2 * noVNC: HTML5 VNC client
3 * Copyright (C) 2012 Joel Martin
4 * Copyright (C) 2016 Samuel Mannehed for Cendio AB
5 * Copyright (C) 2016 Pierre Ossman for Cendio AB
6 * Licensed under MPL 2.0 (see LICENSE.txt)
8 * See README.md for usage and integration instructions.
11 /* jslint white: false, browser: true */
12 /* global window, document.getElementById, Util, WebUtil, RFB, Display */
14 import * as Log
from '../core/util/logging.js';
15 import _
, { l10n
} from '../core/util/localization.js';
16 import { isTouchDevice
, browserSupportsCursorURIs as cursorURIsSupported
} from '../core/util/browsers.js';
17 import { setCapture
, getPointerEvent
} from '../core/util/events.js';
18 import KeyTable
from "../core/input/keysym.js";
19 import keysyms
from "../core/input/keysymdef.js";
20 import Keyboard
from "../core/input/keyboard.js";
21 import RFB
from "../core/rfb.js";
22 import Display
from "../core/display.js";
23 import * as WebUtil
from "./webutil.js";
32 hideKeyboardTimeout
: null,
33 idleControlbarTimeout
: null,
34 closeControlbarTimeout
: null,
36 controlbarGrabbed
: false,
37 controlbarDrag
: false,
38 controlbarMouseDownClientY
: 0,
39 controlbarMouseDownOffsetY
: 0,
42 lastKeyboardinput
: null,
43 defaultKeyboardinputLen
: 100,
45 inhibit_reconnect
: true,
46 reconnect_callback
: null,
47 reconnect_password
: null,
49 prime: function(callback
) {
50 if (document
.readyState
=== "interactive" || document
.readyState
=== "complete") {
53 document
.addEventListener('DOMContentLoaded', UI
.load
.bind(UI
, callback
));
57 // Setup rfb object, load settings from browser storage, then call
58 // UI.init to setup the UI/menus
59 load: function(callback
) {
60 WebUtil
.initSettings(UI
.start
, callback
);
63 // Render default UI and initialize settings menu
64 start: function(callback
) {
66 // Setup global variables first
67 UI
.isSafari
= (navigator
.userAgent
.indexOf('Safari') !== -1 &&
68 navigator
.userAgent
.indexOf('Chrome') === -1);
75 // Adapt the interface for touch screen devices
77 document
.documentElement
.classList
.add("noVNC_touch");
78 // Remove the address bar
79 setTimeout(function() { window
.scrollTo(0, 1); }, 100);
82 // Restore control bar position
83 if (WebUtil
.readSetting('controlbar_pos') === 'right') {
84 UI
.toggleControlbarSide();
89 // Setup event handlers
90 UI
.addResizeHandlers();
91 UI
.addControlbarHandlers();
92 UI
.addTouchSpecificHandlers();
93 UI
.addExtraKeysHandlers();
95 UI
.addConnectionControlHandlers();
96 UI
.addClipboardHandlers();
97 UI
.addSettingsHandlers();
98 document
.getElementById("noVNC_status")
99 .addEventListener('click', UI
.hideStatus
);
101 // Bootstrap fallback input handler
102 UI
.keyboardinputReset();
108 UI
.updateVisualState();
110 document
.documentElement
.classList
.remove("noVNC_loading");
112 var autoconnect
= WebUtil
.getConfigVar('autoconnect', false);
113 if (autoconnect
=== 'true' || autoconnect
== '1') {
118 // Show the connect panel on first load unless autoconnecting
119 UI
.openConnectPanel();
122 if (typeof callback
=== "function") {
127 initFullscreen: function() {
128 // Only show the button if fullscreen is properly supported
129 // * Safari doesn't support alphanumerical input while in fullscreen
131 (document
.documentElement
.requestFullscreen
||
132 document
.documentElement
.mozRequestFullScreen
||
133 document
.documentElement
.webkitRequestFullscreen
||
134 document
.body
.msRequestFullscreen
)) {
135 document
.getElementById('noVNC_fullscreen_button')
136 .classList
.remove("noVNC_hidden");
137 UI
.addFullscreenHandlers();
141 initSettings: function() {
144 // Logging selection dropdown
145 var llevels
= ['error', 'warn', 'info', 'debug'];
146 for (i
= 0; i
< llevels
.length
; i
+= 1) {
147 UI
.addOption(document
.getElementById('noVNC_setting_logging'),llevels
[i
], llevels
[i
]);
150 // Settings with immediate effects
151 UI
.initSetting('logging', 'warn');
154 // if port == 80 (or 443) then it won't be present and should be
156 var port
= window
.location
.port
;
158 if (window
.location
.protocol
.substring(0,5) == 'https') {
161 else if (window
.location
.protocol
.substring(0,4) == 'http') {
166 /* Populate the controls if defaults are provided in the URL */
167 UI
.initSetting('host', window
.location
.hostname
);
168 UI
.initSetting('port', port
);
169 UI
.initSetting('encrypt', (window
.location
.protocol
=== "https:"));
170 UI
.initSetting('cursor', !isTouchDevice
);
171 UI
.initSetting('view_clip', false);
172 UI
.initSetting('resize', 'off');
173 UI
.initSetting('shared', true);
174 UI
.initSetting('view_only', false);
175 UI
.initSetting('path', 'websockify');
176 UI
.initSetting('repeaterID', '');
177 UI
.initSetting('reconnect', false);
178 UI
.initSetting('reconnect_delay', 5000);
180 UI
.setupSettingLabels();
182 // Adds a link to the label elements on the corresponding input elements
183 setupSettingLabels: function() {
184 var labels
= document
.getElementsByTagName('LABEL');
185 for (var i
= 0; i
< labels
.length
; i
++) {
186 var htmlFor
= labels
[i
].htmlFor
;
188 var elem
= document
.getElementById(htmlFor
);
189 if (elem
) elem
.label
= labels
[i
];
191 // If 'for' isn't set, use the first input element child
192 var children
= labels
[i
].children
;
193 for (var j
= 0; j
< children
.length
; j
++) {
194 if (children
[j
].form
!== undefined) {
195 children
[j
].label
= labels
[i
];
203 initRFB: function() {
205 UI
.rfb
= new RFB({'target': document
.getElementById('noVNC_canvas'),
206 'onNotification': UI
.notification
,
207 'onUpdateState': UI
.updateState
,
208 'onDisconnected': UI
.disconnectFinished
,
209 'onCredentialsRequired': UI
.credentials
,
210 'onXvpInit': UI
.updateXvpButton
,
211 'onClipboard': UI
.clipboardReceive
,
213 'onFBUComplete': UI
.initialResize
,
214 'onFBResize': UI
.updateSessionSize
,
215 'onDesktopName': UI
.updateDesktopName
});
218 var msg
= "Unable to create RFB client -- " + exc
;
220 UI
.showStatus(msg
, 'error');
231 addResizeHandlers: function() {
232 window
.addEventListener('resize', UI
.applyResizeMode
);
233 window
.addEventListener('resize', UI
.updateViewClip
);
236 addControlbarHandlers: function() {
237 document
.getElementById("noVNC_control_bar")
238 .addEventListener('mousemove', UI
.activateControlbar
);
239 document
.getElementById("noVNC_control_bar")
240 .addEventListener('mouseup', UI
.activateControlbar
);
241 document
.getElementById("noVNC_control_bar")
242 .addEventListener('mousedown', UI
.activateControlbar
);
243 document
.getElementById("noVNC_control_bar")
244 .addEventListener('keydown', UI
.activateControlbar
);
246 document
.getElementById("noVNC_control_bar")
247 .addEventListener('mousedown', UI
.keepControlbar
);
248 document
.getElementById("noVNC_control_bar")
249 .addEventListener('keydown', UI
.keepControlbar
);
251 document
.getElementById("noVNC_view_drag_button")
252 .addEventListener('click', UI
.toggleViewDrag
);
254 document
.getElementById("noVNC_control_bar_handle")
255 .addEventListener('mousedown', UI
.controlbarHandleMouseDown
);
256 document
.getElementById("noVNC_control_bar_handle")
257 .addEventListener('mouseup', UI
.controlbarHandleMouseUp
);
258 document
.getElementById("noVNC_control_bar_handle")
259 .addEventListener('mousemove', UI
.dragControlbarHandle
);
260 // resize events aren't available for elements
261 window
.addEventListener('resize', UI
.updateControlbarHandle
);
263 var exps
= document
.getElementsByClassName("noVNC_expander");
264 for (var i
= 0;i
< exps
.length
;i
++) {
265 exps
[i
].addEventListener('click', UI
.toggleExpander
);
269 addTouchSpecificHandlers: function() {
270 document
.getElementById("noVNC_mouse_button0")
271 .addEventListener('click', function () { UI
.setMouseButton(1); });
272 document
.getElementById("noVNC_mouse_button1")
273 .addEventListener('click', function () { UI
.setMouseButton(2); });
274 document
.getElementById("noVNC_mouse_button2")
275 .addEventListener('click', function () { UI
.setMouseButton(4); });
276 document
.getElementById("noVNC_mouse_button4")
277 .addEventListener('click', function () { UI
.setMouseButton(0); });
278 document
.getElementById("noVNC_keyboard_button")
279 .addEventListener('click', UI
.toggleVirtualKeyboard
);
281 UI
.touchKeyboard
= new Keyboard({target
: document
.getElementById('noVNC_keyboardinput'),
282 onKeyEvent
: UI
.keyEvent
});
283 UI
.touchKeyboard
.grab();
284 document
.getElementById("noVNC_keyboardinput")
285 .addEventListener('input', UI
.keyInput
);
286 document
.getElementById("noVNC_keyboardinput")
287 .addEventListener('focus', UI
.onfocusVirtualKeyboard
);
288 document
.getElementById("noVNC_keyboardinput")
289 .addEventListener('blur', UI
.onblurVirtualKeyboard
);
290 document
.getElementById("noVNC_keyboardinput")
291 .addEventListener('submit', function () { return false; });
293 document
.documentElement
294 .addEventListener('mousedown', UI
.keepVirtualKeyboard
, true);
295 document
.documentElement
296 .addEventListener('touchstart', UI
.keepVirtualKeyboard
, true);
298 document
.getElementById("noVNC_control_bar")
299 .addEventListener('touchstart', UI
.activateControlbar
);
300 document
.getElementById("noVNC_control_bar")
301 .addEventListener('touchmove', UI
.activateControlbar
);
302 document
.getElementById("noVNC_control_bar")
303 .addEventListener('touchend', UI
.activateControlbar
);
304 document
.getElementById("noVNC_control_bar")
305 .addEventListener('input', UI
.activateControlbar
);
307 document
.getElementById("noVNC_control_bar")
308 .addEventListener('touchstart', UI
.keepControlbar
);
309 document
.getElementById("noVNC_control_bar")
310 .addEventListener('input', UI
.keepControlbar
);
312 document
.getElementById("noVNC_control_bar_handle")
313 .addEventListener('touchstart', UI
.controlbarHandleMouseDown
);
314 document
.getElementById("noVNC_control_bar_handle")
315 .addEventListener('touchend', UI
.controlbarHandleMouseUp
);
316 document
.getElementById("noVNC_control_bar_handle")
317 .addEventListener('touchmove', UI
.dragControlbarHandle
);
320 addExtraKeysHandlers: function() {
321 document
.getElementById("noVNC_toggle_extra_keys_button")
322 .addEventListener('click', UI
.toggleExtraKeys
);
323 document
.getElementById("noVNC_toggle_ctrl_button")
324 .addEventListener('click', UI
.toggleCtrl
);
325 document
.getElementById("noVNC_toggle_alt_button")
326 .addEventListener('click', UI
.toggleAlt
);
327 document
.getElementById("noVNC_send_tab_button")
328 .addEventListener('click', UI
.sendTab
);
329 document
.getElementById("noVNC_send_esc_button")
330 .addEventListener('click', UI
.sendEsc
);
331 document
.getElementById("noVNC_send_ctrl_alt_del_button")
332 .addEventListener('click', UI
.sendCtrlAltDel
);
335 addXvpHandlers: function() {
336 document
.getElementById("noVNC_xvp_shutdown_button")
337 .addEventListener('click', function() { UI
.rfb
.xvpShutdown(); });
338 document
.getElementById("noVNC_xvp_reboot_button")
339 .addEventListener('click', function() { UI
.rfb
.xvpReboot(); });
340 document
.getElementById("noVNC_xvp_reset_button")
341 .addEventListener('click', function() { UI
.rfb
.xvpReset(); });
342 document
.getElementById("noVNC_xvp_button")
343 .addEventListener('click', UI
.toggleXvpPanel
);
346 addConnectionControlHandlers: function() {
347 document
.getElementById("noVNC_disconnect_button")
348 .addEventListener('click', UI
.disconnect
);
349 document
.getElementById("noVNC_connect_button")
350 .addEventListener('click', UI
.connect
);
351 document
.getElementById("noVNC_cancel_reconnect_button")
352 .addEventListener('click', UI
.cancelReconnect
);
354 document
.getElementById("noVNC_password_button")
355 .addEventListener('click', UI
.setPassword
);
358 addClipboardHandlers: function() {
359 document
.getElementById("noVNC_clipboard_button")
360 .addEventListener('click', UI
.toggleClipboardPanel
);
361 document
.getElementById("noVNC_clipboard_text")
362 .addEventListener('change', UI
.clipboardSend
);
363 document
.getElementById("noVNC_clipboard_clear_button")
364 .addEventListener('click', UI
.clipboardClear
);
367 // Add a call to save settings when the element changes,
368 // unless the optional parameter changeFunc is used instead.
369 addSettingChangeHandler: function(name
, changeFunc
) {
370 var settingElem
= document
.getElementById("noVNC_setting_" + name
);
371 if (changeFunc
=== undefined) {
372 changeFunc = function () { UI
.saveSetting(name
); };
374 settingElem
.addEventListener('change', changeFunc
);
377 addSettingsHandlers: function() {
378 document
.getElementById("noVNC_settings_button")
379 .addEventListener('click', UI
.toggleSettingsPanel
);
381 UI
.addSettingChangeHandler('encrypt');
382 UI
.addSettingChangeHandler('cursor');
383 UI
.addSettingChangeHandler('cursor', UI
.updateLocalCursor
);
384 UI
.addSettingChangeHandler('resize');
385 UI
.addSettingChangeHandler('resize', UI
.enableDisableViewClip
);
386 UI
.addSettingChangeHandler('resize', UI
.applyResizeMode
);
387 UI
.addSettingChangeHandler('view_clip');
388 UI
.addSettingChangeHandler('view_clip', UI
.updateViewClip
);
389 UI
.addSettingChangeHandler('shared');
390 UI
.addSettingChangeHandler('view_only');
391 UI
.addSettingChangeHandler('view_only', UI
.updateViewOnly
);
392 UI
.addSettingChangeHandler('host');
393 UI
.addSettingChangeHandler('port');
394 UI
.addSettingChangeHandler('path');
395 UI
.addSettingChangeHandler('repeaterID');
396 UI
.addSettingChangeHandler('logging');
397 UI
.addSettingChangeHandler('logging', UI
.updateLogging
);
398 UI
.addSettingChangeHandler('reconnect');
399 UI
.addSettingChangeHandler('reconnect_delay');
402 addFullscreenHandlers: function() {
403 document
.getElementById("noVNC_fullscreen_button")
404 .addEventListener('click', UI
.toggleFullscreen
);
406 window
.addEventListener('fullscreenchange', UI
.updateFullscreenButton
);
407 window
.addEventListener('mozfullscreenchange', UI
.updateFullscreenButton
);
408 window
.addEventListener('webkitfullscreenchange', UI
.updateFullscreenButton
);
409 window
.addEventListener('msfullscreenchange', UI
.updateFullscreenButton
);
418 updateState: function(rfb
, state
, oldstate
) {
421 document
.documentElement
.classList
.remove("noVNC_connecting");
422 document
.documentElement
.classList
.remove("noVNC_connected");
423 document
.documentElement
.classList
.remove("noVNC_disconnecting");
424 document
.documentElement
.classList
.remove("noVNC_reconnecting");
428 document
.getElementById("noVNC_transition_text").textContent
= _("Connecting...");
429 document
.documentElement
.classList
.add("noVNC_connecting");
433 UI
.inhibit_reconnect
= false;
434 document
.documentElement
.classList
.add("noVNC_connected");
435 if (rfb
&& rfb
.get_encrypt()) {
436 msg
= _("Connected (encrypted) to ") + UI
.desktopName
;
438 msg
= _("Connected (unencrypted) to ") + UI
.desktopName
;
441 document
.getElementById('noVNC_canvas').focus();
443 case 'disconnecting':
444 UI
.connected
= false;
445 document
.getElementById("noVNC_transition_text").textContent
= _("Disconnecting...");
446 document
.documentElement
.classList
.add("noVNC_disconnecting");
449 UI
.showStatus(_("Disconnected"));
452 msg
= "Invalid UI state";
454 UI
.showStatus(msg
, 'error');
458 UI
.updateVisualState();
461 // Disable/enable controls depending on connection state
462 updateVisualState: function() {
463 //Log.Debug(">> updateVisualState");
465 UI
.enableDisableViewClip();
467 if (cursorURIsSupported() && !isTouchDevice
) {
468 UI
.enableSetting('cursor');
470 UI
.disableSetting('cursor');
474 UI
.disableSetting('encrypt');
475 UI
.disableSetting('shared');
476 UI
.disableSetting('host');
477 UI
.disableSetting('port');
478 UI
.disableSetting('path');
479 UI
.disableSetting('repeaterID');
481 UI
.setMouseButton(1);
483 // Hide the controlbar after 2 seconds
484 UI
.closeControlbarTimeout
= setTimeout(UI
.closeControlbar
, 2000);
486 UI
.enableSetting('encrypt');
487 UI
.enableSetting('shared');
488 UI
.enableSetting('host');
489 UI
.enableSetting('port');
490 UI
.enableSetting('path');
491 UI
.enableSetting('repeaterID');
492 UI
.updateXvpButton(0);
496 // Hide input related buttons in view only mode
497 if (UI
.rfb
&& UI
.rfb
.get_view_only()) {
498 document
.getElementById('noVNC_keyboard_button')
499 .classList
.add('noVNC_hidden');
500 document
.getElementById('noVNC_toggle_extra_keys_button')
501 .classList
.add('noVNC_hidden');
503 document
.getElementById('noVNC_keyboard_button')
504 .classList
.remove('noVNC_hidden');
505 document
.getElementById('noVNC_toggle_extra_keys_button')
506 .classList
.remove('noVNC_hidden');
509 // State change disables viewport dragging.
510 // It is enabled (toggled) by direct click on the button
511 UI
.setViewDrag(false);
513 // State change also closes the password dialog
514 document
.getElementById('noVNC_password_dlg')
515 .classList
.remove('noVNC_open');
517 //Log.Debug("<< updateVisualState");
520 showStatus: function(text
, status_type
, time
) {
521 var statusElem
= document
.getElementById('noVNC_status');
523 clearTimeout(UI
.statusTimeout
);
525 if (typeof status_type
=== 'undefined') {
526 status_type
= 'normal';
529 statusElem
.classList
.remove("noVNC_status_normal");
530 statusElem
.classList
.remove("noVNC_status_warn");
531 statusElem
.classList
.remove("noVNC_status_error");
533 switch (status_type
) {
536 statusElem
.classList
.add("noVNC_status_warn");
539 statusElem
.classList
.add("noVNC_status_error");
544 statusElem
.classList
.add("noVNC_status_normal");
548 statusElem
.textContent
= text
;
549 statusElem
.classList
.add("noVNC_open");
551 // If no time was specified, show the status for 1.5 seconds
552 if (typeof time
=== 'undefined') {
556 // Error messages do not timeout
557 if (status_type
!== 'error') {
558 UI
.statusTimeout
= window
.setTimeout(UI
.hideStatus
, time
);
562 hideStatus: function() {
563 clearTimeout(UI
.statusTimeout
);
564 document
.getElementById('noVNC_status').classList
.remove("noVNC_open");
567 notification: function (rfb
, msg
, level
, options
) {
568 UI
.showStatus(msg
, level
);
571 activateControlbar: function(event
) {
572 clearTimeout(UI
.idleControlbarTimeout
);
573 // We manipulate the anchor instead of the actual control
574 // bar in order to avoid creating new a stacking group
575 document
.getElementById('noVNC_control_bar_anchor')
576 .classList
.remove("noVNC_idle");
577 UI
.idleControlbarTimeout
= window
.setTimeout(UI
.idleControlbar
, 2000);
580 idleControlbar: function() {
581 document
.getElementById('noVNC_control_bar_anchor')
582 .classList
.add("noVNC_idle");
585 keepControlbar: function() {
586 clearTimeout(UI
.closeControlbarTimeout
);
589 openControlbar: function() {
590 document
.getElementById('noVNC_control_bar')
591 .classList
.add("noVNC_open");
594 closeControlbar: function() {
596 document
.getElementById('noVNC_control_bar')
597 .classList
.remove("noVNC_open");
600 toggleControlbar: function() {
601 if (document
.getElementById('noVNC_control_bar')
602 .classList
.contains("noVNC_open")) {
603 UI
.closeControlbar();
609 toggleControlbarSide: function () {
610 // Temporarily disable animation to avoid weird movement
611 var bar
= document
.getElementById('noVNC_control_bar');
612 bar
.style
.transitionDuration
= '0s';
613 bar
.addEventListener('transitionend', function () { this.style
.transitionDuration
= ""; });
615 var anchor
= document
.getElementById('noVNC_control_bar_anchor');
616 if (anchor
.classList
.contains("noVNC_right")) {
617 WebUtil
.writeSetting('controlbar_pos', 'left');
618 anchor
.classList
.remove("noVNC_right");
620 WebUtil
.writeSetting('controlbar_pos', 'right');
621 anchor
.classList
.add("noVNC_right");
624 // Consider this a movement of the handle
625 UI
.controlbarDrag
= true;
628 showControlbarHint: function (show
) {
629 var hint
= document
.getElementById('noVNC_control_bar_hint');
631 hint
.classList
.add("noVNC_active");
633 hint
.classList
.remove("noVNC_active");
637 dragControlbarHandle: function (e
) {
638 if (!UI
.controlbarGrabbed
) return;
640 var ptr
= getPointerEvent(e
);
642 var anchor
= document
.getElementById('noVNC_control_bar_anchor');
643 if (ptr
.clientX
< (window
.innerWidth
* 0.1)) {
644 if (anchor
.classList
.contains("noVNC_right")) {
645 UI
.toggleControlbarSide();
647 } else if (ptr
.clientX
> (window
.innerWidth
* 0.9)) {
648 if (!anchor
.classList
.contains("noVNC_right")) {
649 UI
.toggleControlbarSide();
653 if (!UI
.controlbarDrag
) {
654 // The goal is to trigger on a certain physical width, the
655 // devicePixelRatio brings us a bit closer but is not optimal.
656 var dragThreshold
= 10 * (window
.devicePixelRatio
|| 1);
657 var dragDistance
= Math
.abs(ptr
.clientY
- UI
.controlbarMouseDownClientY
);
659 if (dragDistance
< dragThreshold
) return;
661 UI
.controlbarDrag
= true;
664 var eventY
= ptr
.clientY
- UI
.controlbarMouseDownOffsetY
;
666 UI
.moveControlbarHandle(eventY
);
671 UI
.activateControlbar();
674 // Move the handle but don't allow any position outside the bounds
675 moveControlbarHandle: function (viewportRelativeY
) {
676 var handle
= document
.getElementById("noVNC_control_bar_handle");
677 var handleHeight
= handle
.getBoundingClientRect().height
;
678 var controlbarBounds
= document
.getElementById("noVNC_control_bar")
679 .getBoundingClientRect();
682 // These heights need to be non-zero for the below logic to work
683 if (handleHeight
=== 0 || controlbarBounds
.height
=== 0) {
687 var newY
= viewportRelativeY
;
689 // Check if the coordinates are outside the control bar
690 if (newY
< controlbarBounds
.top
+ margin
) {
691 // Force coordinates to be below the top of the control bar
692 newY
= controlbarBounds
.top
+ margin
;
694 } else if (newY
> controlbarBounds
.top
+
695 controlbarBounds
.height
- handleHeight
- margin
) {
696 // Force coordinates to be above the bottom of the control bar
697 newY
= controlbarBounds
.top
+
698 controlbarBounds
.height
- handleHeight
- margin
;
701 // Corner case: control bar too small for stable position
702 if (controlbarBounds
.height
< (handleHeight
+ margin
* 2)) {
703 newY
= controlbarBounds
.top
+
704 (controlbarBounds
.height
- handleHeight
) / 2;
707 // The transform needs coordinates that are relative to the parent
708 var parentRelativeY
= newY
- controlbarBounds
.top
;
709 handle
.style
.transform
= "translateY(" + parentRelativeY
+ "px)";
712 updateControlbarHandle: function () {
713 // Since the control bar is fixed on the viewport and not the page,
714 // the move function expects coordinates relative the the viewport.
715 var handle
= document
.getElementById("noVNC_control_bar_handle");
716 var handleBounds
= handle
.getBoundingClientRect();
717 UI
.moveControlbarHandle(handleBounds
.top
);
720 controlbarHandleMouseUp: function(e
) {
721 if ((e
.type
== "mouseup") && (e
.button
!= 0)) return;
723 // mouseup and mousedown on the same place toggles the controlbar
724 if (UI
.controlbarGrabbed
&& !UI
.controlbarDrag
) {
725 UI
.toggleControlbar();
729 UI
.activateControlbar();
731 UI
.controlbarGrabbed
= false;
732 UI
.showControlbarHint(false);
735 controlbarHandleMouseDown: function(e
) {
736 if ((e
.type
== "mousedown") && (e
.button
!= 0)) return;
738 var ptr
= getPointerEvent(e
);
740 var handle
= document
.getElementById("noVNC_control_bar_handle");
741 var bounds
= handle
.getBoundingClientRect();
743 // Touch events have implicit capture
744 if (e
.type
=== "mousedown") {
748 UI
.controlbarGrabbed
= true;
749 UI
.controlbarDrag
= false;
751 UI
.showControlbarHint(true);
753 UI
.controlbarMouseDownClientY
= ptr
.clientY
;
754 UI
.controlbarMouseDownOffsetY
= ptr
.clientY
- bounds
.top
;
758 UI
.activateControlbar();
761 toggleExpander: function(e
) {
762 if (this.classList
.contains("noVNC_open")) {
763 this.classList
.remove("noVNC_open");
765 this.classList
.add("noVNC_open");
775 // Initial page load read/initialization of settings
776 initSetting: function(name
, defVal
) {
777 // Check Query string followed by cookie
778 var val
= WebUtil
.getConfigVar(name
);
780 val
= WebUtil
.readSetting(name
, defVal
);
782 UI
.updateSetting(name
, val
);
786 // Update cookie and form control setting. If value is not set, then
787 // updates from control to current cookie setting.
788 updateSetting: function(name
, value
) {
790 // Save the cookie for this session
791 if (typeof value
!== 'undefined') {
792 WebUtil
.writeSetting(name
, value
);
795 // Update the settings control
796 value
= UI
.getSetting(name
);
798 var ctrl
= document
.getElementById('noVNC_setting_' + name
);
799 if (ctrl
.type
=== 'checkbox') {
800 ctrl
.checked
= value
;
802 } else if (typeof ctrl
.options
!== 'undefined') {
803 for (var i
= 0; i
< ctrl
.options
.length
; i
+= 1) {
804 if (ctrl
.options
[i
].value
=== value
) {
805 ctrl
.selectedIndex
= i
;
810 /*Weird IE9 error leads to 'null' appearring
811 in textboxes instead of ''.*/
812 if (value
=== null) {
819 // Save control setting to cookie
820 saveSetting: function(name
) {
821 var val
, ctrl
= document
.getElementById('noVNC_setting_' + name
);
822 if (ctrl
.type
=== 'checkbox') {
824 } else if (typeof ctrl
.options
!== 'undefined') {
825 val
= ctrl
.options
[ctrl
.selectedIndex
].value
;
829 WebUtil
.writeSetting(name
, val
);
830 //Log.Debug("Setting saved '" + name + "=" + val + "'");
834 // Read form control compatible setting from cookie
835 getSetting: function(name
) {
836 var ctrl
= document
.getElementById('noVNC_setting_' + name
);
837 var val
= WebUtil
.readSetting(name
);
838 if (typeof val
!== 'undefined' && val
!== null && ctrl
.type
=== 'checkbox') {
839 if (val
.toString().toLowerCase() in {'0':1, 'no':1, 'false':1}) {
848 // These helpers compensate for the lack of parent-selectors and
849 // previous-sibling-selectors in CSS which are needed when we want to
850 // disable the labels that belong to disabled input elements.
851 disableSetting: function(name
) {
852 var ctrl
= document
.getElementById('noVNC_setting_' + name
);
853 ctrl
.disabled
= true;
854 ctrl
.label
.classList
.add('noVNC_disabled');
857 enableSetting: function(name
) {
858 var ctrl
= document
.getElementById('noVNC_setting_' + name
);
859 ctrl
.disabled
= false;
860 ctrl
.label
.classList
.remove('noVNC_disabled');
869 closeAllPanels: function() {
870 UI
.closeSettingsPanel();
872 UI
.closeClipboardPanel();
882 openSettingsPanel: function() {
886 // Refresh UI elements from saved cookies
887 UI
.updateSetting('encrypt');
888 if (cursorURIsSupported()) {
889 UI
.updateSetting('cursor');
891 UI
.updateSetting('cursor', !isTouchDevice
);
892 UI
.disableSetting('cursor');
894 UI
.updateSetting('view_clip');
895 UI
.updateSetting('resize');
896 UI
.updateSetting('shared');
897 UI
.updateSetting('view_only');
898 UI
.updateSetting('path');
899 UI
.updateSetting('repeaterID');
900 UI
.updateSetting('logging');
901 UI
.updateSetting('reconnect');
902 UI
.updateSetting('reconnect_delay');
904 document
.getElementById('noVNC_settings')
905 .classList
.add("noVNC_open");
906 document
.getElementById('noVNC_settings_button')
907 .classList
.add("noVNC_selected");
910 closeSettingsPanel: function() {
911 document
.getElementById('noVNC_settings')
912 .classList
.remove("noVNC_open");
913 document
.getElementById('noVNC_settings_button')
914 .classList
.remove("noVNC_selected");
917 toggleSettingsPanel: function() {
918 if (document
.getElementById('noVNC_settings')
919 .classList
.contains("noVNC_open")) {
920 UI
.closeSettingsPanel();
922 UI
.openSettingsPanel();
932 openXvpPanel: function() {
936 document
.getElementById('noVNC_xvp')
937 .classList
.add("noVNC_open");
938 document
.getElementById('noVNC_xvp_button')
939 .classList
.add("noVNC_selected");
942 closeXvpPanel: function() {
943 document
.getElementById('noVNC_xvp')
944 .classList
.remove("noVNC_open");
945 document
.getElementById('noVNC_xvp_button')
946 .classList
.remove("noVNC_selected");
949 toggleXvpPanel: function() {
950 if (document
.getElementById('noVNC_xvp')
951 .classList
.contains("noVNC_open")) {
958 // Disable/enable XVP button
959 updateXvpButton: function(ver
) {
960 if (ver
>= 1 && !UI
.rfb
.get_view_only()) {
961 document
.getElementById('noVNC_xvp_button')
962 .classList
.remove("noVNC_hidden");
964 document
.getElementById('noVNC_xvp_button')
965 .classList
.add("noVNC_hidden");
966 // Close XVP panel if open
977 openClipboardPanel: function() {
981 document
.getElementById('noVNC_clipboard')
982 .classList
.add("noVNC_open");
983 document
.getElementById('noVNC_clipboard_button')
984 .classList
.add("noVNC_selected");
987 closeClipboardPanel: function() {
988 document
.getElementById('noVNC_clipboard')
989 .classList
.remove("noVNC_open");
990 document
.getElementById('noVNC_clipboard_button')
991 .classList
.remove("noVNC_selected");
994 toggleClipboardPanel: function() {
995 if (document
.getElementById('noVNC_clipboard')
996 .classList
.contains("noVNC_open")) {
997 UI
.closeClipboardPanel();
999 UI
.openClipboardPanel();
1003 clipboardReceive: function(rfb
, text
) {
1004 Log
.Debug(">> UI.clipboardReceive: " + text
.substr(0,40) + "...");
1005 document
.getElementById('noVNC_clipboard_text').value
= text
;
1006 Log
.Debug("<< UI.clipboardReceive");
1009 clipboardClear: function() {
1010 document
.getElementById('noVNC_clipboard_text').value
= "";
1011 UI
.rfb
.clipboardPasteFrom("");
1014 clipboardSend: function() {
1015 var text
= document
.getElementById('noVNC_clipboard_text').value
;
1016 Log
.Debug(">> UI.clipboardSend: " + text
.substr(0,40) + "...");
1017 UI
.rfb
.clipboardPasteFrom(text
);
1018 Log
.Debug("<< UI.clipboardSend");
1027 openConnectPanel: function() {
1028 document
.getElementById('noVNC_connect_dlg')
1029 .classList
.add("noVNC_open");
1032 closeConnectPanel: function() {
1033 document
.getElementById('noVNC_connect_dlg')
1034 .classList
.remove("noVNC_open");
1037 connect: function(event
, password
) {
1038 var host
= UI
.getSetting('host');
1039 var port
= UI
.getSetting('port');
1040 var path
= UI
.getSetting('path');
1042 if (typeof password
=== 'undefined') {
1043 password
= WebUtil
.getConfigVar('password');
1044 UI
.reconnect_password
= password
;
1047 if (password
=== null) {
1048 password
= undefined;
1052 var msg
= _("Must set host");
1054 UI
.showStatus(msg
, 'error');
1058 if (!UI
.initRFB()) return;
1060 UI
.closeAllPanels();
1061 UI
.closeConnectPanel();
1063 UI
.rfb
.set_encrypt(UI
.getSetting('encrypt'));
1064 UI
.rfb
.set_shared(UI
.getSetting('shared'));
1065 UI
.rfb
.set_repeaterID(UI
.getSetting('repeaterID'));
1067 UI
.updateLocalCursor();
1068 UI
.updateViewOnly();
1070 UI
.rfb
.connect(host
, port
, { password
: password
}, path
);
1073 disconnect: function() {
1074 UI
.closeAllPanels();
1075 UI
.rfb
.disconnect();
1077 // Disable automatic reconnecting
1078 UI
.inhibit_reconnect
= true;
1080 // Restore the callback used for initial resize
1081 UI
.rfb
.set_onFBUComplete(UI
.initialResize
);
1083 // Don't display the connection settings until we're actually disconnected
1086 reconnect: function() {
1087 UI
.reconnect_callback
= null;
1089 // if reconnect has been disabled in the meantime, do nothing.
1090 if (UI
.inhibit_reconnect
) {
1094 UI
.connect(null, UI
.reconnect_password
);
1097 disconnectFinished: function (rfb
, reason
) {
1098 if (typeof reason
!== 'undefined') {
1099 UI
.showStatus(reason
, 'error');
1100 } else if (UI
.getSetting('reconnect', false) === true && !UI
.inhibit_reconnect
) {
1101 document
.getElementById("noVNC_transition_text").textContent
= _("Reconnecting...");
1102 document
.documentElement
.classList
.add("noVNC_reconnecting");
1104 var delay
= parseInt(UI
.getSetting('reconnect_delay'));
1105 UI
.reconnect_callback
= setTimeout(UI
.reconnect
, delay
);
1109 UI
.openControlbar();
1110 UI
.openConnectPanel();
1113 cancelReconnect: function() {
1114 if (UI
.reconnect_callback
!== null) {
1115 clearTimeout(UI
.reconnect_callback
);
1116 UI
.reconnect_callback
= null;
1119 document
.documentElement
.classList
.remove("noVNC_reconnecting");
1120 UI
.openControlbar();
1121 UI
.openConnectPanel();
1130 credentials: function(rfb
, types
) {
1131 // FIXME: handle more types
1132 document
.getElementById('noVNC_password_dlg')
1133 .classList
.add('noVNC_open');
1135 setTimeout(function () {
1136 document
.getElementById('noVNC_password_input').focus();
1139 var msg
= _("Password is required");
1141 UI
.showStatus(msg
, "warning");
1144 setPassword: function(e
) {
1145 var inputElem
= document
.getElementById('noVNC_password_input');
1146 var password
= inputElem
.value
;
1147 // Clear the input after reading the password
1148 inputElem
.value
= "";
1149 UI
.rfb
.sendCredentials({ password
: password
});
1150 UI
.reconnect_password
= password
;
1151 document
.getElementById('noVNC_password_dlg')
1152 .classList
.remove('noVNC_open');
1153 // Prevent actually submitting the form
1163 toggleFullscreen: function() {
1164 if (document
.fullscreenElement
|| // alternative standard method
1165 document
.mozFullScreenElement
|| // currently working methods
1166 document
.webkitFullscreenElement
||
1167 document
.msFullscreenElement
) {
1168 if (document
.exitFullscreen
) {
1169 document
.exitFullscreen();
1170 } else if (document
.mozCancelFullScreen
) {
1171 document
.mozCancelFullScreen();
1172 } else if (document
.webkitExitFullscreen
) {
1173 document
.webkitExitFullscreen();
1174 } else if (document
.msExitFullscreen
) {
1175 document
.msExitFullscreen();
1178 if (document
.documentElement
.requestFullscreen
) {
1179 document
.documentElement
.requestFullscreen();
1180 } else if (document
.documentElement
.mozRequestFullScreen
) {
1181 document
.documentElement
.mozRequestFullScreen();
1182 } else if (document
.documentElement
.webkitRequestFullscreen
) {
1183 document
.documentElement
.webkitRequestFullscreen(Element
.ALLOW_KEYBOARD_INPUT
);
1184 } else if (document
.body
.msRequestFullscreen
) {
1185 document
.body
.msRequestFullscreen();
1188 UI
.enableDisableViewClip();
1189 UI
.updateFullscreenButton();
1192 updateFullscreenButton: function() {
1193 if (document
.fullscreenElement
|| // alternative standard method
1194 document
.mozFullScreenElement
|| // currently working methods
1195 document
.webkitFullscreenElement
||
1196 document
.msFullscreenElement
) {
1197 document
.getElementById('noVNC_fullscreen_button')
1198 .classList
.add("noVNC_selected");
1200 document
.getElementById('noVNC_fullscreen_button')
1201 .classList
.remove("noVNC_selected");
1211 // Apply remote resizing or local scaling
1212 applyResizeMode: function() {
1213 if (!UI
.rfb
) return;
1215 var screen
= UI
.screenSize();
1217 if (screen
&& UI
.connected
) {
1219 var resizeMode
= UI
.getSetting('resize');
1220 UI
.rfb
.set_scale(1);
1222 // Make sure the viewport is adjusted first
1223 UI
.updateViewClip();
1225 if (resizeMode
=== 'remote') {
1227 // Request changing the resolution of the remote display to
1228 // the size of the local browser viewport.
1230 // In order to not send multiple requests before the browser-resize
1231 // is finished we wait 0.5 seconds before sending the request.
1232 clearTimeout(UI
.resizeTimeout
);
1233 UI
.resizeTimeout
= setTimeout(function(){
1234 // Request a remote size covering the viewport
1235 if (UI
.rfb
.requestDesktopSize(screen
.w
, screen
.h
)) {
1236 Log
.Debug('Requested new desktop size: ' +
1237 screen
.w
+ 'x' + screen
.h
);
1247 // Re-calculate local scaling
1248 updateScaling: function() {
1249 if (!UI
.rfb
) return;
1251 var resizeMode
= UI
.getSetting('resize');
1252 if (resizeMode
!== 'scale' && resizeMode
!== 'downscale') {
1256 var screen
= UI
.screenSize();
1258 if (!screen
|| !UI
.connected
) {
1262 var downscaleOnly
= resizeMode
=== 'downscale';
1263 UI
.rfb
.autoscale(screen
.w
, screen
.h
, downscaleOnly
);
1267 // Gets the the size of the available viewport in the browser window
1268 screenSize: function() {
1269 var screen
= document
.getElementById('noVNC_screen');
1270 return {w
: screen
.offsetWidth
, h
: screen
.offsetHeight
};
1273 // Normally we only apply the current resize mode after a window resize
1274 // event. This means that when a new connection is opened, there is no
1275 // resize mode active.
1276 // We have to wait until the first FBU because this is where the client
1277 // will find the supported encodings of the server. Some calls later in
1278 // the chain is dependant on knowing the server-capabilities.
1279 initialResize: function(rfb
, fbu
) {
1280 UI
.applyResizeMode();
1281 // After doing this once, we remove the callback.
1282 UI
.rfb
.set_onFBUComplete(function() { });
1291 // Set and configure viewport clipping
1292 setViewClip: function(clip
) {
1293 UI
.updateSetting('view_clip', clip
);
1294 UI
.updateViewClip();
1297 // Update parameters that depend on the viewport clip setting
1298 updateViewClip: function() {
1299 if (!UI
.rfb
) return;
1301 var cur_clip
= UI
.rfb
.get_viewport();
1302 var new_clip
= UI
.getSetting('view_clip');
1304 var resizeSetting
= UI
.getSetting('resize');
1305 if (resizeSetting
=== 'downscale' || resizeSetting
=== 'scale') {
1306 // Disable viewport clipping if we are scaling
1308 } else if (isTouchDevice
) {
1309 // Touch devices usually have shit scrollbars
1313 if (cur_clip
!== new_clip
) {
1314 UI
.rfb
.set_viewport(new_clip
);
1317 var size
= UI
.screenSize();
1319 if (new_clip
&& size
) {
1320 // When clipping is enabled, the screen is limited to
1321 // the size of the browser window.
1322 UI
.rfb
.viewportChangeSize(size
.w
, size
.h
);
1326 // Changing the viewport may change the state of
1327 // the dragging button
1328 UI
.updateViewDrag();
1331 // Handle special cases where viewport clipping is forced on/off or locked
1332 enableDisableViewClip: function() {
1333 var resizeSetting
= UI
.getSetting('resize');
1334 // Disable clipping if we are scaling, connected or on touch
1335 if (resizeSetting
=== 'downscale' || resizeSetting
=== 'scale' ||
1337 UI
.disableSetting('view_clip');
1339 UI
.enableSetting('view_clip');
1349 toggleViewDrag: function() {
1350 if (!UI
.rfb
) return;
1352 var drag
= UI
.rfb
.get_viewportDrag();
1353 UI
.setViewDrag(!drag
);
1356 // Set the view drag mode which moves the viewport on mouse drags
1357 setViewDrag: function(drag
) {
1358 if (!UI
.rfb
) return;
1360 UI
.rfb
.set_viewportDrag(drag
);
1362 UI
.updateViewDrag();
1365 updateViewDrag: function() {
1366 var clipping
= false;
1368 if (!UI
.connected
) return;
1370 // Check if viewport drag is possible. It is only possible
1371 // if the remote display is clipping the client display.
1372 if (UI
.rfb
.get_viewport() &&
1373 UI
.rfb
.clippingDisplay()) {
1377 var viewDragButton
= document
.getElementById('noVNC_view_drag_button');
1380 UI
.rfb
.get_viewportDrag()) {
1381 // The size of the remote display is the same or smaller
1382 // than the client display. Make sure viewport drag isn't
1383 // active when it can't be used.
1384 UI
.rfb
.set_viewportDrag(false);
1387 if (UI
.rfb
.get_viewportDrag()) {
1388 viewDragButton
.classList
.add("noVNC_selected");
1390 viewDragButton
.classList
.remove("noVNC_selected");
1393 // Different behaviour for touch vs non-touch
1394 // The button is disabled instead of hidden on touch devices
1395 if (isTouchDevice
) {
1396 viewDragButton
.classList
.remove("noVNC_hidden");
1399 viewDragButton
.disabled
= false;
1401 viewDragButton
.disabled
= true;
1404 viewDragButton
.disabled
= false;
1407 viewDragButton
.classList
.remove("noVNC_hidden");
1409 viewDragButton
.classList
.add("noVNC_hidden");
1420 showVirtualKeyboard: function() {
1421 if (!isTouchDevice
) return;
1423 var input
= document
.getElementById('noVNC_keyboardinput');
1425 if (document
.activeElement
== input
) return;
1430 var l
= input
.value
.length
;
1431 // Move the caret to the end
1432 input
.setSelectionRange(l
, l
);
1433 } catch (err
) {} // setSelectionRange is undefined in Google Chrome
1436 hideVirtualKeyboard: function() {
1437 if (!isTouchDevice
) return;
1439 var input
= document
.getElementById('noVNC_keyboardinput');
1441 if (document
.activeElement
!= input
) return;
1446 toggleVirtualKeyboard: function () {
1447 if (document
.getElementById('noVNC_keyboard_button')
1448 .classList
.contains("noVNC_selected")) {
1449 UI
.hideVirtualKeyboard();
1451 UI
.showVirtualKeyboard();
1455 onfocusVirtualKeyboard: function(event
) {
1456 document
.getElementById('noVNC_keyboard_button')
1457 .classList
.add("noVNC_selected");
1460 onblurVirtualKeyboard: function(event
) {
1461 document
.getElementById('noVNC_keyboard_button')
1462 .classList
.remove("noVNC_selected");
1465 keepVirtualKeyboard: function(event
) {
1466 var input
= document
.getElementById('noVNC_keyboardinput');
1468 // Only prevent focus change if the virtual keyboard is active
1469 if (document
.activeElement
!= input
) {
1473 // Only allow focus to move to other elements that need
1474 // focus to function properly
1475 if (event
.target
.form
!== undefined) {
1476 switch (event
.target
.type
) {
1485 case 'select-multiple':
1490 // The default action of touchstart is to generate other
1491 // events, which other elements might depend on. So we can't
1492 // blindly prevent that. Instead restore focus right away.
1493 if (event
.type
=== "touchstart") {
1494 setTimeout(input
.focus
.bind(input
));
1496 event
.preventDefault();
1500 keyboardinputReset: function() {
1501 var kbi
= document
.getElementById('noVNC_keyboardinput');
1502 kbi
.value
= new Array(UI
.defaultKeyboardinputLen
).join("_");
1503 UI
.lastKeyboardinput
= kbi
.value
;
1506 keyEvent: function (keysym
, code
, down
) {
1507 if (!UI
.rfb
) return;
1509 UI
.rfb
.sendKey(keysym
, code
, down
);
1512 // When normal keyboard events are left uncought, use the input events from
1513 // the keyboardinput element instead and generate the corresponding key events.
1514 // This code is required since some browsers on Android are inconsistent in
1515 // sending keyCodes in the normal keyboard events when using on screen keyboards.
1516 keyInput: function(event
) {
1518 if (!UI
.rfb
) return;
1520 var newValue
= event
.target
.value
;
1522 if (!UI
.lastKeyboardinput
) {
1523 UI
.keyboardinputReset();
1525 var oldValue
= UI
.lastKeyboardinput
;
1529 // Try to check caret position since whitespace at the end
1530 // will not be considered by value.length in some browsers
1531 newLen
= Math
.max(event
.target
.selectionStart
, newValue
.length
);
1533 // selectionStart is undefined in Google Chrome
1534 newLen
= newValue
.length
;
1536 var oldLen
= oldValue
.length
;
1539 var inputs
= newLen
- oldLen
;
1541 backspaces
= -inputs
;
1546 // Compare the old string with the new to account for
1547 // text-corrections or other input that modify existing text
1549 for (i
= 0; i
< Math
.min(oldLen
, newLen
); i
++) {
1550 if (newValue
.charAt(i
) != oldValue
.charAt(i
)) {
1551 inputs
= newLen
- i
;
1552 backspaces
= oldLen
- i
;
1557 // Send the key events
1558 for (i
= 0; i
< backspaces
; i
++) {
1559 UI
.rfb
.sendKey(KeyTable
.XK_BackSpace
, "Backspace");
1561 for (i
= newLen
- inputs
; i
< newLen
; i
++) {
1562 UI
.rfb
.sendKey(keysyms
.lookup(newValue
.charCodeAt(i
)));
1565 // Control the text content length in the keyboardinput element
1566 if (newLen
> 2 * UI
.defaultKeyboardinputLen
) {
1567 UI
.keyboardinputReset();
1568 } else if (newLen
< 1) {
1569 // There always have to be some text in the keyboardinput
1570 // element with which backspace can interact.
1571 UI
.keyboardinputReset();
1572 // This sometimes causes the keyboard to disappear for a second
1573 // but it is required for the android keyboard to recognize that
1574 // text has been added to the field
1575 event
.target
.blur();
1576 // This has to be ran outside of the input handler in order to work
1577 setTimeout(event
.target
.focus
.bind(event
.target
), 0);
1579 UI
.lastKeyboardinput
= newValue
;
1589 openExtraKeys: function() {
1590 UI
.closeAllPanels();
1591 UI
.openControlbar();
1593 document
.getElementById('noVNC_modifiers')
1594 .classList
.add("noVNC_open");
1595 document
.getElementById('noVNC_toggle_extra_keys_button')
1596 .classList
.add("noVNC_selected");
1599 closeExtraKeys: function() {
1600 document
.getElementById('noVNC_modifiers')
1601 .classList
.remove("noVNC_open");
1602 document
.getElementById('noVNC_toggle_extra_keys_button')
1603 .classList
.remove("noVNC_selected");
1606 toggleExtraKeys: function() {
1607 if(document
.getElementById('noVNC_modifiers')
1608 .classList
.contains("noVNC_open")) {
1609 UI
.closeExtraKeys();
1615 sendEsc: function() {
1616 UI
.rfb
.sendKey(KeyTable
.XK_Escape
, "Escape");
1619 sendTab: function() {
1620 UI
.rfb
.sendKey(KeyTable
.XK_Tab
);
1623 toggleCtrl: function() {
1624 var btn
= document
.getElementById('noVNC_toggle_ctrl_button');
1625 if (btn
.classList
.contains("noVNC_selected")) {
1626 UI
.rfb
.sendKey(KeyTable
.XK_Control_L
, "ControlLeft", false);
1627 btn
.classList
.remove("noVNC_selected");
1629 UI
.rfb
.sendKey(KeyTable
.XK_Control_L
, "ControlLeft", true);
1630 btn
.classList
.add("noVNC_selected");
1634 toggleAlt: function() {
1635 var btn
= document
.getElementById('noVNC_toggle_alt_button');
1636 if (btn
.classList
.contains("noVNC_selected")) {
1637 UI
.rfb
.sendKey(KeyTable
.XK_Alt_L
, "AltLeft", false);
1638 btn
.classList
.remove("noVNC_selected");
1640 UI
.rfb
.sendKey(KeyTable
.XK_Alt_L
, "AltLeft", true);
1641 btn
.classList
.add("noVNC_selected");
1645 sendCtrlAltDel: function() {
1646 UI
.rfb
.sendCtrlAltDel();
1655 setMouseButton: function(num
) {
1656 var view_only
= UI
.rfb
.get_view_only();
1657 if (UI
.rfb
&& !view_only
) {
1658 UI
.rfb
.set_touchButton(num
);
1661 var blist
= [0, 1,2,4];
1662 for (var b
= 0; b
< blist
.length
; b
++) {
1663 var button
= document
.getElementById('noVNC_mouse_button' +
1665 if (blist
[b
] === num
&& !view_only
) {
1666 button
.classList
.remove("noVNC_hidden");
1668 button
.classList
.add("noVNC_hidden");
1673 updateLocalCursor: function() {
1674 if (!UI
.rfb
) return;
1675 UI
.rfb
.set_local_cursor(UI
.getSetting('cursor'));
1678 updateViewOnly: function() {
1679 if (!UI
.rfb
) return;
1680 UI
.rfb
.set_view_only(UI
.getSetting('view_only'));
1683 updateLogging: function() {
1684 WebUtil
.init_logging(UI
.getSetting('logging'));
1687 updateSessionSize: function(rfb
, width
, height
) {
1688 UI
.updateViewClip();
1693 fixScrollbars: function() {
1694 // This is a hack because Chrome screws up the calculation
1695 // for when scrollbars are needed. So to fix it we temporarily
1696 // toggle them off and on.
1697 var screen
= document
.getElementById('noVNC_screen');
1698 screen
.style
.overflow
= 'hidden';
1699 // Force Chrome to recalculate the layout by asking for
1700 // an element's dimensions
1701 screen
.getBoundingClientRect();
1702 screen
.style
.overflow
= "";
1705 updateDesktopName: function(rfb
, name
) {
1706 UI
.desktopName
= name
;
1707 // Display the desktop name in the document title
1708 document
.title
= name
+ " - noVNC";
1711 bell: function(rfb
) {
1712 if (WebUtil
.getConfigVar('bell', 'on') === 'on') {
1713 var promise
= document
.getElementById('noVNC_bell').play();
1714 // The standards disagree on the return value here
1716 promise
.catch(function(e
) {
1717 if (e
.name
=== "NotAllowedError") {
1718 // Ignore when the browser doesn't let us play audio.
1719 // It is common that the browsers require audio to be
1720 // initiated from a user action.
1722 Log
.Error("Unable to play bell: " + e
);
1729 //Helper to add options to dropdown.
1730 addOption: function(selectbox
, text
, value
) {
1731 var optn
= document
.createElement("OPTION");
1734 selectbox
.options
.add(optn
);
1743 // Set up translations
1744 var LINGUAS
= ["de", "el", "nl", "pl", "sv"];
1745 l10n
.setup(LINGUAS
);
1746 if (l10n
.language
!== "en" && l10n
.dictionary
=== undefined) {
1747 WebUtil
.fetchJSON('app/locale/' + l10n
.language
+ '.json', function (translations
) {
1748 l10n
.dictionary
= translations
;
1750 // wait for translations to load before loading the UI