Proper detection of touch-capability on Windows 8/IE 10/11

diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index 8f01cdcef84fdd9483407029b7d5583f9f5edcba..89b98856f7070832b16114814452f8803ca0f394 100755 (executable)
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -133,7 +133,7 @@ String.prototype.hashCode = function() {
        }
        
        jQuery.browser = browser;
-       jQuery.browser.touch = (!!('ontouchstart' in window) || !!('msMaxTouchPoints' in window.navigator));
+       jQuery.browser.touch = (!!('ontouchstart' in window) || (!!('msMaxTouchPoints' in window.navigator) && window.navigator.msMaxTouchPoints > 0));
        
        // detect smartphones
        jQuery.browser.smartphone = ($('html').css('caption-side') == 'bottom');