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Diffstat (limited to 'public/assets/javascripts/vendor/polyfill.js')
| -rw-r--r-- | public/assets/javascripts/vendor/polyfill.js | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/public/assets/javascripts/vendor/polyfill.js b/public/assets/javascripts/vendor/polyfill.js new file mode 100644 index 0000000..f97e438 --- /dev/null +++ b/public/assets/javascripts/vendor/polyfill.js @@ -0,0 +1,80 @@ +// Check if supports 3D transforms +function has3d(){ + var el = $('<p>')[0], $iframe = $('<iframe>'), has3d, t, + transforms = { + 'webkitTransform': '-webkit-transform', + 'OTransform': '-o-transform', + 'msTransform': '-ms-transform', + 'transform': 'transform' + }; + + // Add it to the body to get the computed style + // Sandbox it inside an iframe to avoid Android Browser quirks + $iframe.appendTo('body').contents().find('body').append( el ); + + for (t in transforms) { + if (el.style[t] !== undefined) { + el.style[t] = 'translate3d(1px,1px,1px)'; + has3d = window.getComputedStyle(el).getPropertyValue(transforms[t]); + } + } + + $iframe.remove(); + + return has3d !== undefined && has3d.length > 0 && has3d !== "none"; +} + +// Identify browser based on useragent string +(function( ua ) { + ua = ua.toLowerCase(); + var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) || + /(webkit)[ \/]([\w.]+)/.exec( ua ) || + /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) || + /(msie) ([\w.]+)/.exec( ua ) || + ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) || + []; + var matched = { + browser: match[ 1 ] || "", + version: match[ 2 ] || "0" + }; + browser = {}; + if ( matched.browser ) { + browser[ matched.browser ] = true; + browser.version = matched.version; + } + // Chrome is Webkit, but Webkit is also Safari. + if ( browser.chrome ) { + browser.webkit = true; + } else if ( browser.webkit ) { + browser.safari = true; + } + $.browser = browser; + return browser; +})( navigator.userAgent ); + + +// rAF shim +(function() { + var lastTime = 0; + var vendors = ['ms', 'moz', 'webkit', 'o']; + for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) { + window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame']; + window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] + || window[vendors[x]+'CancelRequestAnimationFrame']; + } + + if (!window.requestAnimationFrame) + window.requestAnimationFrame = function(callback, element) { + var currTime = new Date().getTime(); + var timeToCall = Math.max(0, 16 - (currTime - lastTime)); + var id = window.setTimeout(function() { callback(currTime + timeToCall); }, + timeToCall); + lastTime = currTime + timeToCall; + return id; + }; + + if (!window.cancelAnimationFrame) + window.cancelAnimationFrame = function(id) { + clearTimeout(id); + }; +}()); |
