invidious/assets/js/videojs-vtt-thumbnails.min.js

/**
 * videojs-vtt-thumbnails
 * @version 0.0.13
 * @copyright 2019 Chris Boustead <chris@forgemotion.com>
 * @license MIT
 */
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e(require("video.js")):"function"==typeof define&&define.amd?define(["video.js"],e):t.videojsVttThumbnails=e(t.videojs)}(this,function(o){"use strict";o=o&&o.hasOwnProperty("default")?o.default:o;!function(){function l(t){this.value=t}function t(o){var i,n;function a(t,e){try{var r=o[t](e),s=r.value;s instanceof l?Promise.resolve(s.value).then(function(t){a("next",t)},function(t){a("throw",t)}):u(r.done?"return":"normal",r.value)}catch(t){u("throw",t)}}function u(t,e){switch(t){case"return":i.resolve({value:e,done:!0});break;case"throw":i.reject(e);break;default:i.resolve({value:e,done:!1})}(i=i.next)?a(i.key,i.arg):n=null}this._invoke=function(s,o){return new Promise(function(t,e){var r={key:s,arg:o,resolve:t,reject:e,next:null};n?n=n.next=r:(i=n=r,a(s,o))})},"function"!=typeof o.return&&(this.return=void 0)}"function"==typeof Symbol&&Symbol.asyncIterator&&(t.prototype[Symbol.asyncIterator]=function(){return this}),t.prototype.next=function(t){return this._invoke("next",t)},t.prototype.throw=function(t){return this._invoke("throw",t)},t.prototype.return=function(t){return this._invoke("return",t)}}();var i={},t=o.registerPlugin||o.plugin,e=function(r){var s=this;this.ready(function(){var t,e;t=s,e=o.mergeOptions(i,r),t.addClass("vjs-vtt-thumbnails"),t.vttThumbnails=new n(t,e)})},n=function(){function r(t,e){return function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,r),this.player=t,this.options=e,this.listenForDurationChange(),this.initializeThumbnails(),this.registeredEvents={},this}return r.prototype.src=function(t){this.resetPlugin(),this.options.src=t,this.initializeThumbnails()},r.prototype.detach=function(){this.resetPlugin()},r.prototype.resetPlugin=function(){this.thumbnailHolder&&this.thumbnailHolder.parentNode.removeChild(this.thumbnailHolder),this.progressBar&&this.progressBar.removeEventListener("mouseenter",this.registeredEvents.progressBarMouseEnter),this.progressBar&&this.progressBar.removeEventListener("mouseleave",this.registeredEvents.progressBarMouseLeave),this.progressBar&&this.progressBar.removeEventListener("mousemove",this.registeredEvents.progressBarMouseMove),delete this.registeredEvents.progressBarMouseEnter,delete this.registeredEvents.progressBarMouseLeave,delete this.registeredEvents.progressBarMouseMove,delete this.progressBar,delete this.vttData,delete this.thumbnailHolder,delete this.lastStyle},r.prototype.listenForDurationChange=function(){this.player.on("durationchange",function(){})},r.prototype.initializeThumbnails=function(){var e=this;if(this.options.src){var t=this.getBaseUrl(),r=this.getFullyQualifiedUrl(this.options.src,t);this.getVttFile(r).then(function(t){e.vttData=e.processVtt(t),e.setupThumbnailElement()})}},r.prototype.getBaseUrl=function(){return[window.location.protocol,"//",window.location.hostname,window.location.port?":"+window.location.port:"",window.location.pathname].join("").split(/([^\/]*)$/gi).shift()},r.prototype.getVttFile=function(s){var o=this;return new Promise(function(t,e){var r=new XMLHttpRequest;r.data={resolve:t},r.addEventListener("load",o.vttFileLoaded),r.open("GET",s),r.send()})},r.prototype.vttFileLoaded=function(){this.data.resolve(this.responseText)},r.prototype.setupThumbnailElement=function(t){var e=this;this.progressBar=this.player.$(".vjs-progress-control");var r=document.createElement("div");r.setAttribute("class","vjs-vtt-thumbnail-display"),this.progressBar.appendChild(r),this.thumbnailHolder=r,this.registeredEvents.progressBarMouseEnter=function(){return e.onBarMouseenter()},this.registeredEvents.progressBarMouseLeave=function(){return e.onBarMouseleave()},this.progressBar.addEventListener("mouseenter",this.registeredEvents.progressBarMouseEnter),this.progressBar.addEventListener("mouseleave",this.registeredEvents.progressBarMouseLeave)},r.prototype.onBarMouseenter=function(){var e=this;this.mouseMoveCallback=function(t){e.onBarMousemove(t)},this.registeredEvents.progressBarMouseMove=this.mouseMoveCallback,this.progressBar.addEventListener("mousemove",this.registeredEvents.progressBarMouseMove),this.showThumbnailHolder()},r.prototype.onBarMouseleave=function(){this.registeredEvents.progressBarMouseMove&&this.progressBar.removeEventListener("mousemove",this.registeredEvents.progressBarMouseMove),this.hideThumbnailHolder()},r.prototype.getXCoord=function(t,e){var r=t.getBoundingClientRect(),s=document.documentElement;return e-(r.left+(window.pageXOffset||s.scrollLeft||0))},r.prototype.onBarMousemove=function(t){this.updateThumbnailStyle(this.getXCoord(this.progressBar,t.clientX),this.progressBar.offsetWidth)},r.prototype.getStyleForTime=function(t){for(var e=0;e<this.vttData.length;++e){var r=this.vttData[e];if(t>=r.start&&t<r.end)return r.css}},r.prototype.showThumbnailHolder=function(){this.thumbnailHolder.style.opacity="1"},r.prototype.hideThumbnailHolder=function(){this.thumbnailHolder.style.opacity="0"},r.prototype.updateThumbnailStyle=function(t,e){var r=(1-(e-t)/e)*this.player.duration(),s=this.getStyleForTime(r);if(!s)return this.hideThumbnailHolder();var o=(1-(e-t)/e)*e;if(this.thumbnailHolder.style.transform="translateX("+o+"px)",this.thumbnailHolder.style.marginLeft="-"+parseInt(s.width)/2+"px",!this.lastStyle||this.lastStyle!==s)for(var i in this.lastStyle=s)s.hasOwnProperty(i)&&(this.thumbnailHolder.style[i]=s[i])},r.prototype.processVtt=function(t){var a=this,u=[];return t.split(/[\r\n][\r\n]/i).forEach(function(t){if(t.match(/([0-9]{2}:)?([0-9]{2}:)?[0-9]{2}(.[0-9]{3})?( ?--> ?)([0-9]{2}:)?([0-9]{2}:)?[0-9]{2}(.[0-9]{3})?[\r\n]{1}.*/gi)){var e=t.split(/[\r\n]/i),r=e[0].split(/ ?--> ?/i),s=r[0],o=r[1],i=e[1],n=a.getVttCss(i);u.push({start:a.getSecondsFromTimestamp(s),end:a.getSecondsFromTimestamp(o),css:n})}}),u},r.prototype.getFullyQualifiedUrl=function(t,e){return 0<=t.indexOf("//")?t:0===e.indexOf("//")?[e.replace(/\/$/gi,""),this.trim(t,"/")].join("/"):0<e.indexOf("//")?[this.trim(e,"/"),this.trim(t,"/")].join("/"):t},r.prototype.getPropsFromDef=function(t){var e=t.split(/#xywh=/i),r=e[0],s=e[1].match(/[0-9]+/gi);return{x:s[0],y:s[1],w:s[2],h:s[3],image:r}},r.prototype.getVttCss=function(t){var e={},r=void 0;if(r=0<=this.options.src.indexOf("//")?this.options.src.split(/([^\/]*)$/gi).shift():this.getBaseUrl()+this.options.src.split(/([^\/]*)$/gi).shift(),!(t=this.getFullyQualifiedUrl(t,r)).match(/#xywh=/i))return e.background='url("'+t+'")',e;var s=this.getPropsFromDef(t);return e.background='url("'+s.image+'") no-repeat -'+s.x+"px -"+s.y+"px",e.width=s.w+"px",e.height=s.h+"px",e},r.prototype.doconstructTimestamp=function(t){var e=t.split("."),r=e[0].split(":");return{milliseconds:parseInt(e[1])||0,seconds:parseInt(r.pop())||0,minutes:parseInt(r.pop())||0,hours:parseInt(r.pop())||0}},r.prototype.getSecondsFromTimestamp=function(t){var e=this.doconstructTimestamp(t);return parseInt(3600*e.hours+60*e.minutes+e.seconds+e.milliseconds/1e3)},r.prototype.trim=function(t,e){var r=[" ","\n","\r","\t","\f","\v"," "," "," "," "," "," "," "," "," "," "," "," ","​","\u2028","\u2029","　"].join(""),s=0,o=0;for(t+="",e&&(r=(e+"").replace(/([[\]().?/*{}+$^:])/g,"$1")),s=t.length,o=0;o<s;o++)if(-1===r.indexOf(t.charAt(o))){t=t.substring(o);break}for(o=(s=t.length)-1;0<=o;o--)if(-1===r.indexOf(t.charAt(o))){t=t.substring(0,o+1);break}return-1===r.indexOf(t.charAt(0))?t:""},r}();return t("vttThumbnails",e),e.VERSION="0.0.13",e});