36 lines
788 B
TypeScript
36 lines
788 B
TypeScript
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export type ScreenSnapshotProvider = () => {
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rows: number;
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cols: number;
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currentRow: number;
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lines: string[];
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/** Optional origin marker (e.g. hibernate-viewport). */
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source?: string;
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};
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const providers = new Map<string, ScreenSnapshotProvider>();
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export function registerScreenSnapshotProvider(
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sessionId: string,
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provider: ScreenSnapshotProvider,
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): () => void {
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providers.set(sessionId, provider);
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return () => {
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if (providers.get(sessionId) === provider) {
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providers.delete(sessionId);
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}
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};
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}
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export function captureScreenSnapshot(sessionId: string) {
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const provider = providers.get(sessionId);
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if (!provider) {
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return {
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rows: 24,
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cols: 80,
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currentRow: 0,
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lines: [] as string[],
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};
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}
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return provider();
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}
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