70 lines
2.5 KiB
JavaScript
70 lines
2.5 KiB
JavaScript
/*
|
|
* noVNC: HTML5 VNC client
|
|
* Copyright (C) 2012 Joel Martin
|
|
* Licensed under MPL 2.0 (see LICENSE.txt)
|
|
*
|
|
* See README.md for usage and integration instructions.
|
|
*/
|
|
|
|
import * as Log from './logging.js';
|
|
|
|
// Touch detection
|
|
export var isTouchDevice = ('ontouchstart' in document.documentElement) ||
|
|
// requried for Chrome debugger
|
|
(document.ontouchstart !== undefined) ||
|
|
// required for MS Surface
|
|
(navigator.maxTouchPoints > 0) ||
|
|
(navigator.msMaxTouchPoints > 0);
|
|
window.addEventListener('touchstart', function onFirstTouch() {
|
|
isTouchDevice = true;
|
|
window.removeEventListener('touchstart', onFirstTouch, false);
|
|
}, false);
|
|
|
|
var _cursor_uris_supported = null;
|
|
|
|
export function supportsCursorURIs () {
|
|
if (_cursor_uris_supported === null) {
|
|
try {
|
|
var target = document.createElement('canvas');
|
|
target.style.cursor = 'url("data:image/x-icon;base64,AAACAAEACAgAAAIAAgA4AQAAFgAAACgAAAAIAAAAEAAAAAEAIAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAD/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////AAAAAAAAAAAAAAAAAAAAAA==") 2 2, default';
|
|
|
|
if (target.style.cursor) {
|
|
Log.Info("Data URI scheme cursor supported");
|
|
_cursor_uris_supported = true;
|
|
} else {
|
|
Log.Warn("Data URI scheme cursor not supported");
|
|
_cursor_uris_supported = false;
|
|
}
|
|
} catch (exc) {
|
|
Log.Error("Data URI scheme cursor test exception: " + exc);
|
|
_cursor_uris_supported = false;
|
|
}
|
|
}
|
|
|
|
return _cursor_uris_supported;
|
|
};
|
|
|
|
export function isMac() {
|
|
return navigator && !!(/mac/i).exec(navigator.platform);
|
|
}
|
|
|
|
export function isIE() {
|
|
return navigator && !!(/trident/i).exec(navigator.userAgent);
|
|
}
|
|
|
|
export function isEdge() {
|
|
return navigator && !!(/edge/i).exec(navigator.userAgent);
|
|
}
|
|
|
|
export function isWindows() {
|
|
return navigator && !!(/win/i).exec(navigator.platform);
|
|
}
|
|
|
|
export function isIOS() {
|
|
return navigator &&
|
|
(!!(/ipad/i).exec(navigator.platform) ||
|
|
!!(/iphone/i).exec(navigator.platform) ||
|
|
!!(/ipod/i).exec(navigator.platform));
|
|
}
|
|
|