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// TinyMCE recordrtc library functions. |
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// @package tinymce_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 2016 onwards, Blindside Networks Inc. |
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// @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later. |
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// ESLint directives. |
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/* global recordrtc, alertWarning, alertDanger, player, playerDOM, startStopBtn, uploadBtn */ |
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/* global recType, maxUploadSize, chunks, blobSize, countdownTicker, mediaRecorder */ |
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/* exported alertWarning, alertDanger, maxUploadSize, chunks, blobSize */ |
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/* eslint-disable camelcase, no-global-assign */ |
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// JSHint directives. |
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/* global alertWarning: true, alertDanger: true, player: true, playerDOM: true, startStopBtn: true */ |
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/* global uploadBtn: true, recType: true, maxUploadSize: true, chunks: true, blobSize: true */ |
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// Scrutinizer CI directives. |
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/** global: M */ |
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/** global: Y */ |
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/** global: recordrtc */ |
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/** global: alertWarning */ |
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/** global: alertDanger */ |
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/** global: blobSize */ |
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/** global: chunks */ |
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/** global: countdownSeconds */ |
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/** global: countdownTicker */ |
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/** global: maxUploadSize */ |
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/** global: mediaRecorder */ |
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/** global: player */ |
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/** global: playerDOM */ |
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/** global: recType */ |
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/** global: startStopBtn */ |
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/** global: uploadBtn */ |
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// This function is initialized from PHP. |
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M.tinymce_recordrtc.view_init = function() { |
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// Assignment of global variables. |
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alertWarning = Y.one('div#alert-warning'); |
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alertDanger = Y.one('div#alert-danger'); |
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player = Y.one('video#player'); |
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playerDOM = document.querySelector('video#player'); |
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startStopBtn = Y.one('button#start-stop'); |
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uploadBtn = Y.one('button#upload'); |
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recType = 'video'; |
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// Extract the numbers from the string, and convert to bytes. |
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maxUploadSize = window.parseInt(recordrtc.maxfilesize.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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M.tinymce_recordrtc.check_has_gum(); |
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// Show alert and redirect user if connection is not secure. |
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M.tinymce_recordrtc.check_secure(); |
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// Show alert if using non-ideal browser. |
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M.tinymce_recordrtc.check_browser(); |
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// Run when user clicks on "record" button. |
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startStopBtn.on('click', function() { |
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startStopBtn.set('disabled', true); |
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// If button is displaying "Start Recording" or "Record Again". |
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if ((startStopBtn.get('textContent') === M.util.get_string('startrecording', 'tinymce_recordrtc')) || |
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(startStopBtn.get('textContent') === M.util.get_string('recordagain', 'tinymce_recordrtc')) || |
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(startStopBtn.get('textContent') === M.util.get_string('recordingfailed', 'tinymce_recordrtc'))) { |
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// Make sure the upload button is not shown. |
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uploadBtn.ancestor().ancestor().addClass('hide'); |
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// Change look of recording button. |
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if (!recordrtc.oldermoodle) { |
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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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chunks = []; |
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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 startStopBtn. |
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startStopBtn.stream = stream; |
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M.tinymce_recordrtc.start_recording(recType, startStopBtn.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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startStopBtn.set('textContent', btnLabel); |
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startStopBtn.set('disabled', false); |
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if (!recordrtc.oldermoodle) { |
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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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M.tinymce_recordrtc.handle_gum_errors(error, commonConfig); |
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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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player.ancestor().ancestor().removeClass('hide'); |
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player.set('controls', false); |
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// Capture audio+video stream from webcam/microphone. |
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M.tinymce_recordrtc.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(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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startStopBtn.set('disabled', false); |
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}, 1000); |
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// Stop recording. |
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M.tinymce_recordrtc.stop_recording(startStopBtn.stream); |
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// Change button to offer to record again. |
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startStopBtn.set('textContent', M.util.get_string('recordagain', 'tinymce_recordrtc')); |
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if (!recordrtc.oldermoodle) { |
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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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M.tinymce_recordrtc.capture_audio_video = function(config) { |
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M.tinymce_recordrtc.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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playerDOM.srcObject = audioVideoStream; |
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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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jacobprudhomme /
moodle-tinymce_recordrtc
