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main.js
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/*! @license
* Shaka Player
* Copyright 2016 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
goog.provide('shakaDemo.Main');
goog.require('ShakaDemoAssetInfo');
goog.require('goog.asserts');
goog.require('shakaDemo.CloseButton');
goog.require('shakaDemo.Utils');
goog.require('shakaDemo.Visualizer');
goog.require('shakaDemo.VisualizerButton');
/**
* Shaka Player demo, main section.
* This controls the header and the footer, and contains all methods that should
* be shared by multiple page layouts (loading assets, setting/checking
* configuration, etc).
*/
shakaDemo.Main = class {
/** */
constructor() {
/** @private {HTMLVideoElement} */
this.video_ = null;
/** @private {HTMLElement} */
this.container_ = null;
/** @private {shaka.Player} */
this.player_ = null;
/** @type {?ShakaDemoAssetInfo} */
this.selectedAsset = null;
/** @type {shaka.ui.Localization} */
this.localization_ = null;
/**
* The configuration asked for by the user. I.e., not from the asset.
* @private {shaka.extern.PlayerConfiguration}
*/
this.desiredConfig_;
/** @private {shaka.extern.PlayerConfiguration} */
this.defaultConfig_;
/** @private {boolean} */
this.fullyLoaded_ = false;
/** @private {?shaka.ui.Controls} */
this.controls_ = null;
/** @private {?Array<shaka.extern.StoredContent>} */
this.initialStoredList_;
/** @private {boolean} */
this.trickPlayControlsEnabled_ = false;
/** @private {boolean} */
this.customContextMenu_ = false;
/** @private {string} */
this.watermarkText_ = '';
/** @private {boolean} */
this.nativeControlsEnabled_ = false;
/** @private {shaka.extern.SupportType} */
this.support_;
/** @private {string} */
this.uiLocale_ = '';
/** @private {boolean} */
this.noInput_ = false;
/** @private {!HTMLAnchorElement} */
this.errorDisplayLink_ = /** @type {!HTMLAnchorElement} */(
document.getElementById('error-display-link'));
/** @private {?number} */
this.currentErrorSeverity_ = null;
// Override the icon for the MDL library's menu button.
// eslint-disable-next-line no-restricted-syntax
MaterialLayout.prototype.Constant_.MENU_ICON = 'settings';
/** @private {?shakaDemo.Visualizer} */
this.visualizer_ = null;
}
/**
* This function contains the steps of initialization that should be followed
* whether or not the demo successfully set up.
* @private
*/
initCommon_() {
// Display uncaught exceptions. Note that this doesn't seem to work in IE.
// See shakaDemo.Main.initWrapper for a failsafe that works for init-time
// errors on IE.
window.addEventListener('error', (event) => {
const errorEvent = /** @type {!ErrorEvent} */(event);
// Exception to the exceptions we catch: ChromeVox (screen reader) always
// throws an error as of Chrome 73. Screen these out since they are
// unrelated to our application and we can't control them.
if (errorEvent.message.includes('cvox.Api')) {
return;
}
this.onError_(/** @type {!shaka.util.Error} */ (errorEvent.error));
});
// Display unhandled rejections.
window.addEventListener('unhandledrejection', (event) => {
const rejectionEvent = /** @type {!PromiseRejectionEvent} */(event);
const message =
`Unhandled rejection in promise: ${rejectionEvent.reason}`;
console.error('unhandledrejection', rejectionEvent.reason,
rejectionEvent.promise);
this.handleError_(shaka.util.Error.Severity.CRITICAL, message, '');
});
// Set up event listeners.
document.getElementById('error-display-close-button').addEventListener(
'click', (event) => this.closeError_());
// Set up version strings in the appropriate divs.
this.setUpVersionStrings_();
}
/**
* Set up the application with errors to show that load failed.
* This does not dispatch the shaka-main-loaded event, so it will not cause
* the nav bar buttons to be set up.
* @param {!shaka.ui.Overlay.FailReasonCode} reasonCode
*/
initFailed(reasonCode) {
this.initCommon_();
// Set up version links, so the user can switch to compiled mode if
// necessary.
this.makeVersionLinks_();
const errorCloseButton =
document.getElementById('error-display-close-button');
errorCloseButton.style.display = 'none';
// Update the componentHandler, to account for any new MDL elements added.
componentHandler.upgradeDom();
// Disable elements that should not be used.
const elementsToDisable = [];
const disableClass = 'should-disable-on-fail';
for (const element of document.getElementsByClassName(disableClass)) {
elementsToDisable.push(element);
}
// The hamburger menu close button is added programmatically by MDL, and
// thus isn't given our 'disableonfail' class.
for (const element of document.getElementsByClassName(
'mdl-layout__drawer-button')) {
elementsToDisable.push(element);
}
for (const element of elementsToDisable) {
element.tabIndex = -1;
element.classList.add('disabled-by-fail');
}
// Process a synthetic error about lack of browser support.
const severity = shaka.util.Error.Severity.CRITICAL;
let href = '';
let message = '';
switch (reasonCode) {
case shaka.ui.Overlay.FailReasonCode.NO_BROWSER_SUPPORT:
message = 'Your browser is not supported!';
href = 'https://github.com/shaka-project/shaka-player#' +
'platform-and-browser-support-matrix';
break;
case shaka.ui.Overlay.FailReasonCode.PLAYER_FAILED_TO_LOAD:
message = 'Shaka Player failed to load! If you are using an adblocker' +
', try switching to compiled mode at the bottom of the page.';
break;
}
this.handleError_(severity, message, href);
}
/**
* Initialize the application.
*/
async init() {
this.initCommon_();
this.support_ = await shaka.Player.probeSupport();
this.video_ =
/** @type {!HTMLVideoElement} */ (document.getElementById('video'));
this.video_.poster = shakaDemo.Main.mainPoster_;
this.container_ = /** @type {!HTMLElement} */(
document.getElementsByClassName('video-container')[0]);
if (navigator.serviceWorker) {
console.debug('Registering service worker.');
// NOTE: This can sometimes hang on iOS 12, so let's not wait for it to
// complete before setting up the app. We don't even use the Promise
// result or react to the registration failure except to log it.
navigator.serviceWorker.register('service_worker.js');
}
// Optionally enter noinput mode. This has to happen before setting up the
// player.
this.noInput_ = this.getParams_().has('noinput');
this.setupPlayer_();
window.addEventListener('hashchange', () => this.hashChanged_());
await this.setupStorage_();
this.setupBugButton_();
if (this.noInput_) {
// Set the page to noInput mode, disabling the header and footer.
const hideClass = 'should-hide-in-no-input-mode';
for (const element of document.getElementsByClassName(hideClass)) {
this.hideElement_(element);
}
const showClass = 'should-show-in-no-input-mode';
for (const element of document.getElementsByClassName(showClass)) {
this.showElement_(element);
}
// Also fullscreen the container.
this.container_.classList.add('no-input-sized');
document.getElementById('video-bar').classList.add('no-input-sized');
} else {
goog.asserts.assert(this.player_, 'Player should exist by now.');
// Make the visualizer element.
const vCanvas = /** @type {!HTMLCanvasElement} */ (
document.getElementById('visualizer-canvas'));
const vDiv = /** @type {!HTMLElement} */ (
document.getElementById('visualizer-div'));
const vControlsDiv = /** @type {!HTMLElement} */ (
document.getElementById('visualizer-controls-div'));
const vScreenshotDiv = /** @type {!HTMLElement} */ (
document.getElementById('visualizer-screenshot-div'));
/** @private {?shakaDemo.Visualizer} */
this.visualizer_ = new shakaDemo.Visualizer(
vCanvas, vDiv, vScreenshotDiv, vControlsDiv, this.video_,
this.player_);
}
this.readHash_();
// The main page is loaded. Dispatch an event, so the various
// configurations will load themselves.
this.dispatchEventWithName_('shaka-main-loaded');
// Wait for one interruptor cycle, so that the tabs have time to load.
// This ensures that, for example, if there is an asset playing at page
// load time, the video will scroll into view second, and the page won't
// scroll away from the video.
await Promise.resolve();
// Update the componentHandler, to account for any new MDL elements added.
componentHandler.upgradeDom();
const asset = this.getLastAssetFromHash_();
this.fullyLoaded_ = true;
this.remakeHash();
if (asset && !this.selectedAsset) {
// If an asset has begun loading in the meantime (for example, due to
// re-joining an existing cast session), don't play this.
this.loadAsset(asset);
}
}
/**
* @param {string} url
* @return {!Promise<string>}
* @private
*/
async loadText_(url) {
const netEngine = new shaka.net.NetworkingEngine();
const retryParams = shaka.net.NetworkingEngine.defaultRetryParameters();
const request = shaka.net.NetworkingEngine.makeRequest([url], retryParams);
const requestType = shaka.net.NetworkingEngine.RequestType.APP;
const operation = netEngine.request(requestType, request);
const response = await operation.promise;
const text = shaka.util.StringUtils.fromUTF8(response.data);
await netEngine.destroy();
return text;
}
/** @private */
async reportBug_() {
// Fetch the special bug template.
let text = await this.loadText_('autoTemplate.txt');
// Fill in what parts of the template we can.
const fillInTemplate = (replaceString, value) => {
text = text.replace(replaceString, value);
};
fillInTemplate('RE:player', shaka.Player.version);
if (this.selectedAsset) {
const uriLines = [];
const addLine = (key, value) => {
uriLines.push(key + '= `' + value + '`');
};
addLine('uri', this.selectedAsset.manifestUri);
if (this.selectedAsset.adTagUri) {
addLine('ad tag uri', this.selectedAsset.adTagUri);
}
if (this.selectedAsset.licenseServers.size) {
const uri = this.selectedAsset.licenseServers.values().next().value;
addLine('license server', uri);
for (const drmSystem of this.selectedAsset.licenseServers.keys()) {
if (!shakaDemo.Main.commonDrmSystems.includes(drmSystem)) {
addLine('drm system', drmSystem);
break;
}
}
}
if (this.selectedAsset.certificateUri) {
addLine('certificate', this.selectedAsset.certificateUri);
}
fillInTemplate('RE:uris', uriLines.join('\n'));
} else {
fillInTemplate('RE:uris', 'No asset');
}
fillInTemplate('RE:browser', navigator.userAgent);
if (this.selectedAsset &&
this.selectedAsset.source == shakaAssets.Source.CUSTOM) {
// This is a custom asset, so add a comment warning about custom assets.
const warning = await this.loadText_('customWarning.txt');
fillInTemplate('RE:customwarning', warning);
} else {
// No need for any warnings. So remove it (and the newline after it).
fillInTemplate('RE:customwarning\n', '');
}
const urlTerms = [];
urlTerms.push('labels=type%3A+bug');
urlTerms.push('body=' + encodeURIComponent(text));
const url = 'https://github.com/shaka-project/shaka-player/issues/new?' +
urlTerms.join('&');
// Navigate to the github issue opening interface, with the
// partially-filled template as a preset body, opening in another tab.
window.open(url, '_blank');
}
/** @private */
setupBugButton_() {
const bugButton = document.getElementById('bug-button');
bugButton.addEventListener('click', () => this.reportBug_());
// The button should be disabled when offline, as we can't report bugs in
// that state.
if (!navigator.onLine) {
bugButton.setAttribute('disabled', '');
}
window.addEventListener('online', () => {
bugButton.removeAttribute('disabled');
});
window.addEventListener('offline', () => {
bugButton.setAttribute('disabled', '');
});
}
/** @private */
configureUI_() {
const video = /** @type {!HTMLVideoElement} */ (this.video_);
const ui = video['ui'];
const uiConfig = ui.getConfiguration();
uiConfig.customContextMenu = this.customContextMenu_;
// Remove any trick play configurations from a previous config.
uiConfig.addSeekBar = true;
uiConfig.controlPanelElements =
uiConfig.controlPanelElements.filter((element) => {
return element != 'rewind' && element != 'fast_forward';
});
if (this.trickPlayControlsEnabled_) {
// Replace the position the play_pause button was at with a full suite of
// trick play controls, including rewind and fast-forward.
const index = uiConfig.controlPanelElements.indexOf('play_pause');
uiConfig.controlPanelElements.splice(
index, 1, 'rewind', 'play_pause', 'fast_forward');
}
if (!uiConfig.controlPanelElements.includes('close')) {
uiConfig.controlPanelElements.push('close');
}
if (!uiConfig.overflowMenuButtons.includes('visualizer')) {
uiConfig.overflowMenuButtons.push('visualizer');
}
ui.configure(uiConfig);
if (this.watermarkText_) {
ui.setTextWatermark(this.watermarkText_);
} else {
ui.removeWatermark();
}
}
/** @private */
setupPlayer_() {
const video = /** @type {!HTMLVideoElement} */ (this.video_);
const ui = video['ui'];
this.player_ = ui.getControls().getPlayer();
if (!this.noInput_) {
// Don't add the close button if in noInput mode; it doesn't make much
// sense to stop playing a video if you can't start playing other videos.
// Register custom controls to the UI.
const closeFactory = new shakaDemo.CloseButton.Factory();
shaka.ui.Controls.registerElement('close', closeFactory);
const visualizerFactory = new shakaDemo.VisualizerButton.Factory();
shaka.ui.OverflowMenu.registerElement('visualizer', visualizerFactory);
// Configure UI.
this.configureUI_();
}
// Add application-level default configs here. These are not the library
// defaults, but they are the application defaults. This will affect the
// default values assigned to UI config elements as well as the decision
// about what values to place in the URL hash.
this.player_.configure(
'manifest.dash.clockSyncUri', 'https://time.akamai.com/?ms&iso');
// Get default config.
this.defaultConfig_ = this.player_.getConfiguration();
this.desiredConfig_ = this.player_.getConfiguration();
const languages = navigator.languages || ['en-us'];
this.configure('preferredAudioLanguage', languages[0]);
this.configure('preferredTextLanguage', languages[0]);
this.uiLocale_ = languages[0];
// TODO(#1591): Support multiple language preferences
const onErrorEvent = (event) => this.onErrorEvent_(event);
this.player_.addEventListener('error', onErrorEvent);
// Listen to events on controls.
this.controls_ = ui.getControls();
this.controls_.addEventListener('error', onErrorEvent);
this.controls_.addEventListener('caststatuschanged', (event) => {
this.onCastStatusChange_(event['newStatus']);
});
this.localization_ = this.controls_.getLocalization();
const drawerCloseButton = document.getElementById('drawer-close-button');
drawerCloseButton.addEventListener('click', () => {
const layout = document.getElementById('main-layout');
layout.MaterialLayout.toggleDrawer();
this.dispatchEventWithName_('shaka-main-drawer-state-change');
this.hideElement_(drawerCloseButton);
});
// Dispatch drawer state change events when the drawer button or obfuscator
// are pressed also.
const drawerButton = document.querySelector('.mdl-layout__drawer-button');
goog.asserts.assert(drawerButton, 'There should be a drawer button.');
const openDrawer = () => {
this.dispatchEventWithName_('shaka-main-drawer-state-change');
this.showElement_(drawerCloseButton);
};
// Listen to both the "click" and "keydown" events on the drawer button,
// since the element is actually a div rather than a button, which means
// that it doesn't fire "click" events when activated by keyboard input.
drawerButton.addEventListener('click', openDrawer);
drawerButton.addEventListener('keydown', (event) => {
const key = (/** @type {!KeyboardEvent} */ (event)).key;
// Ignore "keydown" input for keys that won't trigger the button (i.e.
// anything besides spacebar or enter).
if (key == ' ' || key == 'Spacebar' || key == 'Enter') {
openDrawer();
}
});
const obfuscator = document.querySelector('.mdl-layout__obfuscator');
goog.asserts.assert(obfuscator, 'There should be an obfuscator.');
obfuscator.addEventListener('click', () => {
this.dispatchEventWithName_('shaka-main-drawer-state-change');
this.hideElement_(drawerCloseButton);
});
this.hideElement_(drawerCloseButton);
}
/** @return {boolean} */
getIsDrawerOpen() {
const drawer = document.querySelector('.mdl-layout__drawer');
goog.asserts.assert(drawer, 'There should be a drawer.');
return drawer.classList.contains('is-visible');
}
/**
* Gets a unique storage identifier for an asset.
* @param {!ShakaDemoAssetInfo} asset
* @return {string}
* @private
*/
getIdentifierFromAsset_(asset) {
// Custom assets can't have special characters like [ or ] in their name,
// and none of the default assets will have that in their name, so we can
// be sure that no asset will have [CUSTOM] in its name.
return asset.name +
(asset.source == shakaAssets.Source.CUSTOM ? ' [CUSTOM]' : '');
}
/**
* Creates a storage instance.
* If and only if storage is not available, this will return null.
* These storage instances are meant to be used once and then destroyed, using
* the |Storage.destroy| method.
* @return {?shaka.offline.Storage}
* @private
*/
makeStorageInstance_() {
if (!shaka.offline.Storage.support()) {
return null;
}
const storage = new shaka.offline.Storage();
// Configure the storage instance.
/**
* @param {string} identifier
* @return {?ShakaDemoAssetInfo}
*/
const getAssetWithIdentifier = (identifier) => {
for (const asset of shakaAssets.testAssets) {
if (this.getIdentifierFromAsset_(asset) == identifier) {
return asset;
}
}
if (shakaDemoCustom) {
for (const asset of shakaDemoCustom.assets()) {
if (this.getIdentifierFromAsset_(asset) == identifier) {
return asset;
}
}
}
return null;
};
/**
* @param {shaka.extern.StoredContent} content
* @param {number} progress
*/
const progressCallback = (content, progress) => {
const identifier = content.appMetadata['identifier'];
const asset = getAssetWithIdentifier(identifier);
if (asset) {
asset.storedProgress = progress;
this.dispatchEventWithName_('shaka-main-offline-progress');
}
};
storage.configure(this.desiredConfig_);
storage.configure('offline.progressCallback', progressCallback);
return storage;
}
/**
* Attaches callbacks to an asset so that it can be downloaded online.
* This method does not verify whether storage is or is not possible.
* Also, if an asset has an associated offline version, load it with that
* info.
* @param {!ShakaDemoAssetInfo} asset
*/
setupOfflineSupport(asset) {
if (!this.initialStoredList_) {
// Storage failed to set up, so nothing happened.
return;
}
// If the list of stored content does not contain this asset, then make sure
// that the asset's |storedContent| value is null. Custom assets that were
// once stored might have that object serialized with their other data.
asset.storedContent = null;
for (const storedContent of this.initialStoredList_) {
const identifier = storedContent.appMetadata['identifier'];
if (this.getIdentifierFromAsset_(asset) == identifier) {
asset.storedContent = storedContent;
}
}
asset.storeCallback = async () => {
const storage = this.makeStorageInstance_();
if (!storage) {
return;
}
try {
await this.drmConfiguration_(asset, storage);
const metadata = {
'identifier': this.getIdentifierFromAsset_(asset),
'downloaded': new Date(),
};
asset.storedProgress = 0;
this.dispatchEventWithName_('shaka-main-offline-progress');
const start = Date.now();
const stored = await storage.store(asset.manifestUri, metadata,
asset.mimeType || null, asset.extraThumbnail,
asset.extraText).promise;
const end = Date.now();
console.log('Download time:', end - start);
asset.storedContent = stored;
} catch (error) {
this.onError_(/** @type {!shaka.util.Error} */ (error));
asset.storedContent = null;
}
storage.destroy();
asset.storedProgress = 1;
this.dispatchEventWithName_('shaka-main-offline-progress');
};
asset.unstoreCallback = async () => {
if (asset == this.selectedAsset) {
this.unload();
}
if (asset.storedContent && asset.storedContent.offlineUri) {
const storage = this.makeStorageInstance_();
if (!storage) {
return;
}
try {
asset.storedProgress = 0;
this.dispatchEventWithName_('shaka-main-offline-progress');
await storage.remove(asset.storedContent.offlineUri);
asset.storedContent = null;
} catch (error) {
this.onError_(/** @type {!shaka.util.Error} */ (error));
// Presumably, if deleting the asset fails, it still exists?
}
storage.destroy();
asset.storedProgress = 1;
this.dispatchEventWithName_('shaka-main-offline-progress');
}
};
}
/**
* @return {!Promise}
* @private
*/
async setupStorage_() {
// Load stored asset infos.
const storage = this.makeStorageInstance_();
if (!storage) {
return;
}
try {
this.initialStoredList_ = await storage.list();
} catch (error) {
// If this operation errors, it means that storage (while supported) is
// being held up by some kind of error.
// Log that error, and then pretend that storage is unsupported.
console.error(error);
this.initialStoredList_ = null;
} finally {
storage.destroy();
}
// Setup asset callbacks for storage, for the test assets.
for (const asset of shakaAssets.testAssets) {
if (this.getAssetUnsupportedReason(asset, /* needOffline= */ true)) {
// Don't bother setting up the callbacks.
continue;
}
this.setupOfflineSupport(asset);
}
}
/** @private */
hashChanged_() {
this.readHash_();
this.dispatchEventWithName_('shaka-main-config-change');
}
/**
* Get why the asset is unplayable, if it is unplayable.
*
* @param {!ShakaDemoAssetInfo} asset
* @param {boolean} needOffline True if offline support is required.
* @return {?string} unsupportedReason
* Null if asset is supported.
*/
getAssetUnsupportedReason(asset, needOffline) {
if (needOffline &&
(!shaka.offline.Storage.support() || !this.initialStoredList_)) {
return 'Your browser does not support offline storage.';
}
if (asset.source == shakaAssets.Source.CUSTOM) {
// We can't be sure if custom assets are supported or not. Just assume
// they are.
return null;
}
// Is the asset disabled?
if (asset.disabled) {
return 'This asset is disabled.';
}
if (needOffline && !asset.features.includes(shakaAssets.Feature.OFFLINE)) {
return 'This asset cannot be downloaded.';
}
if (!asset.isClear() && !asset.isAes128()) {
const hasSupportedDRM = asset.drm.some((drm) => {
for (const identifier of shakaAssets.identifiersForKeySystem(drm)) {
if (this.support_.drm[identifier]) {
return true;
}
}
return false;
});
if (!hasSupportedDRM) {
return 'Your browser does not support the required key systems.';
}
if (needOffline) {
const hasSupportedOfflineDRM = asset.drm.some((drm) => {
for (const identifier of shakaAssets.identifiersForKeySystem(drm)) {
// Special case when using clear keys.
if (identifier == 'org.w3.clearkey') {
const licenseServers = asset.getLicenseServers();
if (!licenseServers.has(identifier)) {
return this.support_.drm[identifier];
}
} else if (this.support_.drm[identifier]) {
return this.support_.drm[identifier].persistentState;
}
}
return false;
});
if (!hasSupportedOfflineDRM) {
return 'Your browser does not support offline licenses for the ' +
'required key systems.';
}
}
}
// Does the browser support the asset's manifest type?
if (asset.features.includes(shakaAssets.Feature.DASH) &&
!this.support_.manifest['application/dash+xml']) {
return 'Your browser does not support MPEG-DASH manifests.';
}
if (asset.features.includes(shakaAssets.Feature.HLS) &&
!this.support_.manifest['application/x-mpegurl']) {
return 'Your browser does not support HLS manifests.';
}
if (asset.features.includes(shakaAssets.Feature.MSS) &&
!this.support_.manifest['application/vnd.ms-sstr+xml']) {
return 'Your browser does not support MSS manifests.';
}
// Does the asset contain a playable mime type?
const mimeTypes = [];
if (asset.features.includes(shakaAssets.Feature.WEBM)) {
mimeTypes.push('video/webm');
}
if (asset.features.includes(shakaAssets.Feature.MP4)) {
mimeTypes.push('video/mp4');
}
if (asset.features.includes(shakaAssets.Feature.MP2TS)) {
mimeTypes.push('video/mp2t');
}
if (asset.features.includes(shakaAssets.Feature.CONTAINERLESS)) {
mimeTypes.push('audio/aac');
}
if (asset.features.includes(shakaAssets.Feature.DOLBY_VISION_P5)) {
mimeTypes.push('video/mp4; codecs="dvh1.05.01"');
}
if (asset.features.includes(shakaAssets.Feature.DOLBY_VISION_3D)) {
mimeTypes.push('video/mp4; codecs="dvh1.20.01"');
}
if (asset.features.includes(shakaAssets.Feature.AV1)) {
mimeTypes.push('video/mp4; codecs="av01.0.01M.08"');
}
let hasSupportedMimeType = mimeTypes.some((type) => {
return this.support_.media[type];
});
if (!hasSupportedMimeType &&
!(window.ManagedMediaSource || window.MediaSource) &&
!!navigator.vendor && navigator.vendor.includes('Apple')) {
if (mimeTypes.includes('video/mp4')) {
hasSupportedMimeType = true;
}
if (mimeTypes.includes('video/mp2t')) {
hasSupportedMimeType = true;
}
}
if (!hasSupportedMimeType) {
return 'Your browser does not support the required video format.';
}
return null;
}
/**
* Enable or disable the UI's trick play controls.
*
* @param {boolean} enabled
*/
setTrickPlayControlsEnabled(enabled) {
this.trickPlayControlsEnabled_ = enabled;
// Configure the UI, to add or remove the controls.
this.configureUI_();
this.remakeHash();
}
/**
* Get if the trick play controls are enabled.
*
* @return {boolean} enabled
*/
getTrickPlayControlsEnabled() {
return this.trickPlayControlsEnabled_;
}
/**
* Enable or disable the UI's custom context menu.
*
* @param {boolean} enabled
*/
setCustomContextMenuEnabled(enabled) {
this.customContextMenu_ = enabled;
// Configure the UI, to add or remove the controls.
this.configureUI_();
this.remakeHash();
}
/**
* Get if the UI's custom context menu is enabled.
*
* @return {boolean} enabled
*/
getCustomContextMenuEnabled() {
return this.customContextMenu_;
}
/**
* Set the text for watermark.
*
* @param {string} text
*/
setWatermarkText(text) {
this.watermarkText_ = text;
// Configure the UI, to add or remove the controls.
this.configureUI_();
this.remakeHash();
}
/**
* Get the current text for watermark.
*
* @return {string}
*/
getWatermarkText() {
return this.watermarkText_;
}
/**
* Enable or disable the native controls.
* Goes into effect during the next load.
*
* @param {boolean} enabled
*/
setNativeControlsEnabled(enabled) {
this.nativeControlsEnabled_ = enabled;
this.remakeHash();
}
/**
* Get if the native controls are enabled.
*
* @return {boolean} enabled
*/
getNativeControlsEnabled() {
return this.nativeControlsEnabled_;
}
/** @param {string} locale */
setUILocale(locale) {
this.uiLocale_ = locale;
// Fall back to browser languages after the demo page setting.
const preferredLocales = [locale].concat(navigator.languages);
this.localization_.changeLocale(preferredLocales);
}
/** @return {string} */
getUILocale() {
return this.uiLocale_;
}
/**
* @return {?ShakaDemoAssetInfo}
* @private
*/
getLastAssetFromHash_() {
const params = this.getParams_();
const manifest = params.get('asset');
const assetBase64 = params.get('assetBase64');
if (manifest) {
const adTagUri = params.get('adTagUri');
// See if it's a default asset.
for (const asset of shakaAssets.testAssets) {
if (asset.manifestUri == manifest && asset.adTagUri == adTagUri) {
return asset;
}
}
// See if it's a custom asset saved here.
for (const asset of shakaDemoCustom.assets()) {
if (asset.manifestUri == manifest) {
return asset;
}
}
// Construct a new asset.
const asset = new ShakaDemoAssetInfo(
/* name= */ 'loaded asset',
/* iconUri= */ '',
/* manifestUri= */ manifest,
/* source= */ shakaAssets.Source.CUSTOM);
if (params.has('license')) {
let drmSystems = shakaDemo.Main.commonDrmSystems;
if (params.has('drmSystem')) {
drmSystems = [params.get('drmSystem')];
}
for (const drmSystem of drmSystems) {
asset.addLicenseServer(drmSystem, params.get('license'));
}
}
if (params.has('certificate')) {
asset.addCertificateUri(params.get('certificate'));
}
return asset;
} else if (assetBase64) {
// See if it's a default asset.
for (const asset of shakaAssets.testAssets) {
if (asset.toBase64() == assetBase64) {
return asset;
}
}
// See if it's a custom asset saved here.
for (const asset of shakaDemoCustom.assets()) {
if (asset.toBase64() == assetBase64) {
return asset;
}
}
return ShakaDemoAssetInfo.fromBase64(assetBase64);
}
return null;
}
/** @private */
readHash_() {
const params = this.getParams_();
if (this.player_) {
const readParam = (hashName, configName) => {
if (params.has(hashName)) {
const existing = this.getCurrentConfigValue(configName);
// Translate the param string into a non-string value if appropriate.
// Determine what type the parsed value should be based on the current
// value.
let value = params.get(hashName);
if (typeof existing == 'boolean') {
value = value == 'true';
} else if (typeof existing == 'number') {
value = parseFloat(value);
}
this.configure(configName, value);
}
};
const config = this.player_.getConfiguration();
shakaDemo.Utils.runThroughHashParams(readParam, config);
const advanced = this.getCurrentConfigValue('drm.advanced');
if (advanced) {
for (const drmSystem of shakaDemo.Main.commonDrmSystems) {
if (!advanced[drmSystem]) {
advanced[drmSystem] = shakaDemo.Main.defaultAdvancedDrmConfig();
}
if (params.has('videoRobustness')) {
advanced[drmSystem].videoRobustness =
params.get('videoRobustness').split(',');
}
if (params.has('audioRobustness')) {
advanced[drmSystem].audioRobustness =