42 lines
1.1 KiB
TypeScript
42 lines
1.1 KiB
TypeScript
export const activeWidgets = new Set<DomWidget>();
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export interface DomWidget {
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dom?: HTMLElement;
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// Drop any prewarmed callback result so the next renderContent runs the
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// callback fresh. Used by reloadAllWidgets so refresh forces fresh data.
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invalidatePrewarm(): void;
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renderContent(
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div: HTMLElement,
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cachedHtml: string | undefined,
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): Promise<void>;
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}
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export async function reloadAllWidgets() {
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for (const widget of [...activeWidgets]) {
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if (!widget.dom || !widget.dom.parentNode) {
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activeWidgets.delete(widget);
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continue;
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}
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widget.invalidatePrewarm();
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// Create an empty widget DIV node
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const newEl = document.createElement("div");
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await widget.renderContent(newEl, undefined);
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// Replace the old widget with the new one
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widget.dom.innerHTML = "";
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widget.dom.appendChild(newEl);
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}
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}
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function garbageCollectWidgets() {
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for (const widget of activeWidgets) {
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if (!widget.dom || !widget.dom.parentNode) {
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// console.log("Garbage collecting widget", widget.bodyText);
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activeWidgets.delete(widget);
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}
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}
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}
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setInterval(garbageCollectWidgets, 5000);
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