19 lines
1.3 KiB
JavaScript
19 lines
1.3 KiB
JavaScript
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import {loop,shell,smooth,staticMotion} from '../shared/runtime.js';
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export function mount(element, options = {}) {
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const clean=shell(element,options);
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const chunks=[...element.querySelectorAll('.stream-chunk')],count=element.querySelector('.stream-count'),status=element.querySelector('.stream-status > span'),still=staticMotion(element,options);
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const total=chunks.length,pending=options.content?.pendingStatus ?? '内容陆续就绪',complete=options.content?.completeStatus ?? '全部内容已就绪';
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let previous=-1;
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const clock=loop(element,time=>{
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const staticState=still();let ready=0;
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chunks.forEach((chunk,i)=>{
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const v=staticState?1:smooth((time-.15-i*.65)/.72);
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chunk.style.setProperty('--ready',v);
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chunk.style.setProperty('--skeleton-opacity',1-smooth(v/.38));
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chunk.style.setProperty('--content-opacity',smooth((v-.42)/.58));
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if(v===1)ready++;
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});
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if(ready!==previous){count.textContent=`${ready} / ${total}`;status.textContent=ready===total?complete:pending;previous=ready;}
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},{...options,duration:2.35});
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return{replay:()=>clock.restart(),destroy(){clock.destroy();clean();chunks.forEach(c=>{for(const p of ['--ready','--skeleton-opacity','--content-opacity'])c.style.removeProperty(p);});count.textContent=`${total} / ${total}`;status.textContent=complete;}};
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}
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