82 lines
2.6 KiB
JavaScript
82 lines
2.6 KiB
JavaScript
define("dojox/mvc/equals", [
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"dojo/_base/array",
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"dojo/_base/lang",
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"dojo/Stateful",
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"./StatefulArray"
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], function(array, lang, Stateful, StatefulArray){
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var equalsOptions = {
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// summary:
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// Options used for dojox/mvc/equals().
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getType: function(/*Anything*/ v){
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// summary:
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// Returns the type of the given value.
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// v: Anything
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// The value.
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return lang.isArray(v) ? "array" : lang.isFunction((v || {}).getTime) ? "date" : v != null && ({}.toString.call(v) == "[object Object]" || lang.isFunction((v || {}).set) && lang.isFunction((v || {}).watch)) ? "object" : "value";
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},
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equalsArray: function(/*Anything[]*/ dst, /*Anything[]*/ src){
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// summary:
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// Returns if the given two stateful arrays are equal.
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// dst: Anything[]
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// The array to compare with.
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// src: Anything[]
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// The array to compare with.
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for(var i = 0, l = Math.max(dst.length, src.length); i < l; i++){
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if(!equals(dst[i], src[i])){ return false; }
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}
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return true;
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},
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equalsDate: function(/*Date*/ dst, /*Date*/ src){
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return dst.getTime() == src.getTime();
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},
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equalsObject: function(/*Object*/ dst, /*Object*/ src){
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// summary:
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// Returns if the given two stateful objects are equal.
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// dst: Object
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// The object to compare with.
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// src: Object
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// The object to compare with.
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var list = lang.mixin({}, dst, src);
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for(var s in list){
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if(!(s in Stateful.prototype) && s != "_watchCallbacks" && !equals(dst[s], src[s])){ return false; }
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}
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return true;
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},
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equalsValue: function(/*Anything*/ dst, /*Anything*/ src){
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// summary:
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// Returns if the given two values are equal.
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return dst === src; // Boolean
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}
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};
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var equals = function(/*Anything*/ dst, /*Anything*/ src, /*dojox/mvc/equalsOptions*/ options){
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// summary:
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// Compares two dojo/Stateful objects, by diving into the leaves.
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// description:
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// Recursively iterates and compares stateful values.
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// dst: Anything
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// The stateful value to compare with.
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// src: Anything
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// The stateful value to compare with.
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// options: dojox/mvc/equalsOptions
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// The object that defines how two stateful values are compared.
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// returns: Boolean
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// True if dst equals to src, false otherwise.
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var opts = options || equals, types = [opts.getType(dst), opts.getType(src)];
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return types[0] != types[1] ? false : opts["equals" + types[0].replace(/^[a-z]/, function(c){ return c.toUpperCase(); })](dst, src); // Boolean
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};
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// lang.setObject() thing is for back-compat, remove it in 2.0
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return lang.setObject("dojox.mvc.equals", lang.mixin(equals, equalsOptions));
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});
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