mirror of
https://github.com/jaandrle/deka-dom-el
synced 2024-11-22 07:49:38 +01:00
5 lines
10 KiB
JavaScript
5 lines
10 KiB
JavaScript
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c(){e||(e=!0,n.observe(document.body,{childList:!0,subtree:!0}))}function s(){!e||t.size||(e=!1,n.disconnect())}function d(){return new Promise(function(i){(requestIdleCallback||requestAnimationFrame)(i)})}async function a(i){t.size>30&&await d();let u=[];if(!(i instanceof Node))return u;for(let f of t.keys())f===i||!(f instanceof Node)||i.contains(f)&&u.push(f);return u}function h(i,u){let f=!1;for(let b of i){if(u&&a(b).then(h),!t.has(b))continue;let x=t.get(b);x.length_c&&(b.dispatchEvent(new Event("dde:connected")),x.connected=new WeakSet,x.length_c=0,x.length_d||t.delete(b),f=!0)}return f}function v(i,u){let f=!1;for(let b of i)u&&a(b).then(v),!(!t.has(b)||!t.get(b).length_d)&&(b.dispatchEvent(new Event("dde:disconnected")),t.delete(b),f=!0);return f}}[HTMLElement,SVGElement,DocumentFragment].forEach(t=>{let{append:e}=t.prototype;t.prototype.append=function(...n){return e.apply(this,n),this}});var p=Symbol.for("Signal");function P(t){try{return Reflect.has(t,p)}catch{return!1}}var j=[],l=new WeakMap;function g(t,e){if(typeof t!="function")return J(t,e);if(P(t))return t;let n=J(),r=function(){let[o,...c]=l.get(r);if(l.set(r,new Set([o])),j.push(r),n(t()),j.pop(),!c.length)return;let s=l.get(r);for(let d of c)s.has(d)||A(d,r)};return l.set(n[p],r),l.set(r,new Set([n])),r(),n}g.action=function(t,e,...n){let r=t[p],{actions:o}=r;if(!o||!Reflect.has(o,e))throw new Error(`'${t}' has no action with name '${e}'!`);if(o[e].apply(r,n),r.skip)return Reflect.deleteProperty(r,"skip");r.listeners.forEach(c=>c(r.value))};g.on=function t(e,n,r={}){let{signal:o}=r;if(!(o&&o.aborted)){if(Array.isArray(e))return e.forEach(c=>t(c,n,r));W(e,n),o&&o.addEventListener("abort",()=>A(e,n))}};g.symbols={signal:p,onclear:Symbol.for("Signal.onclear")};var S="__dde_attributes";g.attribute=function(t,e=void 0){let n=g(e);return m.host(r=>{if(r instanceof HTMLElement?r.hasAttribute(t)&&n(r.getAttribute(t)):r.hasAttributeNS(null,t)&&n(r.getAttributeNS(null,t)),r[S]){r[S][t]=n;return}return r[S]={[t]:n},_.attributeChanged(function({detail:c}){/*! This maps attributes to signals (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/let[s,d]=c,a=r[S][s];a&&a(d)})(r),_.disconnected(function(){/*! This removes all signals mapped to attributes (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/g.clear(...Object.values(r[S]))})(r),r}),n};g.clear=function(...t){for(let n of t){Reflect.deleteProperty(n,"toJSON");let r=n[p];r.onclear.forEach(o=>o.call(r)),e(n,r),Reflect.deleteProperty(n,p)}function e(n,r){r.listeners.forEach(o=>{if(r.listeners.delete(o),!l.has(o))return;let c=l.get(o);c.delete(n),!(c.size>1)&&(g.clear(...c),l.delete(o))})}};var D="__dde_reactive";g.el=function(t,e){let n=document.createComment('<dde:mark type="reactive">'),r=document.createComment("</dde:mark>"),o=document.createDocumentFragment();o.append(n,r);let{current:c}=m,s=d=>{if(!n.parentNode||!r.parentNode)return A(t,s);m.push(c);let a=e(d);m.pop(),Array.isArray(a)||(a=[a]);let h=n;for(;(h=n.nextSibling)!==r;)h.remove();n.after(...a)};return W(t,s),Z(t,s,n,e),s(t()),o};var V={isSignal:P,processReactiveAttribute(t,e,n,r){if(!P(n))return n;let o=c=>r(e,c);return W(n,o),Z(n,o,t,e),n()}};function Z(t,e,...n){let{current:r}=m;r.prevent||r.host(function(o){o[D]||(o[D]=[],_.disconnected(()=>o[D].forEach(([[c,s]])=>A(c,s,c[p]?.host()===o)))(o)),o[D].push([[t,e],...n])})}function J(t,e){let n=(...r)=>r.length?it(n,...r):st(n);return ot(n,t,e)}var rt=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),M=class extends Error{constructor(){super();let[e,...n]=this.stack.split(`
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`),r=e.slice(e.indexOf("@"),e.indexOf(".js:")+4);this.stack=n.find(o=>!o.includes(r))}};function ot(t,e,n){let r=[];F(n)!=="[object Object]"&&(n={});let{onclear:o}=g.symbols;n[o]&&(r.push(n[o]),Reflect.deleteProperty(n,o));let{host:c}=m;return Reflect.defineProperty(t,p,{value:{value:e,actions:n,onclear:r,host:c,listeners:new Set,defined:new M},enumerable:!1,writable:!1,configurable:!0}),t.toJSON=()=>t(),Object.setPrototypeOf(t[p],rt),t}function ct(){return j[j.length-1]}function st(t){if(!t[p])return;let{value:e,listeners:n}=t[p],r=ct();return r&&n.add(r),l.has(r)&&l.get(r).add(t),e}function it(t,e,n){if(!t[p])return;let r=t[p];if(!(!n&&r.value===e))return r.value=e,r.listeners.forEach(o=>o(e)),e}function W(t,e){if(t[p])return t[p].listeners.add(e)}function A(t,e,n){let r=t[p];if(!r)return;let o=r.listeners.delete(e);if(n&&!r.listeners.size){if(g.clear(t),!l.has(r))return o;let c=l.get(r);if(!l.has(c))return o;l.get(c).forEach(s=>A(s,c,!0))}return o}k(V);export{g as S,C as assign,q as assignAttribute,Q as classListDeclarative,lt as createElement,Et as dispatchEvent,lt as el,gt as empty,P as isSignal,_ as on,k as registerReactivity,m as scope};
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