tdesign-vue/esm/tree/hooks/useTreeNodes.js

tdesign-vue

/**
 * tdesign v1.12.1
 * (c) 2025 tdesign
 * @license MIT
 */

import { isUndefined } from 'lodash-es';
import '../adapt.js';
import TreeItem from '../tree-item.js';
import useTreeEvents from './useTreeEvents.js';
import { ref, watch } from '@vue/composition-api';
import { privateKey } from '../../_common/js/tree/tree-node.js';
import 'vue';
import '../../utils/withInstall.js';
import '@babel/runtime/helpers/defineProperty';
import '../../hooks/useVModel.js';
import '../../hooks/useDefaultValue.js';
import 'tdesign-icons-vue';
import '../../checkbox/index.js';
import '../../checkbox/group.js';
import '../../_chunks/dep-323b993c.js';
import '@babel/runtime/helpers/typeof';
import '@babel/runtime/helpers/toConsumableArray';
import '@babel/runtime/helpers/slicedToArray';
import '../../utils/helper.js';
import '@babel/runtime/helpers/objectWithoutProperties';
import '../../checkbox/checkbox.js';
import '../../checkbox/props.js';
import '../../hooks/index.js';
import '../../utils/render-tnode.js';
import '@babel/runtime/helpers/readOnlyError';
import '../../hooks/slots.js';
import '../../hooks/useCommonClassName.js';
import '../../config-provider/useConfig.js';
import '../../config-provider/context.js';
import '../../_common/js/global-config/default-config.js';
import '../../_common/js/global-config/locale/zh_CN.js';
import '../../_chunks/dep-c44a474d.js';
import '../../_chunks/dep-d639fbd7.js';
import 'dayjs';
import '../../_chunks/dep-3c66615e.js';
import '../../config-provider/type.js';
import '../../_common/js/global-config/t.js';
import '../../hooks/useConfig.js';
import '../../hooks/useDestroyOnClose.js';
import '../../hooks/useElementLazyRender.js';
import '../../_common/js/utils/observe.js';
import '../../hooks/useFormDisabled.js';
import '../../hooks/useGlobalIcon.js';
import '../../hooks/useLazyLoad.js';
import '../../hooks/useResizeObserver.js';
import '../../hooks/useVirtualScrollNew.js';
import '../../hooks/useImagePreviewUrl.js';
import '../../_common/js/upload/utils.js';
import '../../_common/js/log/log.js';
import '../../checkbox/constants.js';
import '../../checkbox/store.js';
import '@babel/runtime/helpers/classCallCheck';
import '@babel/runtime/helpers/createClass';
import '../../checkbox/hooks/useKeyboardEvent.js';
import '../../_common/js/common.js';
import '../../checkbox/checkbox-group-props.js';
import './style/index.js';
import '../../checkbox/type.js';
import '../../loading/index.js';
import '../../loading/directive.js';
import '../../loading/plugin.js';
import '../../loading/loading.js';
import '../../loading/icon/gradient.js';
import '../../_common/js/loading/circle-adapter.js';
import '../../_common/js/utils/setStyle.js';
import '../../_common/js/utils/helper.js';
import '../../config-provider/config-receiver.js';
import '../../utils/mixins.js';
import '../../utils/dom.js';
import 'raf';
import '../../utils/easing.js';
import '../../utils/transfer-dom.js';
import '../../loading/props.js';
import '../../config.js';
import '../../loading/type.js';
import '@babel/runtime/helpers/asyncToGenerator';
import '@babel/runtime/regenerator';
import '../../_common/js/tree/tree-node-model.js';
import '../../_common/js/log/index.js';
import './useItemState.js';
import './useTreeItem.js';
import './useItemEvents.js';
import './useRenderIcon.js';
import '../util.js';
import './useRenderLabel.js';
import './useRenderLine.js';
import './useRenderOperations.js';
import './useDraggable.js';
import './useTreeAction.js';

function useTreeNodes(state) {
  var store = state.store,
    scope = state.scope,
    allNodes = state.allNodes,
    nodes = state.nodes,
    virtualConfig = state.virtualConfig;
  var _useTreeEvents = useTreeEvents(state),
    handleClick = _useTreeEvents.handleClick,
    handleChange = _useTreeEvents.handleChange;
  var nodesEmpty = ref(false);
  var cacheMap = /* @__PURE__ */new Map();
  var refresh = function refresh() {
    allNodes.value = store.getNodes();
  };
  var refreshVisibleNodes = function refreshVisibleNodes() {
    var isVirtual = virtualConfig === null || virtualConfig === void 0 ? void 0 : virtualConfig.isVirtualScroll.value;
    if (isVirtual) return;
    var list = [];
    var hasVisibleNode = false;
    allNodes.value.forEach(function (node) {
      if (node.visible) {
        hasVisibleNode = true;
        cacheMap.set(node.value, node.value);
      }
      if (!isUndefined(cacheMap.get(node.value))) {
        list.push(node);
      }
    });
    cacheMap.forEach(function (value) {
      if (!store.getNode(value)) {
        cacheMap["delete"](value);
      }
    });
    nodes.value = list;
    nodesEmpty.value = !hasVisibleNode;
  };
  var refreshVirtualNodes = function refreshVirtualNodes() {
    var isVirtual = virtualConfig === null || virtualConfig === void 0 ? void 0 : virtualConfig.isVirtualScroll.value;
    if (!isVirtual) return;
    var list = virtualConfig.visibleData.value;
    nodes.value = list;
    nodesEmpty.value = list.length <= 0;
  };
  var renderItem = function renderItem(h, node, index, stateId) {
    var rowIndex = node.__VIRTUAL_SCROLL_INDEX || index;
    var nodeUniqueId = node[privateKey];
    var treeItem = h(TreeItem, {
      "key": nodeUniqueId,
      "attrs": {
        "rowIndex": rowIndex,
        "stateId": stateId,
        "itemKey": nodeUniqueId,
        "treeScope": scope
      },
      "on": {
        "click": handleClick,
        "change": handleChange
      }
    });
    return treeItem;
  };
  var renderTreeNodes = function renderTreeNodes(h) {
    var stateId = "render-".concat(new Date().getTime());
    var treeNodeViews = nodes.value.map(function (node, index) {
      return renderItem(h, node, index, stateId);
    });
    return treeNodeViews;
  };
  watch(allNodes, refreshVisibleNodes);
  watch(virtualConfig.visibleData, refreshVirtualNodes);
  refresh();
  refreshVisibleNodes();
  refreshVirtualNodes();
  store.emitter.on("update", refresh);
  return {
    nodesEmpty: nodesEmpty,
    renderTreeNodes: renderTreeNodes
  };
}

export { useTreeNodes as default };
//# sourceMappingURL=useTreeNodes.js.map