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className for halo #8119

robbertbrak opened this Issue Apr 4, 2018 · 2 comments


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robbertbrak commented Apr 4, 2018

When I'm creating a pie chart using styled mode, I can assign a className to each data point ( However, this className is not added to the halo of the hovered pie slice ( That makes it a bit cumbersome to style the halo. Would it be possible for the halo to 'inherit' the className of the hovered data point?

For example, suppose I have 'status_ok' and 'status_error' classes, which are styled green and red. I would like the halos to be green and red as well. Right now I have to resort to something like this:

.highcharts-point.status_ok {
  fill: #339933;
  &.highcharts-point-hover ~ .highcharts-halo { fill: #339933; }

.highcharts-point.status_error {
  fill: #ff3333;
  &.highcharts-point-hover ~ .highcharts-halo { fill: #ff3333; }

That works, but it would be nice if I could simply write:

.highcharts-point.status_ok, .highcharts-halo.status_ok { fill: #339933; }
.highcharts-point.status_error, .highcharts-halo.status_error { fill: #ff3333; }

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sebastianbochan commented Apr 4, 2018

Hi @robbertbrak
It is a good idea!

I think that simpler is use + in CSS declaration


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robbertbrak commented Apr 4, 2018

@sebastianbochan: Unfortunately using + does not work, because within the .highcharts-series all the highcharts-point paths are at the same depth, followed by a single .highcharts-halo. See for why this does not work: the red point incorrectly gets a blue halo.

A second point: I now realize that I would actually like the className to be used for everything related to the data point, not just the halo. For example, a pie slice may have a label connector with base class highcharts-data-label-connector. The connector gets an additional highcharts-color-{n} class that I could in theory use.

However, that doesn't work for me, because I don't know in advance whether my status_ok data point is going to get highcharts-color-0 or highcharts-color-1. So it would be nice if the status_ok class would also be assigned to the label connector and all other chart elements uniquely connected to the data point.

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