Reddit - Top Comments Preview

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

Verzia zo dňa 25.04.2015. Pozri najnovšiu verziu.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, Greasemonkey alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, % alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, % alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey alebo Userscripts.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie, ako napríklad Tampermonkey.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie správcu používateľských skriptov.

(Už mám správcu používateľských skriptov, nechajte ma ho nainštalovať!)

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

(Už mám správcu používateľských štýlov, nechajte ma ho nainštalovať!)

// ==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);
  }
}) ();