@nodeject/ui-components/esm/tree-view/graph.js

UI library for non-trivial components

import cytoscape from 'cytoscape';
export var toCytoscape = function (graph) {
    return cytoscape({
        headless: true,
        elements: graph
    });
};
/**
 * Returns a node's previous sibling
 * @param node
 * @returns {Cy.NodeCollection}
 */
export var getPreviousSibling = function (node) {
    var nodeId = node.id();
    if (hasSiblings(node)) {
        var mySiblingsAndCallingNode = siblingsAndCallingNode(node);
        for (var i = 0; mySiblingsAndCallingNode.length - 1; i++) {
            if (nodeId == mySiblingsAndCallingNode[i].id()) {
                if (i > 0) {
                    return mySiblingsAndCallingNode[i - 1];
                }
                else {
                    return null;
                }
            }
        }
    }
    else {
        return null;
    }
};
/**
 * Returns a node's next sibling
 * @param node
 * @returns {Cy.NodeCollection}
 */
export var getNextSibling = function (node) {
    var nodeId = node.id();
    if (hasSiblings(node)) {
        var mySiblingsAndCallingNode = siblingsAndCallingNode(node);
        for (var i = 0; siblingsAndCallingNode.length - 1; i++) {
            if (nodeId == mySiblingsAndCallingNode[i].id()) {
                if (i < mySiblingsAndCallingNode.length - 1) {
                    return mySiblingsAndCallingNode[i + 1];
                }
                else {
                    return null;
                }
            }
        }
    }
    else {
        return null;
    }
};
/**
 * Returns the next node in the tree
 * @param node
 */
export var getNextNode = function (node) {
    return hasChildren(node) ? node.children().first() : getNextSibling(node);
};
/**
 * Returns a node's parent's children
 * @param node
 * @returns {Cy.NodeCollection}
 */
export var siblingsAndCallingNode = function (node) {
    if (hasParent(node)) {
        return node.parent().children();
    }
    else {
        return node;
    }
};
/**
 * Returns true if node has siblings
 * @param node
 */
export var hasSiblings = function (node) {
    return node.siblings().length > 0;
};
/**
 * Returns true if node has children
 * @param node
 */
export var hasChildren = function (node) {
    return node.children().length > 0;
};
/**
 * Returns true if node has a parent
 * @param node
 */
export var hasParent = function (node) {
    return node.parent().length > 0;
};
/**
 * Returns true if node is Org Style, false if it's List Style
 * @param node
 */
export var isOrgStyle = function (node) {
    return typeof node === 'number' ? node === 0 : node.data().layoutStyle === 0;
};