react-native-tree-multi-select/lib/module/helpers/selectAll.helper.js

A super-fast, customizable tree view component for React Native with multi-selection, checkboxes, and search filtering capabilities.

"use strict";

import { getTreeViewStore } from "../store/treeView.store";
import { toggleCheckboxes } from "./toggleCheckbox.helper";

/**
 * Selects all nodes that are currently visible due to the applied filter.
 *
 * If there is no search text, then it selects all nodes; otherwise, it selects all visible nodes.
 */
export function selectAllFiltered(storeId) {
  const treeViewStore = getTreeViewStore(storeId);
  const {
    searchText,
    innerMostChildrenIds
  } = treeViewStore.getState();

  // If there's no search text, select all nodes
  if (!searchText) {
    selectAll(storeId);
  } else {
    // If there's search text, only select the visible nodes
    toggleCheckboxes(storeId, innerMostChildrenIds, true);
  }
}
;

/**
 * Unselects all nodes that are currently visible due to the applied filter.
 *
 * If there is no search text, then it unselects all nodes; otherwise, it unselects all visible nodes.
 */
export function unselectAllFiltered(storeId) {
  const treeViewStore = getTreeViewStore(storeId);
  const {
    searchText,
    innerMostChildrenIds
  } = treeViewStore.getState();

  // If there's no search text, unselect all nodes
  if (!searchText) {
    unselectAll(storeId);
  } else {
    // If there's search text, only unselect the visible nodes
    toggleCheckboxes(storeId, innerMostChildrenIds, false);
  }
}
;

/**
 * Selects all nodes in the tree.
 *
 * This function selects all nodes by adding all node ids to the checked set and clearing the indeterminate set.
 */
export function selectAll(storeId) {
  const treeViewStore = getTreeViewStore(storeId);
  const {
    nodeMap,
    updateChecked,
    updateIndeterminate
  } = treeViewStore.getState();

  // Create a new set containing the ids of all nodes
  const newChecked = new Set(nodeMap.keys());
  // Update the state to mark all nodes as checked

  updateChecked(newChecked);
  updateIndeterminate(new Set());
}
;

/**
 * Unselects all nodes in the tree.
 *
 * This function unselects all nodes by clearing both the checked and indeterminate sets.
 */
export function unselectAll(storeId) {
  const treeViewStore = getTreeViewStore(storeId);
  const {
    updateChecked,
    updateIndeterminate
  } = treeViewStore.getState();
  // Update the state to mark all nodes as unchecked

  updateChecked(new Set());
  updateIndeterminate(new Set());
}
;

/**
 * Get the ids of the innermost children in the tree
 *
 * @param filteredTreeNodes - The filtered tree data
 * @returns - array of ids of the inner most children only
 */
export function getInnerMostChildrenIdsInTree(filteredTreeNodes) {
  const allLeafIds = [];
  const getLeafNodes = _nodes => {
    for (let node of _nodes) {
      if (node.children) {
        getLeafNodes(node.children);
      } else {
        allLeafIds.push(node.id);
      }
    }
  };
  getLeafNodes(filteredTreeNodes);
  return allLeafIds;
}
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