Class: Glimmer::SWT::Custom::CheckboxGroup

Inherits:
Object
  • Object
show all
Includes:
UI::CustomWidget
Defined in:
lib/glimmer/swt/custom/checkbox_group.rb

Overview

A custom widget rendering a group of checkboxes generated via data-binding

Instance Attribute Summary

Attributes included from UI::CustomWidget

#body_root, #options, #parent, #parent_proxy, #swt_style, #swt_widget

Instance Method Summary collapse

Methods included from UI::CustomWidget

add_custom_widget_namespaces_for, #add_observer, after_body, #async_exec, #attribute_setter, before_body, body, #can_add_observer?, #content, current_custom_widgets, custom_widget_namespaces, def_option_attr_accessors, #disposed?, flyweight_custom_widget_classes, for, #get_attribute, #has_instance_method?, #has_style?, #initialize, keyword, #local_respond_to?, #method_missing, namespaces_for_class, #observer_registrations, option, options, #post_add_content, #post_initialize_child, reset_custom_widget_namespaces, #respond_to?, shortcut_keyword, #sync_exec, #timer_exec

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::UI::CustomWidget

Instance Method Details

#can_handle_observation_request?(observation_request) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 81

def can_handle_observation_request?(observation_request)
  checkboxes.first&.can_handle_observation_request?(observation_request) || super(observation_request)
end

#checkboxes ⇒ Object Also known as: checks 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 72

def checkboxes
  @checkboxes ||= []
end

#delegate_observation_request_to_checkboxes(observation_request, &block) ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 91

def delegate_observation_request_to_checkboxes(observation_request, &block)
  if observation_request != 'on_widget_disposed'
    checkboxes.count.times do |index|
      checkbox = checkboxes[index]
      label = labels[index]
      listener_block = lambda do |event|
        event.widget = self.swt_widget
        block.call(event)
      end
      if observation_request == 'on_widget_selected'
        checkbox.handle_observation_request(observation_request, &listener_block) if checkbox.can_handle_observation_request?(observation_request)
        label.handle_observation_request('on_mouse_up', &listener_block)
      else
        checkbox.handle_observation_request(observation_request, &listener_block) if checkbox.can_handle_observation_request?(observation_request)
        label.handle_observation_request(observation_request, &listener_block) if label.can_handle_observation_request?(observation_request)
      end
    end
  end
end

#handle_observation_request(observation_request, &block) ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 85

def handle_observation_request(observation_request, &block)
  observation_requests << [observation_request, block]
  delegate_observation_request_to_checkboxes(observation_request, &block)
  super
end

#has_attribute?(attribute_name, *args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 115

def has_attribute?(attribute_name, *args)
  (@composites.to_a + @checkboxes.to_a + @labels.to_a).map do |widget_proxy|
    return true if widget_proxy.has_attribute?(attribute_name, *args)
  end
  super
end

#items ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 41

def items
  @items || []
end

#items=(text_array) ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 35

def items=(text_array)
  selection_value = selection
  @items = Array[*text_array]
  build_checkboxes
end

#labels ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 77

def labels
  @labels ||= []
end

#observation_requests ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 111

def observation_requests
  @observation_requests ||= Set.new
end

#selection ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 55

def selection
  selection_indices.map do |selection_index|
    labels[selection_index]&.text
  end
end

#selection=(selection_texts) ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 45

def selection=(selection_texts)
  items.count.times do |index|
    checkbox = checkboxes[index]
    item = items[index]
    label_text = labels[index]&.text
    checkbox.selection = selection_texts.to_a.include?(label_text)
  end
  selection_texts
end

#selection_indices ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 66

def selection_indices
  checkboxes.each_with_index.map do |checkbox, index|
    index if checkbox.selection
  end.to_a.compact
end

#selection_indices=(indices) ⇒ Object Also known as: select 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 61

def selection_indices=(indices)
  self.selection=(indices.to_a.map {|index| items[index]})
end

#set_attribute(attribute_name, *args) ⇒ Object 



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# File 'lib/glimmer/swt/custom/checkbox_group.rb', line 122

def set_attribute(attribute_name, *args)
  excluded_attributes = ['selection']
  unless excluded_attributes.include?(attribute_name.to_s)
    (@composites.to_a + @checkboxes.to_a + @labels.to_a).each do |widget_proxy|
      widget_proxy.set_attribute(attribute_name, *args) if widget_proxy.has_attribute?(attribute_name, *args)
    end
  end
  super
end