1/* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20import { App } from '../../app/App'; 21import Page from '../../page'; 22 23const pageMap: Map<string, Page> = App.pageMap; 24 25/** 26 * Get an element tree of a page. 27 * @param {string} id - Page id. 28 * @return {Object} A virtual dom tree. 29 */ 30export function getRoot(id: string): object { 31 const page: Page = pageMap.get(id); 32 let result: any; 33 if (page) { 34 const doc: any = page.doc || {}; 35 const body = doc.body || {}; 36 result = body.toJSON ? body.toJSON() : {}; 37 } else { 38 result = new Error(`invalid page id "${id}"`); 39 } 40 return result; 41} 42