1729 lines
58 KiB
JavaScript
1729 lines
58 KiB
JavaScript
/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2019 The noVNC Authors
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* Licensed under MPL 2.0 (see LICENSE.txt)
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*
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* See README.md for usage and integration instructions.
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*/
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import * as Log from '../core/util/logging.js';
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import _, { l10n } from './localization.js';
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import { isTouchDevice, isSafari, hasScrollbarGutter, dragThreshold }
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from '../core/util/browser.js';
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import { setCapture, getPointerEvent } from '../core/util/events.js';
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import KeyTable from "../core/input/keysym.js";
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import keysyms from "../core/input/keysymdef.js";
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import Keyboard from "../core/input/keyboard.js";
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import RFB from "../core/rfb.js";
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import * as WebUtil from "./webutil.js";
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// String validation
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function isAlphaNumeric(str) { return (str.match(/^[A-Za-z0-9]+$/) != null); };
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function isSafeString(str) { return ((typeof str == 'string') && (str.indexOf('<') == -1) && (str.indexOf('>') == -1) && (str.indexOf('&') == -1) && (str.indexOf('"') == -1) && (str.indexOf('\'') == -1) && (str.indexOf('+') == -1) && (str.indexOf('(') == -1) && (str.indexOf(')') == -1) && (str.indexOf('#') == -1) && (str.indexOf('%') == -1)) };
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// Parse URL arguments, only keep safe values
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function parseUriArgs() {
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var href = window.document.location.href;
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if (href.endsWith('#')) { href = href.substring(0, href.length - 1); }
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var name, r = {}, parsedUri = href.split(/[\?&|\=]/);
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parsedUri.splice(0, 1);
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for (x in parsedUri) {
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switch (x % 2) {
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case 0: { name = decodeURIComponent(parsedUri[x]); break; }
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case 1: {
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r[name] = decodeURIComponent(parsedUri[x]);
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if (!isSafeString(r[name])) { delete r[name]; } else { var x = parseInt(r[name]); if (x == r[name]) { r[name] = x; } }
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break;
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} default: { break; }
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}
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}
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return r;
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}
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var urlargs = parseUriArgs();
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const UI = {
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connected: false,
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desktopName: "",
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statusTimeout: null,
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hideKeyboardTimeout: null,
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idleControlbarTimeout: null,
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closeControlbarTimeout: null,
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controlbarGrabbed: false,
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controlbarDrag: false,
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controlbarMouseDownClientY: 0,
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controlbarMouseDownOffsetY: 0,
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lastKeyboardinput: null,
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defaultKeyboardinputLen: 100,
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inhibitReconnect: true,
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reconnectCallback: null,
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reconnectPassword: null,
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prime() {
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return WebUtil.initSettings().then(() => {
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if (document.readyState === "interactive" || document.readyState === "complete") {
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return UI.start();
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}
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return new Promise((resolve, reject) => {
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document.addEventListener('DOMContentLoaded', () => UI.start().then(resolve).catch(reject));
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});
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});
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},
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// Render default UI and initialize settings menu
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start() {
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if (urlargs.name) { document.title = urlargs.name + " - noVNC"; }
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UI.initSettings();
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// Translate the DOM
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l10n.translateDOM();
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fetch('./package.json')
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.then((response) => {
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if (!response.ok) {
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throw Error("" + response.status + " " + response.statusText);
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}
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return response.json();
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})
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.then((packageInfo) => {
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Array.from(document.getElementsByClassName('noVNC_version')).forEach(el => el.innerText = packageInfo.version);
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})
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.catch((err) => {
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Log.Error("Couldn't fetch package.json: " + err);
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Array.from(document.getElementsByClassName('noVNC_version_wrapper'))
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.concat(Array.from(document.getElementsByClassName('noVNC_version_separator')))
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.forEach(el => el.style.display = 'none');
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});
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// Adapt the interface for touch screen devices
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if (isTouchDevice) {
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document.documentElement.classList.add("noVNC_touch");
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// Remove the address bar
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setTimeout(() => window.scrollTo(0, 1), 100);
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}
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// Restore control bar position
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if (WebUtil.readSetting('controlbar_pos') === 'right') {
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UI.toggleControlbarSide();
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}
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UI.initFullscreen();
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// Setup event handlers
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UI.addControlbarHandlers();
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UI.addTouchSpecificHandlers();
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UI.addExtraKeysHandlers();
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UI.addMachineHandlers();
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UI.addConnectionControlHandlers();
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UI.addClipboardHandlers();
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UI.addSettingsHandlers();
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document.getElementById("noVNC_status")
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.addEventListener('click', UI.hideStatus);
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// Bootstrap fallback input handler
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UI.keyboardinputReset();
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UI.openControlbar();
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UI.updateVisualState('init');
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document.documentElement.classList.remove("noVNC_loading");
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let autoconnect = WebUtil.getConfigVar('autoconnect', false);
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if (autoconnect === 'true' || autoconnect == '1') {
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autoconnect = true;
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UI.connect();
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} else {
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autoconnect = false;
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// Show the connect panel on first load unless autoconnecting
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UI.openConnectPanel();
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}
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return Promise.resolve(UI.rfb);
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},
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initFullscreen() {
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// Only show the button if fullscreen is properly supported
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// * Safari doesn't support alphanumerical input while in fullscreen
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if (!isSafari() &&
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(document.documentElement.requestFullscreen ||
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document.documentElement.mozRequestFullScreen ||
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document.documentElement.webkitRequestFullscreen ||
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document.body.msRequestFullscreen)) {
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document.getElementById('noVNC_fullscreen_button')
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.classList.remove("noVNC_hidden");
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UI.addFullscreenHandlers();
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}
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},
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initSettings() {
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// Logging selection dropdown
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const llevels = ['error', 'warn', 'info', 'debug'];
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for (let i = 0; i < llevels.length; i += 1) {
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UI.addOption(document.getElementById('noVNC_setting_logging'), llevels[i], llevels[i]);
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}
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// Settings with immediate effects
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UI.initSetting('logging', 'warn');
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UI.updateLogging();
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// if port == 80 (or 443) then it won't be present and should be
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// set manually
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let port = window.location.port;
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if (!port) {
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if (window.location.protocol.substring(0, 5) == 'https') {
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port = 443;
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} else if (window.location.protocol.substring(0, 4) == 'http') {
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port = 80;
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}
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}
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/* Populate the controls if defaults are provided in the URL */
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UI.initSetting('host', window.location.hostname);
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UI.initSetting('port', port);
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UI.initSetting('encrypt', (window.location.protocol === "https:"));
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UI.initSetting('view_clip', false);
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UI.initSetting('resize', 'off');
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UI.initSetting('quality', 6);
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UI.initSetting('compression', 2);
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UI.initSetting('shared', true);
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UI.initSetting('view_only', false);
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UI.initSetting('show_dot', false);
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UI.initSetting('path', 'websockify');
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UI.initSetting('repeaterID', '');
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UI.initSetting('reconnect', false);
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UI.initSetting('reconnect_delay', 5000);
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UI.setupSettingLabels();
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},
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// Adds a link to the label elements on the corresponding input elements
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setupSettingLabels() {
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const labels = document.getElementsByTagName('LABEL');
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for (let i = 0; i < labels.length; i++) {
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const htmlFor = labels[i].htmlFor;
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if (htmlFor != '') {
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const elem = document.getElementById(htmlFor);
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if (elem) elem.label = labels[i];
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} else {
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// If 'for' isn't set, use the first input element child
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const children = labels[i].children;
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for (let j = 0; j < children.length; j++) {
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if (children[j].form !== undefined) {
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children[j].label = labels[i];
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break;
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}
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}
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}
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}
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},
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/* ------^-------
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* /INIT
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* ==============
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* EVENT HANDLERS
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* ------v------*/
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addControlbarHandlers() {
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document.getElementById("noVNC_control_bar")
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.addEventListener('mousemove', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('mouseup', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('mousedown', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('keydown', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('mousedown', UI.keepControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('keydown', UI.keepControlbar);
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document.getElementById("noVNC_view_drag_button")
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.addEventListener('click', UI.toggleViewDrag);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('mousedown', UI.controlbarHandleMouseDown);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('mouseup', UI.controlbarHandleMouseUp);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('mousemove', UI.dragControlbarHandle);
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// resize events aren't available for elements
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window.addEventListener('resize', UI.updateControlbarHandle);
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const exps = document.getElementsByClassName("noVNC_expander");
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for (let i = 0;i < exps.length;i++) {
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exps[i].addEventListener('click', UI.toggleExpander);
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}
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},
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addTouchSpecificHandlers() {
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document.getElementById("noVNC_keyboard_button")
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.addEventListener('click', UI.toggleVirtualKeyboard);
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UI.touchKeyboard = new Keyboard(document.getElementById('noVNC_keyboardinput'));
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UI.touchKeyboard.onkeyevent = UI.keyEvent;
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UI.touchKeyboard.grab();
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document.getElementById("noVNC_keyboardinput")
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.addEventListener('input', UI.keyInput);
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document.getElementById("noVNC_keyboardinput")
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.addEventListener('focus', UI.onfocusVirtualKeyboard);
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document.getElementById("noVNC_keyboardinput")
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.addEventListener('blur', UI.onblurVirtualKeyboard);
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document.getElementById("noVNC_keyboardinput")
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.addEventListener('submit', () => false);
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document.documentElement
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.addEventListener('mousedown', UI.keepVirtualKeyboard, true);
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document.getElementById("noVNC_control_bar")
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.addEventListener('touchstart', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('touchmove', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('touchend', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('input', UI.activateControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('touchstart', UI.keepControlbar);
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document.getElementById("noVNC_control_bar")
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.addEventListener('input', UI.keepControlbar);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('touchstart', UI.controlbarHandleMouseDown);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('touchend', UI.controlbarHandleMouseUp);
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document.getElementById("noVNC_control_bar_handle")
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.addEventListener('touchmove', UI.dragControlbarHandle);
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},
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addExtraKeysHandlers() {
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document.getElementById("noVNC_toggle_extra_keys_button")
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.addEventListener('click', UI.toggleExtraKeys);
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document.getElementById("noVNC_toggle_ctrl_button")
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.addEventListener('click', UI.toggleCtrl);
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document.getElementById("noVNC_toggle_windows_button")
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.addEventListener('click', UI.toggleWindows);
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document.getElementById("noVNC_toggle_alt_button")
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.addEventListener('click', UI.toggleAlt);
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document.getElementById("noVNC_send_tab_button")
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.addEventListener('click', UI.sendTab);
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document.getElementById("noVNC_send_esc_button")
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.addEventListener('click', UI.sendEsc);
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document.getElementById("noVNC_send_ctrl_alt_del_button")
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.addEventListener('click', UI.sendCtrlAltDel);
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},
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addMachineHandlers() {
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document.getElementById("noVNC_shutdown_button")
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.addEventListener('click', () => UI.rfb.machineShutdown());
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document.getElementById("noVNC_reboot_button")
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.addEventListener('click', () => UI.rfb.machineReboot());
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document.getElementById("noVNC_reset_button")
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.addEventListener('click', () => UI.rfb.machineReset());
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document.getElementById("noVNC_power_button")
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.addEventListener('click', UI.togglePowerPanel);
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},
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addConnectionControlHandlers() {
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document.getElementById("noVNC_disconnect_button")
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.addEventListener('click', UI.disconnect);
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document.getElementById("noVNC_connect_button")
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.addEventListener('click', UI.connect);
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document.getElementById("noVNC_cancel_reconnect_button")
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.addEventListener('click', UI.cancelReconnect);
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document.getElementById("noVNC_credentials_button")
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.addEventListener('click', UI.setCredentials);
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},
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addClipboardHandlers() {
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document.getElementById("noVNC_clipboard_button")
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.addEventListener('click', UI.toggleClipboardPanel);
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document.getElementById("noVNC_clipboard_text")
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.addEventListener('change', UI.clipboardSend);
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document.getElementById("noVNC_clipboard_clear_button")
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.addEventListener('click', UI.clipboardClear);
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},
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// Add a call to save settings when the element changes,
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// unless the optional parameter changeFunc is used instead.
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addSettingChangeHandler(name, changeFunc) {
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const settingElem = document.getElementById("noVNC_setting_" + name);
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if (changeFunc === undefined) {
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changeFunc = () => UI.saveSetting(name);
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}
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settingElem.addEventListener('change', changeFunc);
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},
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addSettingsHandlers() {
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document.getElementById("noVNC_settings_button")
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.addEventListener('click', UI.toggleSettingsPanel);
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UI.addSettingChangeHandler('encrypt');
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UI.addSettingChangeHandler('resize');
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UI.addSettingChangeHandler('resize', UI.applyResizeMode);
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UI.addSettingChangeHandler('resize', UI.updateViewClip);
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UI.addSettingChangeHandler('quality');
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UI.addSettingChangeHandler('quality', UI.updateQuality);
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UI.addSettingChangeHandler('compression');
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UI.addSettingChangeHandler('compression', UI.updateCompression);
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UI.addSettingChangeHandler('view_clip');
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UI.addSettingChangeHandler('view_clip', UI.updateViewClip);
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UI.addSettingChangeHandler('shared');
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UI.addSettingChangeHandler('view_only');
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UI.addSettingChangeHandler('view_only', UI.updateViewOnly);
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UI.addSettingChangeHandler('show_dot');
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UI.addSettingChangeHandler('show_dot', UI.updateShowDotCursor);
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UI.addSettingChangeHandler('host');
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UI.addSettingChangeHandler('port');
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UI.addSettingChangeHandler('path');
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UI.addSettingChangeHandler('repeaterID');
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UI.addSettingChangeHandler('logging');
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UI.addSettingChangeHandler('logging', UI.updateLogging);
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UI.addSettingChangeHandler('reconnect');
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UI.addSettingChangeHandler('reconnect_delay');
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},
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addFullscreenHandlers() {
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document.getElementById("noVNC_fullscreen_button")
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.addEventListener('click', UI.toggleFullscreen);
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window.addEventListener('fullscreenchange', UI.updateFullscreenButton);
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window.addEventListener('mozfullscreenchange', UI.updateFullscreenButton);
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window.addEventListener('webkitfullscreenchange', UI.updateFullscreenButton);
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window.addEventListener('msfullscreenchange', UI.updateFullscreenButton);
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},
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/* ------^-------
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* /EVENT HANDLERS
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* ==============
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* VISUAL
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* ------v------*/
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// Disable/enable controls depending on connection state
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updateVisualState(state) {
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document.documentElement.classList.remove("noVNC_connecting");
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document.documentElement.classList.remove("noVNC_connected");
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document.documentElement.classList.remove("noVNC_disconnecting");
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document.documentElement.classList.remove("noVNC_reconnecting");
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const transitionElem = document.getElementById("noVNC_transition_text");
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switch (state) {
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case 'init':
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break;
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case 'connecting':
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transitionElem.textContent = _("Connecting...");
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document.documentElement.classList.add("noVNC_connecting");
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break;
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case 'connected':
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document.documentElement.classList.add("noVNC_connected");
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break;
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case 'disconnecting':
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transitionElem.textContent = _("Disconnecting...");
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document.documentElement.classList.add("noVNC_disconnecting");
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break;
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case 'disconnected':
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break;
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case 'reconnecting':
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transitionElem.textContent = _("Reconnecting...");
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document.documentElement.classList.add("noVNC_reconnecting");
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break;
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default:
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Log.Error("Invalid visual state: " + state);
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UI.showStatus(_("Internal error"), 'error');
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return;
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}
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if (UI.connected) {
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UI.updateViewClip();
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UI.disableSetting('encrypt');
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UI.disableSetting('shared');
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UI.disableSetting('host');
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UI.disableSetting('port');
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UI.disableSetting('path');
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UI.disableSetting('repeaterID');
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// Hide the controlbar after 2 seconds
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UI.closeControlbarTimeout = setTimeout(UI.closeControlbar, 2000);
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} else {
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UI.enableSetting('encrypt');
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UI.enableSetting('shared');
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UI.enableSetting('host');
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UI.enableSetting('port');
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UI.enableSetting('path');
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UI.enableSetting('repeaterID');
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UI.updatePowerButton();
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UI.keepControlbar();
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}
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// State change closes dialogs as they may not be relevant
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// anymore
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UI.closeAllPanels();
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document.getElementById('noVNC_credentials_dlg')
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.classList.remove('noVNC_open');
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},
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|
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showStatus(text, statusType, time) {
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const statusElem = document.getElementById('noVNC_status');
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if (typeof statusType === 'undefined') {
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statusType = 'normal';
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}
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|
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// Don't overwrite more severe visible statuses and never
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// errors. Only shows the first error.
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if (statusElem.classList.contains("noVNC_open")) {
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if (statusElem.classList.contains("noVNC_status_error")) {
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return;
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}
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if (statusElem.classList.contains("noVNC_status_warn") &&
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statusType === 'normal') {
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return;
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}
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}
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|
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clearTimeout(UI.statusTimeout);
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|
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switch (statusType) {
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case 'error':
|
|
statusElem.classList.remove("noVNC_status_warn");
|
|
statusElem.classList.remove("noVNC_status_normal");
|
|
statusElem.classList.add("noVNC_status_error");
|
|
break;
|
|
case 'warning':
|
|
case 'warn':
|
|
statusElem.classList.remove("noVNC_status_error");
|
|
statusElem.classList.remove("noVNC_status_normal");
|
|
statusElem.classList.add("noVNC_status_warn");
|
|
break;
|
|
case 'normal':
|
|
case 'info':
|
|
default:
|
|
statusElem.classList.remove("noVNC_status_error");
|
|
statusElem.classList.remove("noVNC_status_warn");
|
|
statusElem.classList.add("noVNC_status_normal");
|
|
break;
|
|
}
|
|
|
|
statusElem.textContent = text;
|
|
statusElem.classList.add("noVNC_open");
|
|
|
|
// If no time was specified, show the status for 1.5 seconds
|
|
if (typeof time === 'undefined') {
|
|
time = 1500;
|
|
}
|
|
|
|
// Error messages do not timeout
|
|
if (statusType !== 'error') {
|
|
UI.statusTimeout = window.setTimeout(UI.hideStatus, time);
|
|
}
|
|
},
|
|
|
|
hideStatus() {
|
|
clearTimeout(UI.statusTimeout);
|
|
document.getElementById('noVNC_status').classList.remove("noVNC_open");
|
|
},
|
|
|
|
activateControlbar(event) {
|
|
clearTimeout(UI.idleControlbarTimeout);
|
|
// We manipulate the anchor instead of the actual control
|
|
// bar in order to avoid creating new a stacking group
|
|
document.getElementById('noVNC_control_bar_anchor')
|
|
.classList.remove("noVNC_idle");
|
|
UI.idleControlbarTimeout = window.setTimeout(UI.idleControlbar, 2000);
|
|
},
|
|
|
|
idleControlbar() {
|
|
// Don't fade if a child of the control bar has focus
|
|
if (document.getElementById('noVNC_control_bar')
|
|
.contains(document.activeElement) && document.hasFocus()) {
|
|
UI.activateControlbar();
|
|
return;
|
|
}
|
|
|
|
document.getElementById('noVNC_control_bar_anchor')
|
|
.classList.add("noVNC_idle");
|
|
},
|
|
|
|
keepControlbar() {
|
|
clearTimeout(UI.closeControlbarTimeout);
|
|
},
|
|
|
|
openControlbar() {
|
|
document.getElementById('noVNC_control_bar')
|
|
.classList.add("noVNC_open");
|
|
},
|
|
|
|
closeControlbar() {
|
|
UI.closeAllPanels();
|
|
document.getElementById('noVNC_control_bar')
|
|
.classList.remove("noVNC_open");
|
|
UI.rfb.focus();
|
|
},
|
|
|
|
toggleControlbar() {
|
|
if (document.getElementById('noVNC_control_bar')
|
|
.classList.contains("noVNC_open")) {
|
|
UI.closeControlbar();
|
|
} else {
|
|
UI.openControlbar();
|
|
}
|
|
},
|
|
|
|
toggleControlbarSide() {
|
|
// Temporarily disable animation, if bar is displayed, to avoid weird
|
|
// movement. The transitionend-event will not fire when display=none.
|
|
const bar = document.getElementById('noVNC_control_bar');
|
|
const barDisplayStyle = window.getComputedStyle(bar).display;
|
|
if (barDisplayStyle !== 'none') {
|
|
bar.style.transitionDuration = '0s';
|
|
bar.addEventListener('transitionend', () => bar.style.transitionDuration = '');
|
|
}
|
|
|
|
const anchor = document.getElementById('noVNC_control_bar_anchor');
|
|
if (anchor.classList.contains("noVNC_right")) {
|
|
WebUtil.writeSetting('controlbar_pos', 'left');
|
|
anchor.classList.remove("noVNC_right");
|
|
} else {
|
|
WebUtil.writeSetting('controlbar_pos', 'right');
|
|
anchor.classList.add("noVNC_right");
|
|
}
|
|
|
|
// Consider this a movement of the handle
|
|
UI.controlbarDrag = true;
|
|
},
|
|
|
|
showControlbarHint(show) {
|
|
const hint = document.getElementById('noVNC_control_bar_hint');
|
|
if (show) {
|
|
hint.classList.add("noVNC_active");
|
|
} else {
|
|
hint.classList.remove("noVNC_active");
|
|
}
|
|
},
|
|
|
|
dragControlbarHandle(e) {
|
|
if (!UI.controlbarGrabbed) return;
|
|
|
|
const ptr = getPointerEvent(e);
|
|
|
|
const anchor = document.getElementById('noVNC_control_bar_anchor');
|
|
if (ptr.clientX < (window.innerWidth * 0.1)) {
|
|
if (anchor.classList.contains("noVNC_right")) {
|
|
UI.toggleControlbarSide();
|
|
}
|
|
} else if (ptr.clientX > (window.innerWidth * 0.9)) {
|
|
if (!anchor.classList.contains("noVNC_right")) {
|
|
UI.toggleControlbarSide();
|
|
}
|
|
}
|
|
|
|
if (!UI.controlbarDrag) {
|
|
const dragDistance = Math.abs(ptr.clientY - UI.controlbarMouseDownClientY);
|
|
|
|
if (dragDistance < dragThreshold) return;
|
|
|
|
UI.controlbarDrag = true;
|
|
}
|
|
|
|
const eventY = ptr.clientY - UI.controlbarMouseDownOffsetY;
|
|
|
|
UI.moveControlbarHandle(eventY);
|
|
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
UI.keepControlbar();
|
|
UI.activateControlbar();
|
|
},
|
|
|
|
// Move the handle but don't allow any position outside the bounds
|
|
moveControlbarHandle(viewportRelativeY) {
|
|
const handle = document.getElementById("noVNC_control_bar_handle");
|
|
const handleHeight = handle.getBoundingClientRect().height;
|
|
const controlbarBounds = document.getElementById("noVNC_control_bar")
|
|
.getBoundingClientRect();
|
|
const margin = 10;
|
|
|
|
// These heights need to be non-zero for the below logic to work
|
|
if (handleHeight === 0 || controlbarBounds.height === 0) {
|
|
return;
|
|
}
|
|
|
|
let newY = viewportRelativeY;
|
|
|
|
// Check if the coordinates are outside the control bar
|
|
if (newY < controlbarBounds.top + margin) {
|
|
// Force coordinates to be below the top of the control bar
|
|
newY = controlbarBounds.top + margin;
|
|
|
|
} else if (newY > controlbarBounds.top +
|
|
controlbarBounds.height - handleHeight - margin) {
|
|
// Force coordinates to be above the bottom of the control bar
|
|
newY = controlbarBounds.top +
|
|
controlbarBounds.height - handleHeight - margin;
|
|
}
|
|
|
|
// Corner case: control bar too small for stable position
|
|
if (controlbarBounds.height < (handleHeight + margin * 2)) {
|
|
newY = controlbarBounds.top +
|
|
(controlbarBounds.height - handleHeight) / 2;
|
|
}
|
|
|
|
// The transform needs coordinates that are relative to the parent
|
|
const parentRelativeY = newY - controlbarBounds.top;
|
|
handle.style.transform = "translateY(" + parentRelativeY + "px)";
|
|
},
|
|
|
|
updateControlbarHandle() {
|
|
// Since the control bar is fixed on the viewport and not the page,
|
|
// the move function expects coordinates relative the the viewport.
|
|
const handle = document.getElementById("noVNC_control_bar_handle");
|
|
const handleBounds = handle.getBoundingClientRect();
|
|
UI.moveControlbarHandle(handleBounds.top);
|
|
},
|
|
|
|
controlbarHandleMouseUp(e) {
|
|
if ((e.type == "mouseup") && (e.button != 0)) return;
|
|
|
|
// mouseup and mousedown on the same place toggles the controlbar
|
|
if (UI.controlbarGrabbed && !UI.controlbarDrag) {
|
|
UI.toggleControlbar();
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
UI.keepControlbar();
|
|
UI.activateControlbar();
|
|
}
|
|
UI.controlbarGrabbed = false;
|
|
UI.showControlbarHint(false);
|
|
},
|
|
|
|
controlbarHandleMouseDown(e) {
|
|
if ((e.type == "mousedown") && (e.button != 0)) return;
|
|
|
|
const ptr = getPointerEvent(e);
|
|
|
|
const handle = document.getElementById("noVNC_control_bar_handle");
|
|
const bounds = handle.getBoundingClientRect();
|
|
|
|
// Touch events have implicit capture
|
|
if (e.type === "mousedown") {
|
|
setCapture(handle);
|
|
}
|
|
|
|
UI.controlbarGrabbed = true;
|
|
UI.controlbarDrag = false;
|
|
|
|
UI.showControlbarHint(true);
|
|
|
|
UI.controlbarMouseDownClientY = ptr.clientY;
|
|
UI.controlbarMouseDownOffsetY = ptr.clientY - bounds.top;
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
UI.keepControlbar();
|
|
UI.activateControlbar();
|
|
},
|
|
|
|
toggleExpander(e) {
|
|
if (this.classList.contains("noVNC_open")) {
|
|
this.classList.remove("noVNC_open");
|
|
} else {
|
|
this.classList.add("noVNC_open");
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /VISUAL
|
|
* ==============
|
|
* SETTINGS
|
|
* ------v------*/
|
|
|
|
// Initial page load read/initialization of settings
|
|
initSetting(name, defVal) {
|
|
// Check Query string followed by cookie
|
|
let val = WebUtil.getConfigVar(name);
|
|
if (val === null) {
|
|
val = WebUtil.readSetting(name, defVal);
|
|
}
|
|
WebUtil.setSetting(name, val);
|
|
UI.updateSetting(name);
|
|
return val;
|
|
},
|
|
|
|
// Set the new value, update and disable form control setting
|
|
forceSetting(name, val) {
|
|
WebUtil.setSetting(name, val);
|
|
UI.updateSetting(name);
|
|
UI.disableSetting(name);
|
|
},
|
|
|
|
// Update cookie and form control setting. If value is not set, then
|
|
// updates from control to current cookie setting.
|
|
updateSetting(name) {
|
|
|
|
// Update the settings control
|
|
let value = UI.getSetting(name);
|
|
|
|
const ctrl = document.getElementById('noVNC_setting_' + name);
|
|
if (ctrl.type === 'checkbox') {
|
|
ctrl.checked = value;
|
|
|
|
} else if (typeof ctrl.options !== 'undefined') {
|
|
for (let i = 0; i < ctrl.options.length; i += 1) {
|
|
if (ctrl.options[i].value === value) {
|
|
ctrl.selectedIndex = i;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
ctrl.value = value;
|
|
}
|
|
},
|
|
|
|
// Save control setting to cookie
|
|
saveSetting(name) {
|
|
const ctrl = document.getElementById('noVNC_setting_' + name);
|
|
let val;
|
|
if (ctrl.type === 'checkbox') {
|
|
val = ctrl.checked;
|
|
} else if (typeof ctrl.options !== 'undefined') {
|
|
val = ctrl.options[ctrl.selectedIndex].value;
|
|
} else {
|
|
val = ctrl.value;
|
|
}
|
|
WebUtil.writeSetting(name, val);
|
|
//Log.Debug("Setting saved '" + name + "=" + val + "'");
|
|
return val;
|
|
},
|
|
|
|
// Read form control compatible setting from cookie
|
|
getSetting(name) {
|
|
const ctrl = document.getElementById('noVNC_setting_' + name);
|
|
let val = WebUtil.readSetting(name);
|
|
if (typeof val !== 'undefined' && val !== null && ctrl.type === 'checkbox') {
|
|
if (val.toString().toLowerCase() in {'0': 1, 'no': 1, 'false': 1}) {
|
|
val = false;
|
|
} else {
|
|
val = true;
|
|
}
|
|
}
|
|
return val;
|
|
},
|
|
|
|
// These helpers compensate for the lack of parent-selectors and
|
|
// previous-sibling-selectors in CSS which are needed when we want to
|
|
// disable the labels that belong to disabled input elements.
|
|
disableSetting(name) {
|
|
const ctrl = document.getElementById('noVNC_setting_' + name);
|
|
ctrl.disabled = true;
|
|
ctrl.label.classList.add('noVNC_disabled');
|
|
},
|
|
|
|
enableSetting(name) {
|
|
const ctrl = document.getElementById('noVNC_setting_' + name);
|
|
ctrl.disabled = false;
|
|
ctrl.label.classList.remove('noVNC_disabled');
|
|
},
|
|
|
|
/* ------^-------
|
|
* /SETTINGS
|
|
* ==============
|
|
* PANELS
|
|
* ------v------*/
|
|
|
|
closeAllPanels() {
|
|
UI.closeSettingsPanel();
|
|
UI.closePowerPanel();
|
|
UI.closeClipboardPanel();
|
|
UI.closeExtraKeys();
|
|
},
|
|
|
|
/* ------^-------
|
|
* /PANELS
|
|
* ==============
|
|
* SETTINGS (panel)
|
|
* ------v------*/
|
|
|
|
openSettingsPanel() {
|
|
UI.closeAllPanels();
|
|
UI.openControlbar();
|
|
|
|
// Refresh UI elements from saved cookies
|
|
UI.updateSetting('encrypt');
|
|
UI.updateSetting('view_clip');
|
|
UI.updateSetting('resize');
|
|
UI.updateSetting('quality');
|
|
UI.updateSetting('compression');
|
|
UI.updateSetting('shared');
|
|
UI.updateSetting('view_only');
|
|
UI.updateSetting('path');
|
|
UI.updateSetting('repeaterID');
|
|
UI.updateSetting('logging');
|
|
UI.updateSetting('reconnect');
|
|
UI.updateSetting('reconnect_delay');
|
|
|
|
document.getElementById('noVNC_settings')
|
|
.classList.add("noVNC_open");
|
|
document.getElementById('noVNC_settings_button')
|
|
.classList.add("noVNC_selected");
|
|
},
|
|
|
|
closeSettingsPanel() {
|
|
document.getElementById('noVNC_settings')
|
|
.classList.remove("noVNC_open");
|
|
document.getElementById('noVNC_settings_button')
|
|
.classList.remove("noVNC_selected");
|
|
},
|
|
|
|
toggleSettingsPanel() {
|
|
if (document.getElementById('noVNC_settings')
|
|
.classList.contains("noVNC_open")) {
|
|
UI.closeSettingsPanel();
|
|
} else {
|
|
UI.openSettingsPanel();
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /SETTINGS
|
|
* ==============
|
|
* POWER
|
|
* ------v------*/
|
|
|
|
openPowerPanel() {
|
|
UI.closeAllPanels();
|
|
UI.openControlbar();
|
|
|
|
document.getElementById('noVNC_power')
|
|
.classList.add("noVNC_open");
|
|
document.getElementById('noVNC_power_button')
|
|
.classList.add("noVNC_selected");
|
|
},
|
|
|
|
closePowerPanel() {
|
|
document.getElementById('noVNC_power')
|
|
.classList.remove("noVNC_open");
|
|
document.getElementById('noVNC_power_button')
|
|
.classList.remove("noVNC_selected");
|
|
},
|
|
|
|
togglePowerPanel() {
|
|
if (document.getElementById('noVNC_power')
|
|
.classList.contains("noVNC_open")) {
|
|
UI.closePowerPanel();
|
|
} else {
|
|
UI.openPowerPanel();
|
|
}
|
|
},
|
|
|
|
// Disable/enable power button
|
|
updatePowerButton() {
|
|
if (UI.connected &&
|
|
UI.rfb.capabilities.power &&
|
|
!UI.rfb.viewOnly) {
|
|
document.getElementById('noVNC_power_button')
|
|
.classList.remove("noVNC_hidden");
|
|
} else {
|
|
document.getElementById('noVNC_power_button')
|
|
.classList.add("noVNC_hidden");
|
|
// Close power panel if open
|
|
UI.closePowerPanel();
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /POWER
|
|
* ==============
|
|
* CLIPBOARD
|
|
* ------v------*/
|
|
|
|
openClipboardPanel() {
|
|
UI.closeAllPanels();
|
|
UI.openControlbar();
|
|
|
|
document.getElementById('noVNC_clipboard')
|
|
.classList.add("noVNC_open");
|
|
document.getElementById('noVNC_clipboard_button')
|
|
.classList.add("noVNC_selected");
|
|
},
|
|
|
|
closeClipboardPanel() {
|
|
document.getElementById('noVNC_clipboard')
|
|
.classList.remove("noVNC_open");
|
|
document.getElementById('noVNC_clipboard_button')
|
|
.classList.remove("noVNC_selected");
|
|
},
|
|
|
|
toggleClipboardPanel() {
|
|
if (document.getElementById('noVNC_clipboard')
|
|
.classList.contains("noVNC_open")) {
|
|
UI.closeClipboardPanel();
|
|
} else {
|
|
UI.openClipboardPanel();
|
|
}
|
|
},
|
|
|
|
clipboardReceive(e) {
|
|
Log.Debug(">> UI.clipboardReceive: " + e.detail.text.substr(0, 40) + "...");
|
|
document.getElementById('noVNC_clipboard_text').value = e.detail.text;
|
|
Log.Debug("<< UI.clipboardReceive");
|
|
},
|
|
|
|
clipboardClear() {
|
|
document.getElementById('noVNC_clipboard_text').value = "";
|
|
UI.rfb.clipboardPasteFrom("");
|
|
},
|
|
|
|
clipboardSend() {
|
|
const text = document.getElementById('noVNC_clipboard_text').value;
|
|
Log.Debug(">> UI.clipboardSend: " + text.substr(0, 40) + "...");
|
|
UI.rfb.clipboardPasteFrom(text);
|
|
Log.Debug("<< UI.clipboardSend");
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CLIPBOARD
|
|
* ==============
|
|
* CONNECTION
|
|
* ------v------*/
|
|
|
|
openConnectPanel() {
|
|
document.getElementById('noVNC_connect_dlg')
|
|
.classList.add("noVNC_open");
|
|
},
|
|
|
|
closeConnectPanel() {
|
|
document.getElementById('noVNC_connect_dlg')
|
|
.classList.remove("noVNC_open");
|
|
},
|
|
|
|
connect(event, password) {
|
|
|
|
// Ignore when rfb already exists
|
|
if (typeof UI.rfb !== 'undefined') {
|
|
return;
|
|
}
|
|
|
|
const host = UI.getSetting('host');
|
|
const port = UI.getSetting('port');
|
|
const path = UI.getSetting('path');
|
|
|
|
if (typeof password === 'undefined') {
|
|
password = WebUtil.getConfigVar('password');
|
|
UI.reconnectPassword = password;
|
|
}
|
|
|
|
if (password === null) {
|
|
password = undefined;
|
|
}
|
|
|
|
UI.hideStatus();
|
|
|
|
if (!host) {
|
|
Log.Error("Can't connect when host is: " + host);
|
|
UI.showStatus(_("Must set host"), 'error');
|
|
return;
|
|
}
|
|
|
|
UI.closeConnectPanel();
|
|
|
|
UI.updateVisualState('connecting');
|
|
|
|
UI.rfb = new RFB(document.getElementById('noVNC_container'), urlargs.ws,
|
|
{ shared: UI.getSetting('shared'),
|
|
repeaterID: UI.getSetting('repeaterID'),
|
|
credentials: { password: password } });
|
|
UI.rfb.addEventListener("connect", UI.connectFinished);
|
|
UI.rfb.addEventListener("disconnect", UI.disconnectFinished);
|
|
UI.rfb.addEventListener("credentialsrequired", UI.credentials);
|
|
UI.rfb.addEventListener("securityfailure", UI.securityFailed);
|
|
UI.rfb.addEventListener("capabilities", UI.updatePowerButton);
|
|
UI.rfb.addEventListener("clipboard", UI.clipboardReceive);
|
|
UI.rfb.addEventListener("bell", UI.bell);
|
|
UI.rfb.addEventListener("desktopname", UI.updateDesktopName);
|
|
UI.rfb.clipViewport = UI.getSetting('view_clip');
|
|
UI.rfb.scaleViewport = UI.getSetting('resize') === 'scale';
|
|
UI.rfb.resizeSession = UI.getSetting('resize') === 'remote';
|
|
UI.rfb.qualityLevel = parseInt(UI.getSetting('quality'));
|
|
UI.rfb.compressionLevel = parseInt(UI.getSetting('compression'));
|
|
UI.rfb.showDotCursor = UI.getSetting('show_dot');
|
|
|
|
UI.updateViewOnly(); // requires UI.rfb
|
|
},
|
|
|
|
disconnect() {
|
|
UI.rfb.disconnect();
|
|
|
|
UI.connected = false;
|
|
|
|
// Disable automatic reconnecting
|
|
UI.inhibitReconnect = true;
|
|
|
|
UI.updateVisualState('disconnecting');
|
|
|
|
// Don't display the connection settings until we're actually disconnected
|
|
},
|
|
|
|
reconnect() {
|
|
UI.reconnectCallback = null;
|
|
|
|
// if reconnect has been disabled in the meantime, do nothing.
|
|
if (UI.inhibitReconnect) {
|
|
return;
|
|
}
|
|
|
|
UI.connect(null, UI.reconnectPassword);
|
|
},
|
|
|
|
cancelReconnect() {
|
|
if (UI.reconnectCallback !== null) {
|
|
clearTimeout(UI.reconnectCallback);
|
|
UI.reconnectCallback = null;
|
|
}
|
|
|
|
UI.updateVisualState('disconnected');
|
|
|
|
UI.openControlbar();
|
|
UI.openConnectPanel();
|
|
},
|
|
|
|
connectFinished(e) {
|
|
UI.connected = true;
|
|
UI.inhibitReconnect = false;
|
|
|
|
let msg;
|
|
if (UI.getSetting('encrypt')) {
|
|
msg = _("Connected (encrypted) to ") + UI.desktopName;
|
|
} else {
|
|
msg = _("Connected (unencrypted) to ") + UI.desktopName;
|
|
}
|
|
UI.showStatus(msg);
|
|
UI.updateVisualState('connected');
|
|
|
|
// Do this last because it can only be used on rendered elements
|
|
UI.rfb.focus();
|
|
},
|
|
|
|
disconnectFinished(e) {
|
|
const wasConnected = UI.connected;
|
|
|
|
// This variable is ideally set when disconnection starts, but
|
|
// when the disconnection isn't clean or if it is initiated by
|
|
// the server, we need to do it here as well since
|
|
// UI.disconnect() won't be used in those cases.
|
|
UI.connected = false;
|
|
|
|
UI.rfb = undefined;
|
|
|
|
if (!e.detail.clean) {
|
|
UI.updateVisualState('disconnected');
|
|
if (wasConnected) {
|
|
UI.showStatus(_("Something went wrong, connection is closed"),
|
|
'error');
|
|
} else {
|
|
UI.showStatus(_("Failed to connect to server"), 'error');
|
|
}
|
|
} else if (UI.getSetting('reconnect', false) === true && !UI.inhibitReconnect) {
|
|
UI.updateVisualState('reconnecting');
|
|
|
|
const delay = parseInt(UI.getSetting('reconnect_delay'));
|
|
UI.reconnectCallback = setTimeout(UI.reconnect, delay);
|
|
return;
|
|
} else {
|
|
UI.updateVisualState('disconnected');
|
|
UI.showStatus(_("Disconnected"), 'normal');
|
|
}
|
|
|
|
UI.openControlbar();
|
|
UI.openConnectPanel();
|
|
},
|
|
|
|
securityFailed(e) {
|
|
let msg = "";
|
|
// On security failures we might get a string with a reason
|
|
// directly from the server. Note that we can't control if
|
|
// this string is translated or not.
|
|
if ('reason' in e.detail) {
|
|
msg = _("New connection has been rejected with reason: ") +
|
|
e.detail.reason;
|
|
} else {
|
|
msg = _("New connection has been rejected");
|
|
}
|
|
UI.showStatus(msg, 'error');
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CONNECTION
|
|
* ==============
|
|
* PASSWORD
|
|
* ------v------*/
|
|
|
|
credentials(e) {
|
|
// FIXME: handle more types
|
|
|
|
document.getElementById("noVNC_username_block").classList.remove("noVNC_hidden");
|
|
document.getElementById("noVNC_password_block").classList.remove("noVNC_hidden");
|
|
|
|
let inputFocus = "none";
|
|
if (e.detail.types.indexOf("username") === -1) {
|
|
document.getElementById("noVNC_username_block").classList.add("noVNC_hidden");
|
|
} else {
|
|
inputFocus = inputFocus === "none" ? "noVNC_username_input" : inputFocus;
|
|
}
|
|
if (e.detail.types.indexOf("password") === -1) {
|
|
document.getElementById("noVNC_password_block").classList.add("noVNC_hidden");
|
|
} else {
|
|
inputFocus = inputFocus === "none" ? "noVNC_password_input" : inputFocus;
|
|
}
|
|
document.getElementById('noVNC_credentials_dlg')
|
|
.classList.add('noVNC_open');
|
|
|
|
setTimeout(() => document
|
|
.getElementById(inputFocus).focus(), 100);
|
|
|
|
Log.Warn("Server asked for credentials");
|
|
UI.showStatus(_("Credentials are required"), "warning");
|
|
},
|
|
|
|
setCredentials(e) {
|
|
// Prevent actually submitting the form
|
|
e.preventDefault();
|
|
|
|
let inputElemUsername = document.getElementById('noVNC_username_input');
|
|
const username = inputElemUsername.value;
|
|
|
|
let inputElemPassword = document.getElementById('noVNC_password_input');
|
|
const password = inputElemPassword.value;
|
|
// Clear the input after reading the password
|
|
inputElemPassword.value = "";
|
|
|
|
UI.rfb.sendCredentials({ username: username, password: password });
|
|
UI.reconnectPassword = password;
|
|
document.getElementById('noVNC_credentials_dlg')
|
|
.classList.remove('noVNC_open');
|
|
},
|
|
|
|
/* ------^-------
|
|
* /PASSWORD
|
|
* ==============
|
|
* FULLSCREEN
|
|
* ------v------*/
|
|
|
|
toggleFullscreen() {
|
|
if (document.fullscreenElement || // alternative standard method
|
|
document.mozFullScreenElement || // currently working methods
|
|
document.webkitFullscreenElement ||
|
|
document.msFullscreenElement) {
|
|
if (document.exitFullscreen) {
|
|
document.exitFullscreen();
|
|
} else if (document.mozCancelFullScreen) {
|
|
document.mozCancelFullScreen();
|
|
} else if (document.webkitExitFullscreen) {
|
|
document.webkitExitFullscreen();
|
|
} else if (document.msExitFullscreen) {
|
|
document.msExitFullscreen();
|
|
}
|
|
} else {
|
|
if (document.documentElement.requestFullscreen) {
|
|
document.documentElement.requestFullscreen();
|
|
} else if (document.documentElement.mozRequestFullScreen) {
|
|
document.documentElement.mozRequestFullScreen();
|
|
} else if (document.documentElement.webkitRequestFullscreen) {
|
|
document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
|
|
} else if (document.body.msRequestFullscreen) {
|
|
document.body.msRequestFullscreen();
|
|
}
|
|
}
|
|
UI.updateFullscreenButton();
|
|
},
|
|
|
|
updateFullscreenButton() {
|
|
if (document.fullscreenElement || // alternative standard method
|
|
document.mozFullScreenElement || // currently working methods
|
|
document.webkitFullscreenElement ||
|
|
document.msFullscreenElement ) {
|
|
document.getElementById('noVNC_fullscreen_button')
|
|
.classList.add("noVNC_selected");
|
|
} else {
|
|
document.getElementById('noVNC_fullscreen_button')
|
|
.classList.remove("noVNC_selected");
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /FULLSCREEN
|
|
* ==============
|
|
* RESIZE
|
|
* ------v------*/
|
|
|
|
// Apply remote resizing or local scaling
|
|
applyResizeMode() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.scaleViewport = UI.getSetting('resize') === 'scale';
|
|
UI.rfb.resizeSession = UI.getSetting('resize') === 'remote';
|
|
},
|
|
|
|
/* ------^-------
|
|
* /RESIZE
|
|
* ==============
|
|
* VIEW CLIPPING
|
|
* ------v------*/
|
|
|
|
// Update viewport clipping property for the connection. The normal
|
|
// case is to get the value from the setting. There are special cases
|
|
// for when the viewport is scaled or when a touch device is used.
|
|
updateViewClip() {
|
|
if (!UI.rfb) return;
|
|
|
|
const scaling = UI.getSetting('resize') === 'scale';
|
|
|
|
if (scaling) {
|
|
// Can't be clipping if viewport is scaled to fit
|
|
UI.forceSetting('view_clip', false);
|
|
UI.rfb.clipViewport = false;
|
|
} else if (!hasScrollbarGutter) {
|
|
// Some platforms have scrollbars that are difficult
|
|
// to use in our case, so we always use our own panning
|
|
UI.forceSetting('view_clip', true);
|
|
UI.rfb.clipViewport = true;
|
|
} else {
|
|
UI.enableSetting('view_clip');
|
|
UI.rfb.clipViewport = UI.getSetting('view_clip');
|
|
}
|
|
|
|
// Changing the viewport may change the state of
|
|
// the dragging button
|
|
UI.updateViewDrag();
|
|
},
|
|
|
|
/* ------^-------
|
|
* /VIEW CLIPPING
|
|
* ==============
|
|
* VIEWDRAG
|
|
* ------v------*/
|
|
|
|
toggleViewDrag() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.dragViewport = !UI.rfb.dragViewport;
|
|
UI.updateViewDrag();
|
|
},
|
|
|
|
updateViewDrag() {
|
|
if (!UI.connected) return;
|
|
|
|
const viewDragButton = document.getElementById('noVNC_view_drag_button');
|
|
|
|
if (!UI.rfb.clipViewport && UI.rfb.dragViewport) {
|
|
// We are no longer clipping the viewport. Make sure
|
|
// viewport drag isn't active when it can't be used.
|
|
UI.rfb.dragViewport = false;
|
|
}
|
|
|
|
if (UI.rfb.dragViewport) {
|
|
viewDragButton.classList.add("noVNC_selected");
|
|
} else {
|
|
viewDragButton.classList.remove("noVNC_selected");
|
|
}
|
|
|
|
if (UI.rfb.clipViewport) {
|
|
viewDragButton.classList.remove("noVNC_hidden");
|
|
} else {
|
|
viewDragButton.classList.add("noVNC_hidden");
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /VIEWDRAG
|
|
* ==============
|
|
* QUALITY
|
|
* ------v------*/
|
|
|
|
updateQuality() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.qualityLevel = parseInt(UI.getSetting('quality'));
|
|
},
|
|
|
|
/* ------^-------
|
|
* /QUALITY
|
|
* ==============
|
|
* COMPRESSION
|
|
* ------v------*/
|
|
|
|
updateCompression() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.compressionLevel = parseInt(UI.getSetting('compression'));
|
|
},
|
|
|
|
/* ------^-------
|
|
* /COMPRESSION
|
|
* ==============
|
|
* KEYBOARD
|
|
* ------v------*/
|
|
|
|
showVirtualKeyboard() {
|
|
if (!isTouchDevice) return;
|
|
|
|
const input = document.getElementById('noVNC_keyboardinput');
|
|
|
|
if (document.activeElement == input) return;
|
|
|
|
input.focus();
|
|
|
|
try {
|
|
const l = input.value.length;
|
|
// Move the caret to the end
|
|
input.setSelectionRange(l, l);
|
|
} catch (err) {
|
|
// setSelectionRange is undefined in Google Chrome
|
|
}
|
|
},
|
|
|
|
hideVirtualKeyboard() {
|
|
if (!isTouchDevice) return;
|
|
|
|
const input = document.getElementById('noVNC_keyboardinput');
|
|
|
|
if (document.activeElement != input) return;
|
|
|
|
input.blur();
|
|
},
|
|
|
|
toggleVirtualKeyboard() {
|
|
if (document.getElementById('noVNC_keyboard_button')
|
|
.classList.contains("noVNC_selected")) {
|
|
UI.hideVirtualKeyboard();
|
|
} else {
|
|
UI.showVirtualKeyboard();
|
|
}
|
|
},
|
|
|
|
onfocusVirtualKeyboard(event) {
|
|
document.getElementById('noVNC_keyboard_button')
|
|
.classList.add("noVNC_selected");
|
|
if (UI.rfb) {
|
|
UI.rfb.focusOnClick = false;
|
|
}
|
|
},
|
|
|
|
onblurVirtualKeyboard(event) {
|
|
document.getElementById('noVNC_keyboard_button')
|
|
.classList.remove("noVNC_selected");
|
|
if (UI.rfb) {
|
|
UI.rfb.focusOnClick = true;
|
|
}
|
|
},
|
|
|
|
keepVirtualKeyboard(event) {
|
|
const input = document.getElementById('noVNC_keyboardinput');
|
|
|
|
// Only prevent focus change if the virtual keyboard is active
|
|
if (document.activeElement != input) {
|
|
return;
|
|
}
|
|
|
|
// Only allow focus to move to other elements that need
|
|
// focus to function properly
|
|
if (event.target.form !== undefined) {
|
|
switch (event.target.type) {
|
|
case 'text':
|
|
case 'email':
|
|
case 'search':
|
|
case 'password':
|
|
case 'tel':
|
|
case 'url':
|
|
case 'textarea':
|
|
case 'select-one':
|
|
case 'select-multiple':
|
|
return;
|
|
}
|
|
}
|
|
|
|
event.preventDefault();
|
|
},
|
|
|
|
keyboardinputReset() {
|
|
const kbi = document.getElementById('noVNC_keyboardinput');
|
|
kbi.value = new Array(UI.defaultKeyboardinputLen).join("_");
|
|
UI.lastKeyboardinput = kbi.value;
|
|
},
|
|
|
|
keyEvent(keysym, code, down) {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.sendKey(keysym, code, down);
|
|
},
|
|
|
|
// When normal keyboard events are left uncought, use the input events from
|
|
// the keyboardinput element instead and generate the corresponding key events.
|
|
// This code is required since some browsers on Android are inconsistent in
|
|
// sending keyCodes in the normal keyboard events when using on screen keyboards.
|
|
keyInput(event) {
|
|
|
|
if (!UI.rfb) return;
|
|
|
|
const newValue = event.target.value;
|
|
|
|
if (!UI.lastKeyboardinput) {
|
|
UI.keyboardinputReset();
|
|
}
|
|
const oldValue = UI.lastKeyboardinput;
|
|
|
|
let newLen;
|
|
try {
|
|
// Try to check caret position since whitespace at the end
|
|
// will not be considered by value.length in some browsers
|
|
newLen = Math.max(event.target.selectionStart, newValue.length);
|
|
} catch (err) {
|
|
// selectionStart is undefined in Google Chrome
|
|
newLen = newValue.length;
|
|
}
|
|
const oldLen = oldValue.length;
|
|
|
|
let inputs = newLen - oldLen;
|
|
let backspaces = inputs < 0 ? -inputs : 0;
|
|
|
|
// Compare the old string with the new to account for
|
|
// text-corrections or other input that modify existing text
|
|
for (let i = 0; i < Math.min(oldLen, newLen); i++) {
|
|
if (newValue.charAt(i) != oldValue.charAt(i)) {
|
|
inputs = newLen - i;
|
|
backspaces = oldLen - i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Send the key events
|
|
for (let i = 0; i < backspaces; i++) {
|
|
UI.rfb.sendKey(KeyTable.XK_BackSpace, "Backspace");
|
|
}
|
|
for (let i = newLen - inputs; i < newLen; i++) {
|
|
UI.rfb.sendKey(keysyms.lookup(newValue.charCodeAt(i)));
|
|
}
|
|
|
|
// Control the text content length in the keyboardinput element
|
|
if (newLen > 2 * UI.defaultKeyboardinputLen) {
|
|
UI.keyboardinputReset();
|
|
} else if (newLen < 1) {
|
|
// There always have to be some text in the keyboardinput
|
|
// element with which backspace can interact.
|
|
UI.keyboardinputReset();
|
|
// This sometimes causes the keyboard to disappear for a second
|
|
// but it is required for the android keyboard to recognize that
|
|
// text has been added to the field
|
|
event.target.blur();
|
|
// This has to be ran outside of the input handler in order to work
|
|
setTimeout(event.target.focus.bind(event.target), 0);
|
|
} else {
|
|
UI.lastKeyboardinput = newValue;
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /KEYBOARD
|
|
* ==============
|
|
* EXTRA KEYS
|
|
* ------v------*/
|
|
|
|
openExtraKeys() {
|
|
UI.closeAllPanels();
|
|
UI.openControlbar();
|
|
|
|
document.getElementById('noVNC_modifiers')
|
|
.classList.add("noVNC_open");
|
|
document.getElementById('noVNC_toggle_extra_keys_button')
|
|
.classList.add("noVNC_selected");
|
|
},
|
|
|
|
closeExtraKeys() {
|
|
document.getElementById('noVNC_modifiers')
|
|
.classList.remove("noVNC_open");
|
|
document.getElementById('noVNC_toggle_extra_keys_button')
|
|
.classList.remove("noVNC_selected");
|
|
},
|
|
|
|
toggleExtraKeys() {
|
|
if (document.getElementById('noVNC_modifiers')
|
|
.classList.contains("noVNC_open")) {
|
|
UI.closeExtraKeys();
|
|
} else {
|
|
UI.openExtraKeys();
|
|
}
|
|
},
|
|
|
|
sendEsc() {
|
|
UI.sendKey(KeyTable.XK_Escape, "Escape");
|
|
},
|
|
|
|
sendTab() {
|
|
UI.sendKey(KeyTable.XK_Tab, "Tab");
|
|
},
|
|
|
|
toggleCtrl() {
|
|
const btn = document.getElementById('noVNC_toggle_ctrl_button');
|
|
if (btn.classList.contains("noVNC_selected")) {
|
|
UI.sendKey(KeyTable.XK_Control_L, "ControlLeft", false);
|
|
btn.classList.remove("noVNC_selected");
|
|
} else {
|
|
UI.sendKey(KeyTable.XK_Control_L, "ControlLeft", true);
|
|
btn.classList.add("noVNC_selected");
|
|
}
|
|
},
|
|
|
|
toggleWindows() {
|
|
const btn = document.getElementById('noVNC_toggle_windows_button');
|
|
if (btn.classList.contains("noVNC_selected")) {
|
|
UI.sendKey(KeyTable.XK_Super_L, "MetaLeft", false);
|
|
btn.classList.remove("noVNC_selected");
|
|
} else {
|
|
UI.sendKey(KeyTable.XK_Super_L, "MetaLeft", true);
|
|
btn.classList.add("noVNC_selected");
|
|
}
|
|
},
|
|
|
|
toggleAlt() {
|
|
const btn = document.getElementById('noVNC_toggle_alt_button');
|
|
if (btn.classList.contains("noVNC_selected")) {
|
|
UI.sendKey(KeyTable.XK_Alt_L, "AltLeft", false);
|
|
btn.classList.remove("noVNC_selected");
|
|
} else {
|
|
UI.sendKey(KeyTable.XK_Alt_L, "AltLeft", true);
|
|
btn.classList.add("noVNC_selected");
|
|
}
|
|
},
|
|
|
|
sendCtrlAltDel() {
|
|
UI.rfb.sendCtrlAltDel();
|
|
// See below
|
|
UI.rfb.focus();
|
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UI.idleControlbar();
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},
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|
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sendKey(keysym, code, down) {
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UI.rfb.sendKey(keysym, code, down);
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|
|
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// Move focus to the screen in order to be able to use the
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// keyboard right after these extra keys.
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// The exception is when a virtual keyboard is used, because
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|
// if we focus the screen the virtual keyboard would be closed.
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|
// In this case we focus our special virtual keyboard input
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|
// element instead.
|
|
if (document.getElementById('noVNC_keyboard_button')
|
|
.classList.contains("noVNC_selected")) {
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|
document.getElementById('noVNC_keyboardinput').focus();
|
|
} else {
|
|
UI.rfb.focus();
|
|
}
|
|
// fade out the controlbar to highlight that
|
|
// the focus has been moved to the screen
|
|
UI.idleControlbar();
|
|
},
|
|
|
|
/* ------^-------
|
|
* /EXTRA KEYS
|
|
* ==============
|
|
* MISC
|
|
* ------v------*/
|
|
|
|
updateViewOnly() {
|
|
if (!UI.rfb) return;
|
|
UI.rfb.viewOnly = UI.getSetting('view_only');
|
|
|
|
// Hide input related buttons in view only mode
|
|
if (UI.rfb.viewOnly) {
|
|
document.getElementById('noVNC_keyboard_button')
|
|
.classList.add('noVNC_hidden');
|
|
document.getElementById('noVNC_toggle_extra_keys_button')
|
|
.classList.add('noVNC_hidden');
|
|
document.getElementById('noVNC_clipboard_button')
|
|
.classList.add('noVNC_hidden');
|
|
} else {
|
|
document.getElementById('noVNC_keyboard_button')
|
|
.classList.remove('noVNC_hidden');
|
|
document.getElementById('noVNC_toggle_extra_keys_button')
|
|
.classList.remove('noVNC_hidden');
|
|
document.getElementById('noVNC_clipboard_button')
|
|
.classList.remove('noVNC_hidden');
|
|
}
|
|
},
|
|
|
|
updateShowDotCursor() {
|
|
if (!UI.rfb) return;
|
|
UI.rfb.showDotCursor = UI.getSetting('show_dot');
|
|
},
|
|
|
|
updateLogging() {
|
|
WebUtil.initLogging(UI.getSetting('logging'));
|
|
},
|
|
|
|
updateDesktopName(e) {
|
|
//UI.desktopName = e.detail.name;
|
|
// Display the desktop name in the document title
|
|
//document.title = e.detail.name + " - " + PAGE_TITLE;
|
|
},
|
|
|
|
bell(e) {
|
|
if (WebUtil.getConfigVar('bell', 'on') === 'on') {
|
|
const promise = document.getElementById('noVNC_bell').play();
|
|
// The standards disagree on the return value here
|
|
if (promise) {
|
|
promise.catch((e) => {
|
|
if (e.name === "NotAllowedError") {
|
|
// Ignore when the browser doesn't let us play audio.
|
|
// It is common that the browsers require audio to be
|
|
// initiated from a user action.
|
|
} else {
|
|
Log.Error("Unable to play bell: " + e);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
},
|
|
|
|
//Helper to add options to dropdown.
|
|
addOption(selectbox, text, value) {
|
|
const optn = document.createElement("OPTION");
|
|
optn.text = text;
|
|
optn.value = value;
|
|
selectbox.options.add(optn);
|
|
},
|
|
|
|
/* ------^-------
|
|
* /MISC
|
|
* ==============
|
|
*/
|
|
};
|
|
|
|
// Set up translations
|
|
const LINGUAS = ["cs", "de", "el", "es", "fr", "ja", "ko", "nl", "pl", "pt_BR", "ru", "sv", "tr", "zh_CN", "zh_TW"];
|
|
l10n.setup(LINGUAS);
|
|
if (l10n.language === "en" || l10n.dictionary !== undefined) {
|
|
UI.prime();
|
|
} else {
|
|
fetch('app/locale/' + l10n.language + '.json')
|
|
.then((response) => {
|
|
if (!response.ok) {
|
|
throw Error("" + response.status + " " + response.statusText);
|
|
}
|
|
return response.json();
|
|
})
|
|
.then((translations) => { l10n.dictionary = translations; })
|
|
.catch(err => Log.Error("Failed to load translations: " + err))
|
|
.then(UI.prime);
|
|
}
|
|
|
|
export default UI;
|