Current File : /home/vacivi36/ava/lib/editor/atto/plugins/recordrtc/yui/src/recording/js/videomodule.js
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
//
/**
* Atto recordrtc library functions
*
* @package atto_recordrtc
* @author Jesus Federico (jesus [at] blindsidenetworks [dt] com)
* @author Jacob Prud'homme (jacob [dt] prudhomme [at] blindsidenetworks [dt] com)
* @copyright 2017 Blindside Networks Inc.
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
// ESLint directives.
/* eslint-disable camelcase, spaced-comment */
// Scrutinizer CI directives.
/** global: M */
/** global: Y */
M.atto_recordrtc = M.atto_recordrtc || {};
// Shorten access to module namespaces.
var cm = M.atto_recordrtc.commonmodule,
am = M.atto_recordrtc.abstractmodule,
ccm = M.atto_recordrtc.compatcheckmodule;
M.atto_recordrtc.videomodule = {
init: function(scope) {
// Assignment of global variables.
cm.editorScope = scope; // Allows access to the editor's "this" context.
cm.alertWarning = Y.one('div#alert-warning');
cm.alertDanger = Y.one('div#alert-danger');
cm.player = Y.one('video#player');
cm.playerDOM = document.querySelector('video#player');
cm.startStopBtn = Y.one('button#start-stop');
cm.uploadBtn = Y.one('button#upload');
cm.recType = 'video';
cm.maxUploadSize = scope.get('maxrecsize');
// Show alert and close plugin if WebRTC is not supported.
ccm.check_has_gum();
// Show alert and redirect user if connection is not secure.
ccm.check_secure();
// Run when user clicks on "record" button.
cm.startStopBtn.on('click', function() {
cm.startStopBtn.set('disabled', true);
// If button is displaying "Start Recording" or "Record Again".
if ((cm.startStopBtn.get('textContent') === M.util.get_string('startrecording', 'atto_recordrtc')) ||
(cm.startStopBtn.get('textContent') === M.util.get_string('recordagain', 'atto_recordrtc')) ||
(cm.startStopBtn.get('textContent') === M.util.get_string('recordingfailed', 'atto_recordrtc'))) {
// Make sure the upload button is not shown.
cm.uploadBtn.ancestor().ancestor().addClass('hide');
// Change look of recording button.
cm.startStopBtn.replaceClass('btn-outline-danger', 'btn-danger');
// Empty the array containing the previously recorded chunks.
cm.chunks = [];
cm.blobSize = 0;
cm.uploadBtn.detach('click');
// Initialize common configurations.
var commonConfig = {
// When the stream is captured from the microphone/webcam.
onMediaCaptured: function(stream) {
// Make video stream available at a higher level by making it a property of the common module.
cm.stream = stream;
cm.start_recording(cm.recType, cm.stream);
},
// Revert button to "Record Again" when recording is stopped.
onMediaStopped: function(btnLabel) {
cm.startStopBtn.set('textContent', btnLabel);
cm.startStopBtn.set('disabled', false);
cm.startStopBtn.replaceClass('btn-danger', 'btn-outline-danger');
},
// Handle recording errors.
onMediaCapturingFailed: function(error) {
am.handle_gum_errors(error, commonConfig);
}
};
// Show video tag without controls to view webcam stream.
cm.player.ancestor().ancestor().removeClass('hide');
cm.player.set('controls', false);
// Capture audio+video stream from webcam/microphone.
M.atto_recordrtc.videomodule.capture_audio_video(commonConfig);
} else { // If button is displaying "Stop Recording".
// First of all clears the countdownTicker.
window.clearInterval(cm.countdownTicker);
// Disable "Record Again" button for 1s to allow background processing (closing streams).
window.setTimeout(function() {
cm.startStopBtn.set('disabled', false);
}, 1000);
// Stop recording.
cm.stop_recording(cm.stream);
// Change button to offer to record again.
cm.startStopBtn.set('textContent', M.util.get_string('recordagain', 'atto_recordrtc'));
cm.startStopBtn.replaceClass('btn-danger', 'btn-outline-danger');
}
// Get dialogue centered.
cm.editorScope.getDialogue().centered();
});
},
// Setup to get audio+video stream from microphone/webcam.
capture_audio_video: function(config) {
cm.capture_user_media(
// Media constraints.
{
audio: true,
video: {
width: {ideal: 640},
height: {ideal: 480}
}
},
// Success callback.
function(audioVideoStream) {
// Set video player source to microphone+webcam stream, and play it back as it's recording.
cm.playerDOM.srcObject = audioVideoStream;
cm.playerDOM.play();
config.onMediaCaptured(audioVideoStream);
},
// Error callback.
function(error) {
config.onMediaCapturingFailed(error);
}
);
}
};
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