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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojox/wire/ml/util.js
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
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New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
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+if(!dojo._hasResource["dojox.wire.ml.util"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.wire.ml.util"] = true;
+dojo.provide("dojox.wire.ml.util");
+
+dojo.require("dojox.data.dom");
+dojo.require("dojox.wire.Wire");
+
+dojox.wire.ml._getValue = function(/*String*/source, /*Array*/args){
+ // summary:
+ // Return a value
+ // description:
+ // This method obtains an object by an ID of a widget or an DOM
+ // element.
+ // If 'source' specifies a dotted notation to its property, a Wire is
+ // used to get the object property.
+ // If 'source' starts with "arguments", 'args' is used as a root
+ // object for the Wire.
+ // source:
+ // A string to specify an object and its property
+ // args:
+ // An optional arguments array
+ // returns:
+ // A value
+ if(!source){
+ return undefined; //undefined
+ }
+ var property = undefined;
+ if(args && source.length >= 9 && source.substring(0, 9) == "arguments"){
+ property = source.substring(9);
+ return new dojox.wire.Wire({property: property}).getValue(args);
+ }
+ var i = source.indexOf('.');
+ if(i >= 0){
+ property = source.substring(i + 1);
+ source = source.substring(0, i);
+ }
+ var object = (dijit.byId(source) || dojo.byId(source) || dojo.getObject(source));
+ if(!object){
+ return undefined; //undefined
+ }
+ if(!property){
+ return object; //Object
+ }else{
+ return new dojox.wire.Wire({object: object, property: property}).getValue(); //anything
+ }
+};
+
+dojox.wire.ml._setValue = function(/*String*/target, /*anything*/value){
+ // summary:
+ // Store a value
+ // description:
+ // This method stores a value by an ID of a widget or an DOM
+ // element with a dotted notation to its property, using a Wire.
+ // target:
+ // A string to specify an object and its property
+ // value:
+ // A value
+ if(!target){
+ return; //undefined
+ }
+ var i = target.indexOf('.');
+ if(i < 0){
+ return; //undefined
+ }
+ var object = this._getValue(target.substring(0, i));
+ if(!object){
+ return; //undefined
+ }
+ var property = target.substring(i + 1);
+ new dojox.wire.Wire({object: object, property: property}).setValue(value);
+};
+
+dojo.declare("dojox.wire.ml.XmlElement", null, {
+ // summary:
+ // An object wrapping an XML element
+ // description:
+ // This class represents an XML element.
+
+ constructor: function(/*Element||String*/element){
+ // summary:
+ // Initialize with an XML element or a tag name
+ // element:
+ // An XML element or a tag name
+ if(dojo.isString(element)){
+ element = this._getDocument().createElement(element);
+ }
+ this.element = element;
+ },
+ getPropertyValue: function(/*String*/property){
+ // summary:
+ // Return a property value
+ // description:
+ // If 'property' starts with '@', the attribute value is returned.
+ // If 'property' specifies "text()", the value of the first child
+ // text is returned.
+ // Otherwise, child elements of the tag name specified with
+ // 'property' are returned.
+ // property:
+ // A property name
+ // returns:
+ // A property value
+ var value = undefined;
+ if(!this.element){
+ return value; //undefined
+ }
+ if(!property){
+ return value; //undefined
+ }
+
+ if(property.charAt(0) == '@'){
+ var attribute = property.substring(1);
+ value = this.element.getAttribute(attribute);
+ }else if(property == "text()"){
+ var text = this.element.firstChild;
+ if(text){
+ value = text.nodeValue;
+ }
+ }else{ // child elements
+ var elements = [];
+ for(var i = 0; i < this.element.childNodes.length; i++){
+ var child = this.element.childNodes[i];
+ if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == property){
+ elements.push(new dojox.wire.ml.XmlElement(child));
+ }
+ }
+ if(elements.length > 0){
+ if(elements.length === 1){
+ value = elements[0];
+ }else{
+ value = elements;
+ }
+ }
+ }
+ return value; //String||Array||XmlElement
+ },
+
+ setPropertyValue: function(/*String*/property, /*String||Array||XmlElement*/value){
+ // summary:
+ // Store a property value
+ // description:
+ // If 'property' starts with '@', 'value' is set to the attribute.
+ // If 'property' specifies "text()", 'value' is set as the first
+ // child text.
+ // If 'value' is a string, a child element of the tag name
+ // specified with 'property' is created and 'value' is set as
+ // the first child text of the child element.
+ // Otherwise, 'value' is set to as child elements.
+ // property:
+ // A property name
+ // value:
+ // A property value
+ if(!this.element){
+ return; //undefined
+ }
+ if(!property){
+ return; //undefined
+ }
+
+ if(property.charAt(0) == '@'){
+ var attribute = property.substring(1);
+ if(value){
+ this.element.setAttribute(attribute, value);
+ }else{
+ this.element.removeAttribute(attribute);
+ }
+ }else if(property == "text()"){
+ while(this.element.firstChild){
+ this.element.removeChild(this.element.firstChild);
+ }
+ if(value){
+ var text = this._getDocument().createTextNode(value);
+ this.element.appendChild(text);
+ }
+ }else{ // child elements
+ var nextChild = null;
+ for(var i = this.element.childNodes.length - 1; i >= 0; i--){
+ var child = this.element.childNodes[i];
+ if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == property){
+ if(!nextChild){
+ nextChild = child.nextSibling;
+ }
+ this.element.removeChild(child);
+ }
+ }
+ if(value){
+ if(dojo.isArray(value)){
+ for(var i in value){
+ var e = value[i];
+ if(e.element){
+ this.element.insertBefore(e.element, nextChild);
+ }
+ }
+ }else if(value instanceof dojox.wire.ml.XmlElement){
+ if(value.element){
+ this.element.insertBefore(value.element, nextChild);
+ }
+ }else{ // assume string
+ var child = this._getDocument().createElement(property);
+ var text = this._getDocument().createTextNode(value);
+ child.appendChild(text);
+ this.element.insertBefore(child, nextChild);
+ }
+ }
+ }
+ },
+
+ toString: function(){
+ // summary:
+ // Return a value of the first text child of the element
+ // description:
+ // A value of the first text child of the element is returned.
+ // returns:
+ // A value of the first text child of the element
+ var s = "";
+ if(this.element){
+ var text = this.element.firstChild;
+ if(text){
+ s = text.nodeValue;
+ }
+ }
+ return s; //String
+ },
+
+ toObject: function(){
+ // summary:
+ // Return an object representation of the element
+ // description:
+ // An object with properties for child elements, attributes and
+ // text is returned.
+ // returns:
+ // An object representation of the element
+ if(!this.element){
+ return null; //null
+ }
+ var text = "";
+ var obj = {};
+ var elements = 0;
+ for(var i = 0; i < this.element.childNodes.length; i++){
+ var child = this.element.childNodes[i];
+ if(child.nodeType === 1 /* ELEMENT_NODE */){
+ elements++;
+ var o = new dojox.wire.ml.XmlElement(child).toObject();
+ var name = child.nodeName;
+ var p = obj[name];
+ if(!p){
+ obj[name] = o;
+ }else if(dojo.isArray(p)){
+ p.push(o);
+ }else{
+ obj[name] = [p, o]; // make them array
+ }
+ }else if(child.nodeType === 3 /* TEXT_NODE */ ||
+ child.nodeType === 4 /* CDATA_SECTION_NODE */){
+ text += child.nodeValue;
+ }
+ }
+ var attributes = 0;
+ if(this.element.nodeType === 1 /* ELEMENT_NODE */){
+ attributes = this.element.attributes.length;
+ for(var i = 0; i < attributes; i++){
+ var attr = this.element.attributes[i];
+ obj["@" + attr.nodeName] = attr.nodeValue;
+ }
+ }
+ if(elements === 0){
+ if(attributes === 0){
+ // text only
+ return text; //String
+ }
+ // text with attributes
+ obj["text()"] = text;
+ }
+ // else ignore text
+ return obj; //Object
+ },
+
+ _getDocument: function(){
+ // summary:
+ // Return a DOM document
+ // description:
+ // If 'element' is specified, a DOM document of the element is
+ // returned.
+ // Otherwise, a DOM document is created.
+ // returns:
+ // A DOM document
+ if(this.element){
+ return (this.element.nodeType == 9 /* DOCUMENT_NODE */ ?
+ this.element : this.element.ownerDocument); //Document
+ }else{
+ return dojox.data.dom.createDocument(); //Document
+ }
+ }
+});
+
+}