321 lines
8.2 KiB
TypeScript
321 lines
8.2 KiB
TypeScript
import {
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DeesElement,
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property,
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html,
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customElement,
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type TemplateResult,
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css,
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cssManager,
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} from '@design.estate/dees-element';
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import * as domtools from '@design.estate/dees-domtools';
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import * as webcontainer from '@webcontainer/api';
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import { Terminal } from 'xterm';
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import { FitAddon } from 'xterm-addon-fit';
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declare global {
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interface HTMLElementTagNameMap {
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'dees-terminal': DeesTerminal;
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}
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}
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@customElement('dees-terminal')
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export class DeesTerminal extends DeesElement {
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public static demo = () => html` <dees-terminal></dees-terminal> `;
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// INSTANCE
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private resizeObserver: ResizeObserver;
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@property()
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public setupCommand = `pnpm install @git.zone/tsbuild && clear && echo 'welcome'`;
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constructor() {
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super();
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this.resizeObserver = new ResizeObserver((entries) => {
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for (const entry of entries) {
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// Handle the resize event
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console.log(`Terminal Resized`);
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this.handleResize();
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}
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});
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}
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public static styles = [
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cssManager.defaultStyles,
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css`
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:host {
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padding: 20px;
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background: #000;
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position: absolute;
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height: 100%;
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width: 100%;
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}
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* {
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box-sizing: border-box;
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}
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#container {
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position: absolute;
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height: calc(100% - 40px);
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width: calc(100% - 40px);
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}
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/**
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* Copyright (c) 2014 The xterm.js authors. All rights reserved.
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* Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
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* https://github.com/chjj/term.js
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* @license MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* Originally forked from (with the author's permission):
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* Fabrice Bellard's javascript vt100 for jslinux:
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* http://bellard.org/jslinux/
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* Copyright (c) 2011 Fabrice Bellard
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* The original design remains. The terminal itself
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* has been extended to include xterm CSI codes, among
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* other features.
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*/
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/**
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* Default styles for xterm.js
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*/
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.xterm {
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font-feature-settings: 'liga' 0;
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position: relative;
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user-select: none;
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-ms-user-select: none;
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-webkit-user-select: none;
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}
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.xterm.focus,
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.xterm:focus {
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outline: none;
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}
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.xterm .xterm-helpers {
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position: absolute;
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top: 0;
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/**
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* The z-index of the helpers must be higher than the canvases in order for
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* IMEs to appear on top.
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*/
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z-index: 5;
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}
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.xterm .xterm-helper-textarea {
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padding: 0;
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border: 0;
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margin: 0;
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/* Move textarea out of the screen to the far left, so that the cursor is not visible */
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position: absolute;
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opacity: 0;
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left: -9999em;
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top: 0;
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width: 0;
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height: 0;
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z-index: -5;
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/** Prevent wrapping so the IME appears against the textarea at the correct position */
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white-space: nowrap;
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overflow: hidden;
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resize: none;
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}
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.xterm .composition-view {
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/* TODO: Composition position got messed up somewhere */
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background: #000;
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color: #fff;
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display: none;
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position: absolute;
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white-space: nowrap;
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z-index: 1;
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}
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.xterm .composition-view.active {
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display: block;
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}
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.xterm .xterm-viewport {
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/* On OS X this is required in order for the scroll bar to appear fully opaque */
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background-color: #000;
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overflow-y: scroll;
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cursor: default;
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position: absolute;
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right: 0;
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left: 0;
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top: 0;
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bottom: 0;
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}
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.xterm .xterm-screen {
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position: relative;
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}
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.xterm .xterm-screen canvas {
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position: absolute;
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left: 0;
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top: 0;
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}
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.xterm .xterm-scroll-area {
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visibility: hidden;
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}
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.xterm-char-measure-element {
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display: inline-block;
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visibility: hidden;
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position: absolute;
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top: 0;
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left: -9999em;
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line-height: normal;
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}
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.xterm {
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cursor: text;
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}
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.xterm.enable-mouse-events {
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/* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
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cursor: default;
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}
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.xterm.xterm-cursor-pointer {
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cursor: pointer;
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}
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.xterm.column-select.focus {
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/* Column selection mode */
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cursor: crosshair;
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}
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.xterm .xterm-accessibility,
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.xterm .xterm-message {
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position: absolute;
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left: 0;
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top: 0;
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bottom: 0;
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right: 0;
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z-index: 10;
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color: transparent;
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}
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.xterm .live-region {
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position: absolute;
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left: -9999px;
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width: 1px;
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height: 1px;
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overflow: hidden;
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}
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.xterm-dim {
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opacity: 0.5;
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}
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.xterm-underline {
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text-decoration: underline;
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}
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`,
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];
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public render(): TemplateResult {
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return html`
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<div class="mainbox">
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<div id="container"></div>
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</div>
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`;
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}
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private fitAddon: FitAddon;
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public async firstUpdated(
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_changedProperties: Map<string | number | symbol, unknown>
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): Promise<void> {
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const domtools = await this.domtoolsPromise;
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super.firstUpdated(_changedProperties);
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const container = this.shadowRoot.getElementById('container');
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const term = new Terminal({
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convertEol: true,
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cursorBlink: true,
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});
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this.fitAddon = new FitAddon();
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term.loadAddon(this.fitAddon);
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// Open the terminal in #terminal-container
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term.open(container);
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// Make the terminal's size and geometry fit the size of #terminal-container
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this.fitAddon.fit();
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term.write(`dees-terminal custom terminal. \r\n$ `);
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// lets start the webcontainer
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// Call only once
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const webcontainerInstance = await webcontainer.WebContainer.boot();
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const shellProcess = await webcontainerInstance.spawn('jsh');
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shellProcess.output.pipeTo(
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new WritableStream({
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write(data) {
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term.write(data);
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},
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})
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);
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const input = shellProcess.input.getWriter();
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term.onData((data) => {
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input.write(data);
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});
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await this.waitForPrompt(term, '~/');
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input.write(this.setupCommand);
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input.write(`\n`);
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}
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async connectedCallback(): Promise<void> {
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await super.connectedCallback();
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this.resizeObserver.observe(this);
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}
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async disconnectedCallback(): Promise<void> {
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this.resizeObserver.unobserve(this);
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await super.disconnectedCallback();
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}
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handleResize() {
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this.fitAddon.fit();
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}
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private async waitForPrompt(term: Terminal, prompt: string): Promise<void> {
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return new Promise<void>((resolve) => {
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const checkPrompt = () => {
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const lines = term.buffer.active;
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for (let i = 0; i < lines.length; i++) {
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const line = lines.getLine(i);
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if (line && line.translateToString().includes(prompt)) {
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resolve();
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return;
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}
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}
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setTimeout(checkPrompt, 100); // check every 100 ms
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};
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checkPrompt();
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});
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}
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}
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