mirror of
https://github.com/jaandrle/deka-dom-el
synced 2024-11-25 17:49:37 +01:00
5 lines
11 KiB
JavaScript
5 lines
11 KiB
JavaScript
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f=o(i);f.disconnected.has(u)||(f.disconnected.add(u),f.length_d+=1)},offDisconnected(i,u){if(!t.has(i))return;let f=t.get(i);f.disconnected.has(u)&&(f.disconnected.delete(u),f.length_d-=1,r(i,f))}};function r(i,u){u.length_c||u.length_d||(t.delete(i),s())}function o(i){if(t.has(i))return t.get(i);let u={connected:new WeakSet,length_c:0,disconnected:new WeakSet,length_d:0};return t.set(i,u),u}function c(){e||(e=!0,n.observe(document.body,{childList:!0,subtree:!0}))}function s(){!e||t.size||(e=!1,n.disconnect())}function a(){return new Promise(function(i){(requestIdleCallback||requestAnimationFrame)(i)})}async function d(i){t.size>30&&await a();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 p(i,u){let f=!1;for(let m of i){if(u&&d(m).then(p),!t.has(m))continue;let S=t.get(m);S.length_c&&(m.dispatchEvent(new Event("dde:connected")),S.connected=new WeakSet,S.length_c=0,S.length_d||t.delete(m),f=!0)}return f}function x(i,u){let f=!1;for(let m of i)u&&d(m).then(x),!(!t.has(m)||!t.get(m).length_d)&&(m.dispatchEvent(new Event("dde:disconnected")),t.delete(m),f=!0);return f}}var l=Symbol.for("Signal");function D(t){try{return Reflect.has(t,l)}catch{return!1}}var T=[],h=new WeakMap;function b(t,e){if(typeof t!="function")return V(t,e);if(D(t))return t;let n=V(),r=function(){let[o,...c]=h.get(r);if(h.set(r,new Set([o])),T.push(r),n(t()),T.pop(),!c.length)return;let s=h.get(r);for(let a of c)s.has(a)||O(a,r)};return h.set(n[l],r),h.set(r,new Set([n])),r(),n}b.action=function(t,e,...n){let r=t[l],{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))};b.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));F(e,n),o&&o.addEventListener("abort",()=>O(e,n))}};b.symbols={signal:l,onclear:Symbol.for("Signal.onclear")};var A="__dde_attributes";b.attribute=function(t,e=void 0){let n=b(e),r;return g.host(o=>{if(r=o,o instanceof HTMLElement?o.hasAttribute(t)&&n(o.getAttribute(t)):o.hasAttributeNS(null,t)&&n(o.getAttributeNS(null,t)),o[A]){o[A][t]=n;return}return o[A]={[t]:n},v.attributeChanged(function({detail:s}){/*! This maps attributes to signals (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/let[a,d]=s,p=o[A][a];if(p)return p(d)})(o),v.disconnected(function(){/*! This removes all signals mapped to attributes (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/b.clear(...Object.values(o[A])),r=null})(o),o}),new Proxy(n,{apply(o,c,s){if(!s.length)return o();if(!r)return;let a=s[0];return r instanceof HTMLElement?r.setAttribute(t,a):r.setAttributeNS(null,t,a)}})};b.clear=function(...t){for(let n of t){Reflect.deleteProperty(n,"toJSON");let r=n[l];r.onclear.forEach(o=>o.call(r)),e(n,r),Reflect.deleteProperty(n,l)}function e(n,r){r.listeners.forEach(o=>{if(r.listeners.delete(o),!h.has(o))return;let c=h.get(o);c.delete(n),!(c.size>1)&&(b.clear(...c),h.delete(o))})}};var k="__dde_reactive";b.el=function(t,e){let n=E.mark({type:"reactive"},!1),r=n.end,o=document.createDocumentFragment();o.append(n,r);let{current:c}=g,s=a=>{if(!n.parentNode||!r.parentNode)return O(t,s);g.push(c);let d=e(a);g.pop(),Array.isArray(d)||(d=[d]);let p=n;for(;(p=n.nextSibling)!==r;)p.remove();n.after(...d)};return F(t,s),Q(t,s,n,e),s(t()),o};var K={isSignal:D,processReactiveAttribute(t,e,n,r){if(!D(n))return n;let o=c=>r(e,c);return F(n,o),Q(n,o,t,e),n()}};function Q(t,e,...n){let{current:r}=g;r.prevent||r.host(function(o){o[k]||(o[k]=[],v.disconnected(()=>o[k].forEach(([[c,s]])=>O(c,s,c[l]?.host()===o)))(o)),o[k].push([[t,e],...n])})}function V(t,e){let n=(...r)=>r.length?at(n,...r):ft(n);return it(n,t,e)}var st=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),z=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 it(t,e,n){let r=[];U(n)!=="[object Object]"&&(n={});let{onclear:o}=b.symbols;n[o]&&(r.push(n[o]),Reflect.deleteProperty(n,o));let{host:c}=g;return Reflect.defineProperty(t,l,{value:{value:e,actions:n,onclear:r,host:c,listeners:new Set,defined:new z},enumerable:!1,writable:!1,configurable:!0}),t.toJSON=()=>t(),Object.setPrototypeOf(t[l],st),t}function ut(){return T[T.length-1]}function ft(t){if(!t[l])return;let{value:e,listeners:n}=t[l],r=ut();return r&&n.add(r),h.has(r)&&h.get(r).add(t),e}function at(t,e,n){if(!t[l])return;let r=t[l];if(!(!n&&r.value===e))return r.value=e,r.listeners.forEach(o=>o(e)),e}function F(t,e){if(t[l])return t[l].listeners.add(e)}function O(t,e,n){let r=t[l];if(!r)return;let o=r.listeners.delete(e);if(n&&!r.listeners.size){if(b.clear(t),!h.has(r))return o;let c=h.get(r);if(!h.has(c))return o;h.get(c).forEach(s=>O(s,c,!0))}return o}M(K);export{b as S,N as assign,I as assignAttribute,Y as classListDeclarative,E as createElement,mt as createElementNS,xt as dispatchEvent,E as el,mt as elNS,_t as empty,D as isSignal,v as on,M as registerReactivity,g as scope};
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