Class: StyleSheet

Inherits:
Object
  • Object
show all
Defined in:
lib/csspress/style_sheet.rb

Overview

StyleSheet is a container class for Rule objects which can be added individually using the .add() method. The Rule objects that StyleSheet contains can be accessed using the .each_rule(){} method which yields each Rule to the block.

Example:

ss = StyleSheet.new
ss.add( Rule.new("A Rule") )
tb = TemplateBuilder.new ( ss )
puts tb.publish # output compressed version of ss

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StyleSheet

Returns a new instance of StyleSheet.



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# File 'lib/csspress/style_sheet.rb', line 23

def initialize
  # Store style rules in order
  @rules = []
end

Instance Method Details

#add(rule) ⇒ Object

Add rule to StyleSheet Raises ArgumentError rule is not a Rule

Raises:

  • (ArgumentError) 


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# File 'lib/csspress/style_sheet.rb', line 30

def add(rule)
  raise ArgumentError unless rule.instance_of?(Rule) 
  @rules << rule
  @self
end

#each_rule ⇒ Object

Iterate through all rules in self and yield them to a block



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# File 'lib/csspress/style_sheet.rb', line 43

def each_rule
  @rules.each {|r| yield r }
end

#rules ⇒ Object

Return an array of all rules in self



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# File 'lib/csspress/style_sheet.rb', line 48

def rules
  @rules.dup
end

#size ⇒ Object

The number of rules in self



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# File 'lib/csspress/style_sheet.rb', line 37

def size
  @rules.size
end

#to_s ⇒ Object 



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# File 'lib/csspress/style_sheet.rb', line 52

def to_s
  out = ""
  @rules.each do |rule|
    out << rule.to_s
  end
  out
end