+++ /dev/null
-if(!dojo._hasResource["dojox.wire.XmlWire"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource["dojox.wire.XmlWire"] = true;
-dojo.provide("dojox.wire.XmlWire");
-
-dojo.require("dojox.data.dom");
-dojo.require("dojox.wire.Wire");
-
-dojo.declare("dojox.wire.XmlWire", dojox.wire.Wire, {
- // summary:
- // A Wire for XML nodes or values (element, attribute and text)
- // description:
- // This class accesses XML nodes or value with a simplified XPath
- // specified to 'path' property.
- // The root object for this class must be an DOM document or element
- // node.
- // "@name" accesses to an attribute value of an element and "text()"
- // accesses to a text value of an element.
- // The hierarchy of the elements from the root node can be specified
- // with slash-separated list, such as "a/b/@c", which specifies
- // the value of an attribute named "c" of an element named "b" as
- // a child of another element named "a" of a child of the root node.
-
- _wireClass: "dojox.wire.XmlWire",
-
- constructor: function(/*Object*/args){
- // summary:
- // Initialize properties
- // description:
- // 'args' is just mixed in with no further processing.
- // args:
- // Arguments to initialize properties
- // path:
- // A simplified XPath to an attribute, a text or elements
- },
- _getValue: function(/*Node*/object){
- // summary:
- // Return an attribute value, a text value or an array of elements
- // description:
- // This method first uses a root node passed in 'object' argument
- // and 'path' property to identify an attribute, a text or
- // elements.
- // If 'path' starts with a slash (absolute), the first path
- // segment is ignored assuming it point to the root node.
- // (That is, "/a/b/@c" and "b/@c" against a root node access
- // the same attribute value, assuming the root node is an element
- // with a tag name, "a".)
- // object:
- // A root node
- // returns:
- // A value found, otherwise 'undefined'
- if(!object || !this.path){
- return object; //Node
- }
-
- var node = object;
- var path = this.path;
- if(path.charAt(0) == '/'){ // absolute
- // skip the first expression (supposed to select the top node)
- var i = path.indexOf('/', 1);
- path = path.substring(i + 1);
- }
- var list = path.split('/');
- var last = list.length - 1;
- for(var i = 0; i < last; i++){
- node = this._getChildNode(node, list[i]);
- if(!node){
- return undefined; //undefined
- }
- }
- var value = this._getNodeValue(node, list[last]);
- return value; //String||Array
- },
-
- _setValue: function(/*Node*/object, /*String*/value){
- // summary:
- // Set an attribute value or a child text value to an element
- // description:
- // This method first uses a root node passed in 'object' argument
- // and 'path' property to identify an attribute, a text or
- // elements.
- // If an intermediate element does not exist, it creates
- // an element of the tag name in the 'path' segment as a child
- // node of the current node.
- // Finally, 'value' argument is set to an attribute or a text
- // (a child node) of the leaf element.
- // object:
- // A root node
- // value:
- // A value to set
- if(!this.path){
- return object; //Node
- }
-
- var node = object;
- var doc = this._getDocument(node);
- var path = this.path;
- if(path.charAt(0) == '/'){ // absolute
- var i = path.indexOf('/', 1);
- if(!node){
- var name = path.substring(1, i);
- node = doc.createElement(name);
- object = node; // to be returned as a new object
- }
- // skip the first expression (supposed to select the top node)
- path = path.substring(i + 1);
- }else{
- if(!node){
- return undefined; //undefined
- }
- }
-
- var list = path.split('/');
- var last = list.length - 1;
- for(var i = 0; i < last; i++){
- var child = this._getChildNode(node, list[i]);
- if(!child){
- child = doc.createElement(list[i]);
- node.appendChild(child);
- }
- node = child;
- }
- this._setNodeValue(node, list[last], value);
- return object; //Node
- },
-
- _getNodeValue: function(/*Node*/node, /*String*/exp){
- // summary:
- // Return an attribute value, a text value or an array of elements
- // description:
- // If 'exp' starts with '@', an attribute value of the specified
- // attribute is returned.
- // If 'exp' is "text()", a child text value is returned.
- // Otherwise, an array of child elements, the tag name of which
- // match 'exp', is returned.
- // node:
- // A node
- // exp:
- // An expression for attribute, text or elements
- // returns:
- // A value found, otherwise 'undefined'
- var value = undefined;
- if(exp.charAt(0) == '@'){
- var attribute = exp.substring(1);
- value = node.getAttribute(attribute);
- }else if(exp == "text()"){
- var text = node.firstChild;
- if(text){
- value = text.nodeValue;
- }
- }else{ // assume elements
- value = [];
- for(var i = 0; i < node.childNodes.length; i++){
- var child = node.childNodes[i];
- if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == exp){
- value.push(child);
- }
- }
- }
- return value; //String||Array
- },
-
- _setNodeValue: function(/*Node*/node, /*String*/exp, /*String*/value){
- // summary:
- // Set an attribute value or a child text value to an element
- // description:
- // If 'exp' starts with '@', 'value' is set to the specified
- // attribute.
- // If 'exp' is "text()", 'value' is set to a child text.
- // node:
- // A node
- // exp:
- // An expression for attribute or text
- // value:
- // A value to set
- if(exp.charAt(0) == '@'){
- var attribute = exp.substring(1);
- if(value){
- node.setAttribute(attribute, value);
- }else{
- node.removeAttribute(attribute);
- }
- }else if(exp == "text()"){
- while(node.firstChild){
- node.removeChild(node.firstChild);
- }
- if(value){
- var text = this._getDocument(node).createTextNode(value);
- node.appendChild(text);
- }
- }
- // else not supported
- },
-
- _getChildNode: function(/*Node*/node, /*String*/name){
- // summary:
- // Return a child node
- // description:
- // A child element of the tag name specified with 'name' is
- // returned.
- // If 'name' ends with an array index, it is used to pick up
- // the corresponding element from multiple child elements.
- // node:
- // A parent node
- // name:
- // A tag name
- // returns:
- // A child node
- var index = 1;
- var i1 = name.indexOf('[');
- if(i1 >= 0){
- var i2 = name.indexOf(']');
- index = name.substring(i1 + 1, i2);
- name = name.substring(0, i1);
- }
- var count = 1;
- for(var i = 0; i < node.childNodes.length; i++){
- var child = node.childNodes[i];
- if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == name){
- if(count == index){
- return child; //Node
- }
- count++;
- }
- }
- return null; //null
- },
-
- _getDocument: function(/*Node*/node){
- // summary:
- // Return a DOM document
- // description:
- // If 'node' is specified, a DOM document of the node is returned.
- // Otherwise, a DOM document is created.
- // returns:
- // A DOM document
- if(node){
- return (node.nodeType == 9 /* DOCUMENT_NODE */ ? node : node.ownerDocument); //Document
- }else{
- return dojox.data.dom.createDocument(); //Document
- }
- }
-});
-
-}
projects / eow / blobdiff