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c3 Favorites

12/15/2019, 2:37:06 PM

  1. // ==UserScript==
  2. // @name        c3 Favorites
  3. // @namespace   Violentmonkey Scripts
  4. // @match       https://fahrplan.events.ccc.de/*
  5. // @match       https://programm.froscon.de/*
  6. // @grant       none
  7. // @version     1.0
  8. // @author      -
  9. // @description 12/15/2019, 2:37:06 PM
  10. // ==/UserScript==
  11.  
  12.  
  13. var links = document.getElementsByTagName("a");
  14. var event_links = [];
  15. window.faved_events = [];
  16.  
  17. var myRegexp = /^.*fahrplan\.events\.ccc\.de\/(.*events\/([0-9]*))\.html$/;
  18.  
  19. for(var i=0; i<links.length; i++) {
  20.   var isEventlink = myRegexp.test(links[i].href);
  21.   var isNoIcon = (links[i].querySelectorAll(".image.small").length == 0);
  22.     if (isEventlink && isNoIcon){
  23.         event_links.push(links[i]);
  24.     }
  25. }
  26.  
  27. function insertAfter(newNode, referenceNode) {
  28.     referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
  29. }
  30.  
  31. function save() {
  32.   localStorage.setItem('faved_events', JSON.stringify(faved_events));
  33. }
  34.  
  35. function load() {
  36.   if(localStorage.faved_events){
  37.   var loaded_faved_events = localStorage.getItem('faved_events');
  38.   faved_events = JSON.parse(loaded_faved_events);
  39.  }
  40. }
  41.  
  42. load();
  43.  
  44.  
  45. window.favour_fav = function(eventId, el) {
  46.   var index = faved_events.indexOf(eventId); //check state before load. this way we don't toggle state, but change it to the opposite of what's currently reflected in the UI
  47.   //SMELL: only helps the first element that's wrong XD
  48.   
  49.   load();
  50.     if ( index != -1){
  51.        // console.log("un-faving "+eventId);
  52.       faved_events.splice(index,1);
  53.       
  54.     el.setAttribute("class", "favor_favable");
  55.       
  56.     }else{
  57.        // console.log("faving "+eventId);
  58.       faved_events.push(eventId);
  59.     el.setAttribute("class", "favor_faved");
  60.     }
  61.     save();
  62.     return;
  63. }
  64.  
  65. function makeFavable(originalElement, eventId){
  66.     var el = document.createElement("span");
  67.     el.innerHTML = " ";
  68.     el.setAttribute("eventID", eventId);
  69.     var index = faved_events.indexOf(eventId);
  70.     if ( index != -1){
  71.     el.setAttribute("class", "favor_faved");
  72.     }else{
  73.     el.setAttribute("class", "favor_favable");
  74.     }
  75.     el.setAttribute("onclick", "favour_fav('"+eventId+"',this)");
  76.     insertAfter(el, originalElement);
  77. }
  78.  
  79.  
  80. for(var i=0; i<event_links.length; i++) {
  81.   var eventLink = event_links[i].href;
  82.     var match = myRegexp.exec(eventLink);
  83.     var eventId = match[2];  
  84.     makeFavable(event_links[i], eventId);
  85. }
  86.  
  87. if(myRegexp.test(window.location.href)){
  88.     var match = myRegexp.exec(window.location.href);
  89.     var eventId = match[2];
  90.    el = document.getElementsByTagName("h2")[0];
  91.     makeFavable(el, eventId);
  92. } 
  93.  
  94.  
  95.