User:Gracenotes/rollback.js

/**

* This script lets you use a custom summary with the rollback feature

* by adding a "sum" link wherever a rollback link appears. When you

* click "sum" you are prompted for a custom summary, and the script

* adds an additional summary parameter to the rollback URL submitting it.

*

* For usage and extra options, see the talk page.

*/

function addSumLink() {

var rbnode = [], diffnode, index = {}, gebcn = document.getElementsByClassName

? function(a, b, c) { return a ? a.getElementsByClassName(c) : [] }

: getElementsByClassName;

if (typeof rollbackLinksDisable == 'object' && rollbackLinksDisable instanceof Array)

for (var i = 0; i < rollbackLinksDisable.length; i++)

index[rollbackLinksDisable[i]] = true;

if (!('user' in index) && mw.config.get("wgCanonicalSpecialPageName") == "Contributions" ||

!('recent' in index) && mw.config.get("wgCanonicalSpecialPageName") == "Recentchanges" ||

!('watchlist' in index) && mw.config.get("wgCanonicalSpecialPageName") == "Watchlist")

rbnode = gebcn(document.getElementById("bodyContent"), "span", "mw-rollback-link");

else if (!('history' in index) && mw.config.get("wgAction") == "history")

rbnode = gebcn(document.getElementById("pagehistory"), "span", "mw-rollback-link");

else if (!('diff' in index) && (diffnode = document.getElementById("mw-diff-ntitle2")))

rbnode = gebcn(diffnode, "span", "mw-rollback-link");

for (var i = 0, len = rbnode.length; i < len; i++)

addRollbackSummaryLink(rbnode[i]);

}

function confirmRollback() {

var url = this.href;

var user = url.match(/[?&]from=([^&]*)/);

if (!user) return;

user = decodeURIComponent(user[1].replace(/\+/g, " "));

var summary = prompt("Enter a summary to use for rollback.\n\nLeave blank to use the default. $user will be replaced with \"" + user + "\".",

rollbackSummaryDefault);

if (summary == undefined)

return false;

else if (summary == "")

return true;

this.href += "&summary=" + encodeURIComponent(summary.replace(/\$user/g, user));

return true;

}

function addRollbackSummaryLink(rbnode) {

var rblink = rbnode.getElementsByTagName("a")[0];

var alink = rblink.cloneNode(true);

alink.className = ""; //don't confuse other scripts

alink.firstChild.nodeValue = "sum";

alink.onclick = confirmRollback;

rbnode.insertBefore(alink, rblink.nextSibling);

rbnode.insertBefore(document.createTextNode(" | "), alink);

}

if (typeof rollbackLinksDisable == 'undefined')

rollbackLinksDisable = [];

if (typeof rollbackSummaryDefault == 'undefined')

rollbackSummaryDefault = "";

$(addSumLink);