require File.dirname(__FILE__)+'/mixins/erubis_capture_mixin'
require File.dirname(__FILE__)+'/mixins/javascript_mixin'

module Merb
  
  # the ViewContext is really
  # just an empty container for us to fill with instance 
  # variables from the controller, include helpers into
  # and then use as the context object passed to Erubis
  # when evaluating the templates.
  class ViewContext
    include Merb::ErubisCaptureMixin
    include Merb::JavascriptMixin
    
    def initialize(controller)
      @controller = controller
      (@controller.instance_variables - %w[@cookies @session @headers @params 
                 @env @in @status @root @method @request @fingerprint_before
                  @controller @k]).each do |ivar|
        self.instance_variable_set(ivar, @controller.instance_variable_get(ivar))
      end
      begin
        self.class.class_eval("include Merb::#{@controller.class.name}Helper")
      rescue NameError
        MERB_LOGGER.info("Missing Helper: Merb::#{@controller.class.name}Helper")
      end  
    end
    
    # accessor for the view. refers to the current @controller object
    def controller
      @controller
    end  
    
    # catch any method calls that the controller responds to
    # and delegate them back to the controller.
    def method_missing(sym, *args, &blk)
      if @controller.respond_to? sym
        @controller.send(sym, *args, &blk)
      else
        super
      end    
    end
    
  end
  
end