react-mic-record/es/components/ReactMicRecord.js

Record audio from your microphone

var _class, _temp;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import React from 'react';
import MicrophoneRecorder from '../libs/MicrophoneRecorder';
import AudioContext from '../libs/AudioContext';
import AudioPlayer from '../libs/AudioPlayer';
import Visualizer from '../libs/Visualizer';

var ReactMicRecord = (_temp = _class = function (_React$Component) {
    _inherits(ReactMicRecord, _React$Component);

    function ReactMicRecord(props) {
        _classCallCheck(this, ReactMicRecord);

        var _this = _possibleConstructorReturn(this, _React$Component.call(this, props));

        _this.audioContext = null;
        _this.microphoneRecorder = null;
        _this.state = {
            canvas: null,
            canvasCtx: null
        };
        return _this;
    }

    ReactMicRecord.prototype.componentDidMount = function componentDidMount() {
        var _this2 = this;

        var _props = this.props,
            onStop = _props.onStop,
            onStart = _props.onStart,
            onData = _props.onData,
            audioElem = _props.audioElem,
            audioBitsPerSecond = _props.audioBitsPerSecond,
            mimeType = _props.mimeType;

        var canvas = this.visualizerRef;
        var canvasCtx = canvas.getContext("2d");
        var options = { audioBitsPerSecond: audioBitsPerSecond, mimeType: mimeType };

        this.audioContext = new AudioContext();

        if (audioElem) {
            this.audioPlayer = new AudioPlayer(audioElem, this.audioContext);
        } else {
            this.microphoneRecorder = new MicrophoneRecorder(onStart, onStop, onData, options, this.audioContext);
        }

        this.setState({ canvas: canvas, canvasCtx: canvasCtx }, function () {
            return _this2.visualize();
        });
    };

    ReactMicRecord.prototype.componentWillUnmount = function componentWillUnmount() {
        if (this.microphoneRecorder) {
            this.microphoneRecorder.unMount();
            this.clear();
        }
    };

    ReactMicRecord.prototype.visualize = function visualize() {
        var _props2 = this.props,
            backgroundColor = _props2.backgroundColor,
            strokeColor = _props2.strokeColor,
            width = _props2.width,
            height = _props2.height,
            visualSetting = _props2.visualSetting;
        var _state = this.state,
            canvas = _state.canvas,
            canvasCtx = _state.canvasCtx;


        this.visualizer = new Visualizer(this.audioContext, canvasCtx, canvas, width, height, backgroundColor, strokeColor);

        if (visualSetting === 'sinewave') {
            this.visualizer.visualizeSineWave();
        } else if (visualSetting === 'frequencyBars') {
            this.visualizer.visualizeFrequencyBars();
        }
    };

    ReactMicRecord.prototype.clear = function clear() {
        var _state2 = this.state,
            canvasCtx = _state2.canvasCtx,
            width = _state2.width,
            height = _state2.height;

        canvasCtx.clearRect(0, 0, width, height);
    };

    ReactMicRecord.prototype.render = function render() {
        var _this3 = this;

        var _props3 = this.props,
            record = _props3.record,
            width = _props3.width,
            height = _props3.height,
            className = _props3.className;


        if (record) {
            if (this.microphoneRecorder) {
                this.microphoneRecorder.startRecording();
                this.visualize();
            }
        } else {
            if (this.microphoneRecorder) {
                this.microphoneRecorder.stopRecording();
                this.clear();
            }
        }

        return React.createElement('canvas', { ref: function ref(c) {
                return _this3.visualizerRef = c;
            }, height: height, width: width, className: className });
    };

    return ReactMicRecord;
}(React.Component), _class.defaultProps = {
    backgroundColor: 'rgba(255, 255, 255, 0.5)',
    strokeColor: '#000000',
    className: 'visualizer',
    audioBitsPerSecond: 128000,
    mimeType: 'audio/webm;codecs=opus',
    record: false,
    width: 640,
    height: 100,
    visualSetting: 'sinewave'
}, _temp);
export { ReactMicRecord as default };