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105 lines
2.9 KiB
JavaScript
105 lines
2.9 KiB
JavaScript
(function() {
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'use strict';
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window.Whisper = window.Whisper || {};
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Whisper.RecorderView = Whisper.View.extend({
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className: 'recorder clearfix',
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templateName: 'recorder',
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initialize: function() {
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this.startTime = Date.now();
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this.interval = setInterval(this.updateTime.bind(this), 1000);
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this.start();
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},
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events: {
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'click .close': 'close',
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'click .finish': 'finish',
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close: 'close',
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},
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updateTime: function() {
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var duration = moment.duration(Date.now() - this.startTime, 'ms');
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var minutes = '' + Math.trunc(duration.asMinutes());
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var seconds = '' + duration.seconds();
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if (seconds.length < 2) {
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seconds = '0' + seconds;
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}
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this.$('.time').text(minutes + ':' + seconds);
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},
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close: function() {
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// Note: the 'close' event can be triggered by InboxView, when the user clicks
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// anywhere outside the recording pane.
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if (this.recorder.isRecording()) {
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this.recorder.cancelRecording();
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}
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this.recorder = null;
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if (this.interval) {
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clearInterval(this.interval);
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}
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this.interval = null;
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if (this.source) {
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this.source.disconnect();
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}
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this.source = null;
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if (this.context) {
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this.context.close().then(function() {
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console.log('audio context closed');
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});
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}
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this.context = null;
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this.remove();
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this.trigger('closed');
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},
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finish: function() {
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this.recorder.finishRecording();
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this.close();
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},
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handleBlob: function(recorder, blob) {
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if (blob) {
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this.trigger('send', blob);
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}
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},
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start: function() {
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this.context = new AudioContext();
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this.input = this.context.createGain();
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this.recorder = new WebAudioRecorder(this.input, {
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encoding: 'mp3',
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workerDir: 'js/', // must end with slash
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});
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this.recorder.onComplete = this.handleBlob.bind(this);
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this.recorder.onError = this.onError;
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navigator.webkitGetUserMedia(
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{ audio: true },
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function(stream) {
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this.source = this.context.createMediaStreamSource(stream);
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this.source.connect(this.input);
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}.bind(this),
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this.onError.bind(this)
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);
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this.recorder.startRecording();
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},
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onError: function(error) {
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// Protect against out-of-band errors, which can happen if the user revokes media
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// permissions after successfully accessing the microphone.
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if (!this.recorder) {
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return;
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}
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this.close();
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if (error && error.name === 'PermissionDeniedError') {
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console.log('RecorderView.onError: Microphone access is not allowed!');
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window.showPermissionsPopup();
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} else {
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console.log(
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'RecorderView.onError:',
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error && error.stack ? error.stack : error
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);
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}
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},
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});
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})();
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