C3 charts - contents of tooltip clickable

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梦谈多话
梦谈多话 2021-01-05 12:20

I am making charts using c3.js. I have to make the contents of the tooltip cilckable. Till now, the tooltip is visible only when i hover over the chart. I have some Informat

2条回答
  •  再見小時候
    2021-01-05 13:21

    First (if you haven't already done so) override the tooltip position so that it doesn't keep running away when you try to click it.

    tooltip: {
        position: function () {
            var position = c3.chart.internal.fn.tooltipPosition.apply(this, arguments);
            position.top = 0;
            return position;
        },
    

    Then you need to override the hideTooltip function so that it doesn't close before your click event can be detected.

    var originalHideTooltip = chart.internal.hideTooltip
    chart.internal.hideTooltip = function () {
        setTimeout(originalHideTooltip, 100)
    };
    

    Then, you just need to override the pointer-events style (so that the mouse events are not ignored) and then attach the handler as you normally would in jQuery

    $(".c3-tooltip-container")
        .css("pointer-events", "auto")
        .on('click', '.info:eq(2)', function () {
            // add click functionality here. you could pass in additional data using the span attributes
            alert($(this).text())
        })
    

    Modify the selector as required (like adding the chart wrapper id...)


    Fiddle - http://jsfiddle.net/5vbeb4k8/

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