Class: Paggio::HTML::Element

Inherits:
BasicObject
Defined in:
lib/paggio/format.rb,
lib/paggio/html/element.rb

Constant Summary collapse

Format = 
::Paggio::Format

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(owner, name, attributes = {}) ⇒ Element

Returns a new instance of Element.



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# File 'lib/paggio/html/element.rb', line 29

def initialize(owner, name, attributes = {})
  @owner      = owner
  @name       = name
  @attributes = attributes
  @children   = []
  @class      = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, content = nil, &block) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 57

def method_missing(name, content = nil, &block)
  if content
    self << content
  end

  if name.to_s.end_with? ?!
    @attributes[:id] = name[0 .. -2]
  else
    @last = name
    @class.push(name)
  end

  @owner.extend!(self, &block) if block

  self
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/paggio/html/element.rb', line 26

def attributes
  @attributes
end

#inner_html ⇒ Object

Returns the value of attribute inner_html.



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# File 'lib/paggio/html/element.rb', line 27

def inner_html
  @inner_html
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/paggio/html/element.rb', line 26

def name
  @name
end

Class Method Details

.new(owner, name, attributes = {}) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 14

def self.new(owner, name, attributes = {})
  return super unless self == Element

  const = name.capitalize

  if const_defined?(const)
    const_get(const).new(owner, name, attributes)
  else
    super
  end
end

Instance Method Details

#<<(what) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 45

def <<(what)
  @children << what

  self
end

#[](*names) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 74

def [](*names)
  return unless @last

  @class.delete(@last)
  @class.push([@last, *names].join('-'))

  self
end

#do(&block) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 83

def do(&block)
  @owner.extend!(self, &block)

  self
end

#each(&block) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 37

def each(&block)
  return enum_for :each unless block

  @children.each(&block)

  self
end

#format(io = ::StringIO.new, options = { indent: 0 }) ⇒ Object 



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# File 'lib/paggio/format.rb', line 50

def format(io = ::StringIO.new, options = { indent: 0 })
  if @attributes.empty? && @class.empty?
    Format.puts io, "<#{name}>", options[:indent]
  else
    attrs = @attributes.map {|name, value|
      "#{Format.escape(name)}=\"#{Format.escape(value)}\""
    }

    unless @class.empty?
      attrs << "class=\"#{Format.escape(@class.join(' '))}\""
    end

    Format.puts io, "<#{name} #{attrs.join(' ')}>", options[:indent]
  end

  each {|child|
    case child
    when ::String
      child.lines.each {|line|
        Format.puts io, line.strip, options[:indent] + 1
      }

    when CSS
      Format.puts io, "<style>", options[:indent] + 1
      child.format(io, indent: options[:indent] + 2)
      Format.puts io, "</style>", options[:indent] + 1

    else
      child.format(io, indent: options[:indent] + 1)
    end

    io.puts
  }

  io.seek(-1, ::IO::SEEK_CUR)

  Format.puts io, "</#{name}>", @children.empty? ? 0 : options[:indent]

  io
end

#inspect ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 89

def inspect
  if @children.empty?
    "#<HTML::Element(#{@name.upcase})>"
  else
    "#<HTML::Element(#{@name.upcase}): #{@children.inspect[1 .. -2]}>"
  end
end

#text(text) ⇒ Object 



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# File 'lib/paggio/html/element.rb', line 51

def text(text)
  @children << text.to_s

  self
end