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ReactiveObject.js
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ReactiveObject.js
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define(['./Cascade'], function(Cascade){
// simple wrapper around JS objects
function ReactiveObject(value, key, parentValue){
if(value !== undefined){
this.is(value);
}
this.put = function(value){
// call set if we can
parentValue.set ? parentValue.set(key, value) : parentValue[key] = value;
// set the new value if watch doesn't already do this
if(parentValue.watch == nativeWatch || !parentValue.set){
this.is(value);
}
};
};
var nativeWatch = {}.watch;
var ReactiveObjectPrototype = ReactiveObject.prototype = new Cascade;
ReactiveObjectPrototype.get = function(key){
var parentValue= this.value;
if(parentValue){
// if the object has a (non-native) watch, then we will watch for changes
if(parentValue.watch != nativeWatch){
parentValue.watch(key, function(name, oldValue, value){
// change the value of this reactive
reactive.is(value);
});
}
// check for get() method, if not use direct property access
var value = parentValue.get ? parentValue.get(key) : parentValue[key];
}else{
// don't cause errors for invalid properties, just keep giving a null (maybe this should be undefined)
value = null;
}
var reactive = new ReactiveObject(value, key, parentValue);
return reactive;
};
return ReactiveObject;
});