MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */

/****************************************/
/* sliders using jquery by User:Tierrie */
/****************************************/
mw.loader.using(['jquery.cookie']);

/****************************************/
/* sliders using jquery by User:Tierrie */
/****************************************/
mw.loader.using(['jquery.ui'], function () {
  $("[class^=portal_vtab]").tabs().addClass("ui-tabs-vertical ui-helper-clearfix");
  $("[class^=portal_vtab] li").removeClass("ui-corner-top").addClass("ui-corner-left");

  var $tabs = $("#portal_slider").tabs({ fx: { opacity: 'toggle', duration: 100 } });
  $("[class*=portal_sliderlink]").on('click', function () {
    $tabs.tabs('select', this.className.match(/portal_sliderlink-(\d+)/)[1]);
    return false;
  });
  $('#portal_next').on('click', function () {
    $tabs.tabs('select', ($tabs.tabs('option', 'selected') == ($tabs.tabs('length')) - 1) ? 0 : $tabs.tabs('option', 'selected') + 1);
    return false;
  });
  $('#portal_prev').on('click', function () {
    $tabs.tabs('select', ($tabs.tabs('option', 'selected') == 0) ? ($tabs.tabs('length') - 1) : $tabs.tabs('option', 'selected') - 1);
    return false;
  });
});

/* lockdown for reference popup configuration */
((window.dev = window.dev || {}).ReferencePopups = dev.ReferencePopups || {}).lockdown = true;

/* Disable license check for multi upload */
mw.config.set('UMFBypassLicenseCheck', true);

/* Hide Admin toolbox for non-admins */
mw.loader.using('mediawiki.util').then(function () {
  var g = mw.config.get('wgUserGroups') || [];
  var isAdmin = g.indexOf('sysop') !== -1 || g.indexOf('interface-admin') !== -1;
  if (!isAdmin) document.querySelectorAll('.only-sysop').forEach(function (el) { el.style.display = 'none'; });
});

/* ============================
   RANDOM PAGE TEASER (robust)
   ============================ */
mw.loader.using(['mediawiki.api', 'mediawiki.util']).then(function () {
  var box = document.getElementById('random-teaser');
  if (!box) return; // run only if the container exists

  var api = new mw.Api();
  var THUMB_WIDTH = 280;

  function esc(s) { return mw.html.escape(String(s || '')); }

  function makeExcerptFromHTML(html, maxChars) {
    var tmp = document.createElement('div');
    tmp.innerHTML = html;
    var p = tmp.querySelector('p');
    var txt = (p ? p.innerText : tmp.innerText || '').replace(/\s+/g, ' ').trim();
    if (txt.length > maxChars) txt = txt.slice(0, maxChars).replace(/\s+\S*$/, '') + '…';
    return txt || 'No description available.';
  }

  function pickImageTitle(list) {
    if (!Array.isArray(list) || !list.length) return null;
    var preferred = list.find(function (t) { return /\.(jpe?g|png|gif|webp)$/i.test(t); });
    return preferred || list[0] || null;
  }

  function getThumbUrl(fileTitle) {
    if (!fileTitle) return Promise.resolve(null);
    return api.get({
      action: 'query',
      formatversion: 2,
      titles: fileTitle,
      prop: 'imageinfo',
      iiprop: 'url',
      iiurlwidth: THUMB_WIDTH
    }).then(function (res) {
      var p = res.query && res.query.pages && res.query.pages[0];
      var ii = p && p.imageinfo && p.imageinfo[0];
      return (ii && (ii.thumburl || ii.url)) || null;
    }).catch(function () { return null; });
  }

  function render(title, extract, imgUrl) {
    var url = mw.util.getUrl(title);
    box.innerHTML =
      '<div class="thumb">' +
        (imgUrl ? '<img src="' + esc(imgUrl) + '" alt="">' : '<span>🡲</span>') +
      '</div>' +
      '<div class="content">' +
        '<h3><a href="' + url + '">' + esc(title) + '</a></h3>' +
        '<p>' + esc(extract) + '</p>' +
        '<div class="actions">' +
          '<a class="btn" href="' + url + '">Open</a>' +
          '<button type="button" class="btn" id="rand-refresh">Another</button>' +
          '<a class="btn" href="' + mw.util.getUrl('Special:Random') + '">Special:Random</a>' +
        '</div>' +
      '</div>';
    box.classList.remove('loading');

    var refreshBtn = document.getElementById('rand-refresh');
    if (refreshBtn) refreshBtn.addEventListener('click', function () {
      box.classList.add('loading');
      loadRandom();
    });
  }

  function loadRandom() {
    // 1) pick random title
    api.get({
      action: 'query',
      formatversion: 2,
      list: 'random',
      rnnamespace: 0,
      rnlimit: 1
    }).then(function (r) {