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Updated to noVNC 1.3.0, #2603

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Ylian Saint-Hilaire
2021-11-29 12:08:15 -08:00
parent a2ce9b8573
commit 112ebde4f2
75 changed files with 3712 additions and 60022 deletions
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161
public/novnc/core/input/keyboard.js
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@@ -1,6 +1,6 @@
/*
* noVNC: HTML5 VNC client
* Copyright (C) 2018 The noVNC Authors
* Copyright (C) 2019 The noVNC Authors
* Licensed under MPL 2.0 or any later version (see LICENSE.txt)
*/
@@ -20,16 +20,13 @@ export default class Keyboard {
this._keyDownList = {}; // List of depressed keys
// (even if they are happy)
this._pendingKey = null; // Key waiting for keypress
this._altGrArmed = false; // Windows AltGr detection
// keep these here so we can refer to them later
this._eventHandlers = {
'keyup': this._handleKeyUp.bind(this),
'keydown': this._handleKeyDown.bind(this),
'keypress': this._handleKeyPress.bind(this),
'blur': this._allKeysUp.bind(this),
'checkalt': this._checkAlt.bind(this),
};
// ===== EVENT HANDLERS =====
@@ -62,9 +59,7 @@ export default class Keyboard {
}
// Unstable, but we don't have anything else to go on
// (don't use it for 'keypress' events thought since
// WebKit sets it to the same as charCode)
if (e.keyCode && (e.type !== 'keypress')) {
if (e.keyCode) {
// 229 is used for composition events
if (e.keyCode !== 229) {
return 'Platform' + e.keyCode;
@@ -118,9 +113,7 @@ export default class Keyboard {
// We cannot handle keys we cannot track, but we also need
// to deal with virtual keyboards which omit key info
// (iOS omits tracking info on keyup events, which forces us to
// special treat that platform here)
if ((code === 'Unidentified') || browser.isIOS()) {
if (code === 'Unidentified') {
if (keysym) {
// If it's a virtual keyboard then it should be
// sufficient to just send press and release right
@@ -137,7 +130,7 @@ export default class Keyboard {
// keys around a bit to make things more sane for the remote
// server. This method is used by RealVNC and TigerVNC (and
// possibly others).
if (browser.isMac()) {
if (browser.isMac() || browser.isIOS()) {
switch (keysym) {
case KeyTable.XK_Super_L:
keysym = KeyTable.XK_Alt_L;
@@ -164,27 +157,27 @@ export default class Keyboard {
// state change events. That gets extra confusing for CapsLock
// which toggles on each press, but not on release. So pretend
// it was a quick press and release of the button.
if (browser.isMac() && (code === 'CapsLock')) {
if ((browser.isMac() || browser.isIOS()) && (code === 'CapsLock')) {
this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', true);
this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', false);
stopEvent(e);
return;
}
// If this is a legacy browser then we'll need to wait for
// a keypress event as well
// (IE and Edge has a broken KeyboardEvent.key, so we can't
// just check for the presence of that field)
if (!keysym && (!e.key || browser.isIE() || browser.isEdge())) {
this._pendingKey = code;
// However we might not get a keypress event if the key
// is non-printable, which needs some special fallback
// handling
setTimeout(this._handleKeyPressTimeout.bind(this), 10, e);
// Windows doesn't send proper key releases for a bunch of
// Japanese IM keys so we have to fake the release right away
const jpBadKeys = [ KeyTable.XK_Zenkaku_Hankaku,
KeyTable.XK_Eisu_toggle,
KeyTable.XK_Katakana,
KeyTable.XK_Hiragana,
KeyTable.XK_Romaji ];
if (browser.isWindows() && jpBadKeys.includes(keysym)) {
this._sendKeyEvent(keysym, code, true);
this._sendKeyEvent(keysym, code, false);
stopEvent(e);
return;
}
this._pendingKey = null;
stopEvent(e);
// Possible start of AltGr sequence? (see above)
@@ -199,69 +192,6 @@ export default class Keyboard {
this._sendKeyEvent(keysym, code, true);
}
// Legacy event for browsers without code/key
_handleKeyPress(e) {
stopEvent(e);
// Are we expecting a keypress?
if (this._pendingKey === null) {
return;
}
let code = this._getKeyCode(e);
const keysym = KeyboardUtil.getKeysym(e);
// The key we were waiting for?
if ((code !== 'Unidentified') && (code != this._pendingKey)) {
return;
}
code = this._pendingKey;
this._pendingKey = null;
if (!keysym) {
Log.Info('keypress with no keysym:', e);
return;
}
this._sendKeyEvent(keysym, code, true);
}
_handleKeyPressTimeout(e) {
// Did someone manage to sort out the key already?
if (this._pendingKey === null) {
return;
}
let keysym;
const code = this._pendingKey;
this._pendingKey = null;
// We have no way of knowing the proper keysym with the
// information given, but the following are true for most
// layouts
if ((e.keyCode >= 0x30) && (e.keyCode <= 0x39)) {
// Digit
keysym = e.keyCode;
} else if ((e.keyCode >= 0x41) && (e.keyCode <= 0x5a)) {
// Character (A-Z)
let char = String.fromCharCode(e.keyCode);
// A feeble attempt at the correct case
if (e.shiftKey) {
char = char.toUpperCase();
} else {
char = char.toLowerCase();
}
keysym = char.charCodeAt();
} else {
// Unknown, give up
keysym = 0;
}
this._sendKeyEvent(keysym, code, true);
}
_handleKeyUp(e) {
stopEvent(e);
@@ -276,13 +206,28 @@ export default class Keyboard {
}
// See comment in _handleKeyDown()
if (browser.isMac() && (code === 'CapsLock')) {
if ((browser.isMac() || browser.isIOS()) && (code === 'CapsLock')) {
this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', true);
this._sendKeyEvent(KeyTable.XK_Caps_Lock, 'CapsLock', false);
return;
}
this._sendKeyEvent(this._keyDownList[code], code, false);
// Windows has a rather nasty bug where it won't send key
// release events for a Shift button if the other Shift is still
// pressed
if (browser.isWindows() && ((code === 'ShiftLeft') ||
(code === 'ShiftRight'))) {
if ('ShiftRight' in this._keyDownList) {
this._sendKeyEvent(this._keyDownList['ShiftRight'],
'ShiftRight', false);
}
if ('ShiftLeft' in this._keyDownList) {
this._sendKeyEvent(this._keyDownList['ShiftLeft'],
'ShiftLeft', false);
}
}
}
_handleAltGrTimeout() {
@@ -299,26 +244,6 @@ export default class Keyboard {
Log.Debug("<< Keyboard.allKeysUp");
}
// Firefox Alt workaround, see below
_checkAlt(e) {
if (e.altKey) {
return;
}
const target = this._target;
const downList = this._keyDownList;
['AltLeft', 'AltRight'].forEach((code) => {
if (!(code in downList)) {
return;
}
const event = new KeyboardEvent('keyup',
{ key: downList[code],
code: code });
target.dispatchEvent(event);
});
}
// ===== PUBLIC METHODS =====
grab() {
@@ -326,40 +251,18 @@ export default class Keyboard {
this._target.addEventListener('keydown', this._eventHandlers.keydown);
this._target.addEventListener('keyup', this._eventHandlers.keyup);
this._target.addEventListener('keypress', this._eventHandlers.keypress);
// Release (key up) if window loses focus
window.addEventListener('blur', this._eventHandlers.blur);
// Firefox has broken handling of Alt, so we need to poll as
// best we can for releases (still doesn't prevent the menu
// from popping up though as we can't call preventDefault())
if (browser.isWindows() && browser.isFirefox()) {
const handler = this._eventHandlers.checkalt;
['mousedown', 'mouseup', 'mousemove', 'wheel',
'touchstart', 'touchend', 'touchmove',
'keydown', 'keyup'].forEach(type =>
document.addEventListener(type, handler,
{ capture: true,
passive: true }));
}
//Log.Debug("<< Keyboard.grab");
}
ungrab() {
//Log.Debug(">> Keyboard.ungrab");
if (browser.isWindows() && browser.isFirefox()) {
const handler = this._eventHandlers.checkalt;
['mousedown', 'mouseup', 'mousemove', 'wheel',
'touchstart', 'touchend', 'touchmove',
'keydown', 'keyup'].forEach(type => document.removeEventListener(type, handler));
}
this._target.removeEventListener('keydown', this._eventHandlers.keydown);
this._target.removeEventListener('keyup', this._eventHandlers.keyup);
this._target.removeEventListener('keypress', this._eventHandlers.keypress);
window.removeEventListener('blur', this._eventHandlers.blur);
// Release (key up) all keys that are in a down state