dashboard/js/main.js

   1 var API_HOST = "http://127.0.0.1:5001";
   2 var ERROR_ALERT = true;
   3 var TIMESTAMP = 0;
   4
   5
   6
   7 function updateMessageTable(msg_list) {
   8
   9 }
  10
  11 function updateMessageCount(msg_list) {
  12     $("#lbl_msg_count").text(msg_list.length);
  13 }
  14
  15 function fetchMessages() {
  16
  17 }
  18
  19
  20 function autoFetchMessages() {
  21     fetchMessages();
  22     // do periodic update
  23     if(AUTO_REFRESH)
  24             setTimeout(autoFetchMessages, AUTO_REFRESH_INTERVAL);
  25 }
  26
  27 function updateLateness() {
  28     lateness = (Date.now() - LAST_UPDATE_TIMESTAMP) / 1000;
  29     $("#lbl_lateness").text("Lateness: " + Number(lateness).toPrecision(3) + "s")
  30     setTimeout(updateLateness, LATENESS_UPDATE_INTERVAL)
  31 }
  32
  33 function errorAjaxConnection()
  34 {
  35     // only do once
  36     if(!ERROR_ALERT)
  37     {
  38         ERROR_ALERT = true;
  39         // show message
  40         bootbox.alert("ERROR!\nAPI request failed.\n\n Please check the backend connection.", function() {
  41             // callback
  42             ERROR_ALERT = false;
  43         });
  44     }
  45 }
  46
  47 function change_auto_refresh(event)
  48 {
  49     console.debug("trigger btn_auto_refresh");
  50     AUTO_REFRESH = !AUTO_REFRESH;
  51     if(AUTO_REFRESH) {
  52         $("#btn_autorefresh").addClass("active");
  53         autoFetchMessages();
  54     }
  55     else {
  56         $("#btn_autorefresh").removeClass("active");
  57     }
  58 }
  59
  60
  61 $(document).ready(function(){
  62     console.info("document ready");
  63         // setup global connection error handling
  64         $.ajaxSetup({
  65       "error": errorAjaxConnection
  66         });
  67
  68     // add listeners
  69     //TODO
  70
  71     // activate message fetching
  72     autoFetchMessages();
  73     LAST_UPDATE_TIMESTAMP = Date.now();
  74     updateLateness();
  75
  76
  77     // refresh on window focus
  78     $(window).focus(function () {
  79         // TODO observe if this works well
  80         fetchMessages();
  81     });
  82
  83 });