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authorAndrew Dolgov <[email protected]>2011-03-04 19:02:28 +0300
committerAndrew Dolgov <[email protected]>2011-03-04 19:02:59 +0300
commita089699c8915636ba4f158d77dba9b012bc93208 (patch)
treeb2d7d051f1f55d44a6be07d3ee137e5a7ccfcefb /lib/dojo/_base/lang.js
parentcfad9259a6feacfa8194b1312770ae6db1ecce50 (diff)
build custom layer of Dojo to speed up loading of tt-rss (refs #293)
Diffstat (limited to 'lib/dojo/_base/lang.js')
-rw-r--r--lib/dojo/_base/lang.js518
1 files changed, 381 insertions, 137 deletions
diff --git a/lib/dojo/_base/lang.js b/lib/dojo/_base/lang.js
index e7721a352..0e9c7c2f9 100644
--- a/lib/dojo/_base/lang.js
+++ b/lib/dojo/_base/lang.js
@@ -5,144 +5,388 @@
*/
-if(!dojo._hasResource["dojo._base.lang"]){
-dojo._hasResource["dojo._base.lang"]=true;
+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");
+
(function(){
-var d=dojo,_1=Object.prototype.toString;
-dojo.isString=function(it){
-return (typeof it=="string"||it instanceof String);
-};
-dojo.isArray=function(it){
-return it&&(it instanceof Array||typeof it=="array");
-};
-dojo.isFunction=function(it){
-return _1.call(it)==="[object Function]";
-};
-dojo.isObject=function(it){
-return it!==undefined&&(it===null||typeof it=="object"||d.isArray(it)||d.isFunction(it));
-};
-dojo.isArrayLike=function(it){
-return it&&it!==undefined&&!d.isString(it)&&!d.isFunction(it)&&!(it.tagName&&it.tagName.toLowerCase()=="form")&&(d.isArray(it)||isFinite(it.length));
-};
-dojo.isAlien=function(it){
-return it&&!d.isFunction(it)&&/\{\s*\[native code\]\s*\}/.test(String(it));
-};
-dojo.extend=function(_2,_3){
-for(var i=1,l=arguments.length;i<l;i++){
-d._mixin(_2.prototype,arguments[i]);
-}
-return _2;
-};
-dojo._hitchArgs=function(_4,_5){
-var _6=d._toArray(arguments,2);
-var _7=d.isString(_5);
-return function(){
-var _8=d._toArray(arguments);
-var f=_7?(_4||d.global)[_5]:_5;
-return f&&f.apply(_4||this,_6.concat(_8));
-};
-};
-dojo.hitch=function(_9,_a){
-if(arguments.length>2){
-return d._hitchArgs.apply(d,arguments);
-}
-if(!_a){
-_a=_9;
-_9=null;
-}
-if(d.isString(_a)){
-_9=_9||d.global;
-if(!_9[_a]){
-throw (["dojo.hitch: scope[\"",_a,"\"] is null (scope=\"",_9,"\")"].join(""));
-}
-return function(){
-return _9[_a].apply(_9,arguments||[]);
-};
-}
-return !_9?_a:function(){
-return _a.apply(_9,arguments||[]);
-};
-};
-dojo.delegate=dojo._delegate=(function(){
-function _b(){
-};
-return function(_c,_d){
-_b.prototype=_c;
-var _e=new _b();
-_b.prototype=null;
-if(_d){
-d._mixin(_e,_d);
-}
-return _e;
-};
-})();
-var _f=function(obj,_10,_11){
-return (_11||[]).concat(Array.prototype.slice.call(obj,_10||0));
-};
-var _12=function(obj,_13,_14){
-var arr=_14||[];
-for(var x=_13||0;x<obj.length;x++){
-arr.push(obj[x]);
-}
-return arr;
-};
-dojo._toArray=d.isIE?function(obj){
-return ((obj.item)?_12:_f).apply(this,arguments);
-}:_f;
-dojo.partial=function(_15){
-var arr=[null];
-return d.hitch.apply(d,arr.concat(d._toArray(arguments)));
-};
-var _16=d._extraNames,_17=_16.length,_18={};
-dojo.clone=function(o){
-if(!o||typeof o!="object"||d.isFunction(o)){
-return o;
-}
-if(o.nodeType&&"cloneNode" in o){
-return o.cloneNode(true);
-}
-if(o instanceof Date){
-return new Date(o.getTime());
-}
-var r,i,l,s,_19;
-if(d.isArray(o)){
-r=[];
-for(i=0,l=o.length;i<l;++i){
-if(i in o){
-r.push(d.clone(o[i]));
-}
-}
-}else{
-r=o.constructor?new o.constructor():{};
-}
-for(_19 in o){
-s=o[_19];
-if(!(_19 in r)||(r[_19]!==s&&(!(_19 in _18)||_18[_19]!==s))){
-r[_19]=d.clone(s);
-}
-}
-if(_17){
-for(i=0;i<_17;++i){
-_19=_16[i];
-s=o[_19];
-if(!(_19 in r)||(r[_19]!==s&&(!(_19 in _18)||_18[_19]!==s))){
-r[_19]=s;
-}
-}
-}
-return r;
-};
-dojo.trim=String.prototype.trim?function(str){
-return str.trim();
-}:function(str){
-return str.replace(/^\s\s*/,"").replace(/\s\s*$/,"");
-};
-var _1a=/\{([^\}]+)\}/g;
-dojo.replace=function(_1b,map,_1c){
-return _1b.replace(_1c||_1a,d.isFunction(map)?map:function(_1d,k){
-return d.getObject(k,false,map);
-});
-};
+ var d = dojo, opts = Object.prototype.toString;
+
+ // Crockford (ish) functions
+
+ dojo.isString = function(/*anything*/ it){
+ // summary:
+ // Return true if it is a String
+ return (typeof it == "string" || it instanceof String); // Boolean
+ }
+
+ dojo.isArray = function(/*anything*/ it){
+ // summary:
+ // Return true if it is an Array.
+ // Does not work on Arrays created in other windows.
+ return it && (it instanceof Array || typeof it == "array"); // Boolean
+ }
+
+ dojo.isFunction = function(/*anything*/ it){
+ // summary:
+ // Return true if it is a Function
+ return opts.call(it) === "[object Function]";
+ };
+
+ 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" || d.isArray(it) || d.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().
+ // returns:
+ // If it walks like a duck and quacks like a duck, return `true`
+ return it && it !== undefined && // Boolean
+ // 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));
+ }
+
+ 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 && !d.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<l; i++){
+ d._mixin(constructor.prototype, arguments[i]);
+ }
+ return constructor; // Object
+ }
+
+ dojo._hitchArgs = function(scope, method /*,...*/){
+ var pre = d._toArray(arguments, 2);
+ var named = d.isString(method);
+ return function(){
+ // arrayify arguments
+ var args = d._toArray(arguments);
+ // locate our method
+ var f = named ? (scope||d.global)[method] : method;
+ // invoke with collected args
+ return f && f.apply(scope || this, pre.concat(args)); // mixed
+ } // Function
+ }
+
+ dojo.hitch = function(/*Object*/scope, /*Function|String*/method /*,...*/){
+ // summary:
+ // Returns a function that will only ever execute in the a given scope.
+ // This allows for easy use of object member functions
+ // in callbacks and other places in which the "this" keyword may
+ // otherwise not reference the expected scope.
+ // Any number of default positional arguments may be passed as parameters
+ // beyond "method".
+ // Each of these values will be used to "placehold" (similar to curry)
+ // for the hitched function.
+ // scope:
+ // The scope to use when method executes. If method is a string,
+ // scope is also the object containing method.
+ // method:
+ // A function to be hitched to scope, or the name of the method in
+ // scope to be hitched.
+ // example:
+ // | dojo.hitch(foo, "bar")();
+ // runs foo.bar() in the scope of foo
+ // example:
+ // | dojo.hitch(foo, myFunction);
+ // returns a function that runs myFunction in the scope of foo
+ // example:
+ // Expansion on the default positional arguments passed along from
+ // hitch. Passed args are mixed first, additional args after.
+ // | var foo = { bar: function(a, b, c){ console.log(a, b, c); } };
+ // | var fn = dojo.hitch(foo, "bar", 1, 2);
+ // | fn(3); // logs "1, 2, 3"
+ // example:
+ // | var foo = { bar: 2 };
+ // | dojo.hitch(foo, function(){ this.bar = 10; })();
+ // execute an anonymous function in scope of foo
+
+ if(arguments.length > 2){
+ return d._hitchArgs.apply(d, arguments); // Function
+ }
+ if(!method){
+ method = scope;
+ scope = null;
+ }
+ if(d.isString(method)){
+ scope = scope || d.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(){
+ // boodman/crockford delegation w/ cornford optimization
+ function TMP(){}
+ return function(obj, props){
+ TMP.prototype = obj;
+ var tmp = new TMP();
+ TMP.prototype = null;
+ if(props){
+ d._mixin(tmp, props);
+ }
+ return tmp; // Object
+ }
+ })();
+
+ /*=====
+ dojo._toArray = function(obj, offset, startWith){
+ // summary:
+ // Converts an array-like object (i.e. arguments, DOMCollection) to an
+ // array. Returns a new Array with the elements of obj.
+ // obj: Object
+ // the object to "arrayify". We expect the object to have, at a
+ // minimum, a length property which corresponds to integer-indexed
+ // properties.
+ // offset: Number?
+ // the location in obj to start iterating from. Defaults to 0.
+ // Optional.
+ // startWith: Array?
+ // 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 efficient = function(obj, offset, startWith){
+ return (startWith||[]).concat(Array.prototype.slice.call(obj, offset||0));
+ };
+
+ var slow = function(obj, offset, startWith){
+ var arr = startWith||[];
+ for(var x = offset || 0; x < obj.length; x++){
+ arr.push(obj[x]);
+ }
+ return arr;
+ };
+
+ dojo._toArray =
+ d.isIE ? function(obj){
+ return ((obj.item) ? slow : efficient).apply(this, arguments);
+ } :
+ efficient;
+
+ 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 d.hitch.apply(d, arr.concat(d._toArray(arguments))); // Function
+ }
+
+ var extraNames = d._extraNames, extraLen = extraNames.length, empty = {};
+
+ dojo.clone = function(/*anything*/ o){
+ // summary:
+ // Clones objects (including DOM nodes) and all children.
+ // Warning: do not clone cyclic structures.
+ if(!o || typeof o != "object" || d.isFunction(o)){
+ // null, undefined, any non-object, or function
+ return o; // anything
+ }
+ if(o.nodeType && "cloneNode" in o){
+ // DOM Node
+ return o.cloneNode(true); // Node
+ }
+ if(o instanceof Date){
+ // Date
+ return new Date(o.getTime()); // Date
+ }
+ var r, i, l, s, name;
+ if(d.isArray(o)){
+ // array
+ r = [];
+ for(i = 0, l = o.length; i < l; ++i){
+ if(i in o){
+ r.push(d.clone(o[i]));
+ }
+ }
+// we don't clone functions for performance reasons
+// }else if(d.isFunction(o)){
+// // function
+// r = function(){ return o.apply(this, arguments); };
+ }else{
+ // generic objects
+ r = o.constructor ? new o.constructor() : {};
+ }
+ for(name in o){
+ // the "tobj" condition avoid copying properties in "source"
+ // inherited from Object.prototype. For example, if target has a custom
+ // toString() method, don't overwrite it with the toString() method
+ // that source inherited from Object.prototype
+ s = o[name];
+ if(!(name in r) || (r[name] !== s && (!(name in empty) || empty[name] !== s))){
+ r[name] = d.clone(s);
+ }
+ }
+ // IE doesn't recognize some custom functions in for..in
+ if(extraLen){
+ for(i = 0; i < extraLen; ++i){
+ name = extraNames[i];
+ s = o[name];
+ if(!(name in r) || (r[name] !== s && (!(name in empty) || empty[name] !== s))){
+ r[name] = s; // functions only, we don't clone them
+ }
+ }
+ }
+ return r; // Object
+ }
+
+ /*=====
+ dojo.trim = function(str){
+ // summary:
+ // Trims whitespace from both sides of the string
+ // str: String
+ // String to be trimmed
+ // returns: String
+ // Returns the trimmed 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)
+ // Uses String.prototype.trim instead, if available.
+ // The fastest but longest version of this function is located at
+ // dojo.string.trim()
+ return ""; // String
+ }
+ =====*/
+
+ dojo.trim = String.prototype.trim ?
+ function(str){ return str.trim(); } :
+ function(str){ return str.replace(/^\s\s*/, '').replace(/\s\s*$/, ''); };
+
+ /*=====
+ dojo.replace = function(tmpl, map, pattern){
+ // summary:
+ // Performs parameterized substitutions on a string. Throws an
+ // exception if any parameter is unmatched.
+ // tmpl: String
+ // String to be used as a template.
+ // map: Object|Function
+ // If an object, it is used as a dictionary to look up substitutions.
+ // If a function, it is called for every substitution with following
+ // parameters: a whole match, a name, an offset, and the whole template
+ // string (see https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/String/replace
+ // for more details).
+ // pattern: RegEx?
+ // Optional regular expression objects that overrides the default pattern.
+ // Must be global and match one item. The default is: /\{([^\}]+)\}/g,
+ // which matches patterns like that: "{xxx}", where "xxx" is any sequence
+ // of characters, which doesn't include "}".
+ // returns: String
+ // Returns the substituted string.
+ // example:
+ // | // uses a dictionary for substitutions:
+ // | dojo.replace("Hello, {name.first} {name.last} AKA {nick}!",
+ // | {
+ // | nick: "Bob",
+ // | name: {
+ // | first: "Robert",
+ // | middle: "X",
+ // | last: "Cringely"
+ // | }
+ // | });
+ // | // returns: Hello, Robert Cringely AKA Bob!
+ // example:
+ // | // uses an array for substitutions:
+ // | dojo.replace("Hello, {0} {2}!",
+ // | ["Robert", "X", "Cringely"]);
+ // | // returns: Hello, Robert Cringely!
+ // example:
+ // | // uses a function for substitutions:
+ // | function sum(a){
+ // | var t = 0;
+ // | dojo.forEach(a, function(x){ t += x; });
+ // | return t;
+ // | }
+ // | dojo.replace(
+ // | "{count} payments averaging {avg} USD per payment.",
+ // | dojo.hitch(
+ // | { payments: [11, 16, 12] },
+ // | function(_, key){
+ // | switch(key){
+ // | case "count": return this.payments.length;
+ // | case "min": return Math.min.apply(Math, this.payments);
+ // | case "max": return Math.max.apply(Math, this.payments);
+ // | case "sum": return sum(this.payments);
+ // | case "avg": return sum(this.payments) / this.payments.length;
+ // | }
+ // | }
+ // | )
+ // | );
+ // | // prints: 3 payments averaging 13 USD per payment.
+ // example:
+ // | // uses an alternative PHP-like pattern for substitutions:
+ // | dojo.replace("Hello, ${0} ${2}!",
+ // | ["Robert", "X", "Cringely"], /\$\{([^\}]+)\}/g);
+ // | // returns: Hello, Robert Cringely!
+ return ""; // String
+ }
+ =====*/
+
+ var _pattern = /\{([^\}]+)\}/g;
+ dojo.replace = function(tmpl, map, pattern){
+ return tmpl.replace(pattern || _pattern, d.isFunction(map) ?
+ map : function(_, k){ return d.getObject(k, false, map); });
+ };
})();
+
}