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ml.js
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/**
* Formatter which is used for translating.
* When it was loaded as a module, 'formatMessage' will be replaced which is used in the runtime.
* @type {Function}
*/
let formatMessage = require('format-message');
/**
* URL to get this extension as a module.
* When it was loaded as a module, 'extensionURL' will be replaced a URL which is retrieved from.
* @type {string}
*/
let extensionURL = 'https://champierre.github.io/ml2scratch/ml2scratch.mjs';
const HAT_TIMEOUT = 100;
const blockIconURI = 'data:image/png;base64,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';
const Message = {
train_label_1: {
'ja': 'ラベル1を学習する',
'ja-Hira': 'ラベル1をがくしゅうする',
'en': 'train label 1',
'zh-cn': '学习标签1',
'zh-tw': '學習標籤1'
},
train_label_2: {
'ja': 'ラベル2を学習する',
'ja-Hira': 'ラベル2をがくしゅうする',
'en': 'train label 2',
'zh-cn': '学习标签2',
'zh-tw': '學習標籤2'
},
train_label_3: {
'ja': 'ラベル3を学習する',
'ja-Hira': 'ラベル3をがくしゅうする',
'en': 'train label 3',
'zh-cn': '学习标签3',
'zh-tw': '學習標籤3'
},
train: {
'ja': 'ラベル[LABEL]を学習する',
'ja-Hira': 'ラベル[LABEL]をがくしゅうする',
'en': 'train label [LABEL]',
'zh-cn': '学习标签[LABEL]',
'zh-tw': '學習標籤[LABEL]'
},
when_received_block: {
'ja': 'ラベル[LABEL]を受け取ったとき',
'ja-Hira': 'ラベル[LABEL]をうけとったとき',
'en': 'when received label:[LABEL]',
'zh-cn': '接收到类别[LABEL]时',
'zh-tw': '接收到類別[LABEL]時'
},
label_block: {
'ja': 'ラベル',
'ja-Hira': 'ラベル',
'en': 'label',
'zh-cn': '标签',
'zh-tw': '標籤'
},
counts_label_1: {
'ja': 'ラベル1の枚数',
'ja-Hira': 'ラベル1のまいすう',
'en': 'counts of label 1',
'zh-cn': '标签数量1',
'zh-tw': '標籤數量1'
},
counts_label_2: {
'ja': 'ラベル2の枚数',
'ja-Hira': 'ラベル2のまいすう',
'en': 'counts of label 2',
'zh-cn': '标签数量2',
'zh-tw': '標籤數量2'
},
counts_label_3: {
'ja': 'ラベル3の枚数',
'ja-Hira': 'ラベル3のまいすう',
'en': 'counts of label 3',
'zh-cn': '标签数量3',
'zh-tw': '標籤數量3'
},
counts_label_4: {
'ja': 'ラベル4の枚数',
'ja-Hira': 'ラベル4のまいすう',
'en': 'counts of label 4',
'zh-cn': '标签数量4',
'zh-tw': '標籤數量4'
},
counts_label_5: {
'ja': 'ラベル5の枚数',
'ja-Hira': 'ラベル5のまいすう',
'en': 'counts of label 5',
'zh-cn': '标签数量5',
'zh-tw': '標籤數量5'
},
counts_label_6: {
'ja': 'ラベル6の枚数',
'ja-Hira': 'ラベル6のまいすう',
'en': 'counts of label 6',
'zh-cn': '标签数量6',
'zh-tw': '標籤數量6'
},
counts_label_7: {
'ja': 'ラベル7の枚数',
'ja-Hira': 'ラベル7のまいすう',
'en': 'counts of label 7',
'zh-cn': '标签数量7',
'zh-tw': '標籤數量7'
},
counts_label_8: {
'ja': 'ラベル8の枚数',
'ja-Hira': 'ラベル8のまいすう',
'en': 'counts of label 8',
'zh-cn': '标签数量8',
'zh-tw': '標籤數量8'
},
counts_label_9: {
'ja': 'ラベル9の枚数',
'ja-Hira': 'ラベル9のまいすう',
'en': 'counts of label 9',
'zh-cn': '标签数量9',
'zh-tw': '標籤數量9'
},
counts_label_10: {
'ja': 'ラベル10の枚数',
'ja-Hira': 'ラベル10のまいすう',
'en': 'counts of label 10',
'zh-cn': '标签数量10',
'zh-tw': '標籤數量10'
},
counts_label: {
'ja': 'ラベル[LABEL]の枚数',
'ja-Hira': 'ラベル[LABEL]のまいすう',
'en': 'counts of label [LABEL]',
'zh-cn': '标签数量[LABEL]',
'zh-tw': '標籤數量[LABEL]'
},
any: {
'ja': 'のどれか',
'ja-Hira': 'のどれか',
'en': 'any',
'zh-cn': '任何',
'zh-tw': '任何'
},
all: {
'ja': 'の全て',
'ja-Hira': 'のすべて',
'en': 'all',
'zh-cn': '所有',
'zh-tw': '所有量'
},
reset: {
'ja': 'ラベル[LABEL]の学習をリセット',
'ja-Hira': 'ラベル[LABEL]のがくしゅうをリセット',
'en': 'reset label:[LABEL]',
'zh-cn': '重置[LABEL]',
'zh-tw': '重置[LABEL]'
},
download_learning_data: {
'ja': '学習データをダウンロード',
'ja-Hira': 'がくしゅうデータをダウンロード',
'en': 'download learning data',
'zh-cn': '下载学习数据',
'zh-tw': '下載學習資料'
},
upload_learning_data: {
'ja': '学習データをアップロード',
'ja-Hira': 'がくしゅうデータをアップロード',
'en': 'upload learning data',
'zh-cn': '上传学习数据',
'zh-tw': '上傳學習資料'
},
upload: {
'ja': 'アップロード',
'ja-Hira': 'アップロード',
'en': 'upload',
'zh-cn': '上传',
'zh-tw': '上傳'
},
uploaded: {
'ja': 'アップロードが完了しました。',
'ja-Hira': 'アップロードがかんりょうしました。',
'en': 'The upload is complete.',
'zh-cn': '上传完成。',
'zh-tw': '上傳完成。'
},
upload_instruction: {
'ja': 'ファイルを選び、アップロードボタンをクリックして下さい。',
'ja-Hira': 'ファイルをえらび、アップロードボタンをクリックしてください。',
'en': 'Select a file and click the upload button.',
'zh-cn': '选择一个文件，然后单击上传按钮。',
'zh-tw': '選擇一個檔案，然後點擊上傳按鈕'
},
confirm_reset: {
'ja': '本当にリセットしてもよろしいですか？',
'ja-Hira': 'ほんとうにリセットしてもよろしいですか？',
'en': 'Are you sure to reset?',
'zh-cn': '你确定要重置吗？',
'zh-tw': '您確定要重置嗎？'
},
toggle_classification: {
'ja': 'ラベル付けを[CLASSIFICATION_STATE]にする',
'ja-Hira': 'ラベルづけを[CLASSIFICATION_STATE]にする',
'en': 'turn classification [CLASSIFICATION_STATE]',
'zh-cn': '[CLASSIFICATION_STATE]分类',
'zh-tw': '[CLASSIFICATION_STATE]分類'
},
set_classification_interval: {
'ja': 'ラベル付けを[CLASSIFICATION_INTERVAL]秒間に1回行う',
'ja-Hira': 'ラベルづけを[CLASSIFICATION_INTERVAL]びょうかんに1かいおこなう',
'en': 'Label once every [CLASSIFICATION_INTERVAL] seconds',
'zh-cn': '每隔[CLASSIFICATION_INTERVAL]秒标记一次',
'zh-tw': '每隔[CLASSIFICATION_INTERVAL]秒標記一次'
},
video_toggle: {
'ja': 'ビデオを[VIDEO_STATE]にする',
'ja-Hira': 'ビデオを[VIDEO_STATE]にする',
'en': 'turn video [VIDEO_STATE]',
'zh-cn': '[VIDEO_STATE]摄像头',
'zh-tw': '視訊設為[VIDEO_STATE]'
},
set_input: {
'ja': '[INPUT]の画像を学習/判定する',
'ja-Hira': '[INPUT]のがぞうをがくしゅう/はんていする',
'en': 'Learn/Classify [INPUT] image',
'zh-cn': '学习/分类[INPUT]图像',
'zh-tw': '學習/分類[INPUT]影像'
},
on: {
'ja': '入',
'ja-Hira': 'いり',
'en': 'on',
'zh-cn': '开启',
'zh-tw': '開啟'
},
off: {
'ja': '切',
'ja-Hira': 'きり',
'en': 'off',
'zh-cn': '关闭',
'zh-tw': '關閉'
},
video_on_flipped: {
'ja': '左右反転',
'ja-Hira': 'さゆうはんてん',
'en': 'on flipped',
'zh-cn': '镜像开启',
'zh-tw': '翻轉'
},
webcam: {
'ja': 'カメラ',
'ja-Hira': 'カメラ',
'en': 'webcam',
'zh-cn': '网络摄像头',
'zh-tw': '網路攝影機'
},
stage: {
'ja': 'ステージ',
'ja-Hira': 'ステージ',
'en': 'stage',
'zh-cn': '舞台',
'zh-tw': '舞台'
},
first_training_warning: {
'ja': '最初の学習にはしばらく時間がかかるので、何度もクリックしないで下さい。',
'ja-Hira': 'さいしょのがくしゅうにはしばらくじかんがかかるので、なんどもクリックしないでください。',
'en': 'The first training will take a while, so do not click again and again.',
'zh-cn': '第一项研究需要一段时间，所以不要一次又一次地点击。',
'zh-tw': '第一次訓練需要一段時間，請稍後，不要一直點擊。'
}
}
const AvailableLocales = ['en', 'ja', 'ja-Hira', 'zh-cn', 'zh-tw'];
class Scratch3ML2ScratchBlocks {
/**
* @return {string} - the name of this extension.
*/
static get EXTENSION_NAME() {
return 'ML2Scratch';
}
/**
* @return {string} - the ID of this extension.
*/
static get EXTENSION_ID() {
return 'ml2scratch';
}
/**
* URL to get this extension.
* @type {string}
*/
static get extensionURL() {
return extensionURL;
}
/**
* Set URL to get this extension.
* extensionURL will be reset when the module is loaded from the web.
* @param {string} url - URL
*/
static set extensionURL(url) {
extensionURL = url;
}
constructor(runtime) {
this.runtime = runtime;
if (runtime.formatMessage) {
// Replace 'formatMessage' to a formatter which is used in the runtime.
formatMessage = runtime.formatMessage;
}
this.when_received = false;
this.when_received_arr = Array(8).fill(false);
this.label = null;
this.locale = this.setLocale();
this.blockClickedAt = null;
this.counts = null;
this.firstTraining = true;
this.interval = 1000;
this.globalVideoTransparency = 0;
this.setVideoTransparency({
TRANSPARENCY: this.globalVideoTransparency
});
this.canvas = document.querySelector('canvas');
this.runtime.ioDevices.video.enableVideo().then(() => {this.input = this.runtime.ioDevices.video.provider.video});
this.knnClassifier = ml5.KNNClassifier();
this.featureExtractor = ml5.featureExtractor('MobileNet', () => {
console.log('[featureExtractor] Model Loaded!');
this.timer = setInterval(() => {
this.classify();
}, this.interval);
});
}
getInfo() {
this.locale = this.setLocale();
return {
id: Scratch3ML2ScratchBlocks.EXTENSION_ID,
name: Scratch3ML2ScratchBlocks.EXTENSION_NAME,
extensionURL: Scratch3ML2ScratchBlocks.extensionURL,
blockIconURI: blockIconURI,
blocks: [
{
opcode: 'addExample1',
blockType: BlockType.COMMAND,
text: Message.train_label_1[this.locale]
},
{
opcode: 'addExample2',
blockType: BlockType.COMMAND,
text: Message.train_label_2[this.locale]
},
{
opcode: 'addExample3',
blockType: BlockType.COMMAND,
text: Message.train_label_3[this.locale]
},
{
opcode: 'train',
text: Message.train[this.locale],
blockType: BlockType.COMMAND,
arguments: {
LABEL: {
type: ArgumentType.STRING,
menu: 'train_menu',
defaultValue: '4'
}
}
},
{
opcode: 'trainAny',
text: Message.train[this.locale],
blockType: BlockType.COMMAND,
arguments: {
LABEL: {
type: ArgumentType.STRING,
defaultValue: '11'
}
}
},
{
opcode: 'getLabel',
text: Message.label_block[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'whenReceived',
text: Message.when_received_block[this.locale],
blockType: BlockType.HAT,
arguments: {
LABEL: {
type: ArgumentType.STRING,
menu: 'received_menu',
defaultValue: 'any'
}
}
},
{
opcode: 'whenReceivedAny',
text: Message.when_received_block[this.locale],
blockType: BlockType.HAT,
arguments: {
LABEL: {
type: ArgumentType.STRING,
defaultValue: '11'
}
}
},
{
opcode: 'getCountByLabel1',
text: Message.counts_label_1[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel2',
text: Message.counts_label_2[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel3',
text: Message.counts_label_3[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel4',
text: Message.counts_label_4[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel5',
text: Message.counts_label_5[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel6',
text: Message.counts_label_6[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel7',
text: Message.counts_label_7[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel8',
text: Message.counts_label_8[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel9',
text: Message.counts_label_9[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel10',
text: Message.counts_label_10[this.locale],
blockType: BlockType.REPORTER
},
{
opcode: 'getCountByLabel',
text: Message.counts_label[this.locale],
blockType: BlockType.REPORTER,
arguments: {
LABEL: {
type: ArgumentType.STRING,
defaultValue: '11'
}
}
},
{
opcode: 'reset',
blockType: BlockType.COMMAND,
text: Message.reset[this.locale],
arguments: {
LABEL: {
type: ArgumentType.STRING,
menu: 'reset_menu',
defaultValue: 'all'
}
}
},
{
opcode: 'resetAny',
blockType: BlockType.COMMAND,
text: Message.reset[this.locale],
arguments: {
LABEL: {
type: ArgumentType.STRING,
defaultValue: '11'
}
}
},
{
opcode: 'download',
text: Message.download_learning_data[this.locale],
blockType: BlockType.COMMAND
},
{
opcode: 'upload',
text: Message.upload_learning_data[this.locale],
blockType: BlockType.COMMAND
},
{
opcode: 'toggleClassification',
text: Message.toggle_classification[this.locale],
blockType: BlockType.COMMAND,
arguments: {
CLASSIFICATION_STATE: {
type: ArgumentType.STRING,
menu: 'classification_menu',
defaultValue: 'off'
}
}
},
{
opcode: 'setClassificationInterval',
text: Message.set_classification_interval[this.locale],
blockType: BlockType.COMMAND,
arguments: {
CLASSIFICATION_INTERVAL: {
type: ArgumentType.STRING,
menu: 'classification_interval_menu',
defaultValue: '1'
}
}
},
{
opcode: 'videoToggle',
text: Message.video_toggle[this.locale],
blockType: BlockType.COMMAND,
arguments: {
VIDEO_STATE: {
type: ArgumentType.STRING,
menu: 'video_menu',
defaultValue: 'off'
}
}
},
{
opcode: 'setVideoTransparency',
text: formatMessage({
id: 'videoSensing.setVideoTransparency',
default: 'set video transparency to [TRANSPARENCY]',
description: 'Controls transparency of the video preview layer'
}),
arguments: {
TRANSPARENCY: {
type: ArgumentType.NUMBER,
defaultValue: 50
}
}
},
{
opcode: 'setInput',
text: Message.set_input[this.locale],
blockType: BlockType.COMMAND,
arguments: {
INPUT: {
type: ArgumentType.STRING,
menu: 'input_menu',
defaultValue: 'webcam'
}
}
}
],
menus: {
received_menu: {
items: this.getMenu('received')
},
reset_menu: {
items: this.getMenu('reset')
},
train_menu: {
items: this.getTrainMenu()
},
count_menu: {
items: this.getTrainMenu()
},
video_menu: this.getVideoMenu(),
classification_interval_menu: {
acceptReporters: true,
items: this.getClassificationIntervalMenu()
},
classification_menu: this.getClassificationMenu(),
input_menu: this.getInputMenu()
}
};
}
/**
* The transparency setting of the video preview stored in a value
* accessible by any object connected to the virtual machine.
* @type {number}
*/
get globalVideoTransparency () {
const stage = this.runtime.getTargetForStage();
if (stage) {
return stage.videoTransparency;
}
return 50;
}
set globalVideoTransparency (transparency) {
const stage = this.runtime.getTargetForStage();
if (stage) {
stage.videoTransparency = transparency;
}
return transparency;
}
addExample1() {
this.firstTrainingWarning();
let features = this.featureExtractor.infer(this.input);
this.knnClassifier.addExample(features, '1');
this.updateCounts();
}
addExample2() {
this.firstTrainingWarning();
let features = this.featureExtractor.infer(this.input);
this.knnClassifier.addExample(features, '2');
this.updateCounts();
}
addExample3() {
this.firstTrainingWarning();
let features = this.featureExtractor.infer(this.input);
this.knnClassifier.addExample(features, '3');
this.updateCounts();
}
train(args) {
this.firstTrainingWarning();
let features = this.featureExtractor.infer(this.input);
this.knnClassifier.addExample(features, args.LABEL);
this.updateCounts();
}
trainAny(args) {
this.train(args);
}
getLabel() {
return this.label;
}
whenReceived(args) {
if (args.LABEL === 'any') {
if (this.when_received) {
setTimeout(() => {
this.when_received = false;
}, HAT_TIMEOUT);
return true;
}
return false;
} else {
if (this.when_received_arr[args.LABEL]) {
setTimeout(() => {
this.when_received_arr[args.LABEL] = false;
}, HAT_TIMEOUT);
return true;
}
return false;
}
}
whenReceivedAny(args) {
return this.whenReceived(args);
}
getCountByLabel1() {
if (this.counts) {
return this.counts['1'];
} else {
return 0;
}
}
getCountByLabel2() {
if (this.counts) {
return this.counts['2'];
} else {
return 0;
}
}
getCountByLabel3() {
if (this.counts) {
return this.counts['3'];
} else {
return 0;
}
}
getCountByLabel4() {
if (this.counts) {
return this.counts['4'];
} else {
return 0;
}
}
getCountByLabel5() {
if (this.counts) {
return this.counts['5'];
} else {
return 0;
}
}
getCountByLabel6() {
if (this.counts) {
return this.counts['6'];
} else {
return 0;
}
}
getCountByLabel7() {
if (this.counts) {
return this.counts['7'];
} else {
return 0;
}
}
getCountByLabel8() {
if (this.counts) {
return this.counts['8'];
} else {
return 0;
}
}
getCountByLabel9() {
if (this.counts) {
return this.counts['9'];
} else {
return 0;
}
}
getCountByLabel10() {
if (this.counts) {
return this.counts['10'];
} else {
return 0;
}
}
getCountByLabel(args) {
if (this.counts[args.LABEL]) {
return this.counts[args.LABEL];
} else {
return 0;
}
}
reset(args) {
if (this.actionRepeated()) { return };
setTimeout(() => {
let result = confirm(Message.confirm_reset[this.locale]);
if (result) {
if (args.LABEL == 'all') {
this.knnClassifier.clearAllLabels();
for (let label in this.counts) {
this.counts[label] = 0;
}
} else {
if (this.counts[args.LABEL] > 0) {
this.knnClassifier.clearLabel(args.LABEL);
this.counts[args.LABEL] = 0;
}
}
}
}, 1000);
}
resetAny(args) {
this.reset(args);
}
download() {
if (this.actionRepeated()) { return };
let fileName = String(Date.now());
this.knnClassifier.save(fileName);
}
upload() {
if (this.actionRepeated()) { return };
let width = 480;
let height = 200;
let left = window.innerWidth / 2;
let top = window.innerHeight / 2;
let x = left - (width / 2);
let y = top - (height / 2);
uploadWindow = window.open('', null, 'top=' + y + ',left=' + x + ',width=' + width + ',height=' + height);
uploadWindow.document.open();
uploadWindow.document.write('<html><head><title>' + Message.upload_learning_data[this.locale] + '</title></head><body>');
uploadWindow.document.write('<p>' + Message.upload_instruction[this.locale] + '</p>');
uploadWindow.document.write('<input type="file" id="upload-files">');
uploadWindow.document.write('<input type="button" value="' + Message.upload[this.locale] + '" id="upload-button">');
uploadWindow.document.write('</body></html>');
uploadWindow.document.close();
uploadWindow.document.getElementById("upload-button").onclick = () =>{
this.uploadButtonClicked(uploadWindow);
}
}
toggleClassification (args) {
let state = args.CLASSIFICATION_STATE;
if (this.timer) {
clearTimeout(this.timer);
}
if (state === 'on') {
this.timer = setInterval(() => {
this.classify();
}, this.interval);
}
}
setClassificationInterval (args) {
if (this.timer) {
clearTimeout(this.timer);
}
this.interval = args.CLASSIFICATION_INTERVAL * 1000;
this.timer = setInterval(() => {
this.classify();
}, this.interval);
}
videoToggle (args) {
let state = args.VIDEO_STATE;
if (state === 'off') {
this.runtime.ioDevices.video.disableVideo();
} else {
this.runtime.ioDevices.video.enableVideo().then(() => {this.input = this.runtime.ioDevices.video.provider.video});
this.runtime.ioDevices.video.mirror = state === "on";
}
}
/**
* A scratch command block handle that configures the video preview's
* transparency from passed arguments.
* @param {object} args - the block arguments
* @param {number} args.TRANSPARENCY - the transparency to set the video
* preview to
*/
setVideoTransparency (args) {
const transparency = Cast.toNumber(args.TRANSPARENCY);
this.globalVideoTransparency = transparency;
this.runtime.ioDevices.video.setPreviewGhost(transparency);
}
setInput (args) {
let input = args.INPUT;
if (input === 'webcam') {
this.input = this.runtime.ioDevices.video.provider.video;
} else {
this.input = this.canvas;
}
}
uploadButtonClicked(uploadWindow) {
let files = uploadWindow.document.getElementById('upload-files').files;
if (files.length <= 0) {
uploadWindow.alert('Please select JSON file.');
return false;
}
let fr = new FileReader();
fr.onload = (e) => {
let data = JSON.parse(e.target.result);
this.knnClassifier.load(data, () => {
console.log('uploaded!');
this.updateCounts();
alert(Message.uploaded[this.locale]);
});
}
fr.onloadend = (e) => {
uploadWindow.document.getElementById('upload-files').value = "";
}
fr.readAsText(files.item(0));
uploadWindow.close();
}
classify() {
let numLabels = this.knnClassifier.getNumLabels();
if (numLabels == 0) return;
let features = this.featureExtractor.infer(this.input);
this.knnClassifier.classify(features, (err, result) => {
if (err) {
console.error(err);
} else {
this.label = this.getTopConfidenceLabel(result.confidencesByLabel);
this.when_received = true;
this.when_received_arr[this.label] = true
}
});
}
getTopConfidenceLabel(confidences) {
let topConfidenceLabel;
let topConfidence = 0;
for (let label in confidences) {
if (confidences[label] > topConfidence) {
topConfidenceLabel = label;
}
}
return topConfidenceLabel;
}
updateCounts() {
this.counts = this.knnClassifier.getCountByLabel();
console.debug(this.counts);
}
actionRepeated() {
let currentTime = Date.now();
if (this.blockClickedAt && (this.blockClickedAt + 250) > currentTime) {
console.log('Please do not repeat trigerring this block.');
this.blockClickedAt = currentTime;
return true;
} else {
this.blockClickedAt = currentTime;
return false;
}
}
getMenu(name) {
let arr = [];
let defaultValue = 'any';
let text = Message.any[this.locale];
if (name == 'reset') {
defaultValue = 'all';
text = Message.all[this.locale];
}
arr.push({text: text, value: defaultValue});
for(let i = 1; i <= 10; i++) {
let obj = {};
obj.text = i.toString(10);
obj.value = i.toString(10);
arr.push(obj);
};
return arr;
}
getTrainMenu() {
let arr = [];
for(let i = 4; i <= 10; i++) {
let obj = {};
obj.text = i.toString(10);
obj.value = i.toString(10);
arr.push(obj);
};
return arr;
}
getVideoMenu() {
return [
{
text: Message.off[this.locale],
value: 'off'
},
{
text: Message.on[this.locale],
value: 'on'
},
{
text: Message.video_on_flipped[this.locale],
value: 'on-flipped'
}
]
}
getInputMenu() {
return [