Class: Hatemile::Implementation::AccessibleEventImplementation

Inherits:
AccessibleEvent
  • Object
show all
Defined in:
lib/hatemile/implementation/accessible_event_implementation.rb

Overview

The AccessibleEventImplementation class is official implementation of AccessibleEvent interface.

Constant Summary collapse

ID_SCRIPT_EVENT_LISTENER =

The id of script element that replace the event listener methods.

'script-eventlistener'.freeze
ID_LIST_IDS_SCRIPT =

The id of script element that contains the list of elements that has inaccessible events.

'list-ids-script'.freeze
ID_FUNCTION_SCRIPT_FIX =

The id of script element that modify the events of elements.

'id-function-script-fix'.freeze
ID_SCRIPT_COMMON_FUNCTIONS =

The ID of script element that contains the common functions of scripts.

'hatemile-common-functions'.freeze

Instance Method Summary collapse

Constructor Details

#initialize(parser) ⇒ AccessibleEventImplementation

Initializes a new object that manipulate the accessibility of the Javascript events of elements of parser.

Parameters:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 181

def initialize(parser)
  Hatemile::Helper.require_not_nil(parser)
  Hatemile::Helper.require_valid_type(
    parser,
    Hatemile::Util::Html::HTMLDOMParser
  )

  @parser = parser
  @id_generator = Hatemile::Util::IDGenerator.new('event')
  @main_script_added = false
  @script_list = nil
end

Instance Method Details

#make_accessible_all_click_events ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 266

def make_accessible_all_click_events
  elements = @parser.find(
    '[onclick],[onmousedown],[onmouseup],[ondblclick]'
  ).list_results
  elements.each do |element|
    if Hatemile::Util::CommonFunctions.is_valid_element?(element)
      make_accessible_click_events(element)
    end
  end
end

#make_accessible_all_drag_and_drop_events ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 214

def make_accessible_all_drag_and_drop_events
  draggable_elements = @parser.find(
    '[ondrag],[ondragstart],[ondragend]'
  ).list_results
  draggable_elements.each do |draggable_element|
    next unless Hatemile::Util::CommonFunctions.is_valid_element?(
      draggable_element
    )

    make_accessible_drag_events(draggable_element)
  end
  droppable_elements = @parser.find(
    '[ondrop],[ondragenter],[ondragleave],[ondragover]'
  ).list_results
  droppable_elements.each do |droppable_element|
    next unless Hatemile::Util::CommonFunctions.is_valid_element?(
      droppable_element
    )

    make_accessible_drop_events(droppable_element)
  end
end

#make_accessible_all_hover_events ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 247

def make_accessible_all_hover_events
  elements = @parser.find('[onmouseover],[onmouseout]').list_results
  elements.each do |element|
    if Hatemile::Util::CommonFunctions.is_valid_element?(element)
      make_accessible_hover_events(element)
    end
  end
end

#make_accessible_click_events(element) ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 258

def make_accessible_click_events(element)
  keyboard_access(element)

  add_event_in_element(element, 'active')
end

#make_accessible_drag_events(element) ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 204

def make_accessible_drag_events(element)
  keyboard_access(element)

  element.set_attribute('aria-grabbed', 'false')

  add_event_in_element(element, 'drag')
end

#make_accessible_drop_events(element) ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 196

def make_accessible_drop_events(element)
  element.set_attribute('aria-dropeffect', 'none')

  add_event_in_element(element, 'drop')
end

#make_accessible_hover_events(element) ⇒ Object

See Also:



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# File 'lib/hatemile/implementation/accessible_event_implementation.rb', line 239

def make_accessible_hover_events(element)
  keyboard_access(element)

  add_event_in_element(element, 'hover')
end