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Code Issues Releases Wiki Activity

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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53
public/novnc/core/util/browser.js
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@ -1,9 +1,11 @@
/*
* noVNC: HTML5 VNC client
* Copyright (C) 2018 The noVNC Authors
* Copyright (C) 2019 The noVNC Authors
* Licensed under MPL 2.0 (see LICENSE.txt)
*
* See README.md for usage and integration instructions.
*
* Browser feature support detection
*/
import * as Log from './logging.js';
@ -31,7 +33,7 @@ try {
const target = document.createElement('canvas');
target.style.cursor = 'url("data:image/x-icon;base64,AAACAAEACAgAAAIAAgA4AQAAFgAAACgAAAAIAAAAEAAAAAEAIAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAD/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////AAAAAAAAAAAAAAAAAAAAAA==") 2 2, default';
if (target.style.cursor) {
if (target.style.cursor.indexOf("url") === 0) {
Log.Info("Data URI scheme cursor supported");
_supportsCursorURIs = true;
} else {
@ -43,14 +45,37 @@ try {
export const supportsCursorURIs = _supportsCursorURIs;
let _supportsImageMetadata = false;
let _hasScrollbarGutter = true;
try {
new ImageData(new Uint8ClampedArray(4), 1, 1);
_supportsImageMetadata = true;
} catch (ex) {
// ignore failure
// Create invisible container
const container = document.createElement('div');
container.style.visibility = 'hidden';
container.style.overflow = 'scroll'; // forcing scrollbars
document.body.appendChild(container);
// Create a div and place it in the container
const child = document.createElement('div');
container.appendChild(child);
// Calculate the difference between the container's full width
// and the child's width - the difference is the scrollbars
const scrollbarWidth = (container.offsetWidth - child.offsetWidth);
// Clean up
container.parentNode.removeChild(container);
_hasScrollbarGutter = scrollbarWidth != 0;
} catch (exc) {
Log.Error("Scrollbar test exception: " + exc);
}
export const supportsImageMetadata = _supportsImageMetadata;
export const hasScrollbarGutter = _hasScrollbarGutter;
/*
* The functions for detection of platforms and browsers below are exported
* but the use of these should be minimized as much as possible.
*
* It's better to use feature detection than platform detection.
*/
export function isMac() {
return navigator && !!(/mac/i).exec(navigator.platform);
@ -67,23 +92,11 @@ export function isIOS() {
!!(/ipod/i).exec(navigator.platform));
}
export function isAndroid() {
return navigator && !!(/android/i).exec(navigator.userAgent);
}
export function isSafari() {
return navigator && (navigator.userAgent.indexOf('Safari') !== -1 &&
navigator.userAgent.indexOf('Chrome') === -1);
}
export function isIE() {
return navigator && !!(/trident/i).exec(navigator.userAgent);
}
export function isEdge() {
return navigator && !!(/edge/i).exec(navigator.userAgent);
}
export function isFirefox() {
return navigator && !!(/firefox/i).exec(navigator.userAgent);
}