Initial import

app/helpers/stylesheets_helper.rb

@@ -0,0 +1,47 @@
+# Engenharia de Software 2007.1
+# Copyright (C) 2007, Adriano, Alinson, Andre, Rafael e Bustamante
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+# GNU General Public License for more details.
+
+module StylesheetsHelper
+
+	def browser_is? name
+		name = name.to_s.strip
+		return true if browser_name == name
+		return true if name == 'mozilla' && browser_name == 'gecko'
+		return true if name == 'ie' && browser_name.index('ie')
+		return true if name == 'webkit' && browser_name == 'safari'
+	
+	end
+
+	def browser_name
+		@browser_name ||= begin
+			ua = request.env['HTTP_USER_AGENT'].downcase
+			if ua.index('msie') && !ua.index('opera') && !ua.index('webtv')
+				'ie'+ua[ua.index('msie')+5].chr
+			elsif ua.index('gecko/') 
+				'gecko'
+			elsif ua.index('opera')
+				'opera'
+			elsif ua.index('konqueror') 
+				'konqueror'
+			elsif ua.index('applewebkit/')
+				'safari'
+			elsif ua.index('mozilla/')
+				'gecko'
+			end
+		end
+	end
+
+	def ie?
+		return browser_is?('ie')
+	end
+end