/** 
 * @copyright 2008, Curators of the University of Missouri 
 * @version 0.5.2009.04.14 
 */ 
var muIconInserter=new Class({Implements:Options,options:{ElementsToSearch:[document.body],IconSeparator:"&nbsp;",FireOnDomReady:true,Debug:false,SubDomainsAreExternal:true,ExternalExceptions:[],CookieOptions:{Enabled:true,Name:"mu-icon-inserter",Duration:7},EmailPattern:"^mailto:*?",DocPattern:".*?.{extension}$"},initialize:function(b,a){this.boolEmail=false;this.boolExternal=false;this.boolDocuments=false;this.boolExceptions=false;this.boolBaseDomainSet=false;this.aryRequiredProperties=["imagesource","alttext","styleclass","location"];this.aryRequiredDocProperties=["extension"];this.aryValidTypes=["email","external","document"];this.strClassName="MU Icon Inserter";this.strBaseErrMsg="A problem has been encountered with the "+this.strClassName+". \n";this.setOptions(a);if(this.options.FireOnDomReady){window.addEvent("domready",function(){this.loadDefinitions(b);}.bind(this));}else{this.loadDefinitions(b);}},begin:function(a){if(this.options.Debug){this.testForErrors(a);}else{this.startInsertion(a);}},startInsertion:function(a){this.__setInternalParameters(a);this.options.ElementsToSearch.each(function(b){$(b).getElements("a").each(function(e){if($chk(e.href)&&e.getElements("img").length==0){if(e.href.test(this.options.EmailPattern)){if(this.boolEmail){this.__insertIcon(e,this.objEmail);}}else{if(this.boolExternal&&!e.href.contains(document.domain)){var d=true;if(this.boolExceptions){boolMatch=false;intExceptionslen=a.external.exception.length;var c=0;while(c<intExceptionslen&&!boolMatch){if(e.href.contains(a.external.exception[c])){boolMatch=true;d=false;}++c;}}if(!this.options.SubDomainsAreExternal&&d){strBaseDomain=this.__extractBaseDomain(document.domain);if(e.href.contains(strBaseDomain)){d=false;}}if(d){this.__insertIcon(e,this.objExternal);}}if(this.boolDocuments){this.__insertDocumentIcon(e,this.aryDocuments);}}}}.bind(this));}.bind(this));},loadDefinitions:function(b){if($type(b)!="object"){if(this.options.CookieOptions.Enabled&&Cookie.read(this.options.CookieOptions.Name)!=null){b=JSON.decode(iconCookie);this.begin(b);}else{var a=new Request({method:"get",url:b,onComplete:function(c){this.convertXMLtoJSON(c);}.bind(this)}).send();}}else{this.begin(b);}},__setInternalParameters:function(a){if($defined(a.email&&$type(a.email)=="object")){this.boolEmail=true;this.objEmail=a.email;}if($defined(a.external)&&$type(a.external)=="object"){this.boolExternal=true;this.objExternal=a.external;if($defined(a.external.exception)&&$type(a.external.exception)=="array"&&a.external.exception.length>0){this.boolExceptions=true;}}if($defined(a.document)&&$type(a.document)=="array"&&a.document.length>0){this.boolDocuments=true;this.aryDocuments=a.document;}this.elmSpacer=new Element("span",{html:this.options.IconSeparator});},__insertIcon:function(d,c){var b=this.elmSpacer.clone();var a=this.__createImageElement(c.imagesource,c.alttext,c.styleclass);switch(c.location){case"after":b.inject(d,"after");a.inject(b,"after");break;case"into":d.adopt(b);d.adopt(a);break;}},__insertDocumentIcon:function(d,a){var b=0;var c=false;intDocumentsLen=a.length;while(b<intDocumentsLen&&!c){objExtensionDef={extension:a[b].extension};strPattern=this.options.DocPattern.substitute(objExtensionDef);if(d.href.test(strPattern)){this.__insertIcon(d,a[b]);c=true;}++b;}},__createImageElement:function(b,a,c){return new Element("img",{src:b,alt:a,title:a,"class":c});},loadErrorReporter:function(c,a){if(typeof(muErrorReporter)=="undefined"){var b="I need to report an error, but the muErrorReporter class is not available.  Will attempt to dump out errors messages via alert instead.";alert(b);if($type(c)=="array"){c.each(function(d){alert(d);});}else{this.ErrorReporter=new Object();this.ErrorReporter.boolError=false;this.ErrorReporter.aryErrMsgs=new Array();this.ErrorReporter.RecordError=function(d){this.aryErrMsgs.include(d);if(!this.boolError){this.boolError=true;}};this.ErrorReporter.ErrorsEncountered=function(){return this.boolError;};this.ErrorReporter.DisplayErrors=function(){this.aryErrMsgs.each(function(d){alert(d);});};}}else{if(!$defined(this.ErrorReporter)){this.ErrorReporter=new muErrorReporter();}}},testForErrors:function(objDefinitions){if(!$defined(this.ErrorReporter)){this.loadErrorReporter();}this.aryValidTypes.each(function(strType){var objItem=eval("objDefinitions."+strType);if($defined(objItem)){if(strType=="document"){var aryReqProps=this.aryRequiredProperties;aryReqProps.extend(this.aryRequiredDocProperties);intDocCount=0;objItem.each(function(objDocument){this.testForRequiredProperties(objDocument,strType+" "+intDocCount,aryReqProps);++intDocCount;}.bind(this));}else{this.testForRequiredProperties(objItem,strType,this.aryRequiredProperties);}}}.bind(this));if(this.ErrorReporter.ErrorsEncountered()){this.ErrorReporter.DisplayErrors();}else{this.startInsertion(objDefinitions);}},testForRequiredProperties:function(objItem,strType,aryRequiredProperties){var msgErrorMessage="The {property} for {type} must be defined and can not be left blank";aryRequiredProperties.each(function(strProperty){if(!$defined(eval("objItem."+strProperty))||eval("objItem."+strProperty)==""){var objOptions={property:strProperty,type:strType};this.ErrorReporter.RecordError(msgErrorMessage.substitute(objOptions));}}.bind(this));},convertXMLtoJSON:function(c){var a=new Array();if($type(c)!="string"||c==""){var b="I was unable to load the xml data definitions. Please verify the path the xml file.";a.include(b);}if(typeof(xml2json)=="undefined"){var b="I was unable to load the xml parser. Please verify the path to the source file.";a.include(b);}if(a.length==0){objDefinitions=xml2json.parser(c);if(this.options.CookieOptions.Enabled){this.writeIconCookie(objDefinitions.definitions);}this.begin(objDefinitions.definitions);}else{this.reportXMLErrors(a);}},reportXMLErrors:function(a){if(!$defined(this.ErrorReporter)){this.ErrorReporter=this.loadErrorReporter();}a.each(function(b){this.ErrorReporter.RecordError(b);}.bind(this));this.ErrorReporter.DisplayErrors();},writeIconCookie:function(a){Cookie.write(this.options.CookieOptions.Name,JSON.encode(a),{domain:document.domain,duration:this.options.CookieOptions.Duration});},__extractBaseDomain:function(a){aryDomainParts=a.split(".");intDomainPartslen=aryDomainParts.length;return aryDomainParts[intDomainPartslen-2]+"."+aryDomainParts[intDomainPartslen-1];}});var xml2json={parser:function(e,d,b){if(!d){d="";}e=e.replace(/\s*\/>/g,"/>");e=e.replace(/<\?[^>]*>/g,"").replace(/<\![^>]*>/g,"");if(!d.sort){d=d.split(",");}var a=this.no_fast_endings(e);a=this.attris_to_tags(a);a=escape(a);a=a.split("%3C").join("<").split("%3E").join(">").split("%3D").join("=").split("%22").join('"');for(var c=0;c<d.length;c++){a=a.replace(new RegExp("<"+d[c]+">","g"),"*$**"+d[c]+"**$*");a=a.replace(new RegExp("</"+d[c]+">","g"),"*$***"+d[c]+"**$*");}a="<JSONTAGWRAPPER>"+a+"</JSONTAGWRAPPER>";this.xmlobject={};var f=this.xml_to_object(a).jsontagwrapper;if(b){f=this.show_json_structure(f,b);}return f;},xml_to_object:function(xmlcode){var x=xmlcode.replace(/<\//g,"???");x=x.split("<");var y=[];var level=0;var opentags=[];for(var i=1;i<x.length;i++){var tagname=x[i].split(">")[0];opentags.push(tagname);level++;y.push(level+"<"+x[i].split("???")[0]);while(x[i].indexOf("???"+opentags[opentags.length-1]+">")>=0){level--;opentags.pop();}}var oldniva=-1;var objname="this.xmlobject";for(var i=0;i<y.length;i++){var preeval="";var niva=y[i].split("<")[0];var tagnamn=y[i].split("<")[1].split(">")[0];tagnamn=tagnamn.toLowerCase();var rest=y[i].split(">")[1];if(niva<=oldniva){var tabort=oldniva-niva+1;for(var j=0;j<tabort;j++){objname=objname.substring(0,objname.lastIndexOf("."));}}objname+="."+tagnamn;var pobject=objname.substring(0,objname.lastIndexOf("."));if(eval("typeof "+pobject)!="object"){preeval+=pobject+"={value:"+pobject+"};\n";}var objlast=objname.substring(objname.lastIndexOf(".")+1);var already=false;for(k in eval(pobject)){if(k==objlast){already=true;}}var onlywhites=true;for(var s=0;s<rest.length;s+=3){if(rest.charAt(s)!="%"){onlywhites=false;}}if(rest!=""&&!onlywhites){if(rest/1!=rest){rest="'"+rest.replace(/\'/g,"\\'")+"'";rest=rest.replace(/\*\$\*\*\*/g,"</");rest=rest.replace(/\*\$\*\*/g,"<");rest=rest.replace(/\*\*\$\*/g,">");}}else{rest="{}";}if(rest.charAt(0)=="'"){rest="unescape("+rest+")";}if(already&&!eval(objname+".sort")){preeval+=objname+"=["+objname+"];\n";}var before="=";after="";if(already){before=".push(";after=")";}var toeval=preeval+objname+before+rest+after;eval(toeval);if(eval(objname+".sort")){objname+="["+eval(objname+".length-1")+"]";}oldniva=niva;}return this.xmlobject;},show_json_structure:function(d,a,b){var h="";if(d.sort){h+="[\n";}else{h+="{\n";}for(var e in d){if(!d.sort){h+=e+":";}if(typeof d[e]=="object"){h+=this.show_json_structure(d[e],false,1);}else{if(typeof d[e]=="function"){var m=d[e]+"";h+=m;}else{if(typeof d[e]!="string"){h+=d[e]+",\n";}else{h+="'"+d[e].replace(/\'/g,"\\'").replace(/\n/g,"\\n").replace(/\t/g,"\\t").replace(/\r/g,"\\r")+"',\n";}}}}if(d.sort){h+="],\n";}else{h+="},\n";}if(!b){h=h.substring(0,h.lastIndexOf(","));h=h.replace(new RegExp(",\n}","g"),"\n}");h=h.replace(new RegExp(",\n]","g"),"\n]");var f=h.split("\n");h="";var g=0;for(var e=0;e<f.length;e++){if(f[e].indexOf("}")>=0||f[e].indexOf("]")>=0){g--;}tabs="";for(var c=0;c<g;c++){tabs+="\t";}h+=tabs+f[e]+"\n";if(f[e].indexOf("{")>=0||f[e].indexOf("[")>=0){g++;}}if(a=="html"){h=h.replace(/</g,"&lt;").replace(/>/g,"&gt;");h=h.replace(/\n/g,"<BR>").replace(/\t/g,"&nbsp;&nbsp;&nbsp;&nbsp;");}if(a=="compact"){h=h.replace(/\n/g,"").replace(/\t/g,"");}}return h;},no_fast_endings:function(a){a=a.split("/>");for(var c=1;c<a.length;c++){var b=a[c-1].substring(a[c-1].lastIndexOf("<")+1).split(" ")[0];a[c]="></"+b+">"+a[c];}a=a.join("");return a;},attris_to_tags:function(a){var g=" =\"'".split("");a=a.split(">");for(var e=0;e<a.length;e++){var b=a[e].split("<");for(var f=0;f<4;f++){b[0]=b[0].replace(new RegExp(g[f],"g"),"_jsonconvtemp"+f+"_");}if(b[1]){b[1]=b[1].replace(/'/g,'"');b[1]=b[1].split('"');for(var c=1;c<b[1].length;c+=2){for(var f=0;f<4;f++){b[1][c]=b[1][c].replace(new RegExp(g[f],"g"),"_jsonconvtemp"+f+"_");}}b[1]=b[1].join('"');}a[e]=b.join("<");}a=a.join(">");a=a.replace(/ ([^=]*)=([^ |>]*)/g,"><$1>$2</$1");a=a.replace(/>"/g,">").replace(/"</g,"<");for(var f=0;f<4;f++){a=a.replace(new RegExp("_jsonconvtemp"+f+"_","g"),g[f]);}return a;}};if(!Array.prototype.push){Array.prototype.push=function(a){this[this.length]=a;return true;};}if(!Array.prototype.pop){Array.prototype.pop=function(){var a=this[this.length-1];this.length--;return a;};}