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fix(danmuku): [PKG-DANMUKU-11] start visible lifetime after Worker placement

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Harvey Zhao committed 2026-09-13 22:24:09 +08:00
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commit df6a6fe82e
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packages/artplayer-plugin-danmuku/ARCHITECTURE.md
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@@ -154,6 +154,14 @@ playback enabled, new comments sample speed/playbackRate when allocated; active
comments retain their assigned remaining seconds. Do not change these timing
rules as incidental cleanup.
Successful Worker placement resets the visible start timestamp. Hidden measurement
and Worker waiting do not consume the CSS-visible duration; recording only before
postMessage can recycle a slow reply's comment on its first visible frame. Keep the
remaining lifetime and geometry speed assigned during preparation, and change only
the visible origin after the cancellation/node-identity checks. The delayed Worker
regression in `test/browser/danmuku-lifetime.spec.js` uses real geometry with a
controlled request delay; it does not claim natural Worker starvation.
A rejected `beforeVisible` reports its original error once and excludes that
item from further attempts in the current run. Explicit start, reset, an
invalidation or replacement callback permits another attempt if the item is
packages/artplayer-plugin-danmuku/dist/artplayer-plugin-danmuku.js
Vendored
+1 -1
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@@ -4,4 +4,4 @@
* (c) 2017-2026 Harvey Zhao
* Released under the MIT License.
*/
!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginDanmuku=e(),define(function(){return t.artplayerPluginDanmuku})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginDanmuku=e()}(this,function(){"use strict";function t(t){return t instanceof Promise||"[object Promise]"===Object.prototype.toString.call(t)}function e(t){switch(t){case 1:case 2:case 3:default:return 0;case 4:return 2;case 5:return 1}}function i(t){if("string"!==typeof t)return[];const i=t.matchAll(/<d[^>]*?p="(?<p>[^"]+)"[^>]*>(?<text>.*?)<\/d>/gs);return Array.from(i).map(t=>{const i=t.groups.p.split(",");if(i.length>=8){return{text:t.groups.text.trim().replaceAll("&quot;",'"').replaceAll("&apos;","'").replaceAll("&lt;","<").replaceAll("&gt;",">").replaceAll("&amp;","&"),time:Number(i[0]),mode:e(Number(i[1])),fontSize:Number(i[2]),color:`#${Number(i[3]).toString(16)}`,timestamp:Number(i[4]),pool:Number(i[5]),userID:i[6],rowID:Number(i[7])}}return null}).filter(Boolean)}function n({data:t}){const{xml:e,id:n}=t,a=i(e);globalThis.postMessage({danmus:a,id:n})}let a=0;function s(t,{signal:s,onCancel:r}={}){return new Promise((o,l)=>{let d,c,p,h=!1;const u=++a,m=()=>g(void 0,function(t){if(void 0!==t?.reason)return t.reason;const e=new Error("Bilibili Danmu loading cancelled");return e.name="AbortError",e}(s));function f(){let t,e=!1;try{if(d){const t=d;d=void 0,t.onmessage=null,t.onerror=null,t.onmessageerror=null,t.terminate()}}catch(i){t=i,e=!0}if(void 0!==c){const n=c;c=void 0;try{URL.revokeObjectURL(n)}catch(i){e||(t=i),e=!0}}if(e)throw t}function g(t,e){if(h)return;h=!0;let i=arguments.length>1;s?.removeEventListener("abort",m),p?.();try{f()}catch(n){i||(e=n),i=!0}i?l(e):o(t)}function y(t,e){if(!h){console.error("Error parsing Bilibili Danmu:",e);try{g(i(t))}catch(n){g(void 0,n)}}}s?.aborted?m():(s?.addEventListener("abort",m),p=r?.(m),h?p?.():async function(){const a=s?await fetch(t,{signal:s}):await fetch(t);if(h)return;const r=await a.text();if(!h)try{const t=`\n ${e.toString()}\n ${i.toString()}\n onmessage = ${n.toString()}\n `;if(c=URL.createObjectURL(new Blob([t],{type:"application/javascript"})),h)return void f();if(d=new Worker(c),h)return void f();d.onmessage=t=>{if(h||t.data?.id!==u)return;const{danmus:e}=t.data;Array.isArray(e)?g(e):g(void 0,new Error("Invalid Bilibili Danmu worker response"))},d.onerror=t=>{t.preventDefault?.(),y(r,t.error||t)},d.onmessageerror=t=>y(r,t.error||t),d.postMessage({xml:r,id:u})}catch(o){y(r,o)}}().catch(t=>g(void 0,t)))})}const r=new WeakMap,o=Symbol("cancelled danmuku input");function l(t){return r.has(t)||r.set(t,{closed:!1,tasks:new Set,emitting:[]}),r.get(t)}function d(t){const e=l(t),i=e.emitting[e.emitting.length-1];return!e.closed&&!t.art.isDestroy&&(!i||i.active())}function c(t){const e=l(t);e.closed=!0;for(const i of[...e.tasks])i.cancel()}function p(t,e,i){const n=t.states[e]||[];for(let a=0;a<n.length;a++)i(n[a]);return n}class h{constructor(t){this.owner=t,this.nodes=new Set}acquire(){const t=this.owner.$refs.pop()||document.createElement("div");return t.style.cssText=this.owner.constructor.cssText,t.dataset.mode="",t.dataset.id="",t.className="",this.nodes.add(t),t}get visibles(){const t=[],{clientWidth:e}=this.owner.$player,i=this.owner.getLeft(this.owner.$player);return this.owner.filter("emit",n=>{const a=n.$ref.offsetTop,s=this.owner.getLeft(n.$ref)-i,r=n.$ref.clientHeight,o=n.$ref.clientWidth,l=s+o,d=e-l,c=l/n.$restTime,p={};p.top=a,p.left=s,p.height=r,p.width=o,p.right=d,p.speed=c,p.distance=l,p.time=n.$restTime,p.mode=n.mode,t.push(p)}),t}left(t){const e=t.getBoundingClientRect();return this.owner.isRotate?e.top:e.left}makeWait(t){this.owner.setState(t,"wait"),t.$ref&&(t.$ref.style.cssText=this.owner.constructor.cssText,t.$ref.style.visibility="hidden",t.$ref.style.marginLeft="0px",t.$ref.style.transform="translateX(0px)",t.$ref.style.transition="transform 0s linear 0s",this.owner.$refs.push(t.$ref),t.$ref=null)}resize(){const{clientWidth:t}=this.owner.$player;this.owner.filter("stop",e=>{if(0===e.mode)e.$ref.style.left=`${t}px`}),this.owner.filter("emit",e=>{switch(e.$lastStartTime=Date.now(),e.mode){case 0:{const i=t+e.$ref.clientWidth;e.$ref.style.left=`${t}px`,e.$ref.style.transform=`translateX(${-i}px)`,e.$ref.style.transition=`transform ${e.$restTime}s linear 0s`;break}}})}continue(){const{clientWidth:t}=this.owner.$player;return this.owner.filter("stop",e=>{switch(this.owner.setState(e,"emit"),e.$lastStartTime=Date.now(),e.mode){case 0:{const i=t+e.$ref.clientWidth;e.$ref.style.transform=`translateX(${-i}px)`,e.$ref.style.transition=`transform ${e.$restTime}s linear 0s`;break}}}),this}suspend(){const{clientWidth:t}=this.owner.$player;return this.owner.filter("emit",e=>{switch(this.owner.setState(e,"stop"),e.mode){case 0:{const i=t-(this.owner.getLeft(e.$ref)-this.owner.getLeft(this.owner.$player));e.$ref.style.transform=`translLine truncated
!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginDanmuku=e(),define(function(){return t.artplayerPluginDanmuku})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginDanmuku=e()}(this,function(){"use strict";function t(t){return t instanceof Promise||"[object Promise]"===Object.prototype.toString.call(t)}function e(t){switch(t){case 1:case 2:case 3:default:return 0;case 4:return 2;case 5:return 1}}function i(t){if("string"!==typeof t)return[];const i=t.matchAll(/<d[^>]*?p="(?<p>[^"]+)"[^>]*>(?<text>.*?)<\/d>/gs);return Array.from(i).map(t=>{const i=t.groups.p.split(",");if(i.length>=8){return{text:t.groups.text.trim().replaceAll("&quot;",'"').replaceAll("&apos;","'").replaceAll("&lt;","<").replaceAll("&gt;",">").replaceAll("&amp;","&"),time:Number(i[0]),mode:e(Number(i[1])),fontSize:Number(i[2]),color:`#${Number(i[3]).toString(16)}`,timestamp:Number(i[4]),pool:Number(i[5]),userID:i[6],rowID:Number(i[7])}}return null}).filter(Boolean)}function n({data:t}){const{xml:e,id:n}=t,a=i(e);globalThis.postMessage({danmus:a,id:n})}let a=0;function s(t,{signal:s,onCancel:r}={}){return new Promise((o,l)=>{let d,c,p,h=!1;const u=++a,m=()=>g(void 0,function(t){if(void 0!==t?.reason)return t.reason;const e=new Error("Bilibili Danmu loading cancelled");return e.name="AbortError",e}(s));function f(){let t,e=!1;try{if(d){const t=d;d=void 0,t.onmessage=null,t.onerror=null,t.onmessageerror=null,t.terminate()}}catch(i){t=i,e=!0}if(void 0!==c){const n=c;c=void 0;try{URL.revokeObjectURL(n)}catch(i){e||(t=i),e=!0}}if(e)throw t}function g(t,e){if(h)return;h=!0;let i=arguments.length>1;s?.removeEventListener("abort",m),p?.();try{f()}catch(n){i||(e=n),i=!0}i?l(e):o(t)}function y(t,e){if(!h){console.error("Error parsing Bilibili Danmu:",e);try{g(i(t))}catch(n){g(void 0,n)}}}s?.aborted?m():(s?.addEventListener("abort",m),p=r?.(m),h?p?.():async function(){const a=s?await fetch(t,{signal:s}):await fetch(t);if(h)return;const r=await a.text();if(!h)try{const t=`\n ${e.toString()}\n ${i.toString()}\n onmessage = ${n.toString()}\n `;if(c=URL.createObjectURL(new Blob([t],{type:"application/javascript"})),h)return void f();if(d=new Worker(c),h)return void f();d.onmessage=t=>{if(h||t.data?.id!==u)return;const{danmus:e}=t.data;Array.isArray(e)?g(e):g(void 0,new Error("Invalid Bilibili Danmu worker response"))},d.onerror=t=>{t.preventDefault?.(),y(r,t.error||t)},d.onmessageerror=t=>y(r,t.error||t),d.postMessage({xml:r,id:u})}catch(o){y(r,o)}}().catch(t=>g(void 0,t)))})}const r=new WeakMap,o=Symbol("cancelled danmuku input");function l(t){return r.has(t)||r.set(t,{closed:!1,tasks:new Set,emitting:[]}),r.get(t)}function d(t){const e=l(t),i=e.emitting[e.emitting.length-1];return!e.closed&&!t.art.isDestroy&&(!i||i.active())}function c(t){const e=l(t);e.closed=!0;for(const i of[...e.tasks])i.cancel()}function p(t,e,i){const n=t.states[e]||[];for(let a=0;a<n.length;a++)i(n[a]);return n}class h{constructor(t){this.owner=t,this.nodes=new Set}acquire(){const t=this.owner.$refs.pop()||document.createElement("div");return t.style.cssText=this.owner.constructor.cssText,t.dataset.mode="",t.dataset.id="",t.className="",this.nodes.add(t),t}get visibles(){const t=[],{clientWidth:e}=this.owner.$player,i=this.owner.getLeft(this.owner.$player);return this.owner.filter("emit",n=>{const a=n.$ref.offsetTop,s=this.owner.getLeft(n.$ref)-i,r=n.$ref.clientHeight,o=n.$ref.clientWidth,l=s+o,d=e-l,c=l/n.$restTime,p={};p.top=a,p.left=s,p.height=r,p.width=o,p.right=d,p.speed=c,p.distance=l,p.time=n.$restTime,p.mode=n.mode,t.push(p)}),t}left(t){const e=t.getBoundingClientRect();return this.owner.isRotate?e.top:e.left}makeWait(t){this.owner.setState(t,"wait"),t.$ref&&(t.$ref.style.cssText=this.owner.constructor.cssText,t.$ref.style.visibility="hidden",t.$ref.style.marginLeft="0px",t.$ref.style.transform="translateX(0px)",t.$ref.style.transition="transform 0s linear 0s",this.owner.$refs.push(t.$ref),t.$ref=null)}resize(){const{clientWidth:t}=this.owner.$player;this.owner.filter("stop",e=>{if(0===e.mode)e.$ref.style.left=`${t}px`}),this.owner.filter("emit",e=>{switch(e.$lastStartTime=Date.now(),e.mode){case 0:{const i=t+e.$ref.clientWidth;e.$ref.style.left=`${t}px`,e.$ref.style.transform=`translateX(${-i}px)`,e.$ref.style.transition=`transform ${e.$restTime}s linear 0s`;break}}})}continue(){const{clientWidth:t}=this.owner.$player;return this.owner.filter("stop",e=>{switch(this.owner.setState(e,"emit"),e.$lastStartTime=Date.now(),e.mode){case 0:{const i=t+e.$ref.clientWidth;e.$ref.style.transform=`translateX(${-i}px)`,e.$ref.style.transition=`transform ${e.$restTime}s linear 0s`;break}}}),this}suspend(){const{clientWidth:t}=this.owner.$player;return this.owner.filter("emit",e=>{switch(this.owner.setState(e,"stop"),e.mode){case 0:{const i=t-(this.owner.getLeft(e.$ref)-this.owner.getLeft(this.owner.$player));e.$ref.style.transform=`translLine truncated
packages/artplayer-plugin-danmuku/dist/artplayer-plugin-danmuku.legacy.js
Vendored
+1 -1
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@@ -4,4 +4,4 @@
* (c) 2017-2026 Harvey Zhao
* Released under the MIT License.
*/
!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginDanmuku=e(),define(function(){return t.artplayerPluginDanmuku})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginDanmuku=e()}(this,function(){"use strict";var t=Object.defineProperty,e=Object.defineProperties,i=Object.getOwnPropertyDescriptors,n=Object.getOwnPropertySymbols,a=Object.prototype.hasOwnProperty,s=Object.prototype.propertyIsEnumerable,r=Math.pow,o=(e,i,n)=>i in e?t(e,i,{enumerable:!0,configurable:!0,writable:!0,value:n}):e[i]=n,l=(t,e)=>{for(var i in e||(e={}))a.call(e,i)&&o(t,i,e[i]);if(n)for(var i of n(e))s.call(e,i)&&o(t,i,e[i]);return t},d=(t,n)=>e(t,i(n)),c=(t,e,i)=>new Promise((n,a)=>{var s=t=>{try{o(i.next(t))}catch(e){a(e)}},r=t=>{try{o(i.throw(t))}catch(e){a(e)}},o=t=>t.done?n(t.value):Promise.resolve(t.value).then(s,r);o((i=i.apply(t,e)).next())});function p(t){return t instanceof Promise||"[object Promise]"===Object.prototype.toString.call(t)}function h(t){switch(t){case 1:case 2:case 3:default:return 0;case 4:return 2;case 5:return 1}}function u(t){if("string"!==typeof t)return[];const e=new RegExp('<d[^>]*?p="(?<p>[^"]+)"[^>]*>(?<text>.*?)<\\/d>',"gs"),i=t.matchAll(e);return Array.from(i).map(t=>{const e=t.groups.p.split(",");if(e.length>=8){return{text:t.groups.text.trim().replaceAll("&quot;",'"').replaceAll("&apos;","'").replaceAll("&lt;","<").replaceAll("&gt;",">").replaceAll("&amp;","&"),time:Number(e[0]),mode:h(Number(e[1])),fontSize:Number(e[2]),color:`#${Number(e[3]).toString(16)}`,timestamp:Number(e[4]),pool:Number(e[5]),userID:e[6],rowID:Number(e[7])}}return null}).filter(Boolean)}function m({data:t}){const{xml:e,id:i}=t,n=u(e);globalThis.postMessage({danmus:n,id:i})}let f=0;function g(t,{signal:e,onCancel:i}={}){return new Promise((n,a)=>{let s,r,o,l=!1;const d=++f,p=()=>y(void 0,function(t){if(void 0!==(null==t?void 0:t.reason))return t.reason;const e=new Error("Bilibili Danmu loading cancelled");return e.name="AbortError",e}(e));function g(){let t,e=!1;try{if(s){const t=s;s=void 0,t.onmessage=null,t.onerror=null,t.onmessageerror=null,t.terminate()}}catch(i){t=i,e=!0}if(void 0!==r){const n=r;r=void 0;try{URL.revokeObjectURL(n)}catch(i){e||(t=i),e=!0}}if(e)throw t}function y(t,i){if(l)return;l=!0;let s=arguments.length>1;null==e||e.removeEventListener("abort",p),null==o||o();try{g()}catch(r){s||(i=r),s=!0}s?a(i):n(t)}function v(t,e){if(!l){console.error("Error parsing Bilibili Danmu:",e);try{y(u(t))}catch(i){y(void 0,i)}}}(null==e?void 0:e.aborted)?p():(null==e||e.addEventListener("abort",p),o=null==i?void 0:i(p),l?null==o||o():function(){return c(this,null,function*(){const i=e?yield fetch(t,{signal:e}):yield fetch(t);if(l)return;const n=yield i.text();if(!l)try{const t=`\n ${h.toString()}\n ${u.toString()}\n onmessage = ${m.toString()}\n `;if(r=URL.createObjectURL(new Blob([t],{type:"application/javascript"})),l)return void g();if(s=new Worker(r),l)return void g();s.onmessage=t=>{var e;if(l||(null==(e=t.data)?void 0:e.id)!==d)return;const{danmus:i}=t.data;Array.isArray(i)?y(i):y(void 0,new Error("Invalid Bilibili Danmu worker response"))},s.onerror=t=>{var e;null==(e=t.preventDefault)||e.call(t),v(n,t.error||t)},s.onmessageerror=t=>v(n,t.error||t),s.postMessage({xml:n,id:d})}catch(a){v(n,a)}})}().catch(t=>y(void 0,t)))})}const y=new WeakMap,v=Symbol("cancelled danmuku input");function w(t){return y.has(t)||y.set(t,{closed:!1,tasks:new Set,emitting:[]}),y.get(t)}function k(t){const e=w(t),i=e.emitting[e.emitting.length-1];return!e.closed&&!t.art.isDestroy&&(!i||i.active())}function x(t){const e=w(t);e.closed=!0;for(const i of[...e.tasks])i.cancel()}function b(t,e,i){const n=t.states[e]||[];for(let a=0;a<n.length;a++)i(n[a]);return n}class ${constructor(t){this.owner=t,this.nodes=new Set}acquire(){const t=this.owner.$refs.pop()||document.createElement("div");return t.style.cssText=this.owner.constructor.cssText,t.dataset.mode="",t.dataset.id="",t.className="",this.nodes.add(t),t}get visibles(){const t=[],{clientWidth:e}=this.owner.$player,i=this.owner.getLeft(this.owner.$player);return this.owner.filter("emit",n=>{const a=n.$ref.offsetTop,s=this.owner.getLeft(n.$ref)-i,r=n.$ref.clientHeight,o=n.$ref.clientWidth,l=s+o,d=e-l,c=l/n.$restTime,p={};p.top=a,p.left=s,p.height=r,p.width=o,p.right=d,p.speed=c,p.distance=l,p.time=n.$restTime,p.mode=n.mode,t.push(p)}),t}left(t){const e=t.getBoundingClientRect();return this.owner.isRotate?e.top:e.left}makeWait(t){this.owner.setState(t,"wait"),t.$ref&&(t.$ref.style.cssText=this.owner.constructor.cssText,t.$ref.style.visibility="hidden",t.$ref.style.marginLeft="0px",t.$ref.style.transform="translateX(0px)",t.$ref.style.transition="transform 0s linear 0s",this.owner.$refs.push(t.$ref),t.$ref=null)}resize(){const{clientWidth:t}=this.owner.$player;this.owner.filter("stop",e=>{if(0===e.mode)e.$ref.style.left=`${t}px`}),this.owner.filter("emitLine truncated
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packages/artplayer-plugin-danmuku/dist/artplayer-plugin-danmuku.mjs
Vendored
+1
View File
@@ -680,6 +680,7 @@ class Scheduler {
if (!this.active(operation) || danmu.$ref !== ref)
return;
if (top !== void 0) {
danmu.$lastStartTime = Date.now();
owner.setState(danmu, "emit");
owner.renderer.place(danmu, ref, top, distance, clientWidth);
operation.ref = null;
packages/artplayer-plugin-danmuku/src/scheduler.ts
+2
View File
@@ -175,6 +175,8 @@ export default class Scheduler {
if (!this.active(operation) || danmu.$ref !== ref)
return
if (top !== undefined) {
// The hidden Worker wait must not consume the CSS-visible lifetime.
danmu.$lastStartTime = Date.now()
owner.setState(danmu, 'emit')
owner.renderer.place(danmu, ref, top, distance, clientWidth)
operation.ref = null