@infinityfx/lively/dist/core/timeline.js

Feature complete, lightweight react animation library.

import t from"./clip.js";import{isLink as s}from"./link.js";import i from"./track.js";import{IndexedMap as e,merge as a}from"./utils.js";class r{constructor({stagger:t=.1,staggerLimit:s=10,deform:i=!0,cachable:a,mountClips:r}){this.index=0,this.paused=!1,this.tracks=new e,this.frame=0,this.linked=[],this.mounted=!1,this.stagger=t,this.staggerLimit=s-1,this.deform=i,this.cachable=a,this.mountClips=r}mount(){this.tracks.forEach((t=>t.correct())),this.mounted=!0}step(){cancelAnimationFrame(this.frame),this.paused||this.tracks.stack.forEach(((t,s)=>t.step(s))),this.frame=requestAnimationFrame(this.step.bind(this))}time(t){return this.tracks.size?t.duration+t.delay+this.stagger*Math.max(Math.min(this.staggerLimit,this.tracks.size-1),0):0}receiver(s,i,e){if(!this.paused)for(let r=0;r<this.tracks.size;r++){const c=this.tracks.stack[r],h=i(r);e.duration?(a(e,{composite:"override"}),new t({...e,[s]:h}).play(c,{})):requestAnimationFrame((()=>{c.apply(s,h),c.correct()}))}}link(i){if(this.step(),!(this.linked.length||!i||i instanceof t))for(let t in i){const e=i[t];if(s(e)){const s=this.receiver.bind(this,t,e);e.subscribe(s),this.linked.push((()=>e.unsubscribe(s))),s({})}}}unlink(){cancelAnimationFrame(this.frame),this.linked.forEach((t=>t())),this.linked=[]}transition(t,s={}){for(let i=0;i<this.tracks.size;i++)this.tracks.stack[i].transition(t?.tracks.stack[i],s)}insert(t){if((t instanceof HTMLElement||t instanceof SVGElement)&&!this.tracks.has(t)){const s=new i(t,this.deform,this.cachable);this.tracks.set(t,s),this.mounted&&this.mountClips.forEach((t=>t.play(s,{})))}}add(t,{immediate:s=!1,composite:i,reverse:e,delay:a=0,commit:r}){let c,h=0;for(;c=this.tracks.stack[h];)c.element.isConnected?(s&&c.clear(),t.play(c,{delay:a+Math.min(h,this.staggerLimit)*(this.stagger<0?t.duration/this.tracks.size:1)*Math.abs(this.stagger),composite:i,reverse:e,commit:r}),h++):this.tracks.delete(c.element)}pause(t){for(const s of this.tracks.stack)s.pause(t);this.paused=t}cache(){for(const t of this.tracks.stack)t.cache.update()}}export{r as default};
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