class TestProvider : Gtk.SourceCompletionProvider, Object
{
  Gdk.Pixbuf icon;
  public string name;
  public int priority;
  List<Gtk.SourceCompletionItem> proposals;

  construct
  {
	  Gdk.Pixbuf icon = this.get_icon ();

    this.proposals = new List<Gtk.SourceCompletionItem> ();
	  this.proposals.prepend (new Gtk.SourceCompletionItem ("Proposal 3", "Proposal 3", null, null));
	  this.proposals.prepend (new Gtk.SourceCompletionItem ("Proposal 2", "Proposal 2", null, null));
	  this.proposals.prepend (new Gtk.SourceCompletionItem ("Proposal 1", "Proposal 1", null, null));
  }

  public unowned string get_name ()
  {
	  return this.name;
  }

  public int get_priority ()
  {
	  return this.priority;
  }

  public bool match (Gtk.SourceCompletionContext context)
  {
	  return true;
  }

  public void populate (Gtk.SourceCompletionContext context)
  {
	  context.add_proposals (this, this.proposals, true);
  }

  public unowned Gdk.Pixbuf get_icon ()
  {
	  if (this.icon == null)
	  {
		  Gtk.IconTheme theme = Gtk.IconTheme.get_default ();
		  this.icon = theme.load_icon (Gtk.STOCK_DIALOG_INFO, 16, 0);
	  }
  	return this.icon;
  }

  public bool activate_proposal (Gtk.SourceCompletionProposal proposal,
                                 Gtk.TextIter iter)
  {
    return true;
  }

  public Gtk.SourceCompletionActivation get_activation ()
  {
    return Gtk.SourceCompletionActivation.INTERACTIVE |
	          Gtk.SourceCompletionActivation.USER_REQUESTED;
  }

  public unowned Gtk.Widget get_info_widget (Gtk.SourceCompletionProposal proposal)
  {
    return null;
  }

  public int get_interactive_delay ()
  {
    return -1;
  }

  public bool get_start_iter (Gtk.SourceCompletionContext context,
                              Gtk.SourceCompletionProposal proposal,
                              Gtk.TextIter iter)
  {
    return false;
  }

  public void update_info (Gtk.SourceCompletionProposal proposal, 
                           Gtk.SourceCompletionInfo info)
  {
  }
}

Gtk.SourceView view;
Gtk.SourceCompletion comp;

void destroy_cb (Gtk.Object object)
{
	Gtk.main_quit ();
}

void remember_toggled_cb (Gtk.ToggleButton button)
{
	comp.remember_info_visibility = button.get_active ();
}

void select_on_show_toggled_cb (Gtk.ToggleButton button)
{
	comp.select_on_show = button.get_active ();
}

void show_headers_toggled_cb (Gtk.ToggleButton button)
{
	comp.show_headers = button.get_active ();
}

void toggle_active_property (Object source,
                             Object dest,
                             string name)
{
	bool val;
	
	source.get (name, out val);
	dest.set ("active", val);
}

void show_icons_toggled_cb (Gtk.ToggleButton button)
{
	comp.show_icons = button.get_active ();
}

Gtk.Window create_window ()
{
	Gtk.Window window;
	Gtk.VBox vbox;
	Gtk.HBox hbox;
	Gtk.CheckButton remember;
	Gtk.CheckButton select_on_show;
	Gtk.CheckButton show_headers;
	Gtk.CheckButton show_icons;
	Gtk.SourceCompletion completion;

	window = new Gtk.Window ();
	window.resize (600, 400);

	vbox = new Gtk.VBox (false, 1);
	hbox = new Gtk.HBox (false, 1);

	view = new Gtk.SourceView ();
	Gtk.ScrolledWindow scroll = new Gtk.ScrolledWindow (null, null);
	scroll.add (view);

	remember = new Gtk.CheckButton.with_label ("Remember info visibility");
	select_on_show = new Gtk.CheckButton.with_label ("Select first on show");
	show_headers = new Gtk.CheckButton.with_label ("Show headers");
	show_icons = new Gtk.CheckButton.with_label ("Show icons");

	completion = view.get_completion ();

	toggle_active_property (completion, remember, "remember-info-visibility");
	toggle_active_property (completion, select_on_show, "select-on-show");
	toggle_active_property (completion, show_headers, "show-headers");
	toggle_active_property (completion, show_icons, "show-icons");

	hbox.pack_start (remember, false, false, 0);
	hbox.pack_start (select_on_show, false, false, 0);
	hbox.pack_start (show_headers, false, false, 0);
	hbox.pack_start (show_icons, false, false, 0);
	
	vbox.pack_start (scroll, true, true, 0);
	vbox.pack_end (hbox, false, false, 0);
	
	window.add (vbox);
	
	window.destroy.connect (destroy_cb);
	remember.toggled.connect (remember_toggled_cb);
	select_on_show.toggled.connect (select_on_show_toggled_cb);
	show_headers.toggled.connect (show_headers_toggled_cb);
	show_icons.toggled.connect (show_icons_toggled_cb);

	return window;
}

void create_completion ()
{
	//Gtk.SourceCompletionWords prov_words;

	comp = view.get_completion ();
	/*prov_words = new Gtk.SourceCompletionWords (null, null);

	prov_words.register (view.get_buffer ());

	comp.add_provider (prov_words);

	prov_words.priority = 10;*/

	TestProvider tp = new TestProvider ();
	tp.priority = 1;
	tp.name = "Test Provider 1";

	comp.add_provider (tp);

	tp = new TestProvider ();
	tp.priority = 5;
	tp.name = "Test Provider 5";

	comp.add_provider (tp);
}

void main (string[] args)
{
  Gtk.Window window;

  Gtk.init (ref args);

  window = create_window ();
  create_completion ();

  window.show_all ();

  Gtk.main ();
}