1/* 2 * Copyright (C) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15export function element(tag) { 16 return (el) => { 17 if (!customElements.get(tag)) { 18 customElements.define(tag, el); 19 } 20 }; 21} 22 23export class BaseElement extends HTMLElement { 24 constructor(args = null) { 25 super(); 26 this.args = args; 27 this.attachShadow({mode: 'open'}).innerHTML = this.initHtml(); 28 this.initElements(); 29 } 30 31 connectedCallback() { 32 } 33 34 disconnectedCallback() { 35 } 36 37 adoptedCallback() { 38 } 39 40 attributeChangedCallback(name, oldValue, newValue) { 41 } 42} 43