Material

static/js/lib/blur.min.js

@@ -0,0 +1,17 @@
+/* 
+ * Blur.js
+ * Copyright Jacob Kelley
+ * MIT License
+ */
+// Stackblur, courtesy of Mario Klingemann: http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
+(function(l){l.fn.blurjs=function(e){function O(){this.a=this.b=this.g=this.r=0;this.next=null}var y=document.createElement("canvas"),P=!1,H=l(this).selector.replace(/[^a-zA-Z0-9]/g,"");if(y.getContext){var e=l.extend({source:"body",radius:5,overlay:"",offset:{x:0,y:0},optClass:"",cache:!1,cacheKeyPrefix:"blurjs-",draggable:!1,debug:!1},e),R=[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],S=[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];return this.each(function(){var A=l(this),I=l(e.source),B=I.css("backgroundImage").replace(/"/g,"").replace(/url\(|\)$/ig,"");ctx=y.getContext("2d");tempImg=new Image;tempImg.onload=function(){if(P)j=tempImg.src;else{y.style.display="none";y.width=tempImg.width;y.height=tempImg.height;ctx.drawImage(tempImg,0,0);var j=y.width,q=y.height,k=e.radius;if(!(isNaN(k)||1>k)){var k=
+k|0,M=y.getContext("2d"),l;try{try{l=M.getImageData(0,0,j,q)}catch(L){try{netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead"),l=M.getImageData(0,0,j,q)}catch(T){throw alert("Cannot access local image"),Error("unable to access local image data: "+T);}}}catch(U){throw alert("Cannot access image"),Error("unable to access image data: "+U);}var c=l.data,u,z,a,d,f,J,g,h,i,v,w,x,m,n,o,r,s,t,C;u=k+k+1;var K=j-1,N=q-1,p=k+1,D=p*(p+1)/2,E=new O,b=E;for(a=1;a<u;a++)if(b=b.next=new O,a==
+p)var Q=b;b.next=E;b=a=null;J=f=0;var F=R[k],G=S[k];for(z=0;z<q;z++){m=n=o=g=h=i=0;v=p*(r=c[f]);w=p*(s=c[f+1]);x=p*(t=c[f+2]);g+=D*r;h+=D*s;i+=D*t;b=E;for(a=0;a<p;a++)b.r=r,b.g=s,b.b=t,b=b.next;for(a=1;a<p;a++)d=f+((K<a?K:a)<<2),g+=(b.r=r=c[d])*(C=p-a),h+=(b.g=s=c[d+1])*C,i+=(b.b=t=c[d+2])*C,m+=r,n+=s,o+=t,b=b.next;a=E;b=Q;for(u=0;u<j;u++)c[f]=g*F>>G,c[f+1]=h*F>>G,c[f+2]=i*F>>G,g-=v,h-=w,i-=x,v-=a.r,w-=a.g,x-=a.b,d=J+((d=u+k+1)<K?d:K)<<2,m+=a.r=c[d],n+=a.g=c[d+1],o+=a.b=c[d+2],g+=m,h+=n,i+=o,a=a.next,
+v+=r=b.r,w+=s=b.g,x+=t=b.b,m-=r,n-=s,o-=t,b=b.next,f+=4;J+=j}for(u=0;u<j;u++){n=o=m=h=i=g=0;f=u<<2;v=p*(r=c[f]);w=p*(s=c[f+1]);x=p*(t=c[f+2]);g+=D*r;h+=D*s;i+=D*t;b=E;for(a=0;a<p;a++)b.r=r,b.g=s,b.b=t,b=b.next;d=j;for(a=1;a<=k;a++)f=d+u<<2,g+=(b.r=r=c[f])*(C=p-a),h+=(b.g=s=c[f+1])*C,i+=(b.b=t=c[f+2])*C,m+=r,n+=s,o+=t,b=b.next,a<N&&(d+=j);f=u;a=E;b=Q;for(z=0;z<q;z++)d=f<<2,c[d]=g*F>>G,c[d+1]=h*F>>G,c[d+2]=i*F>>G,g-=v,h-=w,i-=x,v-=a.r,w-=a.g,x-=a.b,d=u+((d=z+p)<N?d:N)*j<<2,g+=m+=a.r=c[d],h+=n+=a.g=
+c[d+1],i+=o+=a.b=c[d+2],a=a.next,v+=r=b.r,w+=s=b.g,x+=t=b.b,m-=r,n-=s,o-=t,b=b.next,f+=j}M.putImageData(l,0,0)}if(!1!=e.overlay)ctx.beginPath(),ctx.rect(0,0,tempImg.width,tempImg.width),ctx.fillStyle=e.overlay,ctx.fill();var j=y.toDataURL();if(e.cache)try{e.debug&&console.log("Cache Set"),localStorage.setItem(e.cacheKeyPrefix+H+"-"+B+"-data-image",j)}catch(V){console.log(V)}}q=I.css("backgroundAttachment");k="fixed"==q?"":"-"+(A.offset().left-I.offset().left-e.offset.x)+"px -"+(A.offset().top-I.offset().top-
+e.offset.y)+"px";A.css({"background-image":'url("'+j+'")',"background-repeat":I.css("backgroundRepeat"),"background-position":k,"background-attachment":q});!1!=e.optClass&&A.addClass(e.optClass);e.draggable&&(A.css({"background-attachment":"fixed","background-position":"0 0"}),A.draggable())};Storage.prototype.cacheChecksum=function(j){var q="",k;for(k in j)var l=j[k],q="[object Object]"==l.toString()?q+(l.x.toString()+l.y.toString()+",").replace(/[^a-zA-Z0-9]/g,""):q+(l+",").replace(/[^a-zA-Z0-9]/g,
+"");this.getItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache")!=q&&(this.removeItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache"),this.setItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache",q),e.debug&&console.log("Settings Changed, Cache Emptied"))};var L=null;e.cache&&(localStorage.cacheChecksum(e),L=localStorage.getItem(e.cacheKeyPrefix+H+"-"+B+"-data-image"));null!=L?(e.debug&&console.log("Cache Used"),P=!0,tempImg.src=L):(e.debug&&console.log("Source Used"),tempImg.src=B)})}}})(jQuery);

static/js/lib/color-thief.min.js

@@ -0,0 +1,663 @@
+/*
+ * Color Thief v2.0
+ * by Lokesh Dhakar - http://www.lokeshdhakar.com
+ *
+ * License
+ * -------
+ * Creative Commons Attribution 2.5 License:
+ * http://creativecommons.org/licenses/by/2.5/
+ *
+ * Thanks
+ * ------
+ * Nick Rabinowitz - For creating quantize.js.
+ * John Schulz - For clean up and optimization. @JFSIII
+ * Nathan Spady - For adding drag and drop support to the demo page.
+ *
+ */
+
+
+/*
+  CanvasImage Class
+  Class that wraps the html image element and canvas.
+  It also simplifies some of the canvas context manipulation
+  with a set of helper functions.
+*/
+
+var iAmOnNode = false;
+if (typeof process !== 'undefined' && process.execPath && process.execPath.indexOf('node') !== -1) {
+    iAmOnNode = true;
+}
+if (iAmOnNode) {
+  var Canvas = require('canvas');
+  var Image = Canvas.Image;
+  var fs = require('fs');
+}
+
+var CanvasImage = function (image) {
+    // in node we use strings as path to an image
+    // whereas in the browser we use an image element
+    if (iAmOnNode) {
+      this.canvas = new Canvas()
+      var img = new Image;
+
+      if(image instanceof Buffer) {
+        img.src = image
+      }else{
+        img.src = fs.readFileSync(image);
+      }
+
+    } else {
+      this.canvas = document.createElement('canvas');
+      document.body.appendChild(this.canvas);
+      var img = image;
+    }
+    
+    this.context = this.canvas.getContext('2d');
+
+    this.width  = this.canvas.width  = img.width;
+    this.height = this.canvas.height = img.height;
+
+    this.context.drawImage(img, 0, 0, this.width, this.height);
+};
+
+CanvasImage.prototype.clear = function () {
+    this.context.clearRect(0, 0, this.width, this.height);
+};
+
+CanvasImage.prototype.update = function (imageData) {
+    this.context.putImageData(imageData, 0, 0);
+};
+
+CanvasImage.prototype.getPixelCount = function () {
+    return this.width * this.height;
+};
+
+CanvasImage.prototype.getImageData = function () {
+    return this.context.getImageData(0, 0, this.width, this.height);
+};
+
+CanvasImage.prototype.removeCanvas = function () {
+  if (this.canvas.parentNode) {
+    this.canvas.parentNode.removeChild(this.canvas);
+  }
+};
+
+
+var ColorThief = function () {};
+
+/*
+ * getColor(sourceImage[, quality])
+ * returns {r: num, g: num, b: num}
+ *
+ * Use the median cut algorithm provided by quantize.js to cluster similar
+ * colors and return the base color from the largest cluster.
+ *
+ * Quality is an optional argument. It needs to be an integer. 0 is the highest quality settings.
+ * 10 is the default. There is a trade-off between quality and speed. The bigger the number, the
+ * faster a color will be returned but the greater the likelihood that it will not be the visually
+ * most dominant color.
+ *
+ * */
+ColorThief.prototype.getColor = function(sourceImage, quality, allowWhite) {
+    // control if second parameter is allowWhite
+    if (quality === true || quality === false) {
+      allowWhite = quality;
+      quality = undefined;
+    }
+  
+    var palette       = this.getPalette(sourceImage, 5, quality, allowWhite);
+    var dominantColor = palette[0];
+    return dominantColor;
+};
+
+
+/*
+ * getPalette(sourceImage[, colorCount, quality])
+ * returns array[ {r: num, g: num, b: num}, {r: num, g: num, b: num}, ...]
+ *
+ * Use the median cut algorithm provided by quantize.js to cluster similar colors.
+ *
+ * colorCount determines the size of the palette; the number of colors returned. If not set, it
+ * defaults to 10.
+ *
+ * BUGGY: Function does not always return the requested amount of colors. It can be +/- 2.
+ *
+ * quality is an optional argument. It needs to be an integer. 0 is the highest quality settings.
+ * 10 is the default. There is a trade-off between quality and speed. The bigger the number, the
+ * faster the palette generation but the greater the likelihood that colors will be missed.
+ *
+ *
+ */
+ColorThief.prototype.getPalette = function(sourceImage, colorCount, quality, allowWhite) {
+
+    if (typeof colorCount === 'undefined') {
+        colorCount = 10;
+    };
+    if (typeof quality === 'undefined') {
+        quality = 10;
+    };
+
+    // Create custom CanvasImage object
+    var image      = new CanvasImage(sourceImage);
+    var imageData  = image.getImageData();
+    var pixels     = imageData.data;
+    var pixelCount = image.getPixelCount();
+    var palette    = this.getPaletteFromPixels(pixels, pixelCount, colorCount, quality, allowWhite);
+
+    // Clean up
+    image.removeCanvas();
+
+    return palette;
+};
+
+/*
+ * getPaletteFromPixels(pixels, pixelCount, colorCount, quality)
+ * returns array[ {r: num, g: num, b: num}, {r: num, g: num, b: num}, ...]
+ *
+ * Low-level function that takes pixels and computes color palette.
+ * Used by getPalette() and getColor()
+ *
+ */
+ColorThief.prototype.getPaletteFromPixels = function(pixels, pixelCount, colorCount, quality, allowWhite) {
+
+    // Store the RGB values in an array format suitable for quantize function
+    var pixelArray = [];
+    for (var i = 0, offset, r, g, b, a; i < pixelCount; i = i + quality) {
+        offset = i * 4;
+        r = pixels[offset + 0];
+        g = pixels[offset + 1];
+        b = pixels[offset + 2];
+        a = pixels[offset + 3];
+        // If pixel is mostly opaque and not white
+        if (a >= 125) {
+            if ((!(r > 250 && g > 250 && b > 250) && allowWhite !== true) || (!(r > 255 && g > 255 && b > 255) && allowWhite === true )) {
+                pixelArray.push([r, g, b]);
+            }
+        }
+    }
+
+    // Send array to quantize function which clusters values
+    // using median cut algorithm
+    var cmap    = MMCQ.quantize(pixelArray, colorCount);
+    var palette = cmap.palette();
+
+    return palette;
+}
+
+/*!
+ * quantize.js Copyright 2008 Nick Rabinowitz.
+ * Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
+ */
+
+// fill out a couple protovis dependencies
+/*!
+ * Block below copied from Protovis: http://mbostock.github.com/protovis/
+ * Copyright 2010 Stanford Visualization Group
+ * Licensed under the BSD License: http://www.opensource.org/licenses/bsd-license.php
+ */
+if (!pv) {
+    var pv = {
+        map: function(array, f) {
+          var o = {};
+          return f
+              ? array.map(function(d, i) { o.index = i; return f.call(o, d); })
+              : array.slice();
+        },
+        naturalOrder: function(a, b) {
+            return (a < b) ? -1 : ((a > b) ? 1 : 0);
+        },
+        sum: function(array, f) {
+          var o = {};
+          return array.reduce(f
+              ? function(p, d, i) { o.index = i; return p + f.call(o, d); }
+              : function(p, d) { return p + d; }, 0);
+        },
+        max: function(array, f) {
+          return Math.max.apply(null, f ? pv.map(array, f) : array);
+        }
+    };
+}
+
+
+
+/**
+ * Basic Javascript port of the MMCQ (modified median cut quantization)
+ * algorithm from the Leptonica library (http://www.leptonica.com/).
+ * Returns a color map you can use to map original pixels to the reduced
+ * palette. Still a work in progress.
+ *
+ * @author Nick Rabinowitz
+ * @example
+
+// array of pixels as [R,G,B] arrays
+var myPixels = [[190,197,190], [202,204,200], [207,214,210], [211,214,211], [205,207,207]
+                // etc
+                ];
+var maxColors = 4;
+
+var cmap = MMCQ.quantize(myPixels, maxColors);
+var newPalette = cmap.palette();
+var newPixels = myPixels.map(function(p) {
+    return cmap.map(p);
+});
+
+ */
+var MMCQ = (function() {
+    // private constants
+    var sigbits = 5,
+        rshift = 8 - sigbits,
+        maxIterations = 1000,
+        fractByPopulations = 0.75;
+
+    // get reduced-space color index for a pixel
+    function getColorIndex(r, g, b) {
+        return (r << (2 * sigbits)) + (g << sigbits) + b;
+    }
+
+    // Simple priority queue
+    function PQueue(comparator) {
+        var contents = [],
+            sorted = false;
+
+        function sort() {
+            contents.sort(comparator);
+            sorted = true;
+        }
+
+        return {
+            push: function(o) {
+                contents.push(o);
+                sorted = false;
+            },
+            peek: function(index) {
+                if (!sorted) sort();
+                if (index===undefined) index = contents.length - 1;
+                return contents[index];
+            },
+            pop: function() {
+                if (!sorted) sort();
+                return contents.pop();
+            },
+            size: function() {
+                return contents.length;
+            },
+            map: function(f) {
+                return contents.map(f);
+            },
+            debug: function() {
+                if (!sorted) sort();
+                return contents;
+            }
+        };
+    }
+
+    // 3d color space box
+    function VBox(r1, r2, g1, g2, b1, b2, histo) {
+        var vbox = this;
+        vbox.r1 = r1;
+        vbox.r2 = r2;
+        vbox.g1 = g1;
+        vbox.g2 = g2;
+        vbox.b1 = b1;
+        vbox.b2 = b2;
+        vbox.histo = histo;
+    }
+    VBox.prototype = {
+        volume: function(force) {
+            var vbox = this;
+            if (!vbox._volume || force) {
+                vbox._volume = ((vbox.r2 - vbox.r1 + 1) * (vbox.g2 - vbox.g1 + 1) * (vbox.b2 - vbox.b1 + 1));
+            }
+            return vbox._volume;
+        },
+        count: function(force) {
+            var vbox = this,
+                histo = vbox.histo;
+            if (!vbox._count_set || force) {
+                var npix = 0,
+                    i, j, k;
+                for (i = vbox.r1; i <= vbox.r2; i++) {
+                    for (j = vbox.g1; j <= vbox.g2; j++) {
+                        for (k = vbox.b1; k <= vbox.b2; k++) {
+                             var index = getColorIndex(i,j,k);
+                             npix += (histo[index] || 0);
+                        }
+                    }
+                }
+                vbox._count = npix;
+                vbox._count_set = true;
+            }
+            return vbox._count;
+        },
+        copy: function() {
+            var vbox = this;
+            return new VBox(vbox.r1, vbox.r2, vbox.g1, vbox.g2, vbox.b1, vbox.b2, vbox.histo);
+        },
+        avg: function(force) {
+            var vbox = this,
+                histo = vbox.histo;
+            if (!vbox._avg || force) {
+                var ntot = 0,
+                    mult = 1 << (8 - sigbits),
+                    rsum = 0,
+                    gsum = 0,
+                    bsum = 0,
+                    hval,
+                    i, j, k, histoindex;
+                for (i = vbox.r1; i <= vbox.r2; i++) {
+                    for (j = vbox.g1; j <= vbox.g2; j++) {
+                        for (k = vbox.b1; k <= vbox.b2; k++) {
+                             histoindex = getColorIndex(i,j,k);
+                             hval = histo[histoindex] || 0;
+                             ntot += hval;
+                             rsum += (hval * (i + 0.5) * mult);
+                             gsum += (hval * (j + 0.5) * mult);
+                             bsum += (hval * (k + 0.5) * mult);
+                        }
+                    }
+                }
+                if (ntot) {
+                    vbox._avg = [~~(rsum/ntot), ~~(gsum/ntot), ~~(bsum/ntot)];
+                } else {
+//                    console.log('empty box');
+                    vbox._avg = [
+                        ~~(mult * (vbox.r1 + vbox.r2 + 1) / 2),
+                        ~~(mult * (vbox.g1 + vbox.g2 + 1) / 2),
+                        ~~(mult * (vbox.b1 + vbox.b2 + 1) / 2)
+                    ];
+                }
+            }
+            return vbox._avg;
+        },
+        contains: function(pixel) {
+            var vbox = this,
+                rval = pixel[0] >> rshift;
+                gval = pixel[1] >> rshift;
+                bval = pixel[2] >> rshift;
+            return (rval >= vbox.r1 && rval <= vbox.r2 &&
+                    gval >= vbox.g1 && gval <= vbox.g2 &&
+                    bval >= vbox.b1 && bval <= vbox.b2);
+        }
+    };
+
+    // Color map
+    function CMap() {
+        this.vboxes = new PQueue(function(a,b) {
+            return pv.naturalOrder(
+                a.vbox.count()*a.vbox.volume(),
+                b.vbox.count()*b.vbox.volume()
+            )
+        });;
+    }
+    CMap.prototype = {
+        push: function(vbox) {
+            this.vboxes.push({
+                vbox: vbox,
+                color: vbox.avg()
+            });
+        },
+        palette: function() {
+            return this.vboxes.map(function(vb) { return vb.color });
+        },
+        size: function() {
+            return this.vboxes.size();
+        },
+        map: function(color) {
+            var vboxes = this.vboxes;
+            for (var i=0; i<vboxes.size(); i++) {
+                if (vboxes.peek(i).vbox.contains(color)) {
+                    return vboxes.peek(i).color;
+                }
+            }
+            return this.nearest(color);
+        },
+        nearest: function(color) {
+            var vboxes = this.vboxes,
+                d1, d2, pColor;
+            for (var i=0; i<vboxes.size(); i++) {
+                d2 = Math.sqrt(
+                    Math.pow(color[0] - vboxes.peek(i).color[0], 2) +
+                    Math.pow(color[1] - vboxes.peek(i).color[1], 2) +
+                    Math.pow(color[2] - vboxes.peek(i).color[2], 2)
+                );
+                if (d2 < d1 || d1 === undefined) {
+                    d1 = d2;
+                    pColor = vboxes.peek(i).color;
+                }
+            }
+            return pColor;
+        },
+        forcebw: function() {
+            // XXX: won't  work yet
+            var vboxes = this.vboxes;
+            vboxes.sort(function(a,b) { return pv.naturalOrder(pv.sum(a.color), pv.sum(b.color) )});
+
+            // force darkest color to black if everything < 5
+            var lowest = vboxes[0].color;
+            if (lowest[0] < 5 && lowest[1] < 5 && lowest[2] < 5)
+                vboxes[0].color = [0,0,0];
+
+            // force lightest color to white if everything > 251
+            var idx = vboxes.length-1,
+                highest = vboxes[idx].color;
+            if (highest[0] > 251 && highest[1] > 251 && highest[2] > 251)
+                vboxes[idx].color = [255,255,255];
+        }
+    };
+
+    // histo (1-d array, giving the number of pixels in
+    // each quantized region of color space), or null on error
+    function getHisto(pixels) {
+        var histosize = 1 << (3 * sigbits),
+            histo = new Array(histosize),
+            index, rval, gval, bval;
+        pixels.forEach(function(pixel) {
+            rval = pixel[0] >> rshift;
+            gval = pixel[1] >> rshift;
+            bval = pixel[2] >> rshift;
+            index = getColorIndex(rval, gval, bval);
+            histo[index] = (histo[index] || 0) + 1;
+        });
+        return histo;
+    }
+
+    function vboxFromPixels(pixels, histo) {
+        var rmin=1000000, rmax=0,
+            gmin=1000000, gmax=0,
+            bmin=1000000, bmax=0,
+            rval, gval, bval;
+        // find min/max
+        pixels.forEach(function(pixel) {
+            rval = pixel[0] >> rshift;
+            gval = pixel[1] >> rshift;
+            bval = pixel[2] >> rshift;
+            if (rval < rmin) rmin = rval;
+            else if (rval > rmax) rmax = rval;
+            if (gval < gmin) gmin = gval;
+            else if (gval > gmax) gmax = gval;
+            if (bval < bmin) bmin = bval;
+            else if (bval > bmax)  bmax = bval;
+        });
+        return new VBox(rmin, rmax, gmin, gmax, bmin, bmax, histo);
+    }
+
+    function medianCutApply(histo, vbox) {
+        if (!vbox.count()) return;
+
+        var rw = vbox.r2 - vbox.r1 + 1,
+            gw = vbox.g2 - vbox.g1 + 1,
+            bw = vbox.b2 - vbox.b1 + 1,
+            maxw = pv.max([rw, gw, bw]);
+        // only one pixel, no split
+        if (vbox.count() == 1) {
+            return [vbox.copy()]
+        }
+        /* Find the partial sum arrays along the selected axis. */
+        var total = 0,
+            partialsum = [],
+            lookaheadsum = [],
+            i, j, k, sum, index;
+        if (maxw == rw) {
+            for (i = vbox.r1; i <= vbox.r2; i++) {
+                sum = 0;
+                for (j = vbox.g1; j <= vbox.g2; j++) {
+                    for (k = vbox.b1; k <= vbox.b2; k++) {
+                        index = getColorIndex(i,j,k);
+                        sum += (histo[index] || 0);
+                    }
+                }
+                total += sum;
+                partialsum[i] = total;
+            }
+        }
+        else if (maxw == gw) {
+            for (i = vbox.g1; i <= vbox.g2; i++) {
+                sum = 0;
+                for (j = vbox.r1; j <= vbox.r2; j++) {
+                    for (k = vbox.b1; k <= vbox.b2; k++) {
+                        index = getColorIndex(j,i,k);
+                        sum += (histo[index] || 0);
+                    }
+                }
+                total += sum;
+                partialsum[i] = total;
+            }
+        }
+        else {  /* maxw == bw */
+            for (i = vbox.b1; i <= vbox.b2; i++) {
+                sum = 0;
+                for (j = vbox.r1; j <= vbox.r2; j++) {
+                    for (k = vbox.g1; k <= vbox.g2; k++) {
+                        index = getColorIndex(j,k,i);
+                        sum += (histo[index] || 0);
+                    }
+                }
+                total += sum;
+                partialsum[i] = total;
+            }
+        }
+        partialsum.forEach(function(d,i) {
+            lookaheadsum[i] = total-d
+        });
+        function doCut(color) {
+            var dim1 = color + '1',
+                dim2 = color + '2',
+                left, right, vbox1, vbox2, d2, count2=0;
+            for (i = vbox[dim1]; i <= vbox[dim2]; i++) {
+                if (partialsum[i] > total / 2) {
+                    vbox1 = vbox.copy();
+                    vbox2 = vbox.copy();
+                    left = i - vbox[dim1];
+                    right = vbox[dim2] - i;
+                    if (left <= right)
+                        d2 = Math.min(vbox[dim2] - 1, ~~(i + right / 2));
+                    else d2 = Math.max(vbox[dim1], ~~(i - 1 - left / 2));
+                    // avoid 0-count boxes
+                    while (!partialsum[d2]) d2++;
+                    count2 = lookaheadsum[d2];
+                    while (!count2 && partialsum[d2-1]) count2 = lookaheadsum[--d2];
+                    // set dimensions
+                    vbox1[dim2] = d2;
+                    vbox2[dim1] = vbox1[dim2] + 1;
+//                    console.log('vbox counts:', vbox.count(), vbox1.count(), vbox2.count());
+                    return [vbox1, vbox2];
+                }
+            }
+
+        }
+        // determine the cut planes
+        return maxw == rw ? doCut('r') :
+            maxw == gw ? doCut('g') :
+            doCut('b');
+    }
+
+    function quantize(pixels, maxcolors) {
+        // short-circuit
+        if (!pixels.length || maxcolors < 2 || maxcolors > 256) {
+//            console.log('wrong number of maxcolors');
+            return false;
+        }
+
+        // XXX: check color content and convert to grayscale if insufficient
+
+        var histo = getHisto(pixels),
+            histosize = 1 << (3 * sigbits);
+
+        // check that we aren't below maxcolors already
+        var nColors = 0;
+        histo.forEach(function() { nColors++ });
+        if (nColors <= maxcolors) {
+            // XXX: generate the new colors from the histo and return
+        }
+
+        // get the beginning vbox from the colors
+        var vbox = vboxFromPixels(pixels, histo),
+            pq = new PQueue(function(a,b) { return pv.naturalOrder(a.count(), b.count()) });
+        pq.push(vbox);
+
+        // inner function to do the iteration
+        function iter(lh, target) {
+            var ncolors = 1,
+                niters = 0,
+                vbox;
+            while (niters < maxIterations) {
+                vbox = lh.pop();
+                if (!vbox.count())  { /* just put it back */
+                    lh.push(vbox);
+                    niters++;
+                    continue;
+                }
+                // do the cut
+                var vboxes = medianCutApply(histo, vbox),
+                    vbox1 = vboxes[0],
+                    vbox2 = vboxes[1];
+
+                if (!vbox1) {
+//                    console.log("vbox1 not defined; shouldn't happen!");
+                    return;
+                }
+                lh.push(vbox1);
+                if (vbox2) {  /* vbox2 can be null */
+                    lh.push(vbox2);
+                    ncolors++;
+                }
+                if (ncolors >= target) return;
+                if (niters++ > maxIterations) {
+//                    console.log("infinite loop; perhaps too few pixels!");
+                    return;
+                }
+            }
+        }
+
+        // first set of colors, sorted by population
+        iter(pq, fractByPopulations * maxcolors);
+
+        // Re-sort by the product of pixel occupancy times the size in color space.
+        var pq2 = new PQueue(function(a,b) {
+            return pv.naturalOrder(a.count()*a.volume(), b.count()*b.volume())
+        });
+        while (pq.size()) {
+            pq2.push(pq.pop());
+        }
+
+        // next set - generate the median cuts using the (npix * vol) sorting.
+        iter(pq2, maxcolors - pq2.size());
+
+        // calculate the actual colors
+        var cmap = new CMap();
+        while (pq2.size()) {
+            cmap.push(pq2.pop());
+        }
+
+        return cmap;
+    }
+
+    return {
+        quantize: quantize
+    }
+})();
+
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = ColorThief;
+}

static/js/lib/lazyload-min.js

@@ -0,0 +1,2 @@
+/*! Lazy Load 1.9.3 - MIT license - Copyright 2010-2013 Mika Tuupola */
+!function(a,b,c,d){var e=a(b);a.fn.lazyload=function(f){function g(){var b=0;i.each(function(){var c=a(this);if(!j.skip_invisible||c.is(":visible"))if(a.abovethetop(this,j)||a.leftofbegin(this,j));else if(a.belowthefold(this,j)||a.rightoffold(this,j)){if(++b>j.failure_limit)return!1}else c.trigger("appear"),b=0})}var h,i=this,j={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:b,data_attribute:"original",skip_invisible:!0,appear:null,load:null,placeholder:"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC"};return f&&(d!==f.failurelimit&&(f.failure_limit=f.failurelimit,delete f.failurelimit),d!==f.effectspeed&&(f.effect_speed=f.effectspeed,delete f.effectspeed),a.extend(j,f)),h=j.container===d||j.container===b?e:a(j.container),0===j.event.indexOf("scroll")&&h.bind(j.event,function(){return g()}),this.each(function(){var b=this,c=a(b);b.loaded=!1,(c.attr("src")===d||c.attr("src")===!1)&&c.is("img")&&c.attr("src",j.placeholder),c.one("appear",function(){if(!this.loaded){if(j.appear){var d=i.length;j.appear.call(b,d,j)}a("<img />").bind("load",function(){var d=c.attr("data-"+j.data_attribute);c.hide(),c.is("img")?c.attr("src",d):c.css("background-image","url('"+d+"')"),c[j.effect](j.effect_speed),b.loaded=!0;var e=a.grep(i,function(a){return!a.loaded});if(i=a(e),j.load){var f=i.length;j.load.call(b,f,j)}}).attr("src",c.attr("data-"+j.data_attribute))}}),0!==j.event.indexOf("scroll")&&c.bind(j.event,function(){b.loaded||c.trigger("appear")})}),e.bind("resize",function(){g()}),/(?:iphone|ipod|ipad).*os 5/gi.test(navigator.appVersion)&&e.bind("pageshow",function(b){b.originalEvent&&b.originalEvent.persisted&&i.each(function(){a(this).trigger("appear")})}),a(c).ready(function(){g()}),this},a.belowthefold=function(c,f){var g;return g=f.container===d||f.container===b?(b.innerHeight?b.innerHeight:e.height())+e.scrollTop():a(f.container).offset().top+a(f.container).height(),g<=a(c).offset().top-f.threshold},a.rightoffold=function(c,f){var g;return g=f.container===d||f.container===b?e.width()+e.scrollLeft():a(f.container).offset().left+a(f.container).width(),g<=a(c).offset().left-f.threshold},a.abovethetop=function(c,f){var g;return g=f.container===d||f.container===b?e.scrollTop():a(f.container).offset().top,g>=a(c).offset().top+f.threshold+a(c).height()},a.leftofbegin=function(c,f){var g;return g=f.container===d||f.container===b?e.scrollLeft():a(f.container).offset().left,g>=a(c).offset().left+f.threshold+a(c).width()},a.inviewport=function(b,c){return!(a.rightoffold(b,c)||a.leftofbegin(b,c)||a.belowthefold(b,c)||a.abovethetop(b,c))},a.extend(a.expr[":"],{"below-the-fold":function(b){return a.belowthefold(b,{threshold:0})},"above-the-top":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-screen":function(b){return a.rightoffold(b,{threshold:0})},"left-of-screen":function(b){return!a.rightoffold(b,{threshold:0})},"in-viewport":function(b){return a.inviewport(b,{threshold:0})},"above-the-fold":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-fold":function(b){return a.rightoffold(b,{threshold:0})},"left-of-fold":function(b){return!a.rightoffold(b,{threshold:0})}})}(jQuery,window,document);