/*
Script Name: 	Accessible Rich Text Box Editor- (http://jastegg.it/eggs/richtextbox/ )
Author:			Diego La Monica 
version: 		1.0.18
version date:	2008-05-24
Plugin for:		JAST ( http://jastegg.it )
--------------------------------
*/
JASTEggIt.extend('RTB',{options:{preview:true,toolbar:true,bold:null,italic:null,underline:null,strikethru:null,extraButtons:null,extraFunctions:null,extraRendering:null,className:'jast-rtb-toolbar'},_options:[],id:'',action:function(id,param){if(!isNaN(param)){this._options[id].extraFunctions[param](id,param);return false;}JASTEggIt.RTB.insertAtCursor(id,param,param);return false;},setup:function(id,options){options=JASTEggIt.mergeOptions(options,this.options);options.id=id;if(options.toolbar)this.createToolbar(options);if(options.preview)this.createPreview(options);if(JASTEggIt.Browser.ie){JASTEggIt.event(JASTEggIt._id(id),'keydown',JASTEggIt.RTB.keyDown);}else{JASTEggIt._id(id).onkeypress=JASTEggIt.RTB.checkCombination;}this._options[id]=options;},isIn:function(code,cases){for(var i=0;i<cases.length;i++){if(code==cases.charCodeAt(i))return true;}return false;},insertAtCursor:function(element,start,end){var e=JASTEggIt._el(element);if(document.selection){e.focus();caretPos=document.selection.createRange().duplicate();caretPos.text=start+caretPos.text+end;if(caretPos.text.length==0){caretPos.moveStart("character",-end.length);caretPos.moveEnd("character",-end.length);caretPos.select();}e.focus(caretPos);}else if(e.selectionStart||e.selectionStart=='0'){e.focus();var startPos=e.selectionStart;var endPos=e.selectionEnd;var preTxt=e.value.substring(0,startPos);var selTxt=e.value.substring(startPos,endPos);var follTxt=e.value.substring(endPos,e.value.length);var scrollPos=e.scrollTop;e.value=preTxt+start+selTxt+end+follTxt;if(e.setSelectionRange){if(selTxt.length==0)e.setSelectionRange(startPos+start.length,startPos+start.length);else e.setSelectionRange(startPos,startPos+start.length+selTxt.length+end.length);e.focus();}e.scrollTop=scrollPos;}else{e.value+=start+end;}},parseString:function(id,p){p=p.replace(/\\\*/g,"&#42;");p=p.replace(/\\\//g,"&#47;");p=p.replace(/\\\_/g,"&#95;");p=p.replace(/\\\-/g,"&#45;");p=p.replace(/\\(.)/g,"$1");if(this._options[id].italic!=null)p=p.replace(/(^|[^\/:a-z0-9])\/(.+?)\/([^:\/a-z]|$)/g,"$1<em>$2</em>$3");if(this._options[id].bold!=null)p=p.replace(/(^|[^\*:a-z0-9])\*(.+?)\*([^:\*a-z0-9]|$)/g,"$1<strong>$2</strong>$3");if(this._options[id].underline!=null)p=p.replace(/(^|[^\_:a-z0-9])\_(.+?)\_([^:\_a-z0-9]|$)/g,"$1<span style=\"text-decoration:underline;\">$2</em>$3");if(this._options[id].strikethru!=null)p=p.replace(/(^|[^\-:a-z0-9])\-(.+?)\-([^:\-a-z0-9]|$)/g,"$1<del>$2</del>$3");p=p.replace(/\^2\s*([^\^]+)\^\n/g,"<h2>$1</h2>");p=p.replace(/\^3\s*([^\^]+)\^\n/g,"<h3>$1</h3>");p=p.replace(/\^4\s*([^\^]+)\^\n/g,"<h4>$1</h4>");p=p.replace(/\^5\s*([^\^]+)\^\n/g,"<h5>$1</h5>");p=p.replace(/\^6\s*([^\^]+)\^\n/g,"<h6>$1</h6>");p=p.replace(/\^([^\^]+)\^\n/g,"<h1>$1</h1>");p=p.replace(/(((^|\n)>.*)+)/g,"<blockquote>$1</blockquote>");p=p.replace(/(^|\n)(-\s)(.*)/mg,"$1<li>$3</li>");p=p.replace(/((<li>.*<\/li>(\n)*)+)/g,"<ul>$1</ul>");p=p.replace(/((^|\n)(1\.\s?))(.*)/g,"$1<li>$4</li>");p=p.replace(/((1\.\s?<li>.*<\/li>(\n)*)+)/g,"<ol>$1</ol>");p=p.replace(/1\.\s?<li>/g,"<li>");p=p.replace(/<\/li>\n/g,"</li>");p=p.replace(/<\/blockquote>\n/,'</blockquote>');p=p.replace(/(^|[^<])((https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])($|[^>])/ig,"$1<a href=\"$2\" title=\"open url\">$2</a>$4");p=p.replace(/"([^"]+)"\s+<((https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])>/ig,"<a href=\"$2\" title=\"open url\">$1</a>");p=p.replace(/\b(?:mailto:)?([A-Z0-9._%-]+@[A-Z0-9._%-]+\.[A-Z]{2,4})\b/ig,"<a href=\"mailto:$1\" title=\"send mail\">$1</a>");p=p.replace(/(\[([a-fA-F0-9]{3})\](.*?)\[\2\])/g,"<span style=\"color: #$2\">$3</span>");p=p.replace(/\n/g,"<br />");if(this._options[id].extraRendering!=null)p=this._options[id].extraRendering(p);return p;},showPreview:function(id){var area=JASTEggIt._el(id);var id=area.id;var p=area.value;p=this.parseString(id,p);var pr=JASTEggIt._id(id+'-preview');pr.innerHTML='<h3>Preview</h3>'+'<p>'+p+'</p>';},checkCombination:function(event){if(!event.ctrlKey)return true;var cc=JASTEggIt.kbd.getKeyPressed(event);if(cc==17)return false;if(JASTEggIt.RTB.isIn(cc,'buis')){var id=JASTEggIt.Events.generator(event).id;var o=JASTEggIt.RTB._options[id];if(JASTEggIt.RTB.isIn(cc,'b')&&(o.bold!=null))JASTEggIt.RTB.action(id,'*');else if(JASTEggIt.RTB.isIn(cc,'i')&&(o.italic!=null))JASTEggIt.RTB.action(id,'/');else if(JASTEggIt.RTB.isIn(cc,'u')&&(o.underline!=null))JASTEggIt.RTB.action(id,'_');else if(JASTEggIt.RTB.isIn(cc,'s')&&(o.strikethru!=null))JASTEggIt.RTB.action(id,'-');return false;}},keyDown:function(){if(window.event)return JASTEggIt.RTB.checkCombination(window.event);},createToolbar:function(options){var id=options.id;var rtba=JASTEggIt._id(id);var t='<a href="#" onclick="return JASTEggIt.RTB.action(\''+id+'\',\'$C\');" title="$D"> $T<'+'/a>';var b='';if(options.bold!=null)b+=t.replace('$C','*').replace('$D','bold').replace('$T',options.bold);if(options.italic!=null)b+=t.replace('$C','/').replace('$D','italic').replace('$T',options.italic);if(options.underline!=null)b+=t.replace('$C','_').replace('$D','underlined').replace('$T',options.underline);if(options.strikethru!=null)b+=t.replace('$C','-').replace('$D','strikethru').replace('$T',options.strikethru);if(options.extraButtons!=null){for(var i=0;i<options.extraButtons.length;i++){b+=t.replace('$C',i).replace('$D',options.extraButtons[i]).replace('$T',options.extraButtons[i]);}}var tb=JASTEggIt.DOM.createOnDocument('div',rtba,null,id+'-toolbar');if(options.className!=''&&options.className!=null)tb.className=options.className;tb.style.width=rtba.clientWidth+'px';tb.innerHTML=b;},createPreview:function(options){var rtba=JASTEggIt._id(options.id);var div=JASTEggIt.DOM.createOnDocument('div',null,rtba,options.id+"-preview");JASTEggIt.Listener.watch(options.id,'value',function(itm){JASTEggIt.RTB.showPreview(itm.id)});}});