Class: SWS::MultipleSelectionList

Inherits:
ListElement show all
Defined in:
lib/sws/component.rb

Overview

Base class for lists with multiple selections allowed: CheckBoxList and Select

Direct Known Subclasses

CheckBoxList, Select

Instance Attribute Summary

Attributes inherited from Component

#action_components, #definition_component, #encoding, #html_attrs, #method_to_call, #name, #parameters, #parent, #request, #request_number, #slots, #subcomponents, #tokens

Instance Method Summary collapse

Methods inherited from ListElement

#append_to_response, #item, #list

Methods inherited from FormElement

#container?, #element_name

Methods inherited from Component

#api_filename, #app, #append_to_response, #awake, #container?, #content?, create, #create_component_tree, #definition_filename, #initialize, #page, #perform_action, #process_parameters, #process_request, #remove_subcomponents, #session, #set_request_subcomponents, #sleep, #slot_bound?, #subcomponent_for_name, synchronize_slot, #synchronize_slot?, #synchronize_slots, #template_filename, #tokenize_binding, #update_binding, #url_string

Constructor Details

This class inherits a constructor from SWS::Component

Instance Method Details

#process_bindings ⇒ Object

#if ( selections == nil ) #nothing is selected - return empty array #@slots.value = Array.new() #else #WARNING: selections will be an Array if multiple and a single object if not selected = Array.new() #if we have single selection, make it an Array selections = [selections] unless ( selections.is_a? (Array) ) #in the selections array we have indices of elements in “list” array selections.each { |sel| selected << list } @slots.value = selected end end



645
646
647
648
649
650
651
 
# File 'lib/sws/component.rb', line 645

def process_bindings ()
	if ( @parameters["selections"] )
		self.selections = @parameters["selections"]
	else
		self.selections = nil
	end
end

#selections ⇒ Object

Returns value of “selections” slot or empty Array instead of nil



601
602
603
604
 
# File 'lib/sws/component.rb', line 601

def selections ()
	@selections ||= (@slots["selections"].value() || Array.new )
	return @selections
end

#selections=(selections) ⇒ Object

Sets the value of the “selections” slot



608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
 
# File 'lib/sws/component.rb', line 608

def selections= ( selections )
	
	if ( selections == nil ) 
		
		@slots["selections"].value = []
		
	elsif ( selections.is_a?( Array ) )
		
		#in the selections array we have indices of elements in "list" array
		selected = selections.collect { |sel| list[sel.to_i] }
		@slots["selections"].value = selected
		
	else #single value - create an Array containing it
		
		if ( selections == "__empty_string" )
			@slots["selections"].value = nil
		else
			@slots["selections"].value = [ list[selections.to_i] ]
		end
		
	end
	
end