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https://github.com/hectorqin/reader.git
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Kiro Agent
b71a2ddd4e
Prototype 12: 字幕, 音轨 and 版本 are tabs of one sheet. The subtitle tab lists 关闭, sidecars (外挂 · srt), extracted and browser-embedded streams (内嵌); 添加外挂字幕 converts an SRT/VTT/ASS file from the device to WebVTT in the browser (UTF-8, UTF-16 or GB18030) and selects it for the session; 字幕延迟 shifts sidecar cues in 0.5 s steps from their original timing; 字号 (小/标准/大) is saved per device and drives ::cue. Prototype 13: a 全屏 button enters full screen on the player, locks the phone to landscape where allowed, and floats 选集, 倍速, 适应屏幕 (cover), 字幕 and 锁定 over the picture; they fade with DPlayer's controller. 锁定 stops taps from reaching the player until unlocked. Speed presets are also in the 更多 sheet. All of this is web-only; the Android player keeps its own menus.
79 lines
4.3 KiB
TypeScript
79 lines
4.3 KiB
TypeScript
// @vitest-environment jsdom
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import { afterEach, expect, it, vi } from 'vitest';
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import { SubtitleControls } from '../src/features/media/components/subtitles.ts';
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import { subtitleFormatOf, subtitleTextToVtt, decodeSubtitleBytes } from '../src/features/media/services/subtitle-format.ts';
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import type { MediaApi } from '../src/features/media/api/media-api.ts';
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/** The 字幕与音轨 sheet's view of SubtitleControls: rows, local files, delay. */
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function video() {
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const element = document.createElement('video');
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const textTracks = Object.assign(new EventTarget(), { length: 0 });
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Object.defineProperty(element, 'textTracks', { value: textTracks });
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return element;
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}
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const api = (items: unknown[] = []) => ({ request: vi.fn(async () => ({ items })) }) as unknown as MediaApi;
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const file = (name: string, text: string) => ({ name, arrayBuffer: async () => new TextEncoder().encode(text).buffer as ArrayBuffer });
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afterEach(() => { vi.unstubAllGlobals(); });
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it('lists 关闭, server sidecars as 外挂 with their format, and extracted streams as 内嵌', async () => {
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const controls = new SubtitleControls(api([
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{ id: 'zh', label: '中文（简体）', language: 'zh', format: 'srt', source: 'external' },
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{ id: 'stream:2', label: 'English', language: 'en', format: 'vtt', source: 'embedded' },
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]), video());
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const changed = vi.fn();
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controls.addEventListener('change', changed);
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await controls.load('asset');
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expect(controls.options).toEqual([
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{ value: '', label: '关闭', note: '' },
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{ value: 'zh', label: '中文（简体）', note: '外挂 · srt' },
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{ value: 'stream:2', label: 'English', note: '内嵌' },
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]);
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expect(controls.value).toBe('');
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expect(changed).toHaveBeenCalled();
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expect(controls.canDelay).toBe(false);
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});
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it('adds a local SRT as a session-only track, selects it, and delays its cues from the file timing', async () => {
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vi.stubGlobal('URL', { createObjectURL: () => 'blob:local', revokeObjectURL: () => undefined });
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const element = video();
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const controls = new SubtitleControls(api(), element);
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await controls.load('asset');
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await controls.addLocal(file('电影.zh.srt', '1\n00:00:01,000 --> 00:00:02,000\n你好\n'));
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expect(controls.options.at(-1)).toEqual({ value: 'local:1', label: '电影.zh', note: '本机 · srt' });
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expect(controls.value).toBe('local:1');
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expect(controls.canDelay).toBe(true);
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// Cues are shifted against their original timing, so repeated changes never drift.
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const cue = { startTime: 1, endTime: 2 } as TextTrackCue;
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const track = element.querySelector('track')!;
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Object.defineProperty(track, 'track', { value: { mode: 'showing', cues: [cue] } });
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controls.setDelay(0.5); controls.setDelay(1);
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expect([cue.startTime, cue.endTime]).toEqual([2, 3]);
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controls.setDelay(-1.5);
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expect([cue.startTime, cue.endTime]).toEqual([0, 0.5]);
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expect(controls.delay).toBe(-1.5);
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// A new video starts from the file timing again, with no local files left over.
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controls.clear();
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expect(controls.delay).toBe(0);
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expect(controls.options).toEqual([{ value: '', label: '关闭', note: '' }]);
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});
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it('rejects a file that is not a subtitle, without changing the selection', async () => {
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const controls = new SubtitleControls(api(), video());
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await controls.load('asset');
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await expect(controls.addLocal(file('notes.txt', 'hello'))).rejects.toThrow('SRT、VTT 或 ASS');
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await expect(controls.addLocal(file('empty.srt', 'no cues here'))).rejects.toThrow();
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expect(controls.value).toBe('');
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});
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it('converts SRT and ASS to text-only WebVTT, and reads GB18030 files', () => {
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expect(subtitleFormatOf('a.Chinese.ASS')).toBe('ass');
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expect(subtitleFormatOf('a.txt')).toBeNull();
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expect(subtitleTextToVtt('1\r\n00:00:01,000 --> 00:00:02,500\r\n<i>你好</i> & 世界\r\n', 'srt'))
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.toBe('WEBVTT\n\n1\n00:00:01.000 --> 00:00:02.500\n你好 & 世界\n');
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const ass = '[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n'
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+ 'Dialogue: 0,0:00:01.50,0:00:03.00,Default,,0,0,0,,{\\b1}第一,行\\N下一行\n'
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+ 'Dialogue: 0,0:00:04.00,0:00:05.00,Default,,0,0,0,,{\\p1}m 0 0 l 1 1\n';
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expect(subtitleTextToVtt(ass, 'ass')).toBe('WEBVTT\n\n1\n00:00:01.500 --> 00:00:03.000\n第一,行\n下一行\n');
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expect(decodeSubtitleBytes(new Uint8Array([0xc4, 0xe3, 0xba, 0xc3]))).toBe('你好');
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});
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