public/javascripts/index.js

   1 new Vue({
   2     el: "#indexPage",
   3     data: {
   4         counts: {},
   5         curPrefix: "",
   6         conn: null,
   7     },
   8     computed: {
   9         sortedCounts: function () {
  10             const variantsCounts = variantArray.map( v => {
  11                 return {
  12                     name: v.name,
  13                     desc: v.description,
  14                     count: this.counts[v.name] || 0,
  15                 };
  16             });
  17             return variantsCounts.sort((a,b) => {
  18                 if (a.count != b.count)
  19                     return b.count - a.count;
  20                 // Else, alphabetic ordering
  21                 return a.name.localeCompare(b.name);
  22             });
  23         },
  24     },
  25     created: function() {
  26         const url = socketUrl;
  27         const sid = getRandString();
  28         this.conn = new WebSocket(url + "/?sid=" + sid + "&page=index");
  29         const socketMessageListener = msg => {
  30             const data = JSON.parse(msg.data);
  31             if (data.code == "counts")
  32                 this.counts = data.counts;
  33             else if (data.code == "increase")
  34                 this.counts[data.vname]++;
  35             else if (data.code == "decrease")
  36                 this.counts[data.vname]--;
  37         };
  38         const socketCloseListener = () => {
  39             this.conn = new WebSocket(url + "/?sid=" + sid + "&page=index");
  40             this.conn.addEventListener('message', socketMessageListener);
  41             this.conn.addEventListener('close', socketCloseListener);
  42         };
  43         this.conn.onmessage = socketMessageListener;
  44         this.conn.onclose = socketCloseListener;
  45     },
  46     mounted: function() {
  47         // Handle key stroke
  48         document.onkeydown = event => {
  49             // Is it Back or Esc? If yes, apply action on current word
  50             if (event.keyCode == 8) //Back
  51             {
  52                 event.preventDefault();
  53                 this.curPrefix = this.curPrefix.slice(0,-1);
  54             }
  55             else if (event.keyCode == 27) //Esc
  56             {
  57                 event.preventDefault();
  58                 this.curPrefix = "";
  59             }
  60             // Is it alphanumeric? If yes, stack it
  61             else if (_.range(48,58).includes(event.keyCode)
  62                 || _.range(65,91).includes(event.keyCode)
  63                 || _.range(97,123).includes(event.keyCode))
  64             {
  65                 let newChar = String.fromCharCode(event.keyCode);
  66                 this.curPrefix += this.curPrefix.length==0
  67                     ? newChar.toUpperCase()
  68                     : newChar.toLowerCase();
  69             }
  70             // ...ignore everything else
  71         };
  72         // Show welcome dialog box if "first visit"
  73         const visited = getCookie("visited");
  74         if (!visited || visited !== "1")
  75             document.getElementById("modal-welcome").checked = true;
  76     },
  77 });