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<!DOCTYPE html>
<html>
<head prefix="og: http://ogp.me/ns">
<meta charset=utf-8 />
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Cache-Control" content="no-cache">
<title>Speech to Text Webcam Overlay</title>
<meta name="description" content="Web Speech API で音声認識した結果の字幕をWebカメラ映像に重ねて表示するWebページです。ブラウザを画面収録して，ビデオ会議や生配信等で使用できます。">
<meta property="og:title" content="Speech to Text Webcam Overlay" />
<meta property="og:description" content="Web Speech API で音声認識した結果の字幕をWebカメラ映像に重ねて表示するWebページです。ブラウザを画面収録して，ビデオ会議や生配信等で使用できます。" />
<meta property="og:url" content="https://1heisuzuki.github.io/speech-to-text-webcam-overlay/">
<meta property="og:image" content="https://1heisuzuki.github.io/speech-to-text-webcam-overlay/thumbnail.jpg">
<meta name="twitter:card" content="summary">
<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@500&display=swap" rel="stylesheet">
<link rel="stylesheet" href="style.css?ver=202005300200" type="text/css" media="screen" charset="utf-8" />
<script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
<script src="kuromoji/build/kuromoji.js"></script>
</head>
<body>
<div class="main">
<div id="status" class="error">起動中...</div>
<div id="status_kuromoji_loading" class="hidden"></div>
<div id="video_wrapper" class="video_wrapper">
<video id="result_video" class="video_area" autoplay></video>
<div id="video_bg" class="video_bg hidden"></div>
<div id="text_overlay_wrapper" class="text_overlay_wrapper full">
<div id="text_bg" class="text_bg"></div>
<div id="result_text" class="text_area">音声認識が始まるとここに文字が表示されます。マイクとカメラを有効にしてください。</div>
</div>
<!-- <input type="button" id="FullScreenBtn" class="FullScreenBtn" value="全画面"> -->
<img src="fullscreen.svg" id="FullScreenBtn" class="FullScreenBtn" width="18" height="18" style="display:block">
</div>
<div class="help_text log_link_description"><a href="#log">認識結果のログ表示/ダウンロード</a></div>
<div id="help_on_error" class="help_on_error">
カメラやマイクが機能しないとき → ページの再読み込みや，ブラウザの設定を確認してください: <a
href="https://support.google.com/chrome/answer/2693767?co=GENIE.Platform%3DDesktop&hl=ja&oco=1"
target="_blank">Chrome ヘルプ</a>
</div>
<div class="controls_wrapper control_wrapper_row">
<div class="col-12 control_wrapper_col">
<div class="control_header">文字の調整</div>
<div class="control_wrapper" style="padding-top: 0.8rem;">
<div class="control_form control_form_slider col-3">
<label for="slider_font_size" class="control_label">大きさ</label>
<input id="slider_font_size" type="range" class="control_input" value="68" min="1" max="150" step="1"
oninput="document.getElementById('result_text').style.fontSize=this.value+'px',document.getElementById('value_font_size').innerHTML=this.value">
<div class="control_value">
<span id="value_font_size">68</span><span class="value_unit">px</span>
</div>
</div>
<div class="control_form control_form_slider col-3">
<label for="slider_opacity" class="control_label">透明度</label>
<input id="slider_opacity" type="range" class="control_input" value="0.9" min="0" max="1" step="0.05"
oninput="document.getElementById('result_text').style.opacity=this.value,document.getElementById('value_opacity').innerHTML=this.value">
<div class="control_value">
<span id="value_opacity">0.9</span>
</div>
</div>
<div class="control_form control_form_radio col-4">
<label for="selector_position" class="control_label">位置</label>
<div class="control_input">
<label for="selector_position_full">
<input id="selector_position_full" type="radio" name='selector_position'
oninput="document.getElementById('text_overlay_wrapper').className='text_overlay_wrapper full'" checked> 全体
</label>
<label for="selector_position_left">
<input id="selector_position_left" type="radio" name='selector_position'
oninput="document.getElementById('text_overlay_wrapper').className='text_overlay_wrapper split left'"> 左
</label>
<label for="selector_position_right">
<input id="selector_position_right" type="radio" name='selector_position'
oninput="document.getElementById('text_overlay_wrapper').className='text_overlay_wrapper split right'"> 右
</label>
<label for="selector_position_top">
<input id="selector_position_top" type="radio" name='selector_position'
oninput="document.getElementById('text_overlay_wrapper').className='text_overlay_wrapper split top'"> 上
</label>
<label for="selector_position_bottom">
<input id="selector_position_bottom" type="radio" name='selector_position'
oninput="document.getElementById('text_overlay_wrapper').className='text_overlay_wrapper split bottom'"> 下
</label>
</div>
</div>
<div class="control_form control_form_slider col-3">
<label for="slider_text_shadow_stroke" class="control_label">影</label>
<input id="slider_text_shadow_stroke" type="range" class="control_input" value="5" min="0" max="20" step="0.1"
oninput="document.getElementById('result_text').style.textShadow='0 0 '+this.value+'px '+document.getElementById('selector_text_shadow_color').value,document.getElementById('value_text_shadow_stroke').innerHTML=this.value">
<div class="control_value">
<span id="value_text_shadow_stroke">5</span><span class="value_unit">px</span>
</div>
</div>
<div class="control_form control_form_slider col-3">
<label for="slider_text_stroke" class="control_label">フチ</label>
<input id="slider_text_stroke" type="range" class="control_input" value="0.3" min="0" max="5" step="0.01"
oninput="document.getElementById('result_text').style.webkitTextStrokeWidth=this.value+'px',document.getElementById('value_text_stroke').innerHTML=this.value">
<div class="control_value">
<span id="value_text_stroke">0.3</span><span class="value_unit">px</span>
</div>
</div>
<div class="control_form control_form_slider col-3">
<label for="slider_line_height" class="control_label">行間</label>
<input id="slider_line_height" type="range" class="control_input" value="163" min="100" max="300" step="1"
oninput="document.getElementById('result_text').style.lineHeight=this.value+'%',document.getElementById('value_line_height').innerHTML=this.value">
<div class="control_value">
<span id="value_line_height">163</span><span class="value_unit">%</span>
</div>
</div>
<div class="control_form control_form_slider col-3">
<label for="slider_letter_spacing" class="control_label">字間</label>
<input id="slider_letter_spacing" type="range" class="control_input" value="0.05" min="0" max="1" step="0.01"
oninput="document.getElementById('result_text').style.letterSpacing=this.value+'em',document.getElementById('value_letter_spacing').innerHTML=this.value">
<div class="control_value">
<span id="value_letter_spacing">0.05</span>
</div>
</div>
<div class="control_form control_form_color col-2">
<label for="selector_text_color" class="control_label">文字色</label>
<input id="selector_text_color" type="color" class="control_input" value="#ffffff"
oninput="document.getElementById('result_text').style.color=this.value">
</div>
<div class="control_form control_form_color col-2">
<label for="selector_text_shadow_color" class="control_label">影色</label>
<input id="selector_text_shadow_color" type="color" class="control_input" value="#000000"
oninput="document.getElementById('result_text').style.textShadow='0 0 '+document.getElementById('slider_text_shadow_stroke').value+'px '+this.value">
</div>
<div class="control_form control_form_color col-2">
<label for="selector_text_stroke_color" class="control_label">フチ色</label>
<input id="selector_text_stroke_color" type="color" class="control_input" value="#000000"
oninput="document.getElementById('result_text').style.webkitTextStrokeColor=this.value">
</div>
<div class="control_form control_form_selector col-3">
<label for="select_font" class="control_label">フォント </label>
<select id="select_font" onchange="document.getElementById('result_text').style.fontFamily=fonts_custom[select_font.selectedIndex][1]" style="width: 94%; height: 100%;"></select>
</div>
<div class="control_form control_form_selector col-2">
<label for="select_autoclear_text" class="control_label">自動消去 </label>
<select id="select_autoclear_text" onchange="updateTextClearSecond()">
<option value="0">なし</option>
<option value="5">5秒</option>
<option value="10">10秒</option>
<option value="20">20秒</option>
<option value="30" selected>30秒</option>
<option value="45">45秒</option>
<option value="60">1分</option>
</select>
</div>
</div>
</div>
<div class="col-6 control_wrapper_col">
<div class="control_header">文字背景の塗り調整</div>
<div class="control_wrapper">
<div class="control_form control_form_slider col-6">
<label for="slider_text_bg_opacity" class="control_label">濃さ</label>
<input id="slider_text_bg_opacity" type="range" class="control_input" value="0.3" min="0" max="1" step="0.05"
oninput="document.getElementById('text_bg').style.opacity=this.value,document.getElementById('value_text_bg_opacity').innerHTML=this.value">
<div class="control_value">
<span id="value_text_bg_opacity">0.3</span>
</div>
</div>
<div class="control_form control_form_color col-6">
<label for="selector_text_bg_color" class="control_label">色</label>
<input id="selector_text_bg_color" type="color" class="control_input" value="#000000"
oninput="document.getElementById('text_bg').style.backgroundColor=this.value">
</div>
</div>
</div>
<div class="col-6 control_wrapper_col">
<div class="control_header">単色背景の調整</div>
<div class="control_wrapper">
<div class="control_button_wrapper col-6">
<input type="button" id="video_bg_toggle" class="" value="単色背景 表示/非表示"
onclick="toggleClass('video_bg','hidden')">
</div>
<div class="control_form control_form_color col-5">
<label for="selector_video_bg" class="control_label">背景色</label>
<input id="selector_video_bg" type="color" class="control_input" value="#00ff00"
oninput="document.getElementById('video_bg').style.backgroundColor=this.value">
</div>
</div>
</div>
<div class="control_button_wrapper">
<input type="button" value="カメラ 表示/非表示"
onclick="toggleClass('result_video','hidden')">
<input type="button" value="カメラ 左右反転"
onclick="toggleClass('result_video','mirror')">
<input type="button" value="文字 表示/非表示"
onclick="toggleClass('text_overlay_wrapper','hidden')">
<input type="button" value="文字 左右反転"
onclick="toggleClass('text_overlay_wrapper','mirror')">
<input type="button" value="全画面化ボタン 表示/非表示"
onclick="toggleClass('FullScreenBtn','hidden')">
<input type="button" value="設定の初期化"
onclick="deleteConfig()">
</div>
<div class="control_selector_wrapper">
カメラ：
<select id="select_camera" onchange="setupCamera()"></select>
</div>
<div class="control_selector_wrapper">
音声認識：
<select id="select_language" class="selector" onchange="updateCountry()"></select>
<select id="select_dialect" class="selector" onchange="updateLanguage()"></select>
<span id="checkbox_hiragana_wrapper" class="selector">
ひらがな<a href="https://github.com/1heisuzuki/speech-to-text-webcam-overlay#ひらがなで表示したい" target="_blank">[?]</a>: <input type="checkbox" id="checkbox_hiragana" name="checkbox_hiragana" value="hiragana" oninput="initKuromoji(this)">
</span>
翻訳：
<div id="google_translate_element" class="select_translation selector"></div>
</div>
<div class="control_selector_wrapper">
音声認識の結果をslackに投稿する： <input type="checkbox" id="checkbox_slack" name="checkbox_slack" value="slack"><br/>
webhook_URL: <input type="text" id="textbox_slack_url">
channel: <input type="text" id="textbox_slack_channel">
表示名: <input type="text" id="textbox_slack_user_name">
</div>
</div>
<div id="log" class="log_wrapper">
<div class="control_header">認識結果のログ</div>
<div class="log_control_wrapper help_text">
*認識結果が確定したタイミングで反映されます。テキストの編集・コピーも可能です。<br/>
**認識中にEnterキーを押すと，認識を止めて文を区切ることができます。日本語の場合は文末に句点が付与されます。</span>
<div class="log_input_wrapper">
時刻の記録: <input type="checkbox" id="checkbox_timestamp" name="checkbox_timestamp" value="timestamp">
</div>
</div>
<textarea id="result_log" class="result_log_area" onchange="textAreaHeightSet(this)"></textarea><br/>
<div style="text-align: center; opacity: 0.6;">
<input type="button" value="ログをダウンロード" onclick="downloadLogFile(this)">
</div>
</div>
<div class="help_wrapper">
<div class="help_text">
よくある質問・ソースコード: <a href="https://github.com/1heisuzuki/speech-to-text-webcam-overlay" target="_blank">GitHub</a><br />
音声認識は <a href="https://developer.mozilla.org/ja/docs/Web/API/Web_Speech_API" target="_blank">Web Speech
API</a> を利用しています。<br />
カメラやマイクが機能しないとき → ページの再読み込みや，ブラウザの設定を確認してください: <a
href="https://support.google.com/chrome/answer/2693767?co=GENIE.Platform%3DDesktop&hl=ja&oco=1"
target="_blank">Chrome ヘルプ</a><br />
「ログをダウンロード」でダウンロードされるファイルは，アクセスしているユーザーのブラウザで生成されています。
</div>
</div>
</div>
</body>
<!-- Chrome で MediaDevices.enumerateDevices() を動かすためのpolyfill -->
<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
<script>
// ブラウザ判定
// 参考: https://qiita.com/sakuraya/items/33f93e19438d0694a91d
var userAgent = window.navigator.userAgent.toLowerCase();
var isChrome = 0;
if (userAgent.indexOf('msie') != -1 || userAgent.indexOf('trident') != -1) {
// IE
} else if (userAgent.indexOf('edge') != -1) {
// Edge
} else if (userAgent.indexOf('chrome') != -1) {
// Chrome
isChrome = 1;
} else if (userAgent.indexOf('safari') != -1) {
// Safari
} else if (userAgent.indexOf('firefox') != -1) {
// Firefox
} else if (userAgent.indexOf('opera') != -1) {
// Opera
} else {
// その他
}
if (!isChrome) {
alert('Google Chromeでアクセスしてください')
document.getElementById('status').innerHTML = "Google Chromeでアクセスしてください";
document.getElementById('status').className = "error";
exit;
}
// Webカメラ
// 参考: https://qiita.com/qiita_mona/items/e58943cf74c40678050a
// getUserMedia が使えないとき
if (typeof navigator.mediaDevices.getUserMedia !== 'function') {
const err = new Error('getUserMedia()が使用できません');
alert(`${err.name} ${err.message}`);
throw err;
}
const $video = document.getElementById('result_video'); // 映像表示エリア
// select要素のoptionをクリアする
function clearSelect(select) {
while(select.firstChild) {
select.removeChild(select.firstChild);
}
}
// select要素のoptionに、option.valueがvalueな項目があれば選択する
// 戻り値は、option中に該当項目があればtrue
function selectValueIfExists(select, value) {
if (value === null || value === undefined) return;
var result = false;
select.childNodes.forEach(n => {
if (n.value === value) {
select.value = value;
result = true;
}
})
return result;
}
// カメラを列挙して select_camera オブジェクトの option に設定
// 参考：https://github.com/webrtc/samples/blob/gh-pages/src/content/devices/input-output/js/main.js
// deviceInfos : MediaDeviceInfo[]
// 引数は MediaDevices.enumerateDevices() の戻り値の Promise の中身という前提
// 参考：https://developer.mozilla.org/ja/docs/Web/API/MediaDevices/enumerateDevices
function updateCameraSelector(deviceInfos) {
// 選んだ項目を最後で再度選ぶために記憶
const selectedDevice = select_camera.value;
// 既存の選択肢をクリア
clearSelect(select_camera);
// メディアデバイス一覧のうち、videoinputをoption要素としてselectに追加
for (let i=0 ; i !== deviceInfos.length ; ++i) {
const deviceInfo = deviceInfos[i];
if (deviceInfo.kind === 'videoinput') {
const option = document.createElement('option');
option.value = deviceInfo.deviceId;
option.text = deviceInfos[i].label || `camera ${select_camera.length + 1}`;
select_camera.appendChild(option);
}
}
// 元々選んでいた項目があれば、その項目を再度選択
selectValueIfExists(select_camera, selectedDevice);
}
// video要素にstreamを設定し、メディア（カメラ、マイク）一覧を返す
// 参考：https://github.com/webrtc/samples/blob/gh-pages/src/content/devices/input-output/js/main.js
function handleStream(stream) {
window.stream = stream;
$video.srcObject = stream;
return navigator.mediaDevices.enumerateDevices();
}
// 設定に基づきカメラ映像を表示
// isInit : カメラ選択肢がない場合だけtrue、他（選択肢切替時や保存された設定からの復元時）は不要
// 参考：https://github.com/webrtc/samples/blob/gh-pages/src/content/devices/input-output/js/main.js
function setupCamera(isInit) {
if (window.stream) {
window.stream.getTracks().forEach(track => {
track.stop();
});
}
const videoSource = select_camera.value;
const constraints = {
video: {
aspectRatio: { ideal: 1.7777777778 }
},
audio: false
};
if (isInit !== true) {
constraints.video["deviceId"] = videoSource ? {exact: videoSource} : undefined;
}
navigator.mediaDevices.getUserMedia(constraints)
.then(handleStream)
.then(updateCameraSelector)
.catch(onCameraError);
}
// カメラ初回起動
function initCamera() {
const conf = JSON.parse(localStorage.speech_to_text_config || '{}');
var camera_selected = false;
if (typeof conf.select_camera !== 'undefined') {
if (selectValueIfExists(select_camera, conf.select_camera)) {
// カメラ選択肢が保存され、selectのoption中にあれば選択されたカメラを起動
camera_selected = true;
setupCamera();
}
}
if (!camera_selected) {
// カメラ設定がされていなければ、デフォルトカメラで開始
setupCamera(true); // 引数はデフォルトカメラ選択の意
}
}
function onCameraError(err) {
console.log(`カメラ関連の問題：${err.name} / ${err.message}`)
alert(`カメラ映像を読み込めませんでした。ブラウザのアクセス制限など，設定を確認してください`);
document.getElementById('help_on_error').style.display='block';
}
// カメラの選択肢を生成
navigator.mediaDevices.enumerateDevices()
.then(updateCameraSelector)
.then(initCamera)
.catch(onCameraError);
// 音声認識
// 参考: https://jellyware.jp/kurage/iot/webspeechapi.html
var flag_speech = 0;
var recognition;
var lang = 'ja-JP';
var textUpdateTimeoutID = 0;
var textUpdateTimeoutSecond = 30; // 音声認識結果が更新されない場合にクリアするまでの秒数（0以下の場合は自動クリアしない）
function vr_function() {
window.SpeechRecognition = window.SpeechRecognition || webkitSpeechRecognition;
recognition = new webkitSpeechRecognition();
recognition.lang = lang;
recognition.interimResults = true;
recognition.continuous = true;
recognition.onsoundstart = function () {
document.getElementById('status').innerHTML = "認識中...";
document.getElementById('status').className = "processing";
};
recognition.onnomatch = function () {
document.getElementById('status').innerHTML = "音声を認識できませんでした";
document.getElementById('status').className = "error";
};
recognition.onerror = function () {
document.getElementById('status').innerHTML = "エラー";
document.getElementById('status').className = "error";
if (flag_speech == 0)
vr_function();
};
recognition.onsoundend = function () {
document.getElementById('status').innerHTML = "停止中";
document.getElementById('status').className = "error";
vr_function();
};
recognition.onresult = function (event) {
var results = event.results;
for (var i = event.resultIndex; i < results.length; i++) {
if (results[i].isFinal) {
var result_transcript = results[i][0].transcript
if (lang == 'ja-JP') {
result_transcript += '。';
}
if(document.getElementById('checkbox_hiragana').checked && lang == 'ja-JP'){
document.getElementById('result_text').innerHTML = resultToHiragana(result_transcript);
}else{
document.getElementById('result_text').innerHTML = result_transcript;
}
setTimeoutForClearText();
if(document.getElementById('checkbox_timestamp').checked){
// タイムスタンプ機能
var now = new window.Date();
var Year = now.getFullYear();
var Month = (("0"+(now.getMonth()+1)).slice(-2));
var Date = ("0"+now.getDate()).slice(-2);
var Hour = ("0"+now.getHours()).slice(-2);
var Min = ("0"+now.getMinutes()).slice(-2);
var Sec = ("0"+now.getSeconds()).slice(-2);
var timestamp = Year + '-' + Month + '-' + Date + ' ' + Hour + ':' + Min + ':' + Sec + '	'
result_transcript = timestamp + result_transcript
}
document.getElementById('result_log').insertAdjacentHTML('beforeend', result_transcript+'\n');
textAreaHeightSet(document.getElementById('result_log'));
sendTextToSlack(result_transcript);
vr_function();
flag_speech = 0;
} else {
var result_transcript = results[i][0].transcript;
if(document.getElementById('checkbox_hiragana').checked && lang == 'ja-JP'){
document.getElementById('result_text').innerHTML = resultToHiragana(result_transcript);
}else{
document.getElementById('result_text').innerHTML = result_transcript;
}
flag_speech = 1;
}
}
}
flag_speech = 0;
document.getElementById('status').innerHTML = "待機中";
document.getElementById('status').className = "ready";
recognition.start();
}
function updateTextClearSecond() {
const sec = Number(document.getElementById('select_autoclear_text').value);
if ((!isNaN(sec)) && isFinite(sec) && (sec >= 0)) {
textUpdateTimeoutSecond = sec;
}
}
function clearTimeoutForClearText() {
if (textUpdateTimeoutID !== 0) {
clearTimeout(textUpdateTimeoutID);
textUpdateTimeoutID = 0;
}
}
// 変数 textUpdateTimeoutSecond に基づいてタイマーを設定する。
// タイマーの時間切れで、字幕を自動的に消去する。
// 変数の値がゼロ以下の場合はタイマーは設定されない。
// タイマーが既に動いている場合、処理タイミングは後からのもので上書きする。
function setTimeoutForClearText() {
if (textUpdateTimeoutSecond <= 0) return;
clearTimeoutForClearText();
textUpdateTimeoutID = setTimeout(
() => {
document.getElementById('result_text').innerHTML = "";
textUpdateTimeoutID = 0;
},
textUpdateTimeoutSecond * 1000);
}
// 認識結果のログのtextareaを自動変形する
// 参考: https://webparts.cman.jp/input/textarea/
function textAreaHeightSet(argObj){
// 一旦テキストエリアを小さくしてスクロールバー（縦の長さを取得）
argObj.style.height = "10px";
var wSclollHeight = parseInt(argObj.scrollHeight);
// 1行の長さを取得する
var wLineH = parseInt(argObj.style.lineHeight.replace(/px/, ''));
// 最低2行の表示エリアにする
if(wSclollHeight < (wLineH * 2)){wSclollHeight=(wLineH * 2);}
// テキストエリアの高さを設定する
argObj.style.height = wSclollHeight + "px";
}
// 認識結果をSlackに送信する
function sendTextToSlack(result_transcript){
console.log(result_transcript);
console.log(document.getElementById('checkbox_slack').checked);
if(document.getElementById('checkbox_slack').checked && document.getElementById('textbox_slack_channel').value != ''){
const endpoint = document.getElementById('textbox_slack_url').value;
console.log(endpoint);
let text = result_transcript;
if(document.getElementById('textbox_slack_user_name').value != ''){
text = `${document.getElementById('textbox_slack_user_name').value}: 「${text}」`;
}
const data = {
text: text,
as_user: true,
channel: document.getElementById('textbox_slack_channel').value,
}
const req = new XMLHttpRequest();
req.open('POST', endpoint, false);
req.setRequestHeader('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
req.send(`payload=${JSON.stringify(data)}`);
}
}
// 認識を手動で止める（文を区切る）
document.addEventListener('keydown',
event => {
if (event.key === 'Enter') {
if(flag_speech == 1){
recognition.stop();
}
}
});
// 認識結果のログをダウンロードする
// 参考: https://qiita.com/kerupani129/items/99fd7a768538fcd33420
function downloadLogFile(){
const a = document.createElement('a');
a.href = 'data:text/plain,' + encodeURIComponent(document.getElementById('result_log').value);
var now = new window.Date();
var Year = now.getFullYear();
var Month = (("0"+(now.getMonth()+1)).slice(-2));
var Date = ("0"+now.getDate()).slice(-2);
var Hour = ("0"+now.getHours()).slice(-2);
var Min = ("0"+now.getMinutes()).slice(-2);
var Sec = ("0"+now.getSeconds()).slice(-2);
a.download = 'log_' + Year + Month + Date + '_' + Hour + Min + Sec + '.txt';
a.click();
}
// 参考: https://blog.katsubemakito.net/html5/fullscreen
/**
* フルスクリーン開始/終了時のイベント設定
*
* @param {function} callback
*/
function eventFullScreen(callback) {
document.addEventListener("fullscreenchange", callback, false);
document.addEventListener("webkitfullscreenchange", callback, false);
document.addEventListener("mozfullscreenchange", callback, false);
document.addEventListener("MSFullscreenChange", callback, false);
}
/**
* フルスクリーンが利用できるか
*
* @return {boolean}
*/
function enabledFullScreen() {
return (
document.fullscreenEnabled || document.mozFullScreenEnabled || document.documentElement.webkitRequestFullScreen || document.msFullscreenEnabled
);
}
/**
* フルスクリーンにする
*
* @param {object} [element]
*/
function goFullScreen(element = null) {
const doc = window.document;
const docEl = (element === null) ? doc.documentElement : element;
let requestFullScreen = docEl.requestFullscreen || docEl.mozRequestFullScreen || docEl.webkitRequestFullScreen || docEl.msRequestFullscreen;
requestFullScreen.call(docEl);
}
/**
* フルスクリーンをやめる
*/
function cancelFullScreen() {
const doc = window.document;
const cancelFullScreen = doc.exitFullscreen || doc.mozCancelFullScreen || doc.webkitExitFullscreen || doc.msExitFullscreen;
cancelFullScreen.call(doc);
}
/**
* フルスクリーン中のオブジェクトを返却
*/
function getFullScreenObject() {
const doc = window.document;
const objFullScreen = doc.fullscreenElement || doc.mozFullScreenElement || doc.webkitFullscreenElement || doc.msFullscreenElement;
return (objFullScreen);
}
const FullScreenBtn = document.querySelector("#FullScreenBtn"); // フルスクリーン化ボタン
const objResultText = document.querySelector("#result_text");
var font_size_windowed = parseFloat(getComputedStyle(objResultText).getPropertyValue('font-size'));
var flag_font_size_styled = 0;
window.onload = () => {
vr_function();
const video_doc = document.querySelector("#video_wrapper"); // フルスクリーンにするオブジェクト
//--------------------------------
// [event] 開始ボタンをクリック
//--------------------------------
FullScreenBtn.addEventListener("click", () => {
if (getFullScreenObject()) {
// フルスクリーンを解除
cancelFullScreen(video_doc);
}
else {
// フルスクリーンを開始
if (!enabledFullScreen()) {
alert("フルスクリーンに対応していません");
return (false);
}
goFullScreen(video_doc);
}
});
//--------------------------------
// フルスクリーンイベント
//--------------------------------
eventFullScreen(() => {
// ボタンを入れ替える
if (getFullScreenObject()) {
// フルスクリーン時に文字と画面の比率を維持
const ratio = window.parent.screen.height / document.querySelector("#result_video").clientHeight
font_size_windowed = parseFloat(getComputedStyle(objResultText).getPropertyValue('font-size'));
if(objResultText.style.fontSize){
// スライダーでフォントサイズの指定がされているかどうかを記録
flag_font_size_styled = 1;
font_size_windowed = parseFloat(getComputedStyle(objResultText).fontSize);
}
document.querySelector('#result_text').style.fontSize = parseFloat(getComputedStyle(objResultText).getPropertyValue('font-size')) * ratio +'px';
console.log("フルスクリーン開始");
} else {
// フルスクリーン時から通常画面に戻るときに文字と画面の比率を維持
if(flag_font_size_styled){
document.querySelector('#result_text').style.fontSize = document.querySelector("#value_font_size").textContent+'px';
}else{
// スライダーでフォントサイズの指定がされていなかった（デフォルトだった）場合は単にstyleのfontSizeを削除する
// 分割表示時のデフォルトCSSを活かすため
document.querySelector('#result_text').style.fontSize = '';
}
console.log("フルスクリーン終了");
}
});
initConfig();
};
// 言語切替
// 参考: https://www.google.com/intl/ja/chrome/demos/speech.html
var langs =
[['Japanese', ['ja-JP']],
['English', ['en-US', 'United States'],
['en-AU', 'Australia'],
['en-CA', 'Canada'],
['en-IN', 'India'],
['en-KE', 'Kenya'],
['en-TZ', 'Tanzania'],
['en-GH', 'Ghana'],
['en-NZ', 'New Zealand'],
['en-NG', 'Nigeria'],
['en-ZA', 'South Africa'],
['en-PH', 'Philippines'],
['en-GB', 'United Kingdom'],],
['Afrikaans', ['af-ZA']],
['አማርኛ', ['am-ET']],
['Azərbaycanca', ['az-AZ']],
['বাংলা', ['bn-BD', 'বাংলাদেশ'],
['bn-IN', 'ভারত']],
['Bahasa Indonesia',['id-ID']],
['Bahasa Melayu', ['ms-MY']],
['Català', ['ca-ES']],
['Čeština', ['cs-CZ']],
['Dansk', ['da-DK']],
['Deutsch', ['de-DE']],
['Español', ['es-AR', 'Argentina'],
['es-BO', 'Bolivia'],
['es-CL', 'Chile'],
['es-CO', 'Colombia'],
['es-CR', 'Costa Rica'],
['es-EC', 'Ecuador'],
['es-SV', 'El Salvador'],
['es-ES', 'España'],
['es-US', 'Estados Unidos'],
['es-GT', 'Guatemala'],
['es-HN', 'Honduras'],
['es-MX', 'México'],
['es-NI', 'Nicaragua'],
['es-PA', 'Panamá'],
['es-PY', 'Paraguay'],
['es-PE', 'Perú'],
['es-PR', 'Puerto Rico'],
['es-DO', 'República Dominicana'],
['es-UY', 'Uruguay'],
['es-VE', 'Venezuela']],
['Euskara', ['eu-ES']],
['Filipino', ['fil-PH']],
['Français', ['fr-FR']],
['Basa Jawa', ['jv-ID']],
['Galego', ['gl-ES']],
['ગુજરાતી', ['gu-IN']],
['Hrvatski', ['hr-HR']],
['IsiZulu', ['zu-ZA']],
['Íslenska', ['is-IS']],
['Italiano', ['it-IT', 'Italia'],
['it-CH', 'Svizzera']],
['ಕನ್ನಡ', ['kn-IN']],
['ភាសាខ្មែរ', ['km-KH']],
['Latviešu', ['lv-LV']],
['Lietuvių', ['lt-LT']],
['മലയാളം', ['ml-IN']],
['मराठी', ['mr-IN']],
['Magyar', ['hu-HU']],
['ລາວ', ['lo-LA']],
['Nederlands', ['nl-NL']],
['नेपाली भाषा', ['ne-NP']],
['Norsk bokmål', ['nb-NO']],
['Polski', ['pl-PL']],
['Português', ['pt-BR', 'Brasil'],
['pt-PT', 'Portugal']],
['Română', ['ro-RO']],
['සිංහල', ['si-LK']],
['Slovenščina', ['sl-SI']],
['Basa Sunda', ['su-ID']],
['Slovenčina', ['sk-SK']],
['Suomi', ['fi-FI']],
['Svenska', ['sv-SE']],
['Kiswahili', ['sw-TZ', 'Tanzania'],
['sw-KE', 'Kenya']],
['ქართული', ['ka-GE']],
['Հայերեն', ['hy-AM']],
['தமிழ்', ['ta-IN', 'இந்தியா'],
['ta-SG', 'சிங்கப்பூர்'],
['ta-LK', 'இலங்கை'],
['ta-MY', 'மலேசியா']],
['తెలుగు', ['te-IN']],
['Tiếng Việt', ['vi-VN']],
['Türkçe', ['tr-TR']],
['اُردُو', ['ur-PK', 'پاکستان'],
['ur-IN', 'بھارت']],
['Ελληνικά', ['el-GR']],
['български', ['bg-BG']],
['Pусский', ['ru-RU']],
['Српски', ['sr-RS']],
['Українська', ['uk-UA']],
['한국어', ['ko-KR']],
['中文', ['cmn-Hans-CN', '普通话 (中国大陆)'],
['cmn-Hans-HK', '普通话 (香港)'],
['cmn-Hant-TW', '中文 (台灣)'],
['yue-Hant-HK', '粵語 (香港)']],
['हिन्दी', ['hi-IN']],
['ภาษาไทย', ['th-TH']]];
for (var i = 0; i < langs.length; i++) {
select_language.options[i] = new Option(langs[i][0], i);
}
// デフォルトの言語を設定
select_language.selectedIndex = 0;
updateCountry();
select_dialect.selectedIndex = 0;
function updateCountry() {
for (var i = select_dialect.options.length - 1; i >= 0; i--) {
select_dialect.remove(i);
}
var list = langs[select_language.selectedIndex];
for (var i = 1; i < list.length; i++) {
select_dialect.options.add(new Option(list[i][1], list[i][0]));
}
select_dialect.style.display = list[1].length == 1 ? 'none' : 'inline';
updateLanguage()
}
function updateLanguage() {
var flag_recognition_stopped = 0;
if(recognition){
recognition.stop();
flag_recognition_stopped = 1;
}
lang = select_dialect.value;
if(flag_recognition_stopped){
vr_function();
}
var el_status_kuromoji_loading = document.getElementById('status_kuromoji_loading');
var el_checkbox_hiragana = document.getElementById('checkbox_hiragana_wrapper');
if(lang == 'ja-JP'){
el_status_kuromoji_loading.style.display = "inline-block";
el_checkbox_hiragana.style.display = "inline";
}else{
el_status_kuromoji_loading.style.display = "none";
el_checkbox_hiragana.style.display = "none";
}
}
// 結果の翻訳機能を追加
// 参考: https://pisuke-code.com/js-usage-of-google-trans-api/
function googleTranslateElementInit() {
new google.translate.TranslateElement({
layout: google.translate.TranslateElement.InlineLayout.SIMPLE
}, 'google_translate_element');
}
// フォント切替
// 参考: https://www.google.com/intl/ja/chrome/demos/speech.html
var fonts_custom =
[['Noto Sans JP', "'Noto Sans JP', sans-serif"],
['BIZ UD ゴシック（Windows 10）', "'BIZ UDゴシック', 'BIZ UDGothic', 'Noto Sans JP', sans-serif"],
['BIZ UD 明朝（Windows 10）', "'BIZ UD明朝', 'BIZ UDMincho', 'Noto Sans JP', sans-serif"],
['游ゴシック', "游ゴシック体, 'Yu Gothic', YuGothic, sans-serif"],
['メイリオ', "'メイリオ', 'Meiryo', 'Noto Sans JP', sans-serif"],
['ポップ体（Windows）', "'HGS創英角ﾎﾟｯﾌﾟ体', 'Noto Sans JP', sans-serif"],
['ゴシック体（ブラウザ標準）', "sans-serif"],
['明朝体（ブラウザ標準）', "serif"]];
for (var i = 0; i < fonts_custom.length; i++) {
select_font.options[i] = new Option(fonts_custom[i][0], i);
}
// デフォルトの言語を設定
select_font.selectedIndex = 0;
// 初期設定
const config = JSON.parse(localStorage.speech_to_text_config || '{}');
function initConfig() {
function triggerEvent(type, elem) {
const ev = document.createEvent('HTMLEvents');
ev.initEvent(type, true, true);
elem.dispatchEvent(ev);
}
['slider_font_size',
'slider_opacity',
'slider_text_shadow_stroke',
'slider_text_stroke',
'slider_line_height',
'slider_letter_spacing',
'selector_text_color',
'selector_text_shadow_color',
'selector_text_stroke_color',
'slider_text_bg_opacity',
'selector_text_bg_color',
'selector_video_bg',
].forEach(id => {
if (typeof config[id] !== 'undefined') {
const el = document.getElementById(id);
el.value = config[id];
triggerEvent('input', el);
}
});
['video_bg',
'result_video',
'text_overlay_wrapper',
'FullScreenBtn'
].forEach(id => {
if (typeof config[id] !== 'undefined') {
const el = document.getElementById(id);
if (config[id]) {
Object.keys(config[id]).forEach(key => {
if(config[id][key]){
el.classList.add(key);
}else{
el.classList.remove(key);
}
});
}
}
});
if (typeof config.position !== 'undefined') {
const el = document.getElementById(config.position);
el.checked = 'checked';
triggerEvent('input', el);
}
if (typeof config.select_font !== 'undefined') {
select_font.selectedIndex = config.select_font;
triggerEvent('change', select_font);
}
if (typeof config.checkbox_timestamp !== 'undefined') {
const el = document.getElementById('checkbox_timestamp');
el.checked = config.checkbox_timestamp;
triggerEvent('input', el);
}
if (typeof config.checkbox_hiragana !== 'undefined') {
const el = document.getElementById('checkbox_hiragana');
el.checked = config.checkbox_hiragana;
triggerEvent('input', el);
}
if (typeof config.select_autoclear_text !== 'undefined') {
const el = document.getElementById('select_autoclear_text');
selectValueIfExists(el, config.select_autoclear_text);
triggerEvent('change', el);
}
document.querySelectorAll('input.control_input').forEach(
el => el.addEventListener('input', updateConfigValue)
);
document.querySelectorAll('input[name="selector_position"]').forEach(
el => el.addEventListener('input', ev => updateConfig('position', el.id))
);
document.querySelector('#select_camera').addEventListener('change', updateConfigValue);
document.querySelector('#select_font').addEventListener('change', updateConfigValue);
document.querySelector('#checkbox_timestamp').addEventListener('input', function(e) {updateConfig(e.target.id, e.target.checked)});
document.querySelector('#checkbox_hiragana').addEventListener('input', function(e) {updateConfig(e.target.id, e.target.checked)});
document.querySelector('#checkbox_slack').addEventListener('input', function(e) {updateConfig(e.target.id, e.target.checked)});
document.querySelector('#select_autoclear_text').addEventListener('change', updateConfigValue);
}
function updateConfig(key, value) {
config[key] = value;
localStorage.speech_to_text_config = JSON.stringify(config);
}
function updateConfigClass(key, value_key, value) {
if(config[key] == undefined){
config[key] = {};
}
config[key][value_key] = value;
localStorage.speech_to_text_config = JSON.stringify(config);
}