Module: Cheri::Java::Builder::EventMethodConsumer

Defined in:
lib/cheri/java/builder/main.rb

Overview

DefaultConsumer

Constant Summary collapse

On =

:stopdoc:

'on_'.freeze
Eq = 
'='.freeze
Aliases =

TODO: any other useful aliases?

{:on_click => 'actionPerformed'.freeze}

Class Method Summary collapse

Class Method Details

.consume(ctx, bld, sym, *args, &block) ⇒ Object

:startdoc:

Raises:

  • (ArgumentError) 


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# File 'lib/cheri/java/builder/main.rb', line 251

def self.consume(ctx,bld,sym,*args,&block)
  return false,nil unless (obj = bld.object).respond_to?(:java_class) &&
    ((method_name = Aliases[sym]) || (s = sym.to_s).rindex(On,0))
  method_name ||= Util.lcc(s[3,s.length])
  unless (info = Interfaces.get_listener_info(obj.java_class||obj.class.java_class,method_name))
    raise NameError,"no Java interface found matching event handler name: #{sym}"
  end
  raise ArgumentError,"missing block for event handler: #{sym}" unless block
  listener = Interfaces.get_listener_impl(info).new
  listener.__send__(method_name + Eq , block)
  obj.__send__(info.add_method_name,listener)
  return true,listener
end