41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
// utils.js — 工具函数
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const DEV = new URLSearchParams(location.search).has('dev');
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const sleep = ms => new Promise(r => setTimeout(r, ms));
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function dbg(msg) {
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const el = document.getElementById('dbg');
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if (el && el.style.display !== 'none') el.textContent = msg;
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}
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// TTS — 仅用于朗读文字消息内容，不用于任何 UI 反馈
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const TTS = {
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_voices: [],
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init() {
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if (!window.speechSynthesis) return;
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const load = () => { this._voices = speechSynthesis.getVoices(); };
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load();
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speechSynthesis.onvoiceschanged = load;
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},
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_pick() {
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return this._voices.find(v => v.lang.startsWith('zh') || v.name.includes('Chinese'))
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|| this._voices[0] || null;
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},
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get available() { return !!window.speechSynthesis; },
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speak(text, { rate = 0.85, volume = 0.8 } = {}) {
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return new Promise(resolve => {
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if (!window.speechSynthesis) { resolve(false); return; }
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speechSynthesis.cancel();
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const u = new SpeechSynthesisUtterance(text);
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u.lang = 'zh-CN'; u.rate = rate; u.volume = volume;
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const v = this._pick();
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if (v) u.voice = v;
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u.onend = () => resolve(true);
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u.onerror = () => resolve(false);
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speechSynthesis.speak(u);
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});
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},
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stop() { if (window.speechSynthesis) speechSynthesis.cancel(); },
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};
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