https://netnr.com/chunks/2283.e9ba9e0ec6f162512371.js

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1w o(this.container,{rowHeight:this.options.rowHeight,bufferSize:this.options.bufferSize}),this._vscroll.onScroll(()=>this._renderVisible()),this._bindEvents(),this.render(),this._visibleObserver=new IntersectionObserver(e=>{for(let t of e)t.isIntersecting&&requestAnimationFrame(()=>this._renderVisible())},{threshold:0}),this._visibleObserver.observe(this.container)}_getOrCreateRenderContainer(){return this._renderContainer||(this._renderContainer=this._vscroll.spacer),this._renderContainer}_normalizeData(e,t=null){return e&&0!==e.length?e.some(e=>"pid"in e)?this._buildTreeFromFlat(e):e.map(e=>this._createNode(e,t)):[]}_createNode(e,t=null){let i=e.children&&e.children.length>0,s=this.options.lazy,l=s?!0===e.expanded||i&&!1!==e.expanded:!1!==e.expanded,n={id:void 0!==e.id&&null!==e.id?e.id:this._generateId(),text:e.text||"新节点",icon:e.icon||(i?"folder":"file"),expanded:l,children:[],pid:t,data:e.data||{},loading:!1,loaded:!s||i,isLeaf:e.isLeaf||!1,description:e.description||"",badge:e.badge||"",badgeType:e.badgeType||"default",title:e.title||"",textHtml:e.textHtml||""};return this._index.set(n.id,n),e.children&&e.children.length>0&&(n.children=e.children.map(e=>this._createNode(e,n.id))),n}_buildTreeFromFlat(e){let t=new Map,i=[],s=this.options.lazy;return e.forEach(e=>{let i={id:void 0!==e.id&&null!==e.id?e.id:this._generateId(),text:e.text||"新节点",icon:e.icon||"file",expanded:s?!0===e.expanded:!1!==e.expanded,children:[],pid:void 0!==e.pid&&null!==e.pid?e.pid:null,data:e.data||{},loading:!1,loaded:!s,isLeaf:e.isLeaf||!1,description:e.description||"",badge:e.badge||"",badgeType:e.badgeType||"default",title:e.title||"",textHtml:e.textHtml||""};t.set(i.id,i),this._index.set(i.id,i)}),t.forEach(e=>{null!=e.pid&&t.has(e.pid)?t.get(e.pid).children.push(e):i.push(e)}),t.forEach(t=>{var i;!(t.children.length>0)||(null==(i=e.find(e=>e.id===t.id))?void 0:i.icon)||(t.icon="folder")}),i}_generateId(){return`_${Date.now()}_${Math.random().toString(36).substring(2,6)}`}findNode(e){let t=this._index.get(e);if(!t&&"string"==typeof e){let i=Number(e);isNaN(i)||String(i)!==e||(t=this._index.get(i))}return t||null}findParent(e){return e&&null!=e.pid&&this._index.get(e.pid)||null}_getSiblings(e){let t=this.findParent(e);return t?t.children:this.data}_rebuildIndex(){this._index.clear();let e=t=>{for(let i of t)this._index.set(i.id,i),i.children.length>0&&e(i.children)};e(this.data)}_computeFlatList(e=this.data,t=0,i=[],s=[]){for(let l=0;l<e.length;l++){let n=e[l];if(this._filterKeyword&&"hide"===this.options.filterMode&&!this._isNodeVisible(n))continue;let r=!!(this._filterKeyword&&"hide"===this.options.filterMode),d=l===e.length-1;if(r&&!d){d=!0;for(let t=l+1;t<e.length;t++)if(this._isNodeVisible(e[t])){d=!1;break}}let o=null;if(this.options.showLines){let e=[];for(let i=0;i<t;i++){if(s[i])continue;let t=12*i+8;e.push({left:t,isLast:!1})}if(t>0){let i=12*t+8;e.push({left:i,isLast:d})}e.length>0&&(o={verticalLines:e})}if(i.push({node:n,depth:t,lines:o}),n.expanded){if(n.loading&&!n.loaded){let e=null;if(o){let i=[];for(let e of o.verticalLines)i.push({left:e.left,isLast:!1});let s=12*t+8;i.push({left:s,isLast:!1}),e={verticalLines:i}}i.push({node:{_isLoading:!0,id:"_loading_"+n.id},depth:t+1,lines:e})}else if(n.children&&n.children.length>0){let e=[...s,d];this._computeFlatList(n.children,t+1,i,e)}}}return i}_isNodeVisible(e){if(this._filterMatchIds.has(e.id))return!0;for(let t of e.children||[])if(this._isNodeVisible(t))return!0;return!1}render(){if(this.editingNode)return;this._flatList=this._computeFlatList();let e=this._getOrCreateRenderContainer();if(0===this._flatList.length&&!this._filterKeyword){this._vscroll.update(0),e.innerHTML=`<div class="nrc-tree-empty">
2    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1">
3        <path d="M10 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2h-8l-2-2z"/>
4    </svg>
5    <p>暂无数据</p>
6</div>`;return}e.querySelectorAll(".nrc-tree-node").forEach(e=>e.remove()),this._vscroll.update(this._flatList.length),0!==this._flatList.length&&this._renderVisible()}_renderVisible(){if(0===this._flatList.length)return;let e=this._vscroll.getVisibleRange(),t=this._getOrCreateRenderContainer();

6t.querySelectorAll(".nrc-tree-node").forEach(e=>e.remove());let{renderStart:i,renderEnd:s}=e,n=[];for(let e=i;e<s&&e<this._flatList.length;e++){let{node:t,depth:i,lines:s}=this._flatList[e];if(t._isLoading){let t=function(e=0,t={},i=null){let s=t.loading||l.loading,n="";if(i&&i.verticalLines){let e=[];for(let t of i.verticalLines){let i=t.isLast?"nrc-tree-vline nrc-tree-vline-last":"nrc-tree-vline";e.push(`<span class="${i}" style="left:${t.left}px"></span>`)}e.length>0&&(n=`<div class="nrc-tree-lines">${e.join("")}</div>`)}return`<div class="nrc-tree-node nrc-tree-loading" data-loading="true">
7    <div class="nrc-tree-item" style="padding-left:${12*e}px">
8        ${n}
9        <div class="nrc-tree-toggle empty"></div>
10        <div class="nrc-tree-icon">${s}</div>
11        <span class="nrc-tree-text nrc-tree-text-loading">加载中...</span>
12    </div>
13</div>`}(i,this.icons,s),r=this._htmlToElement(t);r.style.position="absolute",r.style.top=e*this.options.rowHeight+"px",r.style.left="0",r.style.right="0",n.push(r);continue}let o=this.options.onRenderNode?this.options.onRenderNode(t):null,a=this._selectedIds.has(t.id),h=e*this.options.rowHeight,c=function(e,t={}){var i;let s,{depth:n=0,selected:o=!1,lazy:a=!1,icons:h={},customRender:c=null,filterKeyword:g="",filterMode:u="hide",filterMatch:p=!0,top:f=null,lines:v=null}=t,_=function(e,t){if(e.loading)return t.loading||l.loading;let i=e.icon;return i&&t[i]?"folder"===i&&e.expanded&&!e.isLeaf?t.folderOpen||l.folderOpen:t[i]:!e.isLeaf&&e.children&&e.children.length>0?e.expanded?t.folderOpen||l.folderOpen:t.folder||l.folder:t.file||l.file}(c?{...e,icon:c.icon||e.icon}:e,h),m=d(e,a),x=["nrc-tree-toggle",e.expanded?"expanded":"",!m?"empty":""].filter(Boolean).join(" "),b=["nrc-tree-item",o?"selected":"",g&&!p&&"hide"===u?"filtered-out":""].filter(Boolean).join(" "),w=null!=(i=null==c?void 0:c.textHtml)?i:e.textHtml;w?s=w:(s=r(e.text),g&&"highlight"===u&&p&&(s=function(e,t){if(!t)return r(e);let i=r(e),s=r(t),l=RegExp(`(${s.replace(/[.*+?^${}()|[\]\\]/g,"\\$&")})`,"gi");return i.replace(l,"<mark>$1</mark>")}(e.text,g)));let L=(null==c?void 0:c.description)||e.description||"",C=L?`<span class="nrc-tree-desc">${r(L)}</span>`:"",N=(null==c?void 0:c.badge)||e.badge||"",y=(null==c?void 0:c.badgeType)||e.badgeType||"default",M=N?`<span class="nrc-tree-badge nrc-tree-badge-${r(y)}">${r(N)}</span>`:"",S=null!==f?`style="position:absolute;top:${f}px;left:0;right:0"`:"",A="";if(v&&v.verticalLines){let e=[];for(let t of v.verticalLines){let i=t.isLast?"nrc-tree-vline nrc-tree-vline-last":"nrc-tree-vline";e.push(`<span class="${i}" style="left:${t.left}px"></span>`)}e.length>0&&(A=`<div class="nrc-tree-lines">${e.join("")}</div>`)}let z=(null==c?void 0:c.title)||e.title||"",H=z?` title="${null==z?"":r(z).replace(/"/g,"&quot;").replace(/\n/g,"&#10;").replace(/\r/g,"")}"`:"";return`<div class="nrc-tree-node" data-id="${r(e.id)}" ${S}>
14    <div class="${b}" draggable="${!1!==t.draggable?"true":"false"}"
15         style="--depth:${n};padding-left:${12*n}px"${H}>
16        ${A}
17        <div class="${x}">
18            ${h.chevronRight||l.chevronRight}
19        </div>
20        <div class="nrc-tree-icon">${_}</div>
21        <span class="nrc-tree-text">${s}</span>
22        ${C}
23        ${M}
24    </div>
25</div>`}(t,{depth:i,selected:a,lazy:this.options.lazy,icons:this.icons,customRender:o,filterKeyword:this._filterKeyword,filterMode:this.options.filterMode,filterMatch:!this._filterKeyword||this._filterMatchIds.has(t.id),draggable:this.options.draggable,top:h,lines:s});n.push(this._htmlToElement(c))}let o=document.createDocumentFragment();n.forEach(e=>o.appendChild(e)),t.appendChild(o)}_htmlToElement(e){let t=document.createElement("template");return t.innerHTML=e.trim(),t.content.firstElementChild}toggleNode(e){if(!e||e._isLoading||e.loading)return;let t=!e.expanded;if(this.options.lazy&&t&&!e.loaded&&!e.isLeaf){e.expanded=!0,this._loadChildren(e);return}e.expanded=!e.expanded,this.render(),this._emitStateChange()}async _loadChildren(e){if(!this.options.onLoadChildren){e.loaded=!0,this.render();return}e.loading=!0,this.render();try{let t=await this.options.onLoadChildren(e),i=Array.isArray(t)?t:[];for(let t of e.children)this._removeFromIndex(t);e.children=i.map(t=>this._createNode(t,e.id)),e.loaded=!0}catch(e){console.error("nrcTree: loadChildren failed",e)}finally{e.loading=!1}this.render()}_removeFromIndex(e){for(let t of(this._index.delete(e.id),e.children||[]))this._removeFromIndex(t)}reloadNode(e){e&&(e.loaded=!1,e.children=[],e.expanded=!0,this.options.lazy?this._loadChildren(e):this.render())}setChildren(e,t){if(e){for(let t of e.children)this._removeFromIndex(t);e.children=(t||[]).map(t=>this._createNode(t,e.id)),e.loaded=!0,e.loading=!1,e.expanded&&this.render()}}selectNode(e,t={}){if(!e||e._isLoading)return;let{ctrlKey:i=!1,shiftKey:s=!1}=t;if(!this.options.multiSelect&&!i&&!s&&1===this._selectedIds.size&&this._selectedIds.has(e.id)){this.options.onSelect&&this.options.onSelect(e);return}let l=new Set(this._selectedIds);this.options.multiSelect?s&&null!=this._anchorId?this._rangeSelect(this._anchorId,e.id):(i?this._toggleSelect(e.id):(this._selectedIds.clear(),this._selectedIds.add(e.id)),this._anchorId=e.id):(this._selectedIds.clear(),this._selectedIds.add(e.id)),this.selectedNode=e;let n=new Set([...l,...this._selectedIds]);if(s)this._renderVisible();else for(let e of n){let t=this.container.querySelector(`[data-id="${CSS.escape(String(e))}"]`);if(t){let i=t.querySelector(".nrc-tree-item");i&&i.classList.toggle("selected",this._selectedIds.has(e))}}this.options.onSelect&&this.options.onSelect(e),this._emitStateChange()}addNode(e=null,t={}){let i={id:void 0!==t.id&&null!==t.id?t.id:this._generateId(),text:t.text||"新建节点",icon:t.icon||"file",expanded:void 0===t.expanded||t.expanded,children:[],pid:e?e.id:null,data:t.data||{},loading:!1,loaded:!0,isLeaf:t.isLeaf||!1,description:t.description||"",badge:t.badge||"",badgeType:t.badgeType||"default",title:t.title||"",textHtml:t.textHtml||""};return this._index.set(i.id,i),e?(e.children.push(i),e.expanded=!0,"file"===e.icon&&(e.icon="folder")):this.data.push(i),this.render(),this.scrollToNode(i),this.selectNode(i),this.startRename(i),this.options.onCreate&&this.options.onCreate(i),i}deleteNode(e){if(!e||e._isLoading||this.options.onBeforeDelete&&!1===this.options.onBeforeDelete(e))return;let t=this._getSiblings(e),i=t.indexOf(e);i>-1&&t.splice(i,1),this._removeFromIndex(e),this._selectedIds.delete(e.id),this.selectedNode&&this.selectedNode.id===e.id&&(this.selectedNode=null),this.render(),this.options.onDelete&&this.options.onDelete(e)}moveNode(e,t,i){if(!this._isDescendant(e,t)&&(!this.options.onBeforeDrop||!1!==this.options.onBeforeDrop(e,t,i))){if(this._removeFromSiblings(e),"inside"===i)t.children.push(e),e.pid=t.id,t.expanded=!0,"file"===t.icon&&(t.icon="folder");else{let s=this._getSiblings(t),l=s.indexOf(t);s.splice("before"===i?l:l+1,0,e);let n=this.findParent(t);e.pid=n?n.id:null}this.render(),this.selectNode(e),this.options.onDrop&&this.options.onDrop(e,t,i)}}_removeFromSiblings(e){let t=this._getSiblings(e),i=t.indexOf(e);i>-1&&t.splice(i,1)}_isDescendant(e,t){if(e.id===t.id)return!0;for(let i of e.children)if(this._isDescendant(i,t))return!0;return!1}_toggleSelect(e){this._selectedIds.has(e)?this._selectedIds.delete(e):this._selectedIds.add(e)}_rangeSelect(e,t){let i=!1;for(let{node:s}of this._flatList)if(!s._isLoading)if(s.id===e||s.id===t)if(i){this._selectedIds.add(s.id);break}else i=!0,this._selectedIds.add(s.id);else i&&this._selectedIds.add(s.id)}getSelectedNodes(){return[...this._selectedIds].map(e=>

25this.findNode(e)).filter(Boolean)}selectAll(){for(let{node:e}of this._flatList)e._isLoading||this._selectedIds.add(e.id);this._renderVisible()}deselectAll(){this._selectedIds.clear(),this.selectedNode=null,this._renderVisible()}isSelected(e){return!!e&&this._selectedIds.has(e.id)}isFolder(e){return!!e&&("folder"===e.icon||"folderOpen"===e.icon)}expandAll(e=this.data,t=!0){for(let t of e)t.expanded=!0,t.children.length>0&&this.expandAll(t.children,!1);t&&this.render()}collapseAll(e=this.data,t=!0){for(let t of e)t.expanded=!1,t.children.length>0&&this.collapseAll(t.children,!1);t&&this.render()}startRename(e){if(!e||e._isLoading)return;this.editingNode=e;let t=this.container.querySelector(`[data-id="${CSS.escape(String(e.id))}"]`);if(!t)return;let i=t.querySelector(".nrc-tree-item"),s=t.querySelector(".nrc-tree-text");if(!s||!i)return;let l=e.text;i.removeAttribute("draggable"),s.outerHTML=`<input class="nrc-tree-input" type="text" value="${r(l)}">`;let n=t.querySelector(".nrc-tree-input");n&&(n.focus(),n.select(),this._finishRenameHandler=()=>{this.editingNode&&this.finishRename()},n.addEventListener("blur",this._finishRenameHandler),n.addEventListener("keydown",e=>{"Enter"===e.key?(e.preventDefault(),n.blur()):"Escape"===e.key&&this.cancelRename()}))}finishRename(e=null){if(!this.editingNode)return;let t=this.container.querySelector(`[data-id="${CSS.escape(String(this.editingNode.id))}"]`);if(!t)return;let i=t.querySelector(".nrc-tree-input");if(!i||(this._finishRenameHandler&&(i.removeEventListener("blur",this._finishRenameHandler),this._finishRenameHandler=null),!t.querySelector(".nrc-tree-item")))return;let s=this.editingNode.text,l=i.value.trim()||s;if(this.options.onBeforeRename&&!1===this.options.onBeforeRename(this.editingNode,l,s)){this.editingNode=null,this.render(),this.selectedNode&&this.selectNode(this.selectedNode);return}this.editingNode.text=l;let n=this.editingNode;this.editingNode=null,this.render(),this.selectNode(e||n),this.options.onRename&&this.options.onRename(n,l,s)}cancelRename(){if(this.editingNode){let e=this.container.querySelector(`[data-id="${CSS.escape(String(this.editingNode.id))}"]`),t=null==e?void 0:e.querySelector(".nrc-tree-input");t&&this._finishRenameHandler&&t.removeEventListener("blur",this._finishRenameHandler)}this.editingNode=null,this.render(),this.selectedNode&&this.selectNode(this.selectedNode)}_showContextMenu(e,t,i){this.hideContextMenu();let s=[{cmd:"add",disabled:!i},{cmd:"addRoot"},{divider:!0},{cmd:"rename",disabled:!i},{divider:!0},{cmd:"delete",disabled:!i}];if(this.options.onBeforeContextMenu){let e=this.options.onBeforeContextMenu(i,s);e&&(s=e)}if(!(s=this._resolveBuiltinCmds(s,i))||0===s.length)return;let n=function e(t,i="light",s={},n=0){let d="dark"===i?" nrc-tree-dark":"",o={...l,...s},a=`<div class="${0===n?"nrc-tree-context-menu":"nrc-tree-context-submenu"}${d}">`;return t.forEach((t,d)=>{if(t.divider)a+='<div class="nrc-tree-context-menu-divider"></div>';else{let h=t.icon&&o[t.icon]?o[t.icon]:o.empty||l.empty,c=t.children&&t.children.length>0,g=["nrc-tree-context-menu-item",t.disabled?"disabled":"",t.danger?"danger":"",c?"has-children":""].filter(Boolean).join(" ");a+=`<div class="${g}" data-index="${d}" data-level="${n}">
26                ${h}
27                <span>${r(t.text)}</span>
28                ${t.shortcut?`<span class="shortcut">${r(t.shortcut)}</span>`:""}
29                ${c?'<svg class="submenu-arrow" width="12" height="12" viewBox="0 0 16 16" fill="currentColor"><path d="M6 4l4 4-4 4"/></svg>':""}
30            </div>`,c&&(a+=e(t.children,i,s,n+1))}}),a+="</div>"}(s,this.options.theme,this.icons),d=document.createElement("template");d.innerHTML=n.trim();let o=d.content.firstElementChild;document.body.appendChild(o),o.style.left=e+"px",o.style.top=t+"px",requestAnimationFrame(()=>{let i=o.getBoundingClientRect(),s=e,l=t;i.right>window.innerWidth&&(s=window.innerWidth-i.width-10),i.bottom>window.innerHeight&&(l=window.innerHeight-i.height-10),l<10&&(l=10),s<10&&(s=10),o.style.left=s+"px",o.style.top=l+"px"});let a=[],h=(e,t=0)=>{e.forEach((e,i)=>{!e.divider&&(a.push({...e,level:t,index:i}),e.children&&h(e.children,t+1))})};h(s);let c=new Map;o.querySelectorAll(".nrc-tree-context-menu-item:not(.disabled)").forEach(e

30=>{let t=parseInt(e.getAttribute("data-index")),i=parseInt(e.getAttribute("data-level")),s=a.find(e=>e.index===t&&e.level===i);s&&s.children&&(e.addEventListener("mouseenter",()=>{let t=c.get(e);t&&(clearTimeout(t),c.delete(e)),e.closest(".nrc-tree-context-menu, .nrc-tree-context-submenu").querySelectorAll(".nrc-tree-context-submenu.show").forEach(t=>{t.previousElementSibling!==e&&t.classList.remove("show")});let i=e.nextElementSibling;if(i&&i.classList.contains("nrc-tree-context-submenu")){i.classList.add("show");let t=e.getBoundingClientRect(),s=t.right,l=t.top;i.style.left=`${s}px`,i.style.top=`${l}px`,requestAnimationFrame(()=>{let e=i.getBoundingClientRect();if(e.right>window.innerWidth&&(s=t.left-e.width,i.style.left=`${s}px`),e.bottom>window.innerHeight){let s=e.bottom-window.innerHeight;(l=t.top-s)<0&&(l=0),i.style.top=`${l}px`}})}}),e.addEventListener("mouseleave",()=>{let t=e.nextElementSibling;if(t&&t.classList.contains("nrc-tree-context-submenu")){let i=setTimeout(()=>{t.matches(":hover")||t.classList.remove("show"),c.delete(e)},100);c.set(e,i)}})),e.addEventListener("click",()=>{s&&s.action&&!s.children&&(s.action(),this.hideContextMenu())})}),this.contextMenu=o}hideContextMenu(){this.contextMenu&&(this.contextMenu.remove(),this.contextMenu=null)}_resolveBuiltinCmds(e,t){let i={tree:this,node:t};return e.map(e=>{if(e.divider||!e.cmd)return e;let s=n[e.cmd];if(!s)return e;let l={...e};return void 0===e.icon&&(l.icon=s.icon),void 0===e.text&&(l.text=s.text),void 0===e.shortcut&&s.shortcut&&(l.shortcut=s.shortcut),void 0===e.danger&&s.danger&&(l.danger=s.danger),void 0===e.action&&(l.action=()=>s.action(i)),delete l.cmd,l.children&&(l.children=this._resolveBuiltinCmds(l.children,t)),l})}_createDragPreview(e){let t=this.icons[e.icon]||this.icons.file,i=function(e,t,i="light"){return`<div class="nrc-tree-drag-preview${"dark"===i?" nrc-tree-dark":""}">
31        ${t}
32        <span>${r(e.text)}</span>
33    </div>`}(e,t,this.options.theme);this.dragPreview=this._htmlToElement(i),document.body.appendChild(this.dragPreview)}_updateDragPreview(e,t){this.dragPreview&&(this.dragPreview.style.left=e+10+"px",this.dragPreview.style.top=t+10+"px")}_removeDragPreview(){this.dragPreview&&(this.dragPreview.remove(),this.dragPreview=null)}_clearDragStyles(){this.container.querySelectorAll(".nrc-tree-item").forEach(e=>{e.classList.remove("dragging","drag-over","drag-over-top","drag-over-bottom")})}filter(e){this._filterKeyword=(e||"").trim(),this._filterMatchIds.clear(),this._filterKeyword&&this._walkFilter(this.data,this._filterKeyword.toLowerCase()),this.render()}_walkFilter(e,t){for(let i of e){let e=i.text.toLowerCase().includes(t),s=!1;if(i.children&&i.children.length>0&&(s=this._walkFilter(i.children,t)),e||s)return this._filterMatchIds.add(i.id),s&&!i.expanded&&(i.expanded=!0),!0}return!1}clearFilter(){this._filterKeyword="",this._filterMatchIds.clear(),this.render()}getExpandedIds(){let e=[],t=i=>{for(let s of i)s.expanded&&s.children.length>0&&(e.push(s.id),t(s.children))};return t(this.data),e}restoreExpanded(e){if(!e||!e.length)return;let t=new Set(e),i=e=>{for(let s of e)t.has(s.id)&&s.children.length>0&&(s.expanded=!0,i(s.children))};i(this.data),this.render()}getState(){return{expandedIds:this.getExpandedIds(),selectedIds:[...this._selectedIds],scrollTop:this._vscroll?this._vscroll.

33scrollTop:0}}restoreState(e){if(e){if(e.expandedIds&&this.restoreExpanded(e.expandedIds),e.selectedIds){this._selectedIds=new Set(e.selectedIds);let t=e.selectedIds[e.selectedIds.length-1];t&&(this.selectedNode=this.findNode(t),this._anchorId=t)}null!=e.scrollTop&&this._vscroll&&(this._vscroll.scrollTop=e.scrollTop),this.render()}}_emitStateChange(){this.options.onStateChange&&this.options.onStateChange(this.getState())}_selectPreviousNode(){if(!this.selectedNode)return;let e=this._flatList.findIndex(e=>e.node.id===this.selectedNode.id);if(e>0){let t=this._flatList[e-1];t.node._isLoading||(this.selectNode(t.node),this._scrollToVisible(e-1))}}_selectNextNode(){if(!this.selectedNode){let e=this._flatList.find(e=>!e.node._isLoading);e&&(this.selectNode(e.node),this._scrollToVisible(0));return}let e=this._flatList.findIndex(e=>e.node.id===this.selectedNode.id);if(e<this._flatList.length-1){let t=this._flatList[e+1];t.node._isLoading||(this.selectNode(t.node),this._scrollToVisible(e+1))}}_scrollToVisible(e){this._vscroll&&this._vscroll.

33scrollTo(e,"center")}_bindEvents(){let e=this._abortController.signal;this.container.addEventListener("click",e=>{let t=e.target.closest(".nrc-tree-item");if(!t)return;let i=t.closest(".nrc-tree-node");if(!i||!i.dataset.id)return;let s=this.findNode(i.dataset.id);if(!s||s._isLoading)return;this.editingNode&&this.editingNode.id!==s.id&&this.finishRename();let l=e.target.closest(".nrc-tree-toggle");l&&!l.classList.contains("empty")?this.toggleNode(s):this.editingNode&&this.editingNode.id===s.id||this.selectNode(s,{ctrlKey:e.ctrlKey||e.metaKey,shiftKey:e.shiftKey})},{signal:e}),this.container.addEventListener("dblclick",e=>{let t=e.target.closest(".nrc-tree-item");if(!t||(e.preventDefault(),e.target.closest(".nrc-tree-toggle")))return;let i=t.closest(".nrc-tree-node");if(!i||!i.dataset.id)return;let s=this.findNode(i.dataset.id);s&&!s._isLoading&&d(s,this.options.lazy)&&this.toggleNode(s)},{signal:e}),this.options.contextMenu&&this.container.addEventListener("contextmenu",e=>{e.preventDefault();let t=e.target.closest(".nrc-tree-item");

33if(t){let i=t.closest(".nrc-tree-node");if(i&&i.dataset.id){let t=this.findNode(i.dataset.id);t&&!t._isLoading&&(this.options.contextMultiSelect&&this._selectedIds.has(t.id)||this.selectNode(t),this._showContextMenu(e.clientX,e.clientY,t))}}else this._showContextMenu(e.clientX,e.clientY,null)},{signal:e}),this.options.draggable&&this._bindDragEvents(e),this.container.addEventListener("keydown",e=>{if(this.editingNode){"Escape"===e.key&&this.cancelRename();return}if(!this.selectedNode)return;let t=document.activeElement;if(!(t&&["INPUT","TEXTAREA","SELECT"].includes(t.tagName)))switch(e.key){case"F2":e.preventDefault(),this.startRename(this.selectedNode);break;case"Delete":e.preventDefault(),this.deleteNode(this.selectedNode);break;case"ArrowUp":e.preventDefault(),this._selectPreviousNode();break;case"ArrowDown":e.preventDefault(),this._selectNextNode();break;case"ArrowRight":!this.selectedNode.expanded&&d(this.selectedNode,this.options.lazy)&&this.toggleNode(this.selectedNode);break;case"ArrowLeft":this.selectedNode.expanded&&this.toggleNode(this.selectedNode);break;case"a":(e.ctrlKey||e.metaKey)&&this.options.multiSelect&&(e.preventDefault(),this.selectAll());break;case" ":this.options.multiSelect&&(e.preventDefault(),this._toggleSelect(this.selectedNode.id),this._renderVisible())}},{signal:e}),document.addEventListener("click",()=>this.hideContextMenu(),{signal:e})}_bindDragEvents(e){let t=null,i=null,s=null;this.container.addEventListener("dragstart",t=>{if(this.editingNode||t.target.classList.contains("nrc-tree-input"))return void t.preventDefault();let i=t.target.closest(".nrc-tree-item");if(!i)return;let l=i.closest(".nrc-tree-node");if(!l||(this.dragNode=this.findNode(l.dataset.id),!this.dragNode))return;i.classList.add("dragging"),t.dataTransfer.effectAllowed="move",t.dataTransfer.setData("text/plain",String(this.dragNode.id));let n=document.createElement("canvas");n.width=1,n.height=1,t.dataTransfer.setDragImage(n,0,0),this._createDragPreview(this.dragNode),this._updateDragPreview(t.clientX,t.clientY),s=e=>{this._updateDragPreview(e.clientX,e.clientY)},document.addEventListener("dragover",s,{signal:e})},{signal:e}),this.container.addEventListener("dragover",e=>{if(e.preventDefault(),!this.dragNode)return;let s=e.target.closest(".nrc-tree-item");if(!s)return;let l=s.closest(".nrc-tree-node");if(!l||l.dataset.id===String(this.dragNode.id))return;let n=s.getBoundingClientRect(),r=e.clientY-n.top,d=n.height;this._clearDragStyles(),t=s,r<.25*d?(i="before",s.classList.add("drag-over-top")):r>.75*d?(i="after",s.classList.add("drag-over-bottom")):(i="inside",s.classList.add("drag-over"))},{signal:e}),this.container.addEventListener("dragleave",e=>{let t=e.target.closest(".nrc-tree-item");t&&t.classList.remove("drag-over","drag-over-top","drag-over-bottom")},{signal:e}),this.container.addEventListener("drop",e=>{if(e.preventDefault(),!this.dragNode||!t)return;

33let s=t.closest(".nrc-tree-node");if(!s)return;let l=this.findNode(s.dataset.id);l&&l.id!==this.dragNode.id&&this.moveNode(this.dragNode,l,i),this._clearDragStyles(),this._removeDragPreview()},{signal:e}),this.container.addEventListener("dragend",()=>{s&&(document.removeEventListener("dragover",s),s=null),this._clearDragStyles(),this._removeDragPreview(),this.dragNode=null},{signal:e})}getData(e=!1){return e?this._flattenData(this.data):JSON.parse(JSON.stringify(this.data))}_flattenData(e,t=[]){for(let i of e)t.push({id:i.id,text:i.text,icon:i.icon,pid:i.pid,expanded:i.expanded,data:i.data,description:i.description,badge:i.badge,badgeType:i.badgeType,isLeaf:i.isLeaf,title:i.title,textHtml:i.textHtml,loaded:i.loaded}),i.children.length>0&&this._flattenData(i.children,t);return t}setData(e){this._index.clear(),this._selectedIds.clear(),this.selectedNode=null,this.data=this._normalizeData(e),this.render()}_countNodes(e=this.data){let t=e.length;for(let i of e)t+=this._countNodes(i.children);return t}toggleLines(){this.options.showLines=!this.options.showLines,this.render()}toggleTheme(e){e?this.options.theme=e:this.options.theme="dark"===this.options.theme?"light":"dark",this.container.classList.toggle("nrc-tree-dark","dark"===this.options.theme)}getVisibleNodes(){return this._flatList.filter(e=>!e.node._isLoading).map(e=>e.node)}scrollToNode(e,t="center"){if(!e||!this._vscroll)return;let i=!1,s=this.findParent(e);for(;s;)s.expanded||(s.expanded=!0,i=!0),s=this.findParent(s);i&&(this._flatList=this._computeFlatList(),this._vscroll.update(this._flatList.length));let l=this._flatList.findIndex(t=>t.node===e||t.node.id===e.id);l>

33=0&&(this._vscroll.scrollTo(l,t),this._renderVisible())}destroy(){this._abortController.abort(),this._abortController=null,this._visibleObserver&&(this._visibleObserver.disconnect(),this._visibleObserver=null),this.hideContextMenu(),this._removeDragPreview(),this._vscroll&&(this._vscroll.destroy(),this._vscroll=null),this.container&&(this.container.innerHTML="",this.container.classList.remove("nrc-tree","nrc-tree-dark"),this.container.style.position=""),this._renderContainer=null,this.data=[],this._index.clear(),this._selectedIds.clear(),this.selectedNode=null,this.editingNode=null,this.dragNode=null}}Object.assign(window,{nrcTree:a})}}]);