Class: Apropos::MediaQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/apropos/media_query.rb

Overview

MediaQuery wraps a media query string with several features:

  • Parenthesizes queries when necessary

  • Can be combined with other MediaQuery objects

  • Can be compared to ClassList or MediaQuery objects via #type, #sort_value

  • Can be converted to CSS output

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query_string, sort_value = 0) ⇒ MediaQuery

Returns a new instance of MediaQuery.



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# File 'lib/apropos/media_query.rb', line 10

def initialize(query_string, sort_value=0)
  @query_list = query_string.split(',').map { |q| parenthesize(q.strip) }
  @sort_value = sort_value
end

Instance Attribute Details

#query_list ⇒ Object (readonly)

Returns the value of attribute query_list.



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# File 'lib/apropos/media_query.rb', line 8

def query_list
  @query_list
end

#sort_value ⇒ Object (readonly)

Returns the value of attribute sort_value.



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# File 'lib/apropos/media_query.rb', line 8

def sort_value
  @sort_value
end

Instance Method Details

#combine(other) ⇒ Object 



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# File 'lib/apropos/media_query.rb', line 23

def combine(other)
  other_ql = other.query_list
  combo = query_list.map do |q|
    other_ql.map do |q2|
      "#{q} and #{q2}"
    end
  end.flatten
  self.class.new(combo.join(', '))
end

#parenthesize(query) ⇒ Object 



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# File 'lib/apropos/media_query.rb', line 15

def parenthesize(query)
  unless query =~ /^\(.+\)$/
    "(#{query})"
  else
    query
  end
end

#to_css ⇒ Object 



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# File 'lib/apropos/media_query.rb', line 33

def to_css
  query_list.join(", ")
end

#type ⇒ Object 



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# File 'lib/apropos/media_query.rb', line 37

def type
  "media"
end