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//>>built
define("dojox/mvc/Bind", [
"dojo/_base/lang",
"dojo/_base/array"
], function(lang, array){
var mvc = lang.getObject("dojox.mvc", true);
/*=====
mvc = dojox.mvc;
=====*/
return lang.mixin(mvc, {
bind: function(/*dojo.Stateful*/ source, /*String*/ sourceProp,
/*dojo.Stateful*/ target, /*String*/ targetProp,
/*Function?*/ func, /*Boolean?*/ bindOnlyIfUnequal){
// summary:
// Bind the specified property of the target to the specified
// property of the source with the supplied transformation.
// source:
// The source dojo.Stateful object for the bind.
// sourceProp:
// The name of the source's property whose change triggers the bind.
// target:
// The target dojo.Stateful object for the bind whose
// property will be updated with the result of the function.
// targetProp:
// The name of the target's property to be updated with the
// result of the function.
// func:
// The optional calculation to be performed to obtain the target
// property value.
// bindOnlyIfUnequal:
// Whether the bind notification should happen only if the old and
// new values are unequal (optional, defaults to false).
var convertedValue;
return source.watch(sourceProp, function(prop, oldValue, newValue){
convertedValue = lang.isFunction(func) ? func(newValue) : newValue;
if(!bindOnlyIfUnequal || convertedValue != target.get(targetProp)){
target.set(targetProp, convertedValue);
}
});
},
bindInputs: function(/*dojo.Stateful[]*/ sourceBindArray, /*Function*/ func){
// summary:
// Bind the values at the sources specified in the first argument
// array such that a composing function in the second argument is
// called when any of the values changes.
// sourceBindArray:
// The array of dojo.Stateful objects to watch values changes on.
// func:
// The composing function that is called when any of the source
// values changes.
// tags:
// protected
var watchHandles = [];
array.forEach(sourceBindArray, function(h){
watchHandles.push(h.watch("value", func));
});
return watchHandles;
}
});
});
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