| /** |
| * @license |
| * Copyright 2022 Google LLC |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| import '@gerritcodereview/typescript-api/gerrit'; |
| import {PluginApi} from '@gerritcodereview/typescript-api/plugin'; |
| import {html, LitElement} from 'lit'; |
| import {customElement, property, query} from 'lit/decorators.js'; |
| |
| import {setScriptSrc} from './safe-script'; |
| |
| declare global { |
| interface HTMLElementTagNameMap { |
| 'gr-editor': GrEditor; |
| } |
| } |
| |
| /** |
| * This component just loads the CodeMirror js bundle lazily and converts the |
| * Gerrit preferences into CodeMirror params. |
| */ |
| @customElement('gr-editor') |
| export class GrEditor extends LitElement { |
| @property({type: String}) fileContent?: string; |
| |
| @property({type: String}) fileType?: string; |
| |
| @property({type: Number}) lineNum?: number; |
| |
| @property({type: Object}) prefs?: unknown; |
| |
| @property({type: Object}) plugin?: PluginApi; |
| |
| @query('#codemirror') mirror?: HTMLScriptElement; |
| |
| override render() { |
| if (!window.customElements.get('codemirror-element')) return; |
| |
| return html` |
| <codemirror-element |
| id="codemirror" |
| .lineNum=${this.lineNum} |
| .prefs=${this.prefs} |
| .fileContent=${this.fileContent} |
| .fileType=${this.fileType} |
| > |
| </codemirror-element> |
| `; |
| } |
| |
| override connectedCallback() { |
| super.connectedCallback(); |
| this.loadCodeMirrorElement(); |
| window.customElements.whenDefined('codemirror-element').then(() => { |
| this.requestUpdate(); |
| }); |
| } |
| |
| private loadCodeMirrorElement() { |
| if (document.head.querySelector('#codemirror')) return; |
| |
| const script = document.createElement('script'); |
| script.id = 'codemirror'; |
| script.crossOrigin = 'anonymous'; |
| setScriptSrc(script, this.plugin?.url() ?? ''); |
| document.head.appendChild(script); |
| } |
| } |