/**
 * videojs-vtt-thumbnails
 * @version 0.0.13
 * @copyright 2020 Chris Boustead <chris@forgemotion.com>
 * @license MIT
 */
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t(require("video.js")):"function"==typeof define&&define.amd?define(["video.js"],t):(e=e||self).videojsVttThumbnails=t(e.videojs)}(this,function(i){"use strict";i=i&&Object.prototype.hasOwnProperty.call(i,"default")?i.default:i;function e(s){var r=this;this.ready(function(){var e,t;e=r,t=i.mergeOptions(n,s),e.addClass("vjs-vtt-thumbnails"),e.vttThumbnails=new a(e,t)})}var n={},o={},t=i.registerPlugin||i.plugin,a=function(){function e(e,t){return this.player=e,this.options=t,this.listenForDurationChange(),this.initializeThumbnails(),this.registeredEvents={},this}var t=e.prototype;return t.src=function(e){this.resetPlugin(),this.options.src=e,this.initializeThumbnails()},t.detach=function(){this.resetPlugin()},t.resetPlugin=function(){this.thumbnailHolder&&this.thumbnailHolder.parentNode.removeChild(this.thumbnailHolder),this.progressBar&&(this.progressBar.removeEventListener("mouseenter",this.registeredEvents.progressBarMouseEnter),this.progressBar.removeEventListener("mouseleave",this.registeredEvents.progressBarMouseLeave),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},t.listenForDurationChange=function(){this.player.on("durationchange",function(){})},t.initializeThumbnails=function(){var e,t,s=this;this.options.src&&(e=this.getBaseUrl(),t=this.getFullyQualifiedUrl(this.options.src,e),this.getVttFile(t).then(function(e){s.vttData=s.processVtt(e),s.setupThumbnailElement()}))},t.getBaseUrl=function(){return[window.location.protocol,"//",window.location.hostname,window.location.port?":"+window.location.port:"",window.location.pathname].join("").split(/([^\/]*)$/gi).shift()},t.getVttFile=function(r){var i=this;return new Promise(function(e,t){var s=new XMLHttpRequest;s.data={resolve:e},s.addEventListener("load",i.vttFileLoaded),s.open("GET",r),s.overrideMimeType("text/plain; charset=utf-8"),s.send()})},t.vttFileLoaded=function(){this.data.resolve(this.responseText)},t.setupThumbnailElement=function(){var e=this,t=null;this.options.showTimestamp||(t=this.player.$(".vjs-mouse-display"));var s=document.createElement("div");s.setAttribute("class","vjs-vtt-thumbnail-display"),this.progressBar=this.player.$(".vjs-progress-control"),this.progressBar.appendChild(s),this.thumbnailHolder=s,t&&!this.options.showTimestamp&&t.classList.add("vjs-hidden"),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)},t.onBarMouseenter=function(){var t=this;this.mouseMoveCallback=function(e){t.onBarMousemove(e)},this.registeredEvents.progressBarMouseMove=this.mouseMoveCallback,this.progressBar.addEventListener("mousemove",this.registeredEvents.progressBarMouseMove),this.showThumbnailHolder()},t.onBarMouseleave=function(){this.registeredEvents.progressBarMouseMove&&this.progressBar.removeEventListener("mousemove",this.registeredEvents.progressBarMouseMove),this.hideThumbnailHolder()},t.getXCoord=function(e,t){var s=e.getBoundingClientRect(),r=document.documentElement;return t-(s.left+(window.pageXOffset||r.scrollLeft||0))},t.onBarMousemove=function(e){this.updateThumbnailStyle(i.dom.getPointerPosition(this.progressBar,e).x,this.progressBar.offsetWidth)},t.getStyleForTime=function(e){for(var t=0;t<this.vttData.length;++t){var s,r=this.vttData[t];if(e>=r.start&&e<r.end)return r.css.url&&!o[r.css.url]&&((s=new Image).src=r.css.url,o[r.css.url]=s),r.css}},t.showThumbnailHolder=function(){this.thumbnailHolder.style.opacity="1"},t.hideThumbnailHolder=function(){this.thumbnailHolder.style.opacity="0"},t.updateThumbnailStyle=function(e,t){var s=e*this.player.duration(),r=this.getStyleForTime(s);if(!r)return this.hideThumbnailHolder();var i=e*t,n=parseInt(r.width,10),o=n>>1,a=t-(i+o),l=i-o;if(0<l&&0<a?this.thumbnailHolder.style.transform="translateX("+(i-o)+"px)":l<=0?this.thumbnailHolder.style.transform="translateX(0px)":a<=0&&(this.thumbnailHolder.style.transform="translateX("+(t-n)+"px)"),!this.lastStyle||this.lastStyle!==r)for(var u in this.lastStyle=r)r.hasOwnProperty(u)&&(this.thumbnailHolder.style[u]=r[u])},t.processVtt=function(e){var a=this,l=[];return e.split(/[\r\n][\r\n]/i).forEach(function(e){var t,s,r,i,n,o;e.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)&&(r=(s=(t=e.split(/[\r\n]/i))[0].split(/ ?--> ?/i))[0],i=s[1],n=t[1],o=a.getVttCss(n),l.push({start:a.getSecondsFromTimestamp(r),end:a.getSecondsFromTimestamp(i),css:o}))}),l},t.getFullyQualifiedUrl=function(e,t){return 0<=e.indexOf("//")?e:0===t.indexOf("//")?[t.replace(/\/$/gi,""),this.trim(e,"/")].join("/"):0<t.indexOf("//")?[this.trim(t,"/"),this.trim(e,"/")].join("/"):e},t.getPropsFromDef=function(e){var t=e.split(/#xywh=/i),s=t[0],r=t[1].match(/[0-9]+/gi);return{x:r[0],y:r[1],w:r[2],h:r[3],image:s}},t.getVttCss=function(e){var t={},s=0<=this.options.src.indexOf("//")?this.options.src.split(/([^\/]*)$/gi).shift():this.getBaseUrl()+this.options.src.split(/([^\/]*)$/gi).shift();if(!(e=this.getFullyQualifiedUrl(e,s)).match(/#xywh=/i))return t.background='url("'+e+'")',t;var r=this.getPropsFromDef(e);return t.background='url("'+r.image+'") no-repeat -'+r.x+"px -"+r.y+"px",t.width=r.w+"px",t.height=r.h+"px",t.url=r.image,t},t.deconstructTimestamp=function(e){var t=e.split("."),s=t[0].split(":");return{milliseconds:parseInt(t[1],10)||0,seconds:parseInt(s.pop(),10)||0,minutes:parseInt(s.pop(),10)||0,hours:parseInt(s.pop(),10)||0}},t.getSecondsFromTimestamp=function(e){var t=this.deconstructTimestamp(e);return parseInt(3600*t.hours+60*t.minutes+t.seconds+t.milliseconds/1e3,10)},t.trim=function(e,t){var s=[" ","\n","\r","\t","\f","\v"," "," "," "," "," "," "," "," "," "," "," "," ","​","\u2028","\u2029","　"].join(""),r=0,i=0;for(e+="",t&&(s=(t+"").replace(/([[\]().?/*{}+$^:])/g,"$1")),r=e.length,i=0;i<r;i++)if(-1===s.indexOf(e.charAt(i))){e=e.substring(i);break}for(i=(r=e.length)-1;0<=i;i--)if(-1===s.indexOf(e.charAt(i))){e=e.substring(0,i+1);break}return-1===s.indexOf(e.charAt(0))?e:""},e}();return t("vttThumbnails",e),e.VERSION="0.0.13",e});