ArtPlayer/docs/compiled/artplayer-plugin-auto-thumbnail.legacy.js

/*!
 * artplayer-plugin-auto-thumbnail.js v1.1.0
 * Github: https://github.com/zhw2590582/ArtPlayer
 * (c) 2017-2026 Harvey Zhao
 * Released under the MIT License.
 */
!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerPluginAutoThumbnail=t(),define(function(){return e.artplayerPluginAutoThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerPluginAutoThumbnail=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,i=Object.prototype.propertyIsEnumerable,r=(t,n,i)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:i}):t[n]=i;function o(e){let t,n=!1;for(const r of e)try{r()}catch(i){n||(n=!0,t=i)}return{failed:n,failure:t}}function a(e,a){let u,d,l=!1;const c=new Set;function s(e){void 0!==e&&c.delete(e)&&URL.revokeObjectURL(e)}function f(){const e=u;u=void 0,null==e||e.dispose()}return{start:function(){if(l)return;const f=u,h=[];let m=!1;const v={active:()=>!l&&!m&&u===v,own(e){if(m){const t=o([e]);t.failed&&a(t.failure)}else h.push(e)},dispose(){if(m)return;m=!0,u===v&&(u=void 0);const e=o(h.splice(0).reverse());e.failed&&a(e.failure)},fail(e){v.active()&&(v.dispose(),a(e))},guard:e=>(...t)=>{if(v.active())try{return e(...t)}catch(n){v.fail(n)}},publish(u,l){if(!v.active())return;if(!u)throw new Error("Auto-thumbnail encoding returned no Blob");const f=URL.createObjectURL(u);if(c.add(f),!v.active())return void s(f);const h=d;d=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&r(e,a,o[a]);if(t)for(var a of t(o))i.call(o,a)&&r(e,a,o[a]);return e})({url:f},l))}catch(m){d===f&&(d=void 0!==h&&c.has(h)?h:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),m}s(h)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(l)return;l=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);d=void 0,e.failed&&a(e.failure)},get closed(){return l}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let i;function r(){const e=i;i=void 0;const n=o([()=>{t.onloadeddata=null},()=>{t.onseeked=null},()=>{e&&null!==e.timer&&clearTimeout(e.timer)},()=>{e&&null!==e.frame&&t.cancelVideoFrameCallback(e.frame)}]);if(n.failed)throw n.failure}return e.own(r),(o,a)=>{if(r(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};i=u;const d=()=>e.active()&&i===u,l=e.guard(()=>{d()&&u.sought&&u.presented&&(r(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const i=++u.sequence;u.presented=!1;const r=u.frame;if(u.frame=null,null!==r&&t.cancelVideoFrameCallback(r),!d())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{d()&&i===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,l())}));d()&&i===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),d()&&(t.currentTime=o)},s=e.guard(()=>{d()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!d()||t.seeking)return;const e=t.currentTime;if(d())if(!Number.isFinite(e)||Math.abs(e-o)>.05){if(++u.retries>3)throw new Error("Auto-thumbnail seek did not reach the requested time");c()}else u.sought=!0,l()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(d())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!d())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;d()&&(f?s():t.onloadeddata=s)}}function d(e,t){const n=function(e){const t=document.createElement("video");e.own(()=>t.remove()),e.own(()=>t.load()),e.own(()=>t.removeAttribute("src")),e.own(()=>t.pause());for(const n of["onloadedmetadata","onloadeddata","onseeked","onerror"])e.own(()=>{t[n]=null});return e.active()?(t.crossOrigin="anonymous",t.muted=!0,t.playsInline=!0,t.tabIndex=-1,t.setAttribute("aria-hidden","true"),t.style.cssText="position:fixed;left:0;top:0;visibility:hidden;pointer-events:none;display:block;width:auto;height:auto;max-width:none;max-height:none",document.documentElement.appendChild(t),e.active()||t.remove(),t):t}(e);e.active()&&(n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{n.onloadedmetadata=null;const i=n.duration,r=n.videoHeight,o=n.videoWidth,{height:a,canvasWidth:d,canvasHeight:l}=function(e,t){if(!Number.isFinite(t.duration)||t.duration<=0||!Number.isFinite(t.videoWidth)||t.videoWidth<=0||!Number.isFinite(t.videoHeight)||t.videoHeight<=0)throw new TypeError("Auto-thumbnail requires finite media duration and dimensions");const n=Math.floor(e.width*t.videoHeight/t.videoWidth),i=Math.trunc(10*e.width),r=Math.trunc(n*Math.ceil(e.number/10));if(![n,i,r].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:i,canvasHeight:r}}(t,{duration:i,videoHeight:r,videoWidth:o});if(!e.active())return;n.width=o,n.height=r,n.style.width=`${o}px`,n.style.height=`${r}px`;const c=document.createElement("canvas");if(e.own(()=>{c.height=0}),e.own(()=>{c.width=0}),!e.active())return;if(c.width=d,!e.active())return;if(c.height=l,!e.active())return;const s=c.getContext("2d");if(!s)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const f=u(e,n),h=function(e,t){let n;function i(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(i),r=>{if(!e.active())return;if(n)throw new Error("Auto-thumbnail encoding is already pending");const o={timer:null};n=o;const a=()=>e.active()&&n===o;o.timer=setTimeout(e.guard(()=>{if(a())throw new Error("Auto-thumbnail encoding timed out")}),3e4),a()?t.toBlob(e.guard(t=>{a()&&(i(),e.active()&&r(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,c);let m=0;const v=e.guard(()=>{m>=t.number?e.dispose():f(i*m/t.number,e.guard(()=>{s.drawImage(n,m%10*t.width,Math.floor(m/10)*a,t.width,a),e.active()&&h(n=>{e.publish(n,{height:a,column:10,number:t.number,width:t.width,scale:t.scale}),e.active()&&(m+=1,v())})}))});v()}),e.active()&&(n.src=t.url))}function l(e){return t=>{return n=null,i=null,r=function*(){const n=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),i=a(e=>{t.thumbnails=e},n),r=[],u=()=>{const n=i.start();n&&n.guard(()=>{const i=function(e,t){const n={url:e.url||t(),width:e.width||160,number:e.number||100,scale:e.scale||1};if(!Number.isFinite(Number(n.width))||n.width<=0||!Number.isFinite(Number(n.number))||n.number<=0)throw new TypeError("Auto-thumbnail width and number must be finite positive numbers");return n}(e,()=>t.option.url);n.active()&&d(n,i)})()},l=()=>{const e=r.splice(0),t=o([i.destroy,...e]);t.failed&&n(t.failure)};try{const e=[["destroy",l],["restart",i.cancel],["video:loadedmetadata",u]];for(const[n,o]of e){if(i.closed)break;r.push(()=>t.off(n,o)),t.on(n,o),i.closed&&t.off(n,o)}}catch(c){throw l(),c}return{name:"artplayerPluginAutoThumbnail"}},new Promise((e,t)=>{var o=e=>{try{u(r.next(e))}catch(n){t(n)}},a=e=>{try{u(r.throw(e))}catch(n){t(n)}},u=t=>t.done?e(t.value):Promise.resolve(t.value).then(o,a);u((r=r.apply(n,i)).next())});var n,i,r}}return l.default=l,l});