Class: XlibObj::Extension::Core::Event

Inherits:

Object

• Object
• XlibObj::Extension::Core::Event

Defined in:

lib/extension/core/event.rb

Constant Summary

MASKS =

{
  no_event:                 Xlib::NoEventMask,
  key_press:                Xlib::KeyPressMask,
  key_release:              Xlib::KeyReleaseMask,
  button_press:             Xlib::ButtonPressMask,
  button_release:           Xlib::ButtonReleaseMask,
  enter_window:             Xlib::EnterWindowMask,
  leave_window:             Xlib::LeaveWindowMask,
  pointer_motion:           Xlib::PointerMotionMask,
  pointer_motion_hint:      Xlib::PointerMotionHintMask,
  button1_motion:           Xlib::Button1MotionMask,
  button2_motion:           Xlib::Button2MotionMask,
  button3_motion:           Xlib::Button3MotionMask,
  button4_motion:           Xlib::Button4MotionMask,
  button5_motion:           Xlib::Button5MotionMask,
  button_motion:            Xlib::ButtonMotionMask,
  keymap_state:             Xlib::KeymapStateMask,
  exposure:                 Xlib::ExposureMask,
  visibility_change:        Xlib::VisibilityChangeMask,
  structure_notify:         Xlib::StructureNotifyMask,
  resize_redirect:          Xlib::ResizeRedirectMask,
  substructure_notify:      Xlib::SubstructureNotifyMask,
  substructure_redirect:    Xlib::SubstructureRedirectMask,
  focus_change:             Xlib::FocusChangeMask,
  property_change:          Xlib::PropertyChangeMask,
  colormap_change:          Xlib::ColormapChangeMask,
  owner_grab_button:        Xlib::OwnerGrabButtonMask
}

TYPES =

{
  key_press:         Xlib::KeyPress,
  key_release:       Xlib::KeyRelease,
  button_press:      Xlib::ButtonPress,
  button_release:    Xlib::ButtonRelease,
  motion_notify:     Xlib::MotionNotify,
  enter_notify:      Xlib::EnterNotify,
  leave_notify:      Xlib::LeaveNotify,
  focus_in:          Xlib::FocusIn,
  focus_out:         Xlib::FocusOut,
  keymap_notify:     Xlib::KeymapNotify,
  expose:            Xlib::Expose,
  graphics_expose:   Xlib::GraphicsExpose,
  no_expose:         Xlib::NoExpose,
  visibility_notify: Xlib::VisibilityNotify,
  create_notify:     Xlib::CreateNotify,
  destroy_notify:    Xlib::DestroyNotify,
  unmap_notify:      Xlib::UnmapNotify,
  map_notify:        Xlib::MapNotify,
  map_request:       Xlib::MapRequest,
  reparent_notify:   Xlib::ReparentNotify,
  configure_notify:  Xlib::ConfigureNotify,
  configure_request: Xlib::ConfigureRequest,
  gravity_notify:    Xlib::GravityNotify,
  resize_request:    Xlib::ResizeRequest,
  circulate_notify:  Xlib::CirculateNotify,
  circulate_request: Xlib::CirculateRequest,
  property_notify:   Xlib::PropertyNotify,
  selection_clear:   Xlib::SelectionClear,
  selection_request: Xlib::SelectionRequest,
  selection_notify:  Xlib::SelectionNotify,
  colormap_notify:   Xlib::ColormapNotify,
  client_message:    Xlib::ClientMessage,
  mapping_notify:    Xlib::MappingNotify,
  generic_event:     Xlib::GenericEvent,
  last_event:        Xlib::LASTEvent
}

TYPE_TO_UNION_MEMBER =

{
  Xlib::KeyPress         => :xkey,
  Xlib::KeyRelease       => :xkey,
  Xlib::ButtonPress      => :xbutton,
  Xlib::ButtonRelease    => :xbutton,
  Xlib::MotionNotify     => :xmotion,
  Xlib::EnterNotify      => :xcrossing,
  Xlib::LeaveNotify      => :xcrossing,
  Xlib::FocusIn          => :xfocus,
  Xlib::FocusOut         => :xfocus,
  Xlib::KeymapNotify     => :xkeymap,
  Xlib::Expose           => :xexpose,
  Xlib::GraphicsExpose   => :xgraphicsexpose,
  Xlib::NoExpose         => :xnoexpose,
  Xlib::VisibilityNotify => :xvisibility,
  Xlib::CreateNotify     => :xcreatewindow,
  Xlib::DestroyNotify    => :xdestroywindow,
  Xlib::UnmapNotify      => :xunmap,
  Xlib::MapNotify        => :xmap,
  Xlib::MapRequest       => :xmaprequest,
  Xlib::ReparentNotify   => :xreparent,
  Xlib::ConfigureNotify  => :xconfigure,
  Xlib::ConfigureRequest => :xconfigurerequest,
  Xlib::GravityNotify    => :xgravity,
  Xlib::ResizeRequest    => :xresizerequest,
  Xlib::CirculateNotify  => :xcirculate,
  Xlib::CirculateRequest => :xcirculaterequest,
  Xlib::PropertyNotify   => :xproperty,
  Xlib::SelectionClear   => :xselectionclear,
  Xlib::SelectionRequest => :xselectionrequest,
  Xlib::SelectionNotify  => :xselection,
  Xlib::ColormapNotify   => :xcolormap,
  Xlib::ClientMessage    => :xclient,
  Xlib::MappingNotify    => :xmapping,
  Xlib::GenericEvent     => :xgeneric
}

Instance Method Summary

• #handle ⇒ Object
• #initialize(extension, event) ⇒ Event constructor

  A new instance of Event.

• #method_missing(name) ⇒ Object
• #name ⇒ Object

Constructor Details

#initialize(extension, event) ⇒ Event

Returns a new instance of Event.

# File 'lib/extension/core/event.rb', line 12

def initialize(extension, event)
  @extension = extension
  @struct ||= begin
    type = event[:type]
    union_member = self.class::TYPE_TO_UNION_MEMBER[type]
    event[union_member]
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name) ⇒ Object

# File 'lib/extension/core/event.rb', line 30

def method_missing(name)
  @struct.members.include?(name) ? @struct[name] : nil
end

Instance Method Details

#handle ⇒ Object

# File 'lib/extension/core/event.rb', line 21

def handle
  window_id = window || owner || requestor
  Window.new(@extension.display, window_id).handle(self)
end

#name ⇒ Object

# File 'lib/extension/core/event.rb', line 26

def name
  TYPES.key(type)
end