element-plus/lib/components/tree/src/tree.vue2.js

A Component Library for Vue 3

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var vue = require('vue');
var lodashUnified = require('lodash-unified');
var treeStore = require('./model/tree-store.js');
var util = require('./model/util.js');
var treeNode = require('./tree-node.vue.js');
var useNodeExpandEventBroadcast = require('./model/useNodeExpandEventBroadcast.js');
var useDragNode = require('./model/useDragNode.js');
var useKeydown = require('./model/useKeydown.js');
var tokens = require('./tokens.js');
var tree = require('./tree.js');
var index = require('../../../hooks/use-locale/index.js');
var index$1 = require('../../../hooks/use-namespace/index.js');
var constants = require('../../form/src/constants.js');

var _sfc_main = vue.defineComponent({
  name: "ElTree",
  components: { ElTreeNode: treeNode.default },
  props: tree.treeProps,
  emits: tree.treeEmits,
  setup(props, ctx) {
    const { t } = index.useLocale();
    const ns = index$1.useNamespace("tree");
    const store = vue.ref(
      new treeStore.default({
        key: props.nodeKey,
        data: props.data,
        lazy: props.lazy,
        props: props.props,
        load: props.load,
        currentNodeKey: props.currentNodeKey,
        checkStrictly: props.checkStrictly,
        checkDescendants: props.checkDescendants,
        defaultCheckedKeys: props.defaultCheckedKeys,
        defaultExpandedKeys: props.defaultExpandedKeys,
        autoExpandParent: props.autoExpandParent,
        defaultExpandAll: props.defaultExpandAll,
        filterNodeMethod: props.filterNodeMethod
      })
    );
    store.value.initialize();
    const root = vue.ref(store.value.root);
    const currentNode = vue.ref(null);
    const el$ = vue.ref(null);
    const dropIndicator$ = vue.ref(null);
    const { broadcastExpanded } = useNodeExpandEventBroadcast.useNodeExpandEventBroadcast(props);
    const { dragState } = useDragNode.useDragNodeHandler({
      props,
      ctx,
      el$,
      dropIndicator$,
      store
    });
    useKeydown.useKeydown({ el$ }, store);
    const instance = vue.getCurrentInstance();
    const isSelectTree = vue.computed(() => {
      let parent = instance == null ? void 0 : instance.parent;
      while (parent) {
        if (parent.type.name === "ElTreeSelect") {
          return true;
        }
        parent = parent.parent;
      }
      return false;
    });
    const isEmpty = vue.computed(() => {
      const { childNodes } = root.value;
      return (!childNodes || childNodes.length === 0 || childNodes.every(({ visible }) => !visible)) && !isSelectTree.value;
    });
    vue.watch(
      () => props.currentNodeKey,
      (newVal) => {
        store.value.setCurrentNodeKey(newVal != null ? newVal : null);
      }
    );
    vue.watch(
      () => props.defaultCheckedKeys,
      (newVal, oldVal) => {
        if (lodashUnified.isEqual(newVal, oldVal)) return;
        store.value.setDefaultCheckedKey(newVal != null ? newVal : []);
      }
    );
    vue.watch(
      () => props.defaultExpandedKeys,
      (newVal) => {
        store.value.setDefaultExpandedKeys(newVal != null ? newVal : []);
      }
    );
    vue.watch(
      () => props.data,
      (newVal) => {
        store.value.setData(newVal);
      },
      { deep: true }
    );
    vue.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 = (node) => {
      return util.getNodeKey(props.nodeKey, node.data);
    };
    const requireNodeKey = (methodName) => {
      if (!props.nodeKey) {
        throw new Error(`[Tree] nodeKey is required in ${methodName}`);
      }
    };
    const getNodePath = (data) => {
      requireNodeKey("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 currentNode2 = store.value.getCurrentNode();
      return currentNode2 ? currentNode2.data : null;
    };
    const getCurrentKey = () => {
      requireNodeKey("getCurrentKey");
      const currentNode2 = getCurrentNode();
      return currentNode2 ? currentNode2[props.nodeKey] : null;
    };
    const setCheckedNodes = (nodes, leafOnly) => {
      requireNodeKey("setCheckedNodes");
      store.value.setCheckedNodes(nodes, leafOnly);
    };
    const setCheckedKeys = (keys, leafOnly) => {
      requireNodeKey("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, shouldAutoExpandParent = true) => {
      requireNodeKey("setCurrentNode");
      util.handleCurrentChange(store, ctx.emit, () => {
        broadcastExpanded(node);
        store.value.setUserCurrentNode(node, shouldAutoExpandParent);
      });
    };
    const setCurrentKey = (key = null, shouldAutoExpandParent = true) => {
      requireNodeKey("setCurrentKey");
      util.handleCurrentChange(store, ctx.emit, () => {
        broadcastExpanded();
        store.value.setCurrentNodeKey(key, shouldAutoExpandParent);
      });
    };
    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, instance2) => {
      broadcastExpanded(node);
      ctx.emit("node-expand", nodeData, node, instance2);
    };
    const updateKeyChildren = (key, data) => {
      requireNodeKey("updateKeyChild");
      store.value.updateChildren(key, data);
    };
    vue.provide(tokens.ROOT_TREE_INJECTION_KEY, {
      ctx,
      props,
      store,
      root,
      currentNode,
      instance
    });
    vue.provide(constants.formItemContextKey, void 0);
    return {
      ns,
      // ref
      store,
      root,
      currentNode,
      dragState,
      el$,
      dropIndicator$,
      // computed
      isEmpty,
      // methods
      filter,
      getNodeKey,
      getNodePath,
      getCheckedNodes,
      getCheckedKeys,
      getCurrentNode,
      getCurrentKey,
      setCheckedNodes,
      setCheckedKeys,
      setChecked,
      getHalfCheckedNodes,
      getHalfCheckedKeys,
      setCurrentNode,
      setCurrentKey,
      t,
      getNode,
      remove,
      append,
      insertBefore,
      insertAfter,
      handleNodeExpand,
      updateKeyChildren
    };
  }
});

exports.default = _sfc_main;
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