Method: VMAgui#reset_controllers

Defined in:
lib/vimamsa/gui.rb

#reset_controllers ⇒ Object

Remove widget event controllers added by gtk, and add our own.



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# File 'lib/vimamsa/gui.rb', line 456

def reset_controllers
  clist = @window.observe_controllers
  to_remove = []
  (0..(clist.n_items - 1)).each { |x|
    ctr = clist.get_item(x)
    if ctr.class == Gtk::EventControllerKey
      to_remove << ctr
    end
  }
  if to_remove.size > 0
    # debug "Removing controllers:"
    # pp to_remove
    to_remove.each { |x| @window.remove_controller(x) }
  end

  press = Gtk::EventControllerKey.new
  @press = press
  # to prevent SourceView key handler capturing any keypresses
  press.set_propagation_phase(Gtk::PropagationPhase::CAPTURE)
  @window.add_controller(press)

  press.signal_connect "key-pressed" do |gesture, keyval, keycode, y|
    name = Gdk::Keyval.to_name(keyval)
    uki = Gdk::Keyval.to_unicode(keyval)
    keystr = uki.chr("UTF-8")
    debug "key pressed #{keyval} #{keycode} name:#{name} str:#{keystr} unicode:#{uki}"
    buf.view.handle_key_event(keyval, keystr, :key_press)
    true
  end

  press.signal_connect "modifiers" do |eventctr, modtype|
    # eventctr: Gtk::EventControllerKey
    # modtype: Gdk::ModifierType
    debug "modifier change"
    vma.kbd.modifiers[:ctrl] = modtype.control_mask?
    vma.kbd.modifiers[:alt] = modtype.alt_mask?
    vma.kbd.modifiers[:hyper] = modtype.hyper_mask?
    vma.kbd.modifiers[:lock] = modtype.lock_mask?
    vma.kbd.modifiers[:meta] = modtype.meta_mask?
    vma.kbd.modifiers[:shift] = modtype.shift_mask?
    vma.kbd.modifiers[:super] = modtype.super_mask?

    #TODO:?
    # button1_mask?
    # ...
    # button5_mask?
    true # = handled, do not propagate further
  end

  press.signal_connect "key-released" do |gesture, keyval, keycode, y|
    name = Gdk::Keyval.to_name(keyval)
    uki = Gdk::Keyval.to_unicode(keyval)
    keystr = uki.chr("UTF-8")
    debug "key released #{keyval} #{keycode} name:#{name} str:#{keystr} unicode:#{uki}"
    buf.view.handle_key_event(keyval, keystr, :key_release)
    true # = handled, do not propagate further
  end
end