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User:Krinkle/Tools/WhatLeavesHere.js

< User:Krinkle‎ | Tools

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/**
 * WhatLeavesHere v0.5.1
 *
 * Copyright 2017 Timo Tijhof, https://gerrit.wikimedia.org/g/mediawiki/gadgets/WhatLeavesHere
 *
 * SPDX-License-Identifier: MIT
 */
/* eslint-env browser */
/* eslint no-var:off */
/* global mw, $ */
(function () {
  'use strict';

  var namespace;
  var target;
  var msg;
  var message;
  var gmessage;
  var conf = mw.config.get([
    'wgCanonicalNamespace',
    'wgCanonicalSpecialPageName',
    'wgFormattedNamespaces',
    'wgPageName',
    'wgSiteName',
    'wgTitle',
    'wgUserLanguage'
  ]);

  function wrapListItem (nodes) {
    var li = document.createElement('li');
    $(li).append(nodes);
    return li;
  }

  /**
   * Initialisation
   */
  function init () {
    var optionHtml;

    // Only initialise if we're on [[Special:WhatLeavesHere]]
    // Can't use wgCanonicalSpecialPageName, since this is a non-existing special page
    if (conf.wgCanonicalNamespace === 'Special' && conf.wgTitle === 'WhatLeavesHere') {
      // Initialise page
      document.title = msg('title') + ' - ' + conf.wgSiteName;

      optionHtml = '';
      $.each(conf.wgFormattedNamespaces, function (nsId, nsName) {
        if (Number(nsId) >= 0) {
          optionHtml += mw.html.element(
            'option', {
              value: nsId
            },
            nsId === '0' ? '(Main)' : nsName
          );
        }
      });

      $('#bodyContent').html(
        '<div id="contentSub"></div><form action="/wiki/Special:WhatLeavesHere" method="get">' +
        '<fieldset>' +
          '<legend id="mw-whatleaveshere-legend">' + message('title').escaped() + '</legend>' +
          '<label for="mw-whatleaveshere-target">' + message('label-page').escaped() + ':</label>&nbsp;<input name="target" size="40" value="" id="mw-whatleaveshere-target">' +
          ' <label for="namespace">' + message('label-namespace').escaped() + ':</label>&nbsp;' +
          '<select id="mw-whatleaveshere-namespace" name="namespace" class="namespaceselector mw-namespace-selector">' +
            '<option value="" selected="selected">' + message('namespacesall').escaped() + '</option>' +
            optionHtml +
          '</select>' +
          ' <input type="submit" value="' + message('button-submit').escaped() + '">' +
        '</fieldset>' +
  '</form>'
      ).find('#mw-whatleaveshere-legend').append(
        ' / ',
        $('<a>')
          .attr('href', '#')
          .text(msg('whatlinkshere'))
          .on('click', function (e) {
            e.preventDefault();
            location.href = mw.util.getUrl('Special:WhatLinksHere') +
              '?target=' + mw.util.wikiUrlencode($('#mw-whatleaveshere-target').val());
          })
      );

      mw.util.addCSS('.mw-whatleaveshere-toc { top: 20em; right: 1em; position: fixed; }');

      if (mw.util.getParamValue('target') === null) {
        $('#firstHeading').text(msg('title'));
      } else {
        // is htmlescaped already apparantly
        target = $.trim(mw.util.getParamValue('target').replace(/_/g, ' ').replace(/\+/g, ' '));
        namespace = mw.util.getParamValue('namespace') || null;

        $('#firstHeading').text(msg('title-leaveshere', target));
        $('#contentSub').prepend('&larr; <a href="' + mw.util.wikiScript() + '?title=' +
          mw.html.escape(encodeURIComponent(target)) + '&amp;redirect=no" title="' +
          mw.html.escape(target) + '">' + mw.html.escape(target) + '</a>'
        );
        $('#mw-whatleaveshere-target').val(target);

        if (namespace) {
          $('#mw-whatleaveshere-namespace').val(namespace);
        }

        $.ajax({
          type: 'GET',
          url: mw.util.wikiScript('api'),
          data: {
            format: 'json',
            action: 'query',
            titles: target,
            prop: 'templates|images|links|iwlinks|extlinks|categories',
            tlnamespace: namespace,
            plnamespace: namespace,
            iwprop: 'url',
            tllimit: 500,
            imlimit: 500,
            pllimit: 500,
            iwlimit: 500,
            ellimit: 500,
            cllimit: 500
          },
          dataType: 'json'
        }).then(function (data) {
          var key; var page; var isNew; var redLinkAttr;
          var links = [];
          var iwlinks = [];
          var extlinks = [];
          var categories = [];
          var hasResults = false;

          if (!data || data.error || !data.query.pages) {
            return;
          }

          // eslint-disable-next-line no-unreachable-loop
          for (key in data.query.pages) {
            page = data.query.pages[key];
            break;
          }

          if (!page) {
            return;
          }

          // Back-compat
          page.pagelinks = page.links;

          isNew = page.missing !== undefined;
          if (isNew) {
            $('#contentSub > a').eq(0).addClass('new');
            redLinkAttr = ' class="new"';
          } else {
            redLinkAttr = '';
          }

          function handleLinks (type, i, link) {
            var typeText;
            if (type === 'template') {
              typeText = gmessage('parentheses', message('istemplate').text()).text();
            } else if (type === 'file') {
              typeText = gmessage('parentheses', message('isfile').text()).text();
            } else {
              typeText = '';
            }

            links.push([
              $('<a>')
                .attr('href', mw.util.getUrl(link.title))
                .text(link.title)
                .get(0),
              ' ' + typeText + ' ',
              $('<a>')
                .attr('href', mw.util.getUrl('Special:WhatLeavesHere', {
                  target: link.title
                }))
                .text('← leaves')
                .get(0)
            ]);
          }

          if (page.templates) {
            hasResults = true;
            $.each(page.templates, $.proxy(handleLinks, null, 'template'));
          }

          if (page.images) {
            hasResults = true;
            $.each(page.images, $.proxy(handleLinks, null, 'file'));
          }

          if (page.pagelinks) {
            hasResults = true;
            $.each(page.pagelinks, $.proxy(handleLinks, null, 'pagelink'));
          }

          if (page.iwlinks) {
            hasResults = true;
            $.each(page.iwlinks, function (i, link) {
              iwlinks.push([
                $('<a>')
                  .attr('href', link.url)
                  .text(link.prefix + ':' + link['*'])
                  .get(0)
              ]);
            });
          }

          if (page.extlinks) {
            hasResults = true;
            $.each(page.extlinks, function (i, link) {
              extlinks.push([
                $('<a>')
                  .addClass('external')
                  .attr('href', link['*'])
                  .text(link['*'])
                  .get(0),
                ' ',
                $('<a>')
                  .attr('href', mw.util.getUrl('Special:LinkSearch', {
                    target: link['*']
                  }))
                  .text('← ' + msg('linksearch'))
                  .get(0)
              ]);
            });
          }

          if (page.categories) {
            hasResults = true;
            $.each(page.categories, function (i, link) {
              categories.push([
                $('<a>')
                  .attr('href', mw.util.getUrl(link.title))
                  .text(link.title)
                  .get(0),
                ' ',
                $('<a>')
                  .attr('href', mw.util.getUrl('Special:WhatLeavesHere', {
                    target: link.title
                  }))
                  .text('← leaves')
                  .get(0)
              ]);
            });
          }

          if (!hasResults) {
            $('#bodyContent').append('<p>' +
              message('noleaveshere').escaped()
                .replace('$1',
                  '<b><a href="' + mw.html.escape(mw.util.getUrl(target)) + '"' + redLinkAttr + '>' + mw.html.escape(target) + '</a></b>'
                ) +
              '</p>'
            );
          } else {
            $('#bodyContent').append('<p>' +
              message('sub-leaveshere').escaped()
                .replace('$1',
                  '<b><a href="' + mw.html.escape(mw.util.getUrl(target)) + '"' + redLinkAttr + '>' + mw.html.escape(target) + '</a></b>'
                ) +
              '</p><hr>' +
              '<div class="toccolours toc mw-whatleaveshere-toc">' +
              '<h2>Contents</h2>' +
                '<ul>' +
                '<li><a href="#top">' + message('section-links').escaped() + '</a></li>' +
                (iwlinks.length ? '<li>' + mw.html.element('a', { href: '#mw-whatleaveshere-iwlinks' }, msg('section-iwlinks')) + '</li>' : '') +
                (extlinks.length ? '<li>' + mw.html.element('a', { href: '#mw-whatleaveshere-extlinks' }, msg('section-extlinks')) + '</li>' : '') +
                (categories.length ? '<li>' + mw.html.element('a', { href: '#mw-whatleaveshere-categories' }, msg('section-categories')) + '</li>' : '') +
                '</ul>' +
              '</div>' +
              '<ul id="mw-whatleaveshere-links-list"></ul>' +
              '<div id="mw-whatleaveshere-iwlinks"></div>' +
              '<div id="mw-whatleaveshere-extlinks"></div>' +
              '<div id="mw-whatleaveshere-categories"></div>'
            );
            $('#mw-whatleaveshere-links-list').append($.map(links, wrapListItem));
            if (iwlinks.length) {
              $('#mw-whatleaveshere-iwlinks').append(
                mw.html.element('h3', {}, msg('section-iwlinks')),
                $('<ul>').append($.map(iwlinks, wrapListItem))
              );
            }
            if (extlinks.length) {
              $('#mw-whatleaveshere-extlinks').append(
                mw.html.element('h3', {}, msg('section-extlinks')),
                $('<ul>').append($.map(extlinks, wrapListItem))
              );
            }
            if (categories.length) {
              $('#mw-whatleaveshere-categories').append(
                mw.html.element('h3', {}, msg('section-categories')),
                $('<ul>').append($.map(categories, wrapListItem))
              );
            }
          }
        });
      }
    } else if (conf.wgCanonicalNamespace !== 'Special') {
      mw.util.addPortletLink(
        'p-tb',
        mw.util.getUrl('Special:WhatLeavesHere') + '?target=' + conf.wgPageName,
        msg('link-whatleaveshere'),
        't-whatleaveshere',
        msg('tooltip-whatleaveshere'),
        false,
        '#t-whatlinkshere'
      );
    } else if (conf.wgCanonicalSpecialPageName === 'Whatlinkshere') {
      $('#bodyContent form fieldset legend')
        .append(' / <a href="' + mw.util.getUrl('Special:WhatLeavesHere') + '?target=' +
          mw.util.wikiUrlencode($('#mw-whatlinkshere-target').val()) + '">' + message('whatlinkshere-whatleaveshere').escaped() + '</a>'
        );
    } else if (conf.wgCanonicalSpecialPageName === 'Specialpages') {
      $('#mw-specialpagesgroup-pagetools').next().find('td ul').eq(1)
        .prepend('<li><a href="' + mw.util.getUrl('Special:WhatLeavesHere') + '">' + message('title').escaped() + '</a></li>');
    }
  }

  if (!mw.libs.getIntuition) {
    mw.libs.getIntuition = $.ajax({ url: 'https://meta.wikimedia.org/w/index.php?title=User:Krinkle/Scripts/Intuition.js&action=raw&ctype=text/javascript', dataType: 'script', cache: true, timeout: 7000 });
  }

  $.when(
    mw.libs.getIntuition
      .then(function () {
        return mw.libs.intuition.load(['whatleaveshere', 'general']);
      })
      .then(function () {
        msg = mw.libs.intuition.msg.bind(null, 'whatleaveshere');
        message = mw.libs.intuition.message.bind(null, 'whatleaveshere');
        gmessage = mw.libs.intuition.message.bind(null, 'general');
      }),
    mw.loader.using([
      'mediawiki.util'
    ]),
    $.ready
  ).then(init);
}());
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