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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-msg-composer-address-entry.c
 *
 * Copyright (C) 1999  Helix Code, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli
 */

/* This is a custom GtkEntry for entering address lists.  For now, it does not
   have any fancy features, but in the future we might want to make it
   cooler.  */

#include <gnome.h>

#include "e-msg-composer-address-entry.h"


static GtkEntryClass *parent_class = NULL;


/* Initialization.  */

static void
class_init (EMsgComposerAddressEntryClass *klass)
{
    GtkObjectClass *object_class;

    object_class = (GtkObjectClass*) klass;

    parent_class = gtk_type_class (gtk_entry_get_type ());
}

static void
init (EMsgComposerAddressEntry *msg_composer_address_entry)
{
}

GtkType
e_msg_composer_address_entry_get_type (void)
{
    static GtkType type = 0;

    if (type == 0) {
        static const GtkTypeInfo info = {
            "EMsgComposerAddressEntry",
            sizeof (EMsgComposerAddressEntry),
            sizeof (EMsgComposerAddressEntryClass),
            (GtkClassInitFunc) class_init,
            (GtkObjectInitFunc) init,
            /* reserved_1 */ NULL,
            /* reserved_2 */ NULL,
            (GtkClassInitFunc) NULL,
        };

        type = gtk_type_unique (gtk_entry_get_type (), &info);
    }

    return type;
}


GtkWidget *
e_msg_composer_address_entry_new (void)
{
    GtkWidget *new;

    new = gtk_type_new (e_msg_composer_address_entry_get_type ());

    return new;
}


/**
 * e_msg_composer_address_entry_get_addresses:
 * @entry: An address entry widget
 * 
 * Retrieve the list of addresses stored in @entry.
 * 
 * Return value: A GList of pointers to strings representing the addresses.
 * Notice that the strings must be freed by the caller when not needed anymore.
 **/
GList *
e_msg_composer_address_entry_get_addresses (EMsgComposerAddressEntry *entry)
{
    GList *list;
    const gchar *s;
    const gchar *p, *oldp;
    gboolean in_quotes;

    s = gtk_entry_get_text (GTK_ENTRY (entry));

    in_quotes = FALSE;
    list = NULL;

    p = s;
    oldp = s;

    while (1) {
        if (*p == '"') {
            in_quotes = ! in_quotes;
            p++;
        } else if ((! in_quotes && *p == ',') || *p == 0) {
            if (p != oldp) {
                gchar *new_addr;

                new_addr = g_strndup (oldp, p - oldp);
                new_addr = g_strstrip (new_addr);
                if (*new_addr != '\0')
                    list = g_list_prepend (list, new_addr);
                else
                    g_free (new_addr);
            }

            while (*p == ',' || *p == ' ' || *p == '\t')
                p++;

            if (*p == 0)
                break;

            oldp = p;
        } else {
            p++;
        }
    }

    return g_list_reverse (list);
}