Class: HtmlGrid::Label

Inherits:
SimpleDelegator
  • Object
show all
Includes:
Enumerable
Defined in:
lib/htmlgrid/label.rb

Instance Method Summary collapse

Constructor Details

#initialize(component, session, label_key = nil) ⇒ Label

Returns a new instance of Label.



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# File 'lib/htmlgrid/label.rb', line 46

def initialize(component, session, label_key=nil)
	@component = component
	@attributes = {}
	@session = session
	@lookandfeel = session.lookandfeel
	@label_key = label_key 
	if(@component.respond_to? :name)
		@attributes['for'] = @component.name.to_s
		@label_key ||= @component.name
	end
	if(@component.respond_to?(:data_origin) \
		 && (origin = @component.data_origin))
		@attributes.store('title', origin.to_s)
	end
	if(@session.error(@label_key) \
       || (@component.respond_to?(:name) && @session.error(@component.name)))
		@attributes["class"] = "error" 
	end
	if(@component.respond_to?(:attributes) \
		&& (id = @component.attributes['id']))
		@attributes.store('id', "label_#{id}")
	end
	super(component)
end

Instance Method Details

#each {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/htmlgrid/label.rb', line 70

def each
	yield self if(@component.respond_to?(:label?) && @component.label?)
	yield @component
end

#to_html(context) ⇒ Object 



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# File 'lib/htmlgrid/label.rb', line 74

def to_html(context)
  key   = @label_key
  label = @lookandfeel.lookup(key)
  if !label && @component.respond_to?(:name)
    key   = @component.name
    label = @lookandfeel.lookup(key)
  end
  state = @session.state
  if label && state.respond_to?(:mandatory?) && state.mandatory?(key)
    label += '*'
  end
  if label
    context.label(@attributes) { label }
  end
end