Fully end to end encrypted anonymous chat program. Server only stores public key lookup for users and the encrypted messages. No credentials are transfered to the server, but kept in local browser storage. This allows 100% safe chatting.
https://safechat.ch
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29 lines
735 B
29 lines
735 B
9 years ago
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var utils = require('../utils');
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/**
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* Adjust HSL `color` `prop` by `amount`.
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*
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* @param {RGBA|HSLA} color
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* @param {String} prop
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* @param {Unit} amount
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* @return {RGBA}
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* @api private
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*/
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module.exports = function adjust(color, prop, amount){
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utils.assertColor(color, 'color');
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utils.assertString(prop, 'prop');
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utils.assertType(amount, 'unit', 'amount');
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var hsl = color.hsla.clone();
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prop = { hue: 'h', saturation: 's', lightness: 'l' }[prop.string];
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if (!prop) throw new Error('invalid adjustment property');
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var val = amount.val;
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if ('%' == amount.type){
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val = 'l' == prop && val > 0
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? (100 - hsl[prop]) * val / 100
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: hsl[prop] * (val / 100);
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}
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hsl[prop] += val;
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return hsl.rgba;
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};
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