User:NQ/custom-scripts/diffhistoryoffset.js

//Copied entirely from [[User:Gary/link intermediate revisions.js]] with minor tweaks

function createDiffHistoryLink()
{
	if (!mw.util.getParamValue('oldid')) return false;
	$.get(mw.config.get('wgScriptPath') + '/api.php', { action: 'query', prop: 'revisions', titles: mw.config.get('wgPageName'), rvprop: 'timestamp', rvstartid: mw.config.get('wgRevisionId'), rvendid: mw.util.getParamValue('oldid'), rvlimit: '5000', format: 'json', indexpageids: 1 }, DiffHistoryCallback);
}

function twoDigitPadding(integer)
{
	var string = integer.toString();
	if (string.length == 1) return '0' + integer;
	else return integer;
}

function DiffHistoryCallback(response)
{
	if (!response['query'] || !response['query']['pages'] || response['query']['pageids'][0] == -1) return false;
		
	var pageId = response['query']['pageids'][0];
	var page = response['query']['pages'][pageId];
	var revisions = page['revisions'];
	if (!revisions) return false;
	
	
	var offset = new Date(revisions[0]['timestamp']);
	offset = offset.getUTCFullYear().toString() + twoDigitPadding(offset.getUTCMonth() + 1).toString() + twoDigitPadding(offset.getUTCDate()).toString() + twoDigitPadding(offset.getUTCHours()).toString() + twoDigitPadding(offset.getUTCMinutes() + 1).toString() + twoDigitPadding(offset.getUTCSeconds()).toString();

/*  var diffHist = document.createElement("a");
	diffHist.href = mw.config.get('wgScript') + '?title=' + mw.config.get('wgPageName') + '&action=history&offset=' + offset;
	diffHist.innerHTML = "<span>(diff history offset)</span>";
	document.getElementById("mw-diff-ntitle5").appendChild(diffHist); */	
	
    mw.util.addPortletLink('p-tb', mw.config.get('wgScript') + '?title=' + mw.config.get('wgPageName') + '&action=history&offset=' + offset, "(Diff History)");
}

$(createDiffHistoryLink);