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/** @namespace H5P */ H5P.VideoPanopto = (function ($) { /** * Panopto video player for H5P. * * @class * @param {Array} sources Video files to use * @param {Object} options Settings for the player * @param {Object} l10n Localization strings */ function Panopto(sources, options, l10n) { var self = this; var player; var playbackRate = 1; var id = 'h5p-panopto-' + numInstances; numInstances++; var $wrapper = $('<div/>'); var $placeholder = $('<div/>', { id: id, html: '<div>' + l10n.loading + '</div>' }).appendTo($wrapper); /** * Use the Panopto API to create a new player * * @private */ var create = function () { if (!$placeholder.is(':visible') || player !== undefined) { return; } if (window.EmbedApi === undefined) { // Load API first loadAPI(create); return; } var width = $wrapper.width(); if (width < 200) { width = 200; } const videoId = getId(sources[0].path); player = new EmbedApi(id, { width: width, height: width * (9/16), serverName: videoId[0], sessionId: videoId[1], videoParams: { // Optional interactivity: 'none', showtitle: false, autohide: true, offerviewer: false, autoplay: !!options.autoplay, showbrand: false, start: 0, hideoverlay: !options.controls, }, events: { onIframeReady: function () { $placeholder.children(0).text(''); player.loadVideo(); }, onReady: function () { self.trigger('loaded'); if (player.hasCaptions()) { const captions = []; const captionTracks = player.getCaptionTracks(); for (trackIndex in captionTracks) { captions.push(new H5P.Video.LabelValue(captionTracks[trackIndex], trackIndex)); } // Select active track currentTrack = player.getSelectedCaptionTrack(); currentTrack = captions[currentTrack] ? captions[currentTrack] : null; self.trigger('captions', captions); } self.pause(); }, onStateChange: function (state) { // TODO: Playback rate fix for IE11? if (state > -1 && state < 4) { self.trigger('stateChange', state); } }, onPlaybackRateChange: function () { self.trigger('playbackRateChange', self.getPlaybackRate()); }, onError: function () { self.trigger('error', l10n.unknownError); }, onLoginShown: function () { $placeholder.children().first().remove(); // Remove loading message self.trigger('loaded'); // Resize parent } } }); }; /** * Indicates if the video must be clicked for it to start playing. * This is always true for Panopto since all videos auto play. * * @public */ self.pressToPlay = true; /** * Appends the video player to the DOM. * * @public * @param {jQuery} $container */ self.appendTo = function ($container) { $container.addClass('h5p-panopto').append($wrapper); create(); }; /** * Get list of available qualities. Not available until after play. * * @public * @returns {Array} */ self.getQualities = function () { // Not available for Panopto }; /** * Get current playback quality. Not available until after play. * * @public * @returns {String} */ self.getQuality = function () { // Not available for Panopto }; /** * Set current playback quality. Not available until after play. * Listen to event "qualityChange" to check if successful. * * @public * @params {String} [quality] */ self.setQuality = function (quality) { // Not available for Panopto }; /** * Start the video. * * @public */ self.play = function () { if (!player || !player.playVideo) { return; } player.playVideo(); }; /** * Pause the video. * * @public */ self.pause = function () { if (!player || !player.pauseVideo) { return; } try { player.pauseVideo(); } catch (err) { // Swallow Panopto throwing an error. This has been seen in the authoring // tool if Panopto has been used inside Iv inside CP } }; /** * Seek video to given time. * * @public * @param {Number} time */ self.seek = function (time) { if (!player || !player.seekTo) { return; } player.seekTo(time); }; /** * Get elapsed time since video beginning. * * @public * @returns {Number} */ self.getCurrentTime = function () { if (!player || !player.getCurrentTime) { return; } return player.getCurrentTime(); }; /** * Get total video duration time. * * @public * @returns {Number} */ self.getDuration = function () { if (!player || !player.getDuration) { return; } return player.getDuration(); }; /** * Get percentage of video that is buffered. * * @public * @returns {Number} Between 0 and 100 */ self.getBuffered = function () { // Not available for Panopto }; /** * Turn off video sound. * * @public */ self.mute = function () { if (!player || !player.muteVideo) { return; } player.muteVideo(); }; /** * Turn on video sound. * * @public */ self.unMute = function () { if (!player || !player.unmuteVideo) { return; } player.unmuteVideo(); }; /** * Check if video sound is turned on or off. * * @public * @returns {Boolean} */ self.isMuted = function () { if (!player || !player.isMuted) { return; } return player.isMuted(); }; /** * Return the video sound level. * * @public * @returns {Number} Between 0 and 100. */ self.getVolume = function () { if (!player || !player.getVolume) { return; } return player.getVolume() * 100; }; /** * Set video sound level. * * @public * @param {Number} level Between 0 and 100. */ self.setVolume = function (level) { if (!player || !player.setVolume) { return; } player.setVolume(level/100); }; /** * Get list of available playback rates. * * @public * @returns {Array} available playback rates */ self.getPlaybackRates = function () { return [0.25, 0.5, 1, 1.25, 1.5, 2]; }; /** * Get current playback rate. * * @public * @returns {Number} such as 0.25, 0.5, 1, 1.25, 1.5 and 2 */ self.getPlaybackRate = function () { if (!player || !player.getPlaybackRate) { return; } return player.getPlaybackRate(); }; /** * Set current playback rate. * Listen to event "playbackRateChange" to check if successful. * * @public * @params {Number} suggested rate that may be rounded to supported values */ self.setPlaybackRate = function (newPlaybackRate) { if (!player || !player.setPlaybackRate) { return; } player.setPlaybackRate(newPlaybackRate); }; /** * Set current captions track. * * @param {H5P.Video.LabelValue} Captions track to show during playback */ self.setCaptionsTrack = function (track) { if (!track) { console.log('Disable captions'); player.disableCaptions(); currentTrack = null; } else { console.log('Set captions', track.value); player.enableCaptions(track.value + ''); currentTrack = track; } }; /** * Figure out which captions track is currently used. * * @return {H5P.Video.LabelValue} Captions track */ self.getCaptionsTrack = function () { return currentTrack; // No function for getting active caption track? }; // Respond to resize events by setting the player size. self.on('resize', function () { if (!$wrapper.is(':visible')) { return; } if (!player) { // Player isn't created yet. Try again. create(); return; } // Use as much space as possible $wrapper.css({ width: '100%', height: '100%' }); var width = $wrapper[0].clientWidth; var height = options.fit ? $wrapper[0].clientHeight : (width * (9/16)); // Set size $wrapper.css({ width: width + 'px', height: height + 'px' }); const $iframe = $placeholder.children('iframe'); if ($iframe.length) { $iframe.attr('width', width); $iframe.attr('height', height); } }); let currentTrack; } /** * Check to see if we can play any of the given sources. * * @public * @static * @param {Array} sources * @returns {Boolean} */ Panopto.canPlay = function (sources) { return getId(sources[0].path); }; /** * Find id of YouTube video from given URL. * * @private * @param {String} url * @returns {String} Panopto video identifier */ var getId = function (url) { const matches = url.match(/^[^\/]+:\/\/([^\/]*panopto\.[^\/]+)\/Panopto\/.+\?id=(.+)$/); if (matches && matches.length === 3) { return [matches[1], matches[2]]; } }; /** * Load the IFrame Player API asynchronously. */ var loadAPI = function (loaded) { if (window.onPanoptoEmbedApiReady !== undefined) { // Someone else is loading, hook in var original = window.onPanoptoEmbedApiReady; window.onPanoptoEmbedApiReady = function (id) { loaded(id); original(id); }; } else { // Load the API our self var tag = document.createElement('script'); tag.src = 'https://developers.panopto.com/scripts/embedapi.min.js'; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); window.onPanoptoEmbedApiReady = loaded; } }; /** @private */ var numInstances = 0; return Panopto; })(H5P.jQuery); // Register video handler H5P.videoHandlers = H5P.videoHandlers || []; H5P.videoHandlers.push(H5P.VideoPanopto);
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