jquery.blurBg.min.js

function stackBlurCanvasRGB(e,t,n,r,i,s){if(isNaN(s)||s<1)return;s|=0;var o=e.getContext("2d");var u;try{try{u=o.getImageData(t,n,r,i)}catch(a){try{netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");u=o.getImageData(t,n,r,i)}catch(a){alert("Cannot access local image");throw new Error("unable to access local image data: "+a);return}}}catch(a){alert("Cannot access image");throw new Error("unable to access image data: "+a)}var f=u.data;var l,c,h,p,d,v,m,g,y,b,w,E,S,x,T,N,C,k,L,A;var O=s+s+1;var M=r<<2;var _=r-1;var D=i-1;var P=s+1;var H=P*(P+1)/2;var B=new BlurStack;var j=B;for(h=1;h<O;h++){j=j.next=new BlurStack;if(h==P)var F=j}j.next=B;var I=null;var q=null;m=v=0;var R=mul_table[s];var U=shg_table[s];for(c=0;c<i;c++){x=T=N=g=y=b=0;w=P*(C=f[v]);E=P*(k=f[v+1]);S=P*(L=f[v+2]);g+=H*C;y+=H*k;b+=H*L;j=B;for(h=0;h<P;h++){j.r=C;j.g=k;j.b=L;j=j.next}for(h=1;h<P;h++){p=v+((_<h?_:h)<<2);g+=(j.r=C=f[p])*(A=P-h);y+=(j.g=k=f[p+1])*A;b+=(j.b=L=f[p+2])*A;x+=C;T+=k;N+=L;j=j.next}I=B;q=F;for(l=0;l<r;l++){f[v]=g*R>>U;f[v+1]=y*R>>U;f[v+2]=b*R>>U;g-=w;y-=E;b-=S;w-=I.r;E-=I.g;S-=I.b;p=m+((p=l+s+1)<_?p:_)<<2;x+=I.r=f[p];T+=I.g=f[p+1];N+=I.b=f[p+2];g+=x;y+=T;b+=N;I=I.next;w+=C=q.r;E+=k=q.g;S+=L=q.b;x-=C;T-=k;N-=L;q=q.next;v+=4}m+=r}for(l=0;l<r;l++){T=N=x=y=b=g=0;v=l<<2;w=P*(C=f[v]);E=P*(k=f[v+1]);S=P*(L=f[v+2]);g+=H*C;y+=H*k;b+=H*L;j=B;for(h=0;h<P;h++){j.r=C;j.g=k;j.b=L;j=j.next}d=r;for(h=1;h<=s;h++){v=d+l<<2;g+=(j.r=C=f[v])*(A=P-h);y+=(j.g=k=f[v+1])*A;b+=(j.b=L=f[v+2])*A;x+=C;T+=k;N+=L;j=j.next;if(h<D){d+=r}}v=l;I=B;q=F;for(c=0;c<i;c++){p=v<<2;f[p]=g*R>>U;f[p+1]=y*R>>U;f[p+2]=b*R>>U;g-=w;y-=E;b-=S;w-=I.r;E-=I.g;S-=I.b;p=l+((p=c+P)<D?p:D)*r<<2;g+=x+=I.r=f[p];y+=T+=I.g=f[p+1];b+=N+=I.b=f[p+2];I=I.next;w+=C=q.r;E+=k=q.g;S+=L=q.b;x-=C;T-=k;N-=L;q=q.next;v+=r}}o.putImageData(u,t,n)}function BlurStack(){this.r=0;this.g=0;this.b=0;this.a=0;this.next=null}(function(e,t,n){"use strict";function u(e,t,n){var r=e.runtimeStyle&&e.runtimeStyle[t],i,s=e.style;if(!/^-?[0-9]+\.?[0-9]*(?:px)?$/i.test(n)&&/^-?\d/.test(n)){i=s.left;if(r){e.runtimeStyle.left=e.currentStyle.left}s.left=t==="fontSize"?"1em":n||0;n=s.pixelLeft+"px";s.left=i;if(r){e.runtimeStyle.left=r}}if(!/^(thin|medium|thick)$/i.test(n)){return Math.round(parseFloat(n))+"px"}return n}function a(e){return parseInt(e,10)}function f(e,t,i,s){e=(e||"").split(",");e=e[s||0]||e[0]||"auto";e=r.Util.trimText(e).split(" ");if(i==="backgroundSize"&&(!e[0]||e[0].match(/cover|contain|auto/))){}else{e[0]=e[0].indexOf("%")===-1?u(t,i+"X",e[0]):e[0];if(e[1]===n){if(i==="backgroundSize"){e[1]="auto";return e}else{e[1]=e[0]}}e[1]=e[1].indexOf("%")===-1?u(t,i+"Y",e[1]):e[1]}return e}function l(e,t,n,i,s,o){var u=r.Util.getCSS(t,e,s),a,f,l,c;if(u.length===1){c=u[0];u=[];u[0]=c;u[1]=c}if(u[0].toString().indexOf("%")!==-1){l=parseFloat(u[0])/100;f=n.width*l;if(e!=="backgroundSize"){f-=(o||i).width*l}}else{if(e==="backgroundSize"){if(u[0]==="auto"){f=i.width}else{if(/contain|cover/.test(u[0])){var h=r.Util.resizeBounds(i.width,i.height,n.width,n.height,u[0]);f=h.width;a=h.height}else{f=parseInt(u[0],10)}}}else{f=parseInt(u[0],10)}}if(u[1]==="auto"){a=f/i.width*i.height}else if(u[1].toString().indexOf("%")!==-1){l=parseFloat(u[1])/100;a=n.height*l;if(e!=="backgroundSize"){a-=(o||i).height*l}}else{a=parseInt(u[1],10)}return[f,a]}function c(e,t){var n=[];return{storage:n,width:e,height:t,clip:function(){n.push({type:"function",name:"clip",arguments:arguments})},translate:function(){n.push({type:"function",name:"translate",arguments:arguments})},fill:function(){n.push({type:"function",name:"fill",arguments:arguments})},save:function(){n.push({type:"function",name:"save",arguments:arguments})},restore:function(){n.push({type:"function",name:"restore",arguments:arguments})},fillRect:function(){n.push({type:"function",name:"fillRect",arguments:arguments})},createPattern:function(){n.push({type:"function",name:"createPattern",arguments:arguments})},drawShape:function(){var e=[];n.push({type:"function",name:"drawShape",arguments:e});return{moveTo:function(){e.push({name:"moveTo",arguments:arguments})},lineTo:function(){e.push({name:"lineTo",arguments:arguments})},arcTo:function(){e.push({name:"arcTo",arguments:arguments})},bezierCurveTo:function(){e.push({name:"bezierCurveTo",arguments:arguments})},quadraticCurveTo:function(){e.push({name:"quadraticCurveTo",arguments:arguments})}}},drawImage:function(){n.push({type:"function",name:"drawImage",arguments:arguments})},fillText:function(){n.push({type:"function",name:"fillText",arguments:arguments})},setVariable:function(e,t){n.push({type:"variable",name:e,arguments:t});return t}}}function h(e){return{zindex:e,children:[]}}var r={},i,s,o;r.Util={};r.Util.log=function(t){if(r.logging&&e.console&&e.console.log){e.console.log(t)}};r.Util.trimText=function(e){return function(t){return e?e.apply(t):((t||"")+"").replace(/^\s+|\s+$/g,"")}}(String.prototype.trim);r.Util.asFloat=function(e){return parseFloat(e)};(function(){var e=/((rgba|rgb)\([^\)]+\)(\s-?\d+px){0,})/g;var t=/(-?\d+px)|(#.+)|(rgb\(.+\))|(rgba\(.+\))/g;r.Util.parseTextShadows=function(n){if(!n||n==="none"){return[]}var r=n.match(e),i=[];for(var s=0;r&&s<r.length;s++){var o=r[s].match(t);i.push({color:o[0],offsetX:o[1]?o[1].replace("px",""):0,offsetY:o[2]?o[2].replace("px",""):0,blur:o[3]?o[3].replace("px",""):0})}return i}})();r.Util.parseBackgroundImage=function(e){var t=" \r\n	",n,r,i,s,o,u=[],a,f=0,l=0,c,h;var p=function(){if(n){if(r.substr(0,1)==='"'){r=r.substr(1,r.length-2)}if(r){h.push(r)}if(n.substr(0,1)==="-"&&(s=n.indexOf("-",1)+1)>0){i=n.substr(0,s);n=n.substr(s)}u.push({prefix:i,method:n.toLowerCase(),value:o,args:h})}h=[];n=i=r=o=""};p();for(var d=0,v=e.length;d<v;d++){a=e[d];if(f===0&&t.indexOf(a)>-1){continue}switch(a){case'"':if(!c){c=a}else if(c===a){c=null}break;case"(":if(c){break}else if(f===0){f=1;o+=a;continue}else{l++}break;case")":if(c){break}else 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o};r.Util.resizeBounds=function(e,t,n,r,i){var s=n/r,o=e/t,u,a;if(!i||i==="auto"){u=n;a=r}else if(s<o^i==="contain"){a=r;u=r*o}else{u=n;a=n/o}return{width:u,height:a}};r.Util.BackgroundPosition=function(e,t,n,r,i){var s=l("backgroundPosition",e,t,n,r,i);return{left:s[0],top:s[1]}};r.Util.BackgroundSize=function(e,t,n,r){var i=l("backgroundSize",e,t,n,r);return{width:i[0],height:i[1]}};r.Util.Extend=function(e,t){for(var n in e){if(e.hasOwnProperty(n)){t[n]=e[n]}}return t};r.Util.Children=function(e){var t;try{t=e.nodeName&&e.nodeName.toUpperCase()==="IFRAME"?e.contentDocument||e.contentWindow.document:function(e){var t=[];if(e!==null){(function(e,t){var r=e.length,i=0;if(typeof t.length==="number"){for(var s=t.length;i<s;i++){e[r++]=t[i]}}else{while(t[i]!==n){e[r++]=t[i++]}}e.length=r;return e})(t,e)}return t}(e.childNodes)}catch(i){r.Util.log("html2canvas.Util.Children failed with exception: "+i.message);t=[]}return t};r.Util.isTransparent=function(e){return e==="transparent"||e==="rgba(0, 0, 0, 0)"};r.Util.Font=function(){var e={};return function(t,r,i){if(e[t+"-"+r]!==n){return e[t+"-"+r]}var s=i.createElement("div"),o=i.createElement("img"),u=i.createElement("span"),a="Hidden Text",f,l,c;s.style.visibility="hidden";s.style.fontFamily=t;s.style.fontSize=r;s.style.margin=0;s.style.padding=0;i.body.appendChild(s);o.src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=";o.width=1;o.height=1;o.style.margin=0;o.style.padding=0;o.style.verticalAlign="baseline";u.style.fontFamily=t;u.style.fontSize=r;u.style.margin=0;u.style.padding=0;u.appendChild(i.createTextNode(a));s.appendChild(u);s.appendChild(o);f=o.offsetTop-u.offsetTop+1;s.removeChild(u);s.appendChild(i.createTextNode(a));s.style.lineHeight="normal";o.style.verticalAlign="super";l=o.offsetTop-s.offsetTop+1;c={baseline:f,lineWidth:1,middle:l};e[t+"-"+r]=c;i.body.removeChild(s);return c}}();(function(){function s(t){return function(n){try{t.addColorStop(n.stop,n.color)}catch(r){e.log(["failed to add color stop: ",r,"; tried to add: ",n])}}}var e=r.Util,n={};r.Generate=n;var i=[/^(-webkit-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-linear-gradient)\(([a-z\s]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-gradient)\((linear|radial),\s((?:\d{1,3}%?)\s(?:\d{1,3}%?),\s(?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)\-]+)\)$/,/^(-moz-linear-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?))([\w\d\.\s,%\(\)]+)\)$/,/^(-webkit-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/,/^(-moz-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s?([a-z\-]*)([\w\d\.\s,%\(\)]+)\)$/,/^(-o-radial-gradient)\(((?:\d{1,3}%?)\s(?:\d{1,3}%?)),\s(\w+)\s([a-z\-]+)([\w\d\.\s,%\(\)]+)\)$/];n.parseGradient=function(e,t){var n,r,s=i.length,o,u,a,f,l,c,h,p,d,v;for(r=0;r<s;r+=1){o=e.match(i[r]);if(o){break}}if(o){switch(o[1]){case"-webkit-linear-gradient":case"-o-linear-gradient":n={type:"linear",x0:null,y0:null,x1:null,y1:null,colorStops:[]};a=o[2].match(/\w+/g);if(a){f=a.length;for(r=0;r<f;r+=1){switch(a[r]){case"top":n.y0=0;n.y1=t.height;break;case"right":n.x0=t.width;n.x1=0;break;case"bottom":n.y0=t.height;n.y1=0;break;case"left":n.x0=0;n.x1=t.width;break}}}if(n.x0===null&&n.x1===null){n.x0=n.x1=t.width/2}if(n.y0===null&&n.y1===null){n.y0=n.y1=t.height/2}a=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);if(a){f=a.length;l=1/Math.max(f-1,1);for(r=0;r<f;r+=1){c=a[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if(c[2]){u=parseFloat(c[2]);if(c[3]==="%"){u/=100}else{u/=t.width}}else{u=r*l}n.colorStops.push({color:c[1],stop:u})}}break;case"-webkit-gradient":n={type:o[2]==="radial"?"circle":o[2],x0:0,y0:0,x1:0,y1:0,colorStops:[]};a=o[3].match(/(\d{1,3})%?\s(\d{1,3})%?,\s(\d{1,3})%?\s(\d{1,3})%?/);if(a){n.x0=a[1]*t.width/100;n.y0=a[2]*t.height/100;n.x1=a[3]*t.width/100;n.y1=a[4]*t.height/100}a=o[4].match(/((?:from|to|color-stop)\((?:[0-9\.]+,\s)?(?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)\))+/g);if(a){f=a.length;for(r=0;r<f;r+=1){c=a[r].match(/(from|to|color-stop)\(([0-9\.]+)?(?:,\s)?((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\)/);u=parseFloat(c[2]);if(c[1]==="from"){u=0}if(c[1]==="to"){u=1}n.colorStops.push({color:c[3],stop:u})}}break;case"-moz-linear-gradient":n={type:"linear",x0:0,y0:0,x1:0,y1:0,colorStops:[]};a=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);if(a){n.x0=a[1]*t.width/100;n.y0=a[2]*t.height/100;n.x1=t.width-n.x0;n.y1=t.height-n.y0}a=o[3].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}%)?)+/g);if(a){f=a.length;l=1/Math.max(f-1,1);for(r=0;r<f;r+=1){c=a[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%)?/);if(c[2]){u=parseFloat(c[2]);if(c[3]){u/=100}}else{u=r*l}n.colorStops.push({color:c[1],stop:u})}}break;case"-webkit-radial-gradient":case"-moz-radial-gradient":case"-o-radial-gradient":n={type:"circle",x0:0,y0:0,x1:t.width,y1:t.height,cx:0,cy:0,rx:0,ry:0,colorStops:[]};a=o[2].match(/(\d{1,3})%?\s(\d{1,3})%?/);if(a){n.cx=a[1]*t.width/100;n.cy=a[2]*t.height/100}a=o[3].match(/\w+/);c=o[4].match(/[a-z\-]*/);if(a&&c){switch(c[0]){case"farthest-corner":case"cover":case"":h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2));p=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2));d=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2));v=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2));n.rx=n.ry=Math.max(h,p,d,v);break;case"closest-corner":h=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.cy,2));p=Math.sqrt(Math.pow(n.cx,2)+Math.pow(n.y1-n.cy,2));d=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.y1-n.cy,2));v=Math.sqrt(Math.pow(n.x1-n.cx,2)+Math.pow(n.cy,2));n.rx=n.ry=Math.min(h,p,d,v);break;case"farthest-side":if(a[0]==="circle"){n.rx=n.ry=Math.max(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy)}else{n.type=a[0];n.rx=Math.max(n.cx,n.x1-n.cx);n.ry=Math.max(n.cy,n.y1-n.cy)}break;case"closest-side":case"contain":if(a[0]==="circle"){n.rx=n.ry=Math.min(n.cx,n.cy,n.x1-n.cx,n.y1-n.cy)}else{n.type=a[0];n.rx=Math.min(n.cx,n.x1-n.cx);n.ry=Math.min(n.cy,n.y1-n.cy)}break}}a=o[5].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\)(?:\s\d{1,3}(?:%|px))?)+/g);if(a){f=a.length;l=1/Math.max(f-1,1);for(r=0;r<f;r+=1){c=a[r].match(/((?:rgb|rgba)\(\d{1,3},\s\d{1,3},\s\d{1,3}(?:,\s[0-9\.]+)?\))\s*(\d{1,3})?(%|px)?/);if(c[2]){u=parseFloat(c[2]);if(c[3]==="%"){u/=100}else{u/=t.width}}else{u=r*l}n.colorStops.push({color:c[1],stop:u})}}break}}return 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