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// This file is part of Moodle - http://moodle.org/ |
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// |
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// Moodle is free software: you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// Moodle is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>. |
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// |
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/** |
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* Atto recordrtc library functions |
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* |
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* @package atto_recordrtc |
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* @author Jesus Federico (jesus [at] blindsidenetworks [dt] com) |
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* @author Jacob Prud'homme (jacob [dt] prudhomme [at] blindsidenetworks [dt] com) |
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* @copyright 2017 Blindside Networks Inc. |
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
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*/ |
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// JSHint directives. |
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/*jshint es5: true */ |
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/*jshint onevar: false */ |
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/*jshint shadow: true */ |
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/*global M */ |
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// Scrutinizer CI directives. |
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/** global: M */ |
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/** global: Y */ |
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View Code Duplication |
M.atto_recordrtc = M.atto_recordrtc || {}; |
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// Shorten access to M.atto_recordrtc.commonmodule namespace. |
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var cm = M.atto_recordrtc.commonmodule; |
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M.atto_recordrtc.audiomodule = { |
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init: function(scope) { |
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// Assignment of global variables. |
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cm.editorScope = scope; // Allows access to the editor's "this" context. |
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cm.alertWarning = Y.one('div#alert-warning'); |
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cm.alertDanger = Y.one('div#alert-danger'); |
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cm.player = Y.one('audio#player'); |
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cm.playerDOM = document.querySelector('audio#player'); |
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cm.startStopBtn = Y.one('button#start-stop'); |
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cm.uploadBtn = Y.one('button#upload'); |
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cm.recType = 'audio'; |
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cm.olderMoodle = scope.get('oldermoodle'); |
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// Extract the numbers from the string, and convert to bytes. |
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cm.maxUploadSize = window.parseInt(scope.get('maxrecsize').match(/\d+/)[0], 10) * Math.pow(1024, 2); |
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// Show alert and close plugin if WebRTC is not supported. |
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cm.check_has_gum(); |
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// Show alert and redirect user if connection is not secure. |
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cm.check_secure(); |
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// Show alert if using non-ideal browser. |
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cm.check_browser(); |
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// Run when user clicks on "record" button. |
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cm.startStopBtn.on('click', function() { |
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cm.startStopBtn.set('disabled', true); |
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// If button is displaying "Start Recording" or "Record Again". |
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if ((cm.startStopBtn.get('textContent') === M.util.get_string('startrecording', 'atto_recordrtc')) || |
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(cm.startStopBtn.get('textContent') === M.util.get_string('recordagain', 'atto_recordrtc')) || |
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(cm.startStopBtn.get('textContent') === M.util.get_string('recordingfailed', 'atto_recordrtc'))) { |
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// Make sure the audio player and upload button are not shown. |
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cm.player.ancestor().ancestor().addClass('hide'); |
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cm.uploadBtn.ancestor().ancestor().addClass('hide'); |
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// Change look of recording button. |
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if (!cm.olderMoodle) { |
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cm.startStopBtn.replaceClass('btn-outline-danger', 'btn-danger'); |
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} |
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// Empty the array containing the previously recorded chunks. |
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cm.chunks = []; |
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cm.blobSize = 0; |
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// Initialize common configurations. |
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var commonConfig = { |
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// When the stream is captured from the microphone/webcam. |
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onMediaCaptured: function(stream) { |
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// Make audio stream available at a higher level by making it a property of the common module. |
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cm.stream = stream; |
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cm.start_recording(cm.recType, cm.stream); |
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}, |
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// Revert button to "Record Again" when recording is stopped. |
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onMediaStopped: function(btnLabel) { |
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cm.startStopBtn.set('textContent', btnLabel); |
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cm.startStopBtn.set('disabled', false); |
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if (!cm.olderMoodle) { |
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cm.startStopBtn.replaceClass('btn-danger', 'btn-outline-danger'); |
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} |
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}, |
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// Handle recording errors. |
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onMediaCapturingFailed: function(error) { |
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cm.handle_gum_errors(error, commonConfig); |
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} |
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}; |
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// Capture audio stream from microphone. |
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M.atto_recordrtc.audiomodule.capture_audio(commonConfig); |
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} else { // If button is displaying "Stop Recording". |
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// First of all clears the countdownTicker. |
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window.clearInterval(cm.countdownTicker); |
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// Disable "Record Again" button for 1s to allow background processing (closing streams). |
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window.setTimeout(function() { |
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cm.startStopBtn.set('disabled', false); |
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}, 1000); |
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// Stop recording. |
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M.atto_recordrtc.audiomodule.stopRecording(cm.stream); |
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// Change button to offer to record again. |
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cm.startStopBtn.set('textContent', M.util.get_string('recordagain', 'atto_recordrtc')); |
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if (!cm.olderMoodle) { |
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cm.startStopBtn.replaceClass('btn-danger', 'btn-outline-danger'); |
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} |
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} |
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}); |
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}, |
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// Setup to get audio stream from microphone. |
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capture_audio: function(config) { |
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cm.capture_user_media( |
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// Media constraints. |
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{ |
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audio: true |
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}, |
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// Success callback. |
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function(audioStream) { |
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// Set audio player source to microphone stream. |
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cm.playerDOM.srcObject = audioStream; |
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config.onMediaCaptured(audioStream); |
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}, |
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// Error callback. |
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function(error) { |
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config.onMediaCapturingFailed(error); |
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} |
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); |
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}, |
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stopRecording: function(stream) { |
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// Stop recording microphone stream. |
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cm.mediaRecorder.stop(); |
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// Stop each individual MediaTrack. |
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stream.getTracks().forEach(function(track) { |
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track.stop(); |
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}); |
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} |
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}; |
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blindsidenetworks /
moodle-atto_recordrtc
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