Class: Wee::Brush::SelectListTag

Inherits:
GenericTagBrush show all
Defined in:
lib/wee/renderer/html/brushes.rb

Defined Under Namespace

Classes: SelectListCallback

Instance Attribute Summary

Attributes inherited from Wee::Brush

#canvas, #parent

Instance Method Summary collapse

Methods inherited from GenericTagBrush

#__action_callback, #__actionurl_callback, #__actionurl_named_callback, #__input_callback, #css_class, #css_class_for, #method_missing, #onclick_callback, #onclick_update

Methods inherited from Wee::Brush

#close

Constructor Details

#initialize(items) ⇒ SelectListTag

Returns a new instance of SelectListTag.



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# File 'lib/wee/renderer/html/brushes.rb', line 335

def initialize(items)
  super('select')
  @items = items
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Wee::Brush::GenericTagBrush

Instance Method Details

#callback(symbol = nil, *args, &block) ⇒ Object 



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# File 'lib/wee/renderer/html/brushes.rb', line 362

def callback(symbol=nil, *args, &block)
  @callback = to_callback(symbol, args, block)
  self
end

#items(arg) ⇒ Object 



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# File 'lib/wee/renderer/html/brushes.rb', line 340

def items(arg)
  @items = arg
  self
end

#labels(arg = nil, &block) ⇒ Object 



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# File 'lib/wee/renderer/html/brushes.rb', line 351

def labels(arg=nil, &block)
  raise if arg and block

  if block
    @labels = proc{|i| block.call(@items[i])}
  else
    @labels = arg
  end
  self
end

#selected(arg = nil, &block) ⇒ Object 



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# File 'lib/wee/renderer/html/brushes.rb', line 345

def selected(arg=nil, &block)
  raise if arg and block
  @selected = arg || block
  self
end

#with ⇒ Object 



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# File 'lib/wee/renderer/html/brushes.rb', line 385

def with
  @labels ||= @items.collect { |i| i.to_s }

  is_multiple = @attributes.has_key?('multiple')

  if @callback
    # A callback was specified. We have to wrap it inside a
    # SelectListCallback object as we want to perform some 
    # additional actions.
    __input_callback(SelectListCallback.new(@callback, @items, is_multiple))
  end

  super do
    meth = 
    if is_multiple 
      @selected ||= Array.new
      @selected.kind_of?(Proc) ? (:call) : (:include?)
    else
      @selected.kind_of?(Proc) ? (:call) : (:==)
    end

    @items.each_index {|i|
      @canvas.option.value(i).selected(@selected.send(meth, @items[i])).with(@labels[i])
    }
  end
end