MediaWiki:Gadget-CronoAvanzataBase.js

if (!window.histCombTalk) histCombTalk = 'd';
if (!window.histCombContrib) histCombContrib = 'c';
if (!window.histCombMyBg) histCombMyBg = '#F8D3F4';
 
var pagehis, histRow, histSize, isCombEdits = false;
 
function histCombonLoad(){
	pagehis = document.getElementById('pagehistory');
	if (!pagehis) return;
	histRow = pagehis.getElementsByTagName('li');
	histSize = new Array (histRow.length);
	var row, spans, i, aa, author, author_p = '', size_digits;
	var sameAuthor = 0, thisMinor, allMinor = true;
	 
	for (var rr=histRow.length-1; rr>=0; rr--){ //main loop: all rows bottom to top
		row = histRow[rr];
		thisMinor = false;
		spans = row.getElementsByTagName('span');
		//check all spans
		for (i=0; i<spans.length; i++)
			switch (spans[i].className){
				case 'history-size':
					size_digits = spans[i].innerHTML.match(/\d+/g);
					histSize[rr] = size_digits ? size_digits.join('') : '0';
					if (histSize[rr+1]){ 
						spans[i].title = spans[i].innerHTML.replace(/&nbsp;/g,' ');
						insertDiffValue(spans[i], histSize[rr] - histSize[rr+1]);
					}
					break;
				case 'minor':
					thisMinor = true;
					break;
				case 'history-user': // get user name and shorten talk/contribs
					aa = spans[i].getElementsByTagName('a');
					author = aa[1].title.split(':')[1];
					aa[1].innerHTML = histCombTalk;
					if (aa.length >= 3 && (aa[2].title.indexOf(':Contributi/') != -1)) //for anons this could be 'block'
						aa[2].innerHTML = histCombContrib;
					break;
				case 'mw-history-undo':
					aa = spans[i].getElementsByTagName('a')[0];
					aa.title = aa.innerHTML;
					aa.innerHTML = '×';
					break;
				//case 'comment': histSumm = spans[i].innerHTML break 
			}//end switch inside for

			if (!histSize[rr] && histSize[rr+1])
				histSize[rr] = histSize[rr+1]; //assume it was '(un)protect' edit

			if (mw.config.get('wgUserName') == author)
				histRow[rr].style.backgroundColor = histCombMyBg;
			//check how many consequent edits
			if (author == author_p) 
				sameAuthor++;
			else {
				if (sameAuthor > 1)
					createCombineEdit(rr+1, sameAuthor, allMinor);
				sameAuthor = 1;
				author_p = author;
				allMinor = thisMinor;
			}
			if (!thisMinor)
				allMinor = false;
	}//main loop

	//collapse top editor too
	if (sameAuthor>1) {
		createCombineEdit(0, sameAuthor, allMinor);
		if (histRow.length > sameAuthor && !window.histCombNoCollapse) //if collapsing top row - make next row selected
			histRow[sameAuthor].getElementsByTagName('input')[0].click();
	}

	//add  "expand/collapse all" link
	if (isCombEdits) { 
		var togAll = document.createElement('a');
		togAll.appendChild(document.createTextNode('[±]'));
		togAll.href = 'javascript:mw.histCombtoggleAll()';
		//togAll.setAttribute("onclick", "mw.histCombtoggleAll()");
		pagehis.parentNode.insertBefore(togAll, pagehis.previousSibling);
	}
}

function createCombineEdit(m, len, isMinor){ //creates collapsing link for row m down to row m+len
	var row = histRow[m];
	row.style.listStyle = 'none none';
	row.style.position = 'relative';
	var plus = document.createElement('a');
	plus.className = 'collapsedEdits';
	plus.appendChild(document.createTextNode('[–]'));
	plus.style.position = 'absolute';
	plus.style.left = '-22px';
	plus.style.top = '2px';
	plus.href = 'javascript:mw.histCombtoggle('+m+','+len+','+isMinor+')';
	//plus.setAttribute("onclick", 'mw.histCombtoggle('+m+','+len+','+isMinor+')');
	row.appendChild(plus);
	if (!window.histCombNoCollapse) mw.histCombtoggle(m, len, isMinor); //and collapse
	isCombEdits = true;

	//unexplained IE bug: in row just under collapsed edit radios were jumping to the left, links were unclickable
	if (navigator.userAgent.indexOf('MSIE') != -1 && m+len < histRow.length){ //make all elements 'relative'
		var els = histRow[m+len].getElementsByTagName('*');
		for (i=0; i<els.length; i++)
			if (els[i].style && !els[i].style.position) els[i].style.position = 'relative';
	}
}

function insertDiffValue(span, value){
	var html, class2;
	if (value>0) {
		html = '(+' + value + ')';
		class2 = ' mw-plusminus-pos';
	} else if (value<0) {
		html = '(' + value + ')';
		class2 = ' mw-plusminus-neg';
	} else {
		html = '(0)';
		class2 = ' mw-plusminus-null';
	}
	span.style.fontWeight = (value < -500) ? 'bold' : 'normal';
	span.innerHTML = html;
	span.className = span.className.split(' ')[0] + class2;
}

mw.histCombtoggle = function (m, len, isMinor) { //handler for collapsing link
	var row = histRow[m];
	var spans = row.getElementsByTagName('span');
	var plus = row.lastChild;
	var radios = row.getElementsByTagName('input');
	var topDiff = row.getElementsByTagName('a')[ m > 0 ? 1 : 0]; // "diff to last" in the combined edit
	var i, clss, bottomDiff, oldid;
	var isHiding = (plus.innerHTML == '[–]');
	if (isHiding) {//need to collapse −
		plus.innerHTML = '[' + len + ']';
		row.style.borderLeft = '1px solid transparent';
		//hide other rows
		for (i=m+1; i<m+len; i++) histRow[i].style.display = 'none';
		//"diff from last" link: get oldid from the lowest collapsed edit
		bottomDiff = histRow[m+len-1].getElementsByTagName('a')[1].href;
		if (bottomDiff.indexOf('&diff=') == -1)
			topDiff.style.visibility = 'hidden'; //the very 1st edit
		oldid = bottomDiff.match(/oldid=(\d+)/)[1];
		topDiff['old'] = topDiff.href;
		topDiff.href = topDiff.href.replace(/&oldid=\d+/, '&oldid='+oldid);
	}else{ //need to expand
		plus.innerHTML = '[–]';
		//show other rows and visually reference the whole group
		row.style.borderLeft = '1px dotted gray';
		for (i=m+1; i<m+len; i++){
			histRow[i].style.display = 'block';
			histRow[i].style.borderLeft = '1px dotted gray';
			histRow[i].style.listStyle = 'none none';
		}
		histRow[m+len-1].style.borderBottom = '1px dotted gray';
		topDiff.href = topDiff['old'];
		topDiff.style.visibility = 'visible';
	}
	//hide/show/modify spans in this row
	for (i=0; i<spans.length; i++)
		switch (spans[i].className.split(' ')[0]){
		case 'minor':
			spans[i].style.display = (isHiding && !isMinor)?'none':'inline';
			break;
		case 'history-size': //switch to  combined diff size and back
			insertDiffValue(spans[i], histSize[m] - (isHiding ? histSize[m+len] : histSize[m+1]));
			break;
		case 'comment': //hide/show
			spans[i].style.display = (isHiding && !window.histCombLeaveComment)?'none':'inline';
			break;
		case 'mw-history-undo':
			var undoLnk = spans[i].getElementsByTagName('a')[0];
			if (isHiding) {
				undoLnk['old'] = undoLnk.href;
				undoLnk.href = undoLnk.href.replace(/&undoafter=\d+/, '&undoafter='+oldid);
			}else
				undoLnk.href = undoLnk['old'];
			break;
		//case 'history-user':
	}
};

mw.histCombtoggleAll = function () {
	var links = $('a.collapsedEdits');
	var state = (links[0].innerHTML == '[–]');
	for (var i=0; i<links.length; i++)
		if (state == (links[i].innerHTML == '[–]'))
			eval(links[i].href);
};

if (mw.config.get('wgAction') == 'history')
	mw.loader.using( 'mediawiki.util' ).done( function () {
		histCombonLoad();
	} );