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ui.js
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/*
* KasmVNC: HTML5 VNC client
* Copyright (C) 2020 Kasm Technologies
* Copyright (C) 2019 The noVNC Authors
* Licensed under MPL 2.0 (see LICENSE.txt)
*
* See README.md for usage and integration instructions.
*/
window._noVNC_has_module_support = true;
window.addEventListener("load", function() {
if (window._noVNC_has_module_support) return;
var loader = document.createElement("script");
loader.src = "vendor/browser-es-module-loader/dist/browser-es-module-loader.js";
document.head.appendChild(loader);
});
window.updateSetting = (name, value) => {
WebUtil.writeSetting(name, value);
switch (name) {
case "translate_shortcuts":
UI.updateShortcutTranslation();
break;
}
}
import '@interactjs/pointer-events'
import '@interactjs/actions/drag'
import interact from '@interactjs/interact';
import "core-js/stable";
import "regenerator-runtime/runtime";
import * as Log from '../core/util/logging.js';
import _, { l10n } from './localization.js';
import { isTouchDevice, isSafari, hasScrollbarGutter, dragThreshold, supportsBinaryClipboard, isFirefox, isWindows, isIOS, supportsPointerLock }
from '../core/util/browser.js';
import { setCapture, getPointerEvent } from '../core/util/events.js';
import KeyTable from "../core/input/keysym.js";
import keysyms from "../core/input/keysymdef.js";
import Keyboard from "../core/input/keyboard.js";
import RFB from "../core/rfb.js";
import { MouseButtonMapper, XVNC_BUTTONS } from "../core/mousebuttonmapper.js";
import * as WebUtil from "./webutil.js";
const PAGE_TITLE = "KasmVNC";
var currentEventCount = -1;
var idleCounter = 0;
const UI = {
connected: false,
desktopName: "",
statusTimeout: null,
hideKeyboardTimeout: null,
idleControlbarTimeout: null,
closeControlbarTimeout: null,
controlbarGrabbed: false,
controlbarDrag: false,
controlbarMouseDownClientY: 0,
controlbarMouseDownOffsetY: 0,
inhibitReconnect: true,
reconnectCallback: null,
reconnectPassword: null,
monitors: [],
sortedMonitors: [],
selectedMonitor: null,
refreshRotation: 0,
currentDisplay: null,
displayWindows: ['primary'],
supportsBroadcastChannel: (typeof BroadcastChannel !== "undefined"),
prime() {
return WebUtil.initSettings().then(() => {
if (document.readyState === "interactive" || document.readyState === "complete") {
return UI.start();
}
return new Promise((resolve, reject) => {
document.addEventListener('DOMContentLoaded', () => UI.start().then(resolve).catch(reject));
});
});
},
// Render default UI and initialize settings menu
start() {
// If secondary monitor skip init
if (window.location.href.includes("screen.html")) {
return;
}
// Initialize settings then apply quality presents
UI.initSettings();
UI.updateQuality();
// Translate the DOM
l10n.translateDOM();
fetch('./package.json')
.then((response) => {
if (!response.ok) {
throw Error("" + response.status + " " + response.statusText);
}
return response.json();
})
.then((packageInfo) => {
Array.from(document.getElementsByClassName('noVNC_version')).forEach(el => el.innerText = packageInfo.version);
})
.catch((err) => {
Log.Error("Couldn't fetch package.json: " + err);
Array.from(document.getElementsByClassName('noVNC_version_wrapper'))
.concat(Array.from(document.getElementsByClassName('noVNC_version_separator')))
.forEach(el => el.style.display = 'none');
});
// Adapt the interface for touch screen devices
if (isTouchDevice) {
document.documentElement.classList.add("noVNC_touch");
// Remove the address bar
setTimeout(() => window.scrollTo(0, 1), 100);
}
// Restore control bar position
if (WebUtil.readSetting('controlbar_pos') === 'right') {
UI.toggleControlbarSide();
}
UI.initFullscreen();
// Setup event handlers
UI.addKeyboardControlsPanelHandlers();
UI.addControlbarHandlers();
UI.addTouchSpecificHandlers();
UI.addExtraKeysHandlers();
UI.addGamingHandlers();
UI.addMachineHandlers();
UI.addConnectionControlHandlers();
UI.addClipboardHandlers();
UI.addSettingsHandlers();
UI.addDisplaysHandler();
// UI.addMultiMonitorAddHandler();
document.getElementById("noVNC_status")
.addEventListener('click', UI.hideStatus);
UI.openControlbar();
UI.updateVisualState('init');
document.documentElement.classList.remove("noVNC_loading");
let autoconnect = WebUtil.getConfigVar('autoconnect', true);
if (autoconnect === 'true' || autoconnect == '1') {
autoconnect = true;
UI.connect();
} else {
autoconnect = false;
}
window.parent.postMessage({
action: "noVNC_initialized",
value: null
}, "*");
window.addEventListener("message", (e) => {
if (typeof e.data !== "object" || !e.data.action) {
return;
}
if (e.data.action === "show_keyboard_controls") {
UI.showKeyboardControls();
} else if (e.data.action === "hide_keyboard_controls") {
UI.hideKeyboardControls();
}
});
window.addEventListener("unload", (e) => {
if (UI.rfb) {
UI.disconnect();
}
});
return Promise.resolve(UI.rfb);
},
initFullscreen() {
// Only show the button if fullscreen is properly supported
// * Safari doesn't support alphanumerical input while in fullscreen
if (!isSafari() &&
(document.documentElement.requestFullscreen ||
document.documentElement.mozRequestFullScreen ||
document.documentElement.webkitRequestFullscreen ||
document.body.msRequestFullscreen)) {
UI.showControlInput("noVNC_fullscreen_button")
UI.addFullscreenHandlers();
}
},
initSettings() {
// Logging selection dropdown
const llevels = ['error', 'warn', 'info', 'debug'];
for (let i = 0; i < llevels.length; i += 1) {
UI.addOption(document.getElementById('noVNC_setting_logging'), llevels[i], llevels[i]);
}
if ('getScreenDetails' in window) {
document.getElementById('noVNC_auto_placement_option').classList.add("show");
}
const initialAutoPlacementValue = window.localStorage.getItem('autoPlacement')
if (initialAutoPlacementValue === null) {
document.getElementById("noVNC_auto_placement").checked = true
}
// Settings with immediate effects
UI.initSetting('logging', 'warn');
UI.updateLogging();
// Stream Quality Presets
let qualityDropdown = document.getElementById("noVNC_setting_video_quality");
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:0,label:"Static"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:1,label:"Low"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:2,label:"Medium"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:3,label:"High"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:4,label:"Extreme"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:5,label:"Lossless"}))
qualityDropdown.appendChild(Object.assign(document.createElement("option"),{value:10,label:"Custom"}))
// if port == 80 (or 443) then it won't be present and should be
// set manually
let port = window.location.port;
if (!port) {
if (window.location.protocol.substring(0, 5) == 'https') {
port = 443;
} else if (window.location.protocol.substring(0, 4) == 'http') {
port = 80;
}
}
/* Populate the controls if defaults are provided in the URL */
UI.initSetting('host', window.location.hostname);
UI.initSetting('port', port);
UI.initSetting('encrypt', (window.location.protocol === "https:"));
UI.initSetting('view_clip', false);
/* UI.initSetting('resize', 'off'); */
UI.initSetting('quality', 6);
UI.initSetting('dynamic_quality_min', 3);
UI.initSetting('dynamic_quality_max', 9);
UI.initSetting('translate_shortcuts', true);
UI.initSetting('treat_lossless', 7);
UI.initSetting('jpeg_video_quality', 5);
UI.initSetting('webp_video_quality', 5);
UI.initSetting('video_quality', 2);
UI.initSetting('anti_aliasing', 0);
UI.initSetting('video_area', 65);
UI.initSetting('video_time', 5);
UI.initSetting('video_out_time', 3);
UI.initSetting('video_scaling', 2);
UI.initSetting('max_video_resolution_x', 960);
UI.initSetting('max_video_resolution_y', 540);
UI.initSetting('framerate', 30);
UI.initSetting('compression', 2);
UI.initSetting('shared', true);
UI.initSetting('view_only', false);
UI.initSetting('show_dot', false);
UI.initSetting('path', 'websockify');
UI.initSetting('repeaterID', '');
UI.initSetting('reconnect', false);
UI.initSetting('reconnect_delay', 5000);
UI.initSetting('idle_disconnect', 20);
UI.initSetting('prefer_local_cursor', true);
UI.initSetting('toggle_control_panel', false);
UI.initSetting('enable_perf_stats', false);
UI.initSetting('enable_threading', true);
UI.initSetting('virtual_keyboard_visible', false);
UI.initSetting('enable_ime', false);
UI.initSetting('enable_webrtc', false);
UI.initSetting('enable_hidpi', false);
UI.toggleKeyboardControls();
if ((WebUtil.isInsideKasmVDI()) && (! WebUtil.getConfigVar('show_control_bar'))) {
UI.initSetting('clipboard_up', false);
UI.initSetting('clipboard_down', false);
// Get the value sent in via URL parameter, default to off
UI.initSetting('clipboard_seamless', false);
// Kasm workspaces sets to true if it is allowed, but that does not mean it is supported
let clip_s = UI.getSetting('clipboard_seamless');
// Its enabled in Kasm Workspaces, but is it supported by the client
if (clip_s) {
if (isFirefox() || isSafari()) {
UI.forceSetting('clipboard_seamless', false);
}
}
UI.initSetting('enable_webp', false);
UI.initSetting('resize', 'off');
} else {
UI.initSetting('clipboard_up', true);
UI.initSetting('clipboard_down', true);
if (isFirefox() || isSafari()) {
UI.initSetting('clipboard_seamless', false);
} else {
UI.initSetting('clipboard_seamless', true);
}
UI.initSetting('enable_webp', true);
UI.initSetting('resize', 'remote');
}
UI.setupSettingLabels();
UI.updateQuality();
},
initMouseButtonMapper() {
const mouseButtonMapper = new MouseButtonMapper();
const settings = WebUtil.readSetting("mouseButtonMapper");
if (settings) {
mouseButtonMapper.load(settings);
return mouseButtonMapper;
}
mouseButtonMapper.set(0, XVNC_BUTTONS.LEFT_BUTTON);
mouseButtonMapper.set(1, XVNC_BUTTONS.MIDDLE_BUTTON);
mouseButtonMapper.set(2, XVNC_BUTTONS.RIGHT_BUTTON);
mouseButtonMapper.set(3, XVNC_BUTTONS.BACK_BUTTON);
mouseButtonMapper.set(4, XVNC_BUTTONS.FORWARD_BUTTON);
WebUtil.writeSetting("mouseButtonMapper", mouseButtonMapper.dump());
return mouseButtonMapper;
},
// Adds a link to the label elements on the corresponding input elements
setupSettingLabels() {
const labels = document.getElementsByTagName('LABEL');
for (let i = 0; i < labels.length; i++) {
const htmlFor = labels[i].htmlFor;
if (htmlFor != '') {
const elem = document.getElementById(htmlFor);
if (elem) elem.label = labels[i];
} else {
// If 'for' isn't set, use the first input element child
const children = labels[i].children;
for (let j = 0; j < children.length; j++) {
if (children[j].form !== undefined) {
children[j].label = labels[i];
break;
}
}
}
}
},
/* ------^-------
* /INIT
* ==============
* EVENT HANDLERS
* ------v------*/
addKeyboardControlsPanelHandlers() {
// panel dragging
interact(".keyboard-controls").draggable({
allowFrom: ".handle",
listeners: {
move: (e) => {
const target = e.target;
const x = (parseFloat(target.getAttribute("data-x")) || 0) + e.dx;
const y = (parseFloat(target.getAttribute("data-y")) || 0) + e.dy;
target.style.transform = `translate(${x}px, ${y}px)`;
target.setAttribute("data-x", x);
target.setAttribute("data-y", y);
},
},
});
// panel expanding
interact(".keyboard-controls .handle")
.pointerEvents({ holdDuration: 350 })
.on("hold", (e) => {
const buttonsEl = document.querySelector(".keyboard-controls");
const isOpen = buttonsEl.classList.contains("is-open");
buttonsEl.classList.toggle("was-open", isOpen);
buttonsEl.classList.toggle("is-open", !isOpen);
setTimeout(() => buttonsEl.classList.remove("was-open"), 500);
});
// keyboard showing
interact(".keyboard-controls .handle").on("tap", (e) => {
if (e.dt < 150) {
UI.toggleVirtualKeyboard();
}
});
// panel buttons
interact(".keyboard-controls .button.ctrl").on("tap", UI.toggleCtrl);
interact(".keyboard-controls .button.alt").on("tap", UI.toggleAlt);
interact(".keyboard-controls .button.windows").on("tap", UI.toggleWindows);
interact(".keyboard-controls .button.tab").on("tap", UI.sendTab);
interact(".keyboard-controls .button.escape").on("tap", UI.sendEsc);
interact(".keyboard-controls .button.ctrlaltdel").on("tap", UI.sendCtrlAltDel);
},
addControlbarHandlers() {
document.getElementById("noVNC_control_bar")
.addEventListener('mousemove', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('mouseup', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('mousedown', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('keydown', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('mousedown', UI.keepControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('keydown', UI.keepControlbar);
UI.addClickHandle('noVNC_view_drag_button', UI.toggleViewDrag);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('mousedown', UI.controlbarHandleMouseDown);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('mouseup', UI.controlbarHandleMouseUp);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('mousemove', UI.dragControlbarHandle);
// resize events aren't available for elements
window.addEventListener('resize', UI.updateControlbarHandle);
const exps = document.getElementsByClassName("noVNC_expander");
for (let i = 0;i < exps.length;i++) {
exps[i].addEventListener('click', UI.toggleExpander);
}
},
addConnectionControlHandlers() {
UI.addClickHandle('noVNC_disconnect_button', UI.disconnect);
var connect_btn_el = document.getElementById("noVNC_connect_button_2");
if (typeof(connect_btn_el) != 'undefined' && connect_btn_el != null)
{
connect_btn_el.addEventListener('click', UI.connect);
}
},
addTouchSpecificHandlers() {
document.getElementById("noVNC_keyboard_button")
.addEventListener('click', UI.toggleVirtualKeyboard);
document.getElementById("noVNC_keyboard_button")
.addEventListener('touch', UI.toggleVirtualKeyboard);
document.getElementById("noVNC_keyboardinput")
.addEventListener('focus', UI.onfocusVirtualKeyboard);
document.getElementById("noVNC_keyboardinput")
.addEventListener('blur', UI.onblurVirtualKeyboard);
document.getElementById("noVNC_keyboardinput")
.addEventListener('submit', () => false);
document.documentElement
.addEventListener('mousedown', UI.keepVirtualKeyboard, true);
document.getElementById("noVNC_control_bar")
.addEventListener('touchstart', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('touchmove', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('touchend', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('input', UI.activateControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('touchstart', UI.keepControlbar);
document.getElementById("noVNC_control_bar")
.addEventListener('input', UI.keepControlbar);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('touchstart', UI.controlbarHandleMouseDown);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('touchend', UI.controlbarHandleMouseUp);
document.getElementById("noVNC_control_bar_handle")
.addEventListener('touchmove', UI.dragControlbarHandle);
},
addExtraKeysHandlers() {
UI.addClickHandle('noVNC_toggle_extra_keys_button', UI.toggleExtraKeys);
document.getElementById("noVNC_toggle_ctrl_button")
.addEventListener('click', UI.toggleCtrl);
document.getElementById("noVNC_toggle_windows_button")
.addEventListener('click', UI.toggleWindows);
document.getElementById("noVNC_toggle_alt_button")
.addEventListener('click', UI.toggleAlt);
document.getElementById("noVNC_send_tab_button")
.addEventListener('click', UI.sendTab);
document.getElementById("noVNC_send_esc_button")
.addEventListener('click', UI.sendEsc);
document.getElementById("noVNC_send_ctrl_alt_del_button")
.addEventListener('click', UI.sendCtrlAltDel);
},
addGamingHandlers() {
UI.addClickHandle('noVNC_game_mode_button', UI.toggleRelativePointer);
document
.getElementById("noVNC_setting_pointer_lock")
.addEventListener("click", UI.togglePointerLock);
},
addMachineHandlers() {
UI.addClickHandle('noVNC_power_button', UI.togglePowerPanel);
document.getElementById("noVNC_shutdown_button")
.addEventListener('click', () => UI.rfb.machineShutdown());
document.getElementById("noVNC_reboot_button")
.addEventListener('click', () => UI.rfb.machineReboot());
document.getElementById("noVNC_reset_button")
.addEventListener('click', () => UI.rfb.machineReset());
},
addClipboardHandlers() {
UI.addClickHandle('noVNC_clipboard_button', UI.toggleClipboardPanel);
document.getElementById("noVNC_clipboard_text")
.addEventListener('change', UI.clipboardSend);
document.getElementById("noVNC_clipboard_clear_button")
.addEventListener('click', UI.clipboardClear);
},
// Add a call to save settings when the element changes,
// unless the optional parameter changeFunc is used instead.
addSettingChangeHandler(name, changeFunc) {
const settingElem = document.getElementById("noVNC_setting_" + name);
if (changeFunc === undefined) {
changeFunc = () => UI.saveSetting(name);
}
settingElem.addEventListener('change', changeFunc);
},
addSettingsHandlers() {
UI.addClickHandle('noVNC_settings_button', UI.toggleSettingsPanel);
document.getElementById("noVNC_setting_enable_perf_stats").addEventListener('click', UI.showStats);
document.getElementById("noVNC_setting_enable_threading").addEventListener('click', UI.threading);
document.getElementById("noVNC_auto_placement").addEventListener('change', UI.setAutoPlacement);
UI.addSettingChangeHandler('encrypt');
UI.addSettingChangeHandler('resize');
UI.addSettingChangeHandler('resize', UI.applyResizeMode);
UI.addSettingChangeHandler('resize', UI.updateViewClip);
UI.addSettingChangeHandler('quality');
UI.addSettingChangeHandler('quality', UI.updateQuality);
UI.addSettingChangeHandler('dynamic_quality_min');
UI.addSettingChangeHandler('dynamic_quality_min', UI.updateQuality);
UI.addSettingChangeHandler('dynamic_quality_max');
UI.addSettingChangeHandler('dynamic_quality_max', UI.updateQuality);
UI.addSettingChangeHandler('translate_shortcuts');
UI.addSettingChangeHandler('translate_shortcuts', UI.updateShortcutTranslation);
UI.addSettingChangeHandler('treat_lossless');
UI.addSettingChangeHandler('treat_lossless', UI.updateQuality);
UI.addSettingChangeHandler('anti_aliasing');
UI.addSettingChangeHandler('anti_aliasing', UI.updateQuality);
UI.addSettingChangeHandler('video_quality');
UI.addSettingChangeHandler('video_quality', UI.updateQuality);
UI.addSettingChangeHandler('jpeg_video_quality');
UI.addSettingChangeHandler('jpeg_video_quality', UI.updateQuality);
UI.addSettingChangeHandler('webp_video_quality');
UI.addSettingChangeHandler('webp_video_quality', UI.updateQuality);
UI.addSettingChangeHandler('video_area');
UI.addSettingChangeHandler('video_area', UI.updateQuality);
UI.addSettingChangeHandler('video_time');
UI.addSettingChangeHandler('video_time', UI.updateQuality);
UI.addSettingChangeHandler('video_out_time');
UI.addSettingChangeHandler('video_out_time', UI.updateQuality);
UI.addSettingChangeHandler('video_scaling');
UI.addSettingChangeHandler('video_scaling', UI.updateQuality);
UI.addSettingChangeHandler('max_video_resolution_x');
UI.addSettingChangeHandler('max_video_resolution_x', UI.updateQuality);
UI.addSettingChangeHandler('max_video_resolution_y');
UI.addSettingChangeHandler('max_video_resolution_y', UI.updateQuality);
UI.addSettingChangeHandler('framerate');
UI.addSettingChangeHandler('framerate', UI.updateQuality);
UI.addSettingChangeHandler('compression');
UI.addSettingChangeHandler('compression', UI.updateCompression);
UI.addSettingChangeHandler('view_clip');
UI.addSettingChangeHandler('view_clip', UI.updateViewClip);
UI.addSettingChangeHandler('shared');
UI.addSettingChangeHandler('view_only');
UI.addSettingChangeHandler('view_only', UI.updateViewOnly);
UI.addSettingChangeHandler('show_dot');
UI.addSettingChangeHandler('show_dot', UI.updateShowDotCursor);
UI.addSettingChangeHandler('host');
UI.addSettingChangeHandler('port');
UI.addSettingChangeHandler('path');
UI.addSettingChangeHandler('repeaterID');
UI.addSettingChangeHandler('logging');
UI.addSettingChangeHandler('logging', UI.updateLogging);
UI.addSettingChangeHandler('reconnect');
UI.addSettingChangeHandler('reconnect_delay');
UI.addSettingChangeHandler('enable_webp');
UI.addSettingChangeHandler('clipboard_seamless');
UI.addSettingChangeHandler('clipboard_up');
UI.addSettingChangeHandler('clipboard_down');
UI.addSettingChangeHandler('toggle_control_panel');
UI.addSettingChangeHandler('virtual_keyboard_visible');
UI.addSettingChangeHandler('virtual_keyboard_visible', UI.toggleKeyboardControls);
UI.addSettingChangeHandler('enable_ime');
UI.addSettingChangeHandler('enable_ime', UI.toggleIMEMode);
UI.addSettingChangeHandler('enable_webrtc');
UI.addSettingChangeHandler('enable_webrtc', UI.toggleWebRTC);
UI.addSettingChangeHandler('enable_hidpi');
UI.addSettingChangeHandler('enable_hidpi', UI.enableHiDpi);
UI.addSettingChangeHandler('enable_threading');
UI.addSettingChangeHandler('enable_threading', UI.threading);
},
addFullscreenHandlers() {
UI.addClickHandle('noVNC_fullscreen_button', UI.toggleFullscreen);
window.addEventListener('fullscreenchange', UI.updateFullscreenButton);
window.addEventListener('mozfullscreenchange', UI.updateFullscreenButton);
window.addEventListener('webkitfullscreenchange', UI.updateFullscreenButton);
window.addEventListener('msfullscreenchange', UI.updateFullscreenButton);
},
addDisplaysHandler() {
if (UI.supportsBroadcastChannel) {
UI.showControlInput("noVNC_displays_button");
UI.addClickHandle('noVNC_displays_button', UI.openDisplays);
UI.addClickHandle('noVNC_close_displays', UI.closeDisplays);
UI.addClickHandle('noVNC_identify_monitors_button', UI._identify);
UI.addClickHandle('noVNC_addMonitor', UI.addSecondaryMonitor);
UI.addClickHandle('noVNC_refreshMonitors', UI.displaysRefresh);
}
},
setAutoPlacement(e) {
if (e.target.checked === false) {
window.localStorage.setItem('autoPlacement', false)
} else {
window.localStorage.removeItem('autoPlacement')
}
},
/*addMultiMonitorAddHandler() {
if (UI.supportsBroadcastChannel) {
UI.addClickHandle('noVNC_addmonitor_button', UI.addSecondaryMonitor);
}
},*/
/* ------^-------
* /EVENT HANDLERS
* ==============
* VISUAL
* ------v------*/
// Ignore clicks that are propogated from child elements in sub panels
isControlPanelItemClick(e) {
if (!(e && e.target && e.target.classList && e.target.parentNode &&
(
e.target.classList.contains('noVNC_button') && e.target.parentNode.id !== 'noVNC_modifiers' ||
e.target.classList.contains('noVNC_button_div') ||
e.target.classList.contains('noVNC_heading')
)
)) {
return false;
}
return true;
},
// Disable/enable controls depending on connection state
updateVisualState(state) {
document.documentElement.classList.remove("noVNC_connecting");
document.documentElement.classList.remove("noVNC_connected");
document.documentElement.classList.remove("noVNC_disconnecting");
document.documentElement.classList.remove("noVNC_reconnecting");
document.documentElement.classList.remove("noVNC_disconnected");
const transitionElem = document.getElementById("noVNC_transition_text");
if (WebUtil.isInsideKasmVDI())
{
parent.postMessage({ action: 'connection_state', value: state}, '*' );
}
switch (state) {
case 'init':
break;
case 'connecting':
transitionElem.textContent = _("Connecting...");
document.documentElement.classList.add("noVNC_connecting");
break;
case 'connected':
document.documentElement.classList.add("noVNC_connected");
break;
case 'disconnecting':
transitionElem.textContent = _("Disconnecting...");
document.documentElement.classList.add("noVNC_disconnecting");
break;
case 'disconnected':
document.documentElement.classList.add("noVNC_disconnected");
break;
case 'reconnecting':
transitionElem.textContent = _("Reconnecting...");
document.documentElement.classList.add("noVNC_reconnecting");
break;
default:
Log.Error("Invalid visual state: " + state);
UI.showStatus(_("Internal error"), 'error');
return;
}
if (UI.connected) {
UI.updateViewClip();
UI.disableSetting('encrypt');
UI.disableSetting('shared');
UI.disableSetting('host');
UI.disableSetting('port');
UI.disableSetting('path');
UI.disableSetting('repeaterID');
// Hide the controlbar after 2 seconds
UI.closeControlbarTimeout = setTimeout(UI.closeControlbar, 2000);
} else {
UI.enableSetting('encrypt');
UI.enableSetting('shared');
UI.enableSetting('host');
UI.enableSetting('port');
UI.enableSetting('path');
UI.enableSetting('repeaterID');
UI.updatePowerButton();
UI.keepControlbar();
}
//UI.updatePointerLockButton();
// State change closes dialogs as they may not be relevant
// anymore
UI.closeAllPanels();
},
showStats() {
UI.saveSetting('enable_perf_stats');
let enable_stats = UI.getSetting('enable_perf_stats');
if (enable_stats === true && UI.statsInterval == undefined) {
document.getElementById("noVNC_connection_stats").style.visibility = "visible";
UI.statsInterval = setInterval(function() {
if (UI.rfb !== undefined) {
UI.rfb.requestBottleneckStats();
}
} , 5000);
} else {
document.getElementById("noVNC_connection_stats").style.visibility = "hidden";
UI.statsInterval = null;
}
},
threading() {
if (UI.rfb) {
if (UI.getSetting('enable_threading')) {
UI.rfb.threading = true;
} else {
UI.rfb.threading = false;
}
}
UI.saveSetting('enable_threading');
},
showStatus(text, statusType, time, kasm = false) {
// If inside the full Kasm CDI framework, don't show messages unless explicitly told to
if (WebUtil.isInsideKasmVDI() && !kasm) {
return;
}
const statusElem = document.getElementById('noVNC_status');
if (typeof statusType === 'undefined') {
statusType = 'normal';
}
// Don't overwrite more severe visible statuses and never
// errors. Only shows the first error.
if (statusElem.classList.contains("noVNC_open")) {
if (statusElem.classList.contains("noVNC_status_error")) {
return;
}
if (statusElem.classList.contains("noVNC_status_warn") &&
statusType === 'normal') {
return;
}
}
clearTimeout(UI.statusTimeout);
switch (statusType) {
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");
if (WebUtil.isInsideKasmVDI()) {
parent.postMessage({ action: 'control_open', value: 'Control bar opened'}, '*' );
}
},
closeControlbar() {
UI.closeAllPanels();
document.getElementById('noVNC_control_bar')
.classList.remove("noVNC_open");
if (UI.rfb) {
UI.rfb.focus();
}
if (WebUtil.isInsideKasmVDI()) {
parent.postMessage({ action: 'control_close', value: 'Control bar closed'}, '*' );
}
},
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);
},