1294 lines
48 KiB
JavaScript
1294 lines
48 KiB
JavaScript
/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2012 Joel Martin
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* Copyright (C) 2016 Samuel Mannehed for Cendio AB
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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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/* jslint white: false, browser: true */
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/* global window, $D, Util, WebUtil, RFB, Display */
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var UI;
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(function () {
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"use strict";
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// Load supporting scripts
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window.onscriptsload = function () { UI.load(); };
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Util.load_scripts(["webutil.js", "base64.js", "websock.js", "des.js",
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"keysymdef.js", "xtscancodes.js", "keyboard.js",
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"input.js", "display.js", "rfb.js", "keysym.js",
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"inflator.js"]);
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UI = {
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rfb_state: 'loaded',
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resizeTimeout: null,
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popupStatusTimeout: null,
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hideKeyboardTimeout: null,
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settingsOpen: false,
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connSettingsOpen: false,
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clipboardOpen: false,
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keyboardVisible: false,
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extraKeysVisible: false,
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isTouchDevice: false,
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isSafari: false,
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rememberedClipSetting: null,
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lastKeyboardinput: null,
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defaultKeyboardinputLen: 100,
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ctrlOn: false,
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altOn: false,
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// Setup rfb object, load settings from browser storage, then call
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// UI.init to setup the UI/menus
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load: function(callback) {
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WebUtil.initSettings(UI.start, callback);
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},
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// Render default UI and initialize settings menu
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start: function(callback) {
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UI.isTouchDevice = 'ontouchstart' in document.documentElement;
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// Stylesheet selection dropdown
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var sheet = WebUtil.selectStylesheet();
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var sheets = WebUtil.getStylesheets();
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var i;
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for (i = 0; i < sheets.length; i += 1) {
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UI.addOption($D('noVNC_setting_stylesheet'),sheets[i].title, sheets[i].title);
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}
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// Logging selection dropdown
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var llevels = ['error', 'warn', 'info', 'debug'];
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for (i = 0; i < llevels.length; i += 1) {
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UI.addOption($D('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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WebUtil.init_logging(UI.getSetting('logging'));
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UI.initSetting('stylesheet', 'default');
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WebUtil.selectStylesheet(null);
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// call twice to get around webkit bug
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WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
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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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var 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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}
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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('password', '');
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UI.initSetting('encrypt', (window.location.protocol === "https:"));
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UI.initSetting('true_color', true);
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UI.initSetting('cursor', !UI.isTouchDevice);
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UI.initSetting('resize', 'off');
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UI.initSetting('shared', true);
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UI.initSetting('view_only', false);
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UI.initSetting('path', 'websockify');
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UI.initSetting('repeaterID', '');
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UI.initSetting('token', '');
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var 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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}
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UI.updateVisualState();
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$D('noVNC_setting_host').focus();
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// Show mouse selector buttons on touch screen devices
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if (UI.isTouchDevice) {
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// Show mobile buttons
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$D('noVNC_mobile_buttons').style.display = "inline";
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UI.setMouseButton();
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// Remove the address bar
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setTimeout(function() { window.scrollTo(0, 1); }, 100);
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UI.forceSetting('clip', true);
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} else {
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UI.initSetting('clip', false);
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}
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UI.setViewClip();
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UI.setBarPosition();
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Util.addEvent(window, 'resize', function () {
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UI.applyResizeMode();
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UI.setViewClip();
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UI.updateViewDrag();
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UI.setBarPosition();
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} );
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UI.isSafari = (navigator.userAgent.indexOf('Safari') != -1 &&
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navigator.userAgent.indexOf('Chrome') == -1);
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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 (!UI.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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$D('noVNC_fullscreen_button').style.display = "inline";
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Util.addEvent(window, 'fullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'mozfullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'webkitfullscreenchange', UI.updateFullscreenButton);
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Util.addEvent(window, 'msfullscreenchange', UI.updateFullscreenButton);
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}
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Util.addEvent(window, 'load', UI.keyboardinputReset);
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// While connected we want to display a confirmation dialogue
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// if the user tries to leave the page
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Util.addEvent(window, 'beforeunload', function (e) {
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if (UI.rfb && UI.rfb_state === 'normal') {
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var msg = "You are currently connected.";
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e.returnValue = msg;
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return msg;
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} else {
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return void 0; // To prevent the dialogue when disconnected
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}
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});
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// Show description by default when hosted at for kanaka.github.com
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if (location.host === "kanaka.github.io") {
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// Open the description dialog
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$D('noVNC_description').style.display = "block";
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} else {
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// Show the connect panel on first load unless autoconnecting
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if (autoconnect === UI.connSettingsOpen) {
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UI.toggleConnectPanel();
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}
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}
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// Add mouse event click/focus/blur event handlers to the UI
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UI.addMouseHandlers();
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if (typeof callback === "function") {
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callback(UI.rfb);
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}
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},
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initRFB: function() {
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try {
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UI.rfb = new RFB({'target': $D('noVNC_canvas'),
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'onUpdateState': UI.updateState,
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'onXvpInit': UI.updateXvpButton,
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'onClipboard': UI.clipboardReceive,
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'onFBUComplete': UI.initialResize,
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'onFBResize': UI.updateViewDrag,
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'onDesktopName': UI.updateDocumentTitle});
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return true;
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} catch (exc) {
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UI.updateState(null, 'fatal', null, 'Unable to create RFB client -- ' + exc);
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return false;
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}
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},
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addMouseHandlers: function() {
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// Setup interface handlers that can't be inline
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$D("noVNC_view_drag_button").onclick = UI.toggleViewDrag;
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$D("noVNC_mouse_button0").onclick = function () { UI.setMouseButton(1); };
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$D("noVNC_mouse_button1").onclick = function () { UI.setMouseButton(2); };
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$D("noVNC_mouse_button2").onclick = function () { UI.setMouseButton(4); };
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$D("noVNC_mouse_button4").onclick = function () { UI.setMouseButton(0); };
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$D("noVNC_keyboard_button").onclick = UI.showKeyboard;
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$D("noVNC_keyboardinput").oninput = UI.keyInput;
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$D("noVNC_keyboardinput").onblur = UI.hideKeyboard;
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$D("noVNC_keyboardinput").onsubmit = function () { return false; };
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$D("noVNC_toggleExtraKeys_button").onclick = UI.toggleExtraKeys;
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$D("noVNC_toggleCtrl_button").onclick = UI.toggleCtrl;
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$D("noVNC_toggleAlt_button").onclick = UI.toggleAlt;
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$D("noVNC_sendTab_button").onclick = UI.sendTab;
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$D("noVNC_sendEsc_button").onclick = UI.sendEsc;
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$D("noVNC_sendCtrlAltDel_button").onclick = UI.sendCtrlAltDel;
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$D("noVNC_xvpShutdown_button").onclick = function() { UI.rfb.xvpShutdown(); },
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$D("noVNC_xvpReboot_button").onclick = function() { UI.rfb.xvpReboot(); },
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$D("noVNC_xvpReset_button").onclick = function() { UI.rfb.xvpReset(); },
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$D("noVNC_status").onclick = UI.popupStatus;
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$D("noVNC_popup_status").onclick = UI.closePopup;
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$D("noVNC_toggleXvp_button").onclick = UI.toggleXvpPanel;
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$D("noVNC_clipboard_button").onclick = UI.toggleClipboardPanel;
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$D("noVNC_fullscreen_button").onclick = UI.toggleFullscreen;
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$D("noVNC_settings_button").onclick = UI.toggleSettingsPanel;
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$D("noVNC_connectPanel_button").onclick = UI.toggleConnectPanel;
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$D("noVNC_disconnect_button").onclick = UI.disconnect;
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$D("noVNC_description_button").onclick = UI.toggleConnectPanel;
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$D("noVNC_clipboard_text").onfocus = UI.displayBlur;
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$D("noVNC_clipboard_text").onblur = UI.displayFocus;
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$D("noVNC_clipboard_text").onchange = UI.clipboardSend;
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$D("noVNC_clipboard_clear_button").onclick = UI.clipboardClear;
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$D("noVNC_settings_menu").onmouseover = UI.displayBlur;
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$D("noVNC_settings_menu").onmouseover = UI.displayFocus;
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$D("noVNC_settings_apply").onclick = UI.settingsApply;
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$D("noVNC_connect_button").onclick = UI.connect;
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$D("noVNC_setting_resize").onchange = UI.enableDisableViewClip;
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},
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/* ------^-------
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* /INIT
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* ==============
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* VISUAL
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* ------v------*/
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updateState: function(rfb, state, oldstate, msg) {
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UI.rfb_state = state;
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var klass;
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switch (state) {
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case 'failed':
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case 'fatal':
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klass = "noVNC_status_error";
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break;
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case 'normal':
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klass = "noVNC_status_normal";
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break;
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case 'disconnected':
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$D('noVNC_logo').style.display = "block";
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$D('noVNC_screen').style.display = "none";
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/* falls through */
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case 'loaded':
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klass = "noVNC_status_normal";
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break;
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case 'password':
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UI.toggleConnectPanel();
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$D('noVNC_connect_button').value = "Send Password";
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$D('noVNC_connect_button').onclick = UI.setPassword;
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$D('noVNC_setting_password').focus();
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klass = "noVNC_status_warn";
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break;
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default:
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klass = "noVNC_status_warn";
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break;
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}
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if (typeof(msg) !== 'undefined') {
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$D('noVNC_control_bar').setAttribute("class", klass);
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$D('noVNC_status').innerHTML = msg;
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}
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UI.updateVisualState();
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},
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// Disable/enable controls depending on connection state
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updateVisualState: function() {
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var connected = UI.rfb && UI.rfb_state === 'normal';
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//Util.Debug(">> updateVisualState");
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$D('noVNC_setting_encrypt').disabled = connected;
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$D('noVNC_setting_true_color').disabled = connected;
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if (Util.browserSupportsCursorURIs()) {
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$D('noVNC_setting_cursor').disabled = connected;
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} else {
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UI.updateSetting('cursor', !UI.isTouchDevice);
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$D('noVNC_setting_cursor').disabled = true;
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}
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UI.enableDisableViewClip();
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$D('noVNC_setting_resize').disabled = connected;
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$D('noVNC_setting_shared').disabled = connected;
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$D('noVNC_setting_view_only').disabled = connected;
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$D('noVNC_setting_path').disabled = connected;
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$D('noVNC_setting_repeaterID').disabled = connected;
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if (connected) {
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UI.setViewClip();
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UI.setMouseButton(1);
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$D('noVNC_clipboard_button').style.display = "inline";
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$D('noVNC_keyboard_button').style.display = "inline";
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$D('noVNC_extra_keys').style.display = "";
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$D('noVNC_sendCtrlAltDel_button').style.display = "inline";
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} else {
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UI.setMouseButton();
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$D('noVNC_clipboard_button').style.display = "none";
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$D('noVNC_keyboard_button').style.display = "none";
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$D('noVNC_extra_keys').style.display = "none";
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$D('noVNC_sendCtrlAltDel_button').style.display = "none";
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UI.updateXvpButton(0);
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}
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// State change disables viewport dragging.
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// It is enabled (toggled) by direct click on the button
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UI.updateViewDrag(false);
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switch (UI.rfb_state) {
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case 'fatal':
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case 'failed':
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case 'disconnected':
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$D('noVNC_connectPanel_button').style.display = "";
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$D('noVNC_disconnect_button').style.display = "none";
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UI.connSettingsOpen = false;
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UI.toggleConnectPanel();
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break;
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case 'loaded':
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$D('noVNC_connectPanel_button').style.display = "";
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$D('noVNC_disconnect_button').style.display = "none";
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break;
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default:
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$D('noVNC_connectPanel_button').style.display = "none";
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$D('noVNC_disconnect_button').style.display = "";
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break;
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}
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//Util.Debug("<< updateVisualState");
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},
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popupStatus: function(text) {
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var psp = $D('noVNC_popup_status');
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clearTimeout(UI.popupStatusTimeout);
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if (typeof text === 'string') {
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psp.innerHTML = text;
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} else {
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psp.innerHTML = $D('noVNC_status').innerHTML;
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}
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psp.style.display = "block";
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psp.style.left = window.innerWidth/2 -
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parseInt(window.getComputedStyle(psp).width)/2 -30 + "px";
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// Show the popup for a maximum of 1.5 seconds
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UI.popupStatusTimeout = setTimeout(UI.closePopup, 1500);
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},
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closePopup: function() {
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clearTimeout(UI.popupStatusTimeout);
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$D('noVNC_popup_status').style.display = "none";
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},
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/* ------^-------
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* /VISUAL
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* ==============
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* SETTINGS
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* ------v------*/
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// Initial page load read/initialization of settings
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initSetting: function(name, defVal) {
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// Check Query string followed by cookie
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var val = WebUtil.getConfigVar(name);
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if (val === null) {
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val = WebUtil.readSetting(name, defVal);
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}
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UI.updateSetting(name, val);
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return val;
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},
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// Update cookie and form control setting. If value is not set, then
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// updates from control to current cookie setting.
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updateSetting: function(name, value) {
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// Save the cookie for this session
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if (typeof value !== 'undefined') {
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WebUtil.writeSetting(name, value);
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}
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// Update the settings control
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value = UI.getSetting(name);
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var ctrl = $D('noVNC_setting_' + name);
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if (ctrl.type === 'checkbox') {
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ctrl.checked = value;
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} else if (typeof ctrl.options !== 'undefined') {
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for (var i = 0; i < ctrl.options.length; i += 1) {
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if (ctrl.options[i].value === value) {
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ctrl.selectedIndex = i;
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break;
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}
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}
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} else {
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/*Weird IE9 error leads to 'null' appearring
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in textboxes instead of ''.*/
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if (value === null) {
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value = "";
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}
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ctrl.value = value;
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}
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},
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// Save control setting to cookie
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saveSetting: function(name) {
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var val, ctrl = $D('noVNC_setting_' + name);
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if (ctrl.type === 'checkbox') {
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val = ctrl.checked;
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} else if (typeof ctrl.options !== 'undefined') {
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val = ctrl.options[ctrl.selectedIndex].value;
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} else {
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val = ctrl.value;
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}
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WebUtil.writeSetting(name, val);
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//Util.Debug("Setting saved '" + name + "=" + val + "'");
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return val;
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},
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// Force a setting to be a certain value
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forceSetting: function(name, val) {
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UI.updateSetting(name, val);
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return val;
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},
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// Read form control compatible setting from cookie
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getSetting: function(name) {
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var ctrl = $D('noVNC_setting_' + name);
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var val = WebUtil.readSetting(name);
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if (typeof val !== 'undefined' && val !== null && ctrl.type === 'checkbox') {
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if (val.toString().toLowerCase() in {'0':1, 'no':1, 'false':1}) {
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val = false;
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} else {
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val = true;
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}
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}
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return val;
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},
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// Save/apply settings when 'Apply' button is pressed
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settingsApply: function() {
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//Util.Debug(">> settingsApply");
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UI.saveSetting('encrypt');
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UI.saveSetting('true_color');
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if (Util.browserSupportsCursorURIs()) {
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UI.saveSetting('cursor');
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}
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UI.saveSetting('resize');
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if (UI.getSetting('resize') === 'downscale' || UI.getSetting('resize') === 'scale') {
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UI.forceSetting('clip', false);
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}
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UI.saveSetting('clip');
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UI.saveSetting('shared');
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UI.saveSetting('view_only');
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UI.saveSetting('path');
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UI.saveSetting('repeaterID');
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UI.saveSetting('stylesheet');
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UI.saveSetting('logging');
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// Settings with immediate (non-connected related) effect
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WebUtil.selectStylesheet(UI.getSetting('stylesheet'));
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WebUtil.init_logging(UI.getSetting('logging'));
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UI.setViewClip();
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UI.updateViewDrag();
|
|
//Util.Debug("<< settingsApply");
|
|
},
|
|
|
|
// Open menu
|
|
openSettingsMenu: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
$D('noVNC_settings').style.display = "block";
|
|
$D('noVNC_settings_button').className = "noVNC_status_button_selected";
|
|
UI.settingsOpen = true;
|
|
},
|
|
|
|
// Close menu (without applying settings)
|
|
closeSettingsMenu: function() {
|
|
$D('noVNC_settings').style.display = "none";
|
|
$D('noVNC_settings_button').className = "noVNC_status_button";
|
|
UI.settingsOpen = false;
|
|
},
|
|
|
|
// Toggle the settings menu:
|
|
// On open, settings are refreshed from saved cookies.
|
|
// On close, settings are applied
|
|
toggleSettingsPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
if (UI.settingsOpen) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
} else {
|
|
UI.updateSetting('encrypt');
|
|
UI.updateSetting('true_color');
|
|
if (Util.browserSupportsCursorURIs()) {
|
|
UI.updateSetting('cursor');
|
|
} else {
|
|
UI.updateSetting('cursor', !UI.isTouchDevice);
|
|
$D('noVNC_setting_cursor').disabled = true;
|
|
}
|
|
UI.updateSetting('clip');
|
|
UI.updateSetting('resize');
|
|
UI.updateSetting('shared');
|
|
UI.updateSetting('view_only');
|
|
UI.updateSetting('path');
|
|
UI.updateSetting('repeaterID');
|
|
UI.updateSetting('stylesheet');
|
|
UI.updateSetting('logging');
|
|
|
|
UI.openSettingsMenu();
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /SETTINGS
|
|
* ==============
|
|
* XVP
|
|
* ------v------*/
|
|
|
|
// Show the XVP panel
|
|
toggleXvpPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close settings if open
|
|
if (UI.settingsOpen === true) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Toggle XVP panel
|
|
if (UI.xvpOpen === true) {
|
|
$D('noVNC_xvp').style.display = "none";
|
|
$D('noVNC_toggleXvp_button').className = "noVNC_status_button";
|
|
UI.xvpOpen = false;
|
|
} else {
|
|
$D('noVNC_xvp').style.display = "block";
|
|
$D('noVNC_toggleXvp_button').className = "noVNC_status_button_selected";
|
|
UI.xvpOpen = true;
|
|
}
|
|
},
|
|
|
|
// Disable/enable XVP button
|
|
updateXvpButton: function(ver) {
|
|
if (ver >= 1) {
|
|
$D('noVNC_toggleXvp_button').style.display = 'inline';
|
|
} else {
|
|
$D('noVNC_toggleXvp_button').style.display = 'none';
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /XVP
|
|
* ==============
|
|
* CLIPBOARD
|
|
* ------v------*/
|
|
|
|
// Show the clipboard panel
|
|
toggleClipboardPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close settings if open
|
|
if (UI.settingsOpen === true) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
}
|
|
// Close connection settings if open
|
|
if (UI.connSettingsOpen === true) {
|
|
UI.toggleConnectPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
// Toggle Clipboard Panel
|
|
if (UI.clipboardOpen === true) {
|
|
$D('noVNC_clipboard').style.display = "none";
|
|
$D('noVNC_clipboard_button').className = "noVNC_status_button";
|
|
UI.clipboardOpen = false;
|
|
} else {
|
|
$D('noVNC_clipboard').style.display = "block";
|
|
$D('noVNC_clipboard_button').className = "noVNC_status_button_selected";
|
|
UI.clipboardOpen = true;
|
|
}
|
|
},
|
|
|
|
clipboardReceive: function(rfb, text) {
|
|
Util.Debug(">> UI.clipboardReceive: " + text.substr(0,40) + "...");
|
|
$D('noVNC_clipboard_text').value = text;
|
|
Util.Debug("<< UI.clipboardReceive");
|
|
},
|
|
|
|
clipboardClear: function() {
|
|
$D('noVNC_clipboard_text').value = "";
|
|
UI.rfb.clipboardPasteFrom("");
|
|
},
|
|
|
|
clipboardSend: function() {
|
|
var text = $D('noVNC_clipboard_text').value;
|
|
Util.Debug(">> UI.clipboardSend: " + text.substr(0,40) + "...");
|
|
UI.rfb.clipboardPasteFrom(text);
|
|
Util.Debug("<< UI.clipboardSend");
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CLIPBOARD
|
|
* ==============
|
|
* CONNECTION
|
|
* ------v------*/
|
|
|
|
// Show the connection settings panel/menu
|
|
toggleConnectPanel: function() {
|
|
// Close the description panel
|
|
$D('noVNC_description').style.display = "none";
|
|
// Close connection settings if open
|
|
if (UI.settingsOpen === true) {
|
|
UI.settingsApply();
|
|
UI.closeSettingsMenu();
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button";
|
|
}
|
|
// Close clipboard panel if open
|
|
if (UI.clipboardOpen === true) {
|
|
UI.toggleClipboardPanel();
|
|
}
|
|
// Close XVP panel if open
|
|
if (UI.xvpOpen === true) {
|
|
UI.toggleXvpPanel();
|
|
}
|
|
|
|
// Toggle Connection Panel
|
|
if (UI.connSettingsOpen === true) {
|
|
$D('noVNC_controls').style.display = "none";
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button";
|
|
UI.connSettingsOpen = false;
|
|
UI.saveSetting('host');
|
|
UI.saveSetting('port');
|
|
UI.saveSetting('token');
|
|
//UI.saveSetting('password');
|
|
} else {
|
|
$D('noVNC_controls').style.display = "block";
|
|
$D('noVNC_connectPanel_button').className = "noVNC_status_button_selected";
|
|
UI.connSettingsOpen = true;
|
|
$D('noVNC_setting_host').focus();
|
|
}
|
|
},
|
|
|
|
connect: function() {
|
|
UI.closeSettingsMenu();
|
|
UI.toggleConnectPanel();
|
|
|
|
var host = $D('noVNC_setting_host').value;
|
|
var port = $D('noVNC_setting_port').value;
|
|
var password = $D('noVNC_setting_password').value;
|
|
var token = $D('noVNC_setting_token').value;
|
|
var path = $D('noVNC_setting_path').value;
|
|
|
|
//if token is in path then ignore the new token variable
|
|
if (token) {
|
|
path = WebUtil.injectParamIfMissing(path, "token", token);
|
|
}
|
|
|
|
if ((!host) || (!port)) {
|
|
throw new Error("Must set host and port");
|
|
}
|
|
|
|
if (!UI.initRFB()) return;
|
|
|
|
UI.rfb.set_encrypt(UI.getSetting('encrypt'));
|
|
UI.rfb.set_true_color(UI.getSetting('true_color'));
|
|
UI.rfb.set_local_cursor(UI.getSetting('cursor'));
|
|
UI.rfb.set_shared(UI.getSetting('shared'));
|
|
UI.rfb.set_view_only(UI.getSetting('view_only'));
|
|
UI.rfb.set_repeaterID(UI.getSetting('repeaterID'));
|
|
|
|
UI.rfb.connect(host, port, password, path);
|
|
|
|
//Close dialog.
|
|
setTimeout(UI.setBarPosition, 100);
|
|
$D('noVNC_logo').style.display = "none";
|
|
$D('noVNC_screen').style.display = "inline";
|
|
},
|
|
|
|
disconnect: function() {
|
|
UI.closeSettingsMenu();
|
|
UI.rfb.disconnect();
|
|
|
|
// Restore the callback used for initial resize
|
|
UI.rfb.set_onFBUComplete(UI.initialResize);
|
|
|
|
$D('noVNC_logo').style.display = "block";
|
|
$D('noVNC_screen').style.display = "none";
|
|
|
|
// Don't display the connection settings until we're actually disconnected
|
|
},
|
|
|
|
setPassword: function() {
|
|
UI.rfb.sendPassword($D('noVNC_setting_password').value);
|
|
//Reset connect button.
|
|
$D('noVNC_connect_button').value = "Connect";
|
|
$D('noVNC_connect_button').onclick = UI.connect;
|
|
//Hide connection panel.
|
|
UI.toggleConnectPanel();
|
|
return false;
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CONNECTION
|
|
* ==============
|
|
* FULLSCREEN
|
|
* ------v------*/
|
|
|
|
toggleFullscreen: function() {
|
|
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.enableDisableViewClip();
|
|
UI.updateFullscreenButton();
|
|
},
|
|
|
|
updateFullscreenButton: function() {
|
|
if (document.fullscreenElement || // alternative standard method
|
|
document.mozFullScreenElement || // currently working methods
|
|
document.webkitFullscreenElement ||
|
|
document.msFullscreenElement ) {
|
|
$D('noVNC_fullscreen_button').className = "noVNC_status_button_selected";
|
|
} else {
|
|
$D('noVNC_fullscreen_button').className = "noVNC_status_button";
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /FULLSCREEN
|
|
* ==============
|
|
* RESIZE
|
|
* ------v------*/
|
|
|
|
// Apply remote resizing or local scaling
|
|
applyResizeMode: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
var screen = UI.screenSize();
|
|
|
|
if (screen && UI.rfb_state === 'normal' && UI.rfb.get_display()) {
|
|
|
|
var display = UI.rfb.get_display();
|
|
var resizeMode = UI.getSetting('resize');
|
|
|
|
if (resizeMode === 'remote') {
|
|
|
|
// Request changing the resolution of the remote display to
|
|
// the size of the local browser viewport.
|
|
|
|
// In order to not send multiple requests before the browser-resize
|
|
// is finished we wait 0.5 seconds before sending the request.
|
|
clearTimeout(UI.resizeTimeout);
|
|
UI.resizeTimeout = setTimeout(function(){
|
|
|
|
// Limit the viewport to the size of the browser window
|
|
display.set_maxWidth(screen.w);
|
|
display.set_maxHeight(screen.h);
|
|
|
|
Util.Debug('Attempting requestDesktopSize(' +
|
|
screen.w + ', ' + screen.h + ')');
|
|
|
|
// Request a remote size covering the viewport
|
|
UI.rfb.requestDesktopSize(screen.w, screen.h);
|
|
}, 500);
|
|
|
|
} else if (resizeMode === 'scale' || resizeMode === 'downscale') {
|
|
var downscaleOnly = resizeMode === 'downscale';
|
|
var scaleRatio = display.autoscale(screen.w, screen.h, downscaleOnly);
|
|
UI.rfb.get_mouse().set_scale(scaleRatio);
|
|
Util.Debug('Scaling by ' + UI.rfb.get_mouse().get_scale());
|
|
}
|
|
}
|
|
},
|
|
|
|
// The screen is always the same size as the available viewport
|
|
// in the browser window minus the height of the control bar
|
|
screenSize: function() {
|
|
var screen = $D('noVNC_screen');
|
|
|
|
// Hide the scrollbars until the size is calculated
|
|
screen.style.overflow = "hidden";
|
|
|
|
var pos = Util.getPosition(screen);
|
|
var w = pos.width;
|
|
var h = pos.height;
|
|
|
|
screen.style.overflow = "visible";
|
|
|
|
if (isNaN(w) || isNaN(h)) {
|
|
return false;
|
|
} else {
|
|
return {w: w, h: h};
|
|
}
|
|
},
|
|
|
|
// Normally we only apply the current resize mode after a window resize
|
|
// event. This means that when a new connection is opened, there is no
|
|
// resize mode active.
|
|
// We have to wait until the first FBU because this is where the client
|
|
// will find the supported encodings of the server. Some calls later in
|
|
// the chain is dependant on knowing the server-capabilities.
|
|
initialResize: function(rfb, fbu) {
|
|
UI.applyResizeMode();
|
|
// After doing this once, we remove the callback.
|
|
UI.rfb.set_onFBUComplete(function() { });
|
|
},
|
|
|
|
/* ------^-------
|
|
* /RESIZE
|
|
* ==============
|
|
* CLIPPING
|
|
* ------v------*/
|
|
|
|
// Set and configure viewport clipping
|
|
setViewClip: function(clip) {
|
|
var display;
|
|
if (UI.rfb) {
|
|
display = UI.rfb.get_display();
|
|
} else {
|
|
UI.forceSetting('clip', clip);
|
|
return;
|
|
}
|
|
|
|
var cur_clip = display.get_viewport();
|
|
|
|
if (typeof(clip) !== 'boolean') {
|
|
// Use current setting
|
|
clip = UI.getSetting('clip');
|
|
}
|
|
|
|
if (clip && !cur_clip) {
|
|
// Turn clipping on
|
|
UI.updateSetting('clip', true);
|
|
} else if (!clip && cur_clip) {
|
|
// Turn clipping off
|
|
UI.updateSetting('clip', false);
|
|
display.set_viewport(false);
|
|
// Disable max dimensions
|
|
display.set_maxWidth(0);
|
|
display.set_maxHeight(0);
|
|
display.viewportChangeSize();
|
|
}
|
|
if (UI.getSetting('clip')) {
|
|
// If clipping, update clipping settings
|
|
display.set_viewport(true);
|
|
|
|
var size = UI.screenSize();
|
|
if (size) {
|
|
display.set_maxWidth(size.w);
|
|
display.set_maxHeight(size.h);
|
|
|
|
// Hide potential scrollbars that can skew the position
|
|
$D('noVNC_screen').style.overflow = "hidden";
|
|
|
|
// The x position marks the left margin of the canvas,
|
|
// remove the margin from both sides to keep it centered
|
|
var new_w = size.w - (2 * Util.getPosition($D('noVNC_canvas')).x);
|
|
|
|
$D('noVNC_screen').style.overflow = "visible";
|
|
|
|
display.viewportChangeSize(new_w, size.h);
|
|
}
|
|
}
|
|
},
|
|
|
|
// Handle special cases where clipping is forced on/off or locked
|
|
enableDisableViewClip: function() {
|
|
var resizeSetting = $D('noVNC_setting_resize');
|
|
var connected = UI.rfb && UI.rfb_state === 'normal';
|
|
|
|
if (UI.isSafari) {
|
|
// Safari auto-hides the scrollbars which makes them
|
|
// impossible to use in most cases
|
|
UI.setViewClip(true);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (resizeSetting.value === 'downscale' || resizeSetting.value === 'scale') {
|
|
// Disable clipping if we are scaling
|
|
UI.setViewClip(false);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (document.msFullscreenElement) {
|
|
// The browser is IE and we are in fullscreen mode.
|
|
// - We need to force clipping while in fullscreen since
|
|
// scrollbars doesn't work.
|
|
UI.popupStatus("Forcing clipping mode since scrollbars aren't supported by IE in fullscreen");
|
|
UI.rememberedClipSetting = UI.getSetting('clip');
|
|
UI.setViewClip(true);
|
|
$D('noVNC_setting_clip').disabled = true;
|
|
} else if (document.body.msRequestFullscreen && UI.rememberedClip !== null) {
|
|
// Restore view clip to what it was before fullscreen on IE
|
|
UI.setViewClip(UI.rememberedClipSetting);
|
|
$D('noVNC_setting_clip').disabled = connected || UI.isTouchDevice;
|
|
} else {
|
|
$D('noVNC_setting_clip').disabled = connected || UI.isTouchDevice;
|
|
if (UI.isTouchDevice) {
|
|
UI.setViewClip(true);
|
|
}
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /CLIPPING
|
|
* ==============
|
|
* VIEWDRAG
|
|
* ------v------*/
|
|
|
|
// Update the viewport drag state
|
|
updateViewDrag: function(drag) {
|
|
if (!UI.rfb) return;
|
|
|
|
var viewDragButton = $D('noVNC_view_drag_button');
|
|
|
|
// Check if viewport drag is possible. It is only possible
|
|
// if the remote display is clipping the client display.
|
|
if (UI.rfb_state === 'normal' &&
|
|
UI.rfb.get_display().get_viewport() &&
|
|
UI.rfb.get_display().clippingDisplay()) {
|
|
|
|
viewDragButton.style.display = "inline";
|
|
viewDragButton.disabled = false;
|
|
|
|
} else {
|
|
// The size of the remote display is the same or smaller
|
|
// than the client display. Make sure viewport drag isn't
|
|
// active when it can't be used.
|
|
if (UI.rfb.get_viewportDrag) {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
}
|
|
|
|
// The button is disabled instead of hidden on touch devices
|
|
if (UI.rfb_state === 'normal' && UI.isTouchDevice) {
|
|
viewDragButton.style.display = "inline";
|
|
viewDragButton.disabled = true;
|
|
} else {
|
|
viewDragButton.style.display = "none";
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (typeof(drag) !== "undefined" &&
|
|
typeof(drag) !== "object") {
|
|
if (drag) {
|
|
viewDragButton.className = "noVNC_status_button_selected";
|
|
UI.rfb.set_viewportDrag(true);
|
|
} else {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
}
|
|
}
|
|
},
|
|
|
|
toggleViewDrag: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
var viewDragButton = $D('noVNC_view_drag_button');
|
|
if (UI.rfb.get_viewportDrag()) {
|
|
viewDragButton.className = "noVNC_status_button";
|
|
UI.rfb.set_viewportDrag(false);
|
|
} else {
|
|
viewDragButton.className = "noVNC_status_button_selected";
|
|
UI.rfb.set_viewportDrag(true);
|
|
}
|
|
},
|
|
|
|
/* ------^-------
|
|
* /VIEWDRAG
|
|
* ==============
|
|
* KEYBOARD
|
|
* ------v------*/
|
|
|
|
// On touch devices, show the OS keyboard
|
|
showKeyboard: function() {
|
|
var kbi = $D('noVNC_keyboardinput');
|
|
var skb = $D('noVNC_keyboard_button');
|
|
var l = kbi.value.length;
|
|
if(UI.keyboardVisible === false) {
|
|
kbi.focus();
|
|
try { kbi.setSelectionRange(l, l); } // Move the caret to the end
|
|
catch (err) {} // setSelectionRange is undefined in Google Chrome
|
|
UI.keyboardVisible = true;
|
|
skb.className = "noVNC_status_button_selected";
|
|
} else if(UI.keyboardVisible === true) {
|
|
kbi.blur();
|
|
skb.className = "noVNC_status_button";
|
|
UI.keyboardVisible = false;
|
|
}
|
|
},
|
|
|
|
hideKeyboard: function() {
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button";
|
|
//Weird bug in iOS if you change keyboardVisible
|
|
//here it does not actually occur so next time
|
|
//you click keyboard icon it doesnt work.
|
|
UI.hideKeyboardTimeout = setTimeout(function() {
|
|
UI.keyboardVisible = false;
|
|
},100);
|
|
},
|
|
|
|
keepKeyboard: function() {
|
|
clearTimeout(UI.hideKeyboardTimeout);
|
|
if(UI.keyboardVisible === true) {
|
|
$D('noVNC_keyboardinput').focus();
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button_selected";
|
|
} else if(UI.keyboardVisible === false) {
|
|
$D('noVNC_keyboardinput').blur();
|
|
$D('noVNC_keyboard_button').className = "noVNC_status_button";
|
|
}
|
|
},
|
|
|
|
keyboardinputReset: function() {
|
|
var kbi = $D('noVNC_keyboardinput');
|
|
kbi.value = new Array(UI.defaultKeyboardinputLen).join("_");
|
|
UI.lastKeyboardinput = kbi.value;
|
|
},
|
|
|
|
// 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: function(event) {
|
|
|
|
if (!UI.rfb) return;
|
|
|
|
var newValue = event.target.value;
|
|
|
|
if (!UI.lastKeyboardinput) {
|
|
UI.keyboardinputReset();
|
|
}
|
|
var oldValue = UI.lastKeyboardinput;
|
|
|
|
var 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;
|
|
}
|
|
var oldLen = oldValue.length;
|
|
|
|
var backspaces;
|
|
var inputs = newLen - oldLen;
|
|
if (inputs < 0) {
|
|
backspaces = -inputs;
|
|
} else {
|
|
backspaces = 0;
|
|
}
|
|
|
|
// Compare the old string with the new to account for
|
|
// text-corrections or other input that modify existing text
|
|
var i;
|
|
for (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 (i = 0; i < backspaces; i++) {
|
|
UI.rfb.sendKey(XK_BackSpace);
|
|
}
|
|
for (i = newLen - inputs; i < newLen; i++) {
|
|
UI.rfb.sendKey(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(UI.keepKeyboard, 0);
|
|
} else {
|
|
UI.lastKeyboardinput = newValue;
|
|
}
|
|
},
|
|
|
|
toggleExtraKeys: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.extraKeysVisible === false) {
|
|
$D('noVNC_toggleCtrl_button').style.display = "inline";
|
|
$D('noVNC_toggleAlt_button').style.display = "inline";
|
|
$D('noVNC_sendTab_button').style.display = "inline";
|
|
$D('noVNC_sendEsc_button').style.display = "inline";
|
|
$D('noVNC_toggleExtraKeys_button').className = "noVNC_status_button_selected";
|
|
UI.extraKeysVisible = true;
|
|
} else if(UI.extraKeysVisible === true) {
|
|
$D('noVNC_toggleCtrl_button').style.display = "";
|
|
$D('noVNC_toggleAlt_button').style.display = "";
|
|
$D('noVNC_sendTab_button').style.display = "";
|
|
$D('noVNC_sendEsc_button').style.display = "";
|
|
$D('noVNC_toggleExtraKeys_button').className = "noVNC_status_button";
|
|
UI.extraKeysVisible = false;
|
|
}
|
|
},
|
|
|
|
sendEsc: function() {
|
|
UI.keepKeyboard();
|
|
UI.rfb.sendKey(XK_Escape);
|
|
},
|
|
|
|
sendTab: function() {
|
|
UI.keepKeyboard();
|
|
UI.rfb.sendKey(XK_Tab);
|
|
},
|
|
|
|
toggleCtrl: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.ctrlOn === false) {
|
|
UI.rfb.sendKey(XK_Control_L, true);
|
|
$D('noVNC_toggleCtrl_button').className = "noVNC_status_button_selected";
|
|
UI.ctrlOn = true;
|
|
} else if(UI.ctrlOn === true) {
|
|
UI.rfb.sendKey(XK_Control_L, false);
|
|
$D('noVNC_toggleCtrl_button').className = "noVNC_status_button";
|
|
UI.ctrlOn = false;
|
|
}
|
|
},
|
|
|
|
toggleAlt: function() {
|
|
UI.keepKeyboard();
|
|
if(UI.altOn === false) {
|
|
UI.rfb.sendKey(XK_Alt_L, true);
|
|
$D('noVNC_toggleAlt_button').className = "noVNC_status_button_selected";
|
|
UI.altOn = true;
|
|
} else if(UI.altOn === true) {
|
|
UI.rfb.sendKey(XK_Alt_L, false);
|
|
$D('noVNC_toggleAlt_button').className = "noVNC_status_button";
|
|
UI.altOn = false;
|
|
}
|
|
},
|
|
|
|
sendCtrlAltDel: function() {
|
|
UI.rfb.sendCtrlAltDel();
|
|
},
|
|
|
|
/* ------^-------
|
|
* /KEYBOARD
|
|
* ==============
|
|
* MISC
|
|
* ------v------*/
|
|
|
|
setMouseButton: function(num) {
|
|
if (typeof num === 'undefined') {
|
|
// Disable mouse buttons
|
|
num = -1;
|
|
}
|
|
if (UI.rfb) {
|
|
UI.rfb.get_mouse().set_touchButton(num);
|
|
}
|
|
|
|
var blist = [0, 1,2,4];
|
|
for (var b = 0; b < blist.length; b++) {
|
|
var button = $D('noVNC_mouse_button' + blist[b]);
|
|
if (blist[b] === num) {
|
|
button.style.display = "";
|
|
} else {
|
|
button.style.display = "none";
|
|
}
|
|
}
|
|
},
|
|
|
|
displayBlur: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.get_keyboard().set_focused(false);
|
|
UI.rfb.get_mouse().set_focused(false);
|
|
},
|
|
|
|
displayFocus: function() {
|
|
if (!UI.rfb) return;
|
|
|
|
UI.rfb.get_keyboard().set_focused(true);
|
|
UI.rfb.get_mouse().set_focused(true);
|
|
},
|
|
|
|
// Display the desktop name in the document title
|
|
updateDocumentTitle: function(rfb, name) {
|
|
document.title = name + " - noVNC";
|
|
},
|
|
|
|
//Helper to add options to dropdown.
|
|
addOption: function(selectbox, text, value) {
|
|
var optn = document.createElement("OPTION");
|
|
optn.text = text;
|
|
optn.value = value;
|
|
selectbox.options.add(optn);
|
|
},
|
|
|
|
setBarPosition: function() {
|
|
$D('noVNC_control_bar').style.top = (window.pageYOffset) + 'px';
|
|
$D('noVNC_mobile_buttons').style.left = (window.pageXOffset) + 'px';
|
|
|
|
var vncwidth = $D('noVNC_container').style.offsetWidth;
|
|
$D('noVNC_control_bar').style.width = vncwidth + 'px';
|
|
}
|
|
|
|
/* ------^-------
|
|
* /MISC
|
|
* ==============
|
|
*/
|
|
};
|
|
})();
|