User:RRuk/sign.js

String.prototype.trim = function(){return this.replace(/^\s*|\s*$/g,"")};

if (typeof usersignature == 'undefined') usersignature = ' --\~\~\~\~\n';

if (typeof regpages == 'undefined') { // list of all none talk pages

var regpages = [

':Village pump',

':Articles for deletion',

':Requests for ',

':Reference desk',

':Deletion review',

':Templates for deletion',

'.*noticeboard.*',

':checkuser',

':arbitration',

':feedback',

':page protection',

'mediation)',

':Bot requests',

':Help desk',

':Editor review',

':Adminship survey',

':Cleanup',

':Miscellany for deletion',

':New contributors\' help page',

':Media copyright questions'

];

}

// regarded pages type encoded

if (wgCanonicalNamespace.match(/talk$/i)) var regpages = "";

for (p in regpages) if (wgPageName.indexOf(regpages[p]) != -1){regpages=false; break}

if (!regpages)

addOnloadHook(function(){

if (!(window.editform = document.forms['editform'])) return;

// Add a new checkbox to the Wiki editOptions.

sigBox = document.createElement("input");

sigBox.setAttribute('type','checkbox');

sigBox.setAttribute('name','wpSigning');

sigBox.setAttribute('id','wpSigning');

sigBox.setAttribute('checked','checked');

sigBox.defaultChecked=true;

neuB = document.createElement("label");

neuB.appendChild(sigBox);

neuB.appendChild(document.createTextNode("Sign"));

neuB.setAttribute('for','wpSigning');

neuB.setAttribute('title','Sign this edit automatic.');

function setSigBox() { // switch enable box

if (editform.wpMinoredit.checked) sigBox.setAttribute('disabled','disabled');

else sigBox.removeAttribute('disabled');

};

var txtarea=editform.elements['wpTextbox1'];

var txtOld=txtarea.value.trim();

// txtOld_l=txtOld.length

var txtOldEnd=txtOld.slice(-24);

var sig = /~{3}/g;

if (!tNode){

//editform.insertBefore(neuB, editform.elements['wpWatchthis']); // maybe FIXME: raised an NS_DOM_ERR!

var tNode = editform.elements['wpMinoredit'].parentNode; // DOM workaround!?

tNode.divs = tNode.getElementsByTagName("DIV");

tNode.divs = tNode.divs.item(tNode.divs.length-1); // last div

tNode.insertBefore(neuB, tNode.divs);

setSigBox();

}

function doSign(event){

if(editform.onsubmit==''){ // only once!

removeEvent(editform.wpSave,"click",doSign);

removeEvent(editform.wpPreview,"click",doSign);

}

if(editform.onsubmit=='') removeEvent(editform.wpSave,"click",doSign); // only once!

if(editform.wpMinoredit.checked || !sigBox.checked) return;

txtarea.focus();

var cOld = txtOld.match(/.*?~{3}.*?<\/nowiki>/g); // exception for nowiki

if (cOld) cOld = cOld.length;

cNew = txtarea.value.match(sig); if (cNew) cNew = cNew.length;

if (cNew > cOld){ // if there are a sign, check for true

var cNew2 = txtarea.value.match(/\{\{subst\:unsig.*?~{3}\}\}/); // exception for Template:unsigned

cNew -= (cNew2)?cNew2.length:0;

}

if(cNew <= cOld){ // if nothing then search a set position

txt=txtarea.value.trim();

txtEnd=txt.slice(-24);

if(txtOldEnd!=txtEnd) return txtarea.value = txt + usersignature; // aut. underwrite

else { // post between

pos = getCaretPos(txtarea);

pos = txt.indexOf('\n', pos); // go to the post-end

txtEnds = txt.substr(pos,24).replace(/(^\s*)/,""); // after

txtpEnds = txt.slice(pos-18,pos); // before

oldp = txtOld.indexOf(txtEnds);

if(oldp!=-1 && oldp < pos - 3 && txtOld.indexOf(txtpEnds+RegExp.$1+txtEnds)==-1) // if some added

return txtarea.value = txt.slice(0,pos).trim() + usersignature + txt.slice(pos+1);

}

// FIXME: then the edit-end is not found!?

}

else if(!sig.test(txtOld) || cOld < cNew) return;

if (event) event=(window.Event)? event.target: event.srcElement;

if (event.name == 'wpPreview') return; // not for preview

return editform.onsubmit=new Function("editform.onsubmit='';"

+"return confirm('No signing was found. Continue anyway?')"); //warn if saving without signature

};

addEvent(editform.wpSave,"click", doSign);

addEvent(editform.wpPreview,"click", doSign);

addEvent(editform.wpMinoredit,"click", setSigBox);

});

function getCaretPos(txtObj){

if (txtObj.setSelectionRange) return txtObj.selectionStart; // NS like

else if(!document.selection) return 0; // not IE like

var c="\001", pos=0;

var range=document.selection.createRange();

var txt=range.text, dul=range.duplicate();

dul.moveToElementText(txtObj);

range.text=txt+c;

pos=(dul.text.indexOf(c));

range.moveStart('character',-1);

range.text="";

return pos;

};

/* add/removeEvent Original idea by John Resig

Tweaked by Scott Andrew LePera, Dean Edwards and Peter-Paul Koch

Fixed for IE by Tino Zijdel (crisp) @date 2005-10 */

// *** end ***