456 lines
8.5 KiB
JavaScript
Executable File
456 lines
8.5 KiB
JavaScript
Executable File
/**
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Kis JS Keep It Simple JS Library
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Copyright Timothy J. Warren
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License Public Domain
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Version 0.8.0
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*/
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(function (undefined){
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"use strict";
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var $_, $, sel;
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/**
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* $_
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*
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* Constructor function
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*
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* @constuctor
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* @namespace
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* @param string selector
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* @return object
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*/
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$_ = function(s)
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{
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// Have documentElement be default selector, just in case
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if (s === undefined)
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{
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// Defines a "global" selector for that instance
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sel = ($_.el !== undefined)
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? $_.el
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: document.documentElement;
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}
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else
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{
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sel = $(s);
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}
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// Add the selector to the prototype
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$_.prototype.el = sel;
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// Use the $_ object as it's own prototype
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var self = Object.create($_);
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// Give sel to each extension.
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for(var i in self)
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{
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if(typeof self[i] === "object")
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{
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self[i].el = sel;
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}
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}
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self.el = sel;
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return self;
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};
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/**
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* Simple DOM selector function
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*
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* @memberOf $_
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* @param string selector
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* @param object context
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* @return object
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* @type object
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*/
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$ = function (a, context)
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{
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var x, c;
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if (typeof a != "string" || a === undefined){ return a;}
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//Check for a context of a specific element, otherwise, just run on the document
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c = (context != null && context.nodeType === 1)
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? context
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: document;
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//Pick the quickest method for each kind of selector
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if (a.match(/^#([\w\-]+$)/))
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{
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return document.getElementById(a.split('#')[1]);
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}
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else
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{
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x = c.querySelectorAll(a);
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}
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//Return the single object if applicable
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return (x.length === 1) ? x[0] : x;
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};
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/**
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* Adds the property `obj` to the $_ object, calling it `name`
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*
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* @param string name
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* @param object obj
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*/
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$_.ext = function(name, obj)
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{
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obj.el = sel;
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$_[name] = obj;
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};
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/**
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* Iterates over a $_ object, applying a callback to each item
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*
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* @name $_.each
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* @function
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* @param function callback
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*/
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$_.ext('each', function (callback)
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{
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if(sel.length !== undefined && sel !== window)
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{
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[].forEach.call(sel, callback);
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}
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else
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{
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callback.call(sel, sel);
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}
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});
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/**
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* Retrieves the type of the passed variable
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*
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* @param mixed obj
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* @return string
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* @type string
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*/
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$_.type = function(obj)
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{
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if((function() {return obj && (obj !== this)}).call(obj))
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{
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//fallback on 'typeof' for truthy primitive values
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return (typeof obj).toLowerCase();
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}
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//Strip x from [object x] and return
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return ({}).toString.call(obj).match(/\s([a-z|A-Z]+)/)[1].toLowerCase();
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};
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//Set global variables
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$_ = window.$_ = window.$_ || $_;
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$_.$ = $;
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}());
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// --------------------------------------------------------------------------
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/**
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* A module of various browser polyfills
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* @file polyfill.js
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*/
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/**
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* String trim function polyfill
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*/
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if(typeof String.prototype.trim === "undefined")
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{
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/**
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* @private
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*/
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String.prototype.trim = function()
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{
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return this.replace(/^[\s\uFEFF]+|[\s\uFEFF]+$/g, "");
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};
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}
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// --------------------------------------------------------------------------
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/**
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* Array.isArray polyfill
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*/
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if (typeof Array.isArray === "undefined")
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{
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Array.isArray = function(v)
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{
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return Object.prototype.toString.apply(v) === '[object Array]';
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}
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}
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// --------------------------------------------------------------------------
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/**
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* Ajax
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*
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* Module for making ajax requests
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*/
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(function (undefined){
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"use strict";
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var ajax = {
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_do: function (url, data, success_callback, error_callback, isPost)
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{
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var type,
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request = new XMLHttpRequest();
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if (success_callback === undefined)
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{
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/**
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* @private
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*/
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success_callback = function (){};
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}
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type = (isPost) ? "POST" : "GET";
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if (type === "GET")
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{
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url += (url.match(/\?/))
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? this._serialize(data)
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: "?" + this._serialize(data);
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}
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request.open(type, url);
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request.onreadystatechange = function ()
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{
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if (request.readyState === 4)
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{
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if (request.status === 200)
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{
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success_callback.call(request.responseText, request.responseText);
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}
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else
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{
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if (error_callback !== undefined)
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{
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error_callback.call(request.status, request.status);
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}
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}
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}
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};
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if (type === "POST")
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{
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request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
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request.send(this._serialize(data));
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}
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else
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{
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request.send(null);
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}
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},
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_serialize: function (data)
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{
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var name,
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value,
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pairs = [];
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for (name in data)
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{
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if ( ! data.hasOwnProperty(name) || typeof data[name] === "function")
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{
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continue;
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}
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value = data[name].toString();
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name = encodeURIComponent(name);
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value = encodeURIComponent(value);
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pairs.push(name + "=" + value);
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}
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return pairs.join("&");
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}
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};
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/**
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* Sends a GET type ajax request
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*
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* @name get
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* @function
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* @memberOf $_
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* @param string url
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* @param object data
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* @param function success_callback
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* @param function error_callback
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*/
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$_.ext('get', function (url, data, success_callback, error_callback){
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ajax._do(url, data, success_callback, error_callback, false);
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});
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/**
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* Sends a POST type ajax request
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*
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* @name post
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* @function
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* @memberOf $_
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* @param string url
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* @param object data
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* @param function success_callback
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* @param function error_callback
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*/
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$_.ext('post', function (url, data, success_callback, error_callback){
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ajax._do(url, data, success_callback, error_callback, true);
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});
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}());
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// --------------------------------------------------------------------------
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/**
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* Event
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*
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* Event api wrapper
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* @todo Add method for triggering events
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*/
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(function (undefined){
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"use strict";
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var _add_remove, e, _attach_delegate;
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_add_remove = function (sel, event, callback, add)
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{
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var i, len;
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if(sel === undefined)
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{
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return null;
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}
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// Multiple events? Run recursively!
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if ( ! event.match(/^([\w\-]+)$/))
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{
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event = event.split(" ");
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len = event.length;
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for (i = 0; i < len; i++)
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{
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_add_remove(sel, event[i], callback, add);
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}
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return;
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}
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// Bind the event
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(add === true)
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? sel.addEventListener(event, callback, false)
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: sel.removeEventListener(event, callback, false);
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};
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_attach_delegate = function(sel, target, event, callback)
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{
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// attach the listener to the parent object
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_add_remove(sel, event, function(e){
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var elem, t;
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// Get the live version of the target selector
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t = $_.$(target, sel);
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// Check each element to see if it matches the target
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for(elem in t)
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{
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// Fire target callback when event bubbles from target
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if(e.target == t[elem])
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{
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// Trigger the event callback
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callback.call(t[elem], e);
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// Stop event propegation
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e.stopPropagation();
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}
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}
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}, true);
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};
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// --------------------------------------------------------------------------
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/**
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* Event Listener module
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*
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* @namespace
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* @name event
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* @memberOf $_
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*/
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e = {
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/**
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* Adds an event that returns a callback when triggered on the selected
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* event and selector
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*
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* @memberOf $_.event
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* @name add
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* @function
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* @example Eg. $_("#selector").event.add("click", do_something());
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* @param string event
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* @param function callback
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*/
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add: function (event, callback)
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{
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$_.each(function(e){
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_add_remove(e, event, callback, true);
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});
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},
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/**
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* Removes an event bound the the specified selector, event type, and callback
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*
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* @memberOf $_.event
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* @name remove
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* @function
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* @example Eg. $_("#selector").event.remove("click", do_something());
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* @param string event
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* @param string callback
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*/
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remove: function (event, callback)
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{
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$_.each(function(e){
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_add_remove(e, event, callback, false);
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});
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},
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/**
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* Binds a persistent event to the document
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*
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* @memberOf $_.event
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* @name live
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* @function
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* @example Eg. $_.event.live(".button", "click", do_something());
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* @param string target
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* @param string event
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* @param function callback
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*/
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live: function (target, event, callback)
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{
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_attach_delegate(document.documentElement, target, event, callback);
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},
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/**
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* Binds an event to a parent object
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*
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* @memberOf $_.event
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* @name delegate
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* @function
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* @example Eg. $_("#parent").delegate(".button", "click", do_something());
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* @param string target
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* @param string event_type
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* @param function callback
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*/
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delegate: function (target, event, callback)
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{
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$_.each(function(e){
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_attach_delegate(e, target, event, callback);
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});
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}
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};
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$_.ext('event', e);
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}());
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