--- /dev/null
+if(!dojo._hasResource["dojox.wire.DataWire"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.wire.DataWire"] = true;
+dojo.provide("dojox.wire.DataWire");
+
+dojo.require("dojox.wire.Wire");
+
+dojo.declare("dojox.wire.DataWire", dojox.wire.Wire, {
+ // summary:
+ // A Wire for item attributes of data stores
+ // description:
+ // This class accesses item attributes of data stores with a dotted
+ // notation of attribute names specified to 'attribute' property,
+ // using data APIs of a data store specified to 'dataStore' property.
+ // The root object for this class must be an item of the data store.
+ // Intermediate attribute names in the dotted notation specify
+ // attributes for child items, which are used for repeated calls to
+ // data APIs until reached to a descendant attribute.
+ // Attribute names may have an array index, such as "a[0]", to
+ // identify an array element of the attribute value.
+
+ _wireClass: "dojox.wire.DataWire",
+
+ constructor: function(/*Object*/args){
+ // summary:
+ // Initialize properties
+ // description:
+ // If 'dataStore' property is not specified, but 'parent' property
+ // is specified, 'dataStore' property is copied from the parent.
+ // args:
+ // Arguments to initialize properties
+ // dataStore:
+ // A data store
+ // attribute:
+ // A dotted notation to a descendant attribute
+ if(!this.dataStore && this.parent){
+ this.dataStore = this.parent.dataStore;
+ }
+ },
+ _getValue: function(/*Object*/object){
+ // summary:
+ // Return an attribute value of an item
+ // description:
+ // This method uses a root item passed in 'object' argument and
+ // 'attribute' property to call getValue() method of
+ // 'dataStore'.
+ // If an attribute name have an array suffix ("[]"), getValues()
+ // method is called, instead.
+ // If an index is specified in the array suffix, an array element
+ // for the index is returned, instead of the array itself.
+ // object:
+ // A root item
+ // returns:
+ // A value found, otherwise 'undefined'
+ if(!object || !this.attribute || !this.dataStore){
+ return object; //Object
+ }
+
+ var value = object;
+ var list = this.attribute.split('.');
+ for(var i in list){
+ value = this._getAttributeValue(value, list[i]);
+ if(!value){
+ return undefined; //undefined
+ }
+ }
+ return value; //anything
+ },
+
+ _setValue: function(/*Object*/object, /*anything*/value){
+ // summary:
+ // Set an attribute value to an item
+ // description:
+ // This method uses a root item passed in 'object' argument and
+ // 'attribute' property to identify an item.
+ // Then, setValue() method of 'dataStore' is called with a leaf
+ // attribute name and 'value' argument.
+ // If an attribute name have an array suffix ("[]"), setValues()
+ // method is called, instead.
+ // If an index is specified in the array suffix, an array element
+ // for the index is set to 'value', instead of the array itself.
+ // object:
+ // A root item
+ // value:
+ // A value to set
+ // returns:
+ // 'object', or 'undefined' for invalid attribute
+ if(!object || !this.attribute || !this.dataStore){
+ return object; //Object
+ }
+
+ var item = object;
+ var list = this.attribute.split('.');
+ var last = list.length - 1;
+ for(var i = 0; i < last; i++){
+ item = this._getAttributeValue(item, list[i]);
+ if(!item){
+ return undefined; //undefined
+ }
+ }
+ this._setAttributeValue(item, list[last], value);
+ return object; //Object
+ },
+
+ _getAttributeValue: function(/*Object*/item, /*String*/attribute){
+ // summary:
+ // Return an attribute value of an item
+ // description:
+ // This method uses an item passed in 'item' argument and
+ // 'attribute' argument to call getValue() method of 'dataStore'.
+ // If an attribute name have an array suffix ("[]"), getValues()
+ // method is called, instead.
+ // If an index is specified in the array suffix, an array element
+ // for the index is returned, instead of the array itself.
+ // item:
+ // An item
+ // attribute
+ // An attribute name
+ // returns:
+ // A value found, otherwise 'undefined'
+ var value = undefined;
+ var i1 = attribute.indexOf('[');
+ if(i1 >= 0){
+ var i2 = attribute.indexOf(']');
+ var index = attribute.substring(i1 + 1, i2);
+ attribute = attribute.substring(0, i1);
+ var array = this.dataStore.getValues(item, attribute);
+ if(array){
+ if(!index){ // return array for "attribute[]"
+ value = array;
+ }else{
+ value = array[index];
+ }
+ }
+ }else{
+ value = this.dataStore.getValue(item, attribute);
+ }
+ return value; //anything
+ },
+
+ _setAttributeValue: function(/*Object*/item, /*String*/attribute, /*anything*/value){
+ // summary:
+ // Set an attribute value to an item
+ // description:
+ // This method uses an item passed in 'item' argument and
+ // 'attribute' argument to call setValue() method of 'dataStore'
+ // with 'value' argument.
+ // If an attribute name have an array suffix ("[]"), setValues()
+ // method is called, instead.
+ // If an index is specified in the array suffix, an array element
+ // for the index is set to 'value', instead of the array itself.
+ // item:
+ // An item
+ // attribute:
+ // An attribute name
+ // value:
+ // A value to set
+ var i1 = attribute.indexOf('[');
+ if(i1 >= 0){
+ var i2 = attribute.indexOf(']');
+ var index = attribute.substring(i1 + 1, i2);
+ attribute = attribute.substring(0, i1);
+ var array = null;
+ if(!index){ // replace whole array for "attribute[]"
+ array = value;
+ }else{
+ array = this.dataStore.getValues(item, attribute);
+ if(!array){
+ array = [];
+ }
+ array[index] = value;
+ }
+ this.dataStore.setValues(item, attribute, array);
+ }else{
+ this.dataStore.setValue(item, attribute, value);
+ }
+ }
+});
+
+}
projects / eow / blobdiff