29 lines
1.1 KiB
TypeScript
29 lines
1.1 KiB
TypeScript
import * as plugins from './domtools.plugins';
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import { LitElement } from 'lit-element';
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export class ElementInstrumenter {
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connectedElements = new plugins.lik.ObjectMap<LitElement>();
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public instrumentElement(elementArg: LitElement) {
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const addToConnectedElementsFunc = (eventArg: CustomEvent) => {
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this.connectedElements.add(elementArg);
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};
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const removeFromConnectedElementsFunc = eventArg => {
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this.connectedElements.remove(elementArg);
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elementArg.removeEventListener('domtools-connected', addToConnectedElementsFunc);
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elementArg.removeEventListener('domtools-disconnected', removeFromConnectedElementsFunc);
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};
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elementArg.addEventListener('domtools-connected', addToConnectedElementsFunc);
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elementArg.addEventListener('domtools-disconnected', removeFromConnectedElementsFunc);
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if (elementArg.parentElement) {
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this.connectedElements.add(elementArg);
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}
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}
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public async forEachelement(eachFuncArg: (elementArg: LitElement) => Promise<void>) {
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for (const elementArg of this.connectedElements.getArray()) {
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await eachFuncArg(elementArg);
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}
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}
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} |