User:CRLF/common.js

function rvt(undop, undoafterp, c) { // Implements one-click undo
    $.ajax({
        url: 'https://www.explainxkcd.com/wiki/api.php',
        data: {
            format: 'json',
            action: 'edit',
            title: $("#firstHeading").text().substr(33, $("#firstHeading").text().length - 34),
            undo: undop,
            undoafter: undoafterp,
            summary: "Reverted vandalism with [[User:CRLF/common.js]]",
            token: mw.user.tokens.get('csrfToken')
        },
        dataType: 'json',
        type: 'POST',
        success: function () { if (c) { $('.mw-diff-undo > a').text("success"); } else { $('#link' + undop).text("success"); } }
    });
}
try{
var href = $('.mw-diff-undo > a').attr('href').split("=");
var undop = href[4];
var undoafterp = href[3].substr(0, href[3].length - 5);
$('.mw-diff-undo > a').removeAttr('href');
$('.mw-diff-undo > a').attr('onclick', 'rvt(' + undop + ',' + undoafterp + ',1)');} catch(e) {console.log(e);console.log("assumed not undoable");}

function lastTwoRevs(page) { // Implements undo links on contribs page
    $.ajax({
        url: 'https://www.explainxkcd.com/wiki/api.php',
        type: 'GET',
        dataType: 'json',
        data: { action: 'query', prop: 'revisions', titles: page, rvprop: 'ids', formatversion: 2 },
        success: function (data) {
            return { 'u': data["query"]["pages"][0]["revisions"][0]["revid"], 'a': data["query"]["pages"][0]["revisions"][0]["parentid"] }
        }
    })
}

for (var i in $('mw-contributions-title')) {
    var title = i.attr("title");
    var res = lastTwoRevs(title);
    $('<a id="link' + res[u] + '" onclick="rvt(' + res[u] + ',' + res[a] + ',0)">[rvt]</a>').insertAfter(i);
}