source: trunk/third/gtkhtml3/src/htmlbutton.c @ 19539

/* -*- 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-i18n.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)) {
                widget = gtk_button_new_with_label (element->value);
        } 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);

        g_signal_connect (widget, "clicked", G_CALLBACK (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);
}