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January 2, 2016 00:19
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| $.parseColor = (color) -> | |
| cache = undefined | |
| p = parseInt # Use p as a byte saving reference to parseInt | |
| color = color.replace(/\s\s*/g, "") # Remove all spaces | |
| #var | |
| # Checks for 6 digit hex and converts string to integer | |
| if cache = /^#([\da-fA-F]{2})([\da-fA-F]{2})([\da-fA-F]{2})/.exec(color) | |
| cache = [p(cache[1], 16), p(cache[2], 16), p(cache[3], 16)] | |
| # Checks for 3 digit hex and converts string to integer | |
| else if cache = /^#([\da-fA-F])([\da-fA-F])([\da-fA-F])/.exec(color) | |
| cache = [p(cache[1], 16) * 17, p(cache[2], 16) * 17, p(cache[3], 16) * 17] | |
| # Checks for rgba and converts string to | |
| # integer/float using unary + operator to save bytes | |
| else if cache = /^rgba\(([\d]+),([\d]+),([\d]+),([\d]+|[\d]*.[\d]+)\)/.exec(color) | |
| cache = [+cache[1], +cache[2], +cache[3], +cache[4]] | |
| # Checks for rgb and converts string to | |
| # integer/float using unary + operator to save bytes | |
| else if cache = /^rgb\(([\d]+),([\d]+),([\d]+)\)/.exec(color) | |
| cache = [+cache[1], +cache[2], +cache[3]] | |
| # Otherwise throw an exception to make debugging easier | |
| else | |
| throw Error(color + " is not supported by $.parseColor") | |
| # Performs RGBA conversion by default | |
| isNaN(cache[3]) and (cache[3] = 1) | |
| # Adds or removes 4th value based on rgba support | |
| # Support is flipped twice to prevent erros if | |
| # it's not defined | |
| cache.slice 0, 3 + !!$.support.rgba | |
| sanityCheck = (str) -> | |
| if str? and | |
| str.length > 0 and | |
| str isnt "transparent" and | |
| str isnt "inherit" and | |
| str isnt "initial" and | |
| str isnt "rgba(0, 0, 0, 0)" | |
| return true | |
| else | |
| return false | |
| soften = (col) -> | |
| sum = 0 | |
| min = 0 | |
| max = 0 | |
| med = 0 | |
| coldiff = [] | |
| for i, c of col | |
| sum += c | |
| min = c if c < min | |
| max = c if c > max | |
| med += c/3 | |
| soft = [] | |
| for i, c of col | |
| if sum < 384 | |
| #soft.push 128 | |
| soft.push (128 - med/2) + (c - med)/2 | |
| else | |
| soft.push 10 | |
| return soft | |
| toCss = (col) -> | |
| "rgba(#{col[0]},#{col[1]},#{col[2]},1.0)" | |
| cmdPush = (e, prop, cmds) -> | |
| bg = $(e).css prop | |
| if sanityCheck bg | |
| parsed = $.parseColor bg | |
| cmds.push | |
| prop: prop | |
| col: (toCss soften parsed) | |
| elem: e | |
| cmds = [] | |
| for e in $("*") | |
| cmdPush e, "background-color", cmds | |
| cmdPush e, "color", cmds | |
| for cmd in cmds | |
| $(cmd.elem).css cmd.prop, cmd.col |
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