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7 lines
2.7 KiB
JavaScript
7 lines
2.7 KiB
JavaScript
/*!
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* CTC Gradient Functions
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* Adapted from Iris
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* Copyright (c) 2012–2014 Automattic.
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* Licensed under the GPLv2 license.
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*/
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(function(i,f){var d,q,b,a,o,e,l,c,h;l=navigator.userAgent.toLowerCase();c=navigator.appName==="Microsoft Internet Explorer";h=c?parseFloat(l.match(/msie ([0-9]{1,}[\.0-9]{0,})/)[1]):0;q=(c&&h<10);a=["-moz-","-webkit-","-o-","-ms-"];p();if(q&&h<=7){i.fn.ctcgrad=i.noop;i.support.ctcgrad=false;return}i.support.ctcgrad=true;function p(){var r,s;if(q){b="filter"}else{r=i('<div id="ctcgrad-gradtest" />');s="linear-gradient(top,#fff,#000)";i.each(a,function(t,u){r.css("backgroundImage",u+s);if(r.css("backgroundImage").match("gradient")){b=t;return false}});if(b===false){r.css("background","-webkit-gradient(linear,0% 0%,0% 100%,from(#fff),to(#000))");if(r.css("backgroundImage").match("gradient")){b="webkit"}}r.remove()}}function n(r,s){r=(r.match(/(\d+deg|top|left|bottom|right)( (top|left|bottom|right))?/)?r:"top");s=i.isArray(s)?s:Array.prototype.slice.call(arguments,1);if(b==="webkit"){return m(r,s)}else{return a[b]+"linear-gradient("+r+", "+s.join(", ")+")"}}function g(x,A){var w,C,u,r,v,B,z,y,t,s;x=(x==="left")?"left":"top";A=i.isArray(A)?A:Array.prototype.slice.call(arguments,1);w=(x==="top")?0:1;C=i(this);u=A.length-1;r="filter";v=(w===1)?"left":"top";B=(w===1)?"right":"bottom";z=(w===1)?"height":"width";if(C.css("position")==="static"){C.css({position:"relative"})}A=j(A);i.each(A,function(D,F){var E,G;if(D===u){return false}E=A[D+1];if(F.stop===E.stop){return}G=100-parseFloat(E.stop)+"%";F.octoHex=new Color(F.color).toIEOctoHex();E.octoHex=new Color(E.color).toIEOctoHex();s="progid:DXImageTransform.Microsoft.Gradient(GradientType="+w+", StartColorStr='"+F.octoHex+"', EndColorStr='"+E.octoHex+"')"});return s}function m(r,s){var t=[];r=(r==="top")?"0% 0%,0% 100%,":"0% 100%,100% 100%,";s=j(s);i.each(s,function(u,v){t.push("color-stop("+(parseFloat(v.stop)/100)+", "+v.color+")")});return"-webkit-gradient(linear,"+r+t.join(",")+")"}function j(t){var s=[],u=[],r=[],v=t.length-1;i.each(t,function(y,A){var w=A,z=false,x=A.match(/1?[0-9]{1,2}%$/);if(x){w=A.replace(/\s?1?[0-9]{1,2}%$/,"");z=x.shift()}s.push(w);u.push(z)});if(u[0]===false){u[0]="0%"}if(u[v]===false){u[v]="100%"}u=k(u);i.each(u,function(w){r[w]={color:s[w],stop:u[w]}});return r}function k(z){var u=0,y=z.length-1,t=0,w=false,r,x,s,v;if(z.length<=2||i.inArray(false,z)<0){return z}while(t<z.length-1){if(!w&&z[t]===false){u=t-1;w=true}else{if(w&&z[t]!==false){y=t;t=z.length}}t++}x=y-u;v=parseInt(z[u].replace("%"),10);r=(parseFloat(z[y].replace("%"))-v)/x;t=u+1;s=1;while(t<y){z[t]=(v+(s*r))+"%";s++;t++}return k(z)}i.fn.ctcgrad=function(r){var s=arguments;if(q){i(this).css("filter",g.apply(this,s))}else{i(this).css("backgroundImage",n.apply(this,s))}}}(jQuery)); |