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- resize check to int

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- modularize, tree-shake terminal, idempotency on navigations
This commit is contained in:
Luan Estradioto
2024-09-25 22:14:05 -03:00
parent 567bbe9d0b
commit 6bd8583eab
4 changed files with 251 additions and 227 deletions
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223
resources/views/livewire/project/shared/terminal.blade.php
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@@ -1,4 +1,4 @@
<div x-data="data()">
<div id="terminal-container" x-data="terminalData()">
{{-- <div x-show="!terminalActive" class="flex items-center justify-center w-full py-4 mx-auto h-[510px]">
<div class="p-1 w-full h-full rounded border dark:bg-coolgray-100 dark:border-coolgray-300">
<span class="font-mono text-sm text-gray-500" x-text="message"></span>
@@ -22,219 +22,14 @@
</g>
</svg></button>
</div>
@script
<script>
const MAX_PENDING_WRITES = 5;
let pendingWrites = 0;
let paused = false;
let socket;
let commandBuffer = '';
function keepAlive() {
if (socket && socket.readyState === WebSocket.OPEN) {
socket.send(JSON.stringify({
ping: true
}));
}
}
const keepAliveInterval = setInterval(keepAlive, 30000);
// Clear the interval when the component is destroyed
document.addEventListener('livewire:navigating', () => {
clearInterval(keepAliveInterval);
});
function initializeWebSocket() {
if (!socket || socket.readyState === WebSocket.CLOSED) {
const predefined = {
protocol: "{{ env('TERMINAL_PROTOCOL') }}",
host: "{{ env('TERMINAL_HOST') }}",
port: "{{ env('TERMINAL_PORT') }}"
}
const connectionString = {
protocol: window.location.protocol === 'https:' ? 'wss' : 'ws',
host: window.location.hostname,
port: ":6002",
path: '/terminal/ws'
}
if (!window.location.port) {
connectionString.port = ''
}
if (predefined.host) {
connectionString.host = predefined.host
}
if (predefined.port) {
connectionString.port = `:${predefined.port}`
}
if (predefined.protocol) {
connectionString.protocol = predefined.protocol
}
const url =
`${connectionString.protocol}://${connectionString.host}${connectionString.port}${connectionString.path}`
socket = new WebSocket(url);
socket.onmessage = handleSocketMessage;
socket.onerror = (e) => {
console.error('WebSocket error:', e);
};
socket.onclose = () => {
console.log('WebSocket connection closed');
};
}
}
function handleSocketMessage(event) {
$data.message = '(connection closed)';
// Initialize Terminal
if (event.data === 'pty-ready') {
term.open(document.getElementById('terminal'));
$data.terminalActive = true;
term.reset();
term.focus();
document.querySelector('.xterm-viewport').classList.add('scrollbar', 'rounded')
$data.resizeTerminal()
} else if (event.data === 'unprocessable') {
term.reset();
$data.terminalActive = false;
$data.message = '(sorry, something went wrong, please try again)';
} else {
pendingWrites++;
term.write(event.data, flowControlCallback);
}
}
function flowControlCallback() {
pendingWrites--;
if (pendingWrites > MAX_PENDING_WRITES && !paused) {
paused = true;
socket.send(JSON.stringify({
pause: true
}));
return;
}
if (pendingWrites <= MAX_PENDING_WRITES && paused) {
paused = false;
socket.send(JSON.stringify({
resume: true
}));
return;
}
}
term.onData((data) => {
socket.send(JSON.stringify({
message: data
}));
// Type CTRL + D or exit in the terminal
if (data === '\x04' || (data === '\r' && stripAnsiCommands(commandBuffer).trim().includes('exit'))) {
checkIfProcessIsRunningAndKillIt();
setTimeout(() => {
$data.terminalActive = false;
term.reset();
}, 500);
commandBuffer = '';
} else if (data === '\r') {
commandBuffer = '';
} else {
commandBuffer += data;
}
});
function stripAnsiCommands(input) {
return input.replace(/\x1b\[[0-9;]*[a-zA-Z]/g, '');
}
// Copy and paste
// Enables ctrl + c and ctrl + v
// defaults otherwise to ctrl + insert, shift + insert
term.attachCustomKeyEventHandler((arg) => {
if (arg.ctrlKey && arg.code === "KeyV" && arg.type === "keydown") {
navigator.clipboard.readText()
.then(text => {
socket.send(JSON.stringify({
message: text
}));
})
};
if (arg.ctrlKey && arg.code === "KeyC" && arg.type === "keydown") {
const selection = term.getSelection();
if (selection) {
navigator.clipboard.writeText(selection);
return false;
}
}
return true;
});
$wire.on('send-back-command', function(command) {
socket.send(JSON.stringify({
command: command
}));
});
window.addEventListener('beforeunload', function(e) {
checkIfProcessIsRunningAndKillIt();
});
function checkIfProcessIsRunningAndKillIt() {
socket.send(JSON.stringify({
checkActive: 'force'
}));
}
window.onresize = function() {
$data.resizeTerminal()
};
Alpine.data('data', () => ({
fullscreen: false,
terminalActive: false,
message: '(connection closed)',
init() {
this.$watch('terminalActive', (value) => {
this.$nextTick(() => {
if (value) {
$refs.terminalWrapper.style.display = 'block';
this.resizeTerminal();
} else {
$refs.terminalWrapper.style.display = 'none';
}
});
});
},
makeFullscreen() {
this.fullscreen = !this.fullscreen;
$nextTick(() => {
this.resizeTerminal()
})
},
resizeTerminal() {
if (!this.terminalActive) return;
fitAddon.fit();
const height = $refs.terminalWrapper.clientHeight;
const rows = height / term._core._renderService._charSizeService.height - 1;
var termWidth = term.cols;
var termHeight = parseInt(rows.toString(), 10);
term.resize(termWidth, termHeight);
socket.send(JSON.stringify({
resize: {
cols: termWidth,
rows: termHeight
}
}));
}
}));
initializeWebSocket();
</script>
<script>
// expose terminal config to the terminal.js file
window.terminalConfig = {
protocol: "{{ env('TERMINAL_PROTOCOL') }}",
host: "{{ env('TERMINAL_HOST') }}",
port: "{{ env('TERMINAL_PORT') }}"
}
</script>
@endscript
</div>