import { reactive, defineComponent, inject, h, provide, ref, getCurrentInstance, watch, nextTick, resolveComponent, withDirectives, openBlock, createBlock, withModifiers, createVNode, createCommentVNode, withCtx, Fragment, renderList, vShow, onMounted, onBeforeUnmount, onUpdated, computed, toDisplayString } from 'vue';
import ElCollapseTransition from '../el-collapse-transition';
import ElCheckbox from '../el-checkbox';
import mitt from 'mitt';
import { removeClass, addClass, on, off } from '../utils/dom';
import { EVENT_CODE } from '../utils/aria';
import { t } from '../locale';

const NODE_KEY = '$treeNodeId';
const markNodeData = function (node, data) {
    if (!data || data[NODE_KEY])
        return;
    Object.defineProperty(data, NODE_KEY, {
        value: node.id,
        enumerable: false,
        configurable: false,
        writable: false,
    });
};
const getNodeKey = function (key, data) {
    if (!key)
        return data[NODE_KEY];
    return data[key];
};

const getChildState = (node) => {
    let all = true;
    let none = true;
    let allWithoutDisable = true;
    for (let i = 0, j = node.length; i < j; i++) {
        const n = node[i];
        if (n.checked !== true || n.indeterminate) {
            all = false;
            if (!n.disabled) {
                allWithoutDisable = false;
            }
        }
        if (n.checked !== false || n.indeterminate) {
            none = false;
        }
    }
    return { all, none, allWithoutDisable, half: !all && !none };
};
const reInitChecked = function (node) {
    if (node.childNodes.length === 0)
        return;
    const { all, none, half } = getChildState(node.childNodes);
    if (all) {
        node.checked = true;
        node.indeterminate = false;
    }
    else if (half) {
        node.checked = false;
        node.indeterminate = true;
    }
    else if (none) {
        node.checked = false;
        node.indeterminate = false;
    }
    const parent = node.parent;
    if (!parent || parent.level === 0)
        return;
    if (!node.store.checkStrictly) {
        reInitChecked(parent);
    }
};
const getPropertyFromData = function (node, prop) {
    const props = node.store.props;
    const data = node.data || {};
    const config = props[prop];
    if (typeof config === 'function') {
        return config(data, node);
    }
    else if (typeof config === 'string') {
        return data[config];
    }
    else if (typeof config === 'undefined') {
        const dataProp = data[prop];
        return dataProp === undefined ? '' : dataProp;
    }
};
let nodeIdSeed = 0;
class Node {
    constructor(options) {
        this.id = nodeIdSeed++;
        this.text = null;
        this.checked = false;
        this.indeterminate = false;
        this.data = null;
        this.expanded = false;
        this.parent = null;
        this.visible = true;
        this.isCurrent = false;
        this.canFocus = false;
        for (const name in options) {
            if (options.hasOwnProperty(name)) {
                this[name] = options[name];
            }
        }
        this.level = 0;
        this.loaded = false;
        this.childNodes = [];
        this.loading = false;
        if (this.parent) {
            this.level = this.parent.level + 1;
        }
    }
    initialize() {
        const store = this.store;
        if (!store) {
            throw new Error('[Node]store is required!');
        }
        store.registerNode(this);
        const props = store.props;
        if (props && typeof props.isLeaf !== 'undefined') {
            const isLeaf = getPropertyFromData(this, 'isLeaf');
            if (typeof isLeaf === 'boolean') {
                this.isLeafByUser = isLeaf;
            }
        }
        if (store.lazy !== true && this.data) {
            this.setData(this.data);
            if (store.defaultExpandAll) {
                this.expanded = true;
                this.canFocus = true;
            }
        }
        else if (this.level > 0 && store.lazy && store.defaultExpandAll) {
            this.expand();
        }
        if (!Array.isArray(this.data)) {
            markNodeData(this, this.data);
        }
        if (!this.data)
            return;
        const defaultExpandedKeys = store.defaultExpandedKeys;
        const key = store.key;
        if (key && defaultExpandedKeys && defaultExpandedKeys.indexOf(this.key) !== -1) {
            this.expand(null, store.autoExpandParent);
        }
        if (key && store.currentNodeKey !== undefined && this.key === store.currentNodeKey) {
            store.currentNode = this;
            store.currentNode.isCurrent = true;
        }
        if (store.lazy) {
            store._initDefaultCheckedNode(this);
        }
        this.updateLeafState();
        if (this.parent && (this.level === 1 || this.parent.expanded === true))
            this.canFocus = true;
    }
    setData(data) {
        if (!Array.isArray(data)) {
            markNodeData(this, data);
        }
        this.data = data;
        this.childNodes = [];
        let children;
        if (this.level === 0 && this.data instanceof Array) {
            children = this.data;
        }
        else {
            children = getPropertyFromData(this, 'children') || [];
        }
        for (let i = 0, j = children.length; i < j; i++) {
            this.insertChild({ data: children[i] });
        }
    }
    get label() {
        return getPropertyFromData(this, 'label');
    }
    get key() {
        const nodeKey = this.store.key;
        if (this.data)
            return this.data[nodeKey];
        return null;
    }
    get disabled() {
        return getPropertyFromData(this, 'disabled');
    }
    get nextSibling() {
        const parent = this.parent;
        if (parent) {
            const index = parent.childNodes.indexOf(this);
            if (index > -1) {
                return parent.childNodes[index + 1];
            }
        }
        return null;
    }
    get previousSibling() {
        const parent = this.parent;
        if (parent) {
            const index = parent.childNodes.indexOf(this);
            if (index > -1) {
                return index > 0 ? parent.childNodes[index - 1] : null;
            }
        }
        return null;
    }
    contains(target, deep = true) {
        return (this.childNodes || []).some(child => child === target || (deep && child.contains(target)));
    }
    remove() {
        const parent = this.parent;
        if (parent) {
            parent.removeChild(this);
        }
    }
    insertChild(child, index, batch) {
        if (!child)
            throw new Error('insertChild error: child is required.');
        if (!(child instanceof Node)) {
            if (!batch) {
                const children = this.getChildren(true);
                if (children.indexOf(child.data) === -1) {
                    if (typeof index === 'undefined' || index < 0) {
                        children.push(child.data);
                    }
                    else {
                        children.splice(index, 0, child.data);
                    }
                }
            }
            Object.assign(child, {
                parent: this,
                store: this.store,
            });
            child = reactive(new Node(child));
            if (child instanceof Node) {
                child.initialize();
            }
        }
        child.level = this.level + 1;
        if (typeof index === 'undefined' || index < 0) {
            this.childNodes.push(child);
        }
        else {
            this.childNodes.splice(index, 0, child);
        }
        this.updateLeafState();
    }
    insertBefore(child, ref) {
        let index;
        if (ref) {
            index = this.childNodes.indexOf(ref);
        }
        this.insertChild(child, index);
    }
    insertAfter(child, ref) {
        let index;
        if (ref) {
            index = this.childNodes.indexOf(ref);
            if (index !== -1)
                index += 1;
        }
        this.insertChild(child, index);
    }
    removeChild(child) {
        const children = this.getChildren() || [];
        const dataIndex = children.indexOf(child.data);
        if (dataIndex > -1) {
            children.splice(dataIndex, 1);
        }
        const index = this.childNodes.indexOf(child);
        if (index > -1) {
            this.store && this.store.deregisterNode(child);
            child.parent = null;
            this.childNodes.splice(index, 1);
        }
        this.updateLeafState();
    }
    removeChildByData(data) {
        let targetNode = null;
        for (let i = 0; i < this.childNodes.length; i++) {
            if (this.childNodes[i].data === data) {
                targetNode = this.childNodes[i];
                break;
            }
        }
        if (targetNode) {
            this.removeChild(targetNode);
        }
    }
    expand(callback, expandParent) {
        const done = () => {
            if (expandParent) {
                let parent = this.parent;
                while (parent.level > 0) {
                    parent.expanded = true;
                    parent = parent.parent;
                }
            }
            this.expanded = true;
            if (callback)
                callback();
            this.childNodes.forEach(item => {
                item.canFocus = true;
            });
        };
        if (this.shouldLoadData()) {
            this.loadData(data => {
                if (Array.isArray(data)) {
                    if (this.checked) {
                        this.setChecked(true, true);
                    }
                    else if (!this.store.checkStrictly) {
                        reInitChecked(this);
                    }
                    done();
                }
            });
        }
        else {
            done();
        }
    }
    doCreateChildren(array, defaultProps = {}) {
        array.forEach(item => {
            this.insertChild(Object.assign({ data: item }, defaultProps), undefined, true);
        });
    }
    collapse() {
        this.expanded = false;
        this.childNodes.forEach(item => {
            item.canFocus = false;
        });
    }
    shouldLoadData() {
        return this.store.lazy === true && this.store.load && !this.loaded;
    }
    updateLeafState() {
        if (this.store.lazy === true && this.loaded !== true && typeof this.isLeafByUser !== 'undefined') {
            this.isLeaf = this.isLeafByUser;
            return;
        }
        const childNodes = this.childNodes;
        if (!this.store.lazy || (this.store.lazy === true && this.loaded === true)) {
            this.isLeaf = !childNodes || childNodes.length === 0;
            return;
        }
        this.isLeaf = false;
    }
    setChecked(value, deep, recursion, passValue) {
        this.indeterminate = value === 'half';
        this.checked = value === true;
        if (this.store.checkStrictly)
            return;
        if (!(this.shouldLoadData() && !this.store.checkDescendants)) {
            const { all, allWithoutDisable } = getChildState(this.childNodes);
            if (!this.isLeaf && (!all && allWithoutDisable)) {
                this.checked = false;
                value = false;
            }
            const handleDescendants = () => {
                if (deep) {
                    const childNodes = this.childNodes;
                    for (let i = 0, j = childNodes.length; i < j; i++) {
                        const child = childNodes[i];
                        passValue = passValue || value !== false;
                        const isCheck = child.disabled ? child.checked : passValue;
                        child.setChecked(isCheck, deep, true, passValue);
                    }
                    const { half, all } = getChildState(childNodes);
                    if (!all) {
                        this.checked = all;
                        this.indeterminate = half;
                    }
                }
            };
            if (this.shouldLoadData()) {
                this.loadData(() => {
                    handleDescendants();
                    reInitChecked(this);
                }, {
                    checked: value !== false,
                });
                return;
            }
            else {
                handleDescendants();
            }
        }
        const parent = this.parent;
        if (!parent || parent.level === 0)
            return;
        if (!recursion) {
            reInitChecked(parent);
        }
    }
    getChildren(forceInit = false) {
        if (this.level === 0)
            return this.data;
        const data = this.data;
        if (!data)
            return null;
        const props = this.store.props;
        let children = 'children';
        if (props) {
            children = props.children || 'children';
        }
        if (data[children] === undefined) {
            data[children] = null;
        }
        if (forceInit && !data[children]) {
            data[children] = [];
        }
        return data[children];
    }
    updateChildren() {
        const newData = (this.getChildren() || []);
        const oldData = this.childNodes.map(node => node.data);
        const newDataMap = {};
        const newNodes = [];
        newData.forEach((item, index) => {
            const key = item[NODE_KEY];
            const isNodeExists = !!key && oldData.findIndex(data => data[NODE_KEY] === key) >= 0;
            if (isNodeExists) {
                newDataMap[key] = { index, data: item };
            }
            else {
                newNodes.push({ index, data: item });
            }
        });
        if (!this.store.lazy) {
            oldData.forEach(item => {
                if (!newDataMap[item[NODE_KEY]])
                    this.removeChildByData(item);
            });
        }
        newNodes.forEach(({ index, data }) => {
            this.insertChild({ data }, index);
        });
        this.updateLeafState();
    }
    loadData(callback, defaultProps = {}) {
        if (this.store.lazy === true && this.store.load && !this.loaded && (!this.loading || Object.keys(defaultProps).length)) {
            this.loading = true;
            const resolve = children => {
                this.loaded = true;
                this.loading = false;
                this.childNodes = [];
                this.doCreateChildren(children, defaultProps);
                this.updateLeafState();
                if (callback) {
                    callback.call(this, children);
                }
            };
            this.store.load(this, resolve);
        }
        else {
            if (callback) {
                callback.call(this);
            }
        }
    }
}

class TreeStore {
    constructor(options) {
        this.currentNode = null;
        this.currentNodeKey = null;
        for (const option in options) {
            if (options.hasOwnProperty(option)) {
                this[option] = options[option];
            }
        }
        this.nodesMap = {};
    }
    initialize() {
        this.root = new Node({
            data: this.data,
            store: this,
        });
        this.root.initialize();
        if (this.lazy && this.load) {
            const loadFn = this.load;
            loadFn(this.root, data => {
                this.root.doCreateChildren(data);
                this._initDefaultCheckedNodes();
            });
        }
        else {
            this._initDefaultCheckedNodes();
        }
    }
    filter(value) {
        const filterNodeMethod = this.filterNodeMethod;
        const lazy = this.lazy;
        const traverse = function (node) {
            const childNodes = node.root ? node.root.childNodes : node.childNodes;
            childNodes.forEach(child => {
                child.visible = filterNodeMethod.call(child, value, child.data, child);
                traverse(child);
            });
            if (!node.visible && childNodes.length) {
                let allHidden = true;
                allHidden = !childNodes.some(child => child.visible);
                if (node.root) {
                    node.root.visible = allHidden === false;
                }
                else {
                    node.visible = allHidden === false;
                }
            }
            if (!value)
                return;
            if (node.visible && !node.isLeaf && !lazy)
                node.expand();
        };
        traverse(this);
    }
    setData(newVal) {
        const instanceChanged = newVal !== this.root.data;
        if (instanceChanged) {
            this.root.setData(newVal);
            this._initDefaultCheckedNodes();
        }
        else {
            this.root.updateChildren();
        }
    }
    getNode(data) {
        if (data instanceof Node)
            return data;
        const key = typeof data !== 'object' ? data : getNodeKey(this.key, data);
        return this.nodesMap[key] || null;
    }
    insertBefore(data, refData) {
        const refNode = this.getNode(refData);
        refNode.parent.insertBefore({ data }, refNode);
    }
    insertAfter(data, refData) {
        const refNode = this.getNode(refData);
        refNode.parent.insertAfter({ data }, refNode);
    }
    remove(data) {
        const node = this.getNode(data);
        if (node && node.parent) {
            if (node === this.currentNode) {
                this.currentNode = null;
            }
            node.parent.removeChild(node);
        }
    }
    append(data, parentData) {
        const parentNode = parentData ? this.getNode(parentData) : this.root;
        if (parentNode) {
            parentNode.insertChild({ data });
        }
    }
    _initDefaultCheckedNodes() {
        const defaultCheckedKeys = this.defaultCheckedKeys || [];
        const nodesMap = this.nodesMap;
        defaultCheckedKeys.forEach(checkedKey => {
            const node = nodesMap[checkedKey];
            if (node) {
                node.setChecked(true, !this.checkStrictly);
            }
        });
    }
    _initDefaultCheckedNode(node) {
        const defaultCheckedKeys = this.defaultCheckedKeys || [];
        if (defaultCheckedKeys.indexOf(node.key) !== -1) {
            node.setChecked(true, !this.checkStrictly);
        }
    }
    setDefaultCheckedKey(newVal) {
        if (newVal !== this.defaultCheckedKeys) {
            this.defaultCheckedKeys = newVal;
            this._initDefaultCheckedNodes();
        }
    }
    registerNode(node) {
        const key = this.key;
        if (!node || !node.data)
            return;
        if (!key) {
            this.nodesMap[node.id] = node;
        }
        else {
            const nodeKey = node.key;
            if (nodeKey !== undefined)
                this.nodesMap[node.key] = node;
        }
    }
    deregisterNode(node) {
        const key = this.key;
        if (!key || !node || !node.data)
            return;
        node.childNodes.forEach(child => {
            this.deregisterNode(child);
        });
        delete this.nodesMap[node.key];
    }
    getCheckedNodes(leafOnly = false, includeHalfChecked = false) {
        const checkedNodes = [];
        const traverse = function (node) {
            const childNodes = node.root ? node.root.childNodes : node.childNodes;
            childNodes.forEach(child => {
                if ((child.checked || (includeHalfChecked && child.indeterminate)) && (!leafOnly || (leafOnly && child.isLeaf))) {
                    checkedNodes.push(child.data);
                }
                traverse(child);
            });
        };
        traverse(this);
        return checkedNodes;
    }
    getCheckedKeys(leafOnly = false) {
        return this.getCheckedNodes(leafOnly).map(data => (data || {})[this.key]);
    }
    getHalfCheckedNodes() {
        const nodes = [];
        const traverse = function (node) {
            const childNodes = node.root ? node.root.childNodes : node.childNodes;
            childNodes.forEach(child => {
                if (child.indeterminate) {
                    nodes.push(child.data);
                }
                traverse(child);
            });
        };
        traverse(this);
        return nodes;
    }
    getHalfCheckedKeys() {
        return this.getHalfCheckedNodes().map(data => (data || {})[this.key]);
    }
    _getAllNodes() {
        const allNodes = [];
        const nodesMap = this.nodesMap;
        for (const nodeKey in nodesMap) {
            if (nodesMap.hasOwnProperty(nodeKey)) {
                allNodes.push(nodesMap[nodeKey]);
            }
        }
        return allNodes;
    }
    updateChildren(key, data) {
        const node = this.nodesMap[key];
        if (!node)
            return;
        const childNodes = node.childNodes;
        for (let i = childNodes.length - 1; i >= 0; i--) {
            const child = childNodes[i];
            this.remove(child.data);
        }
        for (let i = 0, j = data.length; i < j; i++) {
            const child = data[i];
            this.append(child, node.data);
        }
    }
    _setCheckedKeys(key, leafOnly = false, checkedKeys) {
        const allNodes = this._getAllNodes().sort((a, b) => b.level - a.level);
        const cache = Object.create(null);
        const keys = Object.keys(checkedKeys);
        allNodes.forEach(node => node.setChecked(false, false));
        for (let i = 0, j = allNodes.length; i < j; i++) {
            const node = allNodes[i];
            const nodeKey = node.data[key].toString();
            const checked = keys.indexOf(nodeKey) > -1;
            if (!checked) {
                if (node.checked && !cache[nodeKey]) {
                    node.setChecked(false, false);
                }
                continue;
            }
            let parent = node.parent;
            while (parent && parent.level > 0) {
                cache[parent.data[key]] = true;
                parent = parent.parent;
            }
            if (node.isLeaf || this.checkStrictly) {
                node.setChecked(true, false);
                continue;
            }
            node.setChecked(true, true);
            if (leafOnly) {
                node.setChecked(false, false);
                const traverse = function (node) {
                    const childNodes = node.childNodes;
                    childNodes.forEach(child => {
                        if (!child.isLeaf) {
                            child.setChecked(false, false);
                        }
                        traverse(child);
                    });
                };
                traverse(node);
            }
        }
    }
    setCheckedNodes(array, leafOnly = false) {
        const key = this.key;
        const checkedKeys = {};
        array.forEach(item => {
            checkedKeys[(item || {})[key]] = true;
        });
        this._setCheckedKeys(key, leafOnly, checkedKeys);
    }
    setCheckedKeys(keys, leafOnly = false) {
        this.defaultCheckedKeys = keys;
        const key = this.key;
        const checkedKeys = {};
        keys.forEach(key => {
            checkedKeys[key] = true;
        });
        this._setCheckedKeys(key, leafOnly, checkedKeys);
    }
    setDefaultExpandedKeys(keys) {
        keys = keys || [];
        this.defaultExpandedKeys = keys;
        keys.forEach(key => {
            const node = this.getNode(key);
            if (node)
                node.expand(null, this.autoExpandParent);
        });
    }
    setChecked(data, checked, deep) {
        const node = this.getNode(data);
        if (node) {
            node.setChecked(!!checked, deep);
        }
    }
    getCurrentNode() {
        return this.currentNode;
    }
    setCurrentNode(currentNode) {
        const prevCurrentNode = this.currentNode;
        if (prevCurrentNode) {
            prevCurrentNode.isCurrent = false;
        }
        this.currentNode = currentNode;
        this.currentNode.isCurrent = true;
    }
    setUserCurrentNode(node) {
        const key = node[this.key];
        const currNode = this.nodesMap[key];
        this.setCurrentNode(currNode);
    }
    setCurrentNodeKey(key) {
        if (key === null || key === undefined) {
            this.currentNode && (this.currentNode.isCurrent = false);
            this.currentNode = null;
            return;
        }
        const node = this.getNode(key);
        if (node) {
            this.setCurrentNode(node);
        }
    }
}

var script = defineComponent({
    name: 'ElTreeNodeContent',
    props: {
        node: {
            type: Object,
            required: true,
        },
        renderContent: Function,
    },
    setup(props) {
        const nodeInstance = inject('NodeInstance');
        const tree = inject('RootTree');
        return () => {
            const node = props.node;
            const { data, store } = node;
            return (props.renderContent
                ? props.renderContent(h, { _self: nodeInstance, node, data, store })
                : tree.ctx.slots.default
                    ? tree.ctx.slots.default({ node, data })
                    : h('span', { class: 'el-tree-node__label' }, [node.label]));
        };
    },
});

script.__file = "packages/tree/src/tree-node-content.vue";

function useNodeExpandEventBroadcast(props) {
    const parentNodeMap = inject('TreeNodeMap', null);
    const currentNodeMap = {
        treeNodeExpand: node => {
            if (props.node !== node) {
                props.node.collapse();
            }
        },
        children: [],
    };
    if (parentNodeMap) {
        parentNodeMap.children.push(currentNodeMap);
    }
    provide('TreeNodeMap', currentNodeMap);
    return {
        broadcastExpanded: (node) => {
            if (!props.accordion)
                return;
            for (const childNode of currentNodeMap.children) {
                childNode.treeNodeExpand(node);
            }
        },
    };
}

function useDragNodeHandler({ props, ctx, el$, dropIndicator$, store }) {
    const emitter = mitt();
    provide('DragNodeEmitter', emitter);
    const dragState = ref({
        showDropIndicator: false,
        draggingNode: null,
        dropNode: null,
        allowDrop: true,
        dropType: null,
    });
    emitter.on('tree-node-drag-start', ({ event, treeNode }) => {
        console.log(event, treeNode);
        if (typeof props.allowDrag === 'function' && !props.allowDrag(treeNode.node)) {
            event.preventDefault();
            return false;
        }
        event.dataTransfer.effectAllowed = 'move';
        try {
            event.dataTransfer.setData('text/plain', '');
        }
        catch (e) { }
        dragState.value.draggingNode = treeNode;
        ctx.emit('node-drag-start', treeNode.node, event);
    });
    emitter.on('tree-node-drag-over', ({ event, treeNode }) => {
        const dropNode = treeNode;
        const oldDropNode = dragState.value.dropNode;
        if (oldDropNode && oldDropNode !== dropNode) {
            removeClass(oldDropNode.$el, 'is-drop-inner');
        }
        const draggingNode = dragState.value.draggingNode;
        if (!draggingNode || !dropNode)
            return;
        let dropPrev = true;
        let dropInner = true;
        let dropNext = true;
        let userAllowDropInner = true;
        if (typeof props.allowDrop === 'function') {
            dropPrev = props.allowDrop(draggingNode.node, dropNode.node, 'prev');
            userAllowDropInner = dropInner = props.allowDrop(draggingNode.node, dropNode.node, 'inner');
            dropNext = props.allowDrop(draggingNode.node, dropNode.node, 'next');
        }
        event.dataTransfer.dropEffect = dropInner ? 'move' : 'none';
        if ((dropPrev || dropInner || dropNext) && oldDropNode !== dropNode) {
            if (oldDropNode) {
                ctx.emit('node-drag-leave', draggingNode.node, oldDropNode.node, event);
            }
            ctx.emit('node-drag-enter', draggingNode.node, dropNode.node, event);
        }
        if (dropPrev || dropInner || dropNext) {
            dragState.value.dropNode = dropNode;
        }
        if (dropNode.node.nextSibling === draggingNode.node) {
            dropNext = false;
        }
        if (dropNode.node.previousSibling === draggingNode.node) {
            dropPrev = false;
        }
        if (dropNode.node.contains(draggingNode.node, false)) {
            dropInner = false;
        }
        if (draggingNode.node === dropNode.node || draggingNode.node.contains(dropNode.node)) {
            dropPrev = false;
            dropInner = false;
            dropNext = false;
        }
        const targetPosition = dropNode.$el.getBoundingClientRect();
        const treePosition = el$.value.getBoundingClientRect();
        let dropType;
        const prevPercent = dropPrev ? (dropInner ? 0.25 : (dropNext ? 0.45 : 1)) : -1;
        const nextPercent = dropNext ? (dropInner ? 0.75 : (dropPrev ? 0.55 : 0)) : 1;
        let indicatorTop = -9999;
        const distance = event.clientY - targetPosition.top;
        if (distance < targetPosition.height * prevPercent) {
            dropType = 'before';
        }
        else if (distance > targetPosition.height * nextPercent) {
            dropType = 'after';
        }
        else if (dropInner) {
            dropType = 'inner';
        }
        else {
            dropType = 'none';
        }
        const iconPosition = dropNode.$el.querySelector('.el-tree-node__expand-icon').getBoundingClientRect();
        const dropIndicator = dropIndicator$.value;
        if (dropType === 'before') {
            indicatorTop = iconPosition.top - treePosition.top;
        }
        else if (dropType === 'after') {
            indicatorTop = iconPosition.bottom - treePosition.top;
        }
        dropIndicator.style.top = indicatorTop + 'px';
        dropIndicator.style.left = (iconPosition.right - treePosition.left) + 'px';
        if (dropType === 'inner') {
            addClass(dropNode.$el, 'is-drop-inner');
        }
        else {
            removeClass(dropNode.$el, 'is-drop-inner');
        }
        dragState.value.showDropIndicator = dropType === 'before' || dropType === 'after';
        dragState.value.allowDrop = dragState.value.showDropIndicator || userAllowDropInner;
        dragState.value.dropType = dropType;
        ctx.emit('node-drag-over', draggingNode.node, dropNode.node, event);
    });
    emitter.on('tree-node-drag-end', (event) => {
        const { draggingNode, dropType, dropNode } = dragState.value;
        event.preventDefault();
        event.dataTransfer.dropEffect = 'move';
        if (draggingNode && dropNode) {
            const draggingNodeCopy = { data: draggingNode.node.data };
            if (dropType !== 'none') {
                draggingNode.node.remove();
            }
            if (dropType === 'before') {
                dropNode.node.parent.insertBefore(draggingNodeCopy, dropNode.node);
            }
            else if (dropType === 'after') {
                dropNode.node.parent.insertAfter(draggingNodeCopy, dropNode.node);
            }
            else if (dropType === 'inner') {
                dropNode.node.insertChild(draggingNodeCopy);
            }
            if (dropType !== 'none') {
                store.value.registerNode(draggingNodeCopy);
            }
            removeClass(dropNode.$el, 'is-drop-inner');
            ctx.emit('node-drag-end', draggingNode.node, dropNode.node, dropType, event);
            if (dropType !== 'none') {
                ctx.emit('node-drop', draggingNode.node, dropNode.node, dropType, event);
            }
        }
        if (draggingNode && !dropNode) {
            ctx.emit('node-drag-end', draggingNode.node, null, dropType, event);
        }
        dragState.value.showDropIndicator = false;
        dragState.value.draggingNode = null;
        dragState.value.dropNode = null;
        dragState.value.allowDrop = true;
    });
    return {
        dragState,
    };
}
function useDragNodeEmitter() {
    const emitter = inject('DragNodeEmitter');
    return {
        emitter,
    };
}

var script$1 = defineComponent({
    name: 'ElTreeNode',
    components: {
        ElCollapseTransition,
        ElCheckbox,
        NodeContent: script,
    },
    props: {
        node: {
            type: Node,
            default: () => ({}),
        },
        props: {
            type: Object,
            default: () => ({}),
        },
        renderContent: Function,
        renderAfterExpand: Boolean,
        showCheckbox: {
            type: Boolean,
            default: false,
        },
    },
    emits: ['node-expand'],
    setup(props, ctx) {
        const { broadcastExpanded } = useNodeExpandEventBroadcast(props);
        const tree = inject('RootTree');
        const expanded = ref(false);
        const childNodeRendered = ref(false);
        const oldChecked = ref(null);
        const oldIndeterminate = ref(null);
        const node$ = ref(null);
        const { emitter } = useDragNodeEmitter();
        const instance = getCurrentInstance();
        provide('NodeInstance', instance);
        if (!tree) {
            console.warn('Can not find node\'s tree.');
        }
        if (props.node.expanded) {
            expanded.value = true;
            childNodeRendered.value = true;
        }
        const childrenKey = tree.props['children'] || 'children';
        watch(() => {
            const children = props.node.data[childrenKey];
            return children && [...children];
        }, () => {
            props.node.updateChildren();
        });
        watch(() => props.node.indeterminate, val => {
            handleSelectChange(props.node.checked, val);
        });
        watch(() => props.node.checked, val => {
            handleSelectChange(val, props.node.indeterminate);
        });
        watch(() => props.node.expanded, val => {
            nextTick(() => expanded.value = val);
            if (val) {
                childNodeRendered.value = true;
            }
        });
        const getNodeKey$1 = (node) => {
            return getNodeKey(tree.props.nodeKey, node.data);
        };
        const handleSelectChange = (checked, indeterminate) => {
            if (oldChecked.value !== checked || oldIndeterminate.value !== indeterminate) {
                tree.ctx.emit('check-change', props.node.data, checked, indeterminate);
            }
            oldChecked.value = checked;
            oldIndeterminate.value = indeterminate;
        };
        const handleClick = () => {
            const store = tree.store.value;
            store.setCurrentNode(props.node);
            tree.ctx.emit('current-change', store.currentNode ? store.currentNode.data : null, store.currentNode);
            tree.currentNode.value = props.node;
            if (tree.props.expandOnClickNode) {
                handleExpandIconClick();
            }
            if (tree.props.checkOnClickNode && !props.node.disabled) {
                handleCheckChange(null, {
                    target: { checked: !props.node.checked },
                });
            }
            tree.ctx.emit('node-click', props.node.data, props.node, instance);
        };
        const handleContextMenu = (event) => {
            if (tree.instance.vnode.props['onNodeContextmenu']) {
                event.stopPropagation();
                event.preventDefault();
            }
            tree.ctx.emit('node-contextmenu', event, props.node.data, props.node, instance);
        };
        const handleExpandIconClick = () => {
            if (props.node.isLeaf)
                return;
            if (expanded.value) {
                tree.ctx.emit('node-collapse', props.node.data, props.node, instance);
                props.node.collapse();
            }
            else {
                props.node.expand();
                ctx.emit('node-expand', props.node.data, props.node, instance);
            }
        };
        const handleCheckChange = (value, ev) => {
            props.node.setChecked(ev.target.checked, !tree.props.checkStrictly);
            nextTick(() => {
                const store = tree.store.value;
                tree.ctx.emit('check', props.node.data, {
                    checkedNodes: store.getCheckedNodes(),
                    checkedKeys: store.getCheckedKeys(),
                    halfCheckedNodes: store.getHalfCheckedNodes(),
                    halfCheckedKeys: store.getHalfCheckedKeys(),
                });
            });
        };
        const handleChildNodeExpand = (nodeData, node, instance) => {
            broadcastExpanded(node);
            tree.ctx.emit('node-expand', nodeData, node, instance);
        };
        const handleDragStart = (event) => {
            if (!tree.props.draggable)
                return;
            emitter.emit('tree-node-drag-start', { event, treeNode: props });
        };
        const handleDragOver = (event) => {
            if (!tree.props.draggable)
                return;
            emitter.emit('tree-node-drag-over', { event, treeNode: { $el: node$.value, node: props.node } });
            event.preventDefault();
        };
        const handleDrop = (event) => {
            event.preventDefault();
        };
        const handleDragEnd = (event) => {
            if (!tree.props.draggable)
                return;
            emitter.emit('tree-node-drag-end', event);
        };
        return {
            node$,
            tree,
            expanded,
            childNodeRendered,
            oldChecked,
            oldIndeterminate,
            emitter,
            parent,
            getNodeKey: getNodeKey$1,
            handleSelectChange,
            handleClick,
            handleContextMenu,
            handleExpandIconClick,
            handleCheckChange,
            handleChildNodeExpand,
            handleDragStart,
            handleDragOver,
            handleDrop,
            handleDragEnd,
        };
    },
});

const _hoisted_1 = {
  key: 1,
  class: "el-tree-node__loading-icon el-icon-loading"
};

function render(_ctx, _cache, $props, $setup, $data, $options) {
  const _component_el_checkbox = resolveComponent("el-checkbox");
  const _component_node_content = resolveComponent("node-content");
  const _component_el_tree_node = resolveComponent("el-tree-node");
  const _component_el_collapse_transition = resolveComponent("el-collapse-transition");

  return withDirectives((openBlock(), createBlock("div", {
    ref: "node$",
    class: ["el-tree-node", {
      'is-expanded': _ctx.expanded,
      'is-current': _ctx.node.isCurrent,
      'is-hidden': !_ctx.node.visible,
      'is-focusable': !_ctx.node.disabled,
      'is-checked': !_ctx.node.disabled && _ctx.node.checked,
    }],
    role: "treeitem",
    tabindex: "-1",
    "aria-expanded": _ctx.expanded,
    "aria-disabled": _ctx.node.disabled,
    "aria-checked": _ctx.node.checked,
    draggable: _ctx.tree.props.draggable,
    "data-key": _ctx.getNodeKey(_ctx.node),
    onClick: _cache[3] || (_cache[3] = withModifiers((...args) => (_ctx.handleClick && _ctx.handleClick(...args)), ["stop"])),
    onContextmenu: _cache[4] || (_cache[4] = (...args) => (_ctx.handleContextMenu && _ctx.handleContextMenu(...args))),
    onDragstart: _cache[5] || (_cache[5] = withModifiers((...args) => (_ctx.handleDragStart && _ctx.handleDragStart(...args)), ["stop"])),
    onDragover: _cache[6] || (_cache[6] = withModifiers((...args) => (_ctx.handleDragOver && _ctx.handleDragOver(...args)), ["stop"])),
    onDragend: _cache[7] || (_cache[7] = withModifiers((...args) => (_ctx.handleDragEnd && _ctx.handleDragEnd(...args)), ["stop"])),
    onDrop: _cache[8] || (_cache[8] = withModifiers((...args) => (_ctx.handleDrop && _ctx.handleDrop(...args)), ["stop"]))
  }, [
    createVNode("div", {
      class: "el-tree-node__content",
      style: { 'padding-left': (_ctx.node.level - 1) * _ctx.tree.props.indent + 'px' }
    }, [
      createVNode("span", {
        class: [
          {
            'is-leaf': _ctx.node.isLeaf,
            expanded: !_ctx.node.isLeaf && _ctx.expanded,
          },
          'el-tree-node__expand-icon',
          _ctx.tree.props.iconClass ? _ctx.tree.props.iconClass : 'el-icon-caret-right',
        ],
        onClick: _cache[1] || (_cache[1] = withModifiers((...args) => (_ctx.handleExpandIconClick && _ctx.handleExpandIconClick(...args)), ["stop"]))
      }, null, 2 /* CLASS */),
      (_ctx.showCheckbox)
        ? (openBlock(), createBlock(_component_el_checkbox, {
            key: 0,
            "model-value": _ctx.node.checked,
            indeterminate: _ctx.node.indeterminate,
            disabled: !!_ctx.node.disabled,
            onClick: _cache[2] || (_cache[2] = withModifiers(() => {}, ["stop"])),
            onChange: _ctx.handleCheckChange
          }, null, 8 /* PROPS */, ["model-value", "indeterminate", "disabled", "onChange"]))
        : createCommentVNode("v-if", true),
      (_ctx.node.loading)
        ? (openBlock(), createBlock("span", _hoisted_1))
        : createCommentVNode("v-if", true),
      createVNode(_component_node_content, {
        node: _ctx.node,
        "render-content": _ctx.renderContent
      }, null, 8 /* PROPS */, ["node", "render-content"])
    ], 4 /* STYLE */),
    createVNode(_component_el_collapse_transition, null, {
      default: withCtx(() => [
        (!_ctx.renderAfterExpand || _ctx.childNodeRendered)
          ? withDirectives((openBlock(), createBlock("div", {
              key: 0,
              class: "el-tree-node__children",
              role: "group",
              "aria-expanded": _ctx.expanded
            }, [
              (openBlock(true), createBlock(Fragment, null, renderList(_ctx.node.childNodes, (child) => {
                return (openBlock(), createBlock(_component_el_tree_node, {
                  key: _ctx.getNodeKey(child),
                  "render-content": _ctx.renderContent,
                  "render-after-expand": _ctx.renderAfterExpand,
                  "show-checkbox": _ctx.showCheckbox,
                  node: child,
                  onNodeExpand: _ctx.handleChildNodeExpand
                }, null, 8 /* PROPS */, ["render-content", "render-after-expand", "show-checkbox", "node", "onNodeExpand"]))
              }), 128 /* KEYED_FRAGMENT */))
            ], 8 /* PROPS */, ["aria-expanded"])), [
              [vShow, _ctx.expanded]
            ])
          : createCommentVNode("v-if", true)
      ]),
      _: 1 /* STABLE */
    })
  ], 42 /* CLASS, PROPS, HYDRATE_EVENTS */, ["aria-expanded", "aria-disabled", "aria-checked", "draggable", "data-key"])), [
    [vShow, _ctx.node.visible]
  ])
}

script$1.render = render;
script$1.__file = "packages/tree/src/tree-node.vue";

function useKeydown({ el$ }, store) {
    const treeItems = ref([]);
    const checkboxItems = ref([]);
    onMounted(() => {
        initTabIndex();
        on(el$.value, 'keydown', handleKeydown);
    });
    onBeforeUnmount(() => {
        off(el$.value, 'keydown', handleKeydown);
    });
    onUpdated(() => {
        treeItems.value = Array.from(el$.value.querySelectorAll('[role=treeitem]'));
        checkboxItems.value = Array.from(el$.value.querySelectorAll('input[type=checkbox]'));
    });
    watch(checkboxItems, val => {
        val.forEach(checkbox => {
            checkbox.setAttribute('tabindex', '-1');
        });
    });
    const handleKeydown = (ev) => {
        const currentItem = ev.target;
        if (currentItem.className.indexOf('el-tree-node') === -1)
            return;
        const code = ev.code;
        treeItems.value = Array.from(el$.value.querySelectorAll('.is-focusable[role=treeitem]'));
        const currentIndex = treeItems.value.indexOf(currentItem);
        let nextIndex;
        if ([EVENT_CODE.up, EVENT_CODE.down].indexOf(code) > -1) {
            ev.preventDefault();
            if (code === EVENT_CODE.up) {
                nextIndex = currentIndex === -1 ? 0 : currentIndex !== 0 ? currentIndex - 1 : treeItems.value.length - 1;
                const startIndex = nextIndex;
                while (true) {
                    if (store.value.getNode(treeItems.value[nextIndex].dataset.key).canFocus)
                        break;
                    nextIndex--;
                    if (nextIndex === startIndex) {
                        nextIndex = -1;
                        break;
                    }
                    if (nextIndex < 0) {
                        nextIndex = treeItems.value.length - 1;
                    }
                }
            }
            else {
                nextIndex = currentIndex === -1 ? 0 : (currentIndex < treeItems.value.length - 1) ? currentIndex + 1 : 0;
                const startIndex = nextIndex;
                while (true) {
                    if (store.value.getNode(treeItems.value[nextIndex].dataset.key).canFocus)
                        break;
                    nextIndex++;
                    if (nextIndex === startIndex) {
                        nextIndex = -1;
                        break;
                    }
                    if (nextIndex >= treeItems.value.length) {
                        nextIndex = 0;
                    }
                }
            }
            nextIndex !== -1 && treeItems.value[nextIndex].focus();
        }
        if ([EVENT_CODE.left, EVENT_CODE.right].indexOf(code) > -1) {
            ev.preventDefault();
            currentItem.click();
        }
        const hasInput = currentItem.querySelector('[type="checkbox"]');
        if ([EVENT_CODE.enter, EVENT_CODE.space].indexOf(code) > -1 && hasInput) {
            ev.preventDefault();
            hasInput.click();
        }
    };
    const initTabIndex = () => {
        var _a;
        treeItems.value = Array.from(el$.value.querySelectorAll('.is-focusable[role=treeitem]'));
        checkboxItems.value = Array.from(el$.value.querySelectorAll('input[type=checkbox]'));
        const checkedItem = el$.value.querySelectorAll('.is-checked[role=treeitem]');
        if (checkedItem.length) {
            checkedItem[0].setAttribute('tabindex', '0');
            return;
        }
        (_a = treeItems.value[0]) === null || _a === void 0 ? void 0 : _a.setAttribute('tabindex', '0');
    };
}

var script$2 = defineComponent({
    name: 'ElTree',
    components: { ElTreeNode: script$1 },
    props: {
        data: {
            type: Array,
        },
        emptyText: {
            type: String,
            default() {
                return t('el.tree.emptyText');
            },
        },
        renderAfterExpand: {
            type: Boolean,
            default: true,
        },
        nodeKey: String,
        checkStrictly: Boolean,
        defaultExpandAll: Boolean,
        expandOnClickNode: {
            type: Boolean,
            default: true,
        },
        checkOnClickNode: Boolean,
        checkDescendants: {
            type: Boolean,
            default: false,
        },
        autoExpandParent: {
            type: Boolean,
            default: true,
        },
        defaultCheckedKeys: Array,
        defaultExpandedKeys: Array,
        currentNodeKey: [String, Number],
        renderContent: Function,
        showCheckbox: {
            type: Boolean,
            default: false,
        },
        draggable: {
            type: Boolean,
            default: false,
        },
        allowDrag: Function,
        allowDrop: Function,
        props: {
            type: Object,
            default() {
                return {
                    children: 'children',
                    label: 'label',
                    disabled: 'disabled',
                };
            },
        },
        lazy: {
            type: Boolean,
            default: false,
        },
        highlightCurrent: Boolean,
        load: Function,
        filterNodeMethod: Function,
        accordion: Boolean,
        indent: {
            type: Number,
            default: 18,
        },
        iconClass: String,
    },
    emits: [
        'check-change',
        'current-change',
        'node-click',
        'node-contextmenu',
        'node-collapse',
        'node-expand',
        'check',
        'node-drag-start',
        'node-drag-end',
        'node-drop',
        'node-drag-leave',
        'node-drag-enter',
        'node-drag-over',
    ],
    setup(props, ctx) {
        const store = ref(new TreeStore({
            key: props.nodeKey,
            data: props.data,
            lazy: props.lazy,
            props: props.props,
            load: props.load,
            currentNodeKey: props.currentNodeKey,
            checkStrictly: props.checkStrictly,
            checkDescendants: props.checkDescendants,
            defaultCheckedKeys: props.defaultCheckedKeys,
            defaultExpandedKeys: props.defaultExpandedKeys,
            autoExpandParent: props.autoExpandParent,
            defaultExpandAll: props.defaultExpandAll,
            filterNodeMethod: props.filterNodeMethod,
        }));
        store.value.initialize();
        const root = ref(store.value.root);
        const currentNode = ref(null);
        const el$ = ref(null);
        const dropIndicator$ = ref(null);
        const { broadcastExpanded } = useNodeExpandEventBroadcast(props);
        const { dragState } = useDragNodeHandler({
            props, ctx, el$, dropIndicator$, store,
        });
        useKeydown({ el$ }, store);
        const isEmpty = computed(() => {
            const { childNodes } = root.value;
            return !childNodes || childNodes.length === 0 || childNodes.every(({ visible }) => !visible);
        });
        watch(() => props.defaultCheckedKeys, newVal => {
            store.value.setDefaultCheckedKey(newVal);
        });
        watch(() => props.defaultExpandedKeys, newVal => {
            store.value.defaultExpandedKeys = newVal;
            store.value.setDefaultExpandedKeys(newVal);
        });
        watch(() => props.data, newVal => {
            store.value.setData(newVal);
        }, { deep: true });
        watch(() => props.checkStrictly, newVal => {
            store.value.checkStrictly = newVal;
        });
        const filter = value => {
            if (!props.filterNodeMethod)
                throw new Error('[Tree] filterNodeMethod is required when filter');
            store.value.filter(value);
        };
        const getNodeKey$1 = (node) => {
            return getNodeKey(props.nodeKey, node.data);
        };
        const getNodePath = (data) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in getNodePath');
            const node = store.value.getNode(data);
            if (!node)
                return [];
            const path = [node.data];
            let parent = node.parent;
            while (parent && parent !== root.value) {
                path.push(parent.data);
                parent = parent.parent;
            }
            return path.reverse();
        };
        const getCheckedNodes = (leafOnly, includeHalfChecked) => {
            return store.value.getCheckedNodes(leafOnly, includeHalfChecked);
        };
        const getCheckedKeys = (leafOnly) => {
            return store.value.getCheckedKeys(leafOnly);
        };
        const getCurrentNode = () => {
            const currentNode = store.value.getCurrentNode();
            return currentNode ? currentNode.data : null;
        };
        const getCurrentKey = () => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in getCurrentKey');
            const currentNode = getCurrentNode();
            return currentNode ? currentNode[props.nodeKey] : null;
        };
        const setCheckedNodes = (nodes, leafOnly) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in setCheckedNodes');
            store.value.setCheckedNodes(nodes, leafOnly);
        };
        const setCheckedKeys = (keys, leafOnly) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in setCheckedKeys');
            store.value.setCheckedKeys(keys, leafOnly);
        };
        const setChecked = (data, checked, deep) => {
            store.value.setChecked(data, checked, deep);
        };
        const getHalfCheckedNodes = () => {
            return store.value.getHalfCheckedNodes();
        };
        const getHalfCheckedKeys = () => {
            return store.value.getHalfCheckedKeys();
        };
        const setCurrentNode = (node) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in setCurrentNode');
            store.value.setUserCurrentNode(node);
        };
        const setCurrentKey = (key) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in setCurrentKey');
            store.value.setCurrentNodeKey(key);
        };
        const getNode = (data) => {
            return store.value.getNode(data);
        };
        const remove = (data) => {
            store.value.remove(data);
        };
        const append = (data, parentNode) => {
            store.value.append(data, parentNode);
        };
        const insertBefore = (data, refNode) => {
            store.value.insertBefore(data, refNode);
        };
        const insertAfter = (data, refNode) => {
            store.value.insertAfter(data, refNode);
        };
        const handleNodeExpand = (nodeData, node, instance) => {
            broadcastExpanded(node);
            ctx.emit('node-expand', nodeData, node, instance);
        };
        const updateKeyChildren = (key, data) => {
            if (!props.nodeKey)
                throw new Error('[Tree] nodeKey is required in updateKeyChild');
            store.value.updateChildren(key, data);
        };
        provide('RootTree', {
            ctx,
            props,
            store,
            root,
            currentNode,
            instance: getCurrentInstance(),
        });
        return {
            store,
            root,
            currentNode,
            dragState,
            el$,
            dropIndicator$,
            isEmpty,
            filter,
            getNodeKey: getNodeKey$1,
            getNodePath,
            getCheckedNodes,
            getCheckedKeys,
            getCurrentNode,
            getCurrentKey,
            setCheckedNodes,
            setCheckedKeys,
            setChecked,
            getHalfCheckedNodes,
            getHalfCheckedKeys,
            setCurrentNode,
            setCurrentKey,
            getNode,
            remove,
            append,
            insertBefore,
            insertAfter,
            handleNodeExpand,
            updateKeyChildren,
        };
    },
});

const _hoisted_1$1 = {
  key: 0,
  class: "el-tree__empty-block"
};
const _hoisted_2 = { class: "el-tree__empty-text" };
const _hoisted_3 = {
  ref: "dropIndicator$",
  class: "el-tree__drop-indicator"
};

function render$1(_ctx, _cache, $props, $setup, $data, $options) {
  const _component_el_tree_node = resolveComponent("el-tree-node");

  return (openBlock(), createBlock("div", {
    ref: "el$",
    class: ["el-tree", {
      'el-tree--highlight-current': _ctx.highlightCurrent,
      'is-dragging': !!_ctx.dragState.draggingNode,
      'is-drop-not-allow': !_ctx.dragState.allowDrop,
      'is-drop-inner': _ctx.dragState.dropType === 'inner'
    }],
    role: "tree"
  }, [
    (openBlock(true), createBlock(Fragment, null, renderList(_ctx.root.childNodes, (child) => {
      return (openBlock(), createBlock(_component_el_tree_node, {
        key: _ctx.getNodeKey(child),
        node: child,
        props: _ctx.props,
        "render-after-expand": _ctx.renderAfterExpand,
        "show-checkbox": _ctx.showCheckbox,
        "render-content": _ctx.renderContent,
        onNodeExpand: _ctx.handleNodeExpand
      }, null, 8 /* PROPS */, ["node", "props", "render-after-expand", "show-checkbox", "render-content", "onNodeExpand"]))
    }), 128 /* KEYED_FRAGMENT */)),
    (_ctx.isEmpty)
      ? (openBlock(), createBlock("div", _hoisted_1$1, [
          createVNode("span", _hoisted_2, toDisplayString(_ctx.emptyText), 1 /* TEXT */)
        ]))
      : createCommentVNode("v-if", true),
    withDirectives(createVNode("div", _hoisted_3, null, 512 /* NEED_PATCH */), [
      [vShow, _ctx.dragState.showDropIndicator]
    ])
  ], 2 /* CLASS */))
}

script$2.render = render$1;
script$2.__file = "packages/tree/src/tree.vue";

script$2.install = (app) => {
    app.component(script$2.name, script$2);
};
const _Tree = script$2;

export default _Tree;