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,r=Object.prototype.propertyIsEnumerable,i=(t,n,r)=>n in t?e(t,n,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[n]=r;function o(e){let t,n=!1;for(const i of e)try{i()}catch(r){n||(n=!0,t=r)}return{failed:n,failure:t}}function a(e,a){let u,l,d=!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(d)return;const f=u,m=[];let h=!1;const v={active:()=>!d&&!h&&u===v,own(e){if(h){const t=o([e]);t.failed&&a(t.failure)}else m.push(e)},dispose(){if(h)return;h=!0,u===v&&(u=void 0);const e=o(m.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,d){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 m=l;l=f;try{e(((e,o)=>{for(var a in o||(o={}))n.call(o,a)&&i(e,a,o[a]);if(t)for(var a of t(o))r.call(o,a)&&i(e,a,o[a]);return e})({url:f},d))}catch(h){l===f&&(l=void 0!==m&&c.has(m)?m:void 0);const e=o([()=>s(f)]);throw e.failed&&a(e.failure),h}s(m)}};return u=v,null==f||f.dispose(),v},cancel:f,destroy:function(){if(d)return;d=!0;const e=o([f,...[...c].map(e=>()=>s(e))]);l=void 0,e.failed&&a(e.failure)},get closed(){return d}}}function u(e,t){const n="function"===typeof t.requestVideoFrameCallback&&"function"===typeof t.cancelVideoFrameCallback;let r;function i(){const e=r;r=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(i),(o,a)=>{if(i(),!e.active())return;const u={frame:null,timer:null,sought:!1,presented:!n,retries:0,sequence:0,started:!1};r=u;const l=()=>e.active()&&r===u,d=e.guard(()=>{l()&&u.sought&&u.presented&&(i(),e.active()&&a())}),c=()=>{u.sought=!1,(()=>{if(!n)return;const r=++u.sequence;u.presented=!1;const i=u.frame;if(u.frame=null,null!==i&&t.cancelVideoFrameCallback(i),!l())return;let o=!1;const a=t.requestVideoFrameCallback(e.guard(()=>{l()&&r===u.sequence&&!o&&(o=!0,u.frame=null,u.presented=!0,d())}));l()&&r===u.sequence&&!o?u.frame=a:t.cancelVideoFrameCallback(a)})(),l()&&(t.currentTime=o)},s=e.guard(()=>{l()&&!u.started&&(u.started=!0,t.onloadeddata=null,t.onseeked=e.guard(()=>{if(!l()||t.seeking)return;const e=t.currentTime;if(l())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,d()}),c())});if(u.timer=setTimeout(e.guard(()=>{if(l())throw new Error("Auto-thumbnail frame readiness timed out")}),3e4),!l())return void clearTimeout(u.timer);const f=!n||t.readyState>=2;l()&&(f?s():t.onloadeddata=s)}}function l(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);if(!e.active())return;let r=null;const i=()=>{const e=r;r=null,null!==e&&clearTimeout(e)};e.own(i),n.onerror=e.guard(()=>{throw n.error||new Error("Auto-thumbnail media failed to load")}),n.onloadedmetadata=e.guard(()=>{i(),n.onloadedmetadata=null;const r=n.duration,o=n.videoHeight,a=n.videoWidth,{height:l,canvasWidth:d,canvasHeight:c}=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),r=Math.trunc(10*e.width),i=Math.trunc(n*Math.ceil(e.number/10));if(![n,r,i].every(e=>Number.isSafeInteger(e)&&e>0&&e<=4294967295))throw new RangeError("Auto-thumbnail canvas dimensions are invalid");return{height:n,canvasWidth:r,canvasHeight:i}}(t,{duration:r,videoHeight:o,videoWidth:a});if(!e.active())return;n.width=a,n.height=o,n.style.width=`${a}px`,n.style.height=`${o}px`;const s=document.createElement("canvas");if(e.own(()=>{s.height=0}),e.own(()=>{s.width=0}),!e.active())return;if(s.width=d,!e.active())return;if(s.height=c,!e.active())return;const f=s.getContext("2d");if(!f)throw new Error("Auto-thumbnail canvas context is unavailable");if(!e.active())return;const m=u(e,n),h=function(e,t){let n;function r(){const e=n;n=void 0,e&&null!==e.timer&&clearTimeout(e.timer)}return e.own(r),i=>{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()&&(r(),e.active()&&i(t))}),"image/jpeg"):clearTimeout(o.timer)}}(e,s);let v=0;const b=e.guard(()=>{v>=t.number?e.dispose():m(r*v/t.number,e.guard(()=>{f.drawImage(n,v%10*t.width,Math.floor(v/10)*l,t.width,l),e.active()&&h(n=>{e.publish(n,{height:l,column:10,number:t.number,width:t.width,scale:t.scale}),e.active()&&(v+=1,b())})}))});b()}),e.active()&&(r=setTimeout(e.guard(()=>{if(null!==r)throw new Error("Auto-thumbnail metadata timed out")}),3e4),e.active()?n.src=t.url:i())}function d(e){return t=>{return n=null,r=null,i=function*(){if(t.isDestroy)return{name:"artplayerPluginAutoThumbnail"};const n=e=>console.warn("ArtPlayer auto-thumbnail failed:",e),r=a(e=>{t.thumbnails=e},n),i=[],u=()=>{const n=r.start();n&&n.guard(()=>{const r=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()&&l(n,r)})()},d=()=>{const e=i.splice(0),t=o([r.destroy,...e]);t.failed&&n(t.failure)};try{const e=[["destroy",d],["restart",r.cancel],["video:loadedmetadata",u]];for(const[n,o]of e){if(r.closed)break;i.push(()=>t.off(n,o)),t.on(n,o),r.closed&&t.off(n,o)}}catch(c){throw d(),c}return{name:"artplayerPluginAutoThumbnail"}},new Promise((e,t)=>{var o=e=>{try{u(i.next(e))}catch(n){t(n)}},a=e=>{try{u(i.throw(e))}catch(n){t(n)}},u=t=>t.done?e(t.value):Promise.resolve(t.value).then(o,a);u((i=i.apply(n,r)).next())});var n,r,i}}return d.default=d,d});