Banri: Created page with "/* QuickDiff - quickly view any diff link Modified to remove Wikia-specific i18n code, relies on MediaWiki:Gadget-QDmodal.js @author OneTwoThreeFall..."

2020-06-02T18:52:16Z

Created page with "/* <nowiki> QuickDiff - quickly view any diff link Modified to remove Wikia-specific i18n code, relies on MediaWiki:Gadget-QDmodal.js @author OneTwoThreeFall..."

New page

/* <nowiki>
QuickDiff - quickly view any diff link
Modified to remove Wikia-specific i18n code, relies on [[MediaWiki:Gadget-QDmodal.js]]

@author OneTwoThreeFall
@source <https://dev.fandom.com/wiki/QuickDiff>
@source <https://dev.fandom.com/wiki/MediaWiki:QuickDiff/code.js>
*/

/*jslint browser, long */
/*global jQuery, mediaWiki, dev */

(function ($, mw) {
"use strict";

// double-run protection
if (window.quickDiffLoaded) {
return;
}
window.quickDiffLoaded = true;

var diffStylesModule = "mediawiki.action.history.diff";
var modal;
var special = {};

// "Special:Diff/12345" and "Special:ComparePages" link detection
function initSpecialPageStrings() {
special.diffDefault = mw.util.getUrl("Special:Diff/");
special.compareDefault = mw.util.getUrl("Special:ComparePages");

var wiki = mw.config.get("wgDBname");
var storageKeyDiff = "QuickDiff-specialdiff_" + wiki;
var storageKeyCompare = "QuickDiff-specialcompare_" + wiki;

try {
special.diff = localStorage.getItem(storageKeyDiff);
special.compare = localStorage.getItem(storageKeyCompare);
} catch (ignore) {}

if (special.diff && special.compare) {
// using stored values - no need for api request
return;
}

$.getJSON(mw.util.wikiScript("api"), {
action: "parse",
format: "json",
prop: "text",
text: "<span class='diff'>[[Special:Diff/]]</span><span class='compare'>[[Special:ComparePages]]</span>",
disablepp: "" // note: deprecated in MW 1.26, but needed for older versions
}).done(function (data) {
var $parsed = $(data.parse.text["*"]);

special.diff = $parsed.find(".diff > a").attr("href");
special.compare = $parsed.find(".compare > a").attr("href");

try {
localStorage.setItem(storageKeyDiff, special.diff);
localStorage.setItem(storageKeyCompare, special.compare);
} catch (ignore) {}
});
}

function getDiffTitle($diff) {
var prevTitle = $diff.find("#mw-diff-otitle1 a").attr("title");
var currTitle = $diff.find("#mw-diff-ntitle1 a").attr("title");

if (prevTitle && prevTitle !== currTitle) {
return "Differences between " + prevTitle + " and " + currTitle;
}

return "Differences: " + currTitle;
}

function loadDiff(url) {
modal.show({
loading: true,
title: !modal.visible && "Loading..."
});

// add 'action=render' and 'diffonly' params to save some bytes on each request
url.extend({
action: "render",
diffonly: "1"
});

// pass through 'bot' param for rollback links if it's in use on the current page
if (mw.util.getParamValue("bot")) {
url.extend({bot: "1"});
}

$.when(
$.get(url.getRelativePath()),
mw.loader.using(diffStylesModule)
).always(function (response) {
delete url.query.action;
delete url.query.diffonly;
delete url.query.bot;

var data = {
buttons: [{
text: "open link",
href: url.toString(),
attr: {"data-disable-quickdiff": ""}
}]
};
var $diff;

if (typeof response[0] === "string") {
var $content = $(response[0]);
$diff = $content.filter("table.diff, #mw-rev-deleted-no-diff");

if (!$diff.length) {
// $content is a complete page - see if a diff can be found
// needed for diffs from special pages as they ignore action=render URL parameter
$diff = $content.find("table.diff");
}
}

if ($diff && $diff.length) {
data.content = $diff;
data.hook = "quickdiff.ready";
data.title = getDiffTitle($diff);
} else {
data.content = "Something went wrong while getting the page at " + url.toString() + ".";
}

modal.show(data);
});
}

function linkClickHandler(event) {
// ignore clicks with modifier keys to avoid overriding browser features
if (event.altKey || event.ctrlKey || event.metaKey || event.shiftKey) {
return;
}

// ignore click if link has "data-disable-quickdiff" attribute set
if (event.currentTarget.dataset.disableQuickdiff !== undefined) {
return;
}

var url = event.currentTarget.href;

try {
url = new mw.Uri(url);
} catch (ignore) {
// quit if url couldn't be parsed
// it wouldn't be a link QuickDiff could handle anyway
return;
}

// cross-domain requests not supported
if (url.host !== location.hostname) {
return;
}

// no fragment check is to ensure section links/collapsible trigger links on diff pages are ignored
var hasDiffParam = url.query.diff !== undefined
&& url.fragment === undefined;
var isSpecialDiffLink = url.path.indexOf(special.diff) === 0
|| url.path.indexOf(special.diffDefault) === 0;
var isSpecialCompareLink = url.path.indexOf(special.compare) === 0
|| url.path.indexOf(special.compareDefault) === 0;

if (hasDiffParam || isSpecialDiffLink || isSpecialCompareLink) {
event.preventDefault();
loadDiff(url);
}
}

function init() {
modal = new mw.libs.QDmodal("quickdiff-modal");

// full screen modal
mw.util.addCSS("#quickdiff-modal { height: 100%; width: 100% }");

// diff styles module was renamed in MW 1.28
if (mw.loader.getState("mediawiki.diff.styles")) {
diffStylesModule = "mediawiki.diff.styles";
}

// attach to body for compatibility with ajax-loaded content
// also, one attached event handler is better than hundreds!
$(document.body).on("click.quickdiff", "a[href]", linkClickHandler);

initSpecialPageStrings();
}

function initDependencies() {
var waitFor = [
mw.loader.using(["mediawiki.Uri", "mediawiki.util"])
];

if (!(mw.libs.QDmodal && mw.libs.QDmodal.version >= 20180212)) {
waitFor.push($.ajax({
cache: true,
dataType: "script",
url: "//runescape.wiki/w/MediaWiki:Gadget-QDmodal.js?action=raw&ctype=text/javascript"
}));
}

$.when.apply($, waitFor).done(init);
}

initDependencies();

// collect action links (edit, undo, rollback, patrol) and add them to footer
mw.hook("quickdiff.ready").add(function (modal) {
// edit/undo links use "mw-rev-head-action" class on Wikia,
// and "mw-diff-edit" or "-undo" class on MW 1.24+
var $buttons = modal.$content.find(".diff-ntitle").find(
".mw-rev-head-action, .mw-diff-edit, .mw-diff-undo, .mw-rollback-link, .patrollink"
).clone();

// remove text nodes (the brackets around each link)
$buttons.contents().filter(function (ignore, element) {
return element.nodeType === 3;
}).remove();

$buttons.find("a")
.addClass("qdmodal-button")
.attr("target", "_blank");

modal.$footer.append($buttons);
});
}(jQuery, mediaWiki));

MediaWiki:Gadget-QuickDiff.js - Revision history

Banri: Created page with "/* QuickDiff - quickly view any diff link Modified to remove Wikia-specific i18n code, relies on MediaWiki:Gadget-QDmodal.js @author OneTwoThreeFall..."