Source: lib/ads/interstitial_ad_manager.js

  1. /*! @license
  2.  * Shaka Player
  3.  * Copyright 2016 Google LLC
  4.  * SPDX-License-Identifier: Apache-2.0
  5.  */
  8. goog.provide('shaka.ads.InterstitialAdManager');
  10. goog.require('goog.asserts');
  11. goog.require('shaka.Player');
  12. goog.require('shaka.ads.InterstitialAd');
  13. goog.require('shaka.ads.InterstitialStaticAd');
  14. goog.require('shaka.ads.Utils');
  15. goog.require('shaka.device.DeviceFactory');
  16. goog.require('shaka.device.IDevice');
  17. goog.require('shaka.log');
  18. goog.require('shaka.media.PreloadManager');
  19. goog.require('shaka.net.NetworkingEngine');
  20. goog.require('shaka.net.NetworkingUtils');
  21. goog.require('shaka.util.Dom');
  22. goog.require('shaka.util.Error');
  23. goog.require('shaka.util.EventManager');
  24. goog.require('shaka.util.FakeEvent');
  25. goog.require('shaka.util.IReleasable');
  26. goog.require('shaka.util.PublicPromise');
  27. goog.require('shaka.util.StringUtils');
  28. goog.require('shaka.util.Timer');
  29. goog.require('shaka.util.TXml');
  32. /**
  33.  * A class responsible for Interstitial ad interactions.
  34.  *
  35.  * @implements {shaka.util.IReleasable}
  36.  */
  37. shaka.ads.InterstitialAdManager = class {
  38.   /**
  39.    * @param {HTMLElement} adContainer
  40.    * @param {shaka.Player} basePlayer
  41.    * @param {HTMLMediaElement} baseVideo
  42.    * @param {function(!shaka.util.FakeEvent)} onEvent
  43.    */
  44.   constructor(adContainer, basePlayer, baseVideo, onEvent) {
  45.     /** @private {?shaka.extern.AdsConfiguration} */
  46.     this.config_ = null;
  48.     /** @private {HTMLElement} */
  49.     this.adContainer_ = adContainer;
  51.     /** @private {shaka.Player} */
  52.     this.basePlayer_ = basePlayer;
  54.     /** @private {HTMLMediaElement} */
  55.     this.baseVideo_ = baseVideo;
  57.     /** @private {?HTMLMediaElement} */
  58.     this.adVideo_ = null;
  60.     /** @private {boolean} */
  61.     this.usingBaseVideo_ = true;
  63.     /** @private {HTMLMediaElement} */
  64.     this.video_ = this.baseVideo_;
  66.     /** @private {function(!shaka.util.FakeEvent)} */
  67.     this.onEvent_ = onEvent;
  69.     /** @private {!Set<string>} */
  70.     this.interstitialIds_ = new Set();
  72.     /** @private {!Set<shaka.extern.AdInterstitial>} */
  73.     this.interstitials_ = new Set();
  75.     /**
  76.      * @private {!Map<shaka.extern.AdInterstitial,
  77.      *                 Promise<?shaka.media.PreloadManager>>}
  78.      */
  79.     this.preloadManagerInterstitials_ = new Map();
  81.     /**
  82.      * @private {!Map<shaka.extern.AdInterstitial, !Array<!HTMLLinkElement>>}
  83.      */
  84.     this.preloadOnDomElements_ = new Map();
  86.     /** @private {shaka.Player} */
  87.     this.player_ = new shaka.Player();
  89.     this.updatePlayerConfig_();
  91.     /** @private {shaka.util.EventManager} */
  92.     this.eventManager_ = new shaka.util.EventManager();
  94.     /** @private {shaka.util.EventManager} */
  95.     this.adEventManager_ = new shaka.util.EventManager();
  97.     /** @private {boolean} */
  98.     this.playingAd_ = false;
  100.     /** @private {?number} */
  101.     this.lastTime_ = null;
  103.     /** @private {?shaka.extern.AdInterstitial} */
  104.     this.lastPlayedAd_ = null;
  106.     /** @private {?shaka.util.Timer} */
  107.     this.playoutLimitTimer_ = null;
  109.     /** @private {?function()} */
  110.     this.lastOnSkip_ = null;
  112.     /** @private {boolean} */
  113.     this.usingListeners_ = false;
  115.     /** @private {number} */
  116.     this.videoCallbackId_ = -1;
  118.     // Note: checkForInterstitials_ and onTimeUpdate_ are defined here because
  119.     // we use it on listener callback, and for unlisten is necessary use the
  120.     // same callback.
  122.     /** @private {function()} */
  123.     this.checkForInterstitials_ = () => {
  124.       if (this.playingAd_ || !this.lastTime_ ||
  125.           this.basePlayer_.isRemotePlayback()) {
  126.         return;
  127.       }
  128.       this.lastTime_ = this.baseVideo_.currentTime;
  129.       const currentInterstitial = this.getCurrentInterstitial_();
  130.       if (currentInterstitial) {
  131.         this.setupAd_(currentInterstitial, /* sequenceLength= */ 1,
  132.             /* adPosition= */ 1, /* initialTime= */ Date.now());
  133.       }
  134.     };
  136.     /** @private {function()} */
  137.     this.onTimeUpdate_ = () => {
  138.       if (this.playingAd_ || this.lastTime_ ||
  139.           this.basePlayer_.isRemotePlayback()) {
  140.         return;
  141.       }
  142.       this.lastTime_ = this.baseVideo_.currentTime;
  143.       const currentInterstitial = this.getCurrentInterstitial_(
  144.           /* needPreRoll= */ true);
  145.       if (currentInterstitial) {
  146.         this.setupAd_(currentInterstitial, /* sequenceLength= */ 1,
  147.             /* adPosition= */ 1, /* initialTime= */ Date.now());
  148.       }
  149.     };
  151.     /** @private {function()} */
  152.     this.onSeeked_ = () => {
  153.       if (this.playingAd_ || !this.lastTime_ ||
  154.           this.basePlayer_.isRemotePlayback()) {
  155.         return;
  156.       }
  157.       const currentTime = this.baseVideo_.currentTime;
  158.       // Remove last played ad when the new time is before the ad time.
  159.       if (this.lastPlayedAd_ &&
  160.           !this.lastPlayedAd_.pre && !this.lastPlayedAd_.post &&
  161.           currentTime < (this.lastPlayedAd_.endTime ||
  162.           this.lastPlayedAd_.startTime)) {
  163.         this.lastPlayedAd_ = null;
  164.       }
  165.     };
  167.     /** @private {shaka.util.Timer} */
  168.     this.timeUpdateTimer_ = new shaka.util.Timer(this.checkForInterstitials_);
  171.     /** @private {shaka.util.Timer} */
  172.     this.pollTimer_ = new shaka.util.Timer(async () => {
  173.       if (this.interstitials_.size && this.lastTime_ != null) {
  174.         const currentLoadMode = this.basePlayer_.getLoadMode();
  175.         if (currentLoadMode == shaka.Player.LoadMode.DESTROYED ||
  176.             currentLoadMode == shaka.Player.LoadMode.NOT_LOADED) {
  177.           return;
  178.         }
  179.         let cuepointsChanged = false;
  180.         const interstitials = Array.from(this.interstitials_);
  181.         const seekRange = this.basePlayer_.seekRange();
  182.         for (const interstitial of interstitials) {
  183.           if (interstitial == this.lastPlayedAd_) {
  184.             continue;
  185.           }
  186.           const comparisonTime = interstitial.endTime || interstitial.startTime;
  187.           if ((seekRange.start - comparisonTime) >= 1) {
  188.             if (this.preloadManagerInterstitials_.has(interstitial)) {
  189.               const preloadManager =
  190.                   // eslint-disable-next-line no-await-in-loop
  191.                   await this.preloadManagerInterstitials_.get(interstitial);
  192.               if (preloadManager) {
  193.                 preloadManager.destroy();
  194.               }
  195.               this.preloadManagerInterstitials_.delete(interstitial);
  196.             }
  197.             this.removePreloadOnDomElements_(interstitial);
  198.             const interstitialId = JSON.stringify(interstitial);
  199.             if (this.interstitialIds_.has(interstitialId)) {
  200.               this.interstitialIds_.delete(interstitialId);
  201.             }
  202.             this.interstitials_.delete(interstitial);
  203.             this.removeEventListeners_();
  204.             if (!interstitial.overlay) {
  205.               cuepointsChanged = true;
  206.             }
  207.           } else {
  208.             const difference = interstitial.startTime - this.lastTime_;
  209.             if (difference > 0 && difference <= 10) {
  210.               if (!this.preloadManagerInterstitials_.has(interstitial) &&
  211.                   this.isPreloadAllowed_(interstitial)) {
  212.                 this.preloadManagerInterstitials_.set(
  213.                     interstitial, this.player_.preload(
  214.                         interstitial.uri,
  215.                         /* startTime= */ null,
  216.                         interstitial.mimeType || undefined));
  217.               }
  218.               this.checkPreloadOnDomElements_(interstitial);
  219.             }
  220.           }
  221.         }
  222.         if (cuepointsChanged) {
  223.           this.cuepointsChanged_();
  224.         }
  225.       }
  226.     });
  228.     this.configure(this.basePlayer_.getConfiguration().ads);
  229.   }
  231.   /**
  232.    * Called by the AdManager to provide an updated configuration any time it
  233.    * changes.
  234.    *
  235.    * @param {shaka.extern.AdsConfiguration} config
  236.    */
  237.   configure(config) {
  238.     this.config_ = config;
  239.     this.determineIfUsingBaseVideo_();
  240.   }
  242.   /**
  243.    * @private
  244.    */
  245.   addEventListeners_() {
  246.     if (this.usingListeners_ || !this.interstitials_.size) {
  247.       return;
  248.     }
  249.     this.eventManager_.listen(
  250.         this.baseVideo_, 'playing', this.onTimeUpdate_);
  251.     this.eventManager_.listen(
  252.         this.baseVideo_, 'timeupdate', this.onTimeUpdate_);
  253.     this.eventManager_.listen(
  254.         this.baseVideo_, 'seeked', this.onSeeked_);
  255.     this.eventManager_.listen(
  256.         this.baseVideo_, 'ended', this.checkForInterstitials_);
  257.     if ('requestVideoFrameCallback' in this.baseVideo_ && !this.isSmartTV_()) {
  258.       const baseVideo = /** @type {!HTMLVideoElement} */ (this.baseVideo_);
  259.       const videoFrameCallback = (now, metadata) => {
  260.         if (this.videoCallbackId_ == -1) {
  261.           return;
  262.         }
  263.         this.checkForInterstitials_();
  264.         // It is necessary to check this again because this callback can be
  265.         // executed in another thread by the browser and we have to be sure
  266.         // again here that we have not cancelled it in the middle of an
  267.         // execution.
  268.         if (this.videoCallbackId_ == -1) {
  269.           return;
  270.         }
  271.         this.videoCallbackId_ =
  272.             baseVideo.requestVideoFrameCallback(videoFrameCallback);
  273.       };
  274.       this.videoCallbackId_ =
  275.           baseVideo.requestVideoFrameCallback(videoFrameCallback);
  276.     } else {
  277.       this.timeUpdateTimer_.tickEvery(/* seconds= */ 0.025);
  278.     }
  280.     if (this.pollTimer_) {
  281.       this.pollTimer_.tickEvery(/* seconds= */ 1); ;
  282.     }
  283.     this.usingListeners_ = true;
  284.   }
  286.   /**
  287.    * @private
  288.    */
  289.   removeEventListeners_() {
  290.     if (!this.usingListeners_ || this.interstitials_.size) {
  291.       return;
  292.     }
  293.     this.eventManager_.unlisten(
  294.         this.baseVideo_, 'playing', this.onTimeUpdate_);
  295.     this.eventManager_.unlisten(
  296.         this.baseVideo_, 'timeupdate', this.onTimeUpdate_);
  297.     this.eventManager_.unlisten(
  298.         this.baseVideo_, 'seeked', this.onSeeked_);
  299.     this.eventManager_.unlisten(
  300.         this.baseVideo_, 'ended', this.checkForInterstitials_);
  301.     if (this.videoCallbackId_ != -1) {
  302.       const baseVideo = /** @type {!HTMLVideoElement} */ (this.baseVideo_);
  303.       baseVideo.cancelVideoFrameCallback(this.videoCallbackId_);
  304.       this.videoCallbackId_ = -1;
  305.     }
  306.     if (this.timeUpdateTimer_) {
  307.       this.timeUpdateTimer_.stop();
  308.     }
  309.     if (this.pollTimer_) {
  310.       this.pollTimer_.stop();
  311.     }
  312.     this.usingListeners_ = false;
  313.   }
  315.   /**
  316.    * @private
  317.    */
  318.   determineIfUsingBaseVideo_() {
  319.     if (!this.adContainer_ || !this.config_ || this.playingAd_) {
  320.       this.usingBaseVideo_ = true;
  321.       return;
  322.     }
  323.     let supportsMultipleMediaElements =
  324.         this.config_.supportsMultipleMediaElements;
  325.     const video = /** @type {HTMLVideoElement} */(this.baseVideo_);
  326.     if (video.webkitSupportsFullscreen && video.webkitDisplayingFullscreen) {
  327.       supportsMultipleMediaElements = false;
  328.     }
  329.     if (this.usingBaseVideo_ != supportsMultipleMediaElements) {
  330.       return;
  331.     }
  332.     this.usingBaseVideo_ = !supportsMultipleMediaElements;
  333.     if (this.usingBaseVideo_) {
  334.       this.video_ = this.baseVideo_;
  335.       if (this.adVideo_) {
  336.         if (this.adVideo_.parentElement) {
  337.           this.adContainer_.removeChild(this.adVideo_);
  338.         }
  339.         this.adVideo_ = null;
  340.       }
  341.     } else {
  342.       if (!this.adVideo_) {
  343.         this.adVideo_ = this.createMediaElement_();
  344.       }
  345.       this.video_ = this.adVideo_;
  346.     }
  347.   }
  350.   /**
  351.    * Resets the Interstitial manager and removes any continuous polling.
  352.    */
  353.   stop() {
  354.     if (this.adEventManager_) {
  355.       this.adEventManager_.removeAll();
  356.     }
  357.     this.interstitialIds_.clear();
  358.     this.interstitials_.clear();
  359.     this.player_.destroyAllPreloads();
  360.     if (this.preloadManagerInterstitials_.size) {
  361.       const values = Array.from(this.preloadManagerInterstitials_.values());
  362.       for (const value of values) {
  363.         if (value) {
  364.           value.then((preloadManager) => {
  365.             if (preloadManager) {
  366.               preloadManager.destroy();
  367.             }
  368.           });
  369.         }
  370.       };
  371.     }
  372.     this.preloadManagerInterstitials_.clear();
  373.     if (this.preloadOnDomElements_.size) {
  374.       const interstitials = Array.from(this.preloadOnDomElements_.keys());
  375.       for (const interstitial of interstitials) {
  376.         this.removePreloadOnDomElements_(interstitial);
  377.       }
  378.     }
  379.     this.preloadOnDomElements_.clear();
  380.     this.player_.detach();
  381.     this.playingAd_ = false;
  382.     this.lastTime_ = null;
  383.     this.lastPlayedAd_ = null;
  384.     this.usingBaseVideo_ = true;
  385.     this.video_ = this.baseVideo_;
  386.     this.adVideo_ = null;
  387.     this.removeBaseStyles_();
  388.     this.removeEventListeners_();
  389.     if (this.adContainer_) {
  390.       shaka.util.Dom.removeAllChildren(this.adContainer_);
  391.     }
  392.     if (this.playoutLimitTimer_) {
  393.       this.playoutLimitTimer_.stop();
  394.       this.playoutLimitTimer_ = null;
  395.     }
  396.   }
  398.   /** @override */
  399.   release() {
  400.     this.stop();
  401.     if (this.eventManager_) {
  402.       this.eventManager_.release();
  403.     }
  404.     if (this.adEventManager_) {
  405.       this.adEventManager_.release();
  406.     }
  407.     if (this.timeUpdateTimer_) {
  408.       this.timeUpdateTimer_.stop();
  409.       this.timeUpdateTimer_ = null;
  410.     }
  411.     if (this.pollTimer_) {
  412.       this.pollTimer_.stop();
  413.       this.pollTimer_ = null;
  414.     }
  415.     this.player_.destroy();
  416.   }
  418.   /**
  419.    * @return {shaka.Player}
  420.    */
  421.   getPlayer() {
  422.     return this.player_;
  423.   }
  425.   /**
  426.    * @param {shaka.extern.HLSInterstitial} hlsInterstitial
  427.    */
  428.   async addMetadata(hlsInterstitial) {
  429.     this.updatePlayerConfig_();
  430.     const adInterstitials = await this.getInterstitialsInfo_(hlsInterstitial);
  431.     if (adInterstitials.length) {
  432.       this.addInterstitials(adInterstitials);
  433.     } else {
  434.       shaka.log.alwaysWarn('Unsupported HLS interstitial', hlsInterstitial);
  435.     }
  436.   }
  438.   /**
  439.    * @param {shaka.extern.TimelineRegionInfo} region
  440.    */
  441.   addRegion(region) {
  442.     const TXml = shaka.util.TXml;
  443.     const isReplace =
  444.         region.schemeIdUri == 'urn:mpeg:dash:event:alternativeMPD:replace:2025';
  445.     const isInsert =
  446.         region.schemeIdUri == 'urn:mpeg:dash:event:alternativeMPD:insert:2025';
  447.     if (!isReplace && !isInsert) {
  448.       shaka.log.warning('Unsupported alternative media presentation', region);
  449.       return;
  450.     }
  452.     const startTime = region.startTime;
  453.     let endTime = region.endTime;
  454.     let playoutLimit = null;
  455.     let resumeOffset = 0;
  456.     let interstitialUri;
  457.     for (const node of region.eventNode.children) {
  458.       if (node.tagName == 'AlternativeMPD') {
  459.         const uri = node.attributes['uri'];
  460.         if (uri) {
  461.           interstitialUri = uri;
  462.           break;
  463.         }
  464.       } else if (node.tagName == 'InsertPresentation' ||
  465.           node.tagName == 'ReplacePresentation') {
  466.         const url = node.attributes['url'];
  467.         if (url) {
  468.           interstitialUri = url;
  469.           const unscaledMaxDuration =
  470.               TXml.parseAttr(node, 'maxDuration', TXml.parseInt);
  471.           if (unscaledMaxDuration) {
  472.             playoutLimit = unscaledMaxDuration / region.timescale;
  473.           }
  474.           const unscaledReturnOffset =
  475.               TXml.parseAttr(node, 'returnOffset', TXml.parseInt);
  476.           if (unscaledReturnOffset) {
  477.             resumeOffset = unscaledReturnOffset / region.timescale;
  478.           }
  479.           if (isReplace && resumeOffset) {
  480.             endTime = startTime + resumeOffset;
  481.           }
  482.           break;
  483.         }
  484.       }
  485.     }
  486.     if (!interstitialUri) {
  487.       shaka.log.warning('Unsupported alternative media presentation', region);
  488.       return;
  489.     }
  491.     /** @type {!shaka.extern.AdInterstitial} */
  492.     const interstitial = {
  493.       id: region.id,
  494.       groupId: null,
  495.       startTime,
  496.       endTime,
  497.       uri: interstitialUri,
  498.       mimeType: null,
  499.       isSkippable: false,
  500.       skipOffset: null,
  501.       skipFor: null,
  502.       canJump: true,
  503.       resumeOffset: isInsert ? resumeOffset : null,
  504.       playoutLimit,
  505.       once: false,
  506.       pre: false,
  507.       post: false,
  508.       timelineRange: isReplace && !isInsert,
  509.       loop: false,
  510.       overlay: null,
  511.       displayOnBackground: false,
  512.       currentVideo: null,
  513.       background: null,
  514.     };
  515.     this.addInterstitials([interstitial]);
  516.   }
  518.   /**
  519.    * @param {shaka.extern.TimelineRegionInfo} region
  520.    */
  521.   addOverlayRegion(region) {
  522.     const TXml = shaka.util.TXml;
  524.     goog.asserts.assert(region.eventNode, 'Need a region eventNode');
  525.     const overlayEvent = TXml.findChild(region.eventNode, 'OverlayEvent');
  526.     const uri = overlayEvent.attributes['uri'];
  527.     const mimeType = overlayEvent.attributes['mimeType'];
  528.     const loop = overlayEvent.attributes['loop'] == 'true';
  529.     const z = TXml.parseAttr(overlayEvent, 'z', TXml.parseInt);
  530.     if (!uri || z == 0) {
  531.       shaka.log.warning('Unsupported OverlayEvent', region);
  532.       return;
  533.     }
  535.     let background = null;
  536.     const backgroundElement = TXml.findChild(overlayEvent, 'Background');
  537.     if (backgroundElement) {
  538.       const backgroundUri = backgroundElement.attributes['uri'];
  539.       if (backgroundUri) {
  540.         background = `center / contain no-repeat url('${backgroundUri}')`;
  541.       } else {
  542.         background = TXml.getContents(backgroundElement);
  543.       }
  544.     }
  546.     const viewport = {
  547.       x: 1920,
  548.       y: 1080,
  549.     };
  551.     const viewportElement = TXml.findChild(overlayEvent, 'Viewport');
  552.     if (viewportElement) {
  553.       const viewportX = TXml.parseAttr(viewportElement, 'x', TXml.parseInt);
  554.       if (viewportX == null) {
  555.         shaka.log.warning('Unsupported OverlayEvent', region);
  556.         return;
  557.       }
  558.       const viewportY = TXml.parseAttr(viewportElement, 'y', TXml.parseInt);
  559.       if (viewportY == null) {
  560.         shaka.log.warning('Unsupported OverlayEvent', region);
  561.         return;
  562.       }
  563.       viewport.x = viewportX;
  564.       viewport.y = viewportY;
  565.     }
  567.     /** @type {!shaka.extern.AdPositionInfo} */
  568.     const overlay = {
  569.       viewport: {
  570.         x: viewport.x,
  571.         y: viewport.y,
  572.       },
  573.       topLeft: {
  574.         x: 0,
  575.         y: 0,
  576.       },
  577.       size: {
  578.         x: viewport.x,
  579.         y: viewport.y,
  580.       },
  581.     };
  583.     const overlayElement = TXml.findChild(overlayEvent, 'Overlay');
  584.     if (viewportElement && overlayElement) {
  585.       const topLeft = TXml.findChild(overlayElement, 'TopLeft');
  586.       const size = TXml.findChild(overlayElement, 'Size');
  587.       if (topLeft && size) {
  588.         const topLeftX = TXml.parseAttr(topLeft, 'x', TXml.parseInt);
  589.         if (topLeftX == null) {
  590.           shaka.log.warning('Unsupported OverlayEvent', region);
  591.           return;
  592.         }
  593.         const topLeftY = TXml.parseAttr(topLeft, 'y', TXml.parseInt);
  594.         if (topLeftY == null) {
  595.           shaka.log.warning('Unsupported OverlayEvent', region);
  596.           return;
  597.         }
  598.         const sizeX = TXml.parseAttr(size, 'x', TXml.parseInt);
  599.         if (sizeX == null) {
  600.           shaka.log.warning('Unsupported OverlayEvent', region);
  601.           return;
  602.         }
  603.         const sizeY = TXml.parseAttr(size, 'y', TXml.parseInt);
  604.         if (sizeY == null) {
  605.           shaka.log.warning('Unsupported OverlayEvent', region);
  606.           return;
  607.         }
  608.         overlay.topLeft.x = topLeftX;
  609.         overlay.topLeft.y = topLeftY;
  610.         overlay.size.x = sizeX;
  611.         overlay.size.y = sizeY;
  612.       }
  613.     }
  614.     let currentVideo = null;
  615.     const squeezeElement = TXml.findChild(overlayEvent, 'Squeeze');
  616.     if (viewportElement && squeezeElement) {
  617.       const topLeft = TXml.findChild(squeezeElement, 'TopLeft');
  618.       const size = TXml.findChild(squeezeElement, 'Size');
  619.       if (topLeft && size) {
  620.         const topLeftX = TXml.parseAttr(topLeft, 'x', TXml.parseInt);
  621.         if (topLeftX == null) {
  622.           shaka.log.warning('Unsupported OverlayEvent', region);
  623.           return;
  624.         }
  625.         const topLeftY = TXml.parseAttr(topLeft, 'y', TXml.parseInt);
  626.         if (topLeftY == null) {
  627.           shaka.log.warning('Unsupported OverlayEvent', region);
  628.           return;
  629.         }
  630.         const sizeX = TXml.parseAttr(size, 'x', TXml.parseInt);
  631.         if (sizeX == null) {
  632.           shaka.log.warning('Unsupported OverlayEvent', region);
  633.           return;
  634.         }
  635.         const sizeY = TXml.parseAttr(size, 'y', TXml.parseInt);
  636.         if (sizeY == null) {
  637.           shaka.log.warning('Unsupported OverlayEvent', region);
  638.           return;
  639.         }
  640.         currentVideo = {
  641.           viewport: {
  642.             x: viewport.x,
  643.             y: viewport.y,
  644.           },
  645.           topLeft: {
  646.             x: topLeftX,
  647.             y: topLeftY,
  648.           },
  649.           size: {
  650.             x: sizeX,
  651.             y: sizeY,
  652.           },
  653.         };
  654.       }
  655.     }
  657.     /** @type {!shaka.extern.AdInterstitial} */
  658.     const interstitial = {
  659.       id: region.id,
  660.       groupId: null,
  661.       startTime: region.startTime,
  662.       endTime: region.endTime,
  663.       uri,
  664.       mimeType,
  665.       isSkippable: false,
  666.       skipOffset: null,
  667.       skipFor: null,
  668.       canJump: true,
  669.       resumeOffset: null,
  670.       playoutLimit: null,
  671.       once: false,
  672.       pre: false,
  673.       post: false,
  674.       timelineRange: true,
  675.       loop,
  676.       overlay,
  677.       displayOnBackground: z == -1,
  678.       currentVideo,
  679.       background,
  680.     };
  681.     this.addInterstitials([interstitial]);
  682.   }
  684.   /**
  685.    * @param {string} url
  686.    * @return {!Promise}
  687.    */
  688.   async addAdUrlInterstitial(url) {
  689.     const NetworkingEngine = shaka.net.NetworkingEngine;
  690.     const context = {
  691.       type: NetworkingEngine.AdvancedRequestType.INTERSTITIAL_AD_URL,
  692.     };
  693.     const responseData = await this.makeAdRequest_(url, context);
  694.     const data = shaka.util.TXml.parseXml(responseData, 'VAST,vmap:VMAP');
  695.     if (!data) {
  696.       throw new shaka.util.Error(
  697.           shaka.util.Error.Severity.CRITICAL,
  698.           shaka.util.Error.Category.ADS,
  699.           shaka.util.Error.Code.VAST_INVALID_XML);
  700.     }
  701.     let interstitials = [];
  702.     if (data.tagName == 'VAST') {
  703.       interstitials = shaka.ads.Utils.parseVastToInterstitials(
  704.           data, this.lastTime_);
  705.     } else if (data.tagName == 'vmap:VMAP') {
  706.       for (const ad of shaka.ads.Utils.parseVMAP(data)) {
  707.         // eslint-disable-next-line no-await-in-loop
  708.         const vastResponseData = await this.makeAdRequest_(ad.uri, context);
  709.         const vast = shaka.util.TXml.parseXml(vastResponseData, 'VAST');
  710.         if (!vast) {
  711.           throw new shaka.util.Error(
  712.               shaka.util.Error.Severity.CRITICAL,
  713.               shaka.util.Error.Category.ADS,
  714.               shaka.util.Error.Code.VAST_INVALID_XML);
  715.         }
  716.         interstitials.push(...shaka.ads.Utils.parseVastToInterstitials(
  717.             vast, ad.time));
  718.       }
  719.     }
  720.     this.addInterstitials(interstitials);
  721.   }
  724.   /**
  725.    * @param {!Array<shaka.extern.AdInterstitial>} interstitials
  726.    */
  727.   async addInterstitials(interstitials) {
  728.     let cuepointsChanged = false;
  729.     for (const interstitial of interstitials) {
  730.       if (!interstitial.uri) {
  731.         shaka.log.alwaysWarn('Missing URL in interstitial', interstitial);
  732.         continue;
  733.       }
  734.       if (!interstitial.mimeType) {
  735.         try {
  736.           const netEngine = this.player_.getNetworkingEngine();
  737.           goog.asserts.assert(netEngine, 'Need networking engine');
  738.           // eslint-disable-next-line no-await-in-loop
  739.           interstitial.mimeType = await shaka.net.NetworkingUtils.getMimeType(
  740.               interstitial.uri, netEngine,
  741.               this.basePlayer_.getConfiguration().streaming.retryParameters);
  742.         } catch (error) {}
  743.       }
  744.       const interstitialId = interstitial.id || JSON.stringify(interstitial);
  745.       if (this.interstitialIds_.has(interstitialId)) {
  746.         continue;
  747.       }
  748.       if (interstitial.loop && !interstitial.overlay) {
  749.         shaka.log.alwaysWarn('Loop is only supported in overlay interstitials',
  750.             interstitial);
  751.       }
  752.       if (!interstitial.overlay) {
  753.         cuepointsChanged = true;
  754.       }
  755.       this.interstitialIds_.add(interstitialId);
  756.       this.interstitials_.add(interstitial);
  757.       let shouldPreload = false;
  758.       if (interstitial.pre && this.lastTime_ == null) {
  759.         shouldPreload = true;
  760.       } else if (interstitial.startTime == 0 && !interstitial.canJump) {
  761.         shouldPreload = true;
  762.       } else if (this.lastTime_ != null) {
  763.         const difference = interstitial.startTime - this.lastTime_;
  764.         if (difference > 0 && difference <= 10) {
  765.           shouldPreload = true;
  766.         }
  767.       }
  768.       if (shouldPreload) {
  769.         if (!this.preloadManagerInterstitials_.has(interstitial) &&
  770.             this.isPreloadAllowed_(interstitial)) {
  771.           this.preloadManagerInterstitials_.set(
  772.               interstitial, this.player_.preload(
  773.                   interstitial.uri,
  774.                   /* startTime= */ null,
  775.                   interstitial.mimeType || undefined));
  776.         }
  777.         this.checkPreloadOnDomElements_(interstitial);
  778.       }
  779.     }
  780.     if (cuepointsChanged) {
  781.       this.cuepointsChanged_();
  782.     }
  783.     this.addEventListeners_();
  784.   }
  786.   /**
  787.    * @return {!HTMLMediaElement}
  788.    * @private
  789.    */
  790.   createMediaElement_() {
  791.     const video = /** @type {!HTMLMediaElement} */(
  792.       document.createElement(this.baseVideo_.tagName));
  793.     video.autoplay = true;
  794.     video.style.position = 'absolute';
  795.     video.style.top = '0';
  796.     video.style.left = '0';
  797.     video.style.width = '100%';
  798.     video.style.height = '100%';
  799.     video.style.display = 'none';
  800.     video.setAttribute('playsinline', '');
  801.     return video;
  802.   }
  805.   /**
  806.    * @param {boolean=} needPreRoll
  807.    * @param {?number=} numberToSkip
  808.    * @return {?shaka.extern.AdInterstitial}
  809.    * @private
  810.    */
  811.   getCurrentInterstitial_(needPreRoll = false, numberToSkip = null) {
  812.     let skipped = 0;
  813.     let currentInterstitial = null;
  814.     if (this.interstitials_.size && this.lastTime_ != null) {
  815.       const isEnded = this.baseVideo_.ended;
  816.       const interstitials = Array.from(this.interstitials_).sort((a, b) => {
  817.         return b.startTime - a.startTime;
  818.       });
  819.       const roundDecimals = (number) => {
  820.         return Math.round(number * 1000) / 1000;
  821.       };
  822.       let interstitialsToCheck = interstitials;
  823.       if (needPreRoll) {
  824.         interstitialsToCheck = interstitials.filter((i) => i.pre);
  825.       } else if (isEnded) {
  826.         interstitialsToCheck = interstitials.filter((i) => i.post);
  827.       } else {
  828.         interstitialsToCheck = interstitials.filter((i) => !i.pre && !i.post);
  829.       }
  830.       for (const interstitial of interstitialsToCheck) {
  831.         let isValid = false;
  832.         if (needPreRoll) {
  833.           isValid = interstitial.pre;
  834.         } else if (isEnded) {
  835.           isValid = interstitial.post;
  836.         } else if (!interstitial.pre && !interstitial.post) {
  837.           const difference =
  838.               this.lastTime_ - roundDecimals(interstitial.startTime);
  839.           let maxDifference = 1;
  840.           if (this.config_.allowStartInMiddleOfInterstitial &&
  841.               interstitial.endTime && interstitial.endTime != Infinity) {
  842.             maxDifference = interstitial.endTime - interstitial.startTime;
  843.           }
  844.           if (difference > 0 &&
  845.               (difference <= maxDifference || !interstitial.canJump)) {
  846.             if (numberToSkip == null && this.lastPlayedAd_ &&
  847.                 !this.lastPlayedAd_.pre && !this.lastPlayedAd_.post &&
  848.                 this.lastPlayedAd_.startTime >= interstitial.startTime) {
  849.               isValid = false;
  850.             } else {
  851.               isValid = true;
  852.             }
  853.           }
  854.         }
  855.         if (isValid && (!this.lastPlayedAd_ ||
  856.             interstitial.startTime >= this.lastPlayedAd_.startTime)) {
  857.           if (skipped == (numberToSkip || 0)) {
  858.             currentInterstitial = interstitial;
  859.           } else if (currentInterstitial && !interstitial.canJump) {
  860.             const currentStartTime =
  861.                 roundDecimals(currentInterstitial.startTime);
  862.             const newStartTime =
  863.                 roundDecimals(interstitial.startTime);
  864.             if (newStartTime - currentStartTime > 0.001) {
  865.               currentInterstitial = interstitial;
  866.               skipped = 0;
  867.             }
  868.           }
  869.           skipped++;
  870.         }
  871.       }
  872.     }
  873.     return currentInterstitial;
  874.   }
  877.   /**
  878.    * @param {shaka.extern.AdInterstitial} interstitial
  879.    * @param {number} sequenceLength
  880.    * @param {number} adPosition
  881.    * @param {number} initialTime the clock time the ad started at
  882.    * @param {number=} oncePlayed
  883.    * @private
  884.    */
  885.   setupAd_(interstitial, sequenceLength, adPosition, initialTime,
  886.       oncePlayed = 0) {
  887.     shaka.log.info('Starting interstitial',
  888.         interstitial.startTime, 'at', this.lastTime_);
  890.     this.lastPlayedAd_ = interstitial;
  892.     this.determineIfUsingBaseVideo_();
  893.     goog.asserts.assert(this.video_, 'Must have video');
  895.     if (!this.usingBaseVideo_ && this.adContainer_ &&
  896.         !this.video_.parentElement) {
  897.       this.adContainer_.appendChild(this.video_);
  898.     }
  900.     if (adPosition == 1 && sequenceLength == 1) {
  901.       sequenceLength = Array.from(this.interstitials_).filter((i) => {
  902.         if (interstitial.pre) {
  903.           return i.pre == interstitial.pre;
  904.         } else if (interstitial.post) {
  905.           return i.post == interstitial.post;
  906.         }
  907.         return Math.abs(i.startTime - interstitial.startTime) < 0.001;
  908.       }).length;
  909.     }
  911.     if (interstitial.once) {
  912.       oncePlayed++;
  913.       this.interstitials_.delete(interstitial);
  914.       this.removeEventListeners_();
  915.       if (!interstitial.overlay) {
  916.         this.cuepointsChanged_();
  917.       }
  918.     }
  920.     if (interstitial.mimeType) {
  921.       if (interstitial.mimeType.startsWith('image/') ||
  922.           interstitial.mimeType === 'text/html') {
  923.         if (!interstitial.overlay) {
  924.           shaka.log.alwaysWarn('Unsupported interstitial', interstitial);
  925.           return;
  926.         }
  927.         this.setupStaticAd_(interstitial, sequenceLength, adPosition,
  928.             oncePlayed);
  929.         return;
  930.       }
  931.     }
  932.     if (this.usingBaseVideo_ && interstitial.overlay) {
  933.       shaka.log.alwaysWarn('Unsupported interstitial', interstitial);
  934.       return;
  935.     }
  936.     this.setupVideoAd_(interstitial, sequenceLength, adPosition, initialTime,
  937.         oncePlayed);
  938.   }
  941.   /**
  942.    * @param {shaka.extern.AdInterstitial} interstitial
  943.    * @param {number} sequenceLength
  944.    * @param {number} adPosition
  945.    * @param {number} oncePlayed
  946.    * @private
  947.    */
  948.   setupStaticAd_(interstitial, sequenceLength, adPosition, oncePlayed) {
  949.     this.playingAd_ = true;
  951.     const overlay = interstitial.overlay;
  952.     goog.asserts.assert(overlay, 'Must have overlay');
  954.     const tagName = interstitial.mimeType == 'text/html' ? 'iframe' : 'img';
  956.     const htmlElement = /** @type {!(HTMLImageElement|HTMLIFrameElement)} */ (
  957.       document.createElement(tagName));
  958.     htmlElement.style.objectFit = 'contain';
  959.     htmlElement.style.position = 'absolute';
  960.     htmlElement.style.border = 'none';
  962.     this.setBaseStyles_(interstitial);
  964.     const basicTask = () => {
  965.       if (this.playoutLimitTimer_) {
  966.         this.playoutLimitTimer_.stop();
  967.         this.playoutLimitTimer_ = null;
  968.       }
  969.       this.adContainer_.removeChild(htmlElement);
  970.       this.removeBaseStyles_(interstitial);
  971.       this.onEvent_(
  972.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_STOPPED));
  973.       this.adEventManager_.removeAll();
  974.       const nextCurrentInterstitial = this.getCurrentInterstitial_(
  975.           interstitial.pre, adPosition - oncePlayed);
  976.       if (nextCurrentInterstitial) {
  977.         this.setupAd_(nextCurrentInterstitial, sequenceLength,
  978.             ++adPosition, /* initialTime= */ Date.now(), oncePlayed);
  979.       } else {
  980.         this.playingAd_ = false;
  981.       }
  982.     };
  984.     const ad = new shaka.ads.InterstitialStaticAd(
  985.         interstitial, sequenceLength, adPosition);
  987.     this.onEvent_(
  988.         new shaka.util.FakeEvent(shaka.ads.Utils.AD_STARTED,
  989.             (new Map()).set('ad', ad)));
  991.     if (tagName == 'iframe') {
  992.       htmlElement.src = interstitial.uri;
  993.     } else {
  994.       htmlElement.src = interstitial.uri;
  995.       htmlElement.onerror = (e) => {
  996.         this.onEvent_(new shaka.util.FakeEvent(shaka.ads.Utils.AD_ERROR,
  997.             (new Map()).set('originalEvent', e)));
  998.         basicTask();
  999.       };
  1000.     }
  1002.     const viewport = overlay.viewport;
  1003.     const topLeft = overlay.topLeft;
  1004.     const size = overlay.size;
  1005.     // Special case for VAST non-linear ads
  1006.     if (viewport.x == 0 && viewport.y == 0) {
  1007.       htmlElement.width = interstitial.overlay.size.x;
  1008.       htmlElement.height = interstitial.overlay.size.y;
  1009.       htmlElement.style.bottom = '10%';
  1010.       htmlElement.style.left = '0';
  1011.       htmlElement.style.right = '0';
  1012.       htmlElement.style.width = '100%';
  1013.       if (!interstitial.overlay.size.y && tagName == 'iframe') {
  1014.         htmlElement.style.height = 'auto';
  1015.       }
  1016.     } else {
  1017.       htmlElement.style.height = (size.y / viewport.y * 100) + '%';
  1018.       htmlElement.style.left = (topLeft.x / viewport.x * 100) + '%';
  1019.       htmlElement.style.top = (topLeft.y / viewport.y * 100) + '%';
  1020.       htmlElement.style.width = (size.x / viewport.x * 100) + '%';
  1021.     }
  1022.     this.adContainer_.appendChild(htmlElement);
  1024.     const startTime = Date.now();
  1025.     if (this.playoutLimitTimer_) {
  1026.       this.playoutLimitTimer_.stop();
  1027.     }
  1028.     this.playoutLimitTimer_ = new shaka.util.Timer(() => {
  1029.       if (interstitial.playoutLimit &&
  1030.           (Date.now() - startTime) / 1000 > interstitial.playoutLimit) {
  1031.         this.onEvent_(
  1032.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_COMPLETE));
  1033.         basicTask();
  1034.       } else if (interstitial.endTime &&
  1035.           this.baseVideo_.currentTime > interstitial.endTime) {
  1036.         this.onEvent_(
  1037.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_COMPLETE));
  1038.         basicTask();
  1039.       } else if (this.baseVideo_.currentTime < interstitial.startTime) {
  1040.         this.onEvent_(
  1041.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_SKIPPED));
  1042.         basicTask();
  1043.       }
  1044.     });
  1045.     if (interstitial.playoutLimit && !interstitial.endTime) {
  1046.       this.playoutLimitTimer_.tickAfter(interstitial.playoutLimit);
  1047.     } else if (interstitial.endTime) {
  1048.       this.playoutLimitTimer_.tickEvery(/* seconds= */ 0.025);
  1049.     }
  1050.     this.adEventManager_.listen(this.baseVideo_, 'seeked', () => {
  1051.       const currentTime = this.baseVideo_.currentTime;
  1052.       if (currentTime < interstitial.startTime ||
  1053.           (interstitial.endTime && currentTime > interstitial.endTime)) {
  1054.         if (this.playoutLimitTimer_) {
  1055.           this.playoutLimitTimer_.stop();
  1056.         }
  1057.         this.onEvent_(
  1058.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_SKIPPED));
  1059.         basicTask();
  1060.       }
  1061.     });
  1062.   }
  1065.   /**
  1066.    * @param {shaka.extern.AdInterstitial} interstitial
  1067.    * @param {number} sequenceLength
  1068.    * @param {number} adPosition
  1069.    * @param {number} initialTime the clock time the ad started at
  1070.    * @param {number} oncePlayed
  1071.    * @private
  1072.    */
  1073.   async setupVideoAd_(interstitial, sequenceLength, adPosition, initialTime,
  1074.       oncePlayed) {
  1075.     goog.asserts.assert(this.video_, 'Must have video');
  1076.     const startTime = Date.now();
  1078.     this.playingAd_ = true;
  1080.     if (this.usingBaseVideo_ && adPosition == 1) {
  1081.       this.onEvent_(new shaka.util.FakeEvent(
  1082.           shaka.ads.Utils.AD_CONTENT_PAUSE_REQUESTED,
  1083.           (new Map()).set('saveLivePosition', true)));
  1084.       const detachBasePlayerPromise = new shaka.util.PublicPromise();
  1085.       const checkState = async (e) => {
  1086.         if (e['state'] == 'detach') {
  1087.           if (this.isSmartTV_()) {
  1088.             await new Promise(
  1089.                 (resolve) => new shaka.util.Timer(resolve).tickAfter(0.1));
  1090.           }
  1091.           detachBasePlayerPromise.resolve();
  1092.           this.adEventManager_.unlisten(
  1093.               this.basePlayer_, 'onstatechange', checkState);
  1094.         }
  1095.       };
  1096.       this.adEventManager_.listen(
  1097.           this.basePlayer_, 'onstatechange', checkState);
  1098.       await detachBasePlayerPromise;
  1099.     }
  1100.     this.setBaseStyles_(interstitial);
  1101.     if (!this.usingBaseVideo_) {
  1102.       this.video_.style.display = '';
  1103.       if (interstitial.overlay) {
  1104.         this.video_.loop = interstitial.loop;
  1105.         const viewport = interstitial.overlay.viewport;
  1106.         const topLeft = interstitial.overlay.topLeft;
  1107.         const size = interstitial.overlay.size;
  1108.         this.video_.style.height = (size.y / viewport.y * 100) + '%';
  1109.         this.video_.style.left = (topLeft.x / viewport.x * 100) + '%';
  1110.         this.video_.style.top = (topLeft.y / viewport.y * 100) + '%';
  1111.         this.video_.style.width = (size.x / viewport.x * 100) + '%';
  1112.       } else {
  1113.         this.baseVideo_.pause();
  1114.         if (interstitial.resumeOffset != null &&
  1115.             interstitial.resumeOffset != 0) {
  1116.           this.baseVideo_.currentTime += interstitial.resumeOffset;
  1117.         }
  1118.         this.video_.loop = false;
  1119.         this.video_.style.height = '100%';
  1120.         this.video_.style.left = '0';
  1121.         this.video_.style.top = '0';
  1122.         this.video_.style.width = '100%';
  1123.       }
  1124.     }
  1126.     let unloadingInterstitial = false;
  1128.     const updateBaseVideoTime = () => {
  1129.       if (!this.usingBaseVideo_ && !interstitial.overlay) {
  1130.         if (interstitial.resumeOffset == null) {
  1131.           if (interstitial.timelineRange && interstitial.endTime &&
  1132.               interstitial.endTime != Infinity) {
  1133.             if (this.baseVideo_.currentTime != interstitial.endTime) {
  1134.               this.baseVideo_.currentTime = interstitial.endTime;
  1135.             }
  1136.           } else {
  1137.             const now = Date.now();
  1138.             this.baseVideo_.currentTime += (now - initialTime) / 1000;
  1139.             initialTime = now;
  1140.           }
  1141.         }
  1142.       }
  1143.     };
  1145.     const basicTask = async (isSkip) => {
  1146.       updateBaseVideoTime();
  1147.       // Optimization to avoid returning to main content when there is another
  1148.       // interstitial below.
  1149.       let nextCurrentInterstitial = this.getCurrentInterstitial_(
  1150.           interstitial.pre, adPosition - oncePlayed);
  1151.       if (isSkip && interstitial.groupId) {
  1152.         while (nextCurrentInterstitial &&
  1153.             nextCurrentInterstitial.groupId == interstitial.groupId) {
  1154.           adPosition++;
  1155.           nextCurrentInterstitial = this.getCurrentInterstitial_(
  1156.               interstitial.pre, adPosition - oncePlayed);
  1157.         }
  1158.       }
  1159.       if (this.playoutLimitTimer_ && (!interstitial.groupId ||
  1160.           (nextCurrentInterstitial &&
  1161.             nextCurrentInterstitial.groupId != interstitial.groupId))) {
  1162.         this.playoutLimitTimer_.stop();
  1163.         this.playoutLimitTimer_ = null;
  1164.       }
  1165.       this.removeBaseStyles_(interstitial);
  1166.       if (!nextCurrentInterstitial || nextCurrentInterstitial.overlay) {
  1167.         if (interstitial.post) {
  1168.           this.lastTime_ = null;
  1169.           this.lastPlayedAd_ = null;
  1170.         }
  1171.         if (this.usingBaseVideo_) {
  1172.           await this.player_.detach();
  1173.         } else {
  1174.           await this.player_.unload();
  1175.         }
  1176.         if (this.usingBaseVideo_) {
  1177.           let offset = interstitial.resumeOffset;
  1178.           if (offset == null) {
  1179.             if (interstitial.timelineRange && interstitial.endTime &&
  1180.                 interstitial.endTime != Infinity) {
  1181.               offset = interstitial.endTime - (this.lastTime_ || 0);
  1182.             } else {
  1183.               offset = (Date.now() - initialTime) / 1000;
  1184.             }
  1185.           }
  1186.           this.onEvent_(new shaka.util.FakeEvent(
  1187.               shaka.ads.Utils.AD_CONTENT_RESUME_REQUESTED,
  1188.               (new Map()).set('offset', offset)));
  1189.         }
  1190.         this.onEvent_(
  1191.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_STOPPED));
  1192.         this.adEventManager_.removeAll();
  1193.         this.playingAd_ = false;
  1194.         if (!this.usingBaseVideo_) {
  1195.           this.video_.style.display = 'none';
  1196.           updateBaseVideoTime();
  1197.           if (!this.baseVideo_.ended) {
  1198.             this.baseVideo_.play();
  1199.           }
  1200.         } else {
  1201.           this.cuepointsChanged_();
  1202.         }
  1203.       }
  1204.       this.determineIfUsingBaseVideo_();
  1205.       if (nextCurrentInterstitial) {
  1206.         this.onEvent_(
  1207.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_STOPPED));
  1208.         this.adEventManager_.removeAll();
  1209.         this.setupAd_(nextCurrentInterstitial, sequenceLength,
  1210.             ++adPosition, initialTime, oncePlayed);
  1211.       }
  1212.     };
  1213.     const error = async (e) => {
  1214.       if (unloadingInterstitial) {
  1215.         return;
  1216.       }
  1217.       unloadingInterstitial = true;
  1218.       this.onEvent_(new shaka.util.FakeEvent(shaka.ads.Utils.AD_ERROR,
  1219.           (new Map()).set('originalEvent', e)));
  1220.       await basicTask(/* isSkip= */ false);
  1221.     };
  1222.     const complete = async () => {
  1223.       if (unloadingInterstitial) {
  1224.         return;
  1225.       }
  1226.       unloadingInterstitial = true;
  1227.       await basicTask(/* isSkip= */ false);
  1228.       this.onEvent_(
  1229.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_COMPLETE));
  1230.     };
  1231.     this.lastOnSkip_ = async () => {
  1232.       if (unloadingInterstitial) {
  1233.         return;
  1234.       }
  1235.       unloadingInterstitial = true;
  1236.       this.onEvent_(new shaka.util.FakeEvent(shaka.ads.Utils.AD_SKIPPED));
  1237.       await basicTask(/* isSkip= */ true);
  1238.     };
  1240.     const ad = new shaka.ads.InterstitialAd(this.video_,
  1241.         interstitial, this.lastOnSkip_, sequenceLength, adPosition,
  1242.         !this.usingBaseVideo_);
  1243.     if (!this.usingBaseVideo_) {
  1244.       ad.setMuted(this.baseVideo_.muted);
  1245.       ad.setVolume(this.baseVideo_.volume);
  1246.     }
  1248.     this.onEvent_(
  1249.         new shaka.util.FakeEvent(shaka.ads.Utils.AD_STARTED,
  1250.             (new Map()).set('ad', ad)));
  1252.     let prevCanSkipNow = ad.canSkipNow();
  1253.     if (prevCanSkipNow) {
  1254.       this.onEvent_(new shaka.util.FakeEvent(
  1255.           shaka.ads.Utils.AD_SKIP_STATE_CHANGED));
  1256.     }
  1257.     this.adEventManager_.listenOnce(this.player_, 'error', error);
  1258.     this.adEventManager_.listen(this.video_, 'timeupdate', () => {
  1259.       const duration = this.video_.duration;
  1260.       if (!duration) {
  1261.         return;
  1262.       }
  1263.       const currentCanSkipNow = ad.canSkipNow();
  1264.       if (prevCanSkipNow != currentCanSkipNow &&
  1265.           ad.getRemainingTime() > 0 && ad.getDuration() > 0) {
  1266.         this.onEvent_(
  1267.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_SKIP_STATE_CHANGED));
  1268.       }
  1269.       prevCanSkipNow = currentCanSkipNow;
  1270.     });
  1271.     this.adEventManager_.listenOnce(this.player_, 'firstquartile', () => {
  1272.       updateBaseVideoTime();
  1273.       this.onEvent_(
  1274.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_FIRST_QUARTILE));
  1275.     });
  1276.     this.adEventManager_.listenOnce(this.player_, 'midpoint', () => {
  1277.       updateBaseVideoTime();
  1278.       this.onEvent_(
  1279.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_MIDPOINT));
  1280.     });
  1281.     this.adEventManager_.listenOnce(this.player_, 'thirdquartile', () => {
  1282.       updateBaseVideoTime();
  1283.       this.onEvent_(
  1284.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_THIRD_QUARTILE));
  1285.     });
  1286.     this.adEventManager_.listenOnce(this.player_, 'complete', complete);
  1287.     this.adEventManager_.listen(this.video_, 'play', () => {
  1288.       this.onEvent_(
  1289.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_RESUMED));
  1290.     });
  1291.     this.adEventManager_.listen(this.video_, 'pause', () => {
  1292.       // playRangeEnd in src= causes the ended event not to be fired when that
  1293.       // position is reached, instead pause event is fired.
  1294.       const currentConfig = this.player_.getConfiguration();
  1295.       if (this.video_.currentTime >= currentConfig.playRangeEnd) {
  1296.         complete();
  1297.         return;
  1298.       }
  1299.       this.onEvent_(
  1300.           new shaka.util.FakeEvent(shaka.ads.Utils.AD_PAUSED));
  1301.     });
  1302.     this.adEventManager_.listen(this.video_, 'volumechange', () => {
  1303.       if (this.video_.muted) {
  1304.         this.onEvent_(
  1305.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_MUTED));
  1306.       } else {
  1307.         this.onEvent_(
  1308.             new shaka.util.FakeEvent(shaka.ads.Utils.AD_VOLUME_CHANGED));
  1309.       }
  1310.     });
  1311.     try {
  1312.       this.updatePlayerConfig_();
  1313.       if (interstitial.startTime && interstitial.endTime &&
  1314.           interstitial.endTime != Infinity &&
  1315.           interstitial.startTime != interstitial.endTime) {
  1316.         const duration = interstitial.endTime - interstitial.startTime;
  1317.         if (duration > 0) {
  1318.           this.player_.configure('playRangeEnd', duration);
  1319.         }
  1320.       }
  1321.       if (interstitial.playoutLimit && !this.playoutLimitTimer_) {
  1322.         this.playoutLimitTimer_ = new shaka.util.Timer(() => {
  1323.           this.lastOnSkip_();
  1324.         }).tickAfter(interstitial.playoutLimit);
  1325.         this.player_.configure('playRangeEnd', interstitial.playoutLimit);
  1326.       }
  1327.       await this.player_.attach(this.video_);
  1328.       let playerStartTime = null;
  1329.       if (this.config_.allowStartInMiddleOfInterstitial &&
  1330.           this.lastTime_ != null) {
  1331.         const newPosition = this.lastTime_ - interstitial.startTime;
  1332.         if (Math.abs(newPosition) > 0.25) {
  1333.           playerStartTime = newPosition;
  1334.         }
  1335.       }
  1336.       if (this.preloadManagerInterstitials_.has(interstitial)) {
  1337.         const preloadManager =
  1338.             await this.preloadManagerInterstitials_.get(interstitial);
  1339.         this.preloadManagerInterstitials_.delete(interstitial);
  1340.         if (preloadManager) {
  1341.           await this.player_.load(preloadManager);
  1342.         } else {
  1343.           await this.player_.load(
  1344.               interstitial.uri,
  1345.               playerStartTime,
  1346.               interstitial.mimeType || undefined);
  1347.         }
  1348.       } else {
  1349.         await this.player_.load(
  1350.             interstitial.uri,
  1351.             playerStartTime,
  1352.             interstitial.mimeType || undefined);
  1353.       }
  1354.       this.video_.play();
  1355.       const loadTime = (Date.now() - startTime) / 1000;
  1356.       this.onEvent_(new shaka.util.FakeEvent(shaka.ads.Utils.ADS_LOADED,
  1357.           (new Map()).set('loadTime', loadTime)));
  1358.       if (this.usingBaseVideo_) {
  1359.         this.baseVideo_.play();
  1360.       }
  1361.       if (interstitial.overlay) {
  1362.         const setPosition = () => {
  1363.           const newPosition =
  1364.               this.baseVideo_.currentTime - interstitial.startTime;
  1365.           if (Math.abs(newPosition - this.video_.currentTime) > 0.1) {
  1366.             this.video_.currentTime = newPosition;
  1367.           }
  1368.         };
  1369.         this.adEventManager_.listenOnce(this.video_, 'playing', setPosition);
  1370.         this.adEventManager_.listen(this.baseVideo_, 'seeking', setPosition);
  1371.         this.adEventManager_.listen(this.baseVideo_, 'seeked', () => {
  1372.           const currentTime = this.baseVideo_.currentTime;
  1373.           if (currentTime < interstitial.startTime ||
  1374.               (interstitial.endTime && currentTime > interstitial.endTime)) {
  1375.             this.lastOnSkip_();
  1376.           }
  1377.         });
  1378.       }
  1379.     } catch (e) {
  1380.       if (!this.playingAd_) {
  1381.         return;
  1382.       }
  1383.       error(e);
  1384.     }
  1385.   }
  1387.   /**
  1388.    * @param {shaka.extern.AdInterstitial} interstitial
  1389.    * @private
  1390.    */
  1391.   setBaseStyles_(interstitial) {
  1392.     if (interstitial.displayOnBackground) {
  1393.       this.baseVideo_.style.zIndex = '1';
  1394.     }
  1395.     if (interstitial.currentVideo != null) {
  1396.       const currentVideo = interstitial.currentVideo;
  1397.       this.baseVideo_.style.transformOrigin = 'top left';
  1398.       let addTransition = true;
  1399.       const transforms = [];
  1400.       const translateX = currentVideo.topLeft.x / currentVideo.viewport.x * 100;
  1401.       if (translateX > 0 && translateX <= 100) {
  1402.         transforms.push(`translateX(${translateX}%)`);
  1403.         // In the case of double box ads we do not want transitions.
  1404.         addTransition = false;
  1405.       }
  1406.       const translateY = currentVideo.topLeft.y / currentVideo.viewport.y * 100;
  1407.       if (translateY > 0 && translateY <= 100) {
  1408.         transforms.push(`translateY(${translateY}%)`);
  1409.         // In the case of double box ads we do not want transitions.
  1410.         addTransition = false;
  1411.       }
  1412.       const scaleX = currentVideo.size.x / currentVideo.viewport.x;
  1413.       if (scaleX < 1) {
  1414.         transforms.push(`scaleX(${scaleX})`);
  1415.       }
  1416.       const scaleY = currentVideo.size.y / currentVideo.viewport.y;
  1417.       if (scaleX < 1) {
  1418.         transforms.push(`scaleY(${scaleY})`);
  1419.       }
  1420.       if (transforms.length) {
  1421.         this.baseVideo_.style.transform = transforms.join(' ');
  1422.       }
  1423.       if (addTransition) {
  1424.         this.baseVideo_.style.transition = 'transform 250ms';
  1425.       }
  1426.     }
  1427.     if (this.adContainer_) {
  1428.       this.adContainer_.style.pointerEvents = 'none';
  1429.       if (interstitial.background) {
  1430.         this.adContainer_.style.background = interstitial.background;
  1431.       }
  1432.     }
  1433.     if (this.adVideo_) {
  1434.       if (interstitial.overlay) {
  1435.         this.adVideo_.style.background = '';
  1436.       } else {
  1437.         this.adVideo_.style.background = 'rgb(0, 0, 0)';
  1438.       }
  1439.     }
  1440.   }
  1442.   /**
  1443.    * @param {?shaka.extern.AdInterstitial=} interstitial
  1444.    * @private
  1445.    */
  1446.   removeBaseStyles_(interstitial) {
  1447.     if (!interstitial || interstitial.displayOnBackground) {
  1448.       this.baseVideo_.style.zIndex = '';
  1449.     }
  1450.     if (!interstitial || interstitial.currentVideo != null) {
  1451.       this.baseVideo_.style.transformOrigin = '';
  1452.       this.baseVideo_.style.transition = '';
  1453.       this.baseVideo_.style.transform = '';
  1454.     }
  1455.     if (this.adContainer_) {
  1456.       this.adContainer_.style.pointerEvents = '';
  1457.       if (!interstitial || interstitial.background) {
  1458.         this.adContainer_.style.background = '';
  1459.       }
  1460.     }
  1461.     if (this.adVideo_) {
  1462.       this.adVideo_.style.background = '';
  1463.     }
  1464.   }
  1466.   /**
  1467.    * @param {shaka.extern.HLSInterstitial} hlsInterstitial
  1468.    * @return {!Promise<!Array<shaka.extern.AdInterstitial>>}
  1469.    * @private
  1470.    */
  1471.   async getInterstitialsInfo_(hlsInterstitial) {
  1472.     const interstitialsAd = [];
  1473.     if (!hlsInterstitial) {
  1474.       return interstitialsAd;
  1475.     }
  1476.     const assetUri = hlsInterstitial.values.find((v) => v.key == 'X-ASSET-URI');
  1477.     const assetList =
  1478.         hlsInterstitial.values.find((v) => v.key == 'X-ASSET-LIST');
  1479.     if (!assetUri && !assetList) {
  1480.       return interstitialsAd;
  1481.     }
  1482.     let id = null;
  1483.     const hlsInterstitialId = hlsInterstitial.values.find((v) => v.key == 'ID');
  1484.     if (hlsInterstitialId) {
  1485.       id = /** @type {string} */(hlsInterstitialId.data);
  1486.     }
  1487.     const startTime = id == null ?
  1488.         Math.floor(hlsInterstitial.startTime * 10) / 10:
  1489.         hlsInterstitial.startTime;
  1490.     let endTime = hlsInterstitial.endTime;
  1491.     if (hlsInterstitial.endTime && hlsInterstitial.endTime != Infinity &&
  1492.         typeof(hlsInterstitial.endTime) == 'number') {
  1493.       endTime = id == null ?
  1494.           Math.floor(hlsInterstitial.endTime * 10) / 10:
  1495.           hlsInterstitial.endTime;
  1496.     }
  1497.     const restrict = hlsInterstitial.values.find((v) => v.key == 'X-RESTRICT');
  1498.     let isSkippable = true;
  1499.     let canJump = true;
  1500.     if (restrict && restrict.data) {
  1501.       const data = /** @type {string} */(restrict.data);
  1502.       isSkippable = !data.includes('SKIP');
  1503.       canJump = !data.includes('JUMP');
  1504.     }
  1505.     let skipOffset = isSkippable ? 0 : null;
  1506.     const enableSkipAfter =
  1507.         hlsInterstitial.values.find((v) => v.key == 'X-ENABLE-SKIP-AFTER');
  1508.     if (enableSkipAfter) {
  1509.       const enableSkipAfterString = /** @type {string} */(enableSkipAfter.data);
  1510.       skipOffset = parseFloat(enableSkipAfterString);
  1511.       if (isNaN(skipOffset)) {
  1512.         skipOffset = isSkippable ? 0 : null;
  1513.       }
  1514.     }
  1515.     let skipFor = null;
  1516.     const enableSkipFor =
  1517.         hlsInterstitial.values.find((v) => v.key == 'X-ENABLE-SKIP-FOR');
  1518.     if (enableSkipFor) {
  1519.       const enableSkipForString = /** @type {string} */(enableSkipFor.data);
  1520.       skipFor = parseFloat(enableSkipForString);
  1521.       if (isNaN(skipOffset)) {
  1522.         skipFor = null;
  1523.       }
  1524.     }
  1525.     let resumeOffset = null;
  1526.     const resume =
  1527.         hlsInterstitial.values.find((v) => v.key == 'X-RESUME-OFFSET');
  1528.     if (resume) {
  1529.       const resumeOffsetString = /** @type {string} */(resume.data);
  1530.       resumeOffset = parseFloat(resumeOffsetString);
  1531.       if (isNaN(resumeOffset)) {
  1532.         resumeOffset = null;
  1533.       }
  1534.     }
  1535.     let playoutLimit = null;
  1536.     const playout =
  1537.         hlsInterstitial.values.find((v) => v.key == 'X-PLAYOUT-LIMIT');
  1538.     if (playout) {
  1539.       const playoutLimitString = /** @type {string} */(playout.data);
  1540.       playoutLimit = parseFloat(playoutLimitString);
  1541.       if (isNaN(playoutLimit)) {
  1542.         playoutLimit = null;
  1543.       }
  1544.     }
  1545.     let once = false;
  1546.     let pre = false;
  1547.     let post = false;
  1548.     const cue = hlsInterstitial.values.find((v) => v.key == 'CUE');
  1549.     if (cue) {
  1550.       const data = /** @type {string} */(cue.data);
  1551.       once = data.includes('ONCE');
  1552.       pre = data.includes('PRE');
  1553.       post = data.includes('POST');
  1554.     }
  1555.     let timelineRange = false;
  1556.     const timelineOccupies =
  1557.         hlsInterstitial.values.find((v) => v.key == 'X-TIMELINE-OCCUPIES');
  1558.     if (timelineOccupies) {
  1559.       const data = /** @type {string} */(timelineOccupies.data);
  1560.       timelineRange = data.includes('RANGE');
  1561.     } else if (!resume && this.basePlayer_.isLive()) {
  1562.       timelineRange = !pre && !post;
  1563.     }
  1564.     if (assetUri) {
  1565.       const uri = /** @type {string} */(assetUri.data);
  1566.       if (!uri) {
  1567.         return interstitialsAd;
  1568.       }
  1569.       interstitialsAd.push({
  1570.         id,
  1571.         groupId: null,
  1572.         startTime,
  1573.         endTime,
  1574.         uri,
  1575.         mimeType: null,
  1576.         isSkippable,
  1577.         skipOffset,
  1578.         skipFor,
  1579.         canJump,
  1580.         resumeOffset,
  1581.         playoutLimit,
  1582.         once,
  1583.         pre,
  1584.         post,
  1585.         timelineRange,
  1586.         loop: false,
  1587.         overlay: null,
  1588.         displayOnBackground: false,
  1589.         currentVideo: null,
  1590.         background: null,
  1591.       });
  1592.     } else if (assetList) {
  1593.       const uri = /** @type {string} */(assetList.data);
  1594.       if (!uri) {
  1595.         return interstitialsAd;
  1596.       }
  1597.       try {
  1598.         const NetworkingEngine = shaka.net.NetworkingEngine;
  1599.         const context = {
  1600.           type: NetworkingEngine.AdvancedRequestType.INTERSTITIAL_ASSET_LIST,
  1601.         };
  1602.         const responseData = await this.makeAdRequest_(uri, context);
  1603.         const data = shaka.util.StringUtils.fromUTF8(responseData);
  1604.         const dataAsJson =
  1605.         /** @type {!shaka.ads.InterstitialAdManager.AssetsList} */ (
  1606.             JSON.parse(data));
  1607.         const skipControl = dataAsJson['SKIP-CONTROL'];
  1608.         if (skipControl) {
  1609.           const enableSkipAfterValue = skipControl['ENABLE-SKIP-AFTER'];
  1610.           if ((typeof enableSkipAfterValue) == 'number') {
  1611.             skipOffset = parseFloat(enableSkipAfterValue);
  1612.             if (isNaN(enableSkipAfterValue)) {
  1613.               skipOffset = isSkippable ? 0 : null;
  1614.             }
  1615.           }
  1616.           const enableSkipForValue = skipControl['ENABLE-SKIP-FOR'];
  1617.           if ((typeof enableSkipForValue) == 'number') {
  1618.             skipFor = parseFloat(enableSkipForValue);
  1619.             if (isNaN(enableSkipForValue)) {
  1620.               skipFor = null;
  1621.             }
  1622.           }
  1623.         }
  1624.         for (let i = 0; i < dataAsJson['ASSETS'].length; i++) {
  1625.           const asset = dataAsJson['ASSETS'][i];
  1626.           if (asset['URI']) {
  1627.             interstitialsAd.push({
  1628.               id: id + '_shaka_asset_' + i,
  1629.               groupId: id,
  1630.               startTime,
  1631.               endTime,
  1632.               uri: asset['URI'],
  1633.               mimeType: null,
  1634.               isSkippable,
  1635.               skipOffset,
  1636.               skipFor,
  1637.               canJump,
  1638.               resumeOffset,
  1639.               playoutLimit,
  1640.               once,
  1641.               pre,
  1642.               post,
  1643.               timelineRange,
  1644.               loop: false,
  1645.               overlay: null,
  1646.               displayOnBackground: false,
  1647.               currentVideo: null,
  1648.               background: null,
  1649.             });
  1650.           }
  1651.         }
  1652.       } catch (e) {
  1653.         // Ignore errors
  1654.       }
  1655.     }
  1656.     return interstitialsAd;
  1657.   }
  1660.   /**
  1661.    * @private
  1662.    */
  1663.   cuepointsChanged_() {
  1664.     /** @type {!Array<!shaka.extern.AdCuePoint>} */
  1665.     const cuePoints = [];
  1666.     for (const interstitial of this.interstitials_) {
  1667.       if (interstitial.overlay) {
  1668.         continue;
  1669.       }
  1670.       /** @type {shaka.extern.AdCuePoint} */
  1671.       const shakaCuePoint = {
  1672.         start: interstitial.startTime,
  1673.         end: null,
  1674.       };
  1675.       if (interstitial.pre) {
  1676.         shakaCuePoint.start = 0;
  1677.         shakaCuePoint.end = null;
  1678.       } else if (interstitial.post) {
  1679.         shakaCuePoint.start = -1;
  1680.         shakaCuePoint.end = null;
  1681.       } else if (interstitial.timelineRange) {
  1682.         shakaCuePoint.end = interstitial.endTime;
  1683.       }
  1684.       const isValid = !cuePoints.find((c) => {
  1685.         return shakaCuePoint.start == c.start && shakaCuePoint.end == c.end;
  1686.       });
  1687.       if (isValid) {
  1688.         cuePoints.push(shakaCuePoint);
  1689.       }
  1690.     }
  1692.     this.onEvent_(new shaka.util.FakeEvent(
  1693.         shaka.ads.Utils.CUEPOINTS_CHANGED,
  1694.         (new Map()).set('cuepoints', cuePoints)));
  1695.   }
  1698.   /**
  1699.    * @private
  1700.    */
  1701.   updatePlayerConfig_() {
  1702.     goog.asserts.assert(this.player_, 'Must have player');
  1703.     goog.asserts.assert(this.basePlayer_, 'Must have base player');
  1704.     this.player_.configure(this.basePlayer_.getNonDefaultConfiguration());
  1705.     this.player_.configure('ads.disableHLSInterstitial', true);
  1706.     this.player_.configure('ads.disableDASHInterstitial', true);
  1707.     this.player_.configure('playRangeEnd', Infinity);
  1708.     const netEngine = this.player_.getNetworkingEngine();
  1709.     goog.asserts.assert(netEngine, 'Need networking engine');
  1710.     this.basePlayer_.getNetworkingEngine().copyFiltersInto(netEngine);
  1711.   }
  1713.   /**
  1714.    * @param {string} url
  1715.    * @param {shaka.extern.RequestContext=} context
  1716.    * @return {!Promise<BufferSource>}
  1717.    * @private
  1718.    */
  1719.   async makeAdRequest_(url, context) {
  1720.     const type = shaka.net.NetworkingEngine.RequestType.ADS;
  1721.     const request = shaka.net.NetworkingEngine.makeRequest(
  1722.         [url],
  1723.         shaka.net.NetworkingEngine.defaultRetryParameters());
  1724.     const op = this.basePlayer_.getNetworkingEngine()
  1725.         .request(type, request, context);
  1726.     const response = await op.promise;
  1727.     return response.data;
  1728.   }
  1730.   /**
  1731.    * @param {!shaka.extern.AdInterstitial} interstitial
  1732.    * @return {boolean}
  1733.    * @private
  1734.    */
  1735.   isPreloadAllowed_(interstitial) {
  1736.     const interstitialMimeType = interstitial.mimeType;
  1737.     if (!interstitialMimeType) {
  1738.       return true;
  1739.     }
  1740.     return !interstitialMimeType.startsWith('image/') &&
  1741.         interstitialMimeType !== 'text/html';
  1742.   }
  1745.   /**
  1746.    * Only for testing
  1747.    *
  1748.    * @return {!Array<shaka.extern.AdInterstitial>}
  1749.    */
  1750.   getInterstitials() {
  1751.     return Array.from(this.interstitials_);
  1752.   }
  1754.   /**
  1755.    * @return {boolean}
  1756.    * @private
  1757.    */
  1758.   isSmartTV_() {
  1759.     const device = shaka.device.DeviceFactory.getDevice();
  1760.     const deviceType = device.getDeviceType();
  1761.     if (deviceType == shaka.device.IDevice.DeviceType.TV ||
  1762.         deviceType == shaka.device.IDevice.DeviceType.CONSOLE ||
  1763.         deviceType == shaka.device.IDevice.DeviceType.CAST) {
  1764.       return true;
  1765.     }
  1766.     return false;
  1767.   }
  1769.   /**
  1770.    * @param {!shaka.extern.AdInterstitial} interstitial
  1771.    * @private
  1772.    */
  1773.   checkPreloadOnDomElements_(interstitial) {
  1774.     if (this.preloadOnDomElements_.has(interstitial) ||
  1775.         (this.config_ && !this.config_.allowPreloadOnDomElements)) {
  1776.       return;
  1777.     }
  1778.     const createAndAddLink = (url) => {
  1779.       const link = /** @type {HTMLLinkElement} */(
  1780.         document.createElement('link'));
  1781.       link.rel = 'preload';
  1782.       link.href = url;
  1783.       link.as = 'image';
  1784.       document.head.appendChild(link);
  1785.       return link;
  1786.     };
  1787.     const links = [];
  1788.     if (interstitial.background) {
  1789.       const urlRegExp = /url\(('|")?([^'"()]+)('|")\)?/;
  1790.       const match = interstitial.background.match(urlRegExp);
  1791.       if (match) {
  1792.         links.push(createAndAddLink(match[2]));
  1793.       }
  1794.     }
  1795.     if (interstitial.mimeType.startsWith('image/')) {
  1796.       links.push(createAndAddLink(interstitial.uri));
  1797.     }
  1798.     this.preloadOnDomElements_.set(interstitial, links);
  1799.   }
  1802.   /**
  1803.    * @param {!shaka.extern.AdInterstitial} interstitial
  1804.    * @private
  1805.    */
  1806.   removePreloadOnDomElements_(interstitial) {
  1807.     if (!this.preloadOnDomElements_.has(interstitial)) {
  1808.       return;
  1809.     }
  1810.     const links = this.preloadOnDomElements_.get(interstitial);
  1811.     for (const link of links) {
  1812.       link.parentNode.removeChild(link);
  1813.     }
  1814.     this.preloadOnDomElements_.delete(interstitial);
  1815.   }
  1816. };
  1819. /**
  1820.  * @typedef {{
  1821.  *   ASSETS: !Array<shaka.ads.InterstitialAdManager.Asset>,
  1822.  *   SKIP-CONTROL: ?shaka.ads.InterstitialAdManager.SkipControl,
  1823.  * }}
  1824.  *
  1825.  * @property {!Array<shaka.ads.InterstitialAdManager.Asset>} ASSETS
  1826.  * @property {shaka.ads.InterstitialAdManager.SkipControl} SKIP-CONTROL
  1827.  */
  1828. shaka.ads.InterstitialAdManager.AssetsList;
  1831. /**
  1832.  * @typedef {{
  1833.  *   URI: string,
  1834.  * }}
  1835.  *
  1836.  * @property {string} URI
  1837.  */
  1838. shaka.ads.InterstitialAdManager.Asset;
  1841. /**
  1842.  * @typedef {{
  1843.  *   ENABLE-SKIP-AFTER: number,
  1844.  *   ENABLE-SKIP-FOR: number,
  1845.  * }}
  1846.  *
  1847.  * @property {number} ENABLE-SKIP-AFTER
  1848.  * @property {number} ENABLE-SKIP-FOR
  1849.  */
  1850. shaka.ads.InterstitialAdManager.SkipControl;