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namespace CORE {
export interface IWindow extends Window {
webkitSpeechRecognition: any;
}
}
const { webkitSpeechRecognition }: CORE.IWindow = window as CORE.IWindow;
export default class DictationManager {
public static Instance = new DictationManager();
private isListening = false;
private recognizer: any;
constructor() {
this.recognizer = new webkitSpeechRecognition();
this.recognizer.interimResults = false;
this.recognizer.continuous = true;
}
finish = (handler: any, data: any) => {
handler(data);
this.isListening = false;
this.recognizer.stop();
}
listen = () => {
if (this.isListening) {
return undefined;
}
this.isListening = true;
this.recognizer.start();
return new Promise<string>((resolve, reject) => {
this.recognizer.onresult = (e: any) => this.finish(resolve, e.results[0][0].transcript);
this.recognizer.onerror = (e: any) => this.finish(reject, e);
});
}
}
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