From a883ccadb60a3498d01506ab821ed43e39992fe4 Mon Sep 17 00:00:00 2001
From: abe33 <cedric.nehemie@gmail.com>
Date: Sun, 27 Jul 2014 15:12:00 +0200
Subject: [PATCH] :bug: Fix css color function raising exception when invalid

As the other expressions and operations the css color function handler
now set the `isInvalid` property to true if the `convert` method raise
an exception.

Closes abe33/atom-color-highlight#27
---
 src/color-operations.coffee | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/color-operations.coffee b/src/color-operations.coffee
index 75dbc8c..58334df 100644
--- a/src/color-operations.coffee
+++ b/src/color-operations.coffee
@@ -232,8 +232,11 @@ Color.addExpression 'input', "invert#{ps}(#{notQuote})#{pe}", (color, expression
 
 # color(green tint(50%))
 Color.addExpression 'css_color_function', "color#{ps}(#{notQuote})#{pe}", (color, expression) ->
-  rgba = cssColor.convert(expression)
-  color.rgba = new Color(rgba).rgba
+  try
+    rgba = cssColor.convert(expression)
+    color.rgba = new Color(rgba).rgba
+  catch e
+    color.isInvalid = true
 
 parseParam = (param, fileVariables={}, block) ->
   [block, fileVariables] = [fileVariables, {}] if typeof fileVariables is 'function'