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Created August 5, 2013 22:00
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what the fuck why doesnt this work oh god i cannot javascript`
Raw
blur.min.js
/*
* Blur.js
* Copyright Jacob Kelley
* MIT License
*/
(function ($) {
$.fn.blurjs = function (options) {
var canvas = document.createElement('canvas');
var isCached = false;
var selector = ($(this).selector).replace(/[^a-zA-Z0-9]/g, "");
if(!canvas.getContext) {
return;
}
options = $.extend({
source: 'body',
radius: 5,
overlay: '',
offset: {
x: 0,
y: 0
},
optClass: '',
cache: false,
cacheKeyPrefix: 'blurjs-',
draggable: false,
debug: false
}, options);
// Stackblur, courtesy of Mario Klingemann: http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
var mul_table = [512, 512, 456, 512, 328, 456, 335, 512, 405, 328, 271, 456, 388, 335, 292, 512, 454, 405, 364, 328, 298, 271, 496, 456, 420, 388, 360, 335, 312, 292, 273, 512, 482, 454, 428, 405, 383, 364, 345, 328, 312, 298, 284, 271, 259, 496, 475, 456, 437, 420, 404, 388, 374, 360, 347, 335, 323, 312, 302, 292, 282, 273, 265, 512, 497, 482, 468, 454, 441, 428, 417, 405, 394, 383, 373, 364, 354, 345, 337, 328, 320, 312, 305, 298, 291, 284, 278, 271, 265, 259, 507, 496, 485, 475, 465, 456, 446, 437, 428, 420, 412, 404, 396, 388, 381, 374, 367, 360, 354, 347, 341, 335, 329, 323, 318, 312, 307, 302, 297, 292, 287, 282, 278, 273, 269, 265, 261, 512, 505, 497, 489, 482, 475, 468, 461, 454, 447, 441, 435, 428, 422, 417, 411, 405, 399, 394, 389, 383, 378, 373, 368, 364, 359, 354, 350, 345, 341, 337, 332, 328, 324, 320, 316, 312, 309, 305, 301, 298, 294, 291, 287, 284, 281, 278, 274, 271, 268, 265, 262, 259, 257, 507, 501, 496, 491, 485, 480, 475, 470, 465, 460, 456, 451, 446, 442, 437, 433, 428, 424, 420, 416, 412, 408, 404, 400, 396, 392, 388, 385, 381, 377, 374, 370, 367, 363, 360, 357, 354, 350, 347, 344, 341, 338, 335, 332, 329, 326, 323, 320, 318, 315, 312, 310, 307, 304, 302, 299, 297, 294, 292, 289, 287, 285, 282, 280, 278, 275, 273, 271, 269, 267, 265, 263, 261, 259];
var shg_table = [9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24];
function stackBlurCanvasRGB(a, b, c, d, f, g) {
if(isNaN(g) || g < 1) return;
g |= 0;
var h = a.getContext("2d");
var j;
try {
try {
j = h.getImageData(b, c, d, f)
} catch(e) {
try {
netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
j = h.getImageData(b, c, d, f)
} catch(e) {
alert("Cannot access local image");
throw new Error("unable to access local image data: " + e);
}
}
} catch(e) {
alert("Cannot access image");
throw new Error("unable to access image data: " + e);
}
var k = j.data;
var x, y, i, p, yp, yi, yw, r_sum, g_sum, b_sum, r_out_sum, g_out_sum, b_out_sum, r_in_sum, g_in_sum, b_in_sum, pr, pg, pb, rbs;
var l = g + g + 1;
var m = d << 2;
var n = d - 1;
var o = f - 1;
var q = g + 1;
var r = q * (q + 1) / 2;
var s = new BlurStack();
var t = s;
for(i = 1; i < l; i++) {
t = t.next = new BlurStack();
if(i == q) var u = t
}
t.next = s;
var v = null;
var w = null;
yw = yi = 0;
var z = mul_table[g];
var A = shg_table[g];
for(y = 0; y < f; y++) {
r_in_sum = g_in_sum = b_in_sum = r_sum = g_sum = b_sum = 0;
r_out_sum = q * (pr = k[yi]);
g_out_sum = q * (pg = k[yi + 1]);
b_out_sum = q * (pb = k[yi + 2]);
r_sum += r * pr;
g_sum += r * pg;
b_sum += r * pb;
t = s;
for(i = 0; i < q; i++) {
t.r = pr;
t.g = pg;
t.b = pb;
t = t.next
}
for(i = 1; i < q; i++) {
p = yi + ((n < i ? n : i) << 2);
r_sum += (t.r = (pr = k[p])) * (rbs = q - i);
g_sum += (t.g = (pg = k[p + 1])) * rbs;
b_sum += (t.b = (pb = k[p + 2])) * rbs;
r_in_sum += pr;
g_in_sum += pg;
b_in_sum += pb;
t = t.next
}
v = s;
w = u;
for(x = 0; x < d; x++) {
k[yi] = (r_sum * z) >> A;
k[yi + 1] = (g_sum * z) >> A;
k[yi + 2] = (b_sum * z) >> A;
r_sum -= r_out_sum;
g_sum -= g_out_sum;
b_sum -= b_out_sum;
r_out_sum -= v.r;
g_out_sum -= v.g;
b_out_sum -= v.b;
p = (yw + ((p = x + g + 1) < n ? p : n)) << 2;
r_in_sum += (v.r = k[p]);
g_in_sum += (v.g = k[p + 1]);
b_in_sum += (v.b = k[p + 2]);
r_sum += r_in_sum;
g_sum += g_in_sum;
b_sum += b_in_sum;
v = v.next;
r_out_sum += (pr = w.r);
g_out_sum += (pg = w.g);
b_out_sum += (pb = w.b);
r_in_sum -= pr;
g_in_sum -= pg;
b_in_sum -= pb;
w = w.next;
yi += 4
}
yw += d
}
for(x = 0; x < d; x++) {
g_in_sum = b_in_sum = r_in_sum = g_sum = b_sum = r_sum = 0;
yi = x << 2;
r_out_sum = q * (pr = k[yi]);
g_out_sum = q * (pg = k[yi + 1]);
b_out_sum = q * (pb = k[yi + 2]);
r_sum += r * pr;
g_sum += r * pg;
b_sum += r * pb;
t = s;
for(i = 0; i < q; i++) {
t.r = pr;
t.g = pg;
t.b = pb;
t = t.next
}
yp = d;
for(i = 1; i <= g; i++) {
yi = (yp + x) << 2;
r_sum += (t.r = (pr = k[yi])) * (rbs = q - i);
g_sum += (t.g = (pg = k[yi + 1])) * rbs;
b_sum += (t.b = (pb = k[yi + 2])) * rbs;
r_in_sum += pr;
g_in_sum += pg;
b_in_sum += pb;
t = t.next;
if(i < o) {
yp += d
}
}
yi = x;
v = s;
w = u;
for(y = 0; y < f; y++) {
p = yi << 2;
k[p] = (r_sum * z) >> A;
k[p + 1] = (g_sum * z) >> A;
k[p + 2] = (b_sum * z) >> A;
r_sum -= r_out_sum;
g_sum -= g_out_sum;
b_sum -= b_out_sum;
r_out_sum -= v.r;
g_out_sum -= v.g;
b_out_sum -= v.b;
p = (x + (((p = y + q) < o ? p : o) * d)) << 2;
r_sum += (r_in_sum += (v.r = k[p]));
g_sum += (g_in_sum += (v.g = k[p + 1]));
b_sum += (b_in_sum += (v.b = k[p + 2]));
v = v.next;
r_out_sum += (pr = w.r);
g_out_sum += (pg = w.g);
b_out_sum += (pb = w.b);
r_in_sum -= pr;
g_in_sum -= pg;
b_in_sum -= pb;
w = w.next;
yi += d
}
}
h.putImageData(j, b, c)
}
function BlurStack() {
this.r = 0;
this.g = 0;
this.b = 0;
this.a = 0;
this.next = null
}
return this.each(function () {
var $glue = $(this);
var $source = $(options.source);
var formattedSource = ($source.css('backgroundImage')).replace(/"/g, "").replace(/url\(|\)$/ig, "");
ctx = canvas.getContext('2d');
tempImg = new Image();
tempImg.onload = function () {
if(!isCached) {
canvas.style.display = "none";
canvas.width = tempImg.width;
canvas.height = tempImg.height;
ctx.drawImage(tempImg, 0, 0);
stackBlurCanvasRGB(canvas, 0, 0, canvas.width, canvas.height, options.radius);
if(options.overlay != false) {
ctx.beginPath();
ctx.rect(0, 0, tempImg.width, tempImg.width);
ctx.fillStyle = options.overlay;
ctx.fill();
}
var blurredData = canvas.toDataURL();
if(options.cache) {
try {
if(options.debug) {
console.log('Cache Set');
}
localStorage.setItem(options.cacheKeyPrefix + selector + '-' + formattedSource + '-data-image', blurredData);
} catch(e) {
console.log(e);
}
}
} else {
var blurredData = tempImg.src;
}
var attachment = $source.css('backgroundAttachment');
var position = (attachment == 'fixed') ? '' : '-' + (($glue.offset().left) - ($source.offset().left) - (options.offset.x)) + 'px -' + (($glue.offset().top) - ($source.offset().top) - (options.offset.y)) + 'px';
$glue.css({
'background-image': 'url("' + blurredData + '")',
'background-repeat': $source.css('backgroundRepeat'),
'background-position': position,
'background-attachment': attachment
});
if(options.optClass != false) {
$glue.addClass(options.optClass);
}
if(options.draggable) {
$glue.css({
'background-attachment': 'fixed',
'background-position': '0 0'
});
$glue.draggable();
}
};
Storage.prototype.cacheChecksum = function (opts) {
var newData = '';
for(var key in opts) {
var obj = opts[key];
if(obj.toString() == '[object Object]') {
newData += ((obj.x).toString() + (obj.y).toString() + ",").replace(/[^a-zA-Z0-9]/g, "");
} else {
newData += (obj + ",").replace(/[^a-zA-Z0-9]/g, "");
}
}
var originalData = this.getItem(options.cacheKeyPrefix + selector + '-' + formattedSource + '-options-cache');
if(originalData != newData) {
this.removeItem(options.cacheKeyPrefix + selector + '-' + formattedSource + '-options-cache');
this.setItem(options.cacheKeyPrefix + selector + '-' + formattedSource + '-options-cache', newData);
if(options.debug) {
console.log('Settings Changed, Cache Emptied');
}
}
};
var cachedData = null;
if(options.cache) {
localStorage.cacheChecksum(options);
cachedData = localStorage.getItem(options.cacheKeyPrefix + selector + '-' + formattedSource + '-data-image');
}
if(cachedData != null) {
if(options.debug) {
console.log('Cache Used');
}
isCached = true;
tempImg.src = (cachedData);
} else {
if(options.debug) {
console.log('Source Used');
}
tempImg.src = formattedSource;
}
});
};
})(jQuery);
Raw
index.html
<html>
<body>
<div id="page">
<div id="container">
<div id="post">
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam viverra eros id sem sagittis vulputate at sed arcu. Phasellus non nisl tortor. Praesent tristique mollis ultrices. Vestibulum eu sagittis turpis. Curabitur et congue ligula. Cras eget lacus quis mauris accumsan laoreet ut sit amet tortor. Vivamus vitae porttitor eros. Vivamus pretium dignissim fermentum. Aliquam lobortis lectus volutpat nulla congue eleifend. Fusce eget porta sem.
</p>
</div>
</div>
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
<script type="text/javascript" src="blur.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
<script type="text/javascript">
$(document).ready(function(){
alert("test");
$('#container').blurjs({
source: 'body',
radius: 7,
overlay: 'rgba(255,255,255,0.4)'
});
});
</script>
</html>
</body>
Raw
style.css
#page {
background-image:url('http://www.onlinedesign4u.co.uk/LANDSCAPE_PHOTOS_FP/files/LANDSCAPE-ROBY-2000---75-OP.jpg');
width:100%;
height:800px;
}
#container {
border-left: 0;
border-right: 0;
margin: 0 auto;
max-width: 1600px;
width: 80%;
height: 100%;
}
@jakiestfu
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All images used in Blur.js must have relative file paths instead of absolute ones. Does this help?

I.E. /path/to/image.jpg instead of http://mysite.com/path/to/image.jpg

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