scroll-timeline.js

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0,playState:i?"idle":null,readyPromise:null,finishedPromise:null,startTime:null,holdTime:null,rangeDuration:null,previousCurrentTime:null,autoAlignStartTime:!1,pendingPlaybackRate:null,pendingTask:null,specifiedTiming:null,normalizedTiming:null,effect:null,animationRange:i?Tt(t,n["animation-range"]):null,proxy:this})}get effect(){const e=ht.get(this);return e.timeline?(e.effect||(e.effect=function(e){const t=e.animation.effect,n=t.updateTiming,i={apply:function(n){t.getTiming();const i=n.apply(t);if(e.timeline){const t=e.duration??100;i.localTime=Je(e,i.localTime),i.endTime=Je(e,i.endTime),i.activeDuration=Je(e,i.activeDuration);const n=at(e),r=i.iterations?(n-i.delay-i.endDelay)/i.iterations:0;i.duration=n?CSS.percent(t*r/n):CSS.percent(0),void 0===e.timeline.currentTime&&(i.localTime=null)}return i}},r={apply:function(i,r){if(e.specifiedTiming)return e.specifiedTiming;e.specifiedTiming=i.apply(t);let o,s=Object.assign({},e.specifiedTiming);if(s.duration===1/0)throw TypeError("Effect duration cannot be Infinity when used with Scroll Timelines");return(null===s.duration||"auto"===s.duration||e.autoDurationEffect)&&e.timeline&&(e.autoDurationEffect=!0,s.delay=0,s.endDelay=0,o=s.iterations?1e5:0,s.duration=s.iterations?(o-s.delay-s.endDelay)/s.iterations:0,s.duration<0&&(s.duration=0,s.endDelay=o-s.delay),n.apply(t,[s])),e.normalizedTiming=s,e.specifiedTiming}},o={apply:function(n,i,r){if(r&&r.length){if(e.timeline&&r[0]){const t=r[0],n=t.duration;if(n===1/0)throw TypeError("Effect duration cannot be Infinity when used with Scroll Timelines");if(t.iterations===1/0)throw TypeError("Effect iterations cannot be Infinity when used with Scroll Timelines");void 0!==n&&"auto"!==n&&(e.autoDurationEffect=null)}e.specifiedTiming&&n.apply(t,[e.specifiedTiming]),n.apply(t,r),ft(e)}}},s=new Proxy(t,{get:function(e,n){const i=e[n];return"function"==typeof i?i.bind(t):i},set:function(e,t,n){return e[t]=n,!0}});return s.getComputedTiming=new Proxy(t.getComputedTiming,i),s.getTiming=new Proxy(t.getTiming,r),s.updateTiming=new Proxy(t.updateTiming,o),s}(e)),e.effect):e.animation.effect}set effect(e){const t=ht.get(this);t.animation.effect=e,t.effect=null,t.autoDurationEffect=null}get timeline(){const e=ht.get(this);return e.timeline||e.animation.timeline}set timeline(e){const t=ht.get(this),n=this.timeline;if(n==e)return;const i=this.playState,r=this.currentTime;let o,s=at(t);o=null===r?null:0===s?0:Ze(t,r)/s;const a=n instanceof ScrollTimeline,l=e instanceof ScrollTimeline,c=this.pending;if(a&&Ne(t.timeline,t.animation),l)return t.timeline=e,rt(t),t.autoAlignStartTime=!0,t.startTime=null,t.holdTime=null,"running"!==i&&"finished"!==i||(t.readyPromise&&"resolved"!==t.readyPromise.state||Xe(t),t.pendingTask="play",Ae(t.timeline,t.animation,mt.bind(this))),"paused"===i&&null!==o&&(t.holdTime=o*s),c&&(t.readyPromise&&"resolved"!=t.readyPromise.state||Xe(t),t.pendingTask="paused"==i?"pause":"play"),null!==t.startTime&&(t.holdTime=null),void st(t,!1,!1);if(t.animation.timeline!=e)throw TypeError("Unsupported timeline: "+e);if(Ne(t.timeline,t.animation),t.timeline=null,a)switch(null!==r&&(t.animation.currentTime=o*at(t)),i){case"paused":t.animation.pause();break;case"running":case"finished":t.animation.play()}}get startTime(){const e=ht.get(this);return e.timeline?Je(e,e.startTime):e.animation.startTime}set startTime(e){const t=ht.get(this);if(e=Ze(t,e),!t.timeline)return void(t.animation.startTime=e);t.autoAlignStartTime=!1;null==Ze(t,t.timeline.currentTime)&&null!=t.startTime&&(t.holdTime=null,lt(t));const n=Ze(t,this.currentTime);rt(t),t.startTime=e,null!==t.startTime&&0!=t.animation.playbackRate?t.holdTime=null:t.holdTime=n,t.pendingTask&&(t.pendingTask=null,t.readyPromise.resolve(this)),st(t,!0,!1),lt(t)}get currentTime(){const e=ht.get(this);return e.timeline?null!=e.holdTime?Je(e,e.holdTime):Je(e,ot(e)):e.animation.currentTime}set currentTime(e){const t=ht.get(this);t.timeline?(!function(e,t){if(null==t&&null!==e.currentTime)throw new TypeError;t=Ze(e,t),e.autoAlignStartTime=!1,null!==e.holdTime||null===e.startTime||"inactive"===e.timeline.phase||0===e.animation.playbackRate?e.holdTime=t:e.startTime=Ze(e,e.timeline.currentTime)-t/e.animation.playbackRate,"inactive"===e.timeline.phase&&(e.startTime=null),e.previousCurrentTime=null}(t,e),"pause"==t.pendingTask&&(t.holdTime=Ze(t,e),rt(t),t.startTime=null,t.pendingTask=null,t.readyPromise.resolve(this)),st(t,!0,!1)):t.animation.currentTime=e}get playbackRate(){return ht.get(this).animation.playbackRate}set playbackRate(e){const t=ht.get(this);if(!t.timeline)return void(t.animation.playbackRate=e);t.pendingPlaybackRate=null;const n=this.currentTime;t.animation.playbackRate=e,null!==n&&(this.currentTime=n)}get playState(){const e=ht.get(this);if(!e.timeline)return e.animation.playState;const t=Ze(e,this.currentTime);if(null===t&&null===e.startTime&&null==e.pendingTask)return"idle";if("pause"==e.pendingTask||null===e.startTime&&"play"!=e.pendingTask)return"paused";if(null!=t){if(e.animation.playbackRate>0&&t>=at(e))return"finished";if(e.animation.playbackRate<0&&t<=0)return"finished"}return"running"}get rangeStart(){var e;return(null==(e=ht.get(this).animationRange)?void 0:e.start)??"normal"}set rangeStart(e){const t=ht.get(this);if(!t.timeline)return t.animation.rangeStart=e;if(t.timeline instanceof ScrollTimeline){t.animationRange.start=yt(t.timeline,e,"start"),dt(t),lt(t)}}get rangeEnd(){var e;return(null==(e=ht.get(this).animationRange)?void 0:e.end)??"normal"}set rangeEnd(e){const t=ht.get(this);if(!t.timeline)return t.animation.rangeEnd=e;if(t.timeline instanceof ScrollTimeline){t.animationRange.end=yt(t.timeline,e,"end"),dt(t),lt(t)}}get replaceState(){return ht.get(this).animation.pending}get pending(){const e=ht.get(this);return e.timeline?!!e.readyPromise&&"pending"==e.readyPromise.state:e.animation.pending}finish(){const e=ht.get(this);if(!e.timeline)return void e.animation.finish();const t=it(e),n=at(e);if(0==t)throw new DOMException("Cannot finish Animation with a playbackRate of 0.","InvalidStateError");if(t>0&&n==1/0)throw new DOMException("Cannot finish Animation with an infinite target effect end.","InvalidStateError");rt(e);const i=t<0?0:n;this.currentTime=Je(e,i);const r=Ze(e,e.timeline.currentTime);null===e.startTime&&null!==r&&(e.startTime=r-i/e.animation.playbackRate),"pause"==e.pendingTask&&null!==e.startTime&&(e.holdTime=null,e.pendingTask=null,e.readyPromise.resolve(this)),"play"==e.pendingTask&&null!==e.startTime&&(e.pendingTask=null,e.readyPromise.resolve(this)),st(e,!0,!0)}play(){const e=ht.get(this);e.timeline?ut(e):e.animation.play()}pause(){const e=ht.get(this);e.timeline?"paused"!=this.playState&&(null===e.animation.currentTime&&(e.autoAlignStartTime=!0),"play"==e.pendingTask?e.pendingTask=null:e.readyPromise=null,e.readyPromise||Xe(e),e.pendingTask="pause",Ae(e.timeline,e.animation,mt.bind(e.proxy))):e.animation.pause()}reverse(){const e=ht.get(this),t=it(e),n=Ze(e,this.currentTime),i=at(e)==1/0,r=0!=t&&(t<0||n>0||!i);if(!e.timeline||!r)return r&&(e.pendingPlaybackRate=-it(e)),void e.animation.reverse();if("inactive"==e.timeline.phase)throw new DOMException("Cannot reverse an animation with no active timeline","InvalidStateError");this.updatePlaybackRate(-t),ut(e)}updatePlaybackRate(e){const t=ht.get(this);if(t.pendingPlaybackRate=e,!t.timeline)return void t.animation.updatePlaybackRate(e);const n=this.playState;if(!t.readyPromise||"pending"!=t.readyPromise.state)switch(n){case"idle":case"paused":rt(t);break;case"finished":const n=Ze(t,t.timeline.currentTime),i=null!==n?(n-t.startTime)*t.animation.playbackRate:null;t.startTime=0==e?n:null!=n&&null!=i?(n-i)/e:null,rt(t),st(t,!1,!1),lt(t);break;default:ut(t)}}persist(){ht.get(this).animation.persist()}get id(){return ht.get(this).animation.id}set id(e){ht.get(this).animation.id=e}cancel(){const e=ht.get(this);e.timeline?("idle"!=this.playState&&(!function(e){e.pendingTask&&(e.pendingTask=null,rt(e),e.readyPromise.reject(Ye()),Xe(e),e.readyPromise.resolve(e.proxy))}(e),e.finishedPromise&&"pending"==e.finishedPromise.state&&e.finishedPromise.reject(Ye()),e.finishedPromise=new Qe,e.animation.cancel()),e.startTime=null,e.holdTime=null,Ne(e.timeline,e.animation)):e.animation.cancel()}get onfinish(){return ht.get(this).animation.onfinish}set onfinish(e){ht.get(this).animation.onfinish=e}get oncancel(){return ht.get(this).animation.oncancel}set oncancel(e){ht.get(this).animation.oncancel=e}get onremove(){return ht.get(this).animation.onremove}set onremove(e){ht.get(this).animation.onremove=e}get finished(){const e=ht.get(this);return e.timeline?(e.finishedPromise||(e.finishedPromise=new Qe),e.finishedPromise.promise):e.animation.finished}get ready(){const e=ht.get(this);return e.timeline?(e.readyPromise||(e.readyPromise=new Qe,e.readyPromise.resolve(this)),e.readyPromise.promise):e.animation.ready}addEventListener(e,t,n){ht.get(this).animation.addEventListener(e,t,n)}removeEventListener(e,t,n){ht.get(this).animation.removeEventListener(e,t,n)}dispatchEvent(e){ht.get(this).animation.dispatchEvent(e)}}function xt(e,t){const n=t.timeline;n instanceof ScrollTimeline&&delete t.timeline;const i=Ke.apply(this,[e,t]),r=new wt(i,n);if(n instanceof ScrollTimeline){i.pause();ht.get(r).animationRange={start:yt(n,t.rangeStart,"start"),end:yt(n,t.rangeEnd,"end")},r.play()}return r}function bt(e){for(let t=0;t<e.length;++t){let n=pt.get(e[t]);n&&(e[t]=n)}return e}function Ct(e){return bt(Be.apply(this,[e]))}function Et(e){return bt(qe.apply(this,[e]))}const kt={IDENTIFIER:/[\w\\\@_-]+/g,WHITE_SPACE:/\s*/g,NUMBER:/^[0-9]+/,TIME:/^[0-9]+(s|ms)/,SCROLL_TIMELINE:/scroll-timeline\s*:([^;}]+)/,SCROLL_TIMELINE_NAME:/scroll-timeline-name\s*:([^;}]+)/,SCROLL_TIMELINE_AXIS:/scroll-timeline-axis\s*:([^;}]+)/,VIEW_TIMELINE:/view-timeline\s*:([^;}]+)/,VIEW_TIMELINE_NAME:/view-timeline-name\s*:([^;}]+)/,VIEW_TIMELINE_AXIS:/view-timeline-axis\s*:([^;}]+)/,VIEW_TIMELINE_INSET:/view-timeline-inset\s*:([^;}]+)/,ANIMATION_TIMELINE:/animation-timeline\s*:([^;}]+)/,ANIMATION_TIME_RANGE:/animation-range\s*:([^;}]+)/,ANIMATION_NAME:/animation-name\s*:([^;}]+)/,ANIMATION:/animation\s*:([^;}]+)/,ANONYMOUS_SCROLL_TIMELINE:/scroll\(([^)]*)\)/,ANONYMOUS_VIEW_TIMELINE:/view\(([^)]*)\)/},Mt=["block","inline","x","y"],Pt=["nearest","root","self"];const It=new class{constructor(){this.cssRulesWithTimelineName=[],this.nextAnonymousTimelineNameIndex=0,this.anonymousScrollTimelineOptions=new Map,this.anonymousViewTimelineOptions=new Map,this.sourceSelectorToScrollTimeline=[],this.subjectSelectorToViewTimeline=[],this.keyframeNamesSelectors=new Map}transpileStyleSheet(e,t,n){const i={sheetSrc:e,index:0,name:n};for(;i.index<i.sheetSrc.length&&(this.eatWhitespace(i),!(i.index>=i.sheetSrc.length));){if(this.lookAhead("/*",i)){for(;this.lookAhead("/*",i);)this.eatComment(i),this.eatWhitespace(i);continue}const e=this.parseQualifiedRule(i);e&&(t?this.parseKeyframesAndSaveNameMapping(e,i):this.handleScrollTimelineProps(e,i))}const{origin:r}=location;return i.sheetSrc.replace(/url\(("|'?)\//gm,`url($1${r}/`)}getAnimationTimelineOptions(e,t){for(let n=this.cssRulesWithTimelineName.length-1;n>=0;n--){const i=this.cssRulesWithTimelineName[n];try{if(t.matches(i.selector)&&(!i["animation-name"]||i["animation-name"]==e))return{"animation-timeline":i["animation-timeline"],"animation-range":i["animation-range"]}}catch{}}return null}getAnonymousScrollTimelineOptions(e,t){const n=this.anonymousScrollTimelineOptions.get(e);return n?{anonymousSource:n.source,anonymousTarget:t,source:_e(n.source??"nearest",t),axis:n.axis?n.axis:"block"}:null}getScrollTimelineOptions(e,t){const n=this.getAnonymousScrollTimelineOptions(e,t);if(n)return n;for(let i=this.sourceSelectorToScrollTimeline.length-1;i>=0;i--){const n=this.sourceSelectorToScrollTimeline[i];if(n.name==e){const e=this.findPreviousSiblingOrAncestorMatchingSelector(t,n.selector);if(e)return{source:e,...n.axis?{axis:n.axis}:{}}}}return null}findPreviousSiblingOrAncestorMatchingSelector(e,t){let n=e;for(;n;){if(n.matches(t))return n;n=n.previousElementSibling||n.parentElement}return null}getAnonymousViewTimelineOptions(e,t){const n=this.anonymousViewTimelineOptions.get(e);return n?{subject:t,axis:n.axis?n.axis:"block",inset:n.inset?n.inset:"auto"}:null}getViewTimelineOptions(e,t){const n=this.getAnonymousViewTimelineOptions(e,t);if(n)return n;for(let i=this.subjectSelectorToViewTimeline.length-1;i>=0;i--){const n=this.subjectSelectorToViewTimeline[i];if(n.name==e){const e=this.findPreviousSiblingOrAncestorMatchingSelector(t,n.selector);if(e)return{subject:e,axis:n.axis,inset:n.inset}}}return null}handleScrollTimelineProps(e,t){if(e.selector.includes("@keyframes"))return;const n=e.block.contents.includes("animation-name:"),i=e.block.contents.includes("animation-timeline:"),r=e.block.contents.includes("animation:");if(this.saveSourceSelectorToScrollTimeline(e),this.saveSubjectSelectorToViewTimeline(e),!i&&!n&&!r)return;let o=[],s=[],a=!1;i&&(o=this.extractScrollTimelineNames(e.block.contents)),n&&(s=this.extractMatches(e.block.contents,kt.ANIMATION_NAME)),i&&n||(r&&this.extractMatches(e.block.contents,kt.ANIMATION).forEach((t=>{const n=this.extractAnimationName(t);n&&i&&s.push(n),i&&(this.hasDuration(t)||(this.hasAutoDuration(t)&&(e.block.contents=e.block.contents.replace("auto","    ")),e.block.contents=e.block.contents.replace(t," 1s "+t),a=!0))})),a&&this.replacePart(e.block.startIndex,e.block.endIndex,e.block.contents,t)),this.saveRelationInList(e,o,s)}saveSourceSelectorToScrollTimeline(e){const t=e.block.contents.includes("scroll-timeline:"),n=e.block.contents.includes("scroll-timeline-name:"),i=e.block.contents.includes("scroll-timeline-axis:");if(!t&&!n)return;let r=[];if(t){const t=this.extractMatches(e.block.contents,kt.SCROLL_TIMELINE);for(const n of t){const t=this.split(n);let i={selector:e.selector,name:""};1==t.length?i.name=t[0]:2==t.length&&(Mt.includes(t[0])?(i.axis=t[0],i.name=t[1]):(i.axis=t[1],i.name=t[0])),r.push(i)}}if(n){const t=this.extractMatches(e.block.contents,kt.SCROLL_TIMELINE_NAME);for(let n=0;n<t.length;n++)if(n<r.length)r[n].name=t[n];else{let i={selector:e.selector,name:t[n]};r.push(i)}}let o=[];if(i){const t=this.extractMatches(e.block.contents,kt.SCROLL_TIMELINE_AXIS);if(o=t.filter((e=>Mt.includes(e))),o.length!=t.length)throw new Error("Invalid axis")}for(let s=0;s<r.length;s++)o.length&&(r[s].axis=o[s%r.length]);this.sourceSelectorToScrollTimeline.push(...r)}saveSubjectSelectorToViewTimeline(e){const t=e.block.contents.includes("view-timeline:"),n=e.block.contents.includes("view-timeline-name:"),i=e.block.contents.includes("view-timeline-axis:"),r=e.block.contents.includes("view-timeline-inset:");if(!t&&!n)return;let o=[];if(t){const t=this.extractMatches(e.block.contents,kt.VIEW_TIMELINE);for(let n of t){const t=this.split(n);let i={selector:e.selector,name:"",inset:null};1==t.length?i.name=t[0]:2==t.length&&(Mt.includes(t[0])?(i.axis=t[0],i.name=t[1]):(i.axis=t[1],i.name=t[0])),o.push(i)}}if(n){const t=this.extractMatches(e.block.contents,kt.VIEW_TIMELINE_NAME);for(let n=0;n<t.length;n++)if(n<o.length)o[n].name=t[n];else{let i={selector:e.selector,name:t[n],inset:null};o.push(i)}}let s=[],a=[];if(r&&(s=this.extractMatches(e.block.contents,kt.VIEW_TIMELINE_INSET)),i){const t=this.extractMatches(e.block.contents,kt.VIEW_TIMELINE_AXIS);if(a=t.filter((e=>Mt.includes(e))),a.length!=t.length)throw new Error("Invalid axis")}for(let l=0;l<o.length;l++)s.length&&(o[l].inset=s[l%o.length]),a.length&&(o[l].axis=a[l%o.length]);this.subjectSelectorToViewTimeline.push(...o)}hasDuration(e){return e.split(" ").filter((e=>{return t=e,kt.TIME.exec(t);var t})).length>=1}hasAutoDuration(e){return e.split(" ").filter((e=>"auto"===e)).length>=1}saveRelationInList(e,t,n){let i=[];e.block.contents.includes("animation-range:")&&(i=this.extractMatches(e.block.contents,kt.ANIMATION_TIME_RANGE));const r=Math.max(t.length,n.length,i.length);for(let o=0;o<r;o++)this.cssRulesWithTimelineName.push({selector:e.selector,"animation-timeline":t[o%t.length],...n.length?{"animation-name":n[o%n.length]}:{},...i.length?{"animation-range":i[o%i.length]}:{}})}extractScrollTimelineNames(e){const t=kt.ANIMATION_TIMELINE.exec(e)[1].trim(),n=[];return t.split(",").map((e=>e.trim())).forEach((e=>{if(function(e){return(e.startsWith("scroll")||e.startsWith("view"))&&e.includes("(")}(e)){const t=this.saveAnonymousTimelineName(e);n.push(t)}else n.push(e)})),n}saveAnonymousTimelineName(e){const t=":t"+this.nextAnonymousTimelineNameIndex++;return e.startsWith("scroll(")?this.anonymousScrollTimelineOptions.set(t,this.parseAnonymousScrollTimeline(e)):this.anonymousViewTimelineOptions.set(t,this.parseAnonymousViewTimeline(e)),t}parseAnonymousScrollTimeline(e){const t=kt.ANONYMOUS_SCROLL_TIMELINE.exec(e);if(!t)return null;const n=t[1],i={};return n.split(" ").forEach((e=>{Mt.includes(e)?i.axis=e:Pt.includes(e)&&(i.source=e)})),i}parseAnonymousViewTimeline(e){const t=kt.ANONYMOUS_VIEW_TIMELINE.exec(e);if(!t)return null;const n=t[1],i={};return n.split(" ").forEach((e=>{Mt.includes(e)?i.axis=e:i.inset=i.inset?`${i.inset} ${e}`:e})),i}extractAnimationName(e){return this.findMatchingEntryInContainer(e,this.keyframeNamesSelectors)}findMatchingEntryInContainer(e,t){const n=e.split(" ").filter((e=>t.has(e)));return n?n[0]:null}parseIdentifier(e){kt.IDENTIFIER.lastIndex=e.index;const t=kt.IDENTIFIER.exec(e.sheetSrc);if(!t)throw this.parseError(e,"Expected an identifier");return e.index+=t[0].length,t[0]}parseKeyframesAndSaveNameMapping(e,t){if(e.selector.startsWith("@keyframes")){const n=this.replaceKeyframesAndGetMapping(e,t);e.selector.split(" ").forEach(((e,t)=>{t>0&&this.keyframeNamesSelectors.set(e,n)}))}}replaceKeyframesAndGetMapping(e,t){function n(e){return ye.some((t=>e.startsWith(t)))}const i=e.block.contents,r=function(e){let t=0,n=-1,i=-1;const r=[];for(let o=0;o<e.length;o++)"{"==e[o]?t++:"}"==e[o]&&t--,1==t&&"{"!=e[o]&&"}"!=e[o]&&-1==n&&(n=o),2==t&&"{"==e[o]&&(i=o,r.push({start:n,end:i}),n=i=-1);return r}(i);if(0==r.length)return new Map;const o=new Map;let s=!1;const a=[];a.push(i.substring(0,r[0].start));for(let l=0;l<r.length;l++){const e=i.substring(r[l].start,r[l].end);let t=[];e.split(",").forEach((e=>{const i=e.split(" ").map((e=>e.trim())).filter((e=>""!=e)).join(" ");const r=o.size;o.set(r,i),t.push(`${r}%`),n(i)&&(s=!0)})),a.push(t.join(",")),l==r.length-1?a.push(i.substring(r[l].end)):a.push(i.substring(r[l].end,r[l+1].start))}return s?(e.block.contents=a.join(""),this.replacePart(e.block.startIndex,e.block.endIndex,e.block.contents,t),o):new Map}parseQualifiedRule(e){const t=e.index,n=this.parseSelector(e).trim();if(!n)return;return{selector:n,block:this.eatBlock(e),startIndex:t,endIndex:e.index}}removeEnclosingDoubleQuotes(e){let t='"'==e[0]?1:0,n='"'==e[e.length-1]?e.length-1:e.length;return e.substring(t,n)}assertString(e,t){if(e.sheetSrc.substr(e.index,t.length)!=t)throw this.parseError(e,`Did not find expected sequence ${t}`);e.index+=t.length}replacePart(e,t,n,i){if(i.sheetSrc=i.sheetSrc.slice(0,e)+n+i.sheetSrc.slice(t),i.index>=t){const r=i.index-t;i.index=e+n.length+r}}eatComment(e){this.assertString(e,"/*"),this.eatUntil("*/",e,!0),this.assertString(e,"*/")}eatBlock(e){const t=e.index;this.assertString(e,"{");let n=1;for(;0!=n;)this.lookAhead("/*",e)?this.eatComment(e):("{"===e.sheetSrc[e.index]?n++:"}"===e.sheetSrc[e.index]&&n--,this.advance(e));const i=e.index;return{startIndex:t,endIndex:i,contents:e.sheetSrc.slice(t,i)}}advance(e){if(e.index++,e.index>e.sheetSrc.length)throw this.parseError(e,"Advanced beyond the end")}parseError(e,t){return Error(`(${e.name?e.name:"<anonymous file>"}): ${t}`)}eatUntil(e,t,n=!1){const i=t.index;for(;!this.lookAhead(e,t);)this.advance(t);return n&&(t.sheetSrc=t.sheetSrc.slice(0,i)+" ".repeat(t.index-i)+t.sheetSrc.slice(t.index)),t.sheetSrc.slice(i,t.index)}parseSelector(e){let t=e.index;if(this.eatUntil("{",e),t===e.index)throw Error("Empty selector");return e.sheetSrc.slice(t,e.index)}eatWhitespace(e){kt.WHITE_SPACE.lastIndex=e.index;const t=kt.WHITE_SPACE.exec(e.sheetSrc);t&&(e.index+=t[0].length)}lookAhead(e,t){return t.sheetSrc.substr(t.index,e.length)==e}peek(e){return e.sheetSrc[e.index]}extractMatches(e,t,n=","){return t.exec(e)[1].trim().split(n).map((e=>e.trim()))}split(e){return e.split(" ").map((e=>e.trim())).filter((e=>""!=e))}};function Rt(e,t,n,i,r,o){const s=Me(t),a=Pe(t,n);return He(De(e,s,a,i,r),o,De("cover",s,a,i,r),n)}function Nt(e,t,n){const i=It.getAnimationTimelineOptions(t,n);if(!i)return null;const r=i["animation-timeline"];if(!r)return null;let o=It.getScrollTimelineOptions(r,n)||It.getViewTimelineOptions(r,n);return o?(o.subject&&function(e,t){const n=We(t.subject),i=t.axis||t.axis;function r(e,r){let o=null;for(const[s,a]of e)if(s==100*r.offset){if("from"==a)o=0;else if("to"==a)o=100;else{const e=a.split(" ");o=1==e.length?parseFloat(e[0]):100*Rt(e[0],n,t.subject,i,t.inset,CSS.percent(parseFloat(e[1])))}break}return o}const o=It.keyframeNamesSelectors.get(e.animationName);if(o&&o.size){const t=[];e.effect.getKeyframes().forEach((e=>{const n=r(o,e);null!==n&&n>=0&&n<=100&&(e.offset=n/100,t.push(e))}));const n=t.sort(((e,t)=>e.offset<t.offset?-1:e.affset>t.offset?1:0));e.effect.setKeyframes(n)}}(e,o),{timeline:o.source?new ScrollTimeline(o):new $e(o),animOptions:i}):null}function At(){if(CSS.supports("animation-timeline: --works"))return!0;!function(){function e(e){if(0===e.innerHTML.trim().length||"aphrodite"in e.dataset)return;let t=It.transpileStyleSheet(e.innerHTML,!0);t=It.transpileStyleSheet(t,!1),e.innerHTML=t}function t(e){"text/css"!=e.type&&"stylesheet"!=e.rel||!e.href||new URL(e.href,document.baseURI).origin==location.origin&&fetch(e.getAttribute("href")).then((async t=>{const n=await t.text();let i=It.transpileStyleSheet(n,!0);if(i=It.transpileStyleSheet(n,!1),i!=n){const t=new Blob([i],{type:"text/css"}),n=URL.createObjectURL(t);e.setAttribute("href",n)}}))}new MutationObserver((n=>{for(const i of n)for(const n of i.addedNodes)n instanceof HTMLStyleElement&&e(n),n instanceof HTMLLinkElement&&t(n)})).observe(document.documentElement,{childList:!0,subtree:!0}),document.querySelectorAll("style").forEach((t=>e(t))),document.querySelectorAll("link").forEach((e=>t(e)))}();const e=CSS.supports;CSS.supports=t=>(t=t.replaceAll(/(animation-timeline|scroll-timeline(-(name|axis))?|view-timeline(-(name|axis|inset))?|timeline-scope)\s*:/g,"--supported-property:"),e(t)),window.addEventListener("animationstart",(e=>{e.target.getAnimations().filter((t=>t.animationName===e.animationName)).forEach((t=>{const n=Nt(t,t.animationName,e.target);if(n)if(!n.timeline||t instanceof wt)t.timeline=n.timeline;else{const e=new wt(t,n.timeline,n.animOptions);t.pause(),e.play()}}))}))}!function(){if(!At()){if(!Reflect.defineProperty(window,"ScrollTimeline",{value:ScrollTimeline}))throw Error("Error installing ScrollTimeline polyfill: could not attach ScrollTimeline to window");if(!Reflect.defineProperty(window,"ViewTimeline",{value:$e}))throw Error("Error installing ViewTimeline polyfill: could not attach ViewTimeline to window");if(!Reflect.defineProperty(Element.prototype,"animate",{value:xt}))throw Error("Error installing ScrollTimeline polyfill: could not attach WAAPI's animate to DOM Element");if(!Reflect.defineProperty(window,"Animation",{value:wt}))throw Error("Error installing Animation constructor.");if(!Reflect.defineProperty(Element.prototype,"getAnimations",{value:Ct}))throw Error("Error installing ScrollTimeline polyfill: could not attach WAAPI's getAnimations to DOM Element");if(!Reflect.defineProperty(document,"getAnimations",{value:Et}))throw Error("Error installing ScrollTimeline polyfill: could not attach WAAPI's getAnimations to document")}}()}();
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