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New colour generator
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@ -1,6 +1,8 @@
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/**
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* ownCloud
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*
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* @author John Molakvoæ
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* @copyright 2016 John Molakvoæ <fremulon@protonmail.com>
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* @author Morris Jobke
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* @copyright 2013 Morris Jobke <morris.jobke@gmail.com>
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*
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@ -48,16 +50,64 @@
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(function ($) {
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$.fn.imageplaceholder = function(seed, text, size) {
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// set optional argument "text" to value of "seed" if undefined
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text = text || seed;
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var hash = md5(seed).substring(0, 4),
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maxRange = parseInt('ffff', 16),
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hue = parseInt(hash, 16) / maxRange * 256,
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height = this.height() || size || 32;
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this.css('background-color', 'hsl(' + hue + ', 90%, 65%)');
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var hash = seed.toLowerCase().replace(/[^0-9a-f]+/g, '');
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// Already a md5 hash?
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if( !hash.match(/^[0-9a-f]{32}$/g) ) {
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hash = md5(hash);
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}
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function rgbToHsl(r, g, b) {
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r /= 255, g /= 255, b /= 255;
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var max = Math.max(r, g, b), min = Math.min(r, g, b);
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var h, s, l = (max + min) / 2;
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if(max === min) {
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h = s = 0; // achromatic
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} else {
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var d = max - min;
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s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
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switch(max) {
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case r: h = (g - b) / d + (g < b ? 6 : 0); break;
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case g: h = (b - r) / d + 2; break;
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case b: h = (r - g) / d + 4; break;
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}
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h /= 6;
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}
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return [h, s, l];
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}
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// Init vars
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var result = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
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var rgb = [0, 0, 0];
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var sat = 80;
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var lum = 68;
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var modulo = 16;
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// Splitting evenly the string
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for(var i in hash) {
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result[i%modulo] = result[i%modulo] + parseInt(hash.charAt(i), 16).toString();
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}
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// Converting our data into a usable rgb format
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// Start at 1 because 16%3=1 but 15%3=0 and makes the repartition even
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for(var count=1;count<modulo;count++) {
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rgb[count%3] += parseInt(result[count]);
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}
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var hsl = rgbToHsl(rgb[0], rgb[1], rgb[2]);
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// Classic formulla to check the brigtness for our eye
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// If too bright, lower the sat
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var bright = Math.sqrt( 0.299 * Math.pow(rgb[0], 2) + 0.587 * Math.pow(rgb[1], 2) + 0.114 * Math.pow(rgb[2], 2) );
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if (bright >= 200) {
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sat = 60;
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}
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var hue = parseInt(hsl[0] * 360);
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this.css('background-color', 'hsl('+hue+', '+sat+'%, '+lum+'%)');
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// Placeholders are square
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var height = this.height() || size || 32;
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this.height(height);
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this.width(height);
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