if(!dojo._hasResource["dojo._base.lang"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. dojo._hasResource["dojo._base.lang"] = true; dojo.provide("dojo._base.lang"); // Crockford (ish) functions dojo.isString = function(/*anything*/ it){ // summary: // Return true if it is a String return !!arguments.length && it != null && (typeof it == "string" || it instanceof String); // Boolean } dojo.isArray = function(/*anything*/ it){ // summary: // Return true if it is an Array return it && (it instanceof Array || typeof it == "array"); // Boolean } /*===== dojo.isFunction = function(it){ // summary: Return true if it is a Function // it: anything // return: Boolean } =====*/ dojo.isFunction = (function(){ var _isFunction = function(/*anything*/ it){ return it && (typeof it == "function" || it instanceof Function); // Boolean }; return dojo.isSafari ? // only slow this down w/ gratuitious casting in Safari since it's what's b0rken function(/*anything*/ it){ if(typeof it == "function" && it == "[object NodeList]"){ return false; } return _isFunction(it); // Boolean } : _isFunction; })(); dojo.isObject = function(/*anything*/ it){ // summary: // Returns true if it is a JavaScript object (or an Array, a Function // or null) return it !== undefined && (it === null || typeof it == "object" || dojo.isArray(it) || dojo.isFunction(it)); // Boolean } dojo.isArrayLike = function(/*anything*/ it){ // summary: // similar to dojo.isArray() but more permissive // description: // Doesn't strongly test for "arrayness". Instead, settles for "isn't // a string or number and has a length property". Arguments objects // and DOM collections will return true when passed to // dojo.isArrayLike(), but will return false when passed to // dojo.isArray(). // return: // If it walks like a duck and quicks like a duck, return `true` var d = dojo; return it && it !== undefined && // keep out built-in constructors (Number, String, ...) which have length // properties !d.isString(it) && !d.isFunction(it) && !(it.tagName && it.tagName.toLowerCase() == 'form') && (d.isArray(it) || isFinite(it.length)); // Boolean } dojo.isAlien = function(/*anything*/ it){ // summary: // Returns true if it is a built-in function or some other kind of // oddball that *should* report as a function but doesn't return it && !dojo.isFunction(it) && /\{\s*\[native code\]\s*\}/.test(String(it)); // Boolean } dojo.extend = function(/*Object*/ constructor, /*Object...*/ props){ // summary: // Adds all properties and methods of props to constructor's // prototype, making them available to all instances created with // constructor. for(var i=1, l=arguments.length; i 2){ return dojo._hitchArgs.apply(dojo, arguments); // Function } if(!method){ method = scope; scope = null; } if(dojo.isString(method)){ scope = scope || dojo.global; if(!scope[method]){ throw(['dojo.hitch: scope["', method, '"] is null (scope="', scope, '")'].join('')); } return function(){ return scope[method].apply(scope, arguments || []); }; // Function } return !scope ? method : function(){ return method.apply(scope, arguments || []); }; // Function } /*===== dojo.delegate = function(obj, props){ // summary: // returns a new object which "looks" to obj for properties which it // does not have a value for. Optionally takes a bag of properties to // seed the returned object with initially. // description: // This is a small implementaton of the Boodman/Crockford delegation // pattern in JavaScript. An intermediate object constructor mediates // the prototype chain for the returned object, using it to delegate // down to obj for property lookup when object-local lookup fails. // This can be thought of similarly to ES4's "wrap", save that it does // not act on types but rather on pure objects. // obj: // The object to delegate to for properties not found directly on the // return object or in props. // props: // an object containing properties to assign to the returned object // returns: // an Object of anonymous type // example: // | var foo = { bar: "baz" }; // | var thinger = dojo.delegate(foo, { thud: "xyzzy"}); // | thinger.bar == "baz"; // delegated to foo // | foo.thud == undefined; // by definition // | thinger.thud == "xyzzy"; // mixed in from props // | foo.bar = "thonk"; // | thinger.bar == "thonk"; // still delegated to foo's bar } =====*/ dojo.delegate = dojo._delegate = function(obj, props){ // boodman/crockford delegation function TMP(){}; TMP.prototype = obj; var tmp = new TMP(); if(props){ dojo.mixin(tmp, props); } return tmp; // Object } dojo.partial = function(/*Function|String*/method /*, ...*/){ // summary: // similar to hitch() except that the scope object is left to be // whatever the execution context eventually becomes. // description: // Calling dojo.partial is the functional equivalent of calling: // | dojo.hitch(null, funcName, ...); var arr = [ null ]; return dojo.hitch.apply(dojo, arr.concat(dojo._toArray(arguments))); // Function } dojo._toArray = function(/*Object*/obj, /*Number?*/offset, /*Array?*/ startWith){ // summary: // Converts an array-like object (i.e. arguments, DOMCollection) to an // array. Returns a new Array with the elements of obj. // obj: // the object to "arrayify". We expect the object to have, at a // minimum, a length property which corresponds to integer-indexed // properties. // offset: // the location in obj to start iterating from. Defaults to 0. // Optional. // startWith: // An array to pack with the properties of obj. If provided, // properties in obj are appended at the end of startWith and // startWith is the returned array. var arr = startWith||[]; for(var x = offset || 0; x < obj.length; x++){ arr.push(obj[x]); } return arr; // Array } dojo.clone = function(/*anything*/ o){ // summary: // Clones objects (including DOM nodes) and all children. // Warning: do not clone cyclic structures. if(!o){ return o; } if(dojo.isArray(o)){ var r = []; for(var i = 0; i < o.length; ++i){ r.push(dojo.clone(o[i])); } return r; // Array } if(!dojo.isObject(o)){ return o; /*anything*/ } if(o.nodeType && o.cloneNode){ // isNode return o.cloneNode(true); // Node } if(o instanceof Date){ return new Date(o.getTime()); // Date } // Generic objects var r = new o.constructor(); // specific to dojo.declare()'d classes! for(var i in o){ if(!(i in r) || r[i] != o[i]){ r[i] = dojo.clone(o[i]); } } return r; // Object } dojo.trim = function(/*String*/ str){ // summary: // trims whitespaces from both sides of the string // description: // This version of trim() was selected for inclusion into the base due // to its compact size and relatively good performance (see Steven // Levithan's blog: // http://blog.stevenlevithan.com/archives/faster-trim-javascript). // The fastest but longest version of this function is located at // dojo.string.trim() return str.replace(/^\s\s*/, '').replace(/\s\s*$/, ''); // String } }