95 lines
1.9 KiB
JavaScript
95 lines
1.9 KiB
JavaScript
class CustomChart extends HTMLElement {
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constructor () {
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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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* {
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box-sizing: border-box;
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font-family: monospace;
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}
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figure {
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margin: 0;
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}
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div {
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max-width: 400px;
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aspect-ratio: 1 / 1;
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}
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figcaption {
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text-align: center;
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margin-top: 10px;
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display: flex;
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flex-direction: column;
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}
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</style>
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<style id="responsive-style" media="not all">
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figure {
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display: flex;
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align-items: center;
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flex-direction: row;
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flex-wrap: nowrap;
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justify-content: flex-start;
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}
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div {
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max-height: 1lh;
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}
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figcaption {
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margin: 0;
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margin-left: 10px;
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display: flex;
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flex-direction: row;
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gap: 1ch;
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font-size: small;
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}
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</style>
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<figure>
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<div>
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<canvas>
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</div>
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<figcaption></figcaption>
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</figure>
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`;
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this.responsiveStyle = this.shadowRoot.querySelector("#responsive-style");
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this.canvas = this.shadowRoot.querySelector("canvas");
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this.caption = this.shadowRoot.querySelector("figcaption");
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}
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set data (data) {
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if (data.chart?.options?.plugins?.title.display) {
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data.chart.options.plugins.title.display = false;
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for (let line of data.chart.options.plugins.title.text) {
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this.caption.innerHTML += `<span>${line}</span>`
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}
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}
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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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set responsive (breakpoint) {
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this.breakpoint = breakpoint;
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if (breakpoint) {
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this.responsiveStyle.media = `screen and (width <= ${breakpoint})`;
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}
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else {
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this.responsiveStyle.media = "not all";
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}
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}
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get responsive () {
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return this.breakpoint;
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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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