/*!
 * KoliBri - The accessible HTML-Standard
 */
import{r as registerInstance,h,H as Host,g as getElement}from"./index-2ae1c631.js";import{r as KolTreeItemTag,q as KolTreeTag}from"./component-names-a18a51c8.js";import{v as validateLabel}from"./label-d0315384.js";import"./prop.validators-9feb1d92.js";import"./index-da3e0c00.js";import"./dev.utils-fab45cbc.js";const KolTreeWc=class{constructor(e){registerInstance(this,e),this.state={_label:""},this._label=void 0}validateLabel(e){validateLabel(this,e)}render(){return h(Host,{key:"7ed304596f8d9f4ab353c881aa3e7a058d23b1cc",onSlotchange:this.handleSlotchange.bind(this)},h("nav",{key:"53d283e8c52792eb96d540a364cd13f6e504a433",class:"kol-tree","aria-label":this.state._label},h("ul",{key:"c2ce2459919900ee430507a5599ff09d54638376",class:"kol-tree__treeview-navigation",role:"tree","aria-label":this.state._label},h("slot",{key:"cba291c46b0bbfe699b154b0333932a1829ff03e"}))))}static isTreeItem(e){return(null==e?void 0:e.tagName)===KolTreeItemTag.toUpperCase()}componentWillLoad(){this.validateLabel(this._label),this.handleTreeChange(),this.observeChildListMutations()}disconnectedCallback(){var e;null===(e=this.observer)||void 0===e||e.disconnect()}observeChildListMutations(){this.observer=new MutationObserver(this.handleTreeChange.bind(this)),this.observeTopLevelItems()}handleSlotchange(){this.observeTopLevelItems(),this.handleTreeChange()}observeTopLevelItems(){var e;null===(e=this.getTopLevelTreeItems())||void 0===e||e.forEach((e=>{var t;null===(t=this.observer)||void 0===t||t.observe(e,{childList:!0,subtree:!0})}))}getTopLevelTreeItems(){var e,t,a;return null===(a=null===(t=null===(e=this.host.querySelector("slot"))||void 0===e?void 0:e.assignedNodes)||void 0===t?void 0:t.call(e))||void 0===a?void 0:a.filter(KolTreeWc.isTreeItem)}handleTreeChange(){this.treeItemElements=this.getTreeItemElements(),this.ensureActiveItemVisibility()}getTreeItemElements(){var e;return null===(e=this.getTopLevelTreeItems())||void 0===e?void 0:e.reduce(((e,t)=>{const a=t.querySelectorAll(KolTreeItemTag);return[...e,t,...a]}),[])}async getOpenTreeItemElements(){if(!this.treeItemElements)return;const e=async t=>!KolTreeWc.isTreeItem(t.parentElement)||await t.parentElement.isOpen()&&await e(t.parentElement);return(await Promise.all(this.treeItemElements.map((async t=>({value:t,include:await e(t)}))))).filter((e=>e.include)).map((e=>e.value))}async handleKeyDown(e){var t,a,l,i,r,s,n,o,c;const d=await this.getOpenTreeItemElements(),v=null===(t=document.activeElement)||void 0===t?void 0:t.closest(KolTreeItemTag);if(!d||!v)return;const u=null==d?void 0:d.findIndex((e=>e===v));switch(e.key){case"ArrowDown":await(null===(a=d[u+1])||void 0===a?void 0:a.focusLink()),e.preventDefault();break;case"ArrowUp":await(null===(l=d[u-1])||void 0===l?void 0:l.focusLink()),e.preventDefault();break;case"Right":case"ArrowRight":e.preventDefault(),await v.isOpen()?await(null===(i=d[u+1])||void 0===i?void 0:i.focusLink()):await v.expand();break;case"Left":case"ArrowLeft":if(e.preventDefault(),await v.isOpen())await v.collapse();else{const e=d.findIndex((e=>e===v.parentElement));-1!==e&&await(null===(r=d[e])||void 0===r?void 0:r.focusLink())}break;case"Home":await(null===(s=d[0])||void 0===s?void 0:s.focusLink()),e.preventDefault();break;case"End":await(null===(n=d[d.length-1])||void 0===n?void 0:n.focusLink()),e.preventDefault();break;case null===(o=e.key.match(/[a-zA-Z0-9]/))||void 0===o?void 0:o.input:{const t=e.key.toLowerCase(),a=d.indexOf(v)+1,l=d.concat(d),i=l.slice(a,a+d.length).findIndex((e=>{var a;return null===(a=e.getAttribute("_label"))||void 0===a?void 0:a.trim().toLowerCase().startsWith(t)}));-1!==i&&(await l[a+i].focusLink(),e.preventDefault());break}case"*":{const e=null===(c=v.parentElement)||void 0===c?void 0:c.querySelectorAll(KolTreeItemTag);null==e||e.forEach((e=>{e.expand()}));break}}}async handleFocusOut(e){e.relatedTarget&&!e.relatedTarget.closest(KolTreeTag)&&await this.ensureActiveItemVisibility()}async ensureActiveItemVisibility(){const e=t=>{KolTreeWc.isTreeItem(t.parentElement)&&(t.parentElement.expand(),e(t.parentElement))},t=(()=>{var e,t,a,l;const i=null!==(l=null===(a=null===(t=null===(e=this.host.querySelector("slot"))||void 0===e?void 0:e.assignedNodes)||void 0===t?void 0:t.call(e))||void 0===a?void 0:a.filter(KolTreeWc.isTreeItem))&&void 0!==l?l:[];for(const e of i){if(e._active)return e;const t=e.querySelector(`${KolTreeItemTag}[_active="true"]`);if(t&&t._active)return t}})();t&&e(t)}get host(){return getElement(this)}static get watchers(){return{_label:["validateLabel"]}}};export{KolTreeWc as kol_tree_wc};