Class: Compositor::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/compositor/base.rb

Direct Known Subclasses

Composite, Leaf

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(view_context, attrs = {}) ⇒ Base

Returns a new instance of Base.



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# File 'lib/compositor/base.rb', line 9

def initialize(view_context, attrs = {})
  @attrs = attrs
  self.context = view_context
  attrs.each_pair do |key, value|
    self.send("#{key}=", value)
  end
end

Instance Attribute Details

#attrs ⇒ Object (readonly)

Returns the value of attribute attrs.



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# File 'lib/compositor/base.rb', line 6

def attrs
  @attrs
end

#context ⇒ Object

Returns the value of attribute context.



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# File 'lib/compositor/base.rb', line 7

def context
  @context
end

#root ⇒ Object

Returns the value of attribute root.



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# File 'lib/compositor/base.rb', line 7

def root
  @root
end

Class Method Details

.inherited(subclass) ⇒ Object 



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# File 'lib/compositor/base.rb', line 41

def self.inherited(subclass)
  method_name = subclass.original_dsl_name
  unless method_name.eql?("base") || method_name.start_with?("abstract")
    # check if it's already defined
    if Compositor::DSL.instance_methods.include?(method_name.to_sym)
      raise MethodAlreadyDefinedError.new("Method #{method_name} is already defined on the DSL class.")
    end
    Compositor::DSL.send(:define_method, method_name) do |*args, &block|
      subclass.
        new(@context, *args).
        dsl(self, &block)
    end
  end
end

.original_dsl_name ⇒ Object 



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# File 'lib/compositor/base.rb', line 37

def self.original_dsl_name
  self.name.gsub(/(Compositor$)/, '').gsub(/::/, '_').underscore
end

Instance Method Details

#dsl ⇒ Object 



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# File 'lib/compositor/base.rb', line 56

def dsl
  raise "Implement in subclasses"
end

#include_root? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/compositor/base.rb', line 33

def include_root?
  self.root ? true : false
end

#to_h ⇒ Object 



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# File 'lib/compositor/base.rb', line 25

def to_h
  to_hash
end

#to_hash ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/compositor/base.rb', line 17

def to_hash
  raise NotImplementedError.new("Abstract method, should be implemented by subclasses")
end

#to_json(options = {}) ⇒ Object 



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# File 'lib/compositor/base.rb', line 29

def to_json(options = {})
  Oj.dump(to_hash)
end

#with_root_element ⇒ Object 



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# File 'lib/compositor/base.rb', line 21

def with_root_element
  include_root? ? {root => yield} : yield
end