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-rw-r--r--public/js/index.js12
-rw-r--r--public/vendor/randomColor.js389
-rw-r--r--public/views/foot.ejs1
3 files changed, 401 insertions, 1 deletions
diff --git a/public/js/index.js b/public/js/index.js
index 5f7e6992..4d617adb 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -118,11 +118,21 @@ var supportBlockquoteTags = [
},
},
{
- text: '[color tag]',
+ text: '[my color tag]',
search: '[]',
command: function () {
return '[color=' + personalInfo.color + ']';
}
+ },
+ {
+ text: '[random color tag]',
+ search: '[]',
+ command: function () {
+ var color = randomColor({
+ luminosity: 'light'
+ });
+ return '[color=' + color + ']';
+ }
}
];
var modeType = {
diff --git a/public/vendor/randomColor.js b/public/vendor/randomColor.js
new file mode 100644
index 00000000..2dfcfa4a
--- /dev/null
+++ b/public/vendor/randomColor.js
@@ -0,0 +1,389 @@
+;(function(root, factory) {
+
+ // Support AMD
+ if (typeof define === 'function' && define.amd) {
+ define([], factory);
+
+ // Support CommonJS
+ } else if (typeof exports === 'object') {
+ var randomColor = factory();
+
+ // Support NodeJS & Component, which allow module.exports to be a function
+ if (typeof module === 'object' && module && module.exports) {
+ exports = module.exports = randomColor;
+ }
+
+ // Support CommonJS 1.1.1 spec
+ exports.randomColor = randomColor;
+
+ // Support vanilla script loading
+ } else {
+ root.randomColor = factory();
+ };
+
+}(this, function() {
+
+ // Seed to get repeatable colors
+ var seed = null;
+
+ // Shared color dictionary
+ var colorDictionary = {};
+
+ // Populate the color dictionary
+ loadColorBounds();
+
+ var randomColor = function(options) {
+ if (options.seed && !seed) seed = options.seed;
+ options = options || {};
+
+ var H,S,B;
+
+ // Check if we need to generate multiple colors
+ if (options.count != null) {
+
+ var totalColors = options.count,
+ colors = [];
+
+ options.count = null;
+
+ while (totalColors > colors.length) {
+ colors.push(randomColor(options));
+ }
+
+ options.count = totalColors;
+
+ //Keep the seed constant between runs.
+ if (options.seed) seed = options.seed;
+
+ return colors;
+ }
+
+ // First we pick a hue (H)
+ H = pickHue(options);
+
+ // Then use H to determine saturation (S)
+ S = pickSaturation(H, options);
+
+ // Then use S and H to determine brightness (B).
+ B = pickBrightness(H, S, options);
+
+ // Then we return the HSB color in the desired format
+ return setFormat([H,S,B], options);
+ };
+
+ function pickHue (options) {
+
+ var hueRange = getHueRange(options.hue),
+ hue = randomWithin(hueRange);
+
+ // Instead of storing red as two seperate ranges,
+ // we group them, using negative numbers
+ if (hue < 0) {hue = 360 + hue}
+
+ return hue;
+
+ }
+
+ function pickSaturation (hue, options) {
+
+ if (options.luminosity === 'random') {
+ return randomWithin([0,100]);
+ }
+
+ if (options.hue === 'monochrome') {
+ return 0;
+ }
+
+ var saturationRange = getSaturationRange(hue);
+
+ var sMin = saturationRange[0],
+ sMax = saturationRange[1];
+
+ switch (options.luminosity) {
+
+ case 'bright':
+ sMin = 55;
+ break;
+
+ case 'dark':
+ sMin = sMax - 10;
+ break;
+
+ case 'light':
+ sMax = 55;
+ break;
+ }
+
+ return randomWithin([sMin, sMax]);
+
+ }
+
+ function pickBrightness (H, S, options) {
+
+ var brightness,
+ bMin = getMinimumBrightness(H, S),
+ bMax = 100;
+
+ switch (options.luminosity) {
+
+ case 'dark':
+ bMax = bMin + 20;
+ break;
+
+ case 'light':
+ bMin = (bMax + bMin)/2;
+ break;
+
+ case 'random':
+ bMin = 0;
+ bMax = 100;
+ break;
+ }
+
+ return randomWithin([bMin, bMax]);
+
+ }
+
+ function setFormat (hsv, options) {
+
+ switch (options.format) {
+
+ case 'hsvArray':
+ return hsv;
+
+ case 'hslArray':
+ return HSVtoHSL(hsv);
+
+ case 'hsl':
+ var hsl = HSVtoHSL(hsv);
+ return 'hsl('+hsl[0]+', '+hsl[1]+'%, '+hsl[2]+'%)';
+
+ case 'rgbArray':
+ return HSVtoRGB(hsv);
+
+ case 'rgb':
+ var rgb = HSVtoRGB(hsv);
+ return 'rgb(' + rgb.join(', ') + ')';
+
+ default:
+ return HSVtoHex(hsv);
+ }
+
+ }
+
+ function getMinimumBrightness(H, S) {
+
+ var lowerBounds = getColorInfo(H).lowerBounds;
+
+ for (var i = 0; i < lowerBounds.length - 1; i++) {
+
+ var s1 = lowerBounds[i][0],
+ v1 = lowerBounds[i][1];
+
+ var s2 = lowerBounds[i+1][0],
+ v2 = lowerBounds[i+1][1];
+
+ if (S >= s1 && S <= s2) {
+
+ var m = (v2 - v1)/(s2 - s1),
+ b = v1 - m*s1;
+
+ return m*S + b;
+ }
+
+ }
+
+ return 0;
+ }
+
+ function getHueRange (colorInput) {
+
+ if (typeof parseInt(colorInput) === 'number') {
+
+ var number = parseInt(colorInput);
+
+ if (number < 360 && number > 0) {
+ return [number, number];
+ }
+
+ }
+
+ if (typeof colorInput === 'string') {
+
+ if (colorDictionary[colorInput]) {
+ var color = colorDictionary[colorInput];
+ if (color.hueRange) {return color.hueRange}
+ }
+ }
+
+ return [0,360];
+
+ }
+
+ function getSaturationRange (hue) {
+ return getColorInfo(hue).saturationRange;
+ }
+
+ function getColorInfo (hue) {
+
+ // Maps red colors to make picking hue easier
+ if (hue >= 334 && hue <= 360) {
+ hue-= 360;
+ }
+
+ for (var colorName in colorDictionary) {
+ var color = colorDictionary[colorName];
+ if (color.hueRange &&
+ hue >= color.hueRange[0] &&
+ hue <= color.hueRange[1]) {
+ return colorDictionary[colorName];
+ }
+ } return 'Color not found';
+ }
+
+ function randomWithin (range) {
+ if (seed == null) {
+ return Math.floor(range[0] + Math.random()*(range[1] + 1 - range[0]));
+ } else {
+ //Seeded random algorithm from http://indiegamr.com/generate-repeatable-random-numbers-in-js/
+ var max = range[1] || 1;
+ var min = range[0] || 0;
+ seed = (seed * 9301 + 49297) % 233280;
+ var rnd = seed / 233280.0;
+ return Math.floor(min + rnd * (max - min));
+ }
+ }
+
+ function HSVtoHex (hsv){
+
+ var rgb = HSVtoRGB(hsv);
+
+ function componentToHex(c) {
+ var hex = c.toString(16);
+ return hex.length == 1 ? "0" + hex : hex;
+ }
+
+ var hex = "#" + componentToHex(rgb[0]) + componentToHex(rgb[1]) + componentToHex(rgb[2]);
+
+ return hex;
+
+ }
+
+ function defineColor (name, hueRange, lowerBounds) {
+
+ var sMin = lowerBounds[0][0],
+ sMax = lowerBounds[lowerBounds.length - 1][0],
+
+ bMin = lowerBounds[lowerBounds.length - 1][1],
+ bMax = lowerBounds[0][1];
+
+ colorDictionary[name] = {
+ hueRange: hueRange,
+ lowerBounds: lowerBounds,
+ saturationRange: [sMin, sMax],
+ brightnessRange: [bMin, bMax]
+ };
+
+ }
+
+ function loadColorBounds () {
+
+ defineColor(
+ 'monochrome',
+ null,
+ [[0,0],[100,0]]
+ );
+
+ defineColor(
+ 'red',
+ [-26,18],
+ [[20,100],[30,92],[40,89],[50,85],[60,78],[70,70],[80,60],[90,55],[100,50]]
+ );
+
+ defineColor(
+ 'orange',
+ [19,46],
+ [[20,100],[30,93],[40,88],[50,86],[60,85],[70,70],[100,70]]
+ );
+
+ defineColor(
+ 'yellow',
+ [47,62],
+ [[25,100],[40,94],[50,89],[60,86],[70,84],[80,82],[90,80],[100,75]]
+ );
+
+ defineColor(
+ 'green',
+ [63,178],
+ [[30,100],[40,90],[50,85],[60,81],[70,74],[80,64],[90,50],[100,40]]
+ );
+
+ defineColor(
+ 'blue',
+ [179, 257],
+ [[20,100],[30,86],[40,80],[50,74],[60,60],[70,52],[80,44],[90,39],[100,35]]
+ );
+
+ defineColor(
+ 'purple',
+ [258, 282],
+ [[20,100],[30,87],[40,79],[50,70],[60,65],[70,59],[80,52],[90,45],[100,42]]
+ );
+
+ defineColor(
+ 'pink',
+ [283, 334],
+ [[20,100],[30,90],[40,86],[60,84],[80,80],[90,75],[100,73]]
+ );
+
+ }
+
+ function HSVtoRGB (hsv) {
+
+ // this doesn't work for the values of 0 and 360
+ // here's the hacky fix
+ var h = hsv[0];
+ if (h === 0) {h = 1}
+ if (h === 360) {h = 359}
+
+ // Rebase the h,s,v values
+ h = h/360;
+ var s = hsv[1]/100,
+ v = hsv[2]/100;
+
+ var h_i = Math.floor(h*6),
+ f = h * 6 - h_i,
+ p = v * (1 - s),
+ q = v * (1 - f*s),
+ t = v * (1 - (1 - f)*s),
+ r = 256,
+ g = 256,
+ b = 256;
+
+ switch(h_i) {
+ case 0: r = v, g = t, b = p; break;
+ case 1: r = q, g = v, b = p; break;
+ case 2: r = p, g = v, b = t; break;
+ case 3: r = p, g = q, b = v; break;
+ case 4: r = t, g = p, b = v; break;
+ case 5: r = v, g = p, b = q; break;
+ }
+ var result = [Math.floor(r*255), Math.floor(g*255), Math.floor(b*255)];
+ return result;
+ }
+
+ function HSVtoHSL (hsv) {
+ var h = hsv[0],
+ s = hsv[1]/100,
+ v = hsv[2]/100,
+ k = (2-s)*v;
+
+ return [
+ h,
+ Math.round(s*v / (k<1 ? k : 2-k) * 10000) / 100,
+ k/2 * 100
+ ];
+ }
+
+ return randomColor;
+}));
diff --git a/public/views/foot.ejs b/public/views/foot.ejs
index 0e808e6a..e950cf51 100644
--- a/public/views/foot.ejs
+++ b/public/views/foot.ejs
@@ -34,6 +34,7 @@
<script src="/vendor/md5.min.js" defer></script>
<script src="/vendor/md-toc.js" defer></script>
<script src="/vendor/showup/showup.js" defer></script>
+<script src="/vendor/randomColor.js" defer></script>
<script type="text/javascript" src="https://www.dropbox.com/static/api/2/dropins.js" id="dropboxjs" data-app-key="rdoizrlnkuha23r" async defer></script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({ messageStyle: "none", skipStartupTypeset: true ,tex2jax: {inlineMath: [['$','$'], ['\\(','\\)']], processEscapes: true }});
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 01:34:00 +0000