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 48

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 73

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 78

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