TweetDeck autortl

tweetdeckrtl.user.js

// ==UserScript==
// @name        TweetDeck RTL checker
// @namespace   http://twitter.com/keykakito
// @description TweetDeck RTL checker
// @include     https://tweetdeck.twitter.com/
// @version     0.2
// @grant       none
// ==/UserScript==

(function() {
  var charsRegexp = /[\u0590-\u083F]|[\u08A0-\u08FF]|[\uFB1D-\uFDFF]|[\uFE70-\uFEFF]/mg,
      urlRegexp = /(https?|ftp):\/\/[^\s\/$.?#].[^\s]*/gi,
      mentionRegexp = /(\s|^)(@[a-zA-Z][a-zA-Z0-9_]{3,21})/g;

  function isRTL(originalText){
    var start, text, treshold, match;
    if (!originalText) return false;
    text = originalText.replace(mentionRegexp, '').replace(urlRegexp, '')
    start = text.search(charsRegexp);
    if (start === -1) return false;
    match = text.match(charsRegexp);
    treshold = text.search(charsRegexp) === 0 ? 5 : 2
    return match && match.length >= text.length / treshold
  };

  function nodeCheck(tweet) {
    if ( isRTL(tweet.textContent) ) {
      tweet.classList.add('tweet-text-rtl')
    }
    tweet.setAttribute('data-checked', true)
  }

  var arrEach = Array.prototype.forEach
  function each(arr, method) { arrEach.call(arr, method) }
  function query(q) {return document.querySelectorAll(q) }

  /* http://davidwalsh.name/javascript-debounce-function */
  function debounce(func, wait, immediate) {
    var timeout;
    return function() {
      var context = this, args = arguments;
      var later = function() {
        timeout = null;
        if (!immediate) func.apply(context, args);
      };
      var callNow = immediate && !timeout;
      clearTimeout(timeout);
      timeout = setTimeout(later, wait);
      if (callNow) func.apply(context, args);
    };
  };

  function checkRtlText() {
    this.style.direction = isRTL(this.value) ? 'rtl'  : 'ltr'
  }

  function checkRtl(box) {
    box.addEventListener('keyup', debounce(checkRtlText.bind(box), 100), true)
    box.setAttribute('data-checked', true)
  }

  function timeoutCheck(){
    each(query('.js-tweet-text:not([data-checked]),.js-quoted-tweet-text:not([data-checked])'), nodeCheck)
    each(query('.compose-text:not([data-checked])'), checkRtl)
  }
  function check() {
    setTimeout(timeoutCheck, 4)
  }

  (function(css) {
    var style;
    style = document.createElement('style');
    style.appendChild(document.createTextNode(css));
    document.head.appendChild(style);
  })('.tweet-text-rtl{ direction:rtl; text-align:right;} .link-complex {direction: ltr !important; unicode-bidi:embed;}')

  document.addEventListener("DOMNodeInserted", check, true);
  check()

})()