Class: Wee::AnswerDecoration

Inherits:
Decoration show all
Defined in:
lib/wee/core/decoration.rb

Overview

A Wee::AnswerDecoration is wrapped around a component that will call Component#answer. This makes it possible to use such components without the need to call them (Component#call), e.g. as child components of other components.

Instance Attribute Summary collapse

Attributes inherited from Decoration

#owner

Instance Method Summary collapse

Methods inherited from Decoration

#backtrack_state, #do_render, #global?, #restore_snapshot, #take_snapshot

Methods inherited from Presenter

#backtrack_state, #do_render, #get_property, #lookup_property, #properties, #properties=, #render, #session, template, uses_property

Instance Attribute Details

#on_answer ⇒ Object

When a component answers, on_answer.call(args) will be executed (unless nil), where args are the arguments passed to Component#answer. Note that no snapshot of on_answer is taken, so you should avoid modifying it!



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# File 'lib/wee/core/decoration.rb', line 129

def on_answer
  @on_answer
end

Instance Method Details

#process_callbacks(&block) ⇒ Object 



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# File 'lib/wee/core/decoration.rb', line 131

def process_callbacks(&block)
  args = catch(:wee_answer) { super; nil }
  if args != nil
    # return to the calling component 
    @on_answer.call(*args) if @on_answer
  end
end