Class: CssTidy::StyleSheet

Inherits:
Object
  • Object
show all
Defined in:
lib/modules/css_stylesheet.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StyleSheet

Returns a new instance of StyleSheet.



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# File 'lib/modules/css_stylesheet.rb', line 7

def initialize
	# nodes can contain any kind of object:
	# * charset
	# * media (which can contain media or rulesets)
	# * rulesets
	@nodes = []
	@charset = ''
	@in_media = false
end

Instance Attribute Details

#in_media ⇒ Object Also known as: end_at_block

Returns the value of attribute in_media.



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# File 'lib/modules/css_stylesheet.rb', line 4

def in_media
  @in_media
end

Instance Method Details

#<<(object) ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 17

def << (object)
	# if we are in media block, then add object to the last node
	if @in_media
		if object.class == CssTidy::MediaSet
			@nodes << object
		else
			@nodes.last << object
		end
	else
		@nodes << object
		if object.class == CssTidy::MediaSet
			@in_media = true
		end
	end
end

#charset ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 54

def charset
	@charset
end

#charset=(charset) ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 45

def charset=(charset)
	if @charset.empty?
		@charset = charset.strip
		return true
	else
		return false
	end
end

#inspect ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 102

def inspect
	indent = '  '
	puts "Stylesheet"
	@nodes.each_with_index do |node, idx|
		case node.class.to_s
		when 'CssTidy::RuleSet'
			puts " + RuleSet"
		when 'CssTidy::Comment'
			puts " + Comment"
		end
		node.inspect(indent)
#				puts node.class
	end
end

#optimize(options = {}) ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 58

def optimize(options={})
	keep_next_comment = false

	@nodes.each_with_index do |node, idx|
		if node.class == CssTidy::Comment
			if node.is_special? && options[:keep_special_comments]
				next # do nothing
			elsif node.is_ie5_hack? && options[:keep_ie5_comment_hack] && ! options[:optimize_selectors]
				node.text = '\\'  # replace it
				keep_next_comment = true
			elsif keep_next_comment
				node.text = ''  # replace it
				keep_next_comment = false
			elsif ! options[:keep_comments]
				node.printable = false # don't print this one
			end
		end
		node.optimize(options)
	end

	if options[:optimize_selectors]
		nodes_to_remove = []
		length = @nodes.length
		@nodes.each_with_index do |node, index|
			if node.class == CssTidy::RuleSet
				idx = index
				# Check if properties also exist in another RuleSet
				while idx < length -1
					idx += 1 # start at the next one
					# just Rulsets
					if @nodes[idx].class == CssTidy::RuleSet
						if ! node.empty? && node == @nodes[idx]
							node += @nodes[idx]
							nodes_to_remove << idx
							@nodes[idx].clear
						end
			 		end
		      end
			end
		end
	end

end

#to_s(format = :one_line) ⇒ Object 



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# File 'lib/modules/css_stylesheet.rb', line 33

def to_s(format=:one_line)
	css = ''
	if ! @charset.empty?
		css << "@charset #{@charset};" + ((format == :multi_line) ? "\n" : '')
	end

	@nodes.each do |node|
		css << node.to_s(format) + ((format == :multi_line) ? "\n" : '')
	end
	css
end