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/*
* Pointless Viewer, a web-based Beamer presentation viewer
* Copyright (C) 2018 Pacien TRAN-GIRARD
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
"use strict";
class Timer {
constructor(window) {
this.display = window.document.getElementById("timer");
this.startTime = null;
this._setDisplay(0);
}
start() {
if (this.startTime != null) return;
this.startTime = Date.now();
const self = this;
setInterval(function() {
self._runTimer();
}, 1000);
}
_runTimer() {
const timeDelta = Math.floor((Date.now() - this.startTime) / 1000);
this._setDisplay(timeDelta);
}
_setDisplay(seconds) {
const dateObj = new Date(null);
dateObj.setSeconds(seconds);
this.display.textContent = dateObj.toISOString().substr(11, 8);
}
}
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