36 lines
726 B
JavaScript
36 lines
726 B
JavaScript
class CustomChart extends HTMLElement {
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constructor (data) {
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super();
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this.attachShadow({ mode: "open" });
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this.shadowRoot.innerHTML = `
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<style>
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div {
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min-width: 200px;
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max-width: 400px;
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aspect-ratio: 1 / 1;
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}
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</style>
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<div>
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<canvas>
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</div>
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`;
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this.canvas = this.shadowRoot.querySelector("canvas");
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}
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set data (data) {
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this.canvas.role = "img";
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this.canvas.ariaLabel = data.ariaLabel;
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createChart(this.canvas, data.chart);
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}
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get data () {
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return null;
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}
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}
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function createChart (ctx, data) {
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return new Chart(ctx, data);
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}
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customElements.define("custom-chart", CustomChart);
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