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check presence for cssobject isColorDark inquery

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Benjamin ter Kuile
2015-10-01 14:44:58 +02:00
parent 52afec3146
commit 96e0daf31b
1 changed files with 1 additions and 1 deletions
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app/assets/javascripts/supplier/app/services/css-object.js.coffee
+1 -1
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@@ -19,7 +19,7 @@ App.CssObject.reopenClass
[r, g, b] [r, g, b]
isColorDark: (rgb_hex)-> isColorDark: (rgb_hex)->
return false unless rbg_hex.match /#[0-9a-zA-Z]{6}/ return false unless rgb_hex and rbg_hex.match /#[0-9a-zA-Z]{6}/
[r, g, b] = @rgb_to_numeric(rgb_hex) [r, g, b] = @rgb_to_numeric(rgb_hex)
luma = 0.2126 * r + 0.7152 * g + 0.0722 * b # per ITU-R BT.709 luma = 0.2126 * r + 0.7152 * g + 0.0722 * b # per ITU-R BT.709
luma < 40 luma < 40