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widget.js
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widget.js
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define(['dojo/Deferred'], function(Deferred){
var nextId = 0;
var literals = {
'true': true,
'false': false,
'null': null
};
function parse(value, callback, type, rule){
if(rule){
var widgetCssClass = 'x-widget-' + nextId++;
// create new rule for the generated elements
rule.addSheetRule('.' + widgetCssClass, rule.cssText);
widgetCssClass = ' ' + widgetCssClass; // make it suitable for direct addition to className
}
if(value.eachProperty){
var props = {/*cssText: value.cssText*/};
value.eachProperty(function(name, value){
name = name.replace(/-\w/g, function(dashed){
return dashed.charAt(1).toUpperCase();
});
value = parse(value);
if(name == "type" && callback){
type = value;
}else{
props[name] = value;
}
});
value = props;
// load the class, and adjust the property types based on the class prototype
if(type){
if(window[type]){
classLoaded(window[type]);
}
require(typeof type == 'string' ? type.split(/\s*,\s*/) : type, classLoaded);
function classLoaded(Class, Mixin){
if(Mixin){
// more than one, mix them together
// TODO: This should be Class.extend(arguments.slice(1)), but dojo.declare has a bug in extend that causes it modify the original
Class = dojo.declare([].slice.call(arguments,0)); // convert the arguments to an array of mixins
}
var prototype = Class.prototype;
for(var name in props){
var value = props[name];
if(name in prototype){
var type = typeof prototype[name];
if(type == "string" || typeof value != "string"){
}else if(type == "number"){
props[name] = +value;
}else{
props[name] = eval(value);
}
}
}
callback(function(element){
var widget = new Class(props, element);
if(widgetCssClass){
widget.domNode.className += ' ' + widgetCssClass;
}
});
}
}else if(callback){
console.error("No type defined for widget");
}
}else if(typeof value == 'object'){
// an array or object
}else if(value.charAt(0) == "'" || value.charAt(0) == '"'){
value = eval(value);
}else if(!isNaN(value)){
value = +value;
}else if(literals.hasOwnProperty(value)){
value = literals[value];
}
return value;
}
function Widget(scope){
return {
widget: function(value, rule){
var modules = [];
value.replace(/require\s*\(\s*['"]([^'"]*)['"]\s*\)/g, function(t, moduleId){
modules.push(moduleId);
});
require(modules);
return function(domNode){
require(modules, function(){
with(scope){
var __module = eval(value);
var prototype = __module.prototype;
var props = {};
if(prototype){
rule.eachProperty(function(t, name, value){
if(name in prototype){
var type = typeof prototype[name];
if(type == "string" || typeof value != "string"){
props[name] = value;
}else if(type == "number"){
props[name] = +value;
}else{
props[name] = eval(value);
}
}
});
}
__module(props, domNode);
}
});
};
},
role: "layout"
};
}
var def = new Widget({});
Widget.widget = def.widget;
Widget.role = def.role;
return {
put: function(value, rule){
// used for a widget property:
// widget: {
// type: 'dijit/form/Button';
// label: 'Save';
// }
return {
then: function(callback){
var deferred = new Deferred();
parse(value[0].eachProperty ? value[0] : rule, function(renderer){
deferred.resolve({
forElement: function(element){
renderer(element);
}
});
}, typeof value == 'string' && value, rule);
return deferred.then(callback);
}
};
},
parse: parse
/*,
onFunction: function(name, propertyName, value){
// this allows us to create a CSS widget function
// x-property{
// my-widget: widget(my/Widget);
// }
// .class{
// my-widget: 'settings';
// }
return function(name, propertyValue){
require([value], function(Class){
xstyle.addRenderer(rule, function(element){
new Class(parse(propertyValue), element);
});
});
};
}*/
}
})