gistfile1.js

  addAlert: function(alert) {
    var testOpts = alert.testOpts || {};

    if (this.alerts.length) {
      this.removeCurrentAlert();
    }

    this.alerts.unshift(alert);

    this._screenLock = this._screenLock || navigator.requestWakeLock('screen');
    clearTimeout(this._screenTimeout);
    this._screenTimeout = setTimeout(() => {
      console.log('Releasing screen lock.');
      this._screenLock.unlock();
      this._screenLock = null;
    }, testOpts.screenOnDuration || SCREEN_ON_DURATION);

    this._cpuLock = this._cpuLock || navigator.requestWakeLock('cpu');
    clearTimeout(this._cpuTimeout);
    this._cpuTimeout = setTimeout(() => {
      console.log('Releasing CPU lock and silencing alarm.');
      this._cpuLock.unlock();
      this._cpuLock = null;
      this.silence();
    }, testOpts.audibleDuration || AUDIBLE_DURATION);

    this.silence();

    this.ringLabel.textContent = this.alert.label ||
      mozL10n.get(this.alert.type === 'alarm' ? 'alarm' : 'timer');

    this.ringDisplay.dataset.ringType = this.alert.type;
    this.time.innerHTML = Utils.getLocalizedTimeHtml(alert.time);

    if (this.alert.sound) {
      this.ringtonePlayer.playRingtone(this.alert.sound);
    }

    if (this.alert.vibrate && ('vibrate' in navigator)) {
      clearInterval(this.vibrateInterval);
      var vibrateOnce = function() {
        navigator.vibrate([1000]);
      };
      this.vibrateInterval = setInterval(vibrateOnce, 2000);
      vibrateOnce();
    }

    document.documentElement.classList.add('ready');
    window.focus();
  },