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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.videomodule = { |
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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('video#player'); |
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cm.playerDOM = document.querySelector('video#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 = 'video'; |
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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 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 upload button is not shown. |
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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 video 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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var btnLabel = M.util.get_string('recordingfailed', 'atto_recordrtc'); |
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var treatAsStopped = function() { |
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commonConfig.onMediaStopped(btnLabel); |
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}; |
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// Handle getUserMedia-thrown errors. |
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// After alert, proceed to treat as stopped recording, or close dialogue. |
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switch (error.name) { |
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case 'AbortError': |
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cm.show_alert('gumabort', treatAsStopped); |
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break; |
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case 'NotAllowedError': |
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cm.show_alert('gumnotallowed', treatAsStopped); |
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break; |
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case 'NotFoundError': |
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cm.show_alert('gumnotfound', treatAsStopped); |
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break; |
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case 'NotReadableError': |
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cm.show_alert('gumnotreadable', treatAsStopped); |
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break; |
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case 'OverConstrainedError': |
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cm.show_alert('gumoverconstrained', treatAsStopped); |
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break; |
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case 'SecurityError': |
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cm.show_alert('gumsecurity', function() { |
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cm.editorScope.closeDialogue(cm.editorScope); |
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}); |
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break; |
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case 'TypeError': |
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cm.show_alert('gumtype', treatAsStopped); |
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break; |
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default: |
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break; |
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} |
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} |
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}; |
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// Show video tag without controls to view webcam stream. |
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cm.player.ancestor().ancestor().removeClass('hide'); |
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cm.player.set('controls', false); |
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// Capture audio+video stream from webcam/microphone. |
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M.atto_recordrtc.videomodule.capture_audio_video(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.videomodule.stop_recording(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+video stream from microphone/webcam. |
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capture_audio_video: 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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video: { |
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width: {ideal: 640}, |
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height: {ideal: 480} |
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} |
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}, |
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// Success callback. |
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function(audioVideoStream) { |
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// Set video player source to microphone+webcam stream, and play it back as it's recording. |
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cm.playerDOM.srcObject = audioVideoStream; |
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cm.playerDOM.play(); |
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config.onMediaCaptured(audioVideoStream); |
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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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stop_recording: 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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// Set source of video player. |
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var blob = new window.Blob(cm.chunks, {type: cm.mediaRecorder.mimeType}); |
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cm.player.set('src', window.URL.createObjectURL(blob)); |
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// Enable controls for video player, and unmute. |
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cm.player.set('muted', false); |
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cm.player.set('controls', true); |
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// Show upload button. |
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cm.uploadBtn.ancestor().ancestor().removeClass('hide'); |
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cm.uploadBtn.set('textContent', M.util.get_string('attachrecording', 'atto_recordrtc')); |
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cm.uploadBtn.set('disabled', false); |
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// Handle when upload button is clicked. |
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cm.uploadBtn.on('click', function() { |
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// Trigger error if no recording has been made. |
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if (!cm.player.get('src') || cm.chunks === []) { |
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cm.show_alert('norecordingfound'); |
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} else { |
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cm.uploadBtn.set('disabled', true); |
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// Upload recording to server. |
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cm.upload_to_server(cm.recType, function(progress, fileURLOrError) { |
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if (progress === 'ended') { // Insert annotation in text. |
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cm.uploadBtn.set('disabled', false); |
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cm.insert_annotation(cm.recType, fileURLOrError); |
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} else if (progress === 'upload-failed') { // Show error message in upload button. |
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cm.uploadBtn.set('disabled', false); |
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cm.uploadBtn.set('textContent', |
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M.util.get_string('uploadfailed', 'atto_recordrtc') + ' ' + fileURLOrError); |
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} else if (progress === 'upload-failed-404') { // 404 error = File too large in Moodle. |
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cm.uploadBtn.set('disabled', false); |
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cm.uploadBtn.set('textContent', M.util.get_string('uploadfailed404', 'atto_recordrtc')); |
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} else if (progress === 'upload-aborted') { |
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cm.uploadBtn.set('disabled', false); |
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cm.uploadBtn.set('textContent', |
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M.util.get_string('uploadaborted', 'atto_recordrtc') + ' ' + fileURLOrError); |
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} else { |
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cm.uploadBtn.set('textContent', progress); |
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} |
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}); |
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} |
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}); |
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} |
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}; |
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jacobprudhomme /
moodle-atto_recordrtc
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