/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; coding: utf-8 -*-
 * test-completion.c
 * This file is part of GtkSourceView
 *
 * Copyright (C) 2007 - Jesús Barbero Rodríguez <chuchiperriman@gmail.com>
 *
 * GtkSourceView is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * GtkSourceView is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <config.h>

#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gtksourceview/gtksourceview.h>
#include <gtksourceview/gtksourcecompletion.h>
#include <gtksourceview/gtksourcecompletioninfo.h>
#include <gtksourceview/gtksourcecompletionitem.h>
#include <gtksourceview/gtksourcelanguagemanager.h>
#include <gtksourceview/completion-providers/words/gtksourcecompletionwords.h>

static GtkWidget *view;
static GtkSourceCompletion *comp;

static const gboolean change_keys = FALSE;

typedef struct _TestProvider TestProvider;
typedef struct _TestProviderClass TestProviderClass;

struct _TestProvider
{
	GObject parent;

	GList *proposals;
	gint priority;
	gchar *name;

	GdkPixbuf *icon;
};

struct _TestProviderClass
{
	GObjectClass parent_class;
};

static void test_provider_iface_init (GtkSourceCompletionProviderIface *iface);
GType test_provider_get_type (void);

G_DEFINE_TYPE_WITH_CODE (TestProvider,
			 test_provider,
			 G_TYPE_OBJECT,
			 G_IMPLEMENT_INTERFACE (GTK_SOURCE_TYPE_COMPLETION_PROVIDER,
				 		test_provider_iface_init))

static gchar *
test_provider_get_name (GtkSourceCompletionProvider *provider)
{
	return g_strdup (((TestProvider *)provider)->name);
}

static gint
test_provider_get_priority (GtkSourceCompletionProvider *provider)
{
	return ((TestProvider *)provider)->priority;
}

static gboolean
test_provider_match (GtkSourceCompletionProvider *provider,
                     GtkSourceCompletionContext  *context)
{
	return TRUE;
}

static void
test_provider_populate (GtkSourceCompletionProvider *provider,
                        GtkSourceCompletionContext  *context)
{
	gtk_source_completion_context_add_proposals (context,
	                                             provider,
	                                             ((TestProvider *)provider)->proposals,
	                                             TRUE);
}

static GdkPixbuf *
test_provider_get_icon (GtkSourceCompletionProvider *provider)
{
	TestProvider *tp = (TestProvider *)provider;

	if (tp->icon == NULL)
	{
		GtkIconTheme *theme = gtk_icon_theme_get_default ();
		tp->icon = gtk_icon_theme_load_icon (theme, GTK_STOCK_DIALOG_INFO, 16, 0, NULL);
	}

	return tp->icon;
}

static void
test_provider_iface_init (GtkSourceCompletionProviderIface *iface)
{
	iface->get_name = test_provider_get_name;

	iface->populate = test_provider_populate;
	iface->match = test_provider_match;
	iface->get_priority = test_provider_get_priority;

	//iface->get_icon = test_provider_get_icon;
}

static void
test_provider_class_init (TestProviderClass *klass)
{
}

static void 
test_provider_init (TestProvider *self)
{
	GList *proposals = NULL;
	GdkPixbuf *icon = test_provider_get_icon (GTK_SOURCE_COMPLETION_PROVIDER (self));

	proposals = g_list_prepend (proposals,
	                            gtk_source_completion_item_new ("Proposal 3", "Proposal 3", icon, "This is the third proposal... \nit is so cool it takes two lines to describe"));

	proposals = g_list_prepend (proposals,
	                            gtk_source_completion_item_new ("Proposal 2", "Proposal 2", icon, "This is the second proposal... it is very appealing..."));

	proposals = g_list_prepend (proposals,
	                            gtk_source_completion_item_new ("Proposal 1", "Proposal 1", icon, NULL));

	self->proposals = proposals;
}

static void
destroy_cb (GtkWidget *object,
	    gpointer   user_data)
{
	gtk_main_quit ();
}

static void
remember_toggled_cb (GtkToggleButton *button,
		     gpointer user_data)
{
	g_object_set (comp, "remember-info-visibility",
		      gtk_toggle_button_get_active (button),
		      NULL);
}

static void
select_on_show_toggled_cb (GtkToggleButton *button,
			   gpointer user_data)
{
	g_object_set (comp, "select-on-show",
		      gtk_toggle_button_get_active (button),
		      NULL);
}

static void
show_headers_toggled_cb (GtkToggleButton *button,
			 gpointer user_data)
{
	g_object_set (comp, "show-headers",
		      gtk_toggle_button_get_active (button),
		      NULL);
}

static void
toggle_active_property (gpointer     source,
                        gpointer     dest,
                        const gchar *name)
{
	gboolean value;
	
	g_object_get (source, name, &value, NULL);
	g_object_set (dest, "active", value, NULL);
}

static void
show_icons_toggled_cb (GtkToggleButton *button,
		       gpointer user_data)
{
	g_object_set (comp, "show-icons",
		      gtk_toggle_button_get_active (button),
		      NULL);
}


static GtkWidget*
create_window (void)
{
	GtkWidget *window;
	GtkWidget *vbox;
	GtkWidget *hbox;
	GtkWidget *remember;
	GtkWidget *select_on_show;
	GtkWidget *show_headers;
	GtkWidget *show_icons;
	GtkSourceCompletion *completion;
		
	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_resize (GTK_WINDOW (window), 600, 400);
	
	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 1);
	hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 1);
	
	view = gtk_source_view_new ();
	GtkWidget *scroll = gtk_scrolled_window_new (NULL, NULL);
	gtk_container_add (GTK_CONTAINER (scroll), view);
	
	remember = gtk_check_button_new_with_label ("Remember info visibility");
	select_on_show = gtk_check_button_new_with_label ("Select first on show");
	show_headers = gtk_check_button_new_with_label ("Show headers");
	show_icons = gtk_check_button_new_with_label ("Show icons");
	
	completion = gtk_source_view_get_completion (GTK_SOURCE_VIEW (view));
	
	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");
	
	gtk_box_pack_start (GTK_BOX (hbox), remember, FALSE, FALSE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), select_on_show, FALSE, FALSE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), show_headers, FALSE, FALSE, 0);
	gtk_box_pack_start (GTK_BOX (hbox), show_icons, FALSE, FALSE, 0);
	
	gtk_box_pack_start (GTK_BOX (vbox), scroll, TRUE, TRUE, 0);
	gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
	
	gtk_container_add (GTK_CONTAINER (window), vbox);
	
	g_signal_connect (window, "destroy",
			  G_CALLBACK (destroy_cb),
			   NULL);
	g_signal_connect (remember, "toggled",
			  G_CALLBACK (remember_toggled_cb),
			  NULL);
	g_signal_connect (select_on_show, "toggled",
			  G_CALLBACK (select_on_show_toggled_cb),
			  NULL);
	g_signal_connect (show_headers, "toggled",
			  G_CALLBACK (show_headers_toggled_cb),
			  NULL);
	g_signal_connect (show_icons, "toggled",
			  G_CALLBACK (show_icons_toggled_cb),
			  NULL);

	return window;
}

static void
create_completion(void)
{
	GtkSourceCompletionWords *prov_words;
	
	comp = gtk_source_view_get_completion (GTK_SOURCE_VIEW (view));
	prov_words = gtk_source_completion_words_new (NULL, NULL);
	
	gtk_source_completion_words_register (prov_words,
	                                      gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
	
	gtk_source_completion_add_provider (comp, 
	                                    GTK_SOURCE_COMPLETION_PROVIDER (prov_words), 
	                                    NULL);

	g_object_set (prov_words, "priority", 10, NULL);

	TestProvider *tp = g_object_new (test_provider_get_type (), NULL);
	tp->priority = 1;
	tp->name = "Test Provider 1";

	gtk_source_completion_add_provider (comp,
	                                    GTK_SOURCE_COMPLETION_PROVIDER (tp),
	                                    NULL);

	tp = g_object_new (test_provider_get_type (), NULL);
	tp->priority = 5;
	tp->name = "Test Provider 5";

	gtk_source_completion_add_provider (comp,
	                                    GTK_SOURCE_COMPLETION_PROVIDER (tp),
	                                    NULL);
}

int
main (int argc, char *argv[])
{
	GtkWidget *window;

	gtk_init (&argc, &argv);

	window = create_window ();
	create_completion ();

	gtk_widget_show_all (window);

	gtk_main ();
	return 0;
}
