bicyclesonthemoon.info Git - ott/bsta/blob - timer.js

   1 // timer.js
   2 //
   3 // The countdown script.
   4 //
   5 // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-3.0
   6 //    Copyright (C) 2017, 2024  Balthasar Szczepański
   7 //
   8 //    This program is free software: you can redistribute it and/or modify
   9 //    it under the terms of the GNU Affero General Public License as
  10 //    published by the Free Software Foundation, either version 3 of the
  11 //    License, or (at your option) any later version.
  12 //
  13 //    This program is distributed in the hope that it will be useful,
  14 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 //    GNU Affero General Public License for more details.
  17 //
  18 //    You should have received a copy of the GNU Affero General Public License
  19 //    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 // @license-end
  21
  22 var enabled = false;
  23
  24 window.onload = function () {
  25         var e_h;
  26         var e_m;
  27         var e_s;
  28         var h;
  29         var m;
  30         var s;
  31         var countdown;
  32         var timer;
  33
  34         e_h = document.getElementById("ongh");
  35         e_m = document.getElementById("ongm");
  36         e_s = document.getElementById("ongs");
  37
  38         h = +(e_h.innerHTML);
  39         m = +(e_m.innerHTML);
  40         s = +(e_s.innerHTML);
  41
  42         timer = document.getElementById("timer");
  43         timer.onclick = function () {
  44                 enabled = !enabled;
  45         }
  46
  47         if (e_h == null || e_m == null || e_s == null) {
  48                 // window.alert("NUL");
  49         }
  50         else {
  51                 countdown = setInterval (function() {
  52                         if(isNaN(h) || isNaN(m) || isNaN(s)) {
  53                                 // window.alert("NAN");
  54                                 clearInterval(countdown);
  55                                 return;
  56                         }
  57
  58                         if (s > 0) {
  59                                 s -= 1;
  60                         }
  61                         else {
  62                                 s = 59;
  63                                 if (m > 0) {
  64                                         m -= 1;
  65                                 }
  66                                 else {
  67                                         m == 59;
  68                                         if (h > 0) {
  69                                                 h -= 1;
  70                                         }
  71                                         else {
  72                                                 m = 0;
  73                                                 s = 0;
  74                                         }
  75                                 }
  76                         }
  77
  78                         if (enabled) {
  79                                 if (h == 0 && m == 0 && s == 0) {
  80                                         e_h.innerHTML = "00";
  81                                         e_m.innerHTML = "00";
  82                                         e_s.innerHTML = "NG";
  83                                         // window.alert("ONG");
  84                                         clearInterval(countdown);
  85                                         return;
  86                                 }
  87                                 else {
  88                                         e_h.innerHTML = ((h < 10) ? "0" : "") + h;
  89                                         e_m.innerHTML = ((m < 10) ? "0" : "") + m;
  90                                         e_s.innerHTML = ((s < 10) ? "0" : "") + s;
  91                                 }
  92                         }
  93                 }, 1000);
  94         }
  95 };