task_scheduler/res/imp/job-timeline-sk.html

<!--
  This in an HTML Import-able file that contains the definition
  of the following elements:

    <job-timeline-sk>

  Status information about the task scheduler.

  To use this file import it:

    <link href="/res/imp/job-timeline-sk.html" rel="import" />

  Usage:

    <job-timeline-sk job="[[job]]" tasks="[[tasks]]" epochs="[[epochs]]"></job-timeline-sk>

  Properties:
    job: Job instance, as provided by the Task Scheduler server.
    tasks: Array of Task instances, as provided by the Task Scheduler server.
    epochs: Array of Strings; timestamps indicating events, eg. scheduler tick times.

  Methods:
    None.

  Events:
    None.
-->
<link rel="import" href="/res/imp/bower_components/polymer/polymer.html">
<dom-module id="job-timeline-sk">
  <template>
    <style>
    :host{
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    #svg {
      flex-grow: 1;
      min-width: 600px;
      min-height: 300px;
      max-width: 1800px;
      max-height: 800px;
    }
    </style>
    <h2>Job <span>[[job.id]]</span></h2>
    <svg id="svg"></svg>
  </template>
  <script src="/res/imp/bower_components/d3/d3.min.js"></script>
  <script src="/res/js/gantt.js"></script>
  <script>
  (function() {
    Polymer({
      is: "job-timeline-sk",

      properties: {
        job: {
          type: Object,
        },
        tasks: {
          type: Array,
        },
        epochs: {
          type: Array,
        },
        _chart: {
          type: Object,
        },
      },

      observers: [
        "_draw(job.*, tasks.*, epochs.*)",
      ],

      attached: function() {
        this._chart = gantt(this.$.svg);
        window.addEventListener("resize", this.draw.bind(this));
        this.draw();
      },

      draw: function() {
        this.debounce("draw", function() {
          this._draw();
        }.bind(this));
      },

      _draw: function() {
        if (!this.job || !this.tasks || this.epochs === undefined || !this._chart) {
          return;
        }
        var tasks = [{
          category: this.job.name + " (job)",
          start: new Date(this.job.created),
          end: new Date(this.job.finished),
        }];
        for (var i = 0; i < this.tasks.length; i++) {
          var t = this.tasks[i];
          tasks.push({
            category: t.name,
            start: new Date(t.created),
            end: new Date(t.finished),
          });
        }
        var epochs = [];
        for (var i = 0; i < this.epochs.length; i++) {
          epochs.push(new Date(this.epochs[i]));
        }
        this._chart.tasks(tasks).epochs(epochs).draw();
      }
    });
  })();
  </script>
</dom-module>