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https://github.com/khoaliber/dockhand.git
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Initial commit
This commit is contained in:
Jarek Krochmalski
343
routes/terminal/TerminalEmulator.svelte
Normal file
343
routes/terminal/TerminalEmulator.svelte
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@@ -0,0 +1,343 @@
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<script lang="ts">
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import { onMount, onDestroy } from 'svelte';
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import { RefreshCw, Copy, Trash2, Type } from 'lucide-svelte';
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import * as Select from '$lib/components/ui/select';
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// Dynamic imports for browser-only xterm
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let Terminal: any;
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let FitAddon: any;
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let WebLinksAddon: any;
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let xtermLoaded = $state(false);
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interface Props {
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containerId: string;
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containerName: string;
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shell: string;
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user: string;
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envId: number | null;
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class?: string;
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}
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let { containerId, containerName, shell, user, envId, class: className = '' }: Props = $props();
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// Single session for this terminal instance
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let terminal: any = null;
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let fitAddon: any = null;
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let ws: WebSocket | null = null;
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let sessionInitialized = $state(false);
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let terminalRef: HTMLDivElement;
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let connected = $state(false);
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let error = $state<string | null>(null);
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// Font size options
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let fontSize = $state(13);
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const fontSizeOptions = [10, 12, 13, 14, 16];
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// Clear terminal
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function clearTerminal() {
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if (terminal) {
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terminal.clear();
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terminal.focus();
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}
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}
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// Copy terminal output
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async function copyOutput() {
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if (terminal) {
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const buffer = terminal.buffer.active;
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let text = '';
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for (let i = 0; i < buffer.length; i++) {
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const line = buffer.getLine(i);
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if (line) {
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text += line.translateToString(true) + '\n';
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}
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}
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try {
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await navigator.clipboard.writeText(text.trim());
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} catch (err) {
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console.error('Failed to copy:', err);
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}
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terminal.focus();
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}
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}
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// Update font size
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function updateFontSize(newSize: number) {
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fontSize = newSize;
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if (terminal) {
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terminal.options.fontSize = newSize;
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fitAddon?.fit();
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}
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}
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function initTerminal() {
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if (!terminalRef || !xtermLoaded) return;
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// If we already have a terminal, just re-attach it
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if (terminal && sessionInitialized) {
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terminal.open(terminalRef);
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fitAddon?.fit();
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terminal.focus();
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return;
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}
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// Create new terminal
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terminal = new Terminal({
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cursorBlink: true,
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fontFamily: 'Menlo, Monaco, "Courier New", monospace',
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fontSize: fontSize,
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theme: {
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background: '#0c0c0c',
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foreground: '#cccccc',
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cursor: '#ffffff',
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cursorAccent: '#000000',
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selectionBackground: '#264f78',
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black: '#0c0c0c',
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red: '#c50f1f',
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green: '#13a10e',
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yellow: '#c19c00',
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blue: '#0037da',
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magenta: '#881798',
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cyan: '#3a96dd',
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white: '#cccccc',
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brightBlack: '#767676',
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brightRed: '#e74856',
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brightGreen: '#16c60c',
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brightYellow: '#f9f1a5',
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brightBlue: '#3b78ff',
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brightMagenta: '#b4009e',
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brightCyan: '#61d6d6',
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brightWhite: '#f2f2f2'
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}
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});
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fitAddon = new FitAddon();
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terminal.loadAddon(fitAddon);
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terminal.loadAddon(new WebLinksAddon());
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terminal.open(terminalRef);
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fitAddon.fit();
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// Handle Ctrl+L to clear terminal
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terminal.attachCustomKeyEventHandler((e: KeyboardEvent) => {
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if ((e.ctrlKey || e.metaKey) && e.key === 'l') {
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e.preventDefault();
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clearTerminal();
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return false;
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}
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return true;
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});
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// Handle terminal input
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terminal.onData((data: string) => {
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if (ws && ws.readyState === WebSocket.OPEN) {
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ws.send(JSON.stringify({ type: 'input', data }));
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}
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});
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// Handle resize
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terminal.onResize(({ cols, rows }: { cols: number; rows: number }) => {
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if (ws && ws.readyState === WebSocket.OPEN) {
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ws.send(JSON.stringify({ type: 'resize', cols, rows }));
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}
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});
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sessionInitialized = true;
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// Connect to container
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connect();
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}
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function connect() {
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if (!terminal) return;
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error = null;
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const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
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let wsUrl = `${protocol}//${window.location.host}/api/containers/${containerId}/exec?shell=${encodeURIComponent(shell)}&user=${encodeURIComponent(user)}`;
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if (envId) {
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wsUrl += `&envId=${envId}`;
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}
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terminal.writeln(`\x1b[90mConnecting to ${containerName}...\x1b[0m`);
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terminal.writeln(`\x1b[90mShell: ${shell}, User: ${user || 'default'}\x1b[0m`);
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terminal.writeln('');
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ws = new WebSocket(wsUrl);
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ws.onopen = () => {
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connected = true;
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terminal?.focus();
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// Send initial resize
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if (fitAddon && terminal) {
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const dims = fitAddon.proposeDimensions();
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if (dims) {
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ws?.send(JSON.stringify({ type: 'resize', cols: dims.cols, rows: dims.rows }));
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}
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}
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};
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ws.onmessage = (event) => {
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try {
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const msg = JSON.parse(event.data);
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if (msg.type === 'output') {
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terminal?.write(msg.data);
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} else if (msg.type === 'error') {
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error = msg.message;
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terminal?.writeln(`\x1b[31mError: ${msg.message}\x1b[0m`);
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} else if (msg.type === 'exit') {
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terminal?.writeln('\x1b[90m\r\nSession ended.\x1b[0m');
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connected = false;
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}
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} catch (e) {
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terminal?.write(event.data);
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}
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};
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ws.onerror = () => {
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error = 'Connection error';
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terminal?.writeln('\x1b[31mConnection error\x1b[0m');
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};
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ws.onclose = () => {
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connected = false;
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terminal?.writeln('\x1b[90mDisconnected.\x1b[0m');
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};
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}
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function reconnect() {
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if (ws) {
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ws.close();
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ws = null;
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}
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connected = false;
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terminal?.writeln('\x1b[90m\r\nReconnecting...\x1b[0m');
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connect();
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}
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// Handle window resize
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function handleResize() {
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if (fitAddon && terminal) {
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fitAddon.fit();
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}
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}
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// Initialize terminal when DOM is ready
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$effect(() => {
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if (xtermLoaded && terminalRef && !sessionInitialized) {
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setTimeout(() => {
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initTerminal();
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}, 50);
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}
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});
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// Fit terminal on mount
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$effect(() => {
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if (sessionInitialized && fitAddon && terminal) {
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setTimeout(() => {
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fitAddon?.fit();
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terminal?.focus();
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}, 50);
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}
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});
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onMount(async () => {
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window.addEventListener('resize', handleResize);
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// Dynamically load xterm modules
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const xtermModule = await import('@xterm/xterm');
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const fitModule = await import('@xterm/addon-fit');
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const webLinksModule = await import('@xterm/addon-web-links');
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Terminal = xtermModule.Terminal || xtermModule.default?.Terminal;
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FitAddon = fitModule.FitAddon || fitModule.default?.FitAddon;
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WebLinksAddon = webLinksModule.WebLinksAddon || webLinksModule.default?.WebLinksAddon;
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await import('@xterm/xterm/css/xterm.css');
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xtermLoaded = true;
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});
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onDestroy(() => {
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window.removeEventListener('resize', handleResize);
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// Clean up
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if (ws) ws.close();
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if (terminal) terminal.dispose();
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});
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</script>
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<div class="flex flex-col bg-zinc-950 rounded-lg border border-zinc-800 overflow-hidden {className}">
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<!-- Header bar -->
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<div class="flex items-center justify-between px-3 py-1.5 border-b border-zinc-800 bg-zinc-900/50 shrink-0">
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<div class="flex items-center gap-2">
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<span class="text-xs text-zinc-400">Terminal:</span>
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<span class="text-xs text-zinc-200 font-medium">{containerName}</span>
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{#if connected}
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<span class="inline-flex items-center gap-1 text-xs text-green-500">
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<span class="w-1.5 h-1.5 rounded-full bg-green-500 animate-pulse"></span>
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Connected
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</span>
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{:else}
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<span class="text-xs text-zinc-500">Disconnected</span>
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{/if}
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</div>
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<div class="flex items-center gap-2">
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<!-- Font size -->
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<Select.Root type="single" value={String(fontSize)} onValueChange={(v) => updateFontSize(Number(v))}>
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<Select.Trigger class="h-6 w-16 bg-zinc-800 border-zinc-700 text-xs text-zinc-300 px-1.5">
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<Type class="w-3 h-3 mr-1 text-zinc-400" />
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<span>{fontSize}px</span>
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</Select.Trigger>
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<Select.Content>
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{#each fontSizeOptions as size}
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<Select.Item value={String(size)} label="{size}px">
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<Type class="w-3 h-3 mr-1.5 text-muted-foreground" />
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{size}px
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</Select.Item>
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{/each}
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</Select.Content>
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</Select.Root>
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<!-- Clear -->
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<button
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onclick={clearTerminal}
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class="p-1 rounded hover:bg-zinc-800 transition-colors"
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title="Clear terminal (Ctrl+L)"
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>
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<Trash2 class="w-3 h-3 text-zinc-500 hover:text-zinc-300" />
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</button>
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<!-- Copy -->
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<button
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onclick={copyOutput}
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class="p-1 rounded hover:bg-zinc-800 transition-colors"
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title="Copy output"
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>
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<Copy class="w-3 h-3 text-zinc-500 hover:text-zinc-300" />
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</button>
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<!-- Reconnect -->
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{#if !connected}
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<button
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onclick={reconnect}
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class="flex items-center gap-1 px-1.5 py-0.5 rounded text-xs bg-amber-500/20 ring-1 ring-amber-500/50 text-amber-400 hover:bg-amber-500/30 transition-colors"
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title="Reconnect"
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>
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<RefreshCw class="w-3 h-3" />
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</button>
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{/if}
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</div>
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</div>
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<!-- Terminal content -->
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<div class="flex-1 overflow-hidden p-1">
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<div bind:this={terminalRef} class="h-full w-full"></div>
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</div>
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</div>
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<style>
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:global(.xterm) {
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height: 100%;
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padding: 4px;
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}
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:global(.xterm-viewport) {
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overflow-y: auto !important;
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}
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</style>
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