/*! All material copyright Esri, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/5.0/esri/copyright.txt for details.
v5.0.0-next.137 */
function g(n){return a(n).length>0}function a(n,t){return l(n.target,t)}function l(n,t){let e=n.assignedElements({flatten:!0});return t?e.filter(s=>s.matches(t)):e}var E=(...n)=>{let t=[];for(let s=0;s<n.length;++s){let o=n[s];if(typeof o=="string")t.push(o);else if(Array.isArray(o))t.push.apply(t,o);else if(typeof o=="object")for(let r in o)o[r]&&t.push(r)}let e=t.join(" ");return t.length=0,e},d=(n,t)=>{let e=n;for(;e;){if(e===t)return!0;if(!e.parentNode)return!1;e.parentNode instanceof ShadowRoot?e=e.parentNode.host:e=e.parentNode}return!1},b=(n,t,e)=>{let s=f(t).subscribe;return s(o=>{o.some(i=>d(n,i.target))&&e()})},c={},f=n=>{let t=n.join(","),e=c[t];if(e!==void 0)return e;let s=new Set,o=new MutationObserver(i=>s.forEach(u=>u(i)));globalThis.document&&o.observe(document.documentElement,{attributes:!0,attributeFilter:n,subtree:!0});let r={subscribe:i=>(s.add(i),()=>{s.delete(i),s.size===0&&(o.disconnect(),c[t]=void 0)})};return c[t]=r,r},h=(n,t)=>{let e=n;for(;e;){let s=e.closest?.(t);if(s)return s;let o=e.getRootNode?.();if(o===globalThis.document)return;e=o.host}};var p=n=>m(n,"dir","ltr"),m=(n,t,e)=>h(n,`[${t}]`)?.getAttribute(t)??e;export{g as a,E as b,b as c,h as d,p as e,m as f};
