mirror of
https://github.com/jaandrle/deka-dom-el
synced 2024-11-25 01:39:37 +01:00
5 lines
12 KiB
JavaScript
5 lines
12 KiB
JavaScript
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o(i){if(t.has(i))return t.get(i);let f={connected:new WeakSet,length_c:0,disconnected:new WeakSet,length_d:0};return t.set(i,f),f}function 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 u(i){t.size>30&&await d();let f=[];if(!(i instanceof Node))return f;for(let a of t.keys())a===i||!(a instanceof Node)||i.contains(a)&&f.push(a);return f}function l(i,f){let a=!1;for(let g of i){if(f&&u(g).then(l),!t.has(g))continue;let A=t.get(g);A.length_c&&(g.dispatchEvent(new Event("dde:connected")),A.connected=new WeakSet,A.length_c=0,A.length_d||t.delete(g),a=!0)}return a}function m(i,f){let a=!1;for(let g of i)f&&u(g).then(m),!(!t.has(g)||!t.get(g).length_d)&&(g.dispatchEvent(new Event("dde:disconnected")),t.delete(g),a=!0);return a}}var p=Symbol.for("observable");function M(t){try{return Reflect.has(t,p)}catch{return!1}}var T=[],h=new WeakMap;function E(t,e){if(typeof t!="function")return X(t,e);if(M(t))return t;let n=X(),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 d of c)s.has(d)||C(d,r)};return h.set(n[p],r),h.set(r,new Set([n])),r(),n}E.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))};E.on=function t(e,n,r={}){let{observable:o}=r;if(!(o&&o.aborted)){if(Array.isArray(e))return e.forEach(c=>t(c,n,r));B(e,n),o&&o.addEventListener("abort",()=>C(e,n))}};E.symbols={observable:p,onclear:Symbol.for("Observable.onclear")};E.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 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This maps attributes to observables (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/let[d,u]=s,l=r[S][d];if(l)return l(u)})(r),_.disconnected(function(){/*! This removes all observables mapped to attributes (`S.attribute`).
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* Investigate `__dde_attributes` key of the element.*/O.clear(...Object.values(r[S]))})(r)}),new Proxy(n,{apply(o,c,s){if(!s.length)return o();let d=s[0];return w(r,"set",t,d)}})};var Y={isObservable:M,processReactiveAttribute(t,e,n,r){if(!M(n))return n;let o=c=>r(e,c);return B(n,o),tt(n,o,t,e),n()}};function tt(t,e,...n){let{current:r}=b;r.prevent||r.host(function(o){o[W]||(o[W]=[],_.disconnected(()=>o[W].forEach(([[c,s]])=>C(c,s,c[p]?.host()===o)))(o)),o[W].push([[t,e],...n])})}function X(t,e){let n=(...r)=>r.length?pt(n,...r):lt(n);return at(n,t,e)}var ut=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),U=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 at(t,e,n){let r=[];H(n)!=="[object Object]"&&(n={});let{onclear:o}=O.symbols;n[o]&&(r.push(n[o]),Reflect.deleteProperty(n,o));let{host:c}=b;return Reflect.defineProperty(t,p,{value:{value:e,actions:n,onclear:r,host:c,listeners:new Set,defined:new U},enumerable:!1,writable:!1,configurable:!0}),t.toJSON=()=>t(),Object.setPrototypeOf(t[p],ut),t}function dt(){return T[T.length-1]}function lt(t){if(!t[p])return;let{value:e,listeners:n}=t[p],r=dt();return r&&n.add(r),h.has(r)&&h.get(r).add(t),e}function pt(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 B(t,e){if(t[p])return t[p].listeners.add(e)}function C(t,e,n){let r=t[p];if(!r)return;let o=r.listeners.delete(e);if(n&&!r.listeners.size){if(t.clear(t),!h.has(r))return o;let c=h.get(r);if(!h.has(c))return o;h.get(c).forEach(s=>C(s,c,!0))}return o}$(Y);export{E as O,j as assign,G as assignAttribute,nt as chainableAppend,rt as classListDeclarative,y as createElement,xt as createElementNS,At as dispatchEvent,y as el,xt as elNS,w as elementAttribute,Ot as empty,M as isObservable,E as observable,_ as on,$ as registerReactivity,b as scope,Et as simulateSlots};
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