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              @font-face {
  font-family: "Digital";
  src: url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.eot");
  src: url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.eot?#iefix") format("embedded-opentype"), url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.woff2") format("woff2"), url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.woff") format("woff"), url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.ttf") format("truetype"), url("//db.onlinewebfonts.com/t/8e22783d707ad140bffe18b2a3812529.svg#Digital-7") format("svg");
}

body {
  background: #1E555C;
  color: white;
  font-size: 30px;
  text-align: center;
  font-family: 'Righteous';
  #container {
    display: flex;
    height: 100vh;
    justify-content: center;
    align-items: center;
    .main-title {
      font-size: 50px;
      margin-bottom: 20px;
    }
    .length-control {
      width: 250px;
    }
    button {
      background: none;
      outline: none;
      border: none;
      color: white;
      cursor: pointer;
    }
    .btn-level,
    .length-control {
      display: inline-block;
      .btn-level:nth-child(3) {
        width: 40px;
      }
    }
    .timer {
      border: 7px solid #13353a;
      margin: 20px auto 10px auto;
      width: 270px;
      height: 160px;
      border-radius: 50px;
      position: relative;
      .timer-wrapper {
        position: absolute;
        width: 190px;
        height: 110px;
        left: 50%;
        top: 50%;
        margin-left: -95px;
        margin-top: -57px;
      }
      #time-left {
        font-family: digital;
        font-size: 80px;
      }
      .timer-control button:active {
        color: #13353a;
      }
    }
  }
}

@media screen and (max-width: 500px) {
  #container {
    transform: scale(0.8);
    -webkit-transform: scale(0.8);
    -moz-transform: scale(0.8);
    -ms-transform: scale(0.8);
    -o-transform: scale(0.8);
  }
}

.author {
  text-align: center;
  font-family: Share Tech Mono, sans;
  margin-top: 15px;
  font-size: 14px;
  color: #a50d0d;;
  a {
    text-decoration: none;
    color: #00264d;
    line-height: 26px;
  }
}

            
          
!
            
                
// coded by @no-stack-dub-sack (github) / @no_stack_sub_sack (codepen)

/** NOTES:
/** Dependencies are React, ReactDOM, and 
    Accurate_Interval.js by Squuege (external script 
    to keep setInterval() from drifting over time & 
    thus ensuring timer goes off at correct mark).
/** Utilizes embedded <Audio> tag to ensure audio 
    plays when timer tab is inactive or browser is 
    minimized ( rather than new Audio().play() ).
/** Audio of this fashion not supported on most 
    mobile devices it would seem (bummer I know).
**/

// PROJECTOR SELECTOR FOR EXTERNAL TEST SCRIPT:
const projectName = 'pomodoro-clock';
localStorage.setItem('example_project', 'Pomodoro Clock');

// COMPONENTS:
class TimerLengthControl extends React.Component {
  render() {
    return (
      <div className="length-control">
        <div id={this.props.titleID}>
          {this.props.title}
        </div>
        <button id={this.props.minID}
          className="btn-level" value="-" 
          onClick={this.props.onClick}>
          <i className="fa fa-arrow-down fa-2x"/>
        </button>
        <div id={this.props.lengthID} className="btn-level">
          {this.props.length}
        </div>
        <button id={this.props.addID}
          className="btn-level" value="+" 
          onClick={this.props.onClick}>
          <i className="fa fa-arrow-up fa-2x"/>
        </button>
      </div>
    )
  }
};

class Timer extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      brkLength: 5,
      seshLength: 25,
      timerState: 'stopped',
      timerType: 'Session',
      timer: 1500,
      intervalID: '',
      alarmColor: {color: 'white'}
    }
    this.setBrkLength = this.setBrkLength.bind(this);
    this.setSeshLength = this.setSeshLength.bind(this);
    this.lengthControl = this.lengthControl.bind(this);
    this.timerControl = this.timerControl.bind(this);
    this.beginCountDown = this.beginCountDown.bind(this);
    this.decrementTimer = this.decrementTimer.bind(this);
    this.phaseControl = this.phaseControl.bind(this);
    this.warning = this.warning.bind(this);
    this.buzzer = this.buzzer.bind(this);
    this.switchTimer = this.switchTimer.bind(this);
    this.clockify = this.clockify.bind(this);
    this.reset = this.reset.bind(this);
  }
  setBrkLength(e) {
    this.lengthControl('brkLength', e.currentTarget.value, 
    this.state.brkLength, 'Session');
  }
  setSeshLength(e) {
    this.lengthControl('seshLength', e.currentTarget.value, 
    this.state.seshLength, 'Break');
  }
  lengthControl(stateToChange, sign, currentLength, timerType) {
    if (this.state.timerState == 'running') return;
    if (this.state.timerType == timerType) {
      if (sign == "-" && currentLength != 1 ) {
        this.setState({[stateToChange]: currentLength - 1});
      } else if (sign == "+" && currentLength != 60) {
        this.setState({[stateToChange]: currentLength + 1});
      } 
    } else {
      if (sign == "-" && currentLength != 1 ) {
        this.setState({[stateToChange]: currentLength - 1,
        timer: currentLength * 60 - 60});
      } else if (sign == "+" && currentLength != 60) {
        this.setState({[stateToChange]: currentLength + 1,
        timer: currentLength * 60 + 60});
      } 
    }
  }
  timerControl() {
    let control = this.state.timerState == 'stopped' ? (
      this.beginCountDown(),
      this.setState({timerState: 'running'})
    ) : (
      this.setState({timerState: 'stopped'}),
      this.state.intervalID && this.state.intervalID.cancel()
    );
  }
  beginCountDown() {
    this.setState({
      intervalID: accurateInterval(() => {
        this.decrementTimer(); 
        this.phaseControl();
       }, 1000)
    })
  }
  decrementTimer() {
    this.setState({timer: this.state.timer - 1});
  }
  phaseControl() {
    let timer = this.state.timer;
    this.warning(timer);
    this.buzzer(timer);
    if (timer < 0) { 
      this.state.timerType == 'Session' ? (
        this.state.intervalID && this.state.intervalID.cancel(),
        this.beginCountDown(),
        this.switchTimer(this.state.brkLength * 60, 'Break')
      ) : (
        this.state.intervalID && this.state.intervalID.cancel(),
        this.beginCountDown(),
        this.switchTimer(this.state.seshLength * 60, 'Session')
      );
    }  
  }
  warning(_timer) {
    let warn = _timer < 61 ? 
    this.setState({alarmColor: {color: '#a50d0d'}}) : 
    this.setState({alarmColor: {color: 'white'}});
  }
  buzzer(_timer) {
    if (_timer === 0) {
      this.audioBeep.play();
    }
  }
  switchTimer(num, str) {
    this.setState({
      timer: num,
      timerType: str,
      alarmColor: {color: 'white'}
    })
  }
  clockify() {
    let minutes = Math.floor(this.state.timer / 60);
    let seconds = this.state.timer - minutes * 60;
    seconds = seconds < 10 ? '0' + seconds : seconds;
    minutes = minutes < 10 ? '0' + minutes : minutes;
    return minutes + ':' + seconds;
  }
  reset() {
    this.setState({
      brkLength: 5,
      seshLength: 25,
      timerState: 'stopped',
      timerType: 'Session',
      timer: 1500,
      intervalID: '',
      alarmColor: {color: 'white'}
    });
    this.state.intervalID && this.state.intervalID.cancel();
    this.audioBeep.pause();
    this.audioBeep.currentTime = 0;
  }
  render() {
    return (
      <div>
        <div className="main-title">
          Pomodoro Clock
        </div>
        <TimerLengthControl 
          titleID="break-label"   minID="break-decrement"
          addID="break-increment" lengthID="break-length"
          title="Break Length"    onClick={this.setBrkLength}
          length={this.state.brkLength}/>
        <TimerLengthControl 
          titleID="session-label"   minID="session-decrement"
          addID="session-increment" lengthID="session-length"
          title="Session Length"    onClick={this.setSeshLength} 
          length={this.state.seshLength}/>
        <div className="timer" style={this.state.alarmColor}>
          <div className="timer-wrapper">
            <div id='timer-label'>
              {this.state.timerType}
            </div>
            <div id='time-left'>
              {this.clockify()}
            </div>
          </div>
        </div>
        <div className="timer-control">
          <button id="start_stop" onClick={this.timerControl}>
            <i className="fa fa-play fa-2x"/>
            <i className="fa fa-pause fa-2x"/>
          </button>
          <button id="reset" onClick={this.reset}>
            <i className="fa fa-refresh fa-2x"/>
          </button>
        </div>
        <div className="author"> Designed and Coded by <br />
          <a target="_blank" href="https://goo.gl/6NNLMG"> 
            Peter Weinberg
          </a>
        </div>
        <audio id="beep" preload="auto" 
          src="https://goo.gl/65cBl1"
          ref={(audio) => { this.audioBeep = audio; }} />
      </div>
    )
  }
};

ReactDOM.render(<Timer />, document.getElementById('app'));



            
          
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