wehub-resource-sync
29 lines
788 B
TypeScript
29 lines
788 B
TypeScript
export type LifecycleEvent = 'foreground' | 'background' | 'destroy';
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type LifecycleCallback = (event: LifecycleEvent) => void;
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const listeners = new Map<string, Set<LifecycleCallback>>();
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export const AppLifecycle = {
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subscribe(appId: string, cb: LifecycleCallback): () => void {
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if (!listeners.has(appId)) listeners.set(appId, new Set());
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listeners.get(appId)!.add(cb);
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return () => {
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const set = listeners.get(appId);
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if (!set) return;
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set.delete(cb);
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if (set.size === 0) listeners.delete(appId);
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};
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},
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emit(appId: string, event: LifecycleEvent) {
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listeners.get(appId)?.forEach((cb) => {
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try {
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cb(event);
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} catch (error) {
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console.error(`[Lifecycle] ${appId} ${event}:`, error);
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}
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});
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},
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};
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