Jump to content

User:Drewmutt/yourscript.js

From Wikipedia, the free encyclopedia
Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.
/**
 * Real-Time Recent Changes
 * https://github.com/Krinkle/mw-gadget-rtrc
 *
 * @author Timo Tijhof
 * @license https://krinkle.mit-license.org/@2016
 */
/*global alert */
(function ($, mw)
{
    'use strict';

    /**
     * Configuration
     * -------------------------------------------------
     */
    var
            appVersion = 'v1.3.2',
            conf = mw.config.get([
                'skin',
                'wgAction',
                'wgCanonicalSpecialPageName',
                'wgPageName',
                'wgServer',
                'wgTitle',
                'wgUserLanguage',
                'wgDBname',
                'wgScriptPath'
            ]),
    // Can't use mw.util.wikiScript until after #init
            apiUrl = conf.wgScriptPath + '/api.php',
            cvnApiUrl = '//cvn.wmflabs.org/api.php',
            oresApiUrl = '//ores.wikimedia.org/scores/' + conf.wgDBname + '/',
            oresModel = false,
            intuitionLoadUrl = '//tools.wmflabs.org/intuition/load.php?env=mw',
            docUrl = '//meta.wikimedia.org/wiki/User:Krinkle/Tools/Real-Time_Recent_Changes?uselang=' + conf.wgUserLanguage,
    // 32x32px
            ajaxLoaderUrl = '//upload.wikimedia.org/wikipedia/commons/d/de/Ajax-loader.gif',
            annotationsCache = {
                patrolled: {},
                cvn: {},
                ores: {}
            },
    // See annotationsCacheUp()
            annotationsCacheSize = 0,

            /**
             * Info from the wiki
             * -------------------------------------------------
             */
            userHasPatrolRight = false,
            rcTags = [],
            wikiTimeOffset,

            /**
             * State
             * -------------------------------------------------
             */
            updateFeedTimeout,

            rcDayHeadPrev,
            skippedRCIDs = [],
            monthNames,

            prevFeedHtml,
            updateReq,

            /**
             * Feed options
             * -------------------------------------------------
             */
            defOpt = {
                rc: {
                    // Timestamp
                    start: undefined,
                    // Timestamp
                    end: undefined,
                    // Direction "older" (descending) or "newer" (ascending)
                    dir: 'older',
                    // Array of namespace ids
                    namespace: undefined,
                    // User name
                    user: undefined,
                    // Tag ID
                    tag: undefined,
                    // Filters
                    hideliu: false,
                    hidebots: true,
                    unpatrolled: false,
                    limit: 25,
                    // Type filters are "show matches only"
                    typeEdit: true,
                    typeNew: true
                },

                app: {
                    refresh: 5,
                    cvnDB: false,
                    ores: false,
                    massPatrol: false,
                    autoDiff: false
                }
            },
            aliasOpt = {
                // Back-compat for v1.0.4 and earlier
                showAnonOnly: 'hideliu',
                showUnpatrolledOnly: 'unpatrolled'
            },
            opt = $(true, {}, defOpt),

            timeUtil,
            message,
            msg,
            navSupported = conf.skin === 'vector',
            rAF = window.requestAnimationFrame || setTimeout,

            currentDiff,
            currentDiffRcid,
            $wrapper, $body, $feed,
            $RCOptionsSubmit;

    /**
     * Utility functions
     * -------------------------------------------------
     */

    /**
     * Prepend a leading zero if value is under 10
     *
     * @param {number} num Value between 0 and 99.
     * @return {string}
     */
    function pad(num)
    {
        return (num < 10 ? '0' : '') + num;
    }

    timeUtil = {
        // Create new Date object from an ISO-8601 formatted timestamp, as
        // returned by the MediaWiki API (e.g. "2010-04-25T23:24:02Z")
        newDateFromISO: function (s)
        {
            return new Date(Date.parse(s));
        },

        /**
         * Apply user offset
         *
         * Only use this if you're extracting individual values from the object (e.g. getUTCDay or
         * getUTCMinutes). The internal timestamp will be wrong.
         *
         * @param {Date} d
         * @return {Date}
         */
        applyUserOffset: function (d)
        {
            var parts,
                    offset = mw.user.options.get('timecorrection');

            // This preference has no default value, it is null for users that don't
            // override the site's default timeoffset.
            if (offset)
            {
                parts = offset.split('|');
                if (parts[0] === 'System')
                {
                    // Ignore offset value, as system may have started or stopped
                    // DST since the preferences were saved.
                    offset = wikiTimeOffset;
                } else
                {
                    offset = Number(parts[1]);
                }
            } else
            {
                offset = wikiTimeOffset;
            }
            // There is no way to set a timezone in javascript, so instead we pretend the
            // UTC timestamp is different and use getUTC* methods everywhere.
            d.setTime(d.getTime() + (offset * 60 * 1000));
            return d;
        },

        // Get clocktime string adjusted to timezone of wiki
        // from MediaWiki timestamp string
        getClocktimeFromApi: function (s)
        {
            var d = timeUtil.applyUserOffset(timeUtil.newDateFromISO(s));
            // Return clocktime with leading zeros
            return pad(d.getUTCHours()) + ':' + pad(d.getUTCMinutes());
        }
    };

    /**
     * Main functions
     * -------------------------------------------------
     */

    /**
     * @param {Date} date
     * @return {string} HTML
     */
    function buildRcDayHead(date)
    {
        var current = date.getDate();
        if (current === rcDayHeadPrev)
        {
            return '';
        }
        rcDayHeadPrev = current;
        return '<div class="mw-rtrc-heading"><div><strong>' + date.getDate() + ' ' + monthNames[date.getMonth()] + '</strong></div></div>';
    }

    /**
     * @param {Object} rc Recent change object from API
     * @return {string} HTML
     */
    function buildRcItem(rc)
    {
        var diffsize, isUnpatrolled, isAnon, typeSymbol, itemClass, diffLink, el, item;

        // Get size difference (can be negative, zero or positive)
        diffsize = rc.newlen - rc.oldlen;

        // Convert undefined/empty-string values from API into booleans
        isUnpatrolled = rc.unpatrolled !== undefined;
        isAnon = rc.anon !== undefined;

        // typeSymbol, diffLink & itemClass
        typeSymbol = '&nbsp;';
        itemClass = [];

        if (rc.type === 'new')
        {
            typeSymbol += '<span class="newpage">N</span>';
        }

        if ((rc.type === 'edit' || rc.type === 'new') && userHasPatrolRight && isUnpatrolled)
        {
            typeSymbol += '<span class="unpatrolled">!</span>';
        }

        if (rc.oldlen > 0 && rc.newlen === 0)
        {
            itemClass.push('mw-rtrc-item-alert');
        }

        /*
         Example:

         <div class="mw-rtrc-item mw-rtrc-item-patrolled" data-diff="0" data-rcid="0" user="Abc">
         <div first>(<a>diff</a>) <span class="unpatrolled">!</span> 00:00 <a>Page</a></div>
         <div user><a class="user" href="//User:Abc">Abc</a></div>
         <div comment><a href="//User talk:Abc">talk</a> / <a href="//Special:Contributions/Abc">contribs</a>&nbsp;<span class="comment">Abc</span></div>
         <div class="mw-rtrc-meta"><span class="mw-plusminus mw-plusminus-null">(0)</span></div>
         </div>
         */

        // build & return item
        item = buildRcDayHead(timeUtil.newDateFromISO(rc.timestamp));
        item += '<div class="mw-rtrc-item ' + itemClass.join(' ') + '" data-diff="' + rc.revid + '" data-rcid="' + rc.rcid + '" user="' + rc.user + '">';

        if (rc.type === 'edit')
        {
            diffLink = '<a class="rcitemlink diff" href="' +
                    mw.util.wikiScript() + '?diff=' + rc.revid + '&oldid=' + rc.old_revid + '&rcid=' + rc.rcid +
                    '">' + mw.message('diff').escaped() + '</a>';
        } else if (rc.type === 'new')
        {
            diffLink = '<a class="rcitemlink newPage">new</a>';
        } else
        {
            diffLink = mw.message('diff').escaped();
        }

        item += '<div first>' +
                '(' + diffLink + ') ' + typeSymbol + ' ' +
                timeUtil.getClocktimeFromApi(rc.timestamp) +
                ' <a class="mw-title" href="' + mw.util.getUrl(rc.title) + '?rcid=' + rc.rcid + '" target="_blank">' + rc.title + '</a>' +
                '</div>' +
                '<div user>&nbsp;<small>&middot;&nbsp;' +
                '<a href="' + mw.util.getUrl('User talk:' + rc.user) + '" target="_blank">' + mw.message('talkpagelinktext').escaped() + '</a>' +
                ' &middot; ' +
                '<a href="' + mw.util.getUrl('Special:Contributions/' + rc.user) + '" target="_blank">' + mw.message('contribslink').escaped() + '</a>' +
                '&nbsp;</small>&middot;&nbsp;' +
                '<a class="mw-userlink" href="' + mw.util.getUrl((mw.util.isIPv4Address(rc.user) || mw.util.isIPv6Address(rc.user) ? 'Special:Contributions/' : 'User:') + rc.user) + '" target="_blank">' + rc.user + '</a>' +
                '</div>' +
                '<div comment>&nbsp;<span class="comment">' + rc.parsedcomment + '</span></div>';

        if (diffsize > 0)
        {
            el = diffsize > 399 ? 'strong' : 'span';
            item += '<div class="mw-rtrc-meta"><' + el + ' class="mw-plusminus mw-plusminus-pos">(+' + diffsize.toLocaleString() + ')</' + el + '></div>';
        } else if (diffsize === 0)
        {
            item += '<div class="mw-rtrc-meta"><span class="mw-plusminus mw-plusminus-null">(0)</span></div>';
        } else
        {
            el = diffsize < -399 ? 'strong' : 'span';
            item += '<div class="mw-rtrc-meta"><' + el + ' class="mw-plusminus mw-plusminus-neg">(' + diffsize.toLocaleString() + ')</' + el + '></div>';
        }

        item += '</div>';
        return item;
    }

    /**
     * @param {Object} newOpt
     * @param {string} [mode=normal] One of 'quiet' or 'normal'
     * @return {boolean} True if no changes were made, false otherwise
     */
    function normaliseSettings(newOpt, mode)
    {
        var mod = false;

        // MassPatrol requires a filter to be active
        if (newOpt.app.massPatrol && !newOpt.rc.user)
        {
            newOpt.app.massPatrol = false;
            mod = true;
            if (mode !== 'quiet')
            {
                alert(msg('masspatrol-requires-userfilter'));
            }
        }

        // MassPatrol implies AutoDiff
        if (newOpt.app.massPatrol && !newOpt.app.autoDiff)
        {
            newOpt.app.autoDiff = true;
            mod = true;
        }
        // MassPatrol implies fetching only unpatrolled changes
        if (newOpt.app.massPatrol && !newOpt.rc.unpatrolled)
        {
            newOpt.rc.unpatrolled = true;
            mod = true;
        }

        return !mod;
    }

    function fillSettingsForm(newOpt)
    {
        var $settings = $($wrapper.find('.mw-rtrc-settings')[0].elements).filter(':input');

        if (newOpt.rc)
        {
            $.each(newOpt.rc, function (key, value)
            {
                var $setting = $settings.filter(function ()
                        {
                            return this.name === key;
                        }),
                        setting = $setting[0];

                if (!setting)
                {
                    return;
                }

                switch (key)
                {
                    case 'limit':
                        setting.value = value;
                        break;
                    case 'namespace':
                        if (value === undefined)
                        {
                            // Value "" (all) is represented by undefined.
                            $setting.find('option').eq(0).prop('selected', true);
                        } else
                        {
                            $setting.val(value);
                        }
                        break;
                    case 'user':
                    case 'start':
                    case 'end':
                    case 'tag':
                        setting.value = value || '';
                        break;
                    case 'hideliu':
                    case 'hidebots':
                    case 'unpatrolled':
                    case 'typeEdit':
                    case 'typeNew':
                        setting.checked = value;
                        break;
                    case 'dir':
                        if (setting.value === value)
                        {
                            setting.checked = true;
                        }
                        break;
                }
            });
        }

        if (newOpt.app)
        {
            $.each(newOpt.app, function (key, value)
            {
                var $setting = $settings.filter(function ()
                        {
                            return this.name === key;
                        }),
                        setting = $setting[0];

                if (!setting)
                {
                    setting = document.getElementById('rc-options-' + key);
                    $setting = $(setting);
                }

                if (!setting)
                {
                    return;
                }

                switch (key)
                {
                    case 'cvnDB':
                    case 'ores':
                    case 'massPatrol':
                    case 'autoDiff':
                        setting.checked = value;
                        break;
                    case 'refresh':
                        setting.value = value;
                        break;
                }
            });
        }

    }

    function readSettingsForm()
    {
        // jQuery#serializeArray is nice, but doesn't include "value: false" for unchecked
        // checkboxes that are not disabled. Using raw .elements instead and filtering
        // out <fieldset>.
        var $settings = $($wrapper.find('.mw-rtrc-settings')[0].elements).filter(':input');

        opt = $.extend(true, {}, defOpt);

        $settings.each(function (i, el)
        {
            var name = el.name;

            switch (name)
            {
                // RC
                case 'limit':
                    opt.rc[name] = Number(el.value);
                    break;
                case 'namespace':
                    // Can be "0".
                    // Value "" (all) is represented by undefined.
                    // TODO: Turn this into a multi-select, the API supports it.
                    opt.rc[name] = el.value.length ? Number(el.value) : undefined;
                    break;
                case 'user':
                case 'start':
                case 'end':
                case 'tag':
                    opt.rc[name] = el.value || undefined;
                    break;
                case 'hideliu':
                case 'hidebots':
                case 'unpatrolled':
                case 'typeEdit':
                case 'typeNew':
                    opt.rc[name] = el.checked;
                    break;
                case 'dir':
                    // There's more than 1 radio button with this name in this loop,
                    // use the value of the first (and only) checked one.
                    if (el.checked)
                    {
                        opt.rc[name] = el.value;
                    }
                    break;
                // APP
                case 'cvnDB':
                case 'ores':
                case 'massPatrol':
                case 'autoDiff':
                    opt.app[name] = el.checked;
                    break;
                case 'refresh':
                    opt.app[name] = Number(el.value);
                    break;
            }
        });

        if (!normaliseSettings(opt))
        {
            // TODO: Optimise this, no need to repopulate the entire settings form
            // if only 1 thing changed.
            fillSettingsForm(opt);
        }
    }

    function getPermalink()
    {
        var uri = new mw.Uri(mw.util.getUrl(conf.wgPageName)),
                reducedOpt = {};

        $.each(opt.rc, function (key, value)
        {
            if (defOpt.rc[key] !== value)
            {
                if (!reducedOpt.rc)
                {
                    reducedOpt.rc = {};
                }
                reducedOpt.rc[key] = value;
            }
        });

        $.each(opt.app, function (key, value)
        {
            // Don't permalink MassPatrol (issue Krinkle/mw-rtrc-gadget#59)
            if (key !== 'massPatrol' && defOpt.app[key] !== value)
            {
                if (!reducedOpt.app)
                {
                    reducedOpt.app = {};
                }
                reducedOpt.app[key] = value;
            }
        });

        reducedOpt = JSON.stringify(reducedOpt);

        uri.extend({
            opt: reducedOpt === '{}' ? '' : reducedOpt
        });

        return uri.toString();
    }

    function updateFeedNow()
    {
        $('#rc-options-pause').prop('checked', false);
        if (updateReq)
        {
            // Try to abort the current request
            updateReq.abort();
        }
        clearTimeout(updateFeedTimeout);
        return updateFeed();
    }

    /**
     * @param {jQuery} $element
     */
    function scrollIntoView($element)
    {
        $element[0].scrollIntoView({block: 'start', behavior: 'smooth'});
    }

    /**
     * @param {jQuery} $element
     */
    function scrollIntoViewIfNeeded($element)
    {
        if ($element[0].scrollIntoViewIfNeeded)
        {
            $element[0].scrollIntoViewIfNeeded({block: 'start', behavior: 'smooth'});
        } else
        {
            $element[0].scrollIntoView({block: 'start', behavior: 'smooth'});
        }
    }

    // Read permalink into the program and reflect into settings form.
    function readPermalink()
    {
        var group, oldKey, newKey, newOpt,
                url = new mw.Uri();

        if (url.query.opt)
        {
            try
            {
                newOpt = JSON.parse(url.query.opt);
            } catch (e)
            {
                // TODO: Report error to user
            }
        }
        if (newOpt)
        {
            // Rename values for old aliases
            for (group in newOpt)
            {
                for (oldKey in newOpt[group])
                {
                    newKey = aliasOpt[oldKey];
                    if (newKey && !newOpt[group].hasOwnProperty(newKey))
                    {
                        newOpt[group][newKey] = newOpt[group][oldKey];
                        delete newOpt[group][oldKey];
                    }
                }
            }

            if (newOpt.app)
            {
                // Don't permalink MassPatrol (issue Krinkle/mw-rtrc-gadget#59)
                delete newOpt.app.massPatrol;
            }
        }

        newOpt = $.extend(true, {}, defOpt, newOpt);

        normaliseSettings(newOpt, 'quiet');
        fillSettingsForm(newOpt);

        opt = newOpt;
    }

    function getApiRcParams(rc)
    {
        var params,
                rcprop = [
                    'flags',
                    'timestamp',
                    'user',
                    'title',
                    'parsedcomment',
                    'sizes',
                    'ids'
                ],
                rcshow = [],
                rctype = [];

        if (userHasPatrolRight)
        {
            rcprop.push('patrolled');
        }

        if (rc.hideliu)
        {
            rcshow.push('anon');
        }
        if (rc.hidebots)
        {
            rcshow.push('!bot');
        }
        if (rc.unpatrolled)
        {
            rcshow.push('!patrolled');
        }

        if (rc.typeEdit)
        {
            rctype.push('edit');
        }
        if (rc.typeNew)
        {
            rctype.push('new');
        }
        if (!rctype.length)
        {
            // Custom default instead of MediaWiki's default (in case both checkboxes were unchecked)
            rctype = ['edit', 'new'];
        }

        params = {
            rcdir: rc.dir,
            rclimit: rc.limit,
            rcshow: rcshow.join('|'),
            rcprop: rcprop.join('|'),
            rctype: rctype.join('|')
        };

        if (rc.dir === 'older')
        {
            if (rc.end !== undefined)
            {
                params.rcstart = rc.end;
            }
            if (rc.start !== undefined)
            {
                params.rcend = rc.start;
            }
        } else if (rc.dir === 'newer')
        {
            if (rc.start !== undefined)
            {
                params.rcstart = rc.start;
            }
            if (rc.end !== undefined)
            {
                params.rcend = rc.end;
            }
        }

        if (rc.namespace !== undefined)
        {
            params.rcnamespace = rc.namespace;
        }

        if (rc.user !== undefined)
        {
            params.rcexcludeuser = rc.user;
        }

        if (rc.tag !== undefined)
        {
            params.rctag = rc.tag;
        }

        // params.titles: Title filter (rctitles) is no longer supported by MediaWiki,
        // see https://bugzilla.wikimedia.org/show_bug.cgi?id=12394#c5.

        return params;
    }

    // Called when the feed is regenerated before being inserted in the document
    function applyRtrcAnnotations($feedContent)
    {
        // Re-apply item classes
        $feedContent.filter('.mw-rtrc-item').each(function ()
        {
            var $el = $(this),
                    rcid = Number($el.data('rcid'));

            // Mark skipped and patrolled items as such
            if ($.inArray(rcid, skippedRCIDs) !== -1)
            {
                $el.addClass('mw-rtrc-item-skipped');
            } else if (annotationsCache.patrolled.hasOwnProperty(rcid))
            {
                $el.addClass('mw-rtrc-item-patrolled');
            } else if (rcid === currentDiffRcid)
            {
                $el.addClass('mw-rtrc-item-current');
            }
        });
    }

    function applyOresAnnotations($feedContent)
    {
        var dAnnotations, revids, fetchRevids;

        if (!oresModel)
        {
            return $.Deferred().resolve();
        }

        // Find all revids names inside the feed
        revids = $.map($feedContent.filter('.mw-rtrc-item'), function (node)
        {
            return $(node).attr('data-diff');
        });

        if (!revids.length)
        {
            return $.Deferred().resolve();
        }

        fetchRevids = $.grep(revids, function (revid)
        {
            return !annotationsCache.ores.hasOwnProperty(revid);
        });

        if (!fetchRevids.length)
        {
            // No (new) revisions
            dAnnotations = $.Deferred().resolve(annotationsCache.ores);
        } else
        {
            dAnnotations = $.ajax({
                url: oresApiUrl,
                data: {
                    models: oresModel,
                    revids: fetchRevids.join('|')
                },
                timeout: 10000,
                dataType: $.support.cors ? 'json' : 'jsonp',
                cache: true
            }).then(function (resp)
            {
                var len;
                if (resp)
                {
                    len = Object.keys ? Object.keys(resp).length : fetchRevids.length;
                    annotationsCacheUp(len);
                    $.each(resp, function (revid, item)
                    {
                        if (!item || item.error || !item[oresModel] || item[oresModel].error)
                        {
                            return;
                        }
                        annotationsCache.ores[revid] = item[oresModel].probability['true'];
                    });
                }
                return annotationsCache.ores;
            });
        }

        return dAnnotations.then(function (annotations)
        {
            // Loop through all revision ids
            $.each(revids, function (i, revid)
            {
                var tooltip,
                        score = annotations[revid];
                // Only highlight high probability scores
                if (!score || score <= 0.45)
                {
                    return;
                }
                tooltip = msg('ores-damaging-probability', (100 * score).toFixed(0) + '%');

                // Add alert
                $feedContent
                        .filter('.mw-rtrc-item[data-diff="' + Number(revid) + '"]')
                        .addClass('mw-rtrc-item-alert mw-rtrc-item-alert-rev')
                        .find('.mw-rtrc-meta')
                        .prepend(
                                $('<span>')
                                        .addClass('mw-rtrc-revscore')
                                        .attr('title', tooltip)
                        );
            });
        });
    }

    function applyCvnAnnotations($feedContent)
    {
        var dAnnotations,
                users = [];

        // Collect user names
        $feedContent.filter('.mw-rtrc-item').each(function ()
        {
            var user = $(this).attr('user');
            // Don't query the same user multiple times
            if (user && $.inArray(user, users) === -1 && !annotationsCache.cvn.hasOwnProperty(user))
            {
                users.push(user);
            }
        });

        if (!users.length)
        {
            // No (new) users
            dAnnotations = $.Deferred().resolve(annotationsCache.cvn);
        } else
        {
            dAnnotations = $.ajax({
                        url: cvnApiUrl,
                        data: {users: users.join('|')},
                        timeout: 2000,
                        dataType: $.support.cors ? 'json' : 'jsonp',
                        cache: true
                    })
                    .then(function (resp)
                    {
                        if (resp.users)
                        {
                            annotationsCacheUp(resp.users.length);
                            $.each(resp.users, function (name, user)
                            {
                                annotationsCache.cvn[name] = user;
                            });
                        }
                        return annotationsCache.cvn;
                    });
        }

        return dAnnotations.then(function (annotations)
        {
            // Loop through all cvn user annotations
            $.each(annotations, function (name, user)
            {
                var tooltip;

                // Only if blacklisted, otherwise don't highlight
                if (user.type === 'blacklist')
                {
                    tooltip = '';

                    if (user.comment)
                    {
                        tooltip += msg('cvn-reason') + ': ' + user.comment + '. ';
                    } else
                    {
                        tooltip += msg('cvn-reason') + ': ' + msg('cvn-reason-empty');
                    }

                    if (user.adder)
                    {
                        tooltip += msg('cvn-adder') + ': ' + user.adder;
                    } else
                    {
                        tooltip += msg('cvn-adder') + ': ' + msg('cvn-adder-empty');
                    }

                    // Add alert
                    $feedContent
                            .filter('.mw-rtrc-item')
                            .filter(function ()
                            {
                                return $(this).attr('user') === name;
                            })
                            .addClass('mw-rtrc-item-alert mw-rtrc-item-alert-user')
                            .find('.mw-userlink')
                            .attr('title', tooltip);
                }

            });
        });
    }

    /**
     * @param {Object} update
     * @param {jQuery} update.$feedContent
     * @param {string} update.rawHtml
     */
    function pushFeedContent(update)
    {
        $body.removeClass('placeholder');

        $feed.find('.mw-rtrc-feed-update').html(
                message('lastupdate-rc', new Date().toLocaleString()).escaped() +
                ' | <a href="' + mw.html.escape(getPermalink()) + '">' +
                message('permalink').escaped() +
                '</a>'
        );

        if (update.rawHtml !== prevFeedHtml)
        {
            prevFeedHtml = update.rawHtml;
            applyRtrcAnnotations(update.$feedContent);
            $feed.find('.mw-rtrc-feed-content').empty().append(update.$feedContent);
        }
    }

    function updateFeed()
    {
        if (updateReq)
        {
            updateReq.abort();
        }

        // Indicate updating
        $('#krRTRC_loader').show();

        // Download recent changes
        updateReq = $.ajax({
            url: apiUrl,
            dataType: 'json',
            data: $.extend(getApiRcParams(opt.rc), {
                format: 'json',
                action: 'query',
                list: 'recentchanges'
            })
        });
        // This waterfall flows in one of two ways:
        // - Everything casts to success and results in a UI update (maybe an error message),
        //   loading indicator hidden, and the next update scheduled.
        // - Request is aborted and nothing happens (instead, the final handling will
        //   be done by the new request).
        return updateReq.always(function ()
                {
                    updateReq = null;
                })
                .then(null, function (jqXhr, textStatus)
                {
                    var feedContentHTML = '<h3>Downloading recent changes failed</h3>';
                    if (textStatus === 'abort')
                    {
                        return $.Deferred().reject();
                    }
                    pushFeedContent({
                        $feedContent: $(feedContentHTML),
                        rawHtml: feedContentHTML
                    });
                    // Error is handled. Move on normally.
                    return $.Deferred().resolve();
                }).then(function (data)
                {
                    var recentchanges, $feedContent, client,
                            feedContentHTML = '';

                    if (data.error)
                    {
                        // Account doesn't have patrol flag
                        if (data.error.code === 'rcpermissiondenied')
                        {
                            feedContentHTML += '<h3>Downloading recent changes failed</h3><p>Please untick the "Unpatrolled only"-checkbox or request the Patroller-right.</a>';

                            // Other error
                        } else
                        {
                            client = $.client.profile();
                            feedContentHTML += '<h3>Downloading recent changes failed</h3>' +
                                    '<p>Please check the settings above and try again. If you believe this is a bug, please <strong>' +
                                    '<a href="https://github.com/Krinkle/mw-gadget-rtrc/issues/new?body=' + encodeURIComponent('\n\n\n----' +
                                            '\npackage: mw-gadget-rtrc ' + appVersion +
                                            mw.format('\nbrowser: $1 $2 ($3)', client.name, client.version, client.platform)
                                    ) + '" target="_blank">let me know</a></strong>.';
                        }
                    } else
                    {
                        recentchanges = data.query.recentchanges;

                        if (recentchanges.length)
                        {
                            $.each(recentchanges, function (i, rc)
                            {
                                feedContentHTML += buildRcItem(rc);
                            });
                        } else
                        {
                            // Everything is OK - no results
                            feedContentHTML += '<strong><em>' + message('nomatches').escaped() + '</em></strong>';
                        }

                        // Reset day
                        rcDayHeadPrev = undefined;
                    }

                    $feedContent = $($.parseHTML(feedContentHTML));
                    return $.when(
                            opt.app.cvnDB && applyCvnAnnotations($feedContent),
                            oresModel && opt.app.ores && applyOresAnnotations($feedContent)
                    ).then(null, function ()
                    {
                        // Ignore errors from annotation handlers
                        return $.Deferred().resolve();
                    }).then(function ()
                    {
                        pushFeedContent({
                            $feedContent: $feedContent,
                            rawHtml: feedContentHTML
                        });
                    });
                }).then(function ()
                {
                    $RCOptionsSubmit.prop('disabled', false).css('opacity', '1.0');

                    // Schedule next update
                    updateFeedTimeout = setTimeout(updateFeed, opt.app.refresh * 1000);
                    $('#krRTRC_loader').hide();
                });
    }

    function nextDiff()
    {
        var $lis = $feed.find('.mw-rtrc-item:not(.mw-rtrc-item-current, .mw-rtrc-item-patrolled, .mw-rtrc-item-skipped)');
        $lis.eq(0).find('a.rcitemlink').click();
    }

    function wakeupMassPatrol(settingVal)
    {
        if (settingVal === true)
        {
            if (!currentDiff)
            {
                nextDiff();
            } else
            {
                $('.patrollink a').click();
            }
        }
    }

    // Build the main interface
    function buildInterface()
    {
        var namespaceOptionsHtml, tagOptionsHtml, key,
                fmNs = mw.config.get('wgFormattedNamespaces');

        namespaceOptionsHtml = '<option value>' + mw.message('namespacesall').escaped() + '</option>';
        namespaceOptionsHtml += '<option value="0">' + mw.message('blanknamespace').escaped() + '</option>';

        for (key in fmNs)
        {
            if (key > 0)
            {
                namespaceOptionsHtml += '<option value="' + key + '">' + fmNs[key] + '</option>';
            }
        }

        tagOptionsHtml = '<option value selected>' + message('select-placeholder-none').escaped() + '</option>';
        for (key = 0; key < rcTags.length; key++)
        {
            tagOptionsHtml += '<option value="' + mw.html.escape(rcTags[key]) + '">' + mw.html.escape(rcTags[key]) + '</option>';
        }

        $wrapper = $($.parseHTML(
                '<div class="mw-rtrc-wrapper">' +
                '<div class="mw-rtrc-head">' +
                message('title').escaped() + ' <small>(' + appVersion + ')</small>' +
                '<div class="mw-rtrc-head-links">' +
                (!mw.user.isAnon() ? (
                        '<a target="_blank" href="' + mw.util.getUrl('Special:Log', {
                            type: 'patrol',
                            user: mw.user.getName(),
                            subtype: 'patrol'
                        }) + '">' +
                        message('mypatrollog').escaped() +
                        '</a>'
                ) : '') +
                '<a id="mw-rtrc-toggleHelp">' + message('help').escaped() + '</a>' +
                '</div>' +
                '</div>' +
                '<form id="krRTRC_RCOptions" class="mw-rtrc-settings mw-rtrc-nohelp make-switch"><fieldset>' +
                '<div class="panel-group">' +
                '<div class="panel">' +
                '<label class="head">' + message('filter').escaped() + '</label>' +
                '<div class="sub-panel">' +
                '<label>' +
                '<input type="checkbox" name="hideliu" />' +
                ' ' + message('filter-hideliu').escaped() +
                '</label>' +
                '<br />' +
                '<label>' +
                '<input type="checkbox" name="hidebots" />' +
                ' ' + message('filter-hidebots').escaped() +
                '</label>' +
                '</div>' +
                '<div class="sub-panel">' +
                '<label>' +
                '<input type="checkbox" name="unpatrolled" />' +
                ' ' + message('filter-unpatrolled').escaped() +
                '</label>' +
                '<br />' +
                '<label>' +
                message('userfilter').escaped() +
                '<span section="Userfilter" class="helpicon"></span>: ' +
                '<input type="search" size="16" name="user" />' +
                '</label>' +
                '</div>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' + message('type').escaped() + '</label>' +
                '<div class="sub-panel">' +
                '<label>' +
                '<input type="checkbox" name="typeEdit" checked />' +
                ' ' + message('typeEdit').escaped() +
                '</label>' +
                '<br />' +
                '<label>' +
                '<input type="checkbox" name="typeNew" checked />' +
                ' ' + message('typeNew').escaped() +
                '</label>' +
                '</div>' +
                '</div>' +
                '<div class="panel">' +
                '<label  class="head">' +
                mw.message('namespaces').escaped() +
                ' <br />' +
                '<select class="mw-rtrc-setting-select" name="namespace">' +
                namespaceOptionsHtml +
                '</select>' +
                '</label>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                message('timeframe').escaped() +
                '<span section="Timeframe" class="helpicon"></span>' +
                '</label>' +
                '<div class="sub-panel" style="text-align: right;">' +
                '<label>' +
                message('time-from').escaped() + ': ' +
                '<input type="text" size="16" placeholder="YYYYMMDDHHIISS" name="start" />' +
                '</label>' +
                '<br />' +
                '<label>' +
                message('time-untill').escaped() + ': ' +
                '<input type="text" size="16" placeholder="YYYYMMDDHHIISS" name="end" />' +
                '</label>' +
                '</div>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                message('order').escaped() +
                ' <br />' +
                '<span section="Order" class="helpicon"></span>' +
                '</label>' +
                '<div class="sub-panel">' +
                '<label>' +
                '<input type="radio" name="dir" value="newer" />' +
                ' ' + message('asc').escaped() +
                '</label>' +
                '<br />' +
                '<label>' +
                '<input type="radio" name="dir" value="older" checked />' +
                ' ' + message('desc').escaped() +
                '</label>' +
                '</div>' +
                '</div>' +
                '<div class="panel">' +
                '<label for="mw-rtrc-settings-refresh" class="head">' +
                message('reload-interval').escaped() + '<br />' +
                '<span section="Reload_Interval" class="helpicon"></span>' +
                '</label>' +
                '<input type="number" value="3" min="0" max="99" size="2" id="mw-rtrc-settings-refresh" name="refresh" />' +
                '</div>' +
                '<div class="panel panel-last">' +
                '<input class="button" type="button" id="RCOptions_submit" value="' + message('apply').escaped() + '" />' +
                '</div>' +
                '</div>' +
                '<div class="panel-group panel-group-mini">' +
                '<div class="panel">' +
                '<label for="mw-rtrc-settings-limit" class="head">' + message('limit').escaped() + '</label>' +
                ' <select id="mw-rtrc-settings-limit" name="limit">' +
                '<option value="10">10</option>' +
                '<option value="25" selected>25</option>' +
                '<option value="50">50</option>' +
                '<option value="75">75</option>' +
                '<option value="100">100</option>' +
                '<option value="250">250</option>' +
                '<option value="500">500</option>' +
                '</select>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                message('tag').escaped() +
                ' <select class="mw-rtrc-setting-select" name="tag">' +
                tagOptionsHtml +
                '</select>' +
                '</label>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                'CVN Scores' +
                '<span section="CVN_Scores" class="helpicon"></span>' +
                '<input type="checkbox" class="switch" name="cvnDB" />' +
                '</label>' +
                '</div>' +
                (oresModel ? (
                        '<div class="panel">' +
                        '<label class="head">' +
                        'ORES Scores' +
                        '<span section="ORES_Scores" class="helpicon"></span>' +
                        '<input type="checkbox" class="switch" name="ores" />' +
                        '</label>' +
                        '</div>'
                ) : '') +
                '<div class="panel">' +
                '<label class="head">' +
                message('masspatrol').escaped() +
                '<span section="MassPatrol" class="helpicon"></span>' +
                '<input type="checkbox" class="switch" name="massPatrol" />' +
                '</label>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                message('autodiff').escaped() +
                '<span section="AutoDiff" class="helpicon"></span>' +
                '<input type="checkbox" class="switch" name="autoDiff" />' +
                '</label>' +
                '</div>' +
                '<div class="panel">' +
                '<label class="head">' +
                message('pause').escaped() +
                '<input class="switch" type="checkbox" id="rc-options-pause" />' +
                '</label>' +
                '</div>' +
                '</div>' +
                '</fieldset></form>' +
                '<a name="krRTRC_DiffTop" />' +
                '<div class="mw-rtrc-diff mw-rtrc-diff-closed" id="krRTRC_DiffFrame"></div>' +
                '<div class="mw-rtrc-body placeholder">' +
                '<div class="mw-rtrc-feed">' +
                '<div class="mw-rtrc-feed-update"></div>' +
                '<div class="mw-rtrc-feed-content"></div>' +
                '</div>' +
                '<img src="' + ajaxLoaderUrl + '" id="krRTRC_loader" style="display: none;" />' +
                '<div class="mw-rtrc-legend">' +
                message('legend').escaped() + ': ' +
                '<div class="mw-rtrc-item mw-rtrc-item-patrolled">' + mw.message('markedaspatrolled').escaped() + '</div>, ' +
                '<div class="mw-rtrc-item mw-rtrc-item-current">' + message('currentedit').escaped() + '</div>, ' +
                '<div class="mw-rtrc-item mw-rtrc-item-skipped">' + message('skippededit').escaped() + '</div>' +
                '</div>' +
                '</div>' +
                '<div style="clear: both;"></div>' +
                '<div class="mw-rtrc-foot">' +
                '<div class="plainlinks" style="text-align: right;">' +
                'Real-Time Recent Changes by ' +
                '<a href="//meta.wikimedia.org/wiki/User:Krinkle">Krinkle</a>' +
                ' | <a href="' + docUrl + '">' + message('documentation').escaped() + '</a>' +
                ' | <a href="https://github.com/Krinkle/mw-gadget-rtrc/releases">' + message('changelog').escaped() + '</a>' +
                ' | <a href="https://github.com/Krinkle/mw-gadget-rtrc/issues">Feedback</a>' +
                ' | <a href="https://krinkle.mit-license.org/@2016">License</a>' +
                '</div>' +
                '</div>' +
                '</div>'
        ));

        // Add helper element for switch checkboxes
        $wrapper.find('input.switch').after('<div class="switched"></div>');

        // All links within the diffframe should open in a new window
        $wrapper.find('#krRTRC_DiffFrame').on('click', 'table.diff a', function ()
        {
            var $el = $(this);
            if ($el.is('[href^="http://"], [href^="https://"], [href^="//"]'))
            {
                $el.attr('target', '_blank');
            }
        });

        $('#content').empty().append($wrapper);

        $body = $wrapper.find('.mw-rtrc-body');
        $feed = $body.find('.mw-rtrc-feed');
    }

    function annotationsCacheUp(increment)
    {
        annotationsCacheSize += increment || 1;
        if (annotationsCacheSize > 1000)
        {
            annotationsCache.patrolled = {};
            annotationsCache.ores = {};
            annotationsCache.cvn = {};
        }
    }

    // Bind event hanlders in the user interface
    function bindInterface()
    {
        var api = new mw.Api();
        $RCOptionsSubmit = $('#RCOptions_submit');

        // Apply button
        $RCOptionsSubmit.click(function ()
        {
            $RCOptionsSubmit.prop('disabled', true).css('opacity', '0.5');

            readSettingsForm();

            updateFeedNow().then(function ()
            {
                wakeupMassPatrol(opt.app.massPatrol);
            });
            return false;
        });

        // Close Diff
        $wrapper.on('click', '#diffClose', function ()
        {
            $('#krRTRC_DiffFrame').addClass('mw-rtrc-diff-closed');
            currentDiff = currentDiffRcid = false;
        });

        // Load diffview on (diff)-link click
        $feed.on('click', 'a.diff', function (e)
        {
            var $item = $(this).closest('.mw-rtrc-item').addClass('mw-rtrc-item-current'),
                    title = $item.find('.mw-title').text(),
                    href = $(this).attr('href'),
                    $frame = $('#krRTRC_DiffFrame');

            $feed.find('.mw-rtrc-item-current').not($item).removeClass('mw-rtrc-item-current');

            currentDiff = Number($item.data('diff'));
            currentDiffRcid = Number($item.data('rcid'));

            $frame
                    .addClass('mw-rtrc-diff-loading')
                    // Reset class potentially added by a.newPage or diffClose
                    .removeClass('mw-rtrc-diff-newpage mw-rtrc-diff-closed');

            $.ajax({
                url: mw.util.wikiScript(),
                dataType: 'html',
                data: {
                    action: 'render',
                    diff: currentDiff,
                    diffonly: '1',
                    uselang: conf.wgUserLanguage
                }
            }).fail(function (jqXhr)
            {
                $frame
                        .append(jqXhr.responseText || 'Loading diff failed.')
                        .removeClass('mw-rtrc-diff-loading');
            }).done(function (data)
            {
                var skipButtonHtml, $diff;
                if ($.inArray(currentDiffRcid, skippedRCIDs) !== -1)
                {
                    skipButtonHtml = '<span class="tab"><a id="diffUnskip">' + message('unskip').escaped() + '</a></span>';
                } else
                {
                    skipButtonHtml = '<span class="tab"><a id="diffSkip">' + message('skip').escaped() + '</a></span>';
                }

                $frame
                        .html(data)
                        .prepend(
                                '<h3>' + mw.html.escape(title) + '</h3>' +
                                '<div class="mw-rtrc-diff-tools">' +
                                '<span class="tab"><a id="diffClose">' + message('close').escaped() + '</a></span>' +
                                '<span class="tab"><a href="' + href + '" target="_blank" id="diffNewWindow">Open in Wiki</a></span>' +
                                (userHasPatrolRight ?
                                                '<span class="tab"><a onclick="(function(){ if($(\'.patrollink a\').length){ $(\'.patrollink a\').click(); } else { $(\'#diffSkip\').click(); } })();">[mark]</a></span>' :
                                                ''
                                ) +
                                '<span class="tab"><a id="diffNext">' + mw.message('next').escaped() + ' &raquo;</a></span>' +
                                skipButtonHtml +
                                '</div>'
                        )
                        .removeClass('mw-rtrc-diff-loading');

                if (opt.app.massPatrol)
                {
                    $frame.find('.patrollink a').click();
                } else
                {
                    $diff = $frame.find('table.diff');
                    if ($diff.length)
                    {
                        mw.hook('wikipage.diff').fire($diff.eq(0));
                    }
                    // Only scroll up if the user scrolled down
                    // Leave scroll offset unchanged otherwise
                    scrollIntoViewIfNeeded($frame);
                }
            });

            e.preventDefault();
        });

        $feed.on('click', 'a.newPage', function (e)
        {
            var $item = $(this).closest('.mw-rtrc-item').addClass('mw-rtrc-item-current'),
                    title = $item.find('.mw-title').text(),
                    href = $item.find('.mw-title').attr('href'),
                    $frame = $('#krRTRC_DiffFrame');

            $feed.find('.mw-rtrc-item-current').not($item).removeClass('mw-rtrc-item-current');

            currentDiffRcid = Number($item.data('rcid'));

            $frame
                    .addClass('mw-rtrc-diff-loading mw-rtrc-diff-newpage')
                    .removeClass('mw-rtrc-diff-closed');

            $.ajax({
                url: href,
                dataType: 'html',
                data: {
                    action: 'render',
                    uselang: conf.wgUserLanguage
                }
            }).fail(function (jqXhr)
            {
                $frame
                        .append(jqXhr.responseText || 'Loading diff failed.')
                        .removeClass('mw-rtrc-diff-loading');
            }).done(function (data)
            {
                var skipButtonHtml;
                if ($.inArray(currentDiffRcid, skippedRCIDs) !== -1)
                {
                    skipButtonHtml = '<span class="tab"><a id="diffUnskip">' + message('unskip').escaped() + '</a></span>';
                } else
                {
                    skipButtonHtml = '<span class="tab"><a id="diffSkip">' + message('skip').escaped() + '</a></span>';
                }

                $frame
                        .html(data)
                        .prepend(
                                '<h3>' + title + '</h3>' +
                                '<div class="mw-rtrc-diff-tools">' +
                                '<span class="tab"><a id="diffClose">X</a></span>' +
                                '<span class="tab"><a href="' + href + '" target="_blank" id="diffNewWindow">Open in Wiki</a></span>' +
                                '<span class="tab"><a onclick="$(\'.patrollink a\').click()">[mark]</a></span>' +
                                '<span class="tab"><a id="diffNext">' + mw.message('next').escaped() + ' &raquo;</a></span>' +
                                skipButtonHtml +
                                '</div>'
                        )
                        .removeClass('mw-rtrc-diff-loading');

                if (opt.app.massPatrol)
                {
                    $frame.find('.patrollink a').click();
                }
            });

            e.preventDefault();
        });

        // Mark as patrolled
        $wrapper.on('click', '.patrollink', function ()
        {
            var $el = $(this);
            $el.find('a').text(mw.msg('markaspatrolleddiff') + '...');
            api.postWithToken('patrol', {
                action: 'patrol',
                rcid: currentDiffRcid
            }).done(function (data)
            {
                if (!data || data.error)
                {
                    $el.empty().append(
                            $('<span style="color: red;"></span>').text(mw.msg('markedaspatrollederror'))
                    );
                    mw.log('Patrol error:', data);
                    return;
                }
                $el.empty().append(
                        $('<span style="color: green;"></span>').text(mw.msg('markedaspatrolled'))
                );
                $feed.find('.mw-rtrc-item[data-rcid="' + currentDiffRcid + '"]').addClass('mw-rtrc-item-patrolled');

                // Feed refreshes may overlap with patrol actions, which can cause patrolled edits
                // to show up in an "Unpatrolled only" feed. This is make nextDiff() skip those.
                annotationsCacheUp();
                annotationsCache.patrolled[currentDiffRcid] = true;

                if (opt.app.autoDiff)
                {
                    nextDiff();
                }
            }).fail(function ()
            {
                $el.empty().append(
                        $('<span style="color: red;"></span>').text(mw.msg('markedaspatrollederror'))
                );
            });

            return false;
        });

        // Trigger NextDiff
        $wrapper.on('click', '#diffNext', function ()
        {
            nextDiff();
        });

        // SkipDiff
        $wrapper.on('click', '#diffSkip', function ()
        {
            $feed.find('.mw-rtrc-item[data-rcid="' + currentDiffRcid + '"]').addClass('mw-rtrc-item-skipped');
            // Add to array, to re-add class after refresh
            skippedRCIDs.push(currentDiffRcid);
            nextDiff();
        });

        // UnskipDiff
        $wrapper.on('click', '#diffUnskip', function ()
        {
            $feed.find('.mw-rtrc-item[data-rcid="' + currentDiffRcid + '"]').removeClass('mw-rtrc-item-skipped');
            // Remove from array, to no longer re-add class after refresh
            skippedRCIDs.splice(skippedRCIDs.indexOf(currentDiffRcid), 1);
        });

        // Show helpicons
        $('#mw-rtrc-toggleHelp').click(function (e)
        {
            e.preventDefault();
            $('#krRTRC_RCOptions').toggleClass('mw-rtrc-nohelp mw-rtrc-help');
        });

        // Link helpicons
        $('.mw-rtrc-settings .helpicon')
                .attr('title', msg('helpicon-tooltip'))
                .click(function (e)
                {
                    e.preventDefault();
                    window.open(docUrl + '#' + $(this).attr('section'), '_blank');
                });

        // Mark as patrolled when rollbacking
        // Note: As of MediaWiki r(unknown) rollbacking does already automatically patrol all reverted revisions.
        // But by doing it anyway it saves a click for the AutoDiff-users
        $wrapper.on('click', '.mw-rollback-link a', function ()
        {
            $('.patrollink a').click();
        });

        // Button: Pause
        $('#rc-options-pause').click(function ()
        {
            if (!this.checked)
            {
                // Unpause
                updateFeedNow();
                return;
            }
            clearTimeout(updateFeedTimeout);
        });
    }

    function showUnsupported()
    {
        $('#content').empty().append(
                $('<p>').addClass('errorbox').text(
                        'This program requires functionality not supported in this browser.'
                )
        );
    }

    /**
     * @param {string} [errMsg]
     */
    function showFail(errMsg)
    {
        $('#content').empty().append(
                $('<p>').addClass('errorbox').text(errMsg || 'An unexpected error occurred.')
        );
    }

    /**
     * Init functions
     * -------------------------------------------------
     */

    /**
     * Fetches all external data we need.
     *
     * This runs in parallel with loading of modules and i18n.
     *
     * @return {jQuery.Promise}
     */
    function initData()
    {
        var promises = [];

        // Get userrights
        promises.push(
                mw.loader.using('mediawiki.user').then(function ()
                {
                    return mw.user.getRights().then(function (rights)
                    {
                        if ($.inArray('patrol', rights) !== -1)
                        {
                            userHasPatrolRight = true;
                        }
                    });
                })
        );

        // Get MediaWiki interface messages
        promises.push(
                mw.loader.using('mediawiki.api.messages').then(function ()
                {
                    return new mw.Api().loadMessages([
                        'blanknamespace',
                        'contributions',
                        'contribslink',
                        'diff',
                        'markaspatrolleddiff',
                        'markedaspatrolled',
                        'markedaspatrollederror',
                        'namespaces',
                        'namespacesall',
                        'next',
                        'talkpagelinktext'
                    ]);
                })
        );

        promises.push($.ajax({
            url: apiUrl,
            dataType: 'json',
            data: {
                format: 'json',
                action: 'query',
                list: 'tags',
                tgprop: 'displayname'
            }
        }).then(function (data)
        {
            var tags = data.query && data.query.tags;
            if (tags)
            {
                rcTags = $.map(tags, function (tag)
                {
                    return tag.name;
                });
            }
        }));

        promises.push($.ajax({
            url: apiUrl,
            dataType: 'json',
            data: {
                format: 'json',
                action: 'query',
                meta: 'siteinfo'
            }
        }).then(function (data)
        {
            wikiTimeOffset = (data.query && data.query.general.timeoffset) || 0;
        }));

        return $.when.apply(null, promises);
    }

    /**
     * @return {jQuery.Promise}
     */
    function init()
    {
        var dModules, dI18N, featureTest, $navToggle, dOres;

        // Transform title and navigation tabs
        document.title = 'RTRC: ' + conf.wgDBname;
        $(function ()
        {
            $('#p-namespaces ul')
                    .find('li.selected')
                    .removeClass('new')
                    .find('a')
                    .text('RTRC');
        });

        featureTest = !!(Date.parse);

        if (!featureTest)
        {
            $(showUnsupported);
            return;
        }

        // These selectors from vector-hd conflict with mw-rtrc-available
        $('.vector-animateLayout').removeClass('vector-animateLayout');

        $('html').addClass('mw-rtrc-available');

        if (navSupported)
        {
            $('html').addClass('mw-rtrc-sidebar-toggleable');
            $(function ()
            {
                $navToggle = $('<div>').addClass('mw-rtrc-navtoggle');
                $('body').append($('<div>').addClass('mw-rtrc-sidebar-cover'));
                $('#mw-panel')
                        .append($navToggle)
                        .hover(function ()
                        {
                            $('html').addClass('mw-rtrc-sidebar-on');
                        }, function ()
                        {
                            $('html').removeClass('mw-rtrc-sidebar-on');
                        });
            });
        }

        dModules = mw.loader.using([
            'json',
            'jquery.client',
            'mediawiki.diff.styles',
            // mw-plusminus styles etc.
            'mediawiki.special.changeslist',
            'mediawiki.jqueryMsg',
            'mediawiki.Uri',
            'mediawiki.user',
            'mediawiki.util',
            'mediawiki.api',
            'mediawiki.api.messages'
        ]);

        if (!mw.libs.getIntuition)
        {
            mw.libs.getIntuition = $.ajax({
                url: intuitionLoadUrl,
                dataType: 'script',
                cache: true,
                timeout: 7000 /*ms*/
            });
        }

        dOres = $.ajax({
            url: oresApiUrl,
            dataType: $.support.cors ? 'json' : 'jsonp',
            cache: true,
            timeout: 2000
        }).then(function (data)
        {
            if (data && data.models)
            {
                if (data.models.damaging)
                {
                    oresModel = 'damaging';
                } else if (data.models.reverted)
                {
                    oresModel = 'reverted';
                }
            }
        }, function ()
        {
            // If ORES doesn't have models for this wiki, do continue loading without
            return $.Deferred().resolve();
        });

        dI18N = mw.libs.getIntuition
                .then(function ()
                {
                    return mw.libs.intuition.load('rtrc');
                })
                .then(function ()
                {
                    message = $.proxy(mw.libs.intuition.message, null, 'rtrc');
                    msg = $.proxy(mw.libs.intuition.msg, null, 'rtrc');
                }, function ()
                {
                    // Ignore failure. RTRC should load even if Labs is down.
                    // Fallback to displaying message keys.
                    mw.messages.set('intuition-i18n-gone', '$1');
                    message = function (key)
                    {
                        return mw.message('intuition-i18n-gone', key);
                    };
                    msg = function (key)
                    {
                        return key;
                    };
                    return $.Deferred().resolve();
                });

        $.when(initData(), dModules, dI18N, dOres, $.ready).fail(showFail).done(function ()
        {
            if ($navToggle)
            {
                $navToggle.attr('title', msg('navtoggle-tooltip'));
            }

            // Map over months
            monthNames = msg('months').split(',');

            buildInterface();
            readPermalink();
            updateFeedNow();

            scrollIntoView($wrapper);
            rAF(function ()
            {
                $('html').addClass('mw-rtrc-ready');
            });

            bindInterface();
        });
    }

    /**
     * Execution
     * -------------------------------------------------
     */

        // On every page
    $.when(mw.loader.using('mediawiki.util'), $.ready).then(function ()
    {
        if (!$('#t-rtrc').length)
        {
            mw.util.addPortletLink(
                    'p-tb',
                    mw.util.getUrl('Special:BlankPage/RTRC'),
                    'RTRC',
                    't-rtrc',
                    'Monitor and patrol recent changes in real-time',
                    null,
                    '#t-specialpages'
            );
        }
        if (conf.wgCanonicalSpecialPageName === 'Recentchanges' && !$('#ca-nstab-rtrc').length)
        {
            mw.util.addPortletLink(
                    'p-namespaces',
                    mw.util.getUrl('Special:BlankPage/RTRC'),
                    'RTRC',
                    'ca-nstab-rtrc',
                    'Monitor and patrol recent changes in real-time'
            );
        }
    });

    // Initialise if in the right context
    if (
            (conf.wgTitle === 'Krinkle/RTRC' && conf.wgAction === 'view') ||
            (conf.wgCanonicalSpecialPageName === 'Blankpage' && conf.wgTitle.split('/', 2)[1] === 'RTRC')
    )
    {
        init();
    }

}(jQuery, mediaWiki));