Reads selected text using the Gemini 2.5 TTS model, then automatically downloads the audio file.
// ==UserScript==
// @name Gemini TTS Reader w/Console
// @namespace http://tampermonkey.net/
// @version 1.9
// @description Reads selected text using the Gemini 2.5 TTS model, then automatically downloads the audio file.
// @author Gemini&Marco
// @match *://*/*
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_registerMenuCommand
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// @run-at document-end
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// --- Styles ---
GM_addStyle(`
#gemini-config-modal {
position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
background: #ffffff; border-radius: 14px; box-shadow: 0 15px 50px rgba(0,0,0,0.3);
padding: 24px; z-index: 1000001; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
width: 480px; display: none; color: #1f2937; line-height: 1.5;
}
#gemini-config-overlay {
position: fixed; top: 0; left: 0; width: 100%; height: 100%;
background: rgba(0,0,0,0.4); backdrop-filter: blur(2px); z-index: 1000000; display: none;
}
.gemini-title { margin: 0 0 20px 0; font-size: 20px; font-weight: 700; color: #111827; border-bottom: 1px solid #eee; padding-bottom: 10px; }
.gemini-section { margin-bottom: 16px; }
.gemini-label { font-size: 13px; font-weight: 600; color: #4b5563; display: block; margin-bottom: 6px; }
.gemini-input {
width: 100%; padding: 10px; border: 1px solid #d1d5db; border-radius: 8px;
box-sizing: border-box; font-size: 14px; transition: border 0.2s;
}
.gemini-input:focus { outline: none; border-color: #4f46e5; }
.gemini-textarea { height: 100px; font-family: ui-monospace, monospace; resize: vertical; }
.gemini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.gemini-footer { text-align: right; margin-top: 25px; padding-top: 15px; border-top: 1px solid #eee; }
.gemini-btn { padding: 10px 20px; border-radius: 8px; border: none; cursor: pointer; font-weight: 600; font-size: 14px; }
.gemini-btn-primary { background: #4f46e5; color: white; }
.gemini-btn-secondary { background: #f3f4f6; color: #4b5563; margin-right: 10px; }
`);
// --- Configuration ---
const CONFIG = {
model: 'gemini-2.5-flash-preview-tts',
sampleRate: 24000,
voices: ['Puck', 'Charon', 'Kore', 'Fenrir', 'Zephyr'],
defaultHotkey: 'alt+t'
};
const State = {
get apiKeys() { return GM_getValue('GEMINI_API_KEYS', []); },
set apiKeys(v) { GM_setValue('GEMINI_API_KEYS', v); },
get voice() { return GM_getValue('GEMINI_VOICE', 'Kore'); },
set voice(v) { GM_setValue('GEMINI_VOICE', v); },
get hotkey() { return GM_getValue('GEMINI_HOTKEY', CONFIG.defaultHotkey); },
set hotkey(v) { GM_setValue('GEMINI_HOTKEY', v.toLowerCase().replace(/\s/g, '')); },
get systemPrompt() { return GM_getValue('GEMINI_SYSTEM_PROMPT', ''); },
set systemPrompt(v) { GM_setValue('GEMINI_SYSTEM_PROMPT', v.trim()); }
};
// --- UI Logic ---
const overlay = document.createElement('div');
overlay.id = 'gemini-config-overlay';
const modal = document.createElement('div');
modal.id = 'gemini-config-modal';
document.body.appendChild(overlay);
document.body.appendChild(modal);
const renderModal = () => {
const voiceOptions = CONFIG.voices.map(v => `<option value="${v}" ${v === State.voice ? 'selected' : ''}>${v}</option>`).join('');
modal.innerHTML = `
<div class="gemini-title">Gemini TTS Configuration</div>
<div class="gemini-section">
<label class="gemini-label">API Keys (One per line)</label>
<textarea id="ui-keys" class="gemini-input gemini-textarea" placeholder="Enter API keys...">${State.apiKeys.join('\n')}</textarea>
</div>
<div class="gemini-section">
<label class="gemini-label">System Prompt</label>
<input id="ui-prompt" type="text" class="gemini-input" value="${State.systemPrompt}" placeholder="e.g. British accent...">
</div>
<div class="gemini-grid">
<div class="gemini-section">
<label class="gemini-label">Voice</label>
<select id="ui-voice" class="gemini-input">${voiceOptions}</select>
</div>
<div class="gemini-section">
<label class="gemini-label">Hotkey</label>
<input id="ui-hotkey" type="text" class="gemini-input" value="${State.hotkey}">
</div>
</div>
<div class="gemini-footer">
<button id="ui-cancel" class="gemini-btn gemini-btn-secondary">Cancel</button>
<button id="ui-save" class="gemini-btn gemini-btn-primary">Save All Settings</button>
</div>
`;
document.getElementById('ui-cancel').onclick = closeModal;
document.getElementById('ui-save').onclick = () => {
State.apiKeys = document.getElementById('ui-keys').value.split('\n').map(k => k.trim()).filter(k => k.length > 5);
State.systemPrompt = document.getElementById('ui-prompt').value;
State.voice = document.getElementById('ui-voice').value;
State.hotkey = document.getElementById('ui-hotkey').value;
showToast("Settings Saved!");
closeModal();
};
};
const openModal = () => { renderModal(); overlay.style.display = 'block'; modal.style.display = 'block'; };
const closeModal = () => { overlay.style.display = 'none'; modal.style.display = 'none'; };
overlay.onclick = closeModal;
GM_registerMenuCommand("⚙️ Gemini TTS Settings", openModal);
// --- Main Logic ---
document.addEventListener('keydown', (e) => {
if (!matchesHotkey(e, State.hotkey)) return;
const text = window.getSelection().toString().trim();
if (!text) return;
if (State.apiKeys.length === 0) { openModal(); return; }
runTTS(text);
});
function matchesHotkey(event, hotkeyString) {
const parts = hotkeyString.split('+');
const mainKey = parts.pop();
const mods = { alt: parts.includes('alt'), ctrl: parts.includes('ctrl'), meta: parts.includes('meta') || parts.includes('cmd'), shift: parts.includes('shift') };
return event.key.toLowerCase() === mainKey && event.altKey === mods.alt && event.ctrlKey === mods.ctrl && event.metaKey === mods.meta && event.shiftKey === mods.shift;
}
async function runTTS(text) {
const toastId = showToast('Generating...', false, 0);
const keys = State.apiKeys;
for (let i = 0; i < keys.length; i++) {
updateToast(toastId, `Trying Key ${i + 1}/${keys.length}...`, 0);
try {
await generateAndPlay(text, keys[i], State.voice, State.systemPrompt);
updateToast(toastId, 'Success & Downloading!', 2000);
return;
} catch (e) {
const isRetryable = e.message.includes('403') || e.message.includes('429');
if (!isRetryable || i === keys.length - 1) {
updateToast(toastId, `Error: ${e.message}`, 5000, true);
return;
}
}
}
}
async function generateAndPlay(text, apiKey, voice, systemPrompt) {
let finalText = systemPrompt ? `${systemPrompt}: ${text}` : text;
const payload = {
contents: [{ parts: [{ text: finalText }] }],
generationConfig: { responseModalities: ["AUDIO"], speechConfig: { voiceConfig: { prebuiltVoiceConfig: { voiceName: voice } } } }
};
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: "POST",
url: `https://generativelanguage.googleapis.com/v1beta/models/${CONFIG.model}:generateContent?key=${apiKey}`,
headers: { "Content-Type": "application/json" },
data: JSON.stringify(payload),
onload: function(response) {
if (response.status !== 200) return reject(new Error(`API ${response.status}`));
try {
const data = JSON.parse(response.responseText);
const base64Audio = data.candidates?.[0]?.content?.parts?.[0]?.inlineData?.data;
if (!base64Audio) throw new Error("No audio data");
// --- 下载与播放逻辑回归 ---
processAudio(base64Audio);
resolve();
} catch (err) { reject(err); }
},
onerror: () => reject(new Error("Network Error"))
});
});
}
function processAudio(base64) {
const binaryString = atob(base64);
const bytes = new Uint8Array(binaryString.length);
for (let i = 0; i < binaryString.length; i++) bytes[i] = binaryString.charCodeAt(i);
const wavBlob = createWavBlob(bytes, CONFIG.sampleRate);
const url = URL.createObjectURL(wavBlob);
// 1. 播放
const audio = new Audio(url);
audio.play();
// 2. 自动下载 (回归逻辑)
const a = document.createElement('a');
a.href = url;
a.download = `gemini-tts-${Date.now()}.wav`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
// 延时释放内存
setTimeout(() => URL.revokeObjectURL(url), 10000);
}
function createWavBlob(pcmData, sampleRate) {
const header = new ArrayBuffer(44);
const view = new DataView(header);
const writeStr = (off, s) => { for (let i = 0; i < s.length; i++) view.setUint8(off + i, s.charCodeAt(i)); };
writeStr(0, 'RIFF'); view.setUint32(4, 36 + pcmData.length, true);
writeStr(8, 'WAVEfmt '); view.setUint32(16, 16, true);
view.setUint16(20, 1, true); view.setUint16(22, 1, true);
view.setUint32(24, sampleRate, true); view.setUint32(28, sampleRate * 2, true);
view.setUint16(32, 2, true); view.setUint16(34, 16, true);
writeStr(36, 'data'); view.setUint32(40, pcmData.length, true);
return new Blob([header, pcmData], { type: 'audio/wav' });
}
// --- Toast Notification ---
function showToast(text, isError = false, duration = 3000) {
const id = `toast-${Date.now()}`;
const div = document.createElement('div');
div.id = id; div.textContent = text;
Object.assign(div.style, {
position: 'fixed', bottom: '20px', right: '20px', padding: '12px 24px',
backgroundColor: isError ? '#ef4444' : '#111827', color: 'white',
borderRadius: '10px', zIndex: '1000002', transition: 'all 0.4s ease',
opacity: '0', transform: 'translateY(20px)', fontFamily: 'sans-serif'
});
document.body.appendChild(div);
requestAnimationFrame(() => { div.style.opacity = '1'; div.style.transform = 'translateY(0)'; });
if (duration > 0) setTimeout(() => removeToast(div), duration);
return id;
}
function updateToast(id, text, duration = 3000, isError = false) {
const div = document.getElementById(id.startsWith('toast-') ? id : `toast-${id}`);
if (div) {
div.textContent = text;
if (isError) div.style.backgroundColor = '#ef4444';
if (duration > 0) setTimeout(() => removeToast(div), duration);
}
}
function removeToast(div) {
if (!div) return;
div.style.opacity = '0';
setTimeout(() => div.remove(), 500);
}
})();