3 lines
15 KiB
JavaScript
3 lines
15 KiB
JavaScript
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t=We(s[e],u[a],l[a],c[i]);f||t===n[i].interpolatorOffsets[e]||(f=!0),n[i].offset[e]=t}f&&(n[i].interpolate=Y(n[i].offset,Z(s),{clamp:!1}),n[i].interpolatorOffsets=[...n[i].offset]),n[i].progress=e(0,1,n[i].interpolate(n[i].current))}function Me(e,t,n,r={}){return{measure:t=>{!function(e,t=e,n){if(n.x.targetOffset=0,n.y.targetOffset=0,t!==e){let r=t;for(;r&&r!==e;)n.x.targetOffset+=r.offsetLeft,n.y.targetOffset+=r.offsetTop,r=r.offsetParent}n.x.targetLength=t===e?t.scrollWidth:t.clientWidth,n.y.targetLength=t===e?t.scrollHeight:t.clientHeight,n.x.containerLength=e.clientWidth,n.y.containerLength=e.clientHeight}(e,r.target,n),function(e,t,n){we(e,"x",t,n),we(e,"y",t,n),t.time=n}(e,n,t),(r.offset||r.target)&&Se(e,n,r)},notify:()=>t(n)}}const Be=new WeakMap,Te=new WeakMap,$e=new WeakMap,Oe=new WeakMap,He=new WeakMap,ze=e=>e===document.scrollingElement?window:e;function Fe(e,{container:t=document.scrollingElement,trackContentSize:n=!1,...r}={}){if(!t)return i;let s=$e.get(t);s||(s=new Set,$e.set(t,s));const o=Me(t,e,{time:0,x:{current:0,offset:[],progress:0,scrollLength:0,targetOffset:0,targetLength:0,containerLength:0,velocity:0},y:{current:0,offset:[],progress:0,scrollLength:0,targetOffset:0,targetLength:0,containerLength:0,velocity:0}},r);if(s.add(o),!Be.has(t)){const e=()=>{for(const e of s)e.measure(h.timestamp);d.preUpdate(n)},n=()=>{for(const e of s)e.notify()},r=()=>d.read(e);Be.set(t,r);const o=ze(t);window.addEventListener("resize",r),t!==document.documentElement&&Te.set(t,(c=r,"function"==typeof(a=t)?pe(a):de(a,c))),o.addEventListener("scroll",r),r()}var a,c;if(n&&!He.has(t)){const e=Be.get(t),n={width:t.scrollWidth,height:t.scrollHeight};Oe.set(t,n);const r=()=>{const r=t.scrollWidth,s=t.scrollHeight;n.width===r&&n.height===s||(e(),n.width=r,n.height=s)},s=d.read(r,!0);He.set(t,s)}const l=Be.get(t);return d.read(l,!1,!0),()=>{g(l);const e=$e.get(t);if(!e)return;if(e.delete(o),e.size)return;const n=Be.get(t);Be.delete(t),n&&(ze(t).removeEventListener("scroll",n),Te.get(t)?.(),window.removeEventListener("resize",n));const r=He.get(t);r&&(g(r),He.delete(t)),Oe.delete(t)}}const Ne=[[Le.Enter,"entry"],[Le.Exit,"exit"],[Le.Any,"cover"],[Le.All,"contain"]];function ke(e,t){if(2!==e.length)return!1;for(let n=0;n<2;n++){const r=e[n],s=t[n];if(!Array.isArray(r)||2!==r.length||r[0]!==s[0]||r[1]!==s[1])return!1}return!0}function Pe(e){if(!e)return{rangeStart:"contain 0%",rangeEnd:"contain 100%"};for(const[t,n]of Ne)if(ke(e,t))return{rangeStart:`${n} 0%`,rangeEnd:`${n} 100%`}}const Re=new Map;function qe(e){const t={value:0},n=Fe(n=>{t.value=100*n[e.axis].progress},e);return{currentTime:t,cancel:n}}function Ve({source:e,container:t,...n}){const{axis:r}=n;e&&(t=e);let s=Re.get(t);s||(s=new Map,Re.set(t,s));const o=n.target??"self";let i=s.get(o);i||(i={},s.set(o,i));const a=r+(n.offset??[]).join(",");if(!i[a])if(n.target&&ve(n.target)){const e=Pe(n.offset);i[a]=e?new 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