exGobz

/* objects and methods
*/

// button constructor
function buttonSetItem(buttonSet,buttonDef) {
// referencing parent objects
this.buttonSet=buttonSet;
this.textareaEnhancer=this.buttonSet.textareaEnhancer;
// methods
this.setLabel=buttonSetItem_setLabel;
this.setBehavior=buttonSetItem_setBehavior;
// creating HTML DOM button
this.dom=document.createElement('input');
this.dom.setAttribute('type','button');
// referencing self in DOM object
this.dom.enhancer=this;
// parsing def
var def=buttonDef.split('|');
var label=def.shift();
var textareaEnhancerMethod=def.shift();
var args=def;
// autosetting
this.setLabel(label);
this.setBehavior(textareaEnhancerMethod,args);

}

function buttonSetItem_setLabel(label) {
return this.dom.setAttribute('value',label);
}

function buttonSetItem_setBehavior(textareaEnhancerMethod,args) {
var id=this.buttonSet.textareaEnhancer.id;
eval("var behavior=function() { return textareaEnhancers['"+id+"']."+textareaEnhancerMethod+"('"+args.join("','")+"');}");

this.dom.onclick=behavior;
return true;
}

// buttonSet constructor
function buttonSet(textareaEnhancer,bSetDef) {
// referencing parent object
this.textareaEnhancer=textareaEnhancer;
containerElement='div';
// creating HTML DOM button set
this.dom=document.createElement(containerElement);
this.dom.setAttribute('class','button-set');
// creating and appending buttons
this.buttons=new Array();
for (var i=0; i bDef=bSetDef[i];
// alert(bDef['label']);
// button=textareaCreateButton(textarea,bDef);
var bt=new buttonSetItem(this,bDef);
this.buttons[i]=bt;
// appending button dom to self dom
this.dom.appendChild(bt.dom);
}
// alert('created buttonSet for textarea '+this.textareaEnhancer.id);
}

// textareaEnhancer constructor
function textareaEnhancer(textarea_ref, buttonSetDef) {
// properties
this.dom=textarea_ref;
this.id=textarea_ref.id;
// previous content array for undos
this.previousContents=new Array;
// show|preview|hide
this.view='show';
// methods
this.newContent=textareaEnhancer_newContent;
// action methods
this.tagSelection=textareaEnhancer_tagSelection;
this.undoContentChange=textareaEnhancer_undoContentChange;
this.swapView=textareaEnhancer_swapView;
this.htmlTag=textareaEnhancer_htmlTag;
this.insererLien=textareaEnhancer_insererLien;
// creating button set
this.buttonSet=new buttonSet(this,buttonSetDef);
// this.buttonSet.textareaEnhancer=this;
// appending button set dom to self dom
this.dom.parentNode.insertBefore(this.buttonSet.dom,this.dom);
}

function textareaEnhancer_newContent(content) {
this.previousContents.push(this.dom.value);
this.dom.value=content;
}

/* methodes "actions" des boutons
*/

function textareaEnhancer_tagSelection(before,after) {
//var before=args[0];
//var after=args[1];
var txtarea=this.dom;
var selLength = txtarea.textLength;
var selStart = txtarea.selectionStart;
var selEnd = txtarea.selectionEnd;
if (selEnd == 1 || selEnd == 2)
selEnd = selLength;

var s1 = (txtarea.value).substring(0,selStart);
var s2 = (txtarea.value).substring(selStart, selEnd)
var s3 = (txtarea.value).substring(selEnd, selLength);
//txtarea.value = s1 + before + s2 + after + s3;
this.newContent(s1 + before + s2 + after + s3);
return true;
}
// args : tagName [, attributeName, attributeValue, attributeAskMessage]*
function textareaEnhancer_htmlTag(tagName) {
var attributes='';
for (var i=1; i // attributeName
attributeName=arguments[i]; i++;
attributeValue=arguments[i]?arguments[i]:''; i++;
askMessage=arguments[i]?arguments[i]:'';// i++;
if (askMessage)
attributeValue=window.prompt(askMessage,attributeValue);
if (attributeValue)
attributes=attributes+' '+attributeName+'="'+attributeValue+'"';
}
//alert(args);
var before='<'+tagName+attributes+'>';
var after='';
return this.tagSelection(before,after);
}

function textareaEnhancer_insererLien() {
var url=window.prompt('url ?','http://');
if (!url) return false;
var ext=window.confirm('Ouvrir dans une nouvelle fenetre ?');
var targ=ext?' target="_blank"':'';
var before='';
var after='';
return this.tagSelection(before,after);
}

function textareaEnhancer_undoContentChange() {
if (this.previousContents.length>0) {
this.dom.value=this.previousContents.pop();
return true;
} else {
alert("dernier niveau d'annulation");
return false;
}
}

function textareaEnhancer_swapView() {
switch(this.view) {
case 'show':
this.dom.setAttribute('style','display: none;');
this.view='hide';
break;
case 'hide':
default:
this.dom.setAttribute('style','display: block;');
this.view='show';
break;
}
}

/*function textareaEnhancer_showPreview() {
if (!this.previewDiv) {
this.previewDiv=document.createElement('div');
}
this.previewValue=document.createTextNode(this.dom.value);
this.previewDiv.appendChild(this.previewValue);
this.dom.append
}*/

/*function tagTextareaSelection(textareaId,textBefore,textAfter) {
alert(textareaId);
txtarea=document.getElementById(textareaId);
var selLength = txtarea.textLength;
var selStart = txtarea.selectionStart;
var selEnd = txtarea.selectionEnd;
if (selEnd == 1 || selEnd == 2)
selEnd = selLength;

var s1 = (txtarea.value).substring(0,selStart);
var s2 = (txtarea.value).substring(selStart, selEnd)
var s3 = (txtarea.value).substring(selEnd, selLength);
txtarea.value = s1 + open + s2 + close + s3;
return true;
}*/

/* generic functions required
*/
if (!window.autoIds) {
// auto id applying
function autoIds(tagName) {
tags=document.getElementsByTagName(tagName);
for (f=0; f tag=tags[f];
if (!tag.id) {
newId=tagName+'_'+f;
//alert(newId);
tag.id=newId;
}
}
}
}
if (!window.hasClass) {
function hasClass(obj,cName) {
return new RegExp('\\b'+cName+'\\b').test(obj.className);
}
}

// addEvent
if (!window.addEvent) {
function addEvent(obj, evType, fn){
if (obj.addEventListener){
obj.addEventListener(evType, fn, false);
return true;
} else if (obj.attachEvent){
var r = obj.attachEvent("on"+evType, fn);
return r;
} else {
return false;
}
}
}

/* applying script
*/
var textareaEnhancers=new Array();
function summonTextareaEnhancers() {
// setting auto ids if necessary
autoIds('textarea');
// detecting all textareas
var textareas=document.getElementsByTagName('textarea');
//alert('detected '+forms.length+' forms');
for (f=0; f var textarea=textareas[f];
var id=textarea.id;
classes=textarea.getAttribute('class');// alert(classes);
classes=classes.split(' ');
// searching for first class triggering an enhancer
var enhancerDef;
for (var g=0; g className=classes[g];
if (ENHANCETEXTAREAS_CLASSES_ENHANCERS[className]) {
// found
var tEnhancer=new textareaEnhancer(textarea,ENHANCETEXTAREAS_CLASSES_ENHANCERS[className]);
// adding object to global array
textareaEnhancers[id]=tEnhancer;
break;
}
}
}
}