Reddit - Top Comments Preview

Preview to the top comments on Reddit (optional: autoload comments, autoload images, autohide sidebar)

Fra og med 25.04.2015. Se den nyeste version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name           Reddit - Top Comments Preview
// @namespace      https://greatest.deepsurf.us/users/5174-jesuis-parapluie
// @author         Erik Wannebo, gavin19, jesuis-parapluie
// @description    Preview to the top comments on Reddit (optional: autoload comments, autoload images, autohide sidebar)
// @include        /^https?://(.+\.)?reddit\.com/.*$/
// @exclude        /^https?://(.+\.)?reddit\.com/.+/comments/.*$/
// @grant          meta-detablock
// @grant          GM_getValue
// @grant          GM_setValue
// @version        1.82
// ==/UserScript==
(function () {
  'use strict';
  var topCP = {
    opts: {
      /* Number of comments to display. Default is 3 */
      topComments: 3,
      /* Changes the comment sorting. Available sortings: top, best, new, hot, controversial, old */
      commentSorting: 'top',
      /* Disables the option for hiding the sidebar. */
      disableSidebarButton: false,
      /* Disables the autoloading option for images and comments. */
      disableAutoloadButton: false,
      /* set keyboard shortcut 't' to show/hide active top comments (needs RES) */
      disableShortCut: false
    },
    addTopLinks: function () {
      var i,
      len,
      link,
      li,
      articleID,
      tmp,
      parent,
      a = document.querySelectorAll('.linklisting .comments:not(.empty)');
      if (a.length) {
        for (i = 0, len = a.length; i < len; i += 1) {
          if (!a[i].parentNode.parentNode.querySelector('.toplink') && /[0-9]/.test(a[i])) {
            articleID = a[i].getAttribute('href');
            articleID = articleID.substring(articleID.indexOf('/comments/') + 10, articleID.indexOf('/comments/') + 16);
            link = document.createElement('a');
            li = document.createElement('li');
            //li.className = 'rcp';
            li.appendChild(link);
            link.className = 'toplink';
            tmp = 'java';
            link.href = tmp + 'script:;';
            link.setAttribute('id', 'toplink' + articleID);
            link.setAttribute('style', 'color:orangered;text-decoration:none;');
            link.textContent = ' ' + topCP.opts.commentSorting;
            parent = a[i].parentNode.parentNode;
            parent.insertBefore(li, parent.querySelector('.first + li'));
            topCP.addListener(link, articleID);
            if (GM_getValue('autoLoadComments', false))
            {
              topCP.retrieveTopComments(link, articleID);
            }
          }
        }
      }
    },
    addListener: function (link, id) {
      link.addEventListener('click', function () {
        topCP.retrieveTopComments(this, id);
      });
    },
    retrieveTopComments: function (ele, articleID) {
      var pre,
      url,
      xhr,
      thisPre;
      topCP.kill_preview = function () {
        this.parentNode.removeChild(this);
      };
      ele = ele.parentNode.parentNode.parentNode;
      if (!document.querySelector('#preview' + articleID))
      {
        pre = document.createElement('div');
        pre.setAttribute('id', 'preview' + articleID);
        pre.classList.add('loading');
        ele.insertBefore(pre, ele.querySelector('.expando'));
      }
      if (document.querySelector('#preview' + articleID).classList.contains('loading')) {
        url = window.location.href.split('/') [0] + '//www.reddit.com/comments/' + articleID + '/.json?limit=' + (topCP.opts.topComments + 5) + '&sort=' + topCP.opts.commentSorting;
        xhr = new XMLHttpRequest();
        xhr.open('GET', url, true);
        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        xhr.onreadystatechange = function () {
          if (xhr.readyState === 4 && xhr.status === 200) {
            topCP.onloadJSON(xhr);
          } else if (xhr.status === 503) {
            // Service not available, retry every second
            setTimeout(topCP.retrieveTopComments(ele, articleID), 1000);
          }
        };
        xhr.send(null);
      } else {
        thisPre = document.querySelector('#preview' + articleID);
        thisPre.parentNode.parentNode.style.marginBottom = '';
        thisPre.parentNode.removeChild(thisPre);
      }
    },
    onloadJSON: function (response) {
      var i,
      len,
      content,
      score,
      contentDiv,
      article,
      author,
      permalink,
      newHTML = '',
      comments = JSON.parse(response.responseText),
      commentsLength = comments[1].data.children.length,
      articleID = comments[0].data.children[0].data.id,
      threadLink = comments[0].data.children[0].data.permalink;
      len = topCP.opts.topComments < commentsLength ? topCP.opts.topComments : commentsLength;
      for (i = 0; i < len; i += 1) {
        content = comments[1].data.children[i].data.body_html;
        if (content) {
          contentDiv = document.createElement('div');
          contentDiv.innerHTML = content;
          content = contentDiv.firstChild.textContent;
          author = comments[1].data.children[i].data.author;
          score = comments[1].data.children[i].data.score;
          permalink = threadLink + comments[1].data.children[i].data.id;
          newHTML += (i > 0 ? '<hr>' : '');
          newHTML += '<a class="ulink" target="_blank" href="/u/' + author;
          newHTML += '">' + author + '</a>';
          newHTML += '<span class="points">| score: ' + score + '</span>';
          newHTML += '<a class="permalink" target="_blank" href="' + permalink + '">permalink</a><br />' + content;
        }
      }
      article = document.querySelector('#preview' + articleID);
      if (article) {
        article.classList.remove('loading');
        article.innerHTML = newHTML;
      }
    },
    addStyle: function () {
      var style,
      sheet = '';
      sheet += 'div[id^=preview]{box-sizing:border-box;-moz-box-sizing:border-box;background:#fff;border-radius:5px;border:1px solid #dbdbdb;white-space:normal;padding:5px;display:inline-block;margin:8px 0;}';
      sheet += '.loading:before{content:"Loading...";}div[id^=preview] .md{border:1px solid #ddd;background:#f0f0f0;box-sizing:border-box;-moz-box-sizing:border-box;margin:3px 0;box-sizing:border-box;padding:2px 8px;}';
      sheet += 'div[id^=preview] .md *{white-space:normal;}div[id^=preview] .md code{white-space:pre;}';
      sheet += 'div[id^=preview] .md pre{overflow:visible}div[id^=preview]>*{font-size: small;}';
      sheet += 'div[id^=preview] .ulink,div[id^=preview] .md a{font-weight:bold;color:#369!important;}';
      sheet += '.aubox a.disabled {color: #995F5F;font-weight: normal;}';
      sheet += '.aubox a.enabled {color: #009D2D;font-weight: normal;}';
      sheet += 'a.sideswitch {cursor:pointer;}';
      sheet += '.listing-page .buttons li{vertical-align:top;}.toplink{text-decoration:none;}';
      sheet += '.permalink { float: right; color: #666;}.points{color:#333;font-weight:bold;margin-left:.5em;}';
      sheet += '.res-nightmode div[id^=preview] .ulink,.res-nightmode div[id^=preview] .md a{color: rgb(20, 150, 220)!important;}';
      sheet += '.res-nightmode div[id^=preview]{ background: #333!important;border-color:#666!important}';
      sheet += '.res-nightmode .toplink{color: #eee!important;}';
      sheet += '.res-nightmode div[id^=preview] .points{color: #ddd!important;}';
      sheet += '.res-nightmode div[id^=preview] .permalink{color: #ccc!important;}';
      sheet += '.res-nightmode div[id^=preview] .md{background:#555!important;border-color: #222!important;}';
      sheet += '.res-nightmode div[id^=preview] .md blockquote{color:#8C8C8C!important;}';
      sheet += '.res-nightmode div[id^=preview] hr{border-color:#777!important;}';
      style = document.createElement('style');
      style.type = 'text/css';
      style.textContent = sheet;
      document.querySelector('head').appendChild(style);
    },
    toggle: function (className) {
      (function (style) {
        style.display = style.display === 'none' ? '' : 'none';
      }) (document.querySelector(className).style);
    },
    init: function () {
      if (!topCP.opts.disableSidebarButton)
      {
        var text = 'hide';
        if (GM_getValue('sideBarToggle', true))
        {
          text = 'show';
          topCP.toggle('.side');
        }
        var sidebar = document.createElement('li');
        sidebar.innerHTML = '<a class="sideswitch">' + text + ' sidebar</a>';
        sidebar.addEventListener('click', function (e) {
          topCP.toggle('.side');
          GM_setValue('sideBarToggle', !GM_getValue('sideBarToggle', true));
          var text = 'hide';
          if (GM_getValue('sideBarToggle')) text = 'show';
          document.querySelector('.sideswitch').innerHTML = text + ' sidebar';
        });
        document.querySelector('.tabmenu').appendChild(sidebar);
      } else {
        GM_setValue('sideBarToggle', false);
        document.querySelector('.side').style.display = '';
      }
      if (!topCP.opts.disableAutoloadButton)
      {
        var loadbar = document.createElement('li');
        loadbar.className = 'aubox';
        loadbar.innerHTML = '<a>load</a>';
        if (document.querySelector('#RESConsoleVersion') !== null)
        {
          var expimg = 'disabled';
          if (GM_getValue('autoExpandImages', false)) expimg = 'enabled';
          var spanImages = document.createElement('span');
          spanImages.innerHTML = '<a href="#" class="' + expimg + '">images</a>';
          spanImages.addEventListener('click', function (e) {
            GM_setValue('autoExpandImages', !GM_getValue('autoExpandImages', false));
            location.reload();
          });
          loadbar.appendChild(spanImages);
        }
        var expcom = 'disabled';
        if (GM_getValue('autoLoadComments', false)) expcom = 'enabled';
        var spanComments = document.createElement('span');
        spanComments.innerHTML = '<a href="#" class="' + expcom + '">comments</a>';
        spanComments.addEventListener('click', function (e) {
          GM_setValue('autoLoadComments', !GM_getValue('autoLoadComments', false));
          location.reload();
        });
        loadbar.appendChild(spanComments);
        document.querySelector('.tabmenu').appendChild(loadbar);
      } else {
        GM_setValue('autoExpandImages', false);
        GM_setValue('autoLoadComments', false);
      }
      document.body.addEventListener('DOMNodeInserted', function (e) {
        if ((e.target.tagName === 'DIV') && (e.target.getAttribute('id') && e.target.getAttribute('id').indexOf('siteTable') !== - 1)) {
          topCP.addTopLinks();
        }
      }, true);
      document.body.addEventListener('DOMNodeInserted', function (e) {
        if ((e.target.tagName === 'DIV') && (e.target.getAttribute('id') && e.target.getAttribute('id').indexOf('siteTable') !== - 1)) {
          topCP.addTopLinks();
        }
      }, true);
      if (!topCP.opts.disableShortCut && document.querySelector('#RESConsoleVersion') !== null)
      {
        window.addEventListener('keyup', function (e) {
          //t: keycode 84
          if (e.keyCode === 84 && document.querySelector('.RES-keyNav-activeElement')) {
            document.querySelector('.RES-keyNav-activeElement .toplink').click();
          }
        });
        if (GM_getValue('autoExpandImages', false))
        {
          document.querySelector('#viewImagesButton').click();
        }
      }
      topCP.addStyle();
      topCP.addTopLinks();
    }
  };
  if (document.body) {
    setTimeout(function () {
      topCP.init();
    }, 300);
  } else {
    window.addEventListener('load', function () {
      topCP.init();
    }, false);
  }
}) ();