User:Ilmari Karonen/rollbacksummary.js

// Prompt for an edit summary when clicking a rollback link

$(function {    var serverRe = mw.config.get('wgServer').replace(/([^A-Za-z0-9_])/g, "\\$1");     var scriptRe = mw.config.get('wgScript').replace(/([^A-Za-z0-9_])/g, "\\$1");     var rollbackRe = new RegExp ("^(" + serverRe + ")?" + scriptRe + "\\?([^#]*&)?action=rollback(&|$)");   var promptSummary = function  {        var summary = prompt("Enter rollback summary (or leave as \"default\" to use default summary):", "default");        if (summary == null || summary == "") return false;        if (summary == "default") return true;        this.href = this.href.replace("?", "?summary=" + encodeURIComponent(summary) + "&");        return true;    };    var links = document.getElementsByTagName("a");    for (var i = 0; i < links.length; i++) {        if (rollbackRe.test(links[i].href)) links[i].onclick = promptSummary;    } });