User:Js/markZeroEdits.js

//see [[user:js/markZeroEdits]]
 
addOnloadHook(markZeroEdits)
 
 
 
function markZeroEdits(){
 
 
var i = 0, j, k, entry, plusminus, isHRDone
var rows, td, aa, sp, step
var firstEditor, thisEditor, isRevert
 
 mzRevertRegExp = window.mzRevertRegExp || /^(BOT[ -]*)?Reverted|^Reverting|^Undid revision /
 mzCSS = window.mzCSS || 'table.revert-edit * {color:#777799; }\
table.revert-edit td {text-decoration: line-through}\
table.zero-edit * {color:#777799}'
 addCSS(mzCSS)
 
 
 while (entry=document.getElementById('RCM'+(i++))){//loop through all multiple edits
 
  //check if this is a  0 size diff
  while ((entry=entry.parentNode) && entry.nodeName!='TR');
  plusminus = entry.cells[1].getElementsByTagName('span')[0]
  if (!plusminus || plusminus.className!='mw-plusminus-null') continue
 
  //get all collapsed edits inside hidden DIV
  rows = document.getElementById('RCI' + (i-1)).firstChild.rows
  //some initial values
  firstEditor = '' //first editor (who is possibly reverted later)
 
  //check all edits from bottom, i.e. by the timeline
  for (j=rows.length-1; j>=0; j--){
    //find editor
    td = rows[j].cells[1]
    aa = td.getElementsByTagName('a')
    for (k=0; k<aa.length && /&oldid=/.test(aa[k].href); k++);
    thisEditor = aa[k].href
    //compare with previous editor
    if (!firstEditor){ //this is a beginning of possible edit-revert block
      firstEditor = thisEditor
      isRevert = false
      continue
    }else if (thisEditor==firstEditor && j>0){ //first editor keeps making several edits
      continue 
    }
    //we now have either a different editor of the last edit
    //find edit summary
    sp = aa[k]
    while ((sp=sp.nextSibling) && sp.nodeName!='SPAN');
    //check if this was a revert
    if (!sp) break
    if (!mzRevertRegExp.test(pickUpText(sp).substring(1))) break
    //by default do not trust self reverts and reverts by unregs
    if (thisEditor==firstEditor && !window.mzTrustSelfRv) break
    if (/Special:Contributions/.test(thisEditor) && !window.mzTrustUnregRv) break
    //all checks done, this looks like a revert after all
    isRevert = true
    firstEditor = '' //get ready for the next block of edits
  }
 
  //categorize the entry
  while ((entry=entry.parentNode) && entry.nodeName!='TABLE');
  if (isRevert){
    entry.className += 'revert-edit'
    if (window.mzMoveReverts)
     do{
       step = entry.nextSibling; entry.parentNode.appendChild(entry); entry = step
     }while (entry && entry.nodeName != 'TABLE' && entry.nodeName != 'HR')
  }else{
    entry.className += 'zero-edit'
  }
 
 }//while
 
function addCSS(text){ //could use createStyleSheet for IE as well
 var s = document.createElement('style')
 s.setAttribute('type', 'text/css')
 if (s.styleSheet) s.styleSheet.cssText = text //IE
 else s.appendChild(document.createTextNode(text))
 document.getElementsByTagName('head')[0].appendChild(s)
}
 
}