| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| import {Selectable} from "./tobago-selectable"; |
| import {TreeNode} from "./tobago-tree-node"; |
| |
| export class Tree extends HTMLElement { |
| |
| constructor() { |
| super(); |
| } |
| |
| connectedCallback(): void { |
| } |
| |
| clearSelectedNodes(): void { |
| this.hiddenInputSelected.value = "[]"; //empty set |
| } |
| |
| addSelectedNode(selectedNode: number): void { |
| const selectedNodes = new Set(JSON.parse(this.hiddenInputSelected.value)); |
| selectedNodes.add(selectedNode); |
| this.hiddenInputSelected.value = JSON.stringify(Array.from(selectedNodes)); |
| } |
| |
| private getSelectedNodes(): NodeListOf<TreeNode> { |
| let queryString: string = ""; |
| for (const selectedNodeIndex of JSON.parse(this.hiddenInputSelected.value)) { |
| if (queryString.length > 0) { |
| queryString += ", "; |
| } |
| queryString += "tobago-tree-node[index='" + selectedNodeIndex + "']"; |
| } |
| |
| if (queryString.length > 0) { |
| return this.querySelectorAll(queryString) as NodeListOf<TreeNode>; |
| } else { |
| return null; |
| } |
| } |
| |
| deleteSelectedNode(selectedNode: number): void { |
| const selectedNodes = new Set(JSON.parse(this.hiddenInputSelected.value)); |
| selectedNodes.delete(selectedNode); |
| this.hiddenInputSelected.value = JSON.stringify(Array.from(selectedNodes)); |
| } |
| |
| private get hiddenInputSelected(): HTMLInputElement { |
| return this.querySelector(":scope > .tobago-tree-selected"); |
| } |
| |
| private clearExpandedNodes(): void { |
| this.hiddenInputExpanded.value = "[]"; //empty set |
| } |
| |
| private addExpandedNode(expandedNode: number): void { |
| const expandedNodes = new Set(JSON.parse(this.hiddenInputExpanded.value)); |
| expandedNodes.add(expandedNode); |
| this.hiddenInputExpanded.value = JSON.stringify(Array.from(expandedNodes)); |
| } |
| |
| private deleteExpandedNode(expandedNode: number): void { |
| const expandedNodes = new Set(JSON.parse(this.hiddenInputExpanded.value)); |
| expandedNodes.delete(expandedNode); |
| this.hiddenInputExpanded.value = JSON.stringify(Array.from(expandedNodes)); |
| } |
| |
| get hiddenInputExpanded(): HTMLInputElement { |
| return this.querySelector(":scope > .tobago-tree-expanded"); |
| } |
| |
| get selectable(): Selectable { |
| return Selectable[this.getAttribute("selectable")]; |
| } |
| } |
| |
| document.addEventListener("DOMContentLoaded", function (event: Event): void { |
| window.customElements.define("tobago-tree", Tree); |
| }); |