| // Copyright 2018 Google LLC |
| // |
| // Licensed 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 |
| // |
| // https://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. |
| |
| /** |
| * @module elements-sk/collapse-sk |
| * @description <h2><code>collapse-sk</code></h2> |
| * |
| * <p> |
| * Is a collapsable element, upon collapse the element and its children |
| * are no longer displayed. |
| * </p> |
| * |
| * @attr closed - A boolean attribute that, if present, causes the element to |
| * collapse, i.e., transition to display: none. |
| * |
| */ |
| import { define } from '../define'; |
| import { upgradeProperty } from '../upgradeProperty'; |
| |
| export class CollapseSk extends HTMLElement { |
| connectedCallback(): void { |
| upgradeProperty(this, 'closed'); |
| } |
| |
| /** Mirrors the closed attribute. */ |
| get closed(): boolean { |
| return this.hasAttribute('closed'); |
| } |
| |
| set closed(val: boolean) { |
| if (val) { |
| this.setAttribute('closed', ''); |
| } else { |
| this.removeAttribute('closed'); |
| } |
| } |
| } |
| |
| define('collapse-sk', CollapseSk); |