Gantt Chart with Interactive Editing

author(s): Øystein Moseng

by vasagi

HTML

<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.css">
<script src="https://code.highcharts.com/gantt/highcharts-gantt.js"></script>

<div class="main-container">
  <div id="container"></div>
  <button id="update">Update data</button>
</div>

CSS

#container,
#buttonGroup {
  max-width: 1200px;
  min-width: 320px;
  margin: 1em auto;
}

.hidden {
  display: none;
}

.main-container button {
  font-size: 12px;
  border-radius: 2px;
  border: 0;
  background-color: #ddd;
  padding: 13px 18px;
}

.main-container button[disabled] {
  color: silver;
}

.button-row button {
  display: inline-block;
  margin: 0;
}

.overlay {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.3);
  transition: opacity 500ms;
}

.popup {
  margin: 70px auto;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  width: 300px;
  position: relative;
}

.popup input,
.popup select {
  width: 100%;
  margin: 5px 0 15px;
}

.popup button {
  float: right;
  margin-left: 0.2em;
}

.popup .clear {
  height: 50px;
}

.popup input[type=text],
.popup select {
  height: 2em;
  font-size: 16px;
}

JavaScript

const today = new Date().getTime();
const day = 1000 * 60 * 60 * 24;

const createData = (label = "Project") => Array.from({
  length: 5
}, (_, n) => ({
  name: `${label} ${n}`,
  start: today + (Math.random() * n) * day,
  end: today + ((n + 1) * day) + (Math.random() * n) * day,
  y: n
}));

const createConfig = data => ({
  chart: {
    spacingLeft: 1
  },

  plotOptions: {
    series: {
      dataLabels: {
        enabled: true,
        format: '{point.name}',
        style: {
          cursor: 'default',
          pointerEvents: 'none'
        }
      }
    }
  },

  yAxis: {
  title:'check',
  enabled: true,
    type: 'category',
    labels: {
      formatter() {
        const data = this.chart.options.series[0].data[this.pos]
        return data.name
      }
    }
  },

  tooltip: {
    xDateFormat: '%a %b %d, %H:%M'
  },

  series: [{
    type: "gantt",
    name: 'Projects',
    data
  }]
});

const data = createData();
const config = createConfig(data);
const chart = Highcharts.ganttChart('container', config)

const labels = ["Project", "Foo", "Bar"];
let currentLabel = 0;
document.querySelector("#update").onclick = e => {
  const label = labels[++currentLabel % labels.length];
  const data = createData(label);
  const config = createConfig(data);
  chart.update(config)
}