|
/**
|
|
893
|
* Property: OpenLayers.Format.XML.document
|
|
894
|
* {XMLDocument} XML document to reuse for creating non-HTML compliant nodes,
|
|
895
|
* like document.createCDATASection.
|
|
896
|
*/
|
|
897
|
OpenLayers.Format.XML.document = null;
|