Module: BubbleWrap::String

Defined in:
motion/core/string.rb

Overview

This module contains simplified version of the camelize and underscore methods from ActiveSupport, since these are such common operations when dealing with the Cocoa API.

Instance Method Summary collapse

Instance Method Details

#camelize(uppercase_first_letter = true) ⇒ Object

Convert ‘snake_case’ into ‘CamelCase’



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# File 'motion/core/string.rb', line 8

def camelize(uppercase_first_letter = true)
  string = self.dup
  string.gsub!(/(?:_|(\/))([a-z\d]*)/i) do
    new_word = $2.downcase
    new_word[0] = new_word[0].upcase
    new_word = "/#{new_word}" if $1 == '/'
    new_word
  end
  if uppercase_first_letter && uppercase_first_letter != :lower
    string[0] = string[0].upcase
  else
    string[0] = string[0].downcase
  end
  string.gsub!('/', '::')
  string
end

#to_color ⇒ Object 



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# File 'motion/core/string.rb', line 63

def to_color
  # First check if it is a color keyword
  keyword_selector = "#{self.camelize(:lower)}Color"
  color_klass = App.osx? ? NSColor : UIColor
  return color_klass.send(keyword_selector) if color_klass.respond_to? keyword_selector

  # Next attempt to convert from hex
  hex_color = self.gsub("#", "")
  case hex_color.size
    when 3
      colors = hex_color.scan(%r{[0-9A-Fa-f]}).map!{ |el| (el * 2).to_i(16) }
    when 6
      colors = hex_color.scan(%r<[0-9A-Fa-f]{2}>).map!{ |el| el.to_i(16) }
    when 8
      colors = hex_color.scan(%r<[0-9A-Fa-f]{2}>).map!{ |el| el.to_i(16) }
    else
      raise ArgumentError
  end
  if colors.size == 3
    BubbleWrap.rgb_color(colors[0], colors[1], colors[2])
  elsif colors.size == 4
    BubbleWrap.rgba_color(colors[1], colors[2], colors[3], colors[0])
  else
    raise ArgumentError
  end
end

#to_encoded_data(encoding = NSUTF8StringEncoding) ⇒ Object 



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# File 'motion/core/string.rb', line 59

def to_encoded_data(encoding = NSUTF8StringEncoding)
  dataUsingEncoding encoding
end

#to_url_decoded(encoding = nil, legacy = false) ⇒ Object 



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# File 'motion/core/string.rb', line 46

def to_url_decoded(encoding = nil, legacy = false)
  if legacy
    stringByReplacingPercentEscapesUsingEncoding(encoding || NSUTF8StringEncoding)
  else
    if encoding
      encoding = CFStringConvertNSStringEncodingToEncoding(encoding) unless CFStringIsEncodingAvailable(encoding)
      CFURLCreateStringByReplacingPercentEscapesUsingEncoding(nil, self, nil, encoding)
    else
      CFURLCreateStringByReplacingPercentEscapes(nil, self, nil)
    end
  end
end

#to_url_encoded(encoding = nil, legacy = false) ⇒ Object 



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# File 'motion/core/string.rb', line 36

def to_url_encoded(encoding = nil, legacy = false)
  if legacy
    stringByAddingPercentEscapesUsingEncoding(encoding || NSUTF8StringEncoding)
  else
    encoding ||= KCFStringEncodingUTF8
    encoding = CFStringConvertNSStringEncodingToEncoding(encoding) unless CFStringIsEncodingAvailable(encoding)
    CFURLCreateStringByAddingPercentEscapes(nil, self, nil, "!*'();:@&=+$,/?%#[]", encoding)
  end
end

#underscore ⇒ Object

Convert ‘CamelCase’ into ‘snake_case’



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# File 'motion/core/string.rb', line 26

def underscore
  word = self.dup
  word.gsub!(/::/, '/')
  word.gsub!(/([A-Z\d]+)([A-Z][a-z])/,'\1_\2')
  word.gsub!(/([a-z\d])([A-Z])/,'\1_\2')
  word.tr!("-", "_")
  word.downcase!
  word
end