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Fixes #1549, now UA match is limiting out MS Edge and Chrome detection is improved. Also improved UserAgent access by storing it in to a local variable, it was accessed so many times in different places.

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This commit is contained in:
Markku Roponen 2016-04-08 15:47:27 +03:00
parent e83e275a4c
commit a63c8cab92
1 changed files with 10 additions and 5 deletions
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15
js/reveal.js
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@ -32,6 +32,7 @@
HORIZONTAL_SLIDES_SELECTOR = '.slides>section',
VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section',
HOME_SLIDE_SELECTOR = '.slides>section:first-of-type',
UA = navigator.userAgent,
// Configuration defaults, can be overridden at initialization time
config = {
@ -197,6 +198,9 @@
// Client is a mobile device, see #checkCapabilities()
isMobileDevice,
// Client is a desktop Chrome, see #checkCapabilities()
isChrome,
// Throttles mouse wheel navigation
lastMouseWheelStep = 0,
@ -301,7 +305,8 @@
*/
function checkCapabilities() {
isMobileDevice = /(iphone|ipod|ipad|android)/gi.test( navigator.userAgent );
isMobileDevice = /(iphone|ipod|ipad|android)/gi.test( UA );
isChrome = /chrome/i.test( UA ) && !/edge/i.test( UA );
var testElement = document.createElement( 'div' );
@ -324,13 +329,13 @@
// Transitions in the overview are disabled in desktop and
// Safari due to lag
features.overviewTransitions = !/Version\/[\d\.]+.*Safari/.test( navigator.userAgent );
features.overviewTransitions = !/Version\/[\d\.]+.*Safari/.test( UA );
// Flags if we should use zoom instead of transform to scale
// up slides. Zoom produces crisper results but has a lot of
// xbrowser quirks so we only use it in whitelsited browsers.
features.zoom = 'zoom' in testElement.style && !isMobileDevice &&
( /chrome/i.test( navigator.userAgent ) || /Version\/[\d\.]+.*Safari/.test( navigator.userAgent ) );
( isChrome || /Version\/[\d\.]+.*Safari/.test( UA ) );
}
@ -1048,7 +1053,7 @@
// Only support touch for Android, fixes double navigations in
// stock browser
if( navigator.userAgent.match( /android/gi ) ) {
if( UA.match( /android/gi ) ) {
pointerEvents = [ 'touchstart' ];
}
@ -4183,7 +4188,7 @@
}
// There's a bug with swiping on some Android devices unless
// the default action is always prevented
else if( navigator.userAgent.match( /android/gi ) ) {
else if( UA.match( /android/gi ) ) {
event.preventDefault();
}