OpalVM.bridged_class `$.Event.prototype`, 'Event'

class Event

  # Returns the actual element that initiated the event.
  #
  # @return [Element]
  def target
    `return $(self.target);`
  end
  # Returns the current target for the event.
  #
  def current
    `return $(self.currentTarget);`
  end

  # The type of event that occured.
  #
  # FIXME: for now, these are the raw javascript/jquery names for the events
  # and are not snake_cased. This needs to be fixed.
  def type
    `return self.type;`
  end

  # If {#prevent_default} has been called on the event, returns `true`, 
  # otherwise returns `false`. 
  #
  # @example
  #
  #     Element['div'].mouse_down do |event|
  #       event.default_prevented?      # => false
  #       event.prevent_default
  #       event.default_prevented?      # => true
  #     end
  #
  # @return [true, false]
  def default_prevented?
    `return self.isDefaultPrevented() ? Qtrue : Qfalse;`
  end

  # Use this method to stop the default action of the event. For example, this 
  # can be used to stop browsers following a href links on a page.
  #
  # @return [Event] returns the receiver
  def prevent_default
    `self.preventDefault()`
    self
  end

  # Returns `true` if the alt key was pressed during the event, `false` 
  # otherwise.
  #
  # @return [true, false]
  def alt?
    `return self.altKey ? Qtrue : Qfalse;`
  end

  # Returns `true` if the ctrl key was pressed during the event, `false`
  # otherwise.
  #
  # @return [true, false]
  def ctrl?
    `return self.ctrlKey ? Qtrue : Qfalse;`
  end

  # Returns `true` if the shift key was pressed during the event, `false`
  # otherwise.
  #
  # @return [true, false]
  def shift?
    `return self.shiftKey ? Qtrue : Qfalse;`
  end

  # Returns `true` if the meta key was pressed during the event, `false`
  # otherwise.
  #
  # @return [true, false]
  def meta?
    `return self.metaKey ? Qtrue : Qfalse;`
  end

  # Stops the event from propagating up the DOM tree so that parent elements
  # will not receive the event.
  #
  # @return [Event] returns the receiver.
  def stop_propagation
    `self.stopPropagation()`
    self
  end

  # Returns `true` if {#stop_propagation} was called on the receiver, `false`
  # otherwise.
  #
  # @example
  #
  #     Element['div'].mouse_down do |evt|
  #       evt.propagation_stopped?      # => false
  #       evt.stop_propagation
  #       evt.propagation_stopped?      # => true
  #     end
  #
  # @return [true, false]
  def propagation_stopped?
    `return self.isPropagationStopped() ? Qtrue : Qfalse;`
  end
end