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jquery.reflection.js - Based on reflection.js v1.11 by Christophe Beyls
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/*! | |
reflection.js for jQuery v1.12 | |
(c) 2006-2013 Christophe Beyls <http://www.digitalia.be> | |
MIT-style license. | |
*/ | |
;(function($) { | |
$.fn.reflect = function(options) { | |
options = $.extend({ | |
height: 1/3, | |
opacity: 0.5 | |
}, options); | |
return this.unreflect().each(function() { | |
var img = this; | |
if (img.tagName === 'IMG') { | |
function doReflect() { | |
var imageWidth = img.width, imageHeight = img.height, reflection, reflectionHeight, wrapper, context, gradient; | |
reflectionHeight = Math.floor((options.height > 1) ? Math.min(imageHeight, options.height) : imageHeight * options.height); | |
reflection = $("<canvas />")[0]; | |
if (reflection.getContext) { | |
context = reflection.getContext("2d"); | |
try { | |
$(reflection).attr({width: imageWidth, height: reflectionHeight}); | |
context.save(); | |
context.translate(0, imageHeight-1); | |
context.scale(1, -1); | |
context.drawImage(img, 0, 0, imageWidth, imageHeight); | |
context.restore(); | |
context.globalCompositeOperation = "destination-out"; | |
gradient = context.createLinearGradient(0, 0, 0, reflectionHeight); | |
gradient.addColorStop(0, "rgba(255, 255, 255, " + (1 - options.opacity) + ")"); | |
gradient.addColorStop(1, "rgba(255, 255, 255, 1.0)"); | |
context.fillStyle = gradient; | |
context.rect(0, 0, imageWidth, reflectionHeight); | |
context.fill(); | |
} catch(e) { | |
return; | |
} | |
} else { | |
if (!window.ActiveXObject) return; | |
reflection = $("<img />").attr("src", img.src).css({ | |
width: imageWidth, | |
height: imageHeight, | |
marginBottom: reflectionHeight - imageHeight, | |
filter: "FlipV progid:DXImageTransform.Microsoft.Alpha(Opacity=" + (options.opacity * 100) + ", FinishOpacity=0, Style=1, StartX=0, StartY=0, FinishX=0, FinishY=" + (reflectionHeight / imageHeight * 100) + ")" | |
})[0]; | |
} | |
$(reflection).css({display: "block", border: 0}); | |
wrapper = $((img.parentNode.tagName === 'A') ? "<span />" : "<div />").insertAfter(img).append([img, reflection])[0]; | |
wrapper.className = img.className; | |
$(img).data("reflected", wrapper.style.cssText = img.style.cssText); | |
$(wrapper).css({width: imageWidth, height: imageHeight + reflectionHeight, overflow: "hidden"}); | |
img.style.cssText = "display: block; border: 0px"; | |
img.className = "reflected"; | |
} | |
if (img.complete) doReflect(); | |
else $(img).load(doReflect); | |
} | |
}); | |
} | |
$.fn.unreflect = function() { | |
return this.unbind("load").each(function() { | |
var img = this, reflected = $(this).data("reflected"), wrapper; | |
if (reflected !== undefined) { | |
wrapper = img.parentNode; | |
img.className = wrapper.className; | |
img.style.cssText = reflected; | |
$(img).data("reflected", null); | |
wrapper.parentNode.replaceChild(img, wrapper); | |
} | |
}); | |
} | |
})(window.jQuery || window.Zepto); |
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