mirror of
https://github.com/jaandrle/deka-dom-el
synced 2024-11-22 07:49:38 +01:00
5 lines
11 KiB
JavaScript
5 lines
11 KiB
JavaScript
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o(i,u){u.length_c||u.length_d||(t.delete(i),s())}function r(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 l(i,u){let f=!1;for(let b of i){if(u&&d(b).then(l),!t.has(b))continue;let S=t.get(b);S.length_c&&(b.dispatchEvent(new Event("dde:connected")),S.connected=new WeakSet,S.length_c=0,S.length_d||t.delete(b),f=!0)}return f}function x(i,u){let f=!1;for(let b of i)u&&d(b).then(x),!(!t.has(b)||!t.get(b).length_d)&&(b.dispatchEvent(new Event("dde:disconnected")),t.delete(b),f=!0);return f}}var p=Symbol.for("Signal");function D(t){try{return Reflect.has(t,p)}catch{return!1}}var T=[],h=new WeakMap;function g(t,e){if(typeof t!="function")return V(t,e);if(D(t))return t;let n=V(),o=function(){let[r,...c]=h.get(o);if(h.set(o,new Set([r])),T.push(o),n(t()),T.pop(),!c.length)return;let s=h.get(o);for(let a of c)s.has(a)||O(a,o)};return h.set(n[p],o),h.set(o,new Set([n])),o(),n}g.action=function(t,e,...n){let o=t[p],{actions:r}=o;if(!r||!Reflect.has(r,e))throw new Error(`'${t}' has no action with name '${e}'!`);if(r[e].apply(o,n),o.skip)return Reflect.deleteProperty(o,"skip");o.listeners.forEach(c=>c(o.value))};g.on=function t(e,n,o={}){let{signal:r}=o;if(!(r&&r.aborted)){if(Array.isArray(e))return e.forEach(c=>t(c,n,o));z(e,n),r&&r.addEventListener("abort",()=>O(e,n))}};g.symbols={signal:p,onclear:Symbol.for("Signal.onclear")};var A="__dde_attributes";g.attribute=function(t,e=void 0){let n=g(e),o;return E.host(r=>{if(o=r,r instanceof HTMLElement?r.hasAttribute(t)&&n(r.getAttribute(t)):r.hasAttributeNS(null,t)&&n(r.getAttributeNS(null,t)),r[A]){r[A][t]=n;return}return r[A]={[t]:n},m.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,l=r[A][a];if(l)return l(d)})(r),m.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[A])),o=null})(r),r}),new Proxy(n,{apply(r,c,s){if(!s.length)return r();if(!o)return;let a=s[0];return o instanceof HTMLElement?o.setAttribute(t,a):o.setAttributeNS(null,t,a)}})};g.clear=function(...t){for(let n of t){Reflect.deleteProperty(n,"toJSON");let o=n[p];o.onclear.forEach(r=>r.call(o)),e(n,o),Reflect.deleteProperty(n,p)}function e(n,o){o.listeners.forEach(r=>{if(o.listeners.delete(r),!h.has(r))return;let c=h.get(r);c.delete(n),!(c.size>1)&&(g.clear(...c),h.delete(r))})}};var k="__dde_reactive";g.el=function(t,e){let n=v.mark({type:"reactive"},!1),o=n.end,r=document.createDocumentFragment();r.append(n,o);let{current:c}=E,s=a=>{if(!n.parentNode||!o.parentNode)return O(t,s);E.push(c);let d=e(a);E.pop(),Array.isArray(d)||(d=[d]);let l=n;for(;(l=n.nextSibling)!==o;)l.remove();n.after(...d)};return z(t,s),Q(t,s,n,e),s(t()),r};var K={isSignal:D,processReactiveAttribute(t,e,n,o){if(!D(n))return n;let r=c=>o(e,c);return z(n,r),Q(n,r,t,e),n()}};function Q(t,e,...n){let{current:o}=E;o.prevent||o.host(function(r){r[k]||(r[k]=[],m.disconnected(()=>r[k].forEach(([[c,s]])=>O(c,s,c[p]?.host()===r)))(r)),r[k].push([[t,e],...n])})}function V(t,e){let n=(...o)=>o.length?at(n,...o):ft(n);return it(n,t,e)}var st=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),$=class extends Error{constructor(){super();let[e,...n]=this.stack.split(`
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`),o=e.slice(e.indexOf("@"),e.indexOf(".js:")+4);this.stack=n.find(r=>!r.includes(o))}};function it(t,e,n){let o=[];F(n)!=="[object Object]"&&(n={});let{onclear:r}=g.symbols;n[r]&&(o.push(n[r]),Reflect.deleteProperty(n,r));let{host:c}=E;return Reflect.defineProperty(t,p,{value:{value:e,actions:n,onclear:o,host:c,listeners:new Set,defined:new $},enumerable:!1,writable:!1,configurable:!0}),t.toJSON=()=>t(),Object.setPrototypeOf(t[p],st),t}function ut(){return T[T.length-1]}function ft(t){if(!t[p])return;let{value:e,listeners:n}=t[p],o=ut();return o&&n.add(o),h.has(o)&&h.get(o).add(t),e}function at(t,e,n){if(!t[p])return;let o=t[p];if(!(!n&&o.value===e))return o.value=e,o.listeners.forEach(r=>r(e)),e}function z(t,e){if(t[p])return t[p].listeners.add(e)}function O(t,e,n){let o=t[p];if(!o)return;let r=o.listeners.delete(e);if(n&&!o.listeners.size){if(g.clear(t),!h.has(o))return r;let c=h.get(o);if(!h.has(c))return r;h.get(c).forEach(s=>O(s,c,!0))}return r}M(K);export{g as S,N as assign,I as assignAttribute,Y as classListDeclarative,v as createElement,bt as createElementNS,xt as dispatchEvent,v as el,bt as elNS,_t as empty,D as isSignal,m as on,M as registerReactivity,E as scope};
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