32 lines
934 B
JavaScript
32 lines
934 B
JavaScript
class UIUtils {
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static instantiateTemplate(templateId) {
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return document.getElementById(templateId).content.firstElementChild.cloneNode(true);
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}
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static createChartViewElementWithHeading(heading) {
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const chartViewElement = UIUtils.instantiateTemplate('template-ChartView');
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chartViewElement.querySelector(".heading").textContent = heading;
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return {
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chartViewElement: chartViewElement,
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canvas: chartViewElement.querySelector(".canvas")
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};
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}
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static getSelectedOption(selectElement) {
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return selectElement.options[selectElement.selectedIndex];
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}
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static labelWithPercentCallback(context) {
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let label = context.dataset.label || '';
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if (label) {
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label += ': ';
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}
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if (context.parsed.y !== null) {
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label += context.parsed.y.toFixed(1) + "%";
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}
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return label;
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}
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}
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