User:Gary/link intermediate revisions.js

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Documentation for this user script can be added at User:Gary/link intermediate revisions.

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/*
	LINK INTERMEDIATE REVISIONS
	Description: Link intermediate revisions when viewing a diff, to easily see which revisions are between the two diffs currently being viewed.
*/

if (typeof(unsafeWindow) != 'undefined')
{
	console = unsafeWindow.console;
	importScriptURI = unsafeWindow.importScriptURI;
	mw = unsafeWindow.mw;
}

function createDiffMultiLink()
{
	// split URL
	if (!mw.util.getParamValue('diff') || !mw.util.getParamValue('oldid')) return false;
	var url = mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/api.php?action=query&prop=revisions&titles=' + mw.config.get('wgPageName') + '&rvprop=timestamp&rvstartid=' + mw.util.getParamValue('diff') + '&rvendid=' + mw.util.getParamValue('oldid') + '&callback=diffMultiCallback&format=json&indexpageids=1';
	importScriptURI(url);
}

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

diffMultiCallback = function(response)
{
	if (!response['query'] || !response['query']['pages'] || response['query']['pageids'][0] == -1) return false;
	var diffMultis = document.getElementsByClassName('diff-multi');
	if (diffMultis.length == 0) return false;
	var pageId = response['query']['pageids'][0];
	var page = response['query']['pages'][pageId];
	var revisions = page['revisions'];
	if (!revisions) return false;
	
	var oldid = new Date(revisions[revisions.length - 1]['timestamp']);
	oldid = oldid.getUTCFullYear().toString() + twoDigitPadding(oldid.getUTCMonth() + 1).toString() + oldid.getUTCDate().toString() + twoDigitPadding(oldid.getUTCHours() + 1).toString() + twoDigitPadding(oldid.getUTCMinutes() + 1).toString() + twoDigitPadding(oldid.getUTCSeconds() + 1).toString();
	var diff = new Date(revisions[0]['timestamp']);
	diff = diff.getUTCFullYear().toString() + twoDigitPadding(diff.getUTCMonth() + 1).toString() + diff.getUTCDate().toString() + twoDigitPadding(diff.getUTCHours() + 1).toString() + twoDigitPadding(diff.getUTCMinutes() + 1).toString() + twoDigitPadding(diff.getUTCSeconds() + 1).toString();
	
	var diffMulti = diffMultis[0];
	var a = document.createElement('a');
	a.href = mw.config.get('wgScript') + '?title=' + mw.config.get('wgPageName') + '&action=history&offset=' + diff + '&limit=' + revisions.length;
	a.appendChild(diffMulti.firstChild);
	diffMulti.appendChild(a);
}

$(document).ready(function()
{
	createDiffMultiLink();
});

if (typeof(unsafeWindow) != 'undefined')
{
	unsafeWindow.diffMultiCallback = diffMultiCallback;
}