function cRichTextEditor(){
    this.emwindow   = new Array;
    this.editor = "body_1";
    this.table = "";
    this.id = "1";
    this.saveFlag = 0;
    this.signatures = false;
    this.replyController = false; 
    this.newImageId = false;
    this.plain = new Array;
    this.editorReady = true;
}

// This code was written by Tyler Akins and has been placed in the
// public domain.  It would be nice if you left this header intact.
// Base64 code from Tyler Akins -- http://rumkin.com

var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf(" chrome/") >= 0 || ua.indexOf(" firefox/") >= 0 || ua.indexOf(' gecko/') >= 0) {
    var StringMaker = function () {
        this.str = "";
        this.length = 0;
        this.append = function (s) {
            this.str += s;
            this.length += s.length;
        }
        this.prepend = function (s) {
            this.str = s + this.str;
            this.length += s.length;
        }
        this.toString = function () {
            return this.str;
        }
    }
} else {
    var StringMaker = function () {
        this.parts = [];
        this.length = 0;
        this.append = function (s) {
            this.parts.push(s);
            this.length += s.length;
        }
        this.prepend = function (s) {
            this.parts.unshift(s);
            this.length += s.length;
        }
        this.toString = function () {
            return this.parts.join('');
        }
    }
}

cRichTextEditor.prototype.fromJSON = function( value )
{
    return (new Function( "return " + this.decode64( value )))();
}

cRichTextEditor.prototype.decode64 = function(input) { 
 	if( typeof input === "undefined" ) return '';

	var output = new StringMaker();
	var chr1, chr2, chr3;
	var enc1, enc2, enc3, enc4;
	var i = 0;

	// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
	input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

	while (i < input.length) {
		enc1 = keyStr.indexOf(input.charAt(i++));
		enc2 = keyStr.indexOf(input.charAt(i++));
		enc3 = keyStr.indexOf(input.charAt(i++));
		enc4 = keyStr.indexOf(input.charAt(i++));

		chr1 = (enc1 << 2) | (enc2 >> 4);
		chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
		chr3 = ((enc3 & 3) << 6) | enc4;

		output.append(String.fromCharCode(chr1));

		if (enc3 != 64) {
			output.append(String.fromCharCode(chr2));
		}
		if (enc4 != 64) {
			output.append(String.fromCharCode(chr3));
		}
	}

	return output.toString();
}


cRichTextEditor.prototype.loadEditor = function(ID) {
	
        var parentDiv = document.getElementById("body_position_" + ID);
        var pObj = "body_" + ID;
        var textArea = document.createElement("TEXTAREA");
        textArea.id = pObj;
        textArea.style.width = '100%';
        parentDiv.appendChild(textArea);
        RichTextEditor.plain[ID] = false; 
        
        if(preferences.plain_text_editor == 1)
		{
			RichTextEditor.plain[ID] = true;  
			RichTextEditor.editorReady = true;
		}
        else 
			RichTextEditor.active(pObj);
}

cRichTextEditor.prototype.getSignaturesOptions = function() {
	
        if(RichTextEditor.signatures !== false)
            return RichTextEditor.signatures;
                
   	var signatures = this.fromJSON( preferences.signatures );
	var signature_types = this.fromJSON( preferences.signature_types );

	for( key in signatures )
	    if( !signature_types[key] )
		signatures[key] = signatures[key].replace( /\n/g, "<br>" );
                 
        RichTextEditor.signatures = signatures;
        return signatures;

}

cRichTextEditor.prototype.getSignatureDefault = function() {
	 
        if(RichTextEditor.signatures === false)
            RichTextEditor.signatures = RichTextEditor.getSignaturesOptions(); 
         
        if(!RichTextEditor.signatures ||  
           !RichTextEditor.signatures[preferences.signature_default || ""])
        {
          preferences.use_signature = "0"; //Desabilita o uso da assinatura
          return '';
        } 
        
        return unescape(RichTextEditor.signatures[preferences.signature_default]);

}

cRichTextEditor.prototype.createImage = function(){
                
	var form = document.getElementById("attachment_window");
        
	if (form == null){
		form = document.createElement("DIV");
		form.id  = "attachment_window";
		form.style.visibility = "hidden";
		form.style.position = "absolute";
		form.style.background = "#eeeeee";
		form.style.left = "0px";
		form.style.top  = "0px"; 
		form.style.width = "0px";
		form.style.height = "0px";
		document.body.appendChild(form);
	}
		var form_upload = Element('form_upload');
		if (form_upload == null)
			form_upload = document.createElement("DIV");
		form_upload.id = "form_upload";
		form_upload.style.position = "absolute";
		form_upload.style.top = "5px";
		form_upload.style.left = "5px";
		form_upload.name = get_lang("Upload File");
		form_upload.style.width = "450px";
		form_upload.style.height = "75px";
		form_upload.innerHTML = get_lang('Select the desired image file')+':<br>'+
		'<input name="image_at" maxlength="255" size="40" id="inputFile_img" type="file"><br>' +
		'<input title="' + get_lang('Include') + '"  value="' + get_lang('Include') + '"' + 
                'type="button" onclick="RichTextEditor.addInputFile();">&nbsp;' +
		'<input title="' + get_lang('Close') + '"  value="' + get_lang('Close') + '"' +
		' type="button" onclick="win.close()">';
		form.appendChild(form_upload);
		
		this.showWindow(form);
}
cRichTextEditor.prototype.showWindow = function (div){

		if(! div) {
			return;
		}
		
		if(! this.emwindow[div.id]) {
			div.style.width  =  div.firstChild.style.width;
			div.style.height = div.firstChild.style.height;
			div.style.zIndex = "10000";			
			var title = div.firstChild.name;
			var wHeight = div.offsetHeight + "px";
			var wWidth =  div.offsetWidth   + "px";
			div.style.width = div.offsetWidth - 5;

			win = new dJSWin({
				id: 'win_'+div.id,
				content_id: div.id,
				width: wWidth,
				height: wHeight,
				title_color: '#3978d6',
				bg_color: '#eee',
				title: title,
				title_text_color: 'white',
				button_x_img: '../phpgwapi/images/winclose.gif',
				border: true});
			
			this.emwindow[div.id] = win;
			win.draw();
		}
		else
			win = this.emwindow[div.id];
		win.open();	
}
cRichTextEditor.prototype.addInputFile = function()
{
	//Begin: Verify if the image extension is allowed.
	var imgExtensions = new Array("jpeg", "jpg", "gif", "png", "bmp", "xbm", "tiff", "pcx");
	var inputFile = document.getElementById('inputFile_img');	
	if(!inputFile.value) return false;
	var fileExtension = inputFile.value.split(".");
	fileExtension = fileExtension[(fileExtension.length-1)];
	var deniedExtension = true;
	for(var i=0; i<imgExtensions.length; i++) {
		if(imgExtensions[i].toUpperCase() == fileExtension.toUpperCase()) {
			deniedExtension = false;
			break;
		}
	}
	if(deniedExtension) {
		alert(get_lang('File extension forbidden or invalid file') + '.');
		return false;
	}
	// End: Verify image extension.
        var id =  currentTab;
	divFiles = document.getElementById("divFiles_"+id);
	var countDivFiles = divFiles.childNodes.length + 1;

	var divFiles = document.getElementById('divFiles_'+id);
	inputFile.id = 'inputFile_'+id +"_"+countDivFiles;
	inputFile.name = 'file_'+countDivFiles;
	divFile = document.createElement('DIV');
	divFile.appendChild(inputFile);
	divFiles.appendChild(divFile);

	var form_upload = document.getElementById('form_upload');
	form_upload.parentNode.removeChild(form_upload);
	win.close();

	RichTextEditor.saveFlag = 0; // See if save function finished
	var save_link = document.getElementById("save_message_options_"+id);
	save_link.onclick = function () {};
        this.newImageId = new Date().getTime();
        CKEDITOR.instances['body_'+id].insertHtml('<img id="'+this.newImageId+'" src=""/>');
	save_msg(id,true);
}

cRichTextEditor.prototype.execPosInstance = function(inst) {
     if(RichTextEditor.editorReady === false)
     {
	var editor =  CKEDITOR.instances[inst]; 
	var id = inst.replace('body_','');
	editor.document.on('keydown', function(event)
	{
		away = false;
		var save_link = Element("save_message_options_"+id);
		save_link.onclick = function onclick() {openTab.toPreserve[id] = true;save_msg(id);} ;
		$("#save_message_options_"+id).button({ disabled: false });
	});
        
       
        // IM Module Enabled
	if( window.parent.loadscript && loadscript.autoStatusIM )
	{
		CKEDITOR.instances[inst].document.on('keydown', function(event){
			loadscript.autoStatusIM;
		});            	
	}

	if (preferences.auto_save_draft == 1)
	{
            autoSaveControl.status[id] = true;
            autoSaveControl.timer[id] = window.setInterval( "autoSave("+id+")" ,autosave_time);  

            CKEDITOR.instances[inst].document.on('keydown', function(event){   
                autoSaveControl.status[id] = false;
            })
        }
        
	$(".cke_editor").css("white-space", "normal");
        RichTextEditor.editorReady = true;
     }	
}

cRichTextEditor.prototype.setPlain = function (active,id){
      RichTextEditor.plain[id] = active;
      if(active === true)
      {
            CKEDITOR.instances['body_'+id].destroy();
            var height = document.body.scrollHeight;
            height -= 330;
            $('#body_'+id).height(height);
            $('#body_'+id).keydown(function(event) {
                away = false;
                var save_link = Element("save_message_options_"+id);
                save_link.onclick = function onclick() {openTab.toPreserve[id] = true;save_msg(id);} ;
				$("#save_message_options_"+id).button({ disabled: false });
                //save_link.className = 'message_options';
            });
			$("[name=textplain_rt_checkbox_"+id+"]").button({ disabled: false });
      }   
      else
          RichTextEditor.active('body_'+id, id);
}

cRichTextEditor.prototype.getData = function (inst){  
    var id = inst.replace('body_','');
    
    if(RichTextEditor.plain[id] === true)
        return $('#'+inst).val();
    else
        return CKEDITOR.instances[inst].getData();
}
cRichTextEditor.prototype.setData = function (id,data){
    
     if(this.plain[id] === true)
        $('#'+id).val(data);
     else
        CKEDITOR.instances[id].setData(data)
}
cRichTextEditor.prototype.setInitData = function (id,data,reply,recursion){
    
    if(recursion === undefined) recursion = 1;
    else recursion++;    
    
     if(this.plain[id] === true)
     {
		 if($('#'+id) !== undefined){
			$('#'+id).val(data);
		 if (reply === undefined)	
			$('#to_'+id).focus();
         }
         else
			  setTimeout(function() {RichTextEditor.setInitData(id,data,reply,recursion); }, 500);
	 }  
     else
     {
       if( RichTextEditor.editorReady === true && CKEDITOR.instances['body_'+id] !== undefined )    
       {
           var editor =   CKEDITOR.instances['body_'+id];   
           editor.insertHtml('');
           var selection = editor.getSelection();
           if(selection !== undefined && selection !== null) var selectionRanges = selection.getRanges(); 

           var fontSize = '';
           var fontFamily = '';
           
           if(typeof(preferences.font_size_editor) !== 'undefined')
               fontSize = 'font-size:' + preferences.font_size_editor;
               
           if(fontSize != '') 
               fontFamily = ';'
           
           if(typeof(preferences.font_family_editor) !== 'undefined')
               fontFamily += 'font-family:' + preferences.font_family_editor + ';'; 
            
           var divBr = '<div style="'+fontSize+fontFamily+'"><br type="_moz"></div>';
          
		    if(reply === undefined){
				editor.on('insertHtml',function setFocus(e){
							setTimeout("$('#to_"+id+"').focus()",100);
							editor.removeListener('insertHtml', setFocus);
						}
				);
				editor.insertHtml(divBr+divBr+data);
			}
			else if(reply == 'edit')
				editor.insertHtml(data);
			else
				editor.insertHtml(divBr+data);
           
           if(selection !== null) selection.selectRanges(selectionRanges); 
		   
		   //Coloca o scroll do editor no inicio
		   if (is_webkit){
				$('#cke_contents_body_'+id+'>iframe').scrollTo(':first');
		   }
          //Caso não for uma resposta votla o foco para o input to
          //if(reply === undefined)    
            //      setTimeout("$('#to_"+id+"').focus()",100);
  
       }
       else if(recursion < 20)
           setTimeout(function() {RichTextEditor.setInitData(id,data,reply,recursion); }, 500);
     } 
}

cRichTextEditor.prototype.destroy = function(id)
{
        //Remove Instancia do editor
        if( CKEDITOR.instances[id] !== undefined )   
             CKEDITOR.remove(CKEDITOR.instances[id]);
}
cRichTextEditor.prototype.active = function(id, just_id)
{
   
   //Remove Instancia do editor caso ela exista
    if( CKEDITOR.instances[id] !== undefined )   
         CKEDITOR.remove(CKEDITOR.instances[id]);
     
    var height = document.body.scrollHeight;
     height -= 375;
     $('#'+id).ckeditor( 
          function() {RichTextEditor.execPosInstance(id)},
          {
              toolbar:'mail',
              height: height
          }); 
	$("[name=textplain_rt_checkbox_"+just_id+"]").button({ disabled: false });
}
cRichTextEditor.prototype.focus = function(id)
{
    if(RichTextEditor.plain[id]  === true)
        $('#body_'+id).focus();
    else
        CKEDITOR.instances['body_'+id].focus(); 

}
//Função reseta o atributo contentEditable para resolver bug de cursor ao trocar abas 
cRichTextEditor.prototype.setEditable = function(id) { 
        if( CKEDITOR.instances['body_'+ id] === undefined ) return;    
        var element = CKEDITOR.instances['body_'+ id].document.getBody(); 
        element.removeAttribute('contentEditable'); 
        element.setAttribute('contentEditable','true'); 
} 
//Build the Object
RichTextEditor = new cRichTextEditor();