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ef64917a90
Previously scrollbars were disabled on all touch devices. This meant that they were disabled on Windows when touch was detected. Windows does in fact have useful scrollbars even in touch mode. Fixes Issue #1172
88 lines
3.1 KiB
JavaScript
88 lines
3.1 KiB
JavaScript
/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2018 The noVNC Authors
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* Licensed under MPL 2.0 (see LICENSE.txt)
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*
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* See README.md for usage and integration instructions.
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*/
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import * as Log from './logging.js';
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// Touch detection
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export let isTouchDevice = ('ontouchstart' in document.documentElement) ||
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// requried for Chrome debugger
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(document.ontouchstart !== undefined) ||
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// required for MS Surface
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(navigator.maxTouchPoints > 0) ||
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(navigator.msMaxTouchPoints > 0);
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window.addEventListener('touchstart', function onFirstTouch() {
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isTouchDevice = true;
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window.removeEventListener('touchstart', onFirstTouch, false);
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}, false);
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// The goal is to find a certain physical width, the devicePixelRatio
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// brings us a bit closer but is not optimal.
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export let dragThreshold = 10 * (window.devicePixelRatio || 1);
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let _cursor_uris_supported = null;
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export function supportsCursorURIs() {
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if (_cursor_uris_supported === null) {
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try {
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const target = document.createElement('canvas');
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target.style.cursor = 'url("data:image/x-icon;base64,AAACAAEACAgAAAIAAgA4AQAAFgAAACgAAAAIAAAAEAAAAAEAIAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAD/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////AAAAAAAAAAAAAAAAAAAAAA==") 2 2, default';
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if (target.style.cursor) {
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Log.Info("Data URI scheme cursor supported");
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_cursor_uris_supported = true;
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} else {
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Log.Warn("Data URI scheme cursor not supported");
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_cursor_uris_supported = false;
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}
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} catch (exc) {
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Log.Error("Data URI scheme cursor test exception: " + exc);
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_cursor_uris_supported = false;
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}
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}
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return _cursor_uris_supported;
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}
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export function isMac() {
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return navigator && !!(/mac/i).exec(navigator.platform);
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}
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export function isWindows() {
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return navigator && !!(/win/i).exec(navigator.platform);
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}
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export function isIOS() {
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return navigator &&
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(!!(/ipad/i).exec(navigator.platform) ||
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!!(/iphone/i).exec(navigator.platform) ||
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!!(/ipod/i).exec(navigator.platform));
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}
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export function isAndroid() {
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return navigator && !!(/android/i).exec(navigator.userAgent);
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}
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export function isSafari() {
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return navigator && (navigator.userAgent.indexOf('Safari') !== -1 &&
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navigator.userAgent.indexOf('Chrome') === -1);
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}
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export function isIE() {
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return navigator && !!(/trident/i).exec(navigator.userAgent);
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}
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export function isEdge() {
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return navigator && !!(/edge/i).exec(navigator.userAgent);
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}
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export function isFirefox() {
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return navigator && !!(/firefox/i).exec(navigator.userAgent);
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}
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