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client.ts
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client.ts
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/* eslint-disable no-restricted-syntax */
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*
* This file is the entry point for browserify.
*/
/// <reference path="../typings/xterm.d.ts"/>
// Use tsc version (yarn watch)
import { Terminal } from '../out/browser/public/Terminal';
import { AttachAddon } from '../addons/xterm-addon-attach/out/AttachAddon';
import { CanvasAddon } from '../addons/xterm-addon-canvas/out/CanvasAddon';
import { FitAddon } from '../addons/xterm-addon-fit/out/FitAddon';
import { SearchAddon, ISearchOptions } from '../addons/xterm-addon-search/out/SearchAddon';
import { SerializeAddon } from '../addons/xterm-addon-serialize/out/SerializeAddon';
import { WebLinksAddon } from '../addons/xterm-addon-web-links/out/WebLinksAddon';
import { WebglAddon } from '../addons/xterm-addon-webgl/out/WebglAddon';
import { Unicode11Addon } from '../addons/xterm-addon-unicode11/out/Unicode11Addon';
import { LigaturesAddon } from '../addons/xterm-addon-ligatures/out/LigaturesAddon';
// Use webpacked version (yarn package)
// import { Terminal } from '../lib/xterm';
// import { AttachAddon } from 'xterm-addon-attach';
// import { FitAddon } from 'xterm-addon-fit';
// import { SearchAddon, ISearchOptions } from 'xterm-addon-search';
// import { SerializeAddon } from 'xterm-addon-serialize';
// import { WebLinksAddon } from 'xterm-addon-web-links';
// import { WebglAddon } from 'xterm-addon-webgl';
// import { Unicode11Addon } from 'xterm-addon-unicode11';
// import { LigaturesAddon } from 'xterm-addon-ligatures';
// Pulling in the module's types relies on the <reference> above, it's looks a
// little weird here as we're importing "this" module
import { Terminal as TerminalType, ITerminalOptions } from 'xterm';
export interface IWindowWithTerminal extends Window {
term: TerminalType;
Terminal?: typeof TerminalType; // eslint-disable-line @typescript-eslint/naming-convention
AttachAddon?: typeof AttachAddon; // eslint-disable-line @typescript-eslint/naming-convention
FitAddon?: typeof FitAddon; // eslint-disable-line @typescript-eslint/naming-convention
SearchAddon?: typeof SearchAddon; // eslint-disable-line @typescript-eslint/naming-convention
SerializeAddon?: typeof SerializeAddon; // eslint-disable-line @typescript-eslint/naming-convention
WebLinksAddon?: typeof WebLinksAddon; // eslint-disable-line @typescript-eslint/naming-convention
WebglAddon?: typeof WebglAddon; // eslint-disable-line @typescript-eslint/naming-convention
Unicode11Addon?: typeof Unicode11Addon; // eslint-disable-line @typescript-eslint/naming-convention
LigaturesAddon?: typeof LigaturesAddon; // eslint-disable-line @typescript-eslint/naming-convention
}
declare let window: IWindowWithTerminal;
let term;
let protocol;
let socketURL;
let socket;
let pid;
type AddonType = 'attach' | 'canvas' | 'fit' | 'search' | 'serialize' | 'unicode11' | 'web-links' | 'webgl' | 'ligatures';
interface IDemoAddon<T extends AddonType> {
name: T;
canChange: boolean;
ctor: (
T extends 'attach' ? typeof AttachAddon :
T extends 'canvas' ? typeof CanvasAddon :
T extends 'fit' ? typeof FitAddon :
T extends 'search' ? typeof SearchAddon :
T extends 'serialize' ? typeof SerializeAddon :
T extends 'web-links' ? typeof WebLinksAddon :
T extends 'unicode11' ? typeof Unicode11Addon :
T extends 'ligatures' ? typeof LigaturesAddon :
typeof WebglAddon
);
instance?: (
T extends 'attach' ? AttachAddon :
T extends 'canvas' ? CanvasAddon :
T extends 'fit' ? FitAddon :
T extends 'search' ? SearchAddon :
T extends 'serialize' ? SerializeAddon :
T extends 'web-links' ? WebLinksAddon :
T extends 'webgl' ? WebglAddon :
T extends 'unicode11' ? typeof Unicode11Addon :
T extends 'ligatures' ? typeof LigaturesAddon :
never
);
}
const addons: { [T in AddonType]: IDemoAddon<T> } = {
attach: { name: 'attach', ctor: AttachAddon, canChange: false },
canvas: { name: 'canvas', ctor: CanvasAddon, canChange: true },
fit: { name: 'fit', ctor: FitAddon, canChange: false },
search: { name: 'search', ctor: SearchAddon, canChange: true },
serialize: { name: 'serialize', ctor: SerializeAddon, canChange: true },
'web-links': { name: 'web-links', ctor: WebLinksAddon, canChange: true },
webgl: { name: 'webgl', ctor: WebglAddon, canChange: true },
unicode11: { name: 'unicode11', ctor: Unicode11Addon, canChange: true },
ligatures: { name: 'ligatures', ctor: LigaturesAddon, canChange: true }
};
let terminalContainer = document.getElementById('terminal-container');
const actionElements = {
find: document.querySelector('#find') as HTMLInputElement,
findNext: document.querySelector('#find-next') as HTMLInputElement,
findPrevious: document.querySelector('#find-previous') as HTMLInputElement,
findResults: document.querySelector('#find-results')
};
const paddingElement = document.getElementById('padding') as HTMLInputElement;
const xtermjsTheme = {
foreground: '#F8F8F8',
background: '#2D2E2C',
selectionBackground: '#5DA5D533',
black: '#1E1E1D',
brightBlack: '#262625',
red: '#CE5C5C',
brightRed: '#FF7272',
green: '#5BCC5B',
brightGreen: '#72FF72',
yellow: '#CCCC5B',
brightYellow: '#FFFF72',
blue: '#5D5DD3',
brightBlue: '#7279FF',
magenta: '#BC5ED1',
brightMagenta: '#E572FF',
cyan: '#5DA5D5',
brightCyan: '#72F0FF',
white: '#F8F8F8',
brightWhite: '#FFFFFF'
};
function setPadding(): void {
term.element.style.padding = parseInt(paddingElement.value, 10).toString() + 'px';
addons.fit.instance.fit();
}
function getSearchOptions(e: KeyboardEvent): ISearchOptions {
return {
regex: (document.getElementById('regex') as HTMLInputElement).checked,
wholeWord: (document.getElementById('whole-word') as HTMLInputElement).checked,
caseSensitive: (document.getElementById('case-sensitive') as HTMLInputElement).checked,
incremental: e.key !== `Enter`,
decorations: (document.getElementById('highlight-all-matches') as HTMLInputElement).checked ? {
matchBackground: '#232422',
matchBorder: '#555753',
matchOverviewRuler: '#555753',
activeMatchBackground: '#ef2929',
activeMatchBorder: '#ffffff',
activeMatchColorOverviewRuler: '#ef2929'
} : undefined
};
}
const disposeRecreateButtonHandler: () => void = () => {
// If the terminal exists dispose of it, otherwise recreate it
if (term) {
term.dispose();
term = null;
window.term = null;
socket = null;
addons.attach.instance = undefined;
addons.canvas.instance = undefined;
addons.fit.instance = undefined;
addons.search.instance = undefined;
addons.serialize.instance = undefined;
addons.unicode11.instance = undefined;
addons.ligatures.instance = undefined;
addons['web-links'].instance = undefined;
addons.webgl.instance = undefined;
document.getElementById('dispose').innerHTML = 'Recreate Terminal';
} else {
createTerminal();
document.getElementById('dispose').innerHTML = 'Dispose terminal';
}
};
const createNewWindowButtonHandler: () => void = () => {
if (term) {
disposeRecreateButtonHandler();
}
const win = window.open();
terminalContainer = win.document.createElement('div');
terminalContainer.id = 'terminal-container';
win.document.body.appendChild(terminalContainer);
// Stylesheets are needed to get the terminal in the popout window to render
// correctly. We also need to wait for them to load before creating the
// terminal, otherwise we will not compute the correct metrics when rendering.
let pendingStylesheets = 0;
for (const linkNode of document.querySelectorAll('head link[rel=stylesheet]')) {
const newLink = document.createElement('link');
newLink.rel = 'stylesheet';
newLink.href = (linkNode as HTMLLinkElement).href;
win.document.head.appendChild(newLink);
pendingStylesheets++;
newLink.addEventListener('load', () => {
pendingStylesheets--;
if (pendingStylesheets === 0) {
createTerminal();
}
});
}
};
if (document.location.pathname === '/test') {
window.Terminal = Terminal;
window.AttachAddon = AttachAddon;
window.FitAddon = FitAddon;
window.SearchAddon = SearchAddon;
window.SerializeAddon = SerializeAddon;
window.Unicode11Addon = Unicode11Addon;
window.LigaturesAddon = LigaturesAddon;
window.WebLinksAddon = WebLinksAddon;
window.WebglAddon = WebglAddon;
} else {
createTerminal();
document.getElementById('dispose').addEventListener('click', disposeRecreateButtonHandler);
document.getElementById('create-new-window').addEventListener('click', createNewWindowButtonHandler);
document.getElementById('serialize').addEventListener('click', serializeButtonHandler);
document.getElementById('htmlserialize').addEventListener('click', htmlSerializeButtonHandler);
document.getElementById('custom-glyph').addEventListener('click', writeCustomGlyphHandler);
document.getElementById('load-test').addEventListener('click', loadTest);
document.getElementById('print-cjk').addEventListener('click', addCjk);
document.getElementById('print-cjk-sgr').addEventListener('click', addCjkRandomSgr);
document.getElementById('powerline-symbol-test').addEventListener('click', powerlineSymbolTest);
document.getElementById('underline-test').addEventListener('click', underlineTest);
document.getElementById('ansi-colors').addEventListener('click', ansiColorsTest);
document.getElementById('osc-hyperlinks').addEventListener('click', addAnsiHyperlink);
document.getElementById('sgr-test').addEventListener('click', sgrTest);
document.getElementById('add-decoration').addEventListener('click', addDecoration);
document.getElementById('add-overview-ruler').addEventListener('click', addOverviewRuler);
}
function createTerminal(): void {
// Clean terminal
while (terminalContainer.children.length) {
terminalContainer.removeChild(terminalContainer.children[0]);
}
const isWindows = ['Windows', 'Win16', 'Win32', 'WinCE'].indexOf(navigator.platform) >= 0;
term = new Terminal({
allowProposedApi: true,
windowsMode: isWindows,
fontFamily: '"Fira Code", courier-new, courier, monospace, "Powerline Extra Symbols"',
theme: xtermjsTheme
} as ITerminalOptions);
// Load addons
const typedTerm = term as TerminalType;
addons.search.instance = new SearchAddon();
addons.serialize.instance = new SerializeAddon();
addons.fit.instance = new FitAddon();
addons.unicode11.instance = new Unicode11Addon();
addons.webgl.instance = new WebglAddon();
addons['web-links'].instance = new WebLinksAddon();
typedTerm.loadAddon(addons.fit.instance);
typedTerm.loadAddon(addons.search.instance);
typedTerm.loadAddon(addons.serialize.instance);
typedTerm.loadAddon(addons.unicode11.instance);
typedTerm.loadAddon(addons['web-links'].instance);
window.term = term; // Expose `term` to window for debugging purposes
term.onResize((size: { cols: number, rows: number }) => {
if (!pid) {
return;
}
const cols = size.cols;
const rows = size.rows;
const url = '/terminals/' + pid + '/size?cols=' + cols + '&rows=' + rows;
fetch(url, { method: 'POST' });
});
protocol = (location.protocol === 'https:') ? 'wss://' : 'ws://';
socketURL = protocol + location.hostname + ((location.port) ? (':' + location.port) : '') + '/terminals/';
addons.fit.instance!.fit();
typedTerm.loadAddon(addons.webgl.instance);
setTimeout(() => {
if (addons.webgl.instance !== undefined) {
setTextureAtlas(addons.webgl.instance.textureAtlas);
addons.webgl.instance.onChangeTextureAtlas(e => setTextureAtlas(e));
addons.webgl.instance.onAddTextureAtlasCanvas(e => appendTextureAtlas(e));
addons.webgl.instance.onRemoveTextureAtlasCanvas(e => removeTextureAtlas(e));
}
}, 0);
try { // try-catch to allow the demo to load if webgl is not supported
term.open(terminalContainer);
}
catch {
addons.webgl.instance = undefined;
}
term.focus();
addDomListener(paddingElement, 'change', setPadding);
addDomListener(actionElements.findNext, 'keyup', (e) => {
addons.search.instance.findNext(actionElements.findNext.value, getSearchOptions(e));
});
addDomListener(actionElements.findPrevious, 'keyup', (e) => {
addons.search.instance.findPrevious(actionElements.findPrevious.value, getSearchOptions(e));
});
addDomListener(actionElements.findNext, 'blur', (e) => {
addons.search.instance.clearActiveDecoration();
});
addDomListener(actionElements.findPrevious, 'blur', (e) => {
addons.search.instance.clearActiveDecoration();
});
// fit is called within a setTimeout, cols and rows need this.
setTimeout(() => {
initOptions(term);
// TODO: Clean this up, opt-cols/rows doesn't exist anymore
(document.getElementById(`opt-cols`) as HTMLInputElement).value = term.cols;
(document.getElementById(`opt-rows`) as HTMLInputElement).value = term.rows;
paddingElement.value = '0';
// Set terminal size again to set the specific dimensions on the demo
updateTerminalSize();
fetch('/terminals?cols=' + term.cols + '&rows=' + term.rows, { method: 'POST' }).then((res) => {
res.text().then((processId) => {
pid = processId;
socketURL += processId;
socket = new WebSocket(socketURL);
socket.onopen = runRealTerminal;
socket.onclose = runFakeTerminal;
socket.onerror = runFakeTerminal;
});
});
}, 0);
}
function runRealTerminal(): void {
addons.attach.instance = new AttachAddon(socket);
term.loadAddon(addons.attach.instance);
term._initialized = true;
initAddons(term);
}
function runFakeTerminal(): void {
if (term._initialized) {
return;
}
term._initialized = true;
initAddons(term);
term.prompt = () => {
term.write('\r\n$ ');
};
term.writeln('Welcome to xterm.js');
term.writeln('This is a local terminal emulation, without a real terminal in the back-end.');
term.writeln('Type some keys and commands to play around.');
term.writeln('');
term.prompt();
term.onKey((e: { key: string, domEvent: KeyboardEvent }) => {
const ev = e.domEvent;
const printable = !ev.altKey && !ev.ctrlKey && !ev.metaKey;
if (ev.keyCode === 13) {
term.prompt();
} else if (ev.keyCode === 8) {
// Do not delete the prompt
if (term._core.buffer.x > 2) {
term.write('\b \b');
}
} else if (printable) {
term.write(e.key);
}
});
}
function initOptions(term: TerminalType): void {
const blacklistedOptions = [
// Internal only options
'cancelEvents',
'convertEol',
'termName',
// Complex option
'theme',
'windowOptions'
];
const stringOptions = {
cursorStyle: ['block', 'underline', 'bar'],
fastScrollModifier: ['none', 'alt', 'ctrl', 'shift'],
fontFamily: null,
fontWeight: ['normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900'],
fontWeightBold: ['normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900'],
logLevel: ['debug', 'info', 'warn', 'error', 'off'],
theme: ['default', 'xtermjs', 'sapphire', 'light'],
wordSeparator: null
};
const options = Object.getOwnPropertyNames(term.options);
const booleanOptions = [];
const numberOptions = [
'overviewRulerWidth'
];
options.filter(o => blacklistedOptions.indexOf(o) === -1).forEach(o => {
switch (typeof term.options[o]) {
case 'boolean':
booleanOptions.push(o);
break;
case 'number':
numberOptions.push(o);
break;
default:
if (Object.keys(stringOptions).indexOf(o) === -1 && numberOptions.indexOf(o) === -1 && booleanOptions.indexOf(o) === -1) {
console.warn(`Unrecognized option: "${o}"`);
}
}
});
let html = '';
html += '<div class="option-group">';
booleanOptions.forEach(o => {
html += `<div class="option"><label><input id="opt-${o}" type="checkbox" ${term.options[o] ? 'checked' : ''}/> ${o}</label></div>`;
});
html += '</div><div class="option-group">';
numberOptions.forEach(o => {
html += `<div class="option"><label>${o} <input id="opt-${o}" type="number" value="${term.options[o] ?? ''}" step="${o === 'lineHeight' || o === 'scrollSensitivity' ? '0.1' : '1'}"/></label></div>`;
});
html += '</div><div class="option-group">';
Object.keys(stringOptions).forEach(o => {
if (stringOptions[o]) {
const selectedOption = o === 'theme' ? 'xtermjs' : term.options[o];
html += `<div class="option"><label>${o} <select id="opt-${o}">${stringOptions[o].map(v => `<option ${v === selectedOption ? 'selected' : ''}>${v}</option>`).join('')}</select></label></div>`;
} else {
html += `<div class="option"><label>${o} <input id="opt-${o}" type="text" value="${term.options[o]}"/></label></div>`;
}
});
html += '</div>';
const container = document.getElementById('options-container');
container.innerHTML = html;
// Attach listeners
booleanOptions.forEach(o => {
const input = document.getElementById(`opt-${o}`) as HTMLInputElement;
addDomListener(input, 'change', () => {
console.log('change', o, input.checked);
term.options[o] = input.checked;
});
});
numberOptions.forEach(o => {
const input = document.getElementById(`opt-${o}`) as HTMLInputElement;
addDomListener(input, 'change', () => {
console.log('change', o, input.value);
if (o === 'rows') {
term.resize(term.cols, parseInt(input.value));
} else if (o === 'cols') {
term.resize(parseInt(input.value), term.rows);
} else if (o === 'lineHeight') {
term.options.lineHeight = parseFloat(input.value);
} else if (o === 'scrollSensitivity') {
term.options.scrollSensitivity = parseFloat(input.value);
} else if (o === 'scrollback') {
term.options.scrollback = parseInt(input.value);
setTimeout(() => updateTerminalSize(), 5);
} else {
term.options[o] = parseInt(input.value);
}
// Always update terminal size in case the option changes the dimensions
updateTerminalSize();
});
});
Object.keys(stringOptions).forEach(o => {
const input = document.getElementById(`opt-${o}`) as HTMLInputElement;
addDomListener(input, 'change', () => {
console.log('change', o, input.value);
let value: any = input.value;
if (o === 'theme') {
switch (input.value) {
case 'default':
value = undefined;
break;
case 'xtermjs':
// Custom theme to match style of xterm.js logo
value = xtermjsTheme;
case 'sapphire':
// Color source: https://github.com/Tyriar/vscode-theme-sapphire
value = {
background: '#1c2431',
foreground: '#cccccc',
selectionBackground: '#399ef440',
black: '#666666',
blue: '#399ef4',
brightBlack: '#666666',
brightBlue: '#399ef4',
brightCyan: '#21c5c7',
brightGreen: '#4eb071',
brightMagenta: '#b168df',
brightRed: '#da6771',
brightWhite: '#efefef',
brightYellow: '#fff099',
cyan: '#21c5c7',
green: '#4eb071',
magenta: '#b168df',
red: '#da6771',
white: '#efefef',
yellow: '#fff099'
};
break;
case 'light':
// Color source: https://github.com/microsoft/vscode/blob/main/extensions/theme-defaults/themes/light_plus.json
value = {
background: '#ffffff',
foreground: '#333333',
selectionBackground: '#add6ff',
black: '#000000',
blue: '#0451a5',
brightBlack: '#666666',
brightBlue: '#0451a5',
brightCyan: '#0598bc',
brightGreen: '#14ce14',
brightMagenta: '#bc05bc',
brightRed: '#cd3131',
brightWhite: '#a5a5a5',
brightYellow: '#b5ba00',
cyan: '#0598bc',
green: '#00bc00',
magenta: '#bc05bc',
red: '#cd3131',
white: '#555555',
yellow: '#949800'
};
break;
}
}
term.options[o] = value;
});
});
}
function initAddons(term: TerminalType): void {
const fragment = document.createDocumentFragment();
Object.keys(addons).forEach((name: AddonType) => {
const addon = addons[name];
const checkbox = document.createElement('input') as HTMLInputElement;
checkbox.type = 'checkbox';
checkbox.checked = !!addon.instance;
if (!addon.canChange) {
checkbox.disabled = true;
}
if (name === 'unicode11' && checkbox.checked) {
term.unicode.activeVersion = '11';
}
if (name === 'search' && checkbox.checked) {
addon.instance.onDidChangeResults(e => updateFindResults(e));
}
addDomListener(checkbox, 'change', () => {
if (checkbox.checked) {
addon.instance = new addon.ctor();
try {
term.loadAddon(addon.instance);
if (name === 'webgl') {
setTimeout(() => {
setTextureAtlas(addons.webgl.instance.textureAtlas);
addons.webgl.instance.onChangeTextureAtlas(e => setTextureAtlas(e));
addons.webgl.instance.onAddTextureAtlasCanvas(e => appendTextureAtlas(e));
}, 0);
} else if (name === 'canvas') {
setTimeout(() => {
setTextureAtlas(addons.canvas.instance.textureAtlas);
addons.canvas.instance.onChangeTextureAtlas(e => setTextureAtlas(e));
addons.canvas.instance.onAddTextureAtlasCanvas(e => appendTextureAtlas(e));
}, 0);
} else if (name === 'unicode11') {
term.unicode.activeVersion = '11';
} else if (name === 'search') {
addon.instance.onDidChangeResults(e => updateFindResults(e));
}
}
catch {
addon.instance = undefined;
checkbox.checked = false;
checkbox.disabled = true;
}
} else {
if (name === 'webgl') {
addons.webgl.instance.textureAtlas.remove();
} else if (name === 'canvas') {
addons.canvas.instance.textureAtlas.remove();
} else if (name === 'unicode11') {
term.unicode.activeVersion = '6';
}
addon.instance!.dispose();
addon.instance = undefined;
}
});
const label = document.createElement('label');
label.classList.add('addon');
if (!addon.canChange) {
label.title = 'This addon is needed for the demo to operate';
}
label.appendChild(checkbox);
label.appendChild(document.createTextNode(name));
const wrapper = document.createElement('div');
wrapper.classList.add('addon');
wrapper.appendChild(label);
fragment.appendChild(wrapper);
});
const container = document.getElementById('addons-container');
container.innerHTML = '';
container.appendChild(fragment);
}
function updateFindResults(e: { resultIndex: number, resultCount: number } | undefined): void {
let content: string;
if (e === undefined) {
content = 'undefined';
} else {
content = `index: ${e.resultIndex}, count: ${e.resultCount}`;
}
actionElements.findResults.textContent = content;
}
function addDomListener(element: HTMLElement, type: string, handler: (...args: any[]) => any): void {
element.addEventListener(type, handler);
term._core.register({ dispose: () => element.removeEventListener(type, handler) });
}
function updateTerminalSize(): void {
const width = (term._core._renderService.dimensions.css.canvas.width + term._core.viewport.scrollBarWidth).toString() + 'px';
const height = (term._core._renderService.dimensions.css.canvas.height).toString() + 'px';
terminalContainer.style.width = width;
terminalContainer.style.height = height;
addons.fit.instance.fit();
}
function serializeButtonHandler(): void {
const output = addons.serialize.instance.serialize();
const outputString = JSON.stringify(output);
document.getElementById('serialize-output').innerText = outputString;
if ((document.getElementById('write-to-terminal') as HTMLInputElement).checked) {
term.reset();
term.write(output);
}
}
function htmlSerializeButtonHandler(): void {
const output = addons.serialize.instance.serializeAsHTML();
document.getElementById('htmlserialize-output').innerText = output;
// Deprecated, but the most supported for now.
function listener(e: any): void {
e.clipboardData.setData('text/html', output);
e.preventDefault();
}
document.addEventListener('copy', listener);
document.execCommand('copy');
document.removeEventListener('copy', listener);
document.getElementById('htmlserialize-output-result').innerText = 'Copied to clipboard';
}
function setTextureAtlas(e: HTMLCanvasElement): void {
styleAtlasPage(e);
document.querySelector('#texture-atlas').replaceChildren(e);
}
function appendTextureAtlas(e: HTMLCanvasElement): void {
styleAtlasPage(e);
document.querySelector('#texture-atlas').appendChild(e);
}
function removeTextureAtlas(e: HTMLCanvasElement): void {
e.remove();
}
function styleAtlasPage(e: HTMLCanvasElement): void {
e.style.width = `${e.width / window.devicePixelRatio}px`;
e.style.height = `${e.height / window.devicePixelRatio}px`;
}
function writeCustomGlyphHandler(): void {
term.write('\n\r');
term.write('\n\r');
term.write('Box styles: ┎┰┒┍┯┑╓╥╖╒╤╕ ┏┳┓┌┲┓┌┬┐┏┱┐\n\r');
term.write('┌─┬─┐ ┏━┳━┓ ╔═╦═╗ ┠╂┨┝┿┥╟╫╢╞╪╡ ┡╇┩├╊┫┢╈┪┣╉┤\n\r');
term.write('│ │ │ ┃ ┃ ┃ ║ ║ ║ ┖┸┚┕┷┙╙╨╜╘╧╛ └┴┘└┺┛┗┻┛┗┹┘\n\r');
term.write('├─┼─┤ ┣━╋━┫ ╠═╬═╣ ┏┱┐┌┲┓┌┬┐┌┬┐ ┏┳┓┌┮┓┌┬┐┏┭┐\n\r');
term.write('│ │ │ ┃ ┃ ┃ ║ ║ ║ ┡╃┤├╄┩├╆┪┢╅┤ ┞╀┦├┾┫┟╁┧┣┽┤\n\r');
term.write('└─┴─┘ ┗━┻━┛ ╚═╩═╝ └┴┘└┴┘└┺┛┗┹┘ └┴┘└┶┛┗┻┛┗┵┘\n\r');
term.write('\n\r');
term.write('Other:\n\r');
term.write('╭─╮ ╲ ╱ ╷╻╎╏┆┇┊┋ ╺╾╴ ╌╌╌ ┄┄┄ ┈┈┈\n\r');
term.write('│ │ ╳ ╽╿╎╏┆┇┊┋ ╶╼╸ ╍╍╍ ┅┅┅ ┉┉┉\n\r');
term.write('╰─╯ ╱ ╲ ╹╵╎╏┆┇┊┋\n\r');
term.write('\n\r');
term.write('All box drawing characters:\n\r');
term.write('─ ━ │ ┃ ┄ ┅ ┆ ┇ ┈ ┉ ┊ ┋ ┌ ┍ ┎ ┏\n\r');
term.write('┐ ┑ ┒ ┓ └ ┕ ┖ ┗ ┘ ┙ ┚ ┛ ├ ┝ ┞ ┟\n\r');
term.write('┠ ┡ ┢ ┣ ┤ ┥ ┦ ┧ ┨ ┩ ┪ ┫ ┬ ┭ ┮ ┯\n\r');
term.write('┰ ┱ ┲ ┳ ┴ ┵ ┶ ┷ ┸ ┹ ┺ ┻ ┼ ┽ ┾ ┿\n\r');
term.write('╀ ╁ ╂ ╃ ╄ ╅ ╆ ╇ ╈ ╉ ╊ ╋ ╌ ╍ ╎ ╏\n\r');
term.write('═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟\n\r');
term.write('╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬ ╭ ╮ ╯\n\r');
term.write('╰ ╱ ╲ ╳ ╴ ╵ ╶ ╷ ╸ ╹ ╺ ╻ ╼ ╽ ╾ ╿\n\r');
term.write('Box drawing alignment tests:\x1b[31m █\n\r');
term.write(' ▉\n\r');
term.write(' ╔══╦══╗ ┌──┬──┐ ╭──┬──╮ ╭──┬──╮ ┏━━┳━━┓ ┎┒┏┑ ╷ ╻ ┏┯┓ ┌┰┐ ▊ ╱╲╱╲╳╳╳\n\r');
term.write(' ║┌─╨─┐║ │╔═╧═╗│ │╒═╪═╕│ │╓─╁─╖│ ┃┌─╂─┐┃ ┗╃╄┙ ╶┼╴╺╋╸┠┼┨ ┝╋┥ ▋ ╲╱╲╱╳╳╳\n\r');
term.write(' ║│╲ ╱│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╿ │┃ ┍╅╆┓ ╵ ╹ ┗┷┛ └┸┘ ▌ ╱╲╱╲╳╳╳\n\r');
term.write(' ╠╡ ╳ ╞╣ ├╢ ╟┤ ├┼─┼─┼┤ ├╫─╂─╫┤ ┣┿╾┼╼┿┫ ┕┛┖┚ ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳\n\r');
term.write(' ║│╱ ╲│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╽ │┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▎\n\r');
term.write(' ║└─╥─┘║ │╚═╤═╝│ │╘═╪═╛│ │╙─╀─╜│ ┃└─╂─┘┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▏\n\r');
term.write(' ╚══╩══╝ └──┴──┘ ╰──┴──╯ ╰──┴──╯ ┗━━┻━━┛ └╌╌┘ ╎ ┗╍╍┛ ┋ ▁▂▃▄▅▆▇█\n\r');
term.write('Box drawing alignment tests:\x1b[32m █\n\r');
term.write(' ▉\n\r');
term.write(' ╔══╦══╗ ┌──┬──┐ ╭──┬──╮ ╭──┬──╮ ┏━━┳━━┓ ┎┒┏┑ ╷ ╻ ┏┯┓ ┌┰┐ ▊ ╱╲╱╲╳╳╳\n\r');
term.write(' ║┌─╨─┐║ │╔═╧═╗│ │╒═╪═╕│ │╓─╁─╖│ ┃┌─╂─┐┃ ┗╃╄┙ ╶┼╴╺╋╸┠┼┨ ┝╋┥ ▋ ╲╱╲╱╳╳╳\n\r');
term.write(' ║│╲ ╱│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╿ │┃ ┍╅╆┓ ╵ ╹ ┗┷┛ └┸┘ ▌ ╱╲╱╲╳╳╳\n\r');
term.write(' ╠╡ ╳ ╞╣ ├╢ ╟┤ ├┼─┼─┼┤ ├╫─╂─╫┤ ┣┿╾┼╼┿┫ ┕┛┖┚ ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳\n\r');
term.write(' ║│╱ ╲│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╽ │┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▎\n\r');
term.write(' ║└─╥─┘║ │╚═╤═╝│ │╘═╪═╛│ │╙─╀─╜│ ┃└─╂─┘┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▏\n\r');
term.write(' ╚══╩══╝ └──┴──┘ ╰──┴──╯ ╰──┴──╯ ┗━━┻━━┛ └╌╌┘ ╎ ┗╍╍┛ ┋ ▁▂▃▄▅▆▇█\n\r');
window.scrollTo(0, 0);
}
function loadTest(): void {
const rendererName = addons.webgl.instance ? 'webgl' : !!addons.canvas.instance ? 'canvas' : 'dom';
const testData = [];
let byteCount = 0;
for (let i = 0; i < 50; i++) {
const count = 1 + Math.floor(Math.random() * 79);
byteCount += count + 2;
const data = new Uint8Array(count + 2);
data[0] = 0x0A; // \n
for (let i = 1; i < count + 1; i++) {
data[i] = 0x61 + Math.floor(Math.random() * (0x7A - 0x61));
}
// End each line with \r so the cursor remains constant, this is what ls/tree do and improves
// performance significantly due to the cursor DOM element not needing to change
data[data.length - 1] = 0x0D; // \r
testData.push(data);
}
const start = performance.now();
for (let i = 0; i < 1024; i++) {
for (const d of testData) {
term.write(d);
}
}
// Wait for all data to be parsed before evaluating time
term.write('', () => {
const time = Math.round(performance.now() - start);
const mbs = ((byteCount / 1024) * (1 / (time / 1000))).toFixed(2);
term.write(`\n\r\nWrote ${byteCount}kB in ${time}ms (${mbs}MB/s) using the (${rendererName} renderer)`);
// Send ^C to get a new prompt
term._core._onData.fire('\x03');
});
}
function powerlineSymbolTest(): void {
function s(char: string): string {
return `${char} \x1b[7m${char}\x1b[0m `;
}
term.write('\n\n\r');
term.writeln('Standard powerline symbols:');
term.writeln(' 0 1 2 3 4 5 6 7 8 9 A B C D E F');
term.writeln(`0xA_ ${s('\ue0a0')}${s('\ue0a1')}${s('\ue0a2')}`);
term.writeln(`0xB_ ${s('\ue0b0')}${s('\ue0b1')}${s('\ue0b2')}${s('\ue0b3')}`);
term.writeln('');
term.writeln(
`\x1b[7m` +
` inverse \ue0b1 \x1b[0;40m\ue0b0` +
` 0 \ue0b1 \x1b[30;41m\ue0b0\x1b[39m` +
` 1 \ue0b1 \x1b[31;42m\ue0b0\x1b[39m` +
` 2 \ue0b1 \x1b[32;43m\ue0b0\x1b[39m` +
` 3 \ue0b1 \x1b[33;44m\ue0b0\x1b[39m` +
` 4 \ue0b1 \x1b[34;45m\ue0b0\x1b[39m` +
` 5 \ue0b1 \x1b[35;46m\ue0b0\x1b[39m` +
` 6 \ue0b1 \x1b[36;47m\ue0b0\x1b[30m` +
` 7 \ue0b1 \x1b[37;49m\ue0b0\x1b[0m`
);
term.writeln('');
term.writeln(
`\x1b[7m` +
` inverse \ue0b3 \x1b[0;7;40m\ue0b2\x1b[27m` +
` 0 \ue0b3 \x1b[7;30;41m\ue0b2\x1b[27;39m` +
` 1 \ue0b3 \x1b[7;31;42m\ue0b2\x1b[27;39m` +
` 2 \ue0b3 \x1b[7;32;43m\ue0b2\x1b[27;39m` +
` 3 \ue0b3 \x1b[7;33;44m\ue0b2\x1b[27;39m` +
` 4 \ue0b3 \x1b[7;34;45m\ue0b2\x1b[27;39m` +
` 5 \ue0b3 \x1b[7;35;46m\ue0b2\x1b[27;39m` +
` 6 \ue0b3 \x1b[7;36;47m\ue0b2\x1b[27;30m` +
` 7 \ue0b3 \x1b[7;37;49m\ue0b2\x1b[0m`
);
term.writeln('');
term.writeln(
`\x1b[7m` +
` inverse \ue0b5 \x1b[0;40m\ue0b4` +
` 0 \ue0b5 \x1b[30;41m\ue0b4\x1b[39m` +
` 1 \ue0b5 \x1b[31;42m\ue0b4\x1b[39m` +
` 2 \ue0b5 \x1b[32;43m\ue0b4\x1b[39m` +
` 3 \ue0b5 \x1b[33;44m\ue0b4\x1b[39m` +
` 4 \ue0b5 \x1b[34;45m\ue0b4\x1b[39m` +
` 5 \ue0b5 \x1b[35;46m\ue0b4\x1b[39m` +
` 6 \ue0b5 \x1b[36;47m\ue0b4\x1b[30m` +
` 7 \ue0b5 \x1b[37;49m\ue0b4\x1b[0m`
);
term.writeln('');
term.writeln(
`\x1b[7m` +
` inverse \ue0b7 \x1b[0;7;40m\ue0b6\x1b[27m` +
` 0 \ue0b7 \x1b[7;30;41m\ue0b6\x1b[27;39m` +
` 1 \ue0b7 \x1b[7;31;42m\ue0b6\x1b[27;39m` +
` 2 \ue0b7 \x1b[7;32;43m\ue0b6\x1b[27;39m` +
` 3 \ue0b7 \x1b[7;33;44m\ue0b6\x1b[27;39m` +
` 4 \ue0b7 \x1b[7;34;45m\ue0b6\x1b[27;39m` +
` 5 \ue0b7 \x1b[7;35;46m\ue0b6\x1b[27;39m` +
` 6 \ue0b7 \x1b[7;36;47m\ue0b6\x1b[27;30m` +
` 7 \ue0b7 \x1b[7;37;49m\ue0b6\x1b[0m`
);
term.writeln('');
term.writeln('Powerline extra symbols:');
term.writeln(' 0 1 2 3 4 5 6 7 8 9 A B C D E F');
term.writeln(`0xA_ ${s('\ue0a3')}`);
term.writeln(`0xB_ ${s('\ue0b4')}${s('\ue0b5')}${s('\ue0b6')}${s('\ue0b7')}${s('\ue0b8')}${s('\ue0b9')}${s('\ue0ba')}${s('\ue0bb')}${s('\ue0bc')}${s('\ue0bd')}${s('\ue0be')}${s('\ue0bf')}`);
term.writeln(`0xC_ ${s('\ue0c0')}${s('\ue0c1')}${s('\ue0c2')}${s('\ue0c3')}${s('\ue0c4')}${s('\ue0c5')}${s('\ue0c6')}${s('\ue0c7')}${s('\ue0c8')}${s('\ue0c9')}${s('\ue0ca')}${s('\ue0cb')}${s('\ue0cc')}${s('\ue0cd')}${s('\ue0be')}${s('\ue0bf')}`);
term.writeln(`0xD_ ${s('\ue0d0')}${s('\ue0d1')}${s('\ue0d2')} ${s('\ue0d4')}`);
term.writeln('');
term.writeln('Sample of nerd fonts icons:');
term.writeln(' nf-linux-apple (\\uF302) \uf302');
term.writeln('nf-mdi-github_face (\\uFbd9) \ufbd9');
}
function underlineTest(): void {
function u(style: number): string {
return `\x1b[4:${style}m`;
}
function c(color: string): string {
return `\x1b[58:${color}m`;
}
term.write('\n\n\r');
term.writeln('Underline styles:');
term.writeln('');
function showSequence(id: number, name: string): string {
let alphabet = '';
for (let i = 97; i < 123; i++) {
alphabet += String.fromCharCode(i);
}
let numbers = '';
for (let i = 0; i < 10; i++) {
numbers += i.toString();
}
return `${u(id)}4:${id}m - ${name}\x1b[4:0m`.padEnd(33, ' ') + `${u(id)}${alphabet} ${numbers} 汉语 한국어 👽\x1b[4:0m`;
}
term.writeln(showSequence(0, 'No underline'));
term.writeln(showSequence(1, 'Straight'));
term.writeln(showSequence(2, 'Double'));
term.writeln(showSequence(3, 'Curly'));
term.writeln(showSequence(4, 'Dotted'));
term.writeln(showSequence(5, 'Dashed'));
term.writeln('');
term.writeln(`Underline colors (256 color mode):`);
term.writeln('');
for (let i = 0; i < 256; i++) {
term.write((i !== 0 ? '\x1b[0m, ' : '') + u(1 + i % 5) + c('5:' + i) + i);
}
term.writeln(`\x1b[0m\n\n\rUnderline colors (true color mode):`);
term.writeln('');
for (let i = 0; i < 80; i++) {
const v = Math.round(i / 79 * 255);
term.write(u(1) + c(`2:0:${v}:${v}:${v}`) + (i < 4 ? 'grey'[i] : ' '));
}
term.write('\n\r');
for (let i = 0; i < 80; i++) {
const v = Math.round(i / 79 * 255);
term.write(u(1) + c(`2:0:${v}:${0}:${0}`) + (i < 3 ? 'red'[i] : ' '));
}
term.write('\n\r');
for (let i = 0; i < 80; i++) {
const v = Math.round(i / 79 * 255);
term.write(u(1) + c(`2:0:${0}:${v}:${0}`) + (i < 5 ? 'green'[i] : ' '));
}
term.write('\n\r');
for (let i = 0; i < 80; i++) {
const v = Math.round(i / 79 * 255);
term.write(u(1) + c(`2:0:${0}:${0}:${v}`) + (i < 4 ? 'blue'[i] : ' '));
}
term.write('\x1b[0m\n\r');
}
function ansiColorsTest(): void {
term.writeln(`\x1b[0m\n\n\rStandard colors: Bright colors:`);
for (let i = 0; i < 16; i++) {
term.write(`\x1b[48;5;${i}m ${i.toString().padEnd(2, ' ').padStart(3, ' ')} \x1b[0m`);
}
term.writeln(`\x1b[0m\n\n\rColors 17-231 from 256 palette:`);
for (let i = 0; i < 6; i++) {
const startId = 16 + i * 36;
const endId = 16 + (i + 1) * 36 - 1;
term.write(`${startId.toString().padStart(3, ' ')}-${endId.toString().padStart(3, ' ')} `);
for (let j = 0; j < 36; j++) {
const id = 16 + i * 36 + j;
term.write(`\x1b[48;5;${id}m${(id % 10).toString().padStart(2, ' ')}\x1b[0m`);
}
term.write(`\r\n`);
}
term.writeln(`\x1b[0m\n\rGreyscale from 256 palette:`);
term.write('232-255 ');
for (let i = 232; i < 256; i++) {
term.write(`\x1b[48;5;${i}m ${(i % 10)} \x1b[0m`);
}
}
function writeTestString(): string {
let alphabet = '';
for (let i = 97; i < 123; i++) {
alphabet += String.fromCharCode(i);
}
let numbers = '';
for (let i = 0; i < 10; i++) {
numbers += i.toString();
}
return `${alphabet} ${numbers} 汉语 한국어 👽`;
}
const testString = writeTestString();
function sgrTest(): void {
term.write('\n\n\r');
term.writeln(`Character Attributes (SGR, Select Graphic Rendition)`);
const entries: { ps: number, name: string }[] = [
{ ps: 0, name: 'Normal' },
{ ps: 1, name: 'Bold' },
{ ps: 2, name: 'Faint/dim' },
{ ps: 3, name: 'Italicized' },
{ ps: 4, name: 'Underlined' },
{ ps: 5, name: 'Blink' },
{ ps: 7, name: 'Inverse' },
{ ps: 8, name: 'Invisible' },
{ ps: 9, name: 'Crossed-out characters' },
{ ps: 21, name: 'Doubly-underlined' },
{ ps: 22, name: 'Normal' },
{ ps: 23, name: 'Not italicized' },
{ ps: 24, name: 'Not underlined' },
{ ps: 25, name: 'Steady (not blink)' },
{ ps: 27, name: 'Positive (not inverse)' },
{ ps: 28, name: 'Visible (not hidden)' },
{ ps: 29, name: 'Not crossed-out' },
{ ps: 30, name: 'Foreground Black' },
{ ps: 31, name: 'Foreground Red' },
{ ps: 32, name: 'Foreground Green' },
{ ps: 33, name: 'Foreground Yellow' },
{ ps: 34, name: 'Foreground Blue' },
{ ps: 35, name: 'Foreground Magenta' },
{ ps: 36, name: 'Foreground Cyan' },
{ ps: 37, name: 'Foreground White' },
{ ps: 39, name: 'Foreground default' },
{ ps: 40, name: 'Background Black' },
{ ps: 41, name: 'Background Red' },
{ ps: 42, name: 'Background Green' },
{ ps: 43, name: 'Background Yellow' },
{ ps: 44, name: 'Background Blue' },
{ ps: 45, name: 'Background Magenta' },
{ ps: 46, name: 'Background Cyan' },
{ ps: 47, name: 'Background White' },
{ ps: 49, name: 'Background default' }
];
const maxNameLength = entries.reduce<number>((p, c) => Math.max(c.name.length, p), 0);
for (const e of entries) {
term.writeln(`\x1b[0m\x1b[${e.ps}m ${e.ps.toString().padEnd(2, ' ')} ${e.name.padEnd(maxNameLength, ' ')} - ${testString}\x1b[0m`);
}
}
function addAnsiHyperlink(): void {
term.write('\n\n\r');
term.writeln(`Regular link with no id:`);
term.writeln('\x1b]8;;https://github.com\x07GitHub\x1b]8;;\x07');
term.writeln('\x1b]8;;https://xtermjs.org\x07https://xtermjs.org\x1b]8;;\x07\x1b[C<- null cell');
term.writeln(`\nAdjacent links:`);
term.writeln('\x1b]8;;https://github.com\x07GitHub\x1b]8;;https://xtermjs.org\x07\x1b[32mxterm.js\x1b[0m\x1b]8;;\x07');
term.writeln(`\nShared ID link (underline should be shared):`);
term.writeln('╔════╗');
term.writeln('║\x1b]8;id=testid;https://github.com\x07GitH\x1b]8;;\x07║');
term.writeln('║\x1b]8;id=testid;https://github.com\x07ub\x1b]8;;\x07 ║');
term.writeln('╚════╝');
term.writeln(`\nWrapped link with no ID (not necessarily meant to share underline):`);
term.writeln('╔════╗');
term.writeln('║ ║');
term.writeln('║ ║');
term.writeln('╚════╝');
term.write('\x1b[3A\x1b[1C\x1b]8;;https://xtermjs.org\x07xter\x1b[B\x1b[4Dm.js\x1b]8;;\x07\x1b[2B\x1b[5D');
}
/**
* Prints the 20977 characters from the CJK Unified Ideographs unicode block.
*/
function addCjk(): void {
term.write('\n\n\r');
for (let i = 0x4E00; i < 0x9FCC; i++) {
term.write(String.fromCharCode(i));
}
}
/**
* Prints the 20977 characters from the CJK Unified Ideographs unicode block with randomized styles.
*/
function addCjkRandomSgr(): void {