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