class for templates

[PragTob]

Right now I do not know of a way to make templates happen in the class style, i.e. what I'd like is:

class MyTemplate < Wingtips::Slide #or Template if we need a new class
  def initialize(my_value)
    @value = my_value
  end

  def content
    # use the value to make beautiful things
  end
end

# in config.rb

slides MyTemplate.new 'lalala'

I tried it out shortly, problem is that the initialize of Slide has to get handed an app. I solved a similar problem once through introducing an iniitialize_data hook that gets called, however then people have to overwrite that, not initialize which is slightly odd. However, better than by force trying to make initialize work.

[jasonrclark]

Yeah, since the instance creation for the slide happens in Wingtips::Presentation, that kind of hampers subclasses from doing anything interesting.

I don't typically like type checks, but would this be a case where Wingtips::Presentation should check whether it's been handed a class or not, and only instantiate when it gets a class? Wingtips::Slide could expose an app= that gets called alternatively if you put an instance into the slides list.

I can think of a few other hackier ways to slice it, but that seems the simplest and clearest to me.