HelloListSingleSelection Glimmer Example

hello_list_single_selection.rb

require "glimmer"

class Person 
  attr_accessor :country, :country_options
  
  def initialize
    self.country_options=["", "Canada", "US", "Mexico"]
    self.country = "Canada"
  end
  
  def reset_country
    self.country = "Canada"
  end  
end

class HelloListSingleSelection
  include Glimmer
  def launch
    person = Person.new
    shell {
      composite {
        list {
          selection bind(person, :country)
        }
        button {
          text "Reset"
          on_widget_selected do
            person.reset_country
          end
        }        
      }
    }.open
  end
end

HelloListSingleSelection.new.launch