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* Fix and refactor user icons, add Basic tests * Remove identicon_canvas, use identicon.js * Use octicon by default
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,205 @@ | ||
| /** | ||
| * Identicon.js 2.3.3 | ||
| * http://github.com/stewartlord/identicon.js | ||
| * | ||
| * PNGLib required for PNG output | ||
| * http://www.xarg.org/download/pnglib.js | ||
| * | ||
| * Copyright 2018, Stewart Lord | ||
| * Released under the BSD license | ||
| * http://www.opensource.org/licenses/bsd-license.php | ||
| */ | ||
|
|
||
| (function() { | ||
| var PNGlib; | ||
| if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') { | ||
| PNGlib = require('./pnglib'); | ||
| } else { | ||
| PNGlib = window.PNGlib; | ||
| } | ||
|
|
||
| var Identicon = function(hash, options){ | ||
| if (typeof(hash) !== 'string' || hash.length < 15) { | ||
| throw 'A hash of at least 15 characters is required.'; | ||
| } | ||
|
|
||
| this.defaults = { | ||
| background: [240, 240, 240, 255], | ||
| margin: 0.08, | ||
| size: 64, | ||
| saturation: 0.7, | ||
| brightness: 0.5, | ||
| format: 'png' | ||
| }; | ||
|
|
||
| this.options = typeof(options) === 'object' ? options : this.defaults; | ||
|
|
||
| // backward compatibility with old constructor (hash, size, margin) | ||
| if (typeof(arguments[1]) === 'number') { this.options.size = arguments[1]; } | ||
| if (arguments[2]) { this.options.margin = arguments[2]; } | ||
|
|
||
| this.hash = hash | ||
| this.background = this.options.background || this.defaults.background; | ||
| this.size = this.options.size || this.defaults.size; | ||
| this.format = this.options.format || this.defaults.format; | ||
| this.margin = this.options.margin !== undefined ? this.options.margin : this.defaults.margin; | ||
|
|
||
| // foreground defaults to last 7 chars as hue at 70% saturation, 50% brightness | ||
| var hue = parseInt(this.hash.substr(-7), 16) / 0xfffffff; | ||
| var saturation = this.options.saturation || this.defaults.saturation; | ||
| var brightness = this.options.brightness || this.defaults.brightness; | ||
| this.foreground = this.options.foreground || this.hsl2rgb(hue, saturation, brightness); | ||
| }; | ||
|
|
||
| Identicon.prototype = { | ||
| background: null, | ||
| foreground: null, | ||
| hash: null, | ||
| margin: null, | ||
| size: null, | ||
| format: null, | ||
|
|
||
| image: function(){ | ||
| return this.isSvg() | ||
| ? new Svg(this.size, this.foreground, this.background) | ||
| : new PNGlib(this.size, this.size, 256); | ||
| }, | ||
|
|
||
| render: function(){ | ||
| var image = this.image(), | ||
| size = this.size, | ||
| baseMargin = Math.floor(size * this.margin), | ||
| cell = Math.floor((size - (baseMargin * 2)) / 5), | ||
| margin = Math.floor((size - cell * 5) / 2), | ||
| bg = image.color.apply(image, this.background), | ||
| fg = image.color.apply(image, this.foreground); | ||
|
|
||
| // the first 15 characters of the hash control the pixels (even/odd) | ||
| // they are drawn down the middle first, then mirrored outwards | ||
| var i, color; | ||
| for (i = 0; i < 15; i++) { | ||
| color = parseInt(this.hash.charAt(i), 16) % 2 ? bg : fg; | ||
| if (i < 5) { | ||
| this.rectangle(2 * cell + margin, i * cell + margin, cell, cell, color, image); | ||
| } else if (i < 10) { | ||
| this.rectangle(1 * cell + margin, (i - 5) * cell + margin, cell, cell, color, image); | ||
| this.rectangle(3 * cell + margin, (i - 5) * cell + margin, cell, cell, color, image); | ||
| } else if (i < 15) { | ||
| this.rectangle(0 * cell + margin, (i - 10) * cell + margin, cell, cell, color, image); | ||
| this.rectangle(4 * cell + margin, (i - 10) * cell + margin, cell, cell, color, image); | ||
| } | ||
| } | ||
|
|
||
| return image; | ||
| }, | ||
|
|
||
| rectangle: function(x, y, w, h, color, image){ | ||
| if (this.isSvg()) { | ||
| image.rectangles.push({x: x, y: y, w: w, h: h, color: color}); | ||
| } else { | ||
| var i, j; | ||
| for (i = x; i < x + w; i++) { | ||
| for (j = y; j < y + h; j++) { | ||
| image.buffer[image.index(i, j)] = color; | ||
| } | ||
| } | ||
| } | ||
| }, | ||
|
|
||
| // adapted from: https://gist.github.com/aemkei/1325937 | ||
| hsl2rgb: function(h, s, b){ | ||
| h *= 6; | ||
| s = [ | ||
| b += s *= b < .5 ? b : 1 - b, | ||
| b - h % 1 * s * 2, | ||
| b -= s *= 2, | ||
| b, | ||
| b + h % 1 * s, | ||
| b + s | ||
| ]; | ||
|
|
||
| return[ | ||
| s[ ~~h % 6 ] * 255, // red | ||
| s[ (h|16) % 6 ] * 255, // green | ||
| s[ (h|8) % 6 ] * 255 // blue | ||
| ]; | ||
| }, | ||
|
|
||
| toString: function(raw){ | ||
| // backward compatibility with old toString, default to base64 | ||
| if (raw) { | ||
| return this.render().getDump(); | ||
| } else { | ||
| return this.render().getBase64(); | ||
| } | ||
| }, | ||
|
|
||
| isSvg: function(){ | ||
| return this.format.match(/svg/i) | ||
| } | ||
| }; | ||
|
|
||
| var Svg = function(size, foreground, background){ | ||
| this.size = size; | ||
| this.foreground = this.color.apply(this, foreground); | ||
| this.background = this.color.apply(this, background); | ||
| this.rectangles = []; | ||
| }; | ||
|
|
||
| Svg.prototype = { | ||
| size: null, | ||
| foreground: null, | ||
| background: null, | ||
| rectangles: null, | ||
|
|
||
| color: function(r, g, b, a){ | ||
| var values = [r, g, b].map(Math.round); | ||
| values.push((a >= 0) && (a <= 255) ? a/255 : 1); | ||
| return 'rgba(' + values.join(',') + ')'; | ||
| }, | ||
|
|
||
| getDump: function(){ | ||
| var i, | ||
| xml, | ||
| rect, | ||
| fg = this.foreground, | ||
| bg = this.background, | ||
| stroke = this.size * 0.005; | ||
|
|
||
| xml = "<svg xmlns='http://www.w3.org/2000/svg'" | ||
| + " width='" + this.size + "' height='" + this.size + "'" | ||
| + " style='background-color:" + bg + ";'>" | ||
| + "<g style='fill:" + fg + "; stroke:" + fg + "; stroke-width:" + stroke + ";'>"; | ||
|
|
||
| for (i = 0; i < this.rectangles.length; i++) { | ||
| rect = this.rectangles[i]; | ||
| if (rect.color == bg) continue; | ||
| xml += "<rect " | ||
| + " x='" + rect.x + "'" | ||
| + " y='" + rect.y + "'" | ||
| + " width='" + rect.w + "'" | ||
| + " height='" + rect.h + "'" | ||
| + "/>"; | ||
| } | ||
| xml += "</g></svg>" | ||
|
|
||
| return xml; | ||
| }, | ||
|
|
||
| getBase64: function(){ | ||
| if ('function' === typeof btoa) { | ||
| return btoa(this.getDump()); | ||
| } else if (Buffer) { | ||
| return new Buffer(this.getDump(), 'binary').toString('base64'); | ||
| } else { | ||
| throw 'Cannot generate base64 output'; | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') { | ||
| module.exports = Identicon; | ||
| } else { | ||
| window.Identicon = Identicon; | ||
| } | ||
| })(); |
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