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HTMLEditor Provider - How to write a custom provider for ASP.NET 2.0

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5 Sep 200614 min read 122.8K   2.4K   123  
A tutorial on how to use the Provider Templates to create your own provider.
/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 * 		http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 * 		http://www.fckeditor.net/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: multihexa.js
 * 	Scripts for the fck_universalkey.html page.
 * 	Definition des 104 caracteres en hexa unicode.
 * 
 * File Authors:
 * 		Michel Staelens (michel.staelens@wanadoo.fr)
 * 		Bernadette Cierzniak
 * 		Abdul-Aziz Al-Oraij (top7up@hotmail.com)
 */

var caps=0, lock=0, hexchars="0123456789ABCDEF", accent="0000", keydeb=0
var key=new Array();j=0;for (i in Maj){key[j]=i;j++}
var ns6=((!document.all)&&(document.getElementById))
var ie=document.all

var langue=getCk();
if (langue==""){
	langue=key[keydeb]
}
CarMaj=Maj[langue].split("|");CarMin=Min[langue].split("|")

/*unikey*/
var posUniKeyLeft=0, posUniKeyTop=0
if (ns6){posUniKeyLeft=0;posUniKeyTop=60}
else if (ie){posUniKeyLeft=0;posUniKeyTop=60}
tracer("fond",posUniKeyLeft,posUniKeyTop,'<img src="fck_universalkey/keyboard_layout.gif" width=404 height=152 border="0"><br />',"sign")
/*touches*/
var posX=new Array(0,28,56,84,112,140,168,196,224,252,280,308,336,42,70,98,126,154,182,210,238,266,294,322,350,50,78,106,134,162,190,218,246,274,302,330,64,92,120,148,176,204,232,260,288,316,28,56,84,294,322,350)
var posY=new Array(14,14,14,14,14,14,14,14,14,14,14,14,14,42,42,42,42,42,42,42,42,42,42,42,42,70,70,70,70,70,70,70,70,70,70,70,98,98,98,98,98,98,98,98,98,98,126,126,126,126,126,126)
var nbTouches=52
for (i=0;i<nbTouches;i++){
	CarMaj[i]=((CarMaj[i]!="0000")?(fromhexby4tocar(CarMaj[i])):"")
	CarMin[i]=((CarMin[i]!="0000")?(fromhexby4tocar(CarMin[i])):"")
	if (CarMaj[i]==CarMin[i].toUpperCase()){
		cecar=((lock==0)&&(caps==0)?CarMin[i]:CarMaj[i])
		tracer("car"+i,posUniKeyLeft+6+posX[i],posUniKeyTop+3+posY[i],cecar,((dia[hexa(cecar)]!=null)?"simpledia":"simple"))
		tracer("majus"+i,posUniKeyLeft+15+posX[i],posUniKeyTop+1+posY[i],"&nbsp;","double")
		tracer("minus"+i,posUniKeyLeft+3+posX[i],posUniKeyTop+9+posY[i],"&nbsp;","double")
	}
	else{
		tracer("car"+i,posUniKeyLeft+6+posX[i],posUniKeyTop+3+posY[i],"&nbsp;","simple")
		cecar=CarMin[i]
		tracer("minus"+i,posUniKeyLeft+3+posX[i],posUniKeyTop+9+posY[i],cecar,((dia[hexa(cecar)]!=null)?"doubledia":"double"))
		cecar=CarMaj[i]
		tracer("majus"+i,posUniKeyLeft+15+posX[i],posUniKeyTop+1+posY[i],cecar,((dia[hexa(cecar)]!=null)?"doubledia":"double"))
	}
}
/*touches de fonctions*/
var actC1=new Array(0,371,364,0,378,0,358,0,344,0,112,378)
var actC2=new Array(0,0,14,42,42,70,70,98,98,126,126,126)
var actC3=new Array(32,403,403,39,403,47,403,61,403,25,291,403)
var actC4=new Array(11,11,39,67,67,95,95,123,123,151,151,151)
var act  =new Array(" « KB"," KB » ","Delete","Clear","Back","Caps<br> Lock","Enter","Shift","Shift","<|<","Space",">|>")
var effet=new Array("keyscroll(-3)","keyscroll(3)","faire(\"del\")","RAZ()","faire(\"bck\")","bloq()","faire(\"\\n\")","haut()","haut()","faire(\"ar\")","faire(\" \")","faire(\"av\")")
var nbActions=12
for (i=0;i<nbActions;i++){
	tracer("act"+i,posUniKeyLeft+1+actC1[i],posUniKeyTop-1+actC2[i],act[i],"action")
}
/*navigation*/
var keyC1=new Array(35,119,203,287)
var keyC2=new Array(0,0,0,0)
var keyC3=new Array(116,200,284,368)
var keyC4=new Array(11,11,11,11)
for (i=0;i<4;i++){
	tracer("key"+i,posUniKeyLeft+5+keyC1[i],posUniKeyTop-1+keyC2[i],key[i],"unikey")
}
/*zones reactives*/
tracer("masque",posUniKeyLeft,posUniKeyTop,'<img src="fck_universalkey/00.gif" width=404 height=152 border="0" usemap="#unikey">')
document.write('<map name="unikey">')
for (i=0;i<nbTouches;i++){
	document.write('<area coords="'+posX[i]+','+posY[i]+','+(posX[i]+25)+','+(posY[i]+25)+'" href=# onClick=\'javascript:ecrire('+i+')\'>')
}
for (i=0;i<nbActions;i++){
	document.write('<area coords="'+actC1[i]+','+actC2[i]+','+actC3[i]+','+actC4[i]+'" href=# onClick=\'javascript:'+effet[i]+'\'>')
}
for (i=0;i<4;i++){
	document.write('<area coords="'+keyC1[i]+','+keyC2[i]+','+keyC3[i]+','+keyC4[i]+'" onclick=\'javascript:charger('+i+')\'>')
}
document.write('</map>')

/*fonctions*/
function ecrire(i){
	txt=rechercher()+"|";subtxt=txt.split("|")
	ceci=(lock==1)?CarMaj[i]:((caps==1)?CarMaj[i]:CarMin[i])
	if (test(ceci)){subtxt[0]+=cardia(ceci);distinguer(false)}
	else if(dia[accent]!=null&&dia[hexa(ceci)]!=null){distinguer(false);accent=hexa(ceci);distinguer(true)}
	else if(dia[accent]!=null){subtxt[0]+=fromhexby4tocar(accent)+ceci;distinguer(false)}
	else if(dia[hexa(ceci)]!=null){accent=hexa(ceci);distinguer(true)}
	else {subtxt[0]+=ceci}
	txt=subtxt[0]+"|"+subtxt[1]
	afficher(txt)
	if (caps==1){caps=0;MinusMajus()}
}
function faire(ceci){
	txt=rechercher()+"|";subtxt=txt.split("|")
	l0=subtxt[0].length
	l1=subtxt[1].length
	c1=subtxt[0].substring(0,(l0-2))
	c2=subtxt[0].substring(0,(l0-1))
	c3=subtxt[1].substring(0,1)
	c4=subtxt[1].substring(0,2)
	c5=subtxt[0].substring((l0-2),l0)
	c6=subtxt[0].substring((l0-1),l0)
	c7=subtxt[1].substring(1,l1)
	c8=subtxt[1].substring(2,l1)
	if(dia[accent]!=null){if(ceci==" "){ceci=fromhexby4tocar(accent)}distinguer(false)}
	switch (ceci){
	case("av") :if(escape(c4)!="%0D%0A"){txt=subtxt[0]+c3+"|"+c7}else{txt=subtxt[0]+c4+"|"+c8}break
	case("ar") :if(escape(c5)!="%0D%0A"){txt=c2+"|"+c6+subtxt[1]}else{txt=c1+"|"+c5+subtxt[1]}break
	case("bck"):if(escape(c5)!="%0D%0A"){txt=c2+"|"+subtxt[1]}else{txt=c1+"|"+subtxt[1]}break
	case("del"):if(escape(c4)!="%0D%0A"){txt=subtxt[0]+"|"+c7}else{txt=subtxt[0]+"|"+c8}break
	default:txt=subtxt[0]+ceci+"|"+subtxt[1];break
	}
	afficher(txt)
}
function RAZ(){txt="";if(dia[accent]!=null){distinguer(false)}afficher(txt)}
function haut(){caps=1;MinusMajus()}
function bloq(){lock=(lock==1)?0:1;MinusMajus()}

/*fonctions de traitement du unikey*/
function tracer(nom,gauche,haut,ceci,classe){ceci="<span class="+classe+">"+ceci+"</span>";document.write('<div id="'+nom+'" >'+ceci+'</div>');if (ns6){document.getElementById(nom).style.left=gauche+"px";document.getElementById(nom).style.top=haut+"px";}else if (ie){document.all(nom).style.left=gauche;document.all(nom).style.top=haut}}
function retracer(nom,ceci,classe){ceci="<span class="+classe+">"+ceci+"</span>";if (ns6){document.getElementById(nom).innerHTML=ceci}else if (ie){doc=document.all(nom);doc.innerHTML=ceci}}
function keyscroll(n){
	keydeb+=n
	if (keydeb<0){
		keydeb=0
	}
	if (keydeb>key.length-4){
		keydeb=key.length-4
	}
	for (i=keydeb;i<keydeb+4;i++){
		retracer("key"+(i-keydeb),key[i],"unikey")
	}
	if (keydeb==0){
		retracer("act0","&nbsp;","action")
	}else {
		retracer("act0",act[0],"action")
	}
	if (keydeb==key.length-4){
		retracer("act1","&nbsp;","action")
	}else {
		retracer("act1",act[1],"action")
	}
}
function charger(i){
	langue=key[i+keydeb];setCk(langue);accent="0000"
	CarMaj=Maj[langue].split("|");CarMin=Min[langue].split("|")
	for (i=0;i<nbTouches;i++){
		CarMaj[i]=((CarMaj[i]!="0000")?(fromhexby4tocar(CarMaj[i])):"")
		CarMin[i]=((CarMin[i]!="0000")?(fromhexby4tocar(CarMin[i])):"")
		if (CarMaj[i]==CarMin[i].toUpperCase()){
			cecar=((lock==0)&&(caps==0)?CarMin[i]:CarMaj[i])
			retracer("car"+i,cecar,((dia[hexa(cecar)]!=null)?"simpledia":"simple"))
			retracer("minus"+i,"&nbsp;")
			retracer("majus"+i,"&nbsp;")
		}
		else{
			retracer("car"+i,"&nbsp;")
			cecar=CarMin[i]
			retracer("minus"+i,cecar,((dia[hexa(cecar)]!=null)?"doubledia":"double"))
			cecar=CarMaj[i]
			retracer("majus"+i,cecar,((dia[hexa(cecar)]!=null)?"doubledia":"double"))
		}
	}
}
function distinguer(oui){
	for (i=0;i<nbTouches;i++){
		if (CarMaj[i]==CarMin[i].toUpperCase()){
			cecar=((lock==0)&&(caps==0)?CarMin[i]:CarMaj[i])
			if(test(cecar)){retracer("car"+i,oui?(cardia(cecar)):cecar,oui?"simpledia":"simple")}
		}
		else{
			cecar=CarMin[i]
			if(test(cecar)){retracer("minus"+i,oui?(cardia(cecar)):cecar,oui?"doubledia":"double")}
			cecar=CarMaj[i]
			if(test(cecar)){retracer("majus"+i,oui?(cardia(cecar)):cecar,oui?"doubledia":"double")}
		}
	}
	if (!oui){accent="0000"}
}
function MinusMajus(){
	for (i=0;i<nbTouches;i++){
		if (CarMaj[i]==CarMin[i].toUpperCase()){
			cecar=((lock==0)&&(caps==0)?CarMin[i]:CarMaj[i])
			retracer("car"+i,(test(cecar)?cardia(cecar):cecar),((dia[hexa(cecar)]!=null||test(cecar))?"simpledia":"simple"))
		}
	}
}
function test(cecar){return(dia[accent]!=null&&dia[accent][hexa(cecar)]!=null)}
function cardia(cecar){return(fromhexby4tocar(dia[accent][hexa(cecar)]))}
function fromhex(inval){out=0;for (a=inval.length-1;a>=0;a--){out+=Math.pow(16,inval.length-a-1)*hexchars.indexOf(inval.charAt(a))}return out}
function fromhexby4tocar(ceci){out4=new String();for (l=0;l<ceci.length;l+=4){out4+=String.fromCharCode(fromhex(ceci.substring(l,l+4)))}return out4}
function tohex(inval){return hexchars.charAt(inval/16)+hexchars.charAt(inval%16)}
function tohex2(inval){return tohex(inval/256)+tohex(inval%256)}
function hexa(ceci){out="";for (k=0;k<ceci.length;k++){out+=(tohex2(ceci.charCodeAt(k)))}return out}
function getCk(){
	fromN=document.cookie.indexOf("langue=")+0;
	if((fromN)!=-1){
		fromN+=7;
		toN=document.cookie.indexOf(";",fromN)+0;
		if(toN==-1){
			toN=document.cookie.length
		}
		return unescape(document.cookie.substring(fromN,toN))
	}
	return ""
}
function setCk(inval){
	if(inval!=null){
		exp=new Date();
		time=365*60*60*24*1000;
		exp.setTime(exp.getTime()+time);
		document.cookie=escape("langue")+"="+escape(inval)+"; "+"expires="+exp.toGMTString()
	}
}

// Arabic Keystroke Translator
function arkey(e) {
	if ((document.layers)|(navigator.userAgent.indexOf("MSIE 4")>-1)|(langue!="Arabic")) return true;

	if (!e) var e = window.event;
	if (e.keyCode) keyCode = e.keyCode;
	else if (e.which) keyCode = e.which;
	var character = String.fromCharCode(keyCode);

		entry = true;
		cont=e.srcElement || e.currentTarget || e.target;
		if (keyCode>64 && keyCode<91) {
			entry=false;
			source='ش لاؤ ي ث ب ل ا ه ت ن م ة ى خ ح ض ق س ف ع ر ص ء غ ئ ';
			shsource='ِ لآ} ] ُ [ لأأ ÷ ـ ، /   آ × ؛ َ ٌ ٍ لإ  { ً ْ إ ~'; 

			if (e.shiftKey) cont.value += shsource.substr((keyCode-64)*2-2,2);
			else
				cont.value += source.substr((keyCode-64)*2-2,2);
			if (cont.value.substr(cont.value.length-1,1)==' ') cont.value=cont.value.substr(0,cont.value.length-1);
		}
		if (e.shiftKey) {
			if (keyCode==186) {cont.value += ':';entry=false;}
			if (keyCode==188) {cont.value += ',';entry=false;}
			if (keyCode==190) {cont.value += '.';entry=false;}
			if (keyCode==191) {cont.value += '؟';entry=false;}
			if (keyCode==192) {cont.value += 'ّ';entry=false;}
			if (keyCode==219) {cont.value += '<';entry=false;}
			if (keyCode==221) {cont.value += '>';entry=false;}
		} else {
			if (keyCode==186||keyCode==59) {cont.value += 'ك';entry=false;}
			if (keyCode==188) {cont.value += 'و';entry=false;}
			if (keyCode==190) {cont.value += 'ز';entry=false;}
			if (keyCode==191) {cont.value += 'ظ';entry=false;}
			if (keyCode==192) {cont.value += 'ذ';entry=false;}
			if (keyCode==219) {cont.value += 'ج';entry=false;}
			if (keyCode==221) {cont.value += 'د';entry=false;}
			if (keyCode==222) {cont.value += 'ط';entry=false;}
		}
	return entry;
}
function hold_it(e){
	if ((document.layers)|(navigator.userAgent.indexOf("MSIE 4")>-1)|(langue!="Arabic")) return true;

	var keyCode;
	if (!e) var e = window.event;
	if (e.keyCode) keyCode = e.keyCode;
	else if (e.which) keyCode = e.which;
	var character = String.fromCharCode(keyCode);
	switch(keyCode){
		case 186:
		case 188:
		case 190:
		case 191:
		case 192:
		case 219:
		case 221:
		case 222:
		case 116:
		case 59:
		case 47:
		case 46:
		case 44:
		case 39:
			return false;
		case 92:
			return true;
	}
		if (keyCode<63) return true;
		return false;
	}

var obj = document.getElementById( 'uni_area' );
if ( obj && langue=="Arabic"){
	with (navigator) {
		if (appName=="Netscape")
			obj.onkeypress = hold_it;
	}
	obj.onkeydown = arkey;
}
// Arabic Keystroke Translator End

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Written By
Systems Engineer Virtual RadioLogic
United States United States
Todd Davis has been working in web and application development for several years, using Silverlight, ASP.NET, VB.NET, C#, C++ and Javascript, as well as a great deal of work with SQL server and IIS.

He currently works for Virtual Radiologic in Eden Prairie, MN, however he is better known for his varied work in the open source community, especially the DotNetNuke project for which he provided several world-renowned training videos and modules. A huge advocate of open source and open knowledge sharing, everything on his website (www.SeaburyDesign.com) is always offered for free.

Whenever he is not actively coding at his laptop (a rarity to be sure), he can be found woodworking, walking with his wife and kids, or motoring along the back roads of MN on his Harley Davidson Fatboy.

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