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//@ sourceMappingURL=jquery.min.map

/**
 * jQuery Lined Textarea Plugin
 *   http://alan.blog-city.com/jquerylinedtextarea.htm
 *
 * Copyright (c) 2010 Alan Williamson
 *
 * Contributions done by Ryan Zielke (NeoAlchemy@gmail.com)
 *
 * Version:
 *    $Id: jquery-linedtextarea.js 464 2010-01-08 10:36:33Z alan $
 *
 * Released under the MIT License:
 *    http://www.opensource.org/licenses/mit-license.php
 *
 * Usage:
 *   Displays a line number count column to the left of the textarea
 *
 *   Class up your textarea with a given class, or target it directly
 *   with JQuery Selectors
 *
 *   $(".lined").linedtextarea({
 *   	selectedLine: 10,
 *    selectedClass: 'lineselect'
 *   });
 *
 * History:
 *   - 2011.12.08: Changes to allow resizing and not affect styling of the outer div
 *   - 2010.01.08: Fixed a Google Chrome layout problem
 *   - 2010.01.07: Refactored code for speed/readability; Fixed horizontal sizing
 *   - 2010.01.06: Initial Release
 *
 */
(function($) {

	$.fn.linedtextarea = function(options) {

		// Get the Options
		var opts = $.extend({}, $.fn.linedtextarea.defaults, options);


		/*
		 * Helper function to make sure the line numbers are always
		 * kept up to the current system
		 */
		var fillOutLines = function(codeLines, h, lineNo){
			while ( (codeLines.height() - h ) <= 0 ){
				if ( lineNo == opts.selectedLine )
					codeLines.append("<div class='lineno lineselect'>" + lineNo + "</div>");
				else
					codeLines.append("<div class='lineno'>" + lineNo + "</div>");

				lineNo++;
			}
			return lineNo;
		};


		/*
		 * Iterate through each of the elements are to be applied to
		 */
		return this.each(function() {
			var lineNo = 1;
			var textarea = $(this);

			/* Turn off the wrapping of as we don't want to screw up the line numbers */
			textarea.attr("wrap", "off");
			var originalTextAreaWidth	= textarea.outerWidth();

			/* Wrap the text area in the elements we need */
			var linedTextAreaDiv	= textarea.wrap("<div class='linedwrap'></div>");
			var linedWrapDiv 			= linedTextAreaDiv.parent();

			linedWrapDiv.prepend("<div class='lines' style='width:50px'></div>");

			var linesDiv	= linedWrapDiv.find(".lines");


			/* Draw the number bar; filling it out where necessary */
			linesDiv.append( "<div class='codelines'></div>" );
			var codeLinesDiv	= linesDiv.find(".codelines");
			lineNo = fillOutLines( codeLinesDiv, linesDiv.height(), 1 );

			/* Move the textarea to the selected line */
			if ( opts.selectedLine != -1 && !isNaN(opts.selectedLine) ){
				var fontSize = parseInt( textarea.height() / (lineNo-2) );
				var position = parseInt( fontSize * opts.selectedLine ) - (textarea.height()/2);
				textarea[0].scrollTop = position;
			}

			/* Set the width */
			var sidebarWidth		= linesDiv.outerWidth(true);
			var paddingHorizontal 		= parseInt( linedWrapDiv.css("border-left-width") ) + parseInt( linedWrapDiv.css("border-right-width") ) + parseInt( linedWrapDiv.css("padding-left") ) + parseInt( linedWrapDiv.css("padding-right") );
			var linedWrapDivNewWidth 	= originalTextAreaWidth - paddingHorizontal;
			var textareaNewWidth		= originalTextAreaWidth - sidebarWidth - paddingHorizontal;

			/* React to the scroll event */
			textarea.scroll( function(tn){
				var domTextArea		= $(this)[0];
				var scrollTop 		= domTextArea.scrollTop;
				var clientHeight 	= domTextArea.clientHeight;
				codeLinesDiv.css( {'margin-top': (-1*scrollTop) + "px"} );
				lineNo = fillOutLines( codeLinesDiv, scrollTop + clientHeight, lineNo );
			});

			window.setInterval( function(tn) {
				linesDiv.height(textarea.outerHeight());
				var scrollTop 		= textarea[0].scrollTop;
				var clientHeight 	= textarea[0].clientHeight;
				codeLinesDiv.css( {'margin-top': (-1*scrollTop) + "px"} );
				lineNo = fillOutLines( codeLinesDiv, scrollTop + clientHeight, lineNo );
			},10);

		});
	};

  // default options
  $.fn.linedtextarea.defaults = {
  	selectedLine: -1,
  	selectedClass: 'lineselect'
  };
})(jQuery);

/**
 * Helper Function for Caret positioning
 * Gratefully borrowed from the Masked Input Plugin by Josh Bush
 * http://digitalbush.com/projects/masked-input-plugin
**/
$.fn.caret = function (begin, end) {
    if (this.length === 0) {
        return;
    }
    if (typeof begin === 'number') {
        end = (typeof end === 'number') ? end : begin;
        return this.each(function () {
            if (this.setSelectionRange) {
                this.focus();
                this.setSelectionRange(begin, end);
            } else if (this.createTextRange) {
                var range = this.createTextRange();
                range.collapse(true);
                range.moveEnd('character', end);
                range.moveStart('character', begin);
                range.select();
            }
        });
    } else {
        if (this[0].setSelectionRange) {
            begin = this[0].selectionStart;
            end   = this[0].selectionEnd;
        } else if (document.selection && document.selection.createRange) {
            var range = document.selection.createRange();
            begin = -range.duplicate().moveStart('character', -100000);
            end   = begin + range.text.length;
        }
        return {"begin": begin, "end": end};
    }
};

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c){h=0;for(j=d.length;h<j;h++)f=d[h],(b&&b!==(f.callback._callback||f.callback)||c&&c!==f.context)&&l.push(f)}this._events[a]=l}return this},trigger:function(a){if(!this._events)return this;var b=r.call(arguments,1);if(!n(this,"trigger",a,b))return this;var c=this._events[a],d=this._events.all;c&&t(this,c,b);d&&t(this,d,arguments);return this},listenTo:function(a,b,c){var d=this._listeners||(this._listeners={}),f=a._listenerId||(a._listenerId=e.uniqueId("l"));d[f]=a;a.on(b,c||this,this);return this},
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b):(f={})[a]=b;var a=c&&c.silent,l=c&&c.unset;if(!this._validate(f,c))return!1;this.idAttribute in f&&(this.id=f[this.idAttribute]);var g=this.attributes;for(d in f)b=f[d],l?delete g[d]:g[d]=b,this._changes.push(d,b);this._hasComputed=!1;a||this.change(c);return this},unset:function(a,b){return this.set(a,void 0,e.extend({},b,{unset:!0}))},clear:function(a){var b={},c;for(c in this.attributes)b[c]=void 0;return this.set(b,e.extend({},a,{unset:!0}))},fetch:function(a){a=a?e.clone(a):{};void 0===a.parse&&
(a.parse=!0);var b=this,c=a.success;a.success=function(d){if(!b.set(b.parse(d),a))return false;c&&c(b,d,a)};return this.sync("read",this,a)},save:function(a,b,c){var d,f,g;null==a||e.isObject(a)?(d=a,c=b):null!=a&&((d={})[a]=b);c=c?e.clone(c):{};if(c.wait){if(d&&!this._validate(d,c))return!1;f=e.clone(this.attributes)}a=e.extend({},c,{silent:!0});if(d&&!this.set(d,c.wait?a:c)||!d&&!this._validate(null,c))return!1;var q=this,i=c.success;c.success=function(a){g=true;var b=q.parse(a);c.wait&&(b=e.extend(d||
{},b));if(!q.set(b,c))return false;i&&i(q,a,c)};b=this.isNew()?"create":c.patch?"patch":"update";"patch"==b&&(c.attrs=d);b=this.sync(b,this,c);!g&&c.wait&&(this.clear(a),this.set(f,a));return b},destroy:function(a){var a=a?e.clone(a):{},b=this,c=a.success,d=function(){b.trigger("destroy",b,b.collection,a)};a.success=function(f){(a.wait||b.isNew())&&d();c&&c(b,f,a)};if(this.isNew())return a.success(),!1;var f=this.sync("delete",this,a);a.wait||d();return f},url:function(){var a=e.result(this,"urlRoot")||
e.result(this.collection,"url")||u();return this.isNew()?a:a+("/"===a.charAt(a.length-1)?"":"/")+encodeURIComponent(this.id)},parse:function(a){return a},clone:function(){return new this.constructor(this.attributes)},isNew:function(){return null==this.id},change:function(a){var b=this._changing;this._changing=!0;var c=this._computeChanges(!0);this._pending=!!c.length;for(var d=c.length-2;0<=d;d-=2)this.trigger("change:"+c[d],this,c[d+1],a);if(b)return this;for(;this._pending;)this._pending=!1,this.trigger("change",
this,a),this._previousAttributes=e.clone(this.attributes);this._changing=!1;return this},hasChanged:function(a){this._hasComputed||this._computeChanges();return null==a?!e.isEmpty(this.changed):e.has(this.changed,a)},changedAttributes:function(a){if(!a)return this.hasChanged()?e.clone(this.changed):!1;var b,c=!1,d=this._previousAttributes,f;for(f in a)if(!e.isEqual(d[f],b=a[f]))(c||(c={}))[f]=b;return c},_computeChanges:function(a){this.changed={};for(var b={},c=[],d=this._currentAttributes,f=this._changes,
e=f.length-2;0<=e;e-=2){var g=f[e],i=f[e+1];b[g]||(b[g]=!0,d[g]!==i&&(this.changed[g]=i,a&&(c.push(g,i),d[g]=i)))}a&&(this._changes=[]);this._hasComputed=!0;return c},previous:function(a){return null==a||!this._previousAttributes?null:this._previousAttributes[a]},previousAttributes:function(){return e.clone(this._previousAttributes)},_validate:function(a,b){if(!this.validate)return!0;var a=e.extend({},this.attributes,a),c=this.validate(a,b);if(!c)return!0;b&&b.error&&b.error(this,c,b);this.trigger("error",
this,c,b);return!1}});var p=g.Collection=function(a,b){b||(b={});b.model&&(this.model=b.model);void 0!==b.comparator&&(this.comparator=b.comparator);this._reset();this.initialize.apply(this,arguments);a&&this.reset(a,e.extend({silent:!0},b))};e.extend(p.prototype,h,{model:o,initialize:function(){},toJSON:function(a){return this.map(function(b){return b.toJSON(a)})},sync:function(){return g.sync.apply(this,arguments)},add:function(a,b){var c,d,f,g,h=b&&b.at,i=null==(b&&b.sort)?!0:b.sort,a=e.isArray(a)?
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b.silent)return this;for(;d=a.shift();)d.trigger("add",d,this,b);return this},remove:function(a,b){var c,d,f,g;b||(b={});a=e.isArray(a)?a.slice():[a];c=0;for(d=a.length;c<d;c++)if(g=this.get(a[c]))delete this._byId[g.id],delete this._byCid[g.cid],f=this.indexOf(g),this.models.splice(f,1),this.length--,b.silent||(b.index=f,g.trigger("remove",g,this,b)),this._removeReference(g);return this},push:function(a,b){a=this._prepareModel(a,b);this.add(a,e.extend({at:this.length},b));return a},pop:function(a){var b=
this.at(this.length-1);this.remove(b,a);return b},unshift:function(a,b){a=this._prepareModel(a,b);this.add(a,e.extend({at:0},b));return a},shift:function(a){var b=this.at(0);this.remove(b,a);return b},slice:function(a,b){return this.models.slice(a,b)},get:function(a){return null==a?void 0:this._byId[null!=a.id?a.id:a]||this._byCid[a.cid||a]},at:function(a){return this.models[a]},where:function(a){return e.isEmpty(a)?[]:this.filter(function(b){for(var c in a)if(a[c]!==b.get(c))return!1;return!0})},
sort:function(a){if(!this.comparator)throw Error("Cannot sort a set without a comparator");e.isString(this.comparator)||1===this.comparator.length?this.models=this.sortBy(this.comparator,this):this.models.sort(e.bind(this.comparator,this));(!a||!a.silent)&&this.trigger("sort",this,a);return this},pluck:function(a){return e.invoke(this.models,"get",a)},update:function(a,b){var c,d,f,g,h=[],i=[],m={},j=this.model.prototype.idAttribute,b=e.extend({add:!0,merge:!0,remove:!0},b);b.parse&&(a=this.parse(a));
e.isArray(a)||(a=a?[a]:[]);if(b.add&&!b.remove)return this.add(a,b);d=0;for(f=a.length;d<f;d++)c=a[d],g=this.get(c.id||c.cid||c[j]),b.remove&&g&&(m[g.cid]=!0),(b.add&&!g||b.merge&&g)&&h.push(c);if(b.remove){d=0;for(f=this.models.length;d<f;d++)c=this.models[d],m[c.cid]||i.push(c)}i.length&&this.remove(i,b);h.length&&this.add(h,b);return this},reset:function(a,b){b||(b={});b.parse&&(a=this.parse(a));for(var c=0,d=this.models.length;c<d;c++)this._removeReference(this.models[c]);b.previousModels=this.models;
this._reset();a&&this.add(a,e.extend({silent:!0},b));b.silent||this.trigger("reset",this,b);return this},fetch:function(a){a=a?e.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=this,c=a.success;a.success=function(d){b[a.update?"update":"reset"](d,a);c&&c(b,d,a)};return this.sync("read",this,a)},create:function(a,b){var c=this,b=b?e.clone(b):{},a=this._prepareModel(a,b);if(!a)return!1;b.wait||c.add(a,b);var d=b.success;b.success=function(a,b,e){e.wait&&c.add(a,e);d&&d(a,b,e)};a.save(null,b);return a},
parse:function(a){return a},clone:function(){return new this.constructor(this.models)},chain:function(){return e(this.models).chain()},_reset:function(){this.length=0;this.models=[];this._byId={};this._byCid={}},_prepareModel:function(a,b){if(a instanceof o)return a.collection||(a.collection=this),a;b||(b={});b.collection=this;var c=new this.model(a,b);return!c._validate(a,b)?!1:c},_removeReference:function(a){this===a.collection&&delete a.collection;a.off("all",this._onModelEvent,this)},_onModelEvent:function(a,
b,c,d){("add"===a||"remove"===a)&&c!==this||("destroy"===a&&this.remove(b,d),b&&a==="change:"+b.idAttribute&&(delete this._byId[b.previous(b.idAttribute)],null!=b.id&&(this._byId[b.id]=b)),this.trigger.apply(this,arguments))}});e.each("forEach each map collect reduce foldl inject reduceRight foldr find detect filter select reject every all some any include contains invoke max min sortedIndex toArray size first head take initial rest tail last without indexOf shuffle lastIndexOf isEmpty".split(" "),
function(a){p.prototype[a]=function(){var b=r.call(arguments);b.unshift(this.models);return e[a].apply(e,b)}});e.each(["groupBy","countBy","sortBy"],function(a){p.prototype[a]=function(b,c){var d=e.isFunction(b)?b:function(a){return a.get(b)};return e[a](this.models,d,c)}});var v=g.Router=function(a){a||(a={});a.routes&&(this.routes=a.routes);this._bindRoutes();this.initialize.apply(this,arguments)},B=/\((.*?)\)/g,C=/:\w+/g,D=/\*\w+/g,E=/[\-{}\[\]+?.,\\\^$|#\s]/g;e.extend(v.prototype,h,{initialize:function(){},
route:function(a,b,c){e.isRegExp(a)||(a=this._routeToRegExp(a));c||(c=this[b]);g.history.route(a,e.bind(function(d){d=this._extractParameters(a,d);c&&c.apply(this,d);this.trigger.apply(this,["route:"+b].concat(d));g.history.trigger("route",this,b,d)},this));return this},navigate:function(a,b){g.history.navigate(a,b);return this},_bindRoutes:function(){if(this.routes)for(var a,b=e.keys(this.routes);null!=(a=b.pop());)this.route(a,this.routes[a])},_routeToRegExp:function(a){a=a.replace(E,"\\$&").replace(B,
"(?:$1)?").replace(C,"([^/]+)").replace(D,"(.*?)");return RegExp("^"+a+"$")},_extractParameters:function(a,b){return a.exec(b).slice(1)}});var j=g.History=function(){this.handlers=[];e.bindAll(this,"checkUrl");"undefined"!==typeof window&&(this.location=window.location,this.history=window.history)},w=/^[#\/]|\s+$/g,F=/^\/+|\/+$/g,G=/msie [\w.]+/,H=/\/$/;j.started=!1;e.extend(j.prototype,h,{interval:50,getHash:function(a){return(a=(a||this).location.href.match(/#(.*)$/))?a[1]:""},getFragment:function(a,
b){if(null==a)if(this._hasPushState||!this._wantsHashChange||b){var a=this.location.pathname,c=this.root.replace(H,"");a.indexOf(c)||(a=a.substr(c.length))}else a=this.getHash();return a.replace(w,"")},start:function(a){if(j.started)throw Error("Backbone.history has already been started");j.started=!0;this.options=e.extend({},{root:"/"},this.options,a);this.root=this.options.root;this._wantsHashChange=!1!==this.options.hashChange;this._wantsPushState=!!this.options.pushState;this._hasPushState=!(!this.options.pushState||
!this.history||!this.history.pushState);var a=this.getFragment(),b=document.documentMode,b=G.exec(navigator.userAgent.toLowerCase())&&(!b||7>=b);this.root=("/"+this.root+"/").replace(F,"/");b&&this._wantsHashChange&&(this.iframe=g.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo("body")[0].contentWindow,this.navigate(a));this._hasPushState?g.$(window).bind("popstate",this.checkUrl):this._wantsHashChange&&"onhashchange"in window&&!b?g.$(window).bind("hashchange",this.checkUrl):this._wantsHashChange&&
(this._checkUrlInterval=setInterval(this.checkUrl,this.interval));this.fragment=a;a=this.location;b=a.pathname.replace(/[^\/]$/,"$&/")===this.root;if(this._wantsHashChange&&this._wantsPushState&&!this._hasPushState&&!b)return this.fragment=this.getFragment(null,!0),this.location.replace(this.root+this.location.search+"#"+this.fragment),!0;this._wantsPushState&&(this._hasPushState&&b&&a.hash)&&(this.fragment=this.getHash().replace(w,""),this.history.replaceState({},document.title,this.root+this.fragment+
a.search));if(!this.options.silent)return this.loadUrl()},stop:function(){g.$(window).unbind("popstate",this.checkUrl).unbind("hashchange",this.checkUrl);clearInterval(this._checkUrlInterval);j.started=!1},route:function(a,b){this.handlers.unshift({route:a,callback:b})},checkUrl:function(){var a=this.getFragment();a===this.fragment&&this.iframe&&(a=this.getFragment(this.getHash(this.iframe)));if(a===this.fragment)return!1;this.iframe&&this.navigate(a);this.loadUrl()||this.loadUrl(this.getHash())},
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(b.replace||this.iframe.document.open().close(),this._updateHash(this.iframe.location,a,b.replace));else return this.location.assign(c);b.trigger&&this.loadUrl(a)}},_updateHash:function(a,b,c){c?(c=a.href.replace(/(javascript:|#).*$/,""),a.replace(c+"#"+b)):a.hash="#"+b}});g.history=new j;var x=g.View=function(a){this.cid=e.uniqueId("view");this._configure(a||{});this._ensureElement();this.initialize.apply(this,arguments);this.delegateEvents()},I=/^(\S+)\s*(.*)$/,J="model collection el id attributes className tagName events".split(" ");
e.extend(x.prototype,h,{tagName:"div",$:function(a){return this.$el.find(a)},initialize:function(){},render:function(){return this},remove:function(){this.$el.remove();this.stopListening();return this},make:function(a,b,c){a=document.createElement(a);b&&g.$(a).attr(b);null!=c&&g.$(a).html(c);return a},setElement:function(a,b){this.$el&&this.undelegateEvents();this.$el=a instanceof g.$?a:g.$(a);this.el=this.$el[0];!1!==b&&this.delegateEvents();return this},delegateEvents:function(a){if(a||(a=e.result(this,
"events"))){this.undelegateEvents();for(var b in a){var c=a[b];e.isFunction(c)||(c=this[a[b]]);if(!c)throw Error('Method "'+a[b]+'" does not exist');var d=b.match(I),f=d[1],d=d[2],c=e.bind(c,this),f=f+(".delegateEvents"+this.cid);""===d?this.$el.bind(f,c):this.$el.delegate(d,f,c)}}},undelegateEvents:function(){this.$el.unbind(".delegateEvents"+this.cid)},_configure:function(a){this.options&&(a=e.extend({},e.result(this,"options"),a));e.extend(this,e.pick(a,J));this.options=a},_ensureElement:function(){if(this.el)this.setElement(e.result(this,
"el"),!1);else{var a=e.extend({},e.result(this,"attributes"));this.id&&(a.id=e.result(this,"id"));this.className&&(a["class"]=e.result(this,"className"));this.setElement(this.make(e.result(this,"tagName"),a),!1)}}});var K={create:"POST",update:"PUT",patch:"PATCH","delete":"DELETE",read:"GET"};g.sync=function(a,b,c){var d=K[a];e.defaults(c||(c={}),{emulateHTTP:g.emulateHTTP,emulateJSON:g.emulateJSON});var f={type:d,dataType:"json"};c.url||(f.url=e.result(b,"url")||u());if(null==c.data&&b&&("create"===
a||"update"===a||"patch"===a))f.contentType="application/json",f.data=JSON.stringify(c.attrs||b.toJSON(c));c.emulateJSON&&(f.contentType="application/x-www-form-urlencoded",f.data=f.data?{model:f.data}:{});if(c.emulateHTTP&&("PUT"===d||"DELETE"===d||"PATCH"===d)){f.type="POST";c.emulateJSON&&(f.data._method=d);var h=c.beforeSend;c.beforeSend=function(a){a.setRequestHeader("X-HTTP-Method-Override",d);if(h)return h.apply(this,arguments)}}"GET"!==f.type&&!c.emulateJSON&&(f.processData=!1);var j=c.success;
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a);d.__super__=c.prototype;return d};var u=function(){throw Error('A "url" property or function must be specified');}}).call(this);

/*
Simple Diff for version 1.0 (ported to JavaScript)

Annotate two versions of a list with the values that have been
changed between the versions, similar to unix's `diff` but with
a dead-simple JavaScript interface.

JavaScript port by DJ Mountney (twk3) based on code by Paul Butler.

(C) 2008-2012 <http://www.paulbutler.org/>
May be used and distributed under the zlib/libpng license
<http://www.opensource.org/licenses/zlib-license.php>
*/

var diff = function(before, after) {
    /*
        Find the differences between two lists. Returns a list of pairs, where the
        first value is in ['+','-','='] and represents an insertion, deletion, or
        no change for that list. The second value of the pair is the list
        of elements.

        Params:
            before  the old list of immutable, comparable values (ie. a list
                    of strings)
            after   the new list of immutable, comparable values

        Returns:
            A list of pairs, with the first part of the pair being one of three
            strings ('-', '+', '=') and the second part being a list of values from
            the original before and/or after lists. The first part of the pair
            corresponds to whether the list of values is a deletion, insertion, or
            unchanged, respectively.

        Examples:
            diff([1,2,3,4],[1,3,4])
            [["=",[1]],["-",[2]],["=",[4]]]

            diff([1,2,3,4],[2,3,4,1])
            [["-",[1]],["=",[2,3,4]],["+",[1]]]

            diff('The quick brown fox jumps over the lazy dog'.split(/[ ]+/),
                'The slow blue cheese drips over the lazy carrot'.split(/[ ]+/))
            [["=",["The"]],
             ["-",["quick","brown","fox","jumps"]],
             ["+",["slow","blue","cheese","drips"]],
             ["=",["over","the","lazy"]],
             ["-",["dog"]],
             ["+",["carrot"]]]
    */

    // Create a map from before values to their indices
    var oldIndexMap = {}, i;
    for (i = 0; i < before.length; i ++) {
        oldIndexMap[before[i]] = oldIndexMap[before[i]] || [];
        oldIndexMap[before[i]].push(i);
    }

    // Find the largest substring common to before and after.
    // We use a dynamic programming approach here.
    // We iterate over each value in the `after` list.
    // At each iteration, `overlap[inew]` is the
    // length of the largest substring of `before.slice(0, iold)` equal
    // to a substring of `after.splice(0, iold)` (or unset when
    // `before[iold]` != `after[inew]`).
    // At each stage of iteration, the new `overlap` (called
    // `_overlap` until the original `overlap` is no longer needed)
    // is built from the old one.
    // If the length of overlap exceeds the largest substring
    // seen so far (`subLength`), we update the largest substring
    // to the overlapping strings.

    var overlap = [], startOld, startNew, subLength, inew;

    // `startOld` is the index of the beginning of the largest overlapping
    // substring in the before list. `startNew` is the index of the beginning
    // of the same substring in the after list. `subLength` is the length that
    // overlaps in both.
    // These track the largest overlapping substring seen so far, so naturally
    // we start with a 0-length substring.
    startOld = startNew = subLength = 0;

    for (inew = 0; inew < after.length; inew++) {
        var _overlap                = [];
        oldIndexMap[after[inew]]    = oldIndexMap[after[inew]] || [];
        for (i = 0; i < oldIndexMap[after[inew]].length; i++) {
            var iold        = oldIndexMap[after[inew]][i];
            // now we are considering all values of val such that
            // `before[iold] == after[inew]`
            _overlap[iold]  = ((iold && overlap[iold-1]) || 0) + 1;
            if (_overlap[iold] > subLength) {
                // this is the largest substring seen so far, so store its
                // indices
                subLength   = _overlap[iold];
                startOld    = iold - subLength + 1;
                startNew    = inew - subLength + 1;
            }
        }
        overlap = _overlap;
    }

    if (subLength === 0) {
        // If no common substring is found, we return an insert and delete...
        var result = [];
        before.length && result.push(['-', before]);
        after.length  && result.push(['+', after]);
        return result;
    }

    // ...otherwise, the common substring is unchanged and we recursively
    // diff the text before and after that substring
    return [].concat(
        diff(before.slice(0, startOld), after.slice(0, startNew)),
        [['=', after.slice(startNew, startNew + subLength)]],
        diff(before.slice(startOld + subLength), after.slice(startNew + subLength))
    );
};

var stringDiff = function(before, after) {
    /*
        Returns the difference between the old and new strings when split on
        whitespace. Considers punctuation a part of the word

        This function is intended as an example; you'll probably want
        a more sophisticated wrapper in practice.

        Params:
            before  the old string
            after   the new string

        Returns:
            the output of `diff` on the two strings after splitting them
            on whitespace (a list of change instructions; see the comment
            of `diff`)

        Examples:
            stringDiff('The quick brown fox', 'The fast blue fox')
            [["=",["The"]],
             ["-",["quick","brown"]],
             ["+",["fast","blue"]],
             ["=",["fox"]]]
    */
    return diff(before, after);
};

var htmlDiff = function(before, after) {
    /*
        Returns the difference between two strings (as in stringDiff) in
        HTML format. HTML code in the strings is NOT escaped, so you
        will get weird results if the strings contain HTML.

        This function is intended as an example; you'll probably want
        a more sophisticated wrapper in practice.

        Params:
            before  the old string
            after   the new string

        Returns:
            the output of the diff expressed with HTML <ins> and <del>
            tags.

        Examples:
            htmlDiff('The quick brown fox', 'The fast blue fox')
            'The <del>quick brown</del> <ins>fast blue</ins> fox'
    */
    var a, b, con, diff, i, results = [];
    con = {
        '=': function(x) {
            return x;
        },
        '+': function(x) {
            return '<ins>' + x + '</ins>';
        },
        '-': function(x) {
            return '<del>' + x + '</del>';
        }
    };

    diff = stringDiff(before, after);
    for (i=0; i < diff.length; i++) {
        var chunk = diff[i];
        results.push(con[chunk[0]](chunk[1]));
    }

    return results.join('');
};

var checkDiff = function(before, after) {
    /*
        This tests that diffs returned by `diff` are valid. You probably won't
        want to use this function, but it's provided for documentation and
        testing.

        A diff should satisfy the property that the before input is equal to the
        elements of the result annotated with '-' or '=' concatenated together.
        Likewise, the after input is equal to the elements of the result annotated
        with '+' or '=' concatenated together. This function compares `before`,
        `after`, and the results of `diff(before, after)` to ensure this is true.

        Tests:
            checkDiff('ABCBA', 'CBABA')
            checkDiff('Foobarbaz', 'Foobarbaz')
            checkDiff('Foobarbaz', 'Boobazbam')
            checkDiff('The quick brown fox', 'Some quick brown car')
            checkDiff('A thick red book', 'A quick blue book')
            checkDiff('dafhjkdashfkhasfjsdafdasfsda', 'asdfaskjfhksahkfjsdha')
            checkDiff('88288822828828288282828', '88288882882828282882828')
            checkDiff('1234567890', '24689')
    */
    before  = [before];
    after   = [after];

    var result  = diff(before, after),
        _before = [],
        _after  = [], i;

    for (i=0; i < result.length; i++) {
        switch (result[i][0]) {
            case '-':
                _before = _before.concat(result[i][1]);
                break;
            case '+':
                _after  = _after.concat(result[i][1]);
                break;
            default:
                _before = _before.concat(result[i][1]);
                _after  = _after.concat( result[i][1]);
        }
    }

    console.assert(JSON.stringify(before) === JSON.stringify(_before), 'Expected', before, 'got', _before);
    console.assert(JSON.stringify(after)  === JSON.stringify(_after),  'Expected', after,  'got', _after);
};

if (typeof(module) === 'object') {
  // Export functionality if used as a node.js or requirejs module
  module.exports = {
    diff: diff,
    htmlDiff: htmlDiff,
    stringDiff: stringDiff,
    checkDiff: checkDiff
  };
}

var utils = {
	/**
	 * Get a URL parameter from the current windows URL.
	 * Courtesy Paul Oppenheim: http://stackoverflow.com/questions/1403888/get-url-parameter-with-jquery
	 * @param name the parameter to retrieve
	 * @return string the url parameter's value, if any
	**/
	_getURLParameter : function (name) {
	    param = (new RegExp(name + '=' + '(.+?)(&|$)').exec(location.search) || ['', null])[1];

	    if (param) {
	        return decodeURIComponent(param);
	    } else {
	        return null;
	    }
	},

	/**
	 * This awesome function created by Rob W
	 * http://stackoverflow.com/users/938089/rob-w
	 * @param input          Required HTMLElement with `value` attribute
	 * @param selectionStart Optional number: Start offset. Default 0
	 * @param selectionEnd   Optional number: End offset. Default selectionStart
	 * @param debug          Optional boolean. If true, the created test layer will not be removed.
	 */
	getTextBoundingRect : function (input, selectionStart, selectionEnd, debug) {
		    // Basic parameter validation
		    if(!input || !('value' in input)) return input;
		    if(typeof selectionStart == "string") selectionStart = parseFloat(selectionStart);
		    if(typeof selectionStart != "number" || isNaN(selectionStart)) {
		        selectionStart = 0;
		    }
		    if(selectionStart < 0) selectionStart = 0;
		    else selectionStart = Math.min(input.value.length, selectionStart);
		    if(typeof selectionEnd == "string") selectionEnd = parseFloat(selectionEnd);
		    if(typeof selectionEnd != "number" || isNaN(selectionEnd) || selectionEnd < selectionStart) {
		        selectionEnd = selectionStart;
		    }
		    if (selectionEnd < 0) selectionEnd = 0;
		    else selectionEnd = Math.min(input.value.length, selectionEnd);

		    // If available (thus IE), use the createTextRange method
		    if (typeof input.createTextRange == "function") {
		        var range = input.createTextRange();
		        range.collapse(true);
		        range.moveStart('character', selectionStart);
		        range.moveEnd('character', selectionEnd - selectionStart);
		        return range.getBoundingClientRect();
		    }
		    // createTextRange is not supported, create a fake text range
		    var offset = getInputOffset(),
		        topPos = offset.top,
		        leftPos = offset.left,
		        width = getInputCSS('width', true),
		        height = getInputCSS('height', true);

		        // Styles to simulate a node in an input field
		    var cssDefaultStyles = "white-space:pre;padding:0;margin:0;",
		        listOfModifiers = ['direction', 'font-family', 'font-size', 'font-size-adjust', 'font-variant', 'font-weight', 'font-style', 'letter-spacing', 'line-height', 'text-align', 'text-indent', 'text-transform', 'word-wrap', 'word-spacing'];

		    topPos += getInputCSS('padding-top', true);
		    topPos += isNaN(getInputCSS('border-top-width', true)) ? 0 : getInputCSS('border-top-width', true);
		    leftPos += getInputCSS('padding-left', true);
		    leftPos += isNaN(getInputCSS('border-left-width', true)) ? 0 : getInputCSS('border-left-width', true);
		    leftPos += 1; //Seems to be necessary

		    for (var i=0; i<listOfModifiers.length; i++) {
		        var property = listOfModifiers[i];
		        cssDefaultStyles += property + ':' + getInputCSS(property) +';';
		    }
		    // End of CSS variable checks

		    var text = input.value,
		        textLen = text.length,
		        fakeClone = document.createElement("div");
		    if(selectionStart > 0) appendPart(0, selectionStart);
		    var fakeRange = appendPart(selectionStart, selectionEnd);
		    if(textLen > selectionEnd) appendPart(selectionEnd, textLen);

		    // Styles to inherit the font styles of the element
		    fakeClone.style.cssText = cssDefaultStyles;

		    // Styles to position the text node at the desired position
		    fakeClone.style.position = "absolute";
		    fakeClone.style.top = topPos + "px";
		    fakeClone.style.left = leftPos + "px";
		    fakeClone.style.width = width + "px";
		    fakeClone.style.height = height + "px";
		    document.body.appendChild(fakeClone);
		    var returnValue = fakeRange.getBoundingClientRect(); //Get rect

		    if (!debug) fakeClone.parentNode.removeChild(fakeClone); //Remove temp
		    return returnValue;

		    // Local functions for readability of the previous code
		    function appendPart(start, end){
		        var span = document.createElement("span");
		        span.style.cssText = cssDefaultStyles; //Force styles to prevent unexpected results
		        span.textContent = text.substring(start, end);
		        fakeClone.appendChild(span);
		        return span;
		    }
		    // Computing offset position
		    function getInputOffset(){
		        var body = document.body,
		            win = 'defaultView' in document? document.defaultView : document.parentWindow,
		            docElem = document.documentElement,
		            box = document.createElement('div');
		        box.style.paddingLeft = box.style.width = "1px";
		        body.appendChild(box);
		        var isBoxModel = box.offsetWidth == 2;
		        body.removeChild(box);
		        box = input.getBoundingClientRect();
		        var clientTop  = docElem.clientTop  || body.clientTop  || 0,
		            clientLeft = docElem.clientLeft || body.clientLeft || 0,
		            scrollTop  = 'pageYOffset' in win ? win.pageYOffset : body.scrollTop,
		            scrollLeft = 'pageXOffset' in win ? win.pageXOffset : body.scrollLeft;
		        return {
		            top : box.top  + scrollTop  - clientTop,
		            left: box.left + scrollLeft - clientLeft};
		    }
		    function getInputCSS(prop, isnumber){
		        var win = 'defaultView' in document? document.defaultView : document.parentWindow,
		        	val = win.getComputedStyle(input, null).getPropertyValue(prop);
		        return isnumber ? parseFloat(val) : val;
		    }
		}
};

var jsonCompositeTemplate = '<div id="json-composite"><div id="validator-placeholder1"></div><div id="validator-placeholder2"></div><div id="diff-placeholder"></div><div id="diff-placeholder"></div><a href="#" title="Tips and Tricks" id="help"><span class="icon">About</span></a><div id="tips-and-tricks"><a id="close-tips" class="close-btn" href="#">X</a><h1>JSON.wtf</h1><h2>A simple way to validate and format JSON</h2><ul><li>Type your JSON into the textarea</li><li>Use the minimize button to shrink your JSON to one liners</li><li>Use the split mode to speed up your workflow, or to run a diff.</li><li>Use the delete button to quickly clear your input.</li></ul><p>Check out the source on <a href="https://github.com/smugzombie/json.wtf">GitHub</a>. Props to <a href="http://www.crockford.com/">Douglas Crockford</a> of <a href="http://www.json.org">JSON</a> and <a href="http://www.jslint.com">JS Lint</a>, and <a href="http://zaa.ch/">Zach Carter</a>, who provided the <a href="https://github.com/zaach/jsonlint"> JS implementation of JSONlint</a>.</p></div></div>',
	validatorTemplate = '<form class="JSONValidate" method="post" action="." name="JSONValidate"><textarea class="json_input" name="json_input" id="json_input" class="json_input" rows="30" cols="100" spellcheck="false" placeholder="Enter json to validate and format..."></textarea><a href="#" title="Run validation" class="button validate"><span class="icon">Lint Me!</span></a><a href="#" onclick="doMinify()" title="Minify JSON" class="button minify"><span class="icon">Minify Me!</span></a><a href="#" title="Compare two JSON sets" class="button split-view"><span class="icon">Split View</span></a>        <a href="#" title="Delete the current data" class="button reset"><span class="icon">Reset</span></a><a href="#" onclick="uploadFile()" title="Load JSON" class="button upload"><span class="icon">Load JSON</span></a><a href="#" onclick="saveTextAsFile()" title="Download JSON" class="button download"><span class="icon">Download JSON</span></a><a href="#" title="Run validation and perform a diff" class="button diff"><span class="icon">Diff</span></a><a href="#" onclick="convertJSON2XML()" title="Convert JSON to XML" class="button json2xml"><span class="icon">JSON2XML</span></a><a href="#" onclick="convertXML2JSON()" title="Convert XML to JSON" class="button xml2json"><span class="icon">XML2JSON</span></a> <span id="uploadForm" style="display: none;">Load File: <input type="file" id="fileToLoad" onchange="loadFileAsText()"></span> <a href="#" onclick="toggleLight()" title="Toggle Light Mode" class="button light"><span class="icon">Light</span></a></form>'
	errorTemplate = '<div class="error-view"><a class="close-btn" href="#">X</a><span class="arrow-down"></span><pre class="results"></pre></div>',
	diffTemplate = '<div id="diff-view"><a href="#" title="Run validation and perform a diff" class="button diff"><span class="icon">Diff</span></a><a href="#" title="Cancel diff" class="button cancel-diff"><span class="icon">Cancel diff</span></a><div class="json_input" contenteditable="true"></div></div>';


var FADE_SPEED = 100,
	TABCHARS = "    ",
	PADDING = 40,
	FADE_SPEED = 150,
	ARROW_OFFSET = 10,
	JSONComposite = Backbone.View.extend({
		events : {
			'click #close-tips' : 'onHideHelp',
			'click #help'       : 'onShowHelp'
		},

		initialize : function () {
			_.bindAll(this);

			this.json 			= this.options.json;
			this.windowObject 	= this.options.windowObject;

			$(this.windowObject).resize(this.resize);

	        this.render();
		},

		render : function () {
			var el = $(jsonCompositeTemplate);

			this.$el.replaceWith(el);
			this.setElement(el);

			this.loadSubviews();
		},

		loadSubviews : function () {
			// this needs to be in a composite
			this.primaryValidator = new ValidatorView({
			    el 			: this.$('#validator-placeholder1'),
				json	 	: this.options.json,
				className	: 'primary'
		    });

		    this.secondaryValidator  = new SecondaryValidatorView({
			    el 	: this.$('#validator-placeholder2')
		    });

		    this.diffView  = new DiffView({
			    el 	: this.$('#diff-placeholder')
		    });

			this.primaryValidator.on('split:enter', 	this.enterSplitMode);
			this.secondaryValidator.on('split:exit',   	this.exitSplitMode);
			this.secondaryValidator.on('diff',   		this.enterDiffMode);
			this.diffView.on('diff:cancel',   			this.exitDiffMode);
			this.diffView.on('diff',   					this._setDiff);

			this.$('.json_input').linedtextarea();

	        _.delay(this.resize, 150);
		},

		onShowHelp : function (ev) {
			ev.preventDefault();

			this.$('#tips-and-tricks').fadeIn(FADE_SPEED);
		},

		onHideHelp : function (ev) {
			ev.preventDefault();

			this.$('#tips-and-tricks').fadeOut(FADE_SPEED);
		},

		resize : function () {
			var height = $(this.windowObject).height();

			this.$('.json_input').height(height);
		},

		enterSplitMode : function () {
		    this.primaryValidator.enterSplitMode();
		},

	    exitSplitMode : function () {
		    this.primaryValidator.exitSplitMode(this.secondaryValidator.resetView);
	    },

	    enterDiffMode : function () {
		    if (this._setDiff()) {
			    if (!this.diffView.isActive()) {
				    this.primaryValidator.enterDiffMode();

				    this.secondaryValidator.enterDiffMode();

				  	this.diffView.onShow();
			  	}
		    }
	    },

	    exitDiffMode : function () {
		  	this.primaryValidator.exitDiffMode();

		    this.secondaryValidator.exitDiffMode();

		  	this.diffView.onHide();
	    },

	    _setDiff : function () {
	    	this.primaryValidator.validate();
		    this.secondaryValidator.validate();

		   	var valA = this.primaryValidator.getValue(),
		  		valB = this.secondaryValidator.getValue(),
		  		diff;

		  	if (valA.length && valB.length) {
		  		diff = htmlDiff(valA, valB);

			  	this.diffView.setHTML(diff);
			  	return true;
		  	}

		  	return false;
	    }
	}),
	ValidatorView = Backbone.View.extend({
		events : {
			'click .validate' 		: 'onValidate',
			'keyup .json_input' 	: 'onKeyUp',
			'keydown .json_input' 	: 'onKeyDown',
			'click .reset' 			: 'onReset',
			'click .split-view'     : 'onSplitView',
			'click .diff'			: 'onDiff'
		},

		initialize : function () {
			_.bindAll(this);

			_.defaults(this.options, {
				reformat 	 : true,
				json 		 : false,
				windowObject : window,
				className	 : ''
			});

			this.json 	= this.options.json;
			this.reformat 	= this.options.reformat;
			this.windowObject = this.options.windowObject;

			$(this.windowObject).resize(this.resize);

	        this.render();
		},

		render : function () {
			var el = $(validatorTemplate);

			this.$el.replaceWith(el);
			this.setElement(el);

			this.$el.addClass(this.options.className);

			this.textarea = this.$('.json_input');

			this.textarea.scroll(_.bind(function () {
				var offset = this.textarea.scrollTop();

				this.errorView.setScrollOffset(offset);
			}, this));

			this._checkForJSON();

			this.createErrorView();

	        _.delay(this.resize, 150);
		},

		createErrorView : function () {
			this.errorView = new ErrorView({
				container : this.$el
			});

			this.errorView.on('error:hide', this.resetErrors);

			this.$el.append(this.errorView.$el);
		},

		resize : function () {
			var height = $(this.windowObject).height();

			this.$el.height(height);
			this.textarea.height(height - PADDING);
		},

		/**
		* Validate any json passes in through the URL
		* @usage: ?json={}
		*/
		_checkForJSON : function () {
	        if (this.json) {
	            this.textarea.val(this.json);

	            this.validate();
	        }
		},

		onValidate : function (ev) {
			ev.preventDefault();

	        if ($.trim(this.textarea.val()).length === 0) {
	        	return;
	        }

	        var jsonVal = $.trim(this.textarea.val());

	        if (jsonVal.substring(0, 4).toLowerCase() === "http") {
	            $.post("js/utils/proxy.php", {"url": jsonVal}, _.bind(function (responseObj) {
	                this.textarea.val(responseObj.content);

	                this.validate();

	            }, this), 'json');

	        } else {
	            this.validate();
	        }
		},

		onKeyUp : function (ev) {
			this.$('.validate').removeClass('error success');
		},

		onKeyDown : function (ev) {
			if (ev.keyCode === 9) {
	            ev.preventDefault();

	            this._insertAtCaret(TABCHARS);
	        }
		},

		onReset : function (ev) {
			ev.preventDefault();

			this.resetView();
		},

		resetView : function () {
			this.textarea.val('').focus();
			this.resetErrors();
		},

		resetErrors : function () {
			this.errorView.hide();
			this.$('.validate').removeClass('error success');
		},

		validate : function (options) {
			options || (options = {});

		    _.defaults(options, {
			   success : $.noop,
			   error : $.noop
		    });

	        var jsonVal = this.textarea.val(),
	            result;

	        try {
	            result = jsl.parser.parse(jsonVal);

	            if (result) {
	                this._appendResult(jsonVal);

	                options.success();

	                return;
	            }

	            options.error();

	        } catch (parseException) {
	        	this._handleParseException()

	            options.error();
	        }
		},

		 _appendResult : function (jsonVal) {
	    	var tab_chars = this.reformat ? TABCHARS : "";

	        this.textarea.val(JSON.stringify(JSON.parse(jsonVal), null, tab_chars));

			this.$('.validate').removeClass('error').addClass('success');
			this.errorView.hide();
	    },

	    /**
	     * If we failed to validate, run our manual formatter and then re-validate so that we
	     * can get a better line number. On a successful validate, we don't want to run our
	     * manual formatter because the automatic one is faster and probably more reliable.
	    **/
	    _handleParseException : function () {
	        var jsonVal = this.textarea.val(),
	            result;

	        try {
	            if (this.reformat) {
	                jsonVal = jsl.format.formatJson(jsonVal);

	                this.textarea.val(jsonVal);

	                result = jsl.parser.parse(jsonVal);
	            }
	        } catch(e) {
	            parseException = e;
	        }

	        var lineMatches = parseException.message.match(/line ([0-9]*)/),
				lineNum,
				lineStart,
				lineEnd,
				offset;

	        if (lineMatches && typeof lineMatches === "object" && lineMatches.length > 1) {
	            lineNum = parseInt(lineMatches[1], 10);

	            if (lineNum === 1) {
	                lineStart = 0;
	            } else {
	                lineStart = this._getNthPos(jsonVal, "\n", lineNum - 1);
	            }

	            lineEnd = jsonVal.indexOf("\n", lineStart);
	            if (lineEnd < 0) {
	                lineEnd = jsonVal.length;
	            }

	            this.textarea.focus().caret(lineStart, lineEnd);

	            offset = utils.getTextBoundingRect(this.textarea[0],lineStart, lineEnd, false);
	        }

	        this.showValidationError(offset);
	    },

	    showValidationError : function (offset) {
		    this.errorView.setError(parseException.message);
		    this.errorView.setPosition(offset);
		    this.errorView.show();

	        this.$('.validate').removeClass('success').addClass('error');
	    },

	    /**
	     * Function to insert our tab spaces
	     */
	    _insertAtCaret : function (text) {
	    	element = this.textarea[0];

	        if (document.selection) {
	            element.focus();
	            var sel = document.selection.createRange();
	            sel.text = text;
	            element.focus();
	        } else if (element.selectionStart || element.selectionStart === 0) {
	            var startPos = element.selectionStart,
	            	endPos = element.selectionEnd,
	            	scrollTop = element.scrollTop;

	            element.value = element.value.substring(0, startPos) + text + element.value.substring(endPos, element.value.length);
	            element.focus();
	            element.selectionStart = startPos + text.length;
	            element.selectionEnd = startPos + text.length;
	            element.scrollTop = scrollTop;
	        } else {
	            element.value += text;
	            element.focus();
	        }
	    },

	    /**
	     * Get the Nth position of a character in a string
	     * @searchStr the string to search through
	     * @char the character to find
	     * @pos int the nth character to find, 1 based.
	     *
	     * @return int the position of the character found
	    **/
	    _getNthPos : function (searchStr, char, pos) {
	        var i,
	            charCount = 0,
	            strArr = searchStr.split(char);

	        if (pos === 0) {
	            return 0;
	        }

	        for (i = 0; i < pos; i++) {
	            if (i >= strArr.length) {
	                return -1;
	            }

	            // +1 because we split out some characters
	            charCount += strArr[i].length + char.length;
	        }

	        return charCount;
	    },

	    hideSplitToggle : function () {
		  	this.$('.split-view').hide();
	    },

	    showSplitToggle : function () {
		  	this.$('.split-view').show();
	    },

	    enterSplitMode : function (callback) {
	    	callback || (callback = $.noop);

	    	this.hideSplitToggle();

		    this.$el.animate({
			   width : '50%'
		    }, FADE_SPEED, callback);
	    },

	    exitSplitMode : function (callback) {
	    	callback || (callback = $.noop);

		   	this.$el.animate({
			   width : '100%'
		    }, FADE_SPEED, _.bind(function () {
			    callback();
			    this.showSplitToggle();
		    }, this));
	    },

	    enterDiffMode : function () {
		  	this.$el.animate({
			   width : '33%'
		    }, FADE_SPEED);
	    },

	    exitDiffMode : function () {
		    this.$el.animate({
			   width : '50%'
		    }, FADE_SPEED);
	    },

	    onSplitView : function (ev) {
		    ev.preventDefault();

		    this.trigger('split:enter');
	    },

	    onDiff : function (ev) {
		    ev.preventDefault();

		    this.trigger('diff');
	    },

	    getValue : function () {
		    return this.textarea.val();
	    }
	}),
	SecondaryValidatorView = ValidatorView.extend({
		render : function () {
			ValidatorView.prototype.render.call(this);

			this.$('.split-view').addClass('cancel');

			this.$('.diff').css('display', 'block');
		},

	    onSplitView : function (ev) {
		    ev.preventDefault();

		    this.trigger('split:exit');
	    },

	    enterDiffMode : function () {
		    this.$el.animate({
			   width : '33%',
			   left: '67%'
		    }, FADE_SPEED);

		    this.$('.diff, .split-view').hide();
	    },

	    exitDiffMode : function () {
		    this.$el.animate({
			   width : '50%',
			   left: '50%'
		    }, FADE_SPEED);

		    this.$('.diff, .split-view').show();
	    }
	}),
	DiffView = Backbone.View.extend({
		events : {
			'click .diff' : 'onDiff',
			'click .cancel-diff' : 'onCancel'
		},

		initialize : function () {
			_.bindAll(this);

			this.windowObject = this.options.windowObject;

			$(this.windowObject).resize(this.resize);

	        this.render();
		},

		render : function () {
			var el = $(diffTemplate);

			this.$el.replaceWith(el);
			this.setElement(el);

			this.$('.diff').show();

	        _.delay(this.resize, 150);
		},

		resize : function () {
			var height = $(this.windowObject).height();

			this.$('.json_input').height(height);
		},

		setHTML : function (html) {
			this.$('.json_input').html(html);
		},

		isActive : function () {
			return this.$el.hasClass('active');
		},

		onShow : function () {
			if (!this.$el.hasClass('active')) {
				this.$el.addClass('active')
			}
		},

		onDiff : function (ev) {
			ev.preventDefault();
			this.trigger('diff');
		},

		onHide : function () {
			if (this.$el.hasClass('active')) {
				this.$el.removeClass('active')
			}
		},

		onCancel : function (ev) {
			ev.preventDefault();

			this.trigger('diff:cancel');
		}
	}),
	ErrorView = Backbone.View.extend({
		events : {
			'click .close-btn' : 'onClose'
		},

		initialize : function () {
			_.bindAll(this);

			this.container = this.options.container;

	        this.render();
		},

		render : function () {
			var el = $(errorTemplate);

			this.$el.replaceWith(el);
			this.setElement(el);
		},

		setPosition : function (offset) {
			var topOffset =  offset.top - this.$el.outerHeight() - ARROW_OFFSET,
				leftOffset = offset.left - this.container.offset().left;

			if (topOffset < 0) {
				topOffset = offset.bottom + ARROW_OFFSET;

				this.$el.addClass('reverse');
			} else {
				this.$el.removeClass('reverse');
			}

			this.topOffset = topOffset;

			this.$el.css({
				top : topOffset,
				left : leftOffset
			});
		},

		setScrollOffset : function (offset) {
			this.$el.css({
				top: this.topOffset - offset
			});
		},

		setError : function (error) {
			this.$('.results').text(error);
		},

		show : function () {
			if (!this.$el.is(':visible')) {
				this.$el.show();
			}
		},

		hide : function () {
			if (this.$el.is(':visible')) {
				this.$el.hide();
			}
		},

		onClose : function (ev) {
			ev.preventDefault();

			this.trigger('error:hide');
		}
	});

$(function () {
	var JSON_PARAM = utils._getURLParameter('json');

	// this needs to be in a composite
	new JSONComposite({
	    el 		: $('#json-composite-placeholder'),
		json 	: JSON_PARAM
    });
});

function getLocalStorage(name){ 
    now = parseInt(new Date() / 1000);
    expires = localStorage.getItem(name+"_expire");
    if(!expires){ return localStorage.getItem(name); }  
    else if(now >= expires){ localStorage.removeItem(name+"_expire"); localStorage.removeItem(name); return ""; }
    else{ return localStorage.getItem(name); }   
}

function setLocalStorage(name, value, minutes){ 
    if(minutes == null){ localStorage.setItem(name, value); localStorage.removeItem(name+"_expire"); return true} // No set expiration
    else if(minutes == 0){ localStorage.removeItem(name); localStorage.removeItem(name+"_expire"); return true} // Setting to 0 kills the localStorage Item any any expiration
    else{ 
        epochExpire = parseInt(new Date() / 1000 + (minutes * 60));
        localStorage.setItem(name, value); localStorage.setItem(name+"_expire", epochExpire); 
        return true
    }
    return false
}

function saveTextAsFile()
{
    var textToWrite = $("#json_input")[0].value;
    if(!textToWrite){ return; }
    var textFileAsBlob = new Blob([textToWrite], {type:'text/plain'});
    var fileNameToSaveAs = prompt("Save File As: (Include Extension)", ".json");

    var downloadLink = document.createElement("a");
    downloadLink.download = fileNameToSaveAs;
    downloadLink.innerHTML = "Download File";
    if (window.webkitURL != null)
    {
        // Chrome allows the link to be clicked
        // without actually adding it to the DOM.
        downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
    }
    else
    {
        // Firefox requires the link to be added to the DOM
        // before it can be clicked.
        downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
        downloadLink.onclick = destroyClickedElement;
        downloadLink.style.display = "none";
        document.body.appendChild(downloadLink);
    }

    downloadLink.click();
}

function uploadFile(){
    $( "#fileToLoad" ).click();
}

function loadFileAsText()
{
    var file = document.getElementById("fileToLoad").files[0];

    if(!file){ console.log('No File Specified'); return; }else{ console.log(file); }

    var fileReader = new FileReader();
    fileReader.onload = function(fileLoadedEvent) 
    {
        var textFromFileLoaded = fileLoadedEvent.target.result;
        $("#json_input")[0].value = textFromFileLoaded;
    };
    fileReader.readAsText(file, "UTF-8");
}

window.lighton = getLocalStorage("lighton");

function toggleLight(){
    if(window.lighton == "on"){
        window.lighton = "off";
        setLocalStorage("lighton", window.lighton, 10080);
        $('.light')[0].children[0].className = "icon light-on"
        $("#json_input").css("background","#1a1a1b").css("color","#37da1a");
        $(".lines").css("background","#1a1a1b").css("color","#37da1a");
    }
    else{
        window.lighton = "on";
        setLocalStorage("lighton", window.lighton, 10080);
        $('.light')[0].children[0].className = "icon light-off"
        $("#json_input").css("background","white").css("color","black");
        $(".lines").css("background","#f7f7f7").css("color","black");
    }
}

$( document ).ready(function() {
    if(window.lighton == "on"){ 
        $("#json_input").css("background","white").css("color","black");
        $(".lines").css("background","#f7f7f7").css("color","black");
    }
});