diff options
Diffstat (limited to 'js/reveal.js')
| -rw-r--r-- | js/reveal.js | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/js/reveal.js b/js/reveal.js index 8811a4f..7a3b0e0 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -136,11 +136,8 @@ var Reveal = (function(){ // Cached references to DOM elements dom = {}, - // Client support for CSS 3D transforms, see #checkCapabilities() - supports3DTransforms, - - // Client support for CSS 2D transforms, see #checkCapabilities() - supports2DTransforms, + // Features supported by the browser, see #checkCapabilities() + features = {}, // Client is a mobile device, see #checkCapabilities() isMobileDevice, @@ -183,7 +180,7 @@ var Reveal = (function(){ checkCapabilities(); - if( !supports2DTransforms && !supports3DTransforms ) { + if( !features.transforms2d && !features.transforms3d ) { document.body.setAttribute( 'class', 'no-transforms' ); // If the browser doesn't support core features we won't be @@ -212,18 +209,22 @@ var Reveal = (function(){ */ function checkCapabilities() { - supports3DTransforms = 'WebkitPerspective' in document.body.style || + features.transforms3d = 'WebkitPerspective' in document.body.style || 'MozPerspective' in document.body.style || 'msPerspective' in document.body.style || 'OPerspective' in document.body.style || 'perspective' in document.body.style; - supports2DTransforms = 'WebkitTransform' in document.body.style || + features.transforms2d = 'WebkitTransform' in document.body.style || 'MozTransform' in document.body.style || 'msTransform' in document.body.style || 'OTransform' in document.body.style || 'transform' in document.body.style; + features.requestAnimationFrame = typeof window.requestAnimationFrame === 'function'; + + features.canvas = !!document.createElement( 'canvas' ).getContext; + isMobileDevice = navigator.userAgent.match( /(iphone|ipod|android)/gi ); } @@ -523,7 +524,7 @@ var Reveal = (function(){ if( typeof options === 'object' ) extend( config, options ); // Force linear transition based on browser capabilities - if( supports3DTransforms === false ) config.transition = 'linear'; + if( features.transforms3d === false ) config.transition = 'linear'; dom.wrapper.classList.add( config.transition ); @@ -886,7 +887,7 @@ var Reveal = (function(){ */ function enableRollingLinks() { - if( supports3DTransforms && !( 'msPerspective' in document.body.style ) ) { + if( features.transforms3d && !( 'msPerspective' in document.body.style ) ) { var anchors = document.querySelectorAll( SLIDES_SELECTOR + ' a:not(.image)' ); for( var i = 0, len = anchors.length; i < len; i++ ) { @@ -2472,7 +2473,7 @@ var Reveal = (function(){ event.preventDefault(); } // ESC or O key - else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && supports3DTransforms ) { + else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && features.transforms3d ) { if( dom.preview ) { closePreview(); } |