/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*  This file is part of the GtkHTML library.

    Copyright (C) 2000 Jonas Borgström <jonas_b@bitsmart.com>.

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.
*/

#include <config.h>
#include <gtk/gtkbutton.h>
#include <gtk/gtksignal.h>
#include "htmlbutton.h"
#include "htmlform.h"
#include <string.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <gal/widgets/e-unicode.h>

HTMLButtonClass html_button_class;

static HTMLEmbeddedClass *parent_class = NULL;


static void
clicked_event (GtkWidget *widget, gpointer data)
{
	HTMLButton *b = HTML_BUTTON (data);
	HTMLEmbedded *e = HTML_EMBEDDED (data);

	switch (b->type) {
	case BUTTON_SUBMIT:
		b->successful = TRUE;
		html_form_submit (HTML_FORM (e->form));
		b->successful = FALSE;
		break;

	case BUTTON_RESET:
		html_form_reset (HTML_FORM (e->form));
		break;
	default:
		return;
	}
}


static void
copy (HTMLObject *self,
      HTMLObject *dest)
{
	(* HTML_OBJECT_CLASS (parent_class)->copy) (self, dest);

	HTML_BUTTON (dest)->type = HTML_BUTTON (self)->type;
}


static gchar * 
encode (HTMLEmbedded *e)
{
	GString *encoding = g_string_new ("");
	gchar *ptr;

	if(strlen (e->name) && (HTML_BUTTON(e)->successful)) {
		ptr = html_embedded_encode_string (e->name);
		encoding = g_string_append (encoding, ptr);
		g_free (ptr);

		encoding = g_string_append_c (encoding, '=');

		ptr = html_embedded_encode_string (e->value);
		encoding = g_string_append (encoding, ptr);
		g_free (ptr);		
	}

	ptr = encoding->str;
	g_string_free(encoding, FALSE);
	
	return ptr;
}


void
html_button_type_init (void)
{
	html_button_class_init (&html_button_class, HTML_TYPE_BUTTON, sizeof (HTMLButton));
}

void
html_button_class_init (HTMLButtonClass *klass,
			HTMLType type,
			guint object_size)
{
	HTMLEmbeddedClass *element_class;
	HTMLObjectClass *object_class;

	element_class = HTML_EMBEDDED_CLASS (klass);
	object_class = HTML_OBJECT_CLASS (klass);

	html_embedded_class_init (element_class, type, object_size);

	object_class->copy = copy;
	element_class->encode = encode;

	parent_class = &html_embedded_class;
}

void
html_button_init (HTMLButton *button, 
		  HTMLButtonClass *klass, 
		  GtkWidget *parent, 
		  gchar *name, gchar *value,
		  HTMLButtonType type)
{
	HTMLEmbedded *element;
	HTMLObject *object;
	GtkWidget  *widget;

	element = HTML_EMBEDDED (button);
	object = HTML_OBJECT (button);
	widget = NULL;

	html_embedded_init (element, HTML_EMBEDDED_CLASS (klass), parent, name, value);
	
	if( strlen (element->value)) {
		char *gtk_str;

		gtk_str = e_utf8_to_gtk_string (parent, element->value);
		widget = gtk_button_new_with_label (gtk_str);
		g_free (gtk_str);

	} else {
		switch(type) {
		case BUTTON_NORMAL:
			widget = gtk_button_new ();
			break;
		case BUTTON_SUBMIT:
			widget = gtk_button_new_with_label (_("Submit Query"));
			break;
		case BUTTON_RESET:
			widget = gtk_button_new_with_label (_("Reset"));
			break;
		default:
			g_assert_not_reached ();
		}
	}

	html_embedded_set_widget (element, widget);

	gtk_signal_connect (GTK_OBJECT (widget), "clicked",
                            GTK_SIGNAL_FUNC (clicked_event), button);

	button->type = type;
	button->successful = FALSE;
	/*	gtk_widget_show(element->widget);
		gtk_layout_put(GTK_LAYOUT(parent), element->widget, 0, 0);*/
}

HTMLObject *
html_button_new (GtkWidget *parent, 
		 gchar *name, 
		 gchar *value, 
		 HTMLButtonType type)
{
	HTMLButton *button;

	button = g_new0 (HTMLButton, 1);
	html_button_init (button, &html_button_class, parent, name, value, type);

	return HTML_OBJECT (button);
}