Class: Habaki::MediaQuery

Inherits:
Node
  • Object
show all
Defined in:
lib/habaki/media_rule.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Node

#to_s

Constructor Details

#initialize ⇒ MediaQuery

Returns a new instance of MediaQuery.



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# File 'lib/habaki/media_rule.rb', line 61

def initialize
  @expressions = []
end

Instance Attribute Details

#expressions ⇒ Array<MediaQueryExpression>

Returns:



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# File 'lib/habaki/media_rule.rb', line 59

def expressions
  @expressions
end

#restrictor ⇒ Symbol

Returns:

  • (Symbol) 


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# File 'lib/habaki/media_rule.rb', line 57

def restrictor
  @restrictor
end

#type ⇒ String

Returns:



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# File 'lib/habaki/media_rule.rb', line 55

def type
  @type
end

Instance Method Details

#media_match?(media) ⇒ Boolean

Parameters:

Returns:

  • (Boolean) 


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# File 'lib/habaki/media_rule.rb', line 78

def media_match?(media)
  return false unless media_match_type?(media.type)
  @expressions.each do |exp|
    return false unless exp.media_match?(media)
  end
  true
end

#media_match_type?(mediatype = "all") ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/habaki/media_rule.rb', line 65

def media_match_type?(mediatype = "all")
  return true unless mediatype
  case @restrictor
  when :none, :only
    @type == mediatype || @type == "all" || !mediatype
  when :not
    @type != mediatype
  else
    false
  end
end

#read_from_katana(med) ⇒ void

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method returns an undefined value.

Parameters:



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# File 'lib/habaki/media_rule.rb', line 102

def read_from_katana(med)
  @type = med.type
  @restrictor = med.restrictor
  med.expressions.each do |exp|
    @expressions << MediaQueryExpression.read_from_katana(exp)
  end
end

#string(format = Formatter::Base.new) ⇒ String

Parameters:

Returns:



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# File 'lib/habaki/media_rule.rb', line 88

def string(format = Formatter::Base.new)
  str = (@restrictor != :none ? @restrictor.to_s + " " : "") + (@type ? @type : "")
  if @expressions.any?
    @expressions.each do |exp|
      str += " and " if str != ""
      str += exp.string(format)
    end
  end
  str
end