Carlos Florêncio
40 lines
1.4 KiB
TypeScript
40 lines
1.4 KiB
TypeScript
import { createTauriEventTransport } from "@/lib/desktop/tauri-event-transport";
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import type { DesktopDownloadFeedback } from "@/lib/desktop/protocol";
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export const MAX_NATIVE_BLOB_DOWNLOAD_AGE_MS = 30 * 60 * 1_000;
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const nativeDownloadTransport = createTauriEventTransport();
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const pendingNativeBlobDownloads = new Map<string, number>();
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export function retainNativeBlobDownload(url: string): boolean {
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if (typeof window === "undefined" || !nativeDownloadTransport.isAvailable()) return false;
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armNativeBlobDownloadCleanup(url);
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return true;
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}
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export function completeNativeBlobDownload(feedback: DesktopDownloadFeedback): void {
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if (feedback.status === "selecting" || feedback.status === "started") {
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if (pendingNativeBlobDownloads.has(feedback.url)) armNativeBlobDownloadCleanup(feedback.url);
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return;
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}
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revokeNativeBlobDownload(feedback.url);
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}
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export function revokeNativeBlobDownload(url: string): void {
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const timeout = pendingNativeBlobDownloads.get(url);
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if (timeout === undefined) return;
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window.clearTimeout(timeout);
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pendingNativeBlobDownloads.delete(url);
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URL.revokeObjectURL(url);
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}
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function armNativeBlobDownloadCleanup(url: string): void {
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const previous = pendingNativeBlobDownloads.get(url);
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if (previous !== undefined) window.clearTimeout(previous);
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const timeout = window.setTimeout(
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() => revokeNativeBlobDownload(url),
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MAX_NATIVE_BLOB_DOWNLOAD_AGE_MS,
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);
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pendingNativeBlobDownloads.set(url, timeout);
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}
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