# All files / src/app/shared/components/sparkline sparkline.component.ts

91.18% Statements 31/34
66.67% Branches 6/9
57.14% Functions 4/7
90% Lines 27/30

Press n or j to go to the next uncovered block, b, p or k for the previous block.

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    12392x
    92x

    92x
    92x

    92x

    92x

    92x

    92x

    92x

    92x

    34x

    34x

    1x

    1x

    34x

    34x

    34x

    92x
    34x

    34x

    34x

    34x

    34x

    92x
    31x
    31x

    92x
     import { Component, ElementRef, OnChanges, OnInit, SimpleChanges, ViewChild } from '@angular/core';
    import { Input } from '@angular/core';

    import { ChartTooltip } from '../../models/chart-tooltip';
    import { DimlessBinaryPipe } from '../../pipes/dimless-binary.pipe';

    @Component({
      selector: 'cd-sparkline',
      template: require('./sparkline.component.html'),
      styles: []
    })
    export class SparklineComponent implements OnInit, OnChanges {
      @ViewChild('sparkCanvas')
      chartCanvasRef: ElementRef;
      @ViewChild('sparkTooltip')
      chartTooltipRef: ElementRef;

      @Input()
      data: any;
      @Input()
      style = {
        height: '30px',
        width: '100px'
      };
      @Input()
      isBinary: boolean;

      public colors: Array<any> = [
        {
          backgroundColor: 'rgba(40,140,234,0.2)',
          borderColor: 'rgba(40,140,234,1)',
          pointBackgroundColor: 'rgba(40,140,234,1)',
          pointBorderColor: '#fff',
          pointHoverBackgroundColor: '#fff',
          pointHoverBorderColor: 'rgba(40,140,234,0.8)'
        }
      ];

      options = {
        animation: {
          duration: 0
        },
        responsive: true,
        maintainAspectRatio: false,
        legend: {
          display: false
        },
        elements: {
          line: {
            borderWidth: 1
          }
        },
        tooltips: {
          enabled: false,
          mode: 'index',
          intersect: false,
          custom: undefined,
          callbacks: {
            label: (tooltipItem) => {
              if (this.isBinary) {
                return this.dimlessBinaryPipe.transform(tooltipItem.yLabel);
              } else {
                return tooltipItem.yLabel;
              }
            }
          }
        },
        scales: {
          yAxes: [
            {
              display: false
            }
          ],
          xAxes: [
            {
              display: false
            }
          ]
        }
      };

      public datasets: Array<any> = [
        {
          data: []
        }
      ];

      public labels: Array<any> = [];

      constructor(private dimlessBinaryPipe: DimlessBinaryPipe) {}

      ngOnInit() {
        const getStyleTop = (tooltip) => {
          return tooltip.caretY - tooltip.height - tooltip.yPadding - 5 + 'px';
        };

        const getStyleLeft = (tooltip, positionX) => {
          return positionX + tooltip.caretX + 'px';
        };

        const chartTooltip = new ChartTooltip(
          this.chartCanvasRef,
          this.chartTooltipRef,
          getStyleLeft,
          getStyleTop
        );

        chartTooltip.customColors = {
          backgroundColor: this.colors[0].pointBackgroundColor,
          borderColor: this.colors[0].pointBorderColor
        };

        this.options.tooltips.custom = (tooltip) => {
          chartTooltip.customTooltips(tooltip);
        };
      }

      ngOnChanges(changes: SimpleChanges) {
        this.datasets[0].data = changes['data'].currentValue;
        this.labels = [...Array(changes['data'].currentValue.length)];
      }
    }