filter-for-danyk.js

// ==UserScript==
// @name       Toggler based on nicknames
// @namespace  GHC
// @version    0.2
// @description  to get rid of bullshits and tldrs
// @match      http://danyk.cz/kniha/kniha.php*
// @require    http://code.jquery.com/jquery-2.1.0.min.js
// @require    http://cdnjs.cloudflare.com/ajax/libs/jquery-cookie/1.4.0/jquery.cookie.js
// @copyright  2014+, Goheeca
// ==/UserScript==

var nicks = {};
var comments = '.odpov .jmeno_o';
var commentsContent = '.text_o';
var threads  = '.jmeno';
var threadsContent = '.text';
var threadsComments = '.odpov';
var maskLabel = ['#','*'];
var togLabel = ['+','-'];

function getNick(s) {
  var matches = s.match(/((\S+)(?=:)|(\S+))/);
  return matches[1];
};

var init;

function tog () {
  var name = $(this);
  var content;
  if (name.hasClass(threads.slice(1))) {
    content = name.nextUntil(name.next('hr'),threadsComments).add(name.next(threadsContent));
  } else {
    content = name.siblings(commentsContent);
  }
  content.hide();
  name.append(
  $('<a>',
    {
    class: 'toggler',
    href: 'javascript:void(0)',
    text: togLabel[0],
    click: function() {
      var toggler = name.children('.toggler');
      if(toggler.text() == togLabel[0]) {
        toggler.text(togLabel[1]);
        content.show();
      } else {
        toggler.text(togLabel[0]);
        content.hide();
      }		
    }}));
};

function reinit(anchor) {
  var beforePosition = anchor.offset().top - $(window).scrollTop();
  $(comments).add(threads).each(function () {
    $(this).children('.masker').remove();
    $(this).children('.toggler').click().remove();
  });
  $.cookie('nicks', JSON.stringify(nicks));
  init();
  var afterPosition = anchor.offset().top - $(window).scrollTop();
  $(window).scrollTop($(window).scrollTop()+afterPosition-beforePosition);
};

function mask() {
  var name = $(this);
  name.append(
    $('<a>',
      {
      class: 'masker',
      href: 'javascript:void(0)',
      text: nicks[getNick(name.text())] ? maskLabel[1] : maskLabel[0],
      click: function() {
        var masker = name.children('.masker');
        if(masker.text() == maskLabel[0]) {
          masker.text(maskLabel[1]);
          nicks[getNick(name.text())] = true;
          reinit(name);
        } else {
          masker.text(maskLabel[0]);
          nicks[getNick(name.text())] = false;
          reinit(name);
        }
    }}));
};

init = function() {
  if(typeof $.cookie('nicks') == 'undefined') $.cookie('nicks', JSON.stringify(nicks));
  nicks = JSON.parse($.cookie('nicks'));
  $(comments).add(threads).each(mask);
  $(comments).add(threads).filter(function () {
    var this_nick = getNick($(this).text()); 
    var ret = false;
    $.each(nicks, function(nick, mask) {
      if(mask && nick === this_nick) ret = true;
    });
    return ret;
  }).each(tog);
};

$(init);