Class: Glimmer::SWT::MenuItemProxy

Inherits:
WidgetProxy show all
Defined in:
lib/glimmer/swt/menu_item_proxy.rb

Overview

Proxy for org.eclipse.swt.widgets.MenuItem

Follows the Proxy Design Pattern since it’s a proxy for an HTML based menu Follows the Adapter Design Pattern since it’s adapting a Glimmer DSL for SWT widget

Constant Summary collapse

STYLE = 
<<~CSS
  .menu-item.disabled {
    background-color: lightgrey;
    color: grey;
  }
  .menu-item.disabled .menu, .menu-item.disabled .menu * {
    display: none;
    opacity: 0;
  }
CSS

Constants inherited from WidgetProxy

WidgetProxy::DEFAULT_INITIALIZERS, WidgetProxy::JS_KEY_CODE_TO_SWT_KEY_CODE_MAP, WidgetProxy::JS_LOCATION_TO_SWT_KEY_LOCATION_MAP, WidgetProxy::SWT_CURSOR_TO_CSS_CURSOR_MAP

Instance Attribute Summary collapse

Attributes inherited from WidgetProxy

#args, #background, #children, #cursor, #disposed?, #enabled, #focus, #font, #foreground, #menu, #menu_requested, #menu_x, #menu_y, #parent, #path, #rendered

Instance Method Summary collapse

Methods inherited from WidgetProxy

#add_content_on_render, #add_css_class, #add_css_classes, #add_observer, #apply_property_type_converters, #attach, #build_dom, #can_handle_observation_request?, #clear_css_classes, #content, #content_on_render_blocks, #css_classes, #default_observation_request_to_event_mapping, #dialog_ancestor, #dispose, #dom_element, #effective_observation_request_to_event_mapping, #event_handling_suspended?, #event_listener_proxies, for, #get_data, #handle_javascript_observation_request, #handle_observation_request, #has_style?, #id, #id=, #listener_dom_element, #listener_path, #listeners, #listeners_for, max_id_number_for, max_id_numbers, #method_missing, #name, next_id_number_for, #observation_requests, #parent_dom_element, #parent_path, #parents, #post_add_content, #post_dispose_child, #print, #property_type_converters, #reattach, #remove_all_listeners, #remove_css_class, #remove_css_classes, #remove_event_listener_proxies, #render, reset_max_id_numbers!, #resume_event_handling, #selector, #set_attribute, #set_data, #set_focus, #shell, #style_element, #suspend_event_handling, #swt_data, #swt_widget, underscored_widget_name, widget_class, widget_exists?, widget_handling_listener, #widget_property_listener_installers

Methods included from PropertyOwner

#attribute_getter, #attribute_setter, #get_attribute, #set_attribute

Constructor Details

#initialize(parent, args, block) ⇒ MenuItemProxy

Returns a new instance of MenuItemProxy.



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 46

def initialize(parent, args, block)
  args.push(:push) if args.empty?
  super(parent, args, block)
  # TODO do not add the following event till post_add_content to avoid adding if already one on_widget_selected event existed
  on_widget_selected {
    # No Op, just trigger selection
  }
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::SWT::WidgetProxy

Instance Attribute Details

#accelerator ⇒ Object

TODO consider doing something with it



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 44

def accelerator
  @accelerator
end

Instance Method Details

#cascade? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 59

def cascade?
  args.include?(:cascade)
end

#check? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 71

def check?
  args.include?(:check)
end

#div_content ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 110

def div_content
  div_attributes = {}
  icon_suffix = check? ? 'check' : 'bullet'
  div(div_attributes) {
    unless separator? # empty content automatically gets a separator style in jQuery-UI
      span(class: "menu-item-selection #{"ui-icon ui-icon-#{icon_suffix}" if selection}") {}
      span(class: 'ui-menu-icon ui-icon ui-icon-caret-1-e') {} if cascade? && !parent.bar?
      span(class: 'menu-item-text') {
        @text
      }
      ''
    end
  }
end

#dom ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 164

def dom
  # TODO support rendering image
  @dom ||= html {
    li(id: id, class: "#{name} #{'disabled' unless enabled}") {
      div_content
    }
  }.to_s
end

#element ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 160

def element
  'li'
end

#enabled=(value) ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 104

def enabled=(value)
  @enabled = value
  dom_element.toggle_class('disabled', !@enabled)
  @enabled
end

#observation_request_to_event_mapping ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 135

def observation_request_to_event_mapping
  {
    'on_widget_selected' => {
      event: 'mouseup',
      event_handler: -> (event_listener) {
        -> (event) {
          if enabled && (push? || radio? || check?)
            if check?
              self.toggle_selection!
            elsif radio? && !selection
              parent.children.detect(&:selection)&.selection = false
              self.selection = true
            end
            if !root_menu.bar?
              remove_event_listener_proxies
              root_menu.close
            end
            event_listener.call(event)
          end
        }
      },
    },
  }
end

#post_initialize_child(child) ⇒ Object 



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

def post_initialize_child(child)
  @children << child
end

#push? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 63

def push?
  args.include?(:push)
end

#radio? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 67

def radio?
  args.include?(:radio)
end

#root_menu ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 125

def root_menu
  the_menu = parent
  the_menu = the_menu.parent_menu until the_menu.root_menu?
  the_menu
end

#selection ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 89

def selection
  @selection
end

#selection=(value) ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 93

def selection=(value)
  @selection = value
  icon_suffix = check? ? 'check' : 'bullet'
  dom_element.find('.menu-item-selection').toggle_class("ui-icon ui-icon-#{icon_suffix}", @selection)
  @selection
end

#separator? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 75

def separator?
  args.include?(:separator)
end

#skip_content_on_render_blocks? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 131

def skip_content_on_render_blocks?
  true
end

#text ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 79

def text
  @text
end

#text=(value) ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 83

def text=(value)
  @text = value
  dom_element.find('.menu-item-text').html(@text)
  @text
end

#toggle_selection! ⇒ Object 



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# File 'lib/glimmer/swt/menu_item_proxy.rb', line 100

def toggle_selection!
  self.selection = !selection
end