Ilia Denisov
e850ecd83b
On iOS WKWebView (the Telegram Mini App), cancelling the Web Share sheet fell through to the Blob <a download> fallback. iOS ignores the download attribute, so clicking the anchor navigated the webview to the blob: URL — replacing the SPA with the raw GCG file, with no way back (force-quit only). The share path no longer falls back to a download: Web Share is available on that platform, so a cancelled or failed share is a no-op and the user can retry. The Blob download stays the desktop-only path (no Web Share).
63 lines
2.5 KiB
TypeScript
63 lines
2.5 KiB
TypeScript
import { afterEach, describe, expect, it, vi } from 'vitest';
|
|
import { pickGcgDelivery, shareOrDownloadGcg } from './share';
|
|
import type { GcgExport } from './model';
|
|
|
|
const file = {} as File;
|
|
|
|
const gcg: GcgExport = { gameId: 'g1', filename: 'game.gcg', content: '#title game' };
|
|
|
|
describe('pickGcgDelivery', () => {
|
|
it('shares when the platform can share files', () => {
|
|
expect(pickGcgDelivery({ canShare: () => true, share: async () => {} }, file)).toBe('share');
|
|
});
|
|
|
|
it('downloads when the platform cannot share files', () => {
|
|
expect(pickGcgDelivery({ canShare: () => false, share: async () => {} }, file)).toBe('download');
|
|
});
|
|
|
|
it('downloads when there is no navigator', () => {
|
|
expect(pickGcgDelivery(undefined, file)).toBe('download');
|
|
});
|
|
|
|
it('downloads when the Web Share API is incomplete', () => {
|
|
expect(pickGcgDelivery({ canShare: () => true } as never, file)).toBe('download');
|
|
});
|
|
});
|
|
|
|
describe('shareOrDownloadGcg', () => {
|
|
afterEach(() => vi.unstubAllGlobals());
|
|
|
|
function stubDownloadEnv(canShare: boolean, share: () => Promise<void>) {
|
|
const anchor = { href: '', download: '', click: vi.fn(), remove: vi.fn() };
|
|
const createElement = vi.fn(() => anchor);
|
|
vi.stubGlobal('File', class {});
|
|
vi.stubGlobal('Blob', class {});
|
|
vi.stubGlobal('navigator', { canShare: () => canShare, share });
|
|
vi.stubGlobal('document', { createElement, body: { appendChild: vi.fn() } });
|
|
vi.stubGlobal('URL', { createObjectURL: vi.fn(() => 'blob:x'), revokeObjectURL: vi.fn() });
|
|
return { anchor, createElement };
|
|
}
|
|
|
|
it('never falls back to the navigating Blob download when a share is cancelled', async () => {
|
|
// Reproduces the iOS Telegram Mini App break: Web Share is available and the user cancels it
|
|
// (AbortError). The <a download> fallback navigates the WKWebView to the blob: URL and strands
|
|
// the app, so a cancelled (or failed) share must do nothing here.
|
|
const share = vi.fn().mockRejectedValue(new DOMException('cancelled', 'AbortError'));
|
|
const { createElement } = stubDownloadEnv(true, share);
|
|
|
|
await shareOrDownloadGcg(gcg);
|
|
|
|
expect(share).toHaveBeenCalledOnce();
|
|
expect(createElement).not.toHaveBeenCalled(); // no download anchor → no webview navigation
|
|
});
|
|
|
|
it('downloads via an anchor when the platform cannot share files', async () => {
|
|
const { anchor, createElement } = stubDownloadEnv(false, vi.fn());
|
|
|
|
await shareOrDownloadGcg(gcg);
|
|
|
|
expect(createElement).toHaveBeenCalledWith('a');
|
|
expect(anchor.click).toHaveBeenCalledOnce();
|
|
});
|
|
});
|