chart-line.html

<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html">
<link rel="import" href="chart-js-import.html">
<link rel="import" href="chart-property-behavior.html">
<link rel="import" href="context-behavior.html">
<link rel="import" href="resize-behavior.html">

<!--
A line chart is a way of plotting data points on a line.

Often, it is used to show trend data, and the comparison of two data sets.

##### Example

    <chart-line data="[[data]]"></chart-line>

    ...

    this.data = {
      labels: ["January", "February", "March", "April", "May", "June", "July"],
      datasets: [
        {
          label: "My First dataset",
          backgroundColor: "rgba(220,220,220,0.2)",
          borderColor: "rgba(220,220,220,1)",
          borderWidth: 1,
          pointBackgroundColor: "rgba(220,220,220,1)",
          pointBorderColor: "#fff",
          pointHoverBackgroundColor: "#fff",
          pointHoverBorderColor: "rgba(220,220,220,1)",
          data: [65, 59, 80, 81, 56, 55, 40]
        },
        {
          label: "My Second dataset",
          backgroundColor: "rgba(151,187,205,0.2)",
          borderColor: "rgba(151,187,205,1)",
          borderWidth: 1,
          pointBackgroundColor: "rgba(151,187,205,1)",
          pointBorderColor: "#fff",
          pointHighlightFill: "#fff",
          pointHoverBorderColor: "rgba(151,187,205,1)",
          data: [28, 48, 40, 19, 86, 27, 90]
        }
      ]
    };

@group Chart Elements
@element chart-line
@demo demo/chart-line.html
-->

<link rel="import" href="chart-styles.html">
<dom-module id="chart-line">

  <template>

    <style include="chart-styles"></style>

    <div>
      <canvas id="canvas"></canvas>
    </div>

  </template>

  <script>
    class ChartLine extends ChartBehaviors.ResizeBehavior(ChartBehaviors.ContextBehavior(ChartBehaviors.ChartPropertyBehavior(Polymer.mixinBehaviors([Polymer.IronResizableBehavior], Polymer.Element)))) {

      static get is() { return 'chart-line'; }

      ready() {
        super.ready();
        this._setType('line');
      }

    };

    window.customElements.define(ChartLine.is, ChartLine);
  </script>
</dom-module>