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Merge pull request #3325 from chartjs/fix/3269

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Improve multiline labeling for tooltips in doughnut charts
This commit is contained in:
Simon Brunel
2016-09-24 22:31:29 +02:00
committed by GitHub
parent 62ef40ebf6 9041b5a2b9
commit d407da4e36
3 changed files with 281 additions and 267 deletions
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14
src/controllers/controller.doughnut.js
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@@ -102,7 +102,19 @@ module.exports = function(Chart) {
return '';
},
label: function(tooltipItem, data) {
return data.labels[tooltipItem.index] + ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
var dataLabel = data.labels[tooltipItem.index];
var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
if (helpers.isArray(dataLabel)) {
// show value on first line of multiline label
// need to clone because we are changing the value
dataLabel = dataLabel.slice();
dataLabel[0] += value;
} else {
dataLabel += value;
}
return dataLabel;
}
}
}