Class: Wee::Renderer

Inherits:
Object show all
Defined in:
lib/wee/renderer.rb

Overview

Base class of all Renderer classes.

Direct Known Subclasses

HtmlCanvas

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(session = nil, request = nil, response = nil, callbacks = nil, document = nil, current_component = nil) ⇒ Renderer

Returns a new instance of Renderer.



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# File 'lib/wee/renderer.rb', line 14

def initialize(session=nil, request=nil, response=nil, callbacks=nil, document=nil, current_component=nil)
  @session = session
  @request = request
  @response = response
  @callbacks = callbacks
  @document = document
  @current_component = current_component
end

Instance Attribute Details

#callbacks ⇒ Object

Returns the value of attribute callbacks.



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# File 'lib/wee/renderer.rb', line 10

def callbacks
  @callbacks
end

#current_component ⇒ Object

Returns the value of attribute current_component.



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# File 'lib/wee/renderer.rb', line 12

def current_component
  @current_component
end

#document ⇒ Object

Returns the value of attribute document.



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# File 'lib/wee/renderer.rb', line 11

def document
  @document
end

#request ⇒ Object

Returns the value of attribute request.



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# File 'lib/wee/renderer.rb', line 8

def request
  @request
end

#response ⇒ Object

Returns the value of attribute response.



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# File 'lib/wee/renderer.rb', line 9

def response
  @response
end

#session ⇒ Object

Returns the value of attribute session.



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# File 'lib/wee/renderer.rb', line 7

def session
  @session
end

Instance Method Details

#close ⇒ Object

Subclass responsibility.



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# File 'lib/wee/renderer.rb', line 67

def close
end

#render(component) ⇒ Object

NOTE: unregister will do nothing for a regular request, only for an AJAX request. Only if you would render one and the same component twice it would behave differently.



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# File 'lib/wee/renderer.rb', line 50

def render(component)
  close
  self.callbacks.unregister(component)
  component.decoration.render!(self)
  nil
end

#render_decoration(decoration) ⇒ Object 



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# File 'lib/wee/renderer.rb', line 57

def render_decoration(decoration)
  close
  self.callbacks.unregister(decoration)
  decoration.render!(self)
  nil
end

#with(component) ⇒ Object 



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# File 'lib/wee/renderer.rb', line 23

def with(component)
  rclass = component.renderer_class
  if rclass == self
    # reuse renderer
    old_component = @current_component 
    begin
      @current_component = component
      yield self
    ensure
      @current_component = old_component
    end
  else
    close
    r = rclass.new(@session, @request, @response, @callbacks, @document, component)
    begin
      yield r
    ensure
      r.close
    end
  end
end