path: root/mail/mail-ops.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* mail-ops.c: callbacks for the mail toolbar/menus */

/* 
 * Author : 
 *  Dan Winship <danw@helixcode.com>
 *
 * Copyright 2000 Helix Code, Inc. (http://www.helixcode.com)
 *
 * 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
 */

#include <config.h>
#include <errno.h>
#include <gnome.h>
#include <libgnomeprint/gnome-print-master.h>
#include <libgnomeprint/gnome-print-master-preview.h>
#include "mail.h"
#include "mail-threads.h"
#include "folder-browser.h"
#include "e-util/e-setup.h"
#include "filter/filter-editor.h"
#include "filter/filter-driver.h"
#include "widgets/e-table/e-table.h"

/* FIXME: is there another way to do this? */
#include "Evolution.h"
#include "evolution-storage.h"

#include "evolution-shell-client.h"

#ifndef HAVE_MKSTEMP
#include <fcntl.h>
#include <sys/stat.h>
#endif

struct post_send_data {
    CamelFolder *folder;
    const char *uid;
    guint32 flags;
};

typedef struct rfm_s { 
    FolderBrowser *fb; 
    char *source_url; 
} rfm_t;

typedef struct rsm_s {
    EMsgComposer *composer;
    CamelTransport *transport;
    CamelMimeMessage *message;
    const char *subject;
    char *from;
    struct post_send_data *psd;
    gboolean ok;
} rsm_t;

static void
real_fetch_mail( gpointer user_data );

static void
real_send_mail( gpointer user_data );

static void
cleanup_send_mail( gpointer userdata );

static void
mail_exception_dialog (char *head, CamelException *ex, gpointer widget)
{
    char *msg;
    GtkWindow *window =
        GTK_WINDOW (gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW));

    msg = g_strdup_printf ("%s:\n%s", head,
                   camel_exception_get_description (ex));
    gnome_error_dialog_parented (msg, window);
    g_free (msg);
}

#ifdef USE_BROKEN_THREADS
static void
async_mail_exception_dialog (char *head, CamelException *ex, gpointer unused )
{
    mail_op_error( "%s: %s", head, camel_exception_get_description( ex ) );
}
#else
#define async_mail_exception_dialog mail_exception_dialog
#endif

static gboolean
check_configured (void)
{
    char *path;
    gboolean configured;

    path = g_strdup_printf ("=%s/config=/mail/configured", evolution_dir);
    if (gnome_config_get_bool (path)) {
        g_free (path);
        return TRUE;
    }

    mail_config_druid ();

    configured = gnome_config_get_bool (path);
    g_free (path);
    return configured;
}

static void
select_first_unread (CamelFolder *folder, int type, gpointer data)
{
    FolderBrowser *fb = data;

    message_list_select (fb->message_list, 0, MESSAGE_LIST_SELECT_NEXT,
                 0, CAMEL_MESSAGE_SEEN);
}

void
real_fetch_mail (gpointer user_data)
{
    rfm_t *info;
    FolderBrowser *fb = NULL;
    CamelException *ex;
    CamelStore *store = NULL, *dest_store = NULL;
    CamelFolder *folder = NULL, *dest_folder = NULL;
    char *url = NULL, *dest_url;
    FilterDriver *filter = NULL;
    char *userrules, *systemrules;
    char *tmp_mbox = NULL, *source;
    guint handler_id = 0;
    struct stat st;

    info = (rfm_t *) user_data;
    fb = info->fb;
    url = info->source_url;
    
    /* If using IMAP, don't do anything... */
    if (!strncmp (url, "imap:", 5))
        return;
    
    ex = camel_exception_new ();

    dest_url = g_strdup_printf ("mbox://%s/local/Inbox", evolution_dir);
    dest_store = camel_session_get_store (session, dest_url, ex);
    g_free (dest_url);
    if (!dest_store) {
        async_mail_exception_dialog ("Unable to get new mail", ex, fb);
        goto cleanup;
    }
    
    dest_folder = camel_store_get_folder (dest_store, "mbox", FALSE, ex);
    if (!dest_folder) {
        async_mail_exception_dialog ("Unable to get new mail", ex, fb);
        goto cleanup;
    }

    tmp_mbox = g_strdup_printf ("%s/local/Inbox/movemail", evolution_dir);

    /* If fetching mail from an mbox store, safely copy it to a
     * temporary store first.
     */
    if (!strncmp (url, "mbox:", 5)) {
        /* Skip over "mbox:" plus host part (if any) of url. */
        source = url + 5;
        if (!strncmp (source, "//", 2))
            source = strchr (source + 2, '/');

        camel_movemail (source, tmp_mbox, ex);
        if (camel_exception_is_set (ex)) {
            async_mail_exception_dialog ("Unable to move mail",
                             ex, fb);
            goto cleanup;
        }

        if (stat (tmp_mbox, &st) == -1 || st.st_size == 0) {
            gnome_ok_dialog ("No new messages.");
            goto cleanup;
        }

        folder = camel_store_get_folder (dest_store, "movemail",
                         FALSE, ex);
        if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
            async_mail_exception_dialog ("Unable to move mail", ex, fb);
            goto cleanup;
        }
    } else {
        CamelFolder *sourcefolder;

        store = camel_session_get_store (session, url, ex);
        if (!store) {
            async_mail_exception_dialog ("Unable to get new mail", ex, fb);
            goto cleanup;
        }

        camel_service_connect (CAMEL_SERVICE (store), ex);
        if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
            if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_USER_CANCEL)
                async_mail_exception_dialog ("Unable to get new mail", ex, fb);
            goto cleanup;
        }

        sourcefolder = camel_store_get_folder (store, "inbox", FALSE, ex);
        if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
            async_mail_exception_dialog ("Unable to get new mail", ex, fb);
            goto cleanup;
        }

        /* can we perform filtering on this source? */
        if (!(sourcefolder->has_summary_capability
              && sourcefolder->has_search_capability)) {
            GPtrArray *uids;
            int i;

            folder = camel_store_get_folder (dest_store,
                             "movemail", TRUE, ex);
            if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
                async_mail_exception_dialog ("Unable to move mail", ex, fb);
                goto cleanup;
            }
            
            uids = camel_folder_get_uids (sourcefolder);
            printf("got %d messages in source\n", uids->len);
            for (i = 0; i < uids->len; i++) {
                CamelMimeMessage *msg;
                
                msg = camel_folder_get_message (sourcefolder, uids->pdata[i], ex);

                if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
                    async_mail_exception_dialog ("Unable to get read message", ex, fb);
                    gtk_object_unref (GTK_OBJECT (sourcefolder));
                    gtk_object_unref (GTK_OBJECT (msg));

                    goto cleanup;
                }

                /* append with flags = 0 since this is a new message */
                camel_folder_append_message (folder, msg, 0, ex);
                if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
                    async_mail_exception_dialog ("Unable to write message", ex, fb);
                    gtk_object_unref (GTK_OBJECT (msg));
                    gtk_object_unref (GTK_OBJECT (sourcefolder));
                    
                    goto cleanup;
                }

                camel_folder_delete_message (sourcefolder, uids->pdata[i]);
                gtk_object_unref (GTK_OBJECT (msg));
            }
            camel_folder_free_uids (sourcefolder, uids);
            camel_folder_sync (sourcefolder, TRUE, ex);
            if (camel_exception_is_set (ex))
                async_mail_exception_dialog ("", ex, fb);
            gtk_object_unref (GTK_OBJECT (sourcefolder));
        } else {
            folder = sourcefolder;
        }
    }

    if (camel_folder_get_message_count (folder) == 0) {
        gnome_ok_dialog ("No new messages.");
        goto cleanup;
    } else if (camel_exception_is_set (ex)) {
        async_mail_exception_dialog ("Unable to get new mail", ex, fb);
        goto cleanup;
    }

    folder_browser_clear_search (fb);

    /* apply filtering rules to this inbox */
    userrules = g_strdup_printf ("%s/filters.xml", evolution_dir);
    systemrules = g_strdup_printf ("%s/evolution/filtertypes.xml", EVOLUTION_DATADIR);
    filter = filter_driver_new (systemrules, userrules, mail_uri_to_folder);
    g_free (userrules);
    g_free (systemrules);

    /* Attach a handler to the destination folder to select the first unread
     * message iff it changes and iff it's the folder being viewed.
     */
    if (dest_folder == fb->folder)
        handler_id = gtk_signal_connect (GTK_OBJECT (dest_folder), "folder_changed",
                         GTK_SIGNAL_FUNC (select_first_unread), fb);

    if (filter_driver_run (filter, folder, dest_folder) == -1) {
        async_mail_exception_dialog ("Unable to get new mail", ex, fb);
        goto cleanup;
    }

    if (dest_folder == fb->folder)
        gtk_signal_disconnect (GTK_OBJECT (dest_folder), handler_id);

 cleanup:
    if (stat (tmp_mbox, &st) == 0 && st.st_size == 0)
        unlink (tmp_mbox); /* FIXME: should use camel to do this */
    g_free (tmp_mbox);

    if (filter)
        gtk_object_unref (GTK_OBJECT (filter));
    if (url)
        g_free (url);

    if (folder) {
        camel_folder_sync (folder, TRUE, ex);
        gtk_object_unref (GTK_OBJECT (folder));
    }

    if (dest_folder) {
        camel_folder_sync (dest_folder, TRUE, ex);
        gtk_object_unref (GTK_OBJECT (dest_folder));
    }

    if (store) {
        camel_service_disconnect (CAMEL_SERVICE (store), ex);
        gtk_object_unref (GTK_OBJECT (store));
    }

    if (dest_store && dest_store != fb->folder->parent_store) {
        camel_service_disconnect (CAMEL_SERVICE (dest_store), ex);
        gtk_object_unref (GTK_OBJECT (dest_store));
    }
    camel_exception_free (ex);
}

void
fetch_mail (GtkWidget *button, gpointer user_data)
{
    char *path, *url = NULL;
    rfm_t *info;

    if (!check_configured ())
        return;

    path = g_strdup_printf ("=%s/config=/mail/source", evolution_dir);
    url = gnome_config_get_string (path);
    g_free (path);

    if (!url) {
        GtkWidget *win = gtk_widget_get_ancestor (GTK_WIDGET (user_data),
                              GTK_TYPE_WINDOW);

        gnome_error_dialog_parented ("You have no remote mail source "
                         "configured", GTK_WINDOW (win));
        return;
    }

    /* This must be dynamically allocated so as not to be clobbered
     * when we return. Actually, making it static in the whole file
     * would probably work.
     */

    info = g_new (rfm_t, 1);
    info->fb = FOLDER_BROWSER (user_data);
    info->source_url = url;
#ifdef USE_BROKEN_THREADS
    mail_operation_try (_("Fetching mail"), real_fetch_mail, NULL, info);
#else
    real_fetch_mail (info);
#endif
}

static gboolean
ask_confirm_for_empty_subject (EMsgComposer *composer)
{
    GtkWidget *message_box;
    int button;

    message_box = gnome_message_box_new (_("This message has no subject.\nReally send?"),
                         GNOME_MESSAGE_BOX_QUESTION,
                         GNOME_STOCK_BUTTON_YES, GNOME_STOCK_BUTTON_NO,
                         NULL);

    button = gnome_dialog_run_and_close (GNOME_DIALOG (message_box));

    if (button == 0)
        return TRUE;
    else
        return FALSE;
}

static void
set_x_mailer_header (CamelMedium *medium)
{
    char *mailer_string;

    mailer_string = g_strdup_printf ("Evolution %s (Developer Preview)", VERSION);

    camel_medium_add_header (medium, "X-Mailer", mailer_string);

    g_free (mailer_string);
}

static void
real_send_mail (gpointer user_data)
{
    rsm_t *info = (rsm_t *) user_data;
    EMsgComposer *composer = NULL;
    CamelTransport *transport = NULL;
    CamelException *ex = NULL;
    CamelMimeMessage *message = NULL;
    const char *subject = NULL;
    char *from = NULL;
    struct post_send_data *psd = NULL;

#ifdef USE_BROKEN_THREADS
    mail_op_hide_progressbar ();
    mail_op_set_message ("Connecting to transport...");
#endif

    ex = camel_exception_new ();
    composer = info->composer;
    transport = info->transport;
    message = info->message;
    subject = info->subject;
    from = info->from;
    psd = info->psd;

    set_x_mailer_header (CAMEL_MEDIUM (message));

    camel_mime_message_set_from (message, from);
    camel_mime_message_set_date (message, CAMEL_MESSAGE_DATE_CURRENT, 0);

    camel_service_connect (CAMEL_SERVICE (transport), ex);

#ifdef USE_BROKEN_THREADS
    mail_op_set_message ("Connected. Sending...");
#endif

    if (!camel_exception_is_set (ex))
        camel_transport_send (transport, CAMEL_MEDIUM (message), ex);

    if (!camel_exception_is_set (ex)) {
#ifdef USE_BROKEN_THREADS
        mail_op_set_message ("Sent. Disconnecting...");
#endif      
        camel_service_disconnect (CAMEL_SERVICE (transport), ex);
    }

    if (camel_exception_is_set (ex)) {
        async_mail_exception_dialog ("Could not send message", ex, composer);
        info->ok = FALSE;
    } else {
        if (psd) {
            camel_folder_set_message_flags (psd->folder, psd->uid,
                            psd->flags, psd->flags);
        }
        info->ok = TRUE;

    }

    camel_exception_free (ex);
}

static void
cleanup_send_mail (gpointer userdata)
{
    rsm_t *info = (rsm_t *) userdata;
    
    if (info->ok) {
        gtk_object_destroy (GTK_OBJECT (info->composer));
    }

    gtk_object_unref (GTK_OBJECT (info->message));
    g_free (info);
}

static void
composer_send_cb (EMsgComposer *composer, gpointer data)
{
    static CamelTransport *transport = NULL;
    struct post_send_data *psd = data;
    rsm_t *info;
    static char *from = NULL;
    const char *subject;
    CamelException *ex;
    CamelMimeMessage *message;
    char *name, *addr, *path;

    ex = camel_exception_new ();

    if (!from) {
        CamelInternetAddress *ciaddr;

        path = g_strdup_printf ("=%s/config=/mail/id_name", evolution_dir);
        name = gnome_config_get_string (path);
        g_assert (name);
        g_free (path);
        path = g_strdup_printf ("=%s/config=/mail/id_addr", evolution_dir);
        addr = gnome_config_get_string (path);
        g_assert (addr);
        g_free (path);

        ciaddr = camel_internet_address_new ();
        camel_internet_address_add (ciaddr, name, addr);

        from = camel_address_encode (CAMEL_ADDRESS (ciaddr));
    }

    if (!transport) {
        char *url;

        path = g_strdup_printf ("=%s/config=/mail/transport",
                    evolution_dir);
        url = gnome_config_get_string (path);
        g_assert (url);
        g_free (path);

        transport = camel_session_get_transport (session, url, ex);
        if (camel_exception_get_id (ex) != CAMEL_EXCEPTION_NONE) {
            mail_exception_dialog ("Could not load mail transport",
                           ex, composer);
            camel_exception_free (ex);
            return;
        }
    }

    message = e_msg_composer_get_message (composer);

    subject = camel_mime_message_get_subject (message);
    if (subject == NULL || subject[0] == '\0') {
        if (! ask_confirm_for_empty_subject (composer)) {
            gtk_object_unref (GTK_OBJECT (message));
            return;
        }
    }

    info = g_new0 (rsm_t, 1);
    info->composer = composer;
    info->transport = transport;
    info->message = message;
    info->subject = subject;
    info->from = from;
    info->psd = psd;

#ifdef USE_BROKEN_THREADS
    mail_operation_try ("Send Message", real_send_mail, cleanup_send_mail, info);
#else
    real_send_mail (info);
    cleanup_send_mail (info);
#endif
}

static void
free_psd (GtkWidget *composer, gpointer user_data)
{
    struct post_send_data *psd = user_data;

    gtk_object_unref (GTK_OBJECT (psd->folder));
    g_free (psd);
}

static GtkWidget *
create_msg_composer (const char *url)
{
    GtkWidget *composer_widget;
    gboolean send_html;
    char *path;
    char *string;

    path = g_strdup_printf ("=%s/config=/mail/msg_format", evolution_dir);
    string = gnome_config_get_string (path);
    g_free (path);

    if (string == NULL) {
        send_html = FALSE;
    } else {
        if (!strcasecmp(string, "plain"))
            send_html = FALSE;
        else
            send_html = TRUE;
    }

    if (url != NULL)
        composer_widget = e_msg_composer_new_from_url (url);
    else
        composer_widget = e_msg_composer_new ();

    e_msg_composer_set_send_html (E_MSG_COMPOSER (composer_widget), send_html);

    return composer_widget;
}

void
compose_msg (GtkWidget *widget, gpointer user_data)
{
    GtkWidget *composer;

    if (!check_configured ())
        return;

    composer = create_msg_composer (NULL);

    gtk_signal_connect (GTK_OBJECT (composer), "send",
                GTK_SIGNAL_FUNC (composer_send_cb), NULL);
    gtk_widget_show (composer);
}

/* Send according to a mailto (RFC 2368) URL. */
void
send_to_url (const char *url)
{
    GtkWidget *composer;

    if (!check_configured ())
        return;

    composer = create_msg_composer (url);

    gtk_signal_connect (GTK_OBJECT (composer), "send",
                GTK_SIGNAL_FUNC (composer_send_cb), NULL);
    gtk_widget_show (composer);
}   

static void
reply (FolderBrowser *fb, gboolean to_all)
{
    EMsgComposer *composer;
    struct post_send_data *psd;

    if (!check_configured () || !fb->message_list->cursor_uid ||
        !fb->mail_display->current_message)
        return;

    psd = g_new (struct post_send_data, 1);
    psd->folder = fb->folder;
    gtk_object_ref (GTK_OBJECT (psd->folder));
    psd->uid = fb->message_list->cursor_uid;
    psd->flags = CAMEL_MESSAGE_ANSWERED;

    composer = mail_generate_reply (fb->mail_display->current_message, to_all);

    gtk_signal_connect (GTK_OBJECT (composer), "send",
                GTK_SIGNAL_FUNC (composer_send_cb), psd); 
    gtk_signal_connect (GTK_OBJECT (composer), "destroy",
                GTK_SIGNAL_FUNC (free_psd), psd); 

    gtk_widget_show (GTK_WIDGET (composer));    
}

void
reply_to_sender (GtkWidget *button, gpointer user_data)
{
    reply (FOLDER_BROWSER (user_data), FALSE);
}

void
reply_to_all (GtkWidget *button, gpointer user_data)
{
    reply (FOLDER_BROWSER (user_data), TRUE);
}

static void
attach_msg (MessageList *ml, const char *uid, gpointer data)
{
    EMsgComposer *composer = data;
    CamelMimeMessage *message;
    CamelMimePart *part;
    const char *subject;
    char *desc;

    message = camel_folder_get_message (ml->folder, uid, NULL);
    if (!message)
        return;
    subject = camel_mime_message_get_subject (message);
    if (subject)
        desc = g_strdup_printf ("Forwarded message - %s", subject);
    else
        desc = g_strdup ("Forwarded message");

    part = camel_mime_part_new ();
    camel_mime_part_set_disposition (part, "inline");
    camel_mime_part_set_description (part, desc);
    camel_medium_set_content_object (CAMEL_MEDIUM (part),
                     CAMEL_DATA_WRAPPER (message));
    camel_mime_part_set_content_type (part, "message/rfc822");

    e_msg_composer_attach (composer, part);

    gtk_object_unref (GTK_OBJECT (part));
    gtk_object_unref (GTK_OBJECT (message));
    g_free (desc);
}

void
forward_msg (GtkWidget *button, gpointer user_data)
{
    FolderBrowser *fb = FOLDER_BROWSER (user_data);
    EMsgComposer *composer;
    CamelMimeMessage *cursor_msg;
    const char *from, *subject;
    char *fwd_subj;
    
    cursor_msg = fb->mail_display->current_message;
    if (!check_configured () || !cursor_msg)
        return;

    composer = E_MSG_COMPOSER (create_msg_composer (NULL));
    message_list_foreach (fb->message_list, attach_msg, composer);

    from = camel_mime_message_get_from (cursor_msg);
    subject = camel_mime_message_get_subject (cursor_msg);
    if (from) {
        if (subject && *subject) {
            while (*subject == ' ')
                subject++;
            fwd_subj = g_strdup_printf ("[%s] %s", from, subject);
        } else {
            fwd_subj = g_strdup_printf ("[%s] (forwarded message)",
                            from);
        }
    } else {
        fwd_subj = NULL;
    }

    e_msg_composer_set_headers (composer, NULL, NULL, NULL, fwd_subj);
    g_free (fwd_subj);

    gtk_signal_connect (GTK_OBJECT (composer), "send",
                GTK_SIGNAL_FUNC (composer_send_cb), NULL);

    gtk_widget_show (GTK_WIDGET (composer));    
}

struct move_data {
    CamelFolder *source, *dest;
    CamelException *ex;
};

static void
real_move_msg (MessageList *ml, const char *uid, gpointer user_data)
{
    struct move_data *rfd = user_data;

    if (camel_exception_is_set (rfd->ex))
        return;

    camel_folder_move_message_to (rfd->source, uid, rfd->dest, rfd->ex);
}

void
move_msg (GtkWidget *button, gpointer user_data)
{
    FolderBrowser *fb = user_data;
    MessageList *ml = fb->message_list;
    char *uri, *physical, *path;
    struct move_data rfd;
    const char *allowed_types[] = { "mail", NULL };

    extern EvolutionShellClient *global_shell_client;
    static char *last;

    if (last == NULL)
        last = g_strdup ("");

    evolution_shell_client_user_select_folder  (global_shell_client,
                            _("Move message(s) to"),
                            last, allowed_types, &uri, &physical);
    if (!uri)
        return;

    path = strchr (uri, '/');
    if (path && strcmp (last, path) != 0) {
        g_free (last);
        last = g_strdup (path);
    }
    g_free (uri);

    rfd.source = ml->folder;
    rfd.dest = mail_uri_to_folder (physical);
    g_free (physical);
    if (!rfd.dest)
        return;
    rfd.ex = camel_exception_new ();

    message_list_foreach (ml, real_move_msg, &rfd);
    gtk_object_unref (GTK_OBJECT (rfd.dest));

    if (camel_exception_is_set (rfd.ex))
        mail_exception_dialog ("Could not move message", rfd.ex, fb);
    camel_exception_free (rfd.ex);
}

static void
real_delete_msg (MessageList *ml, const char *uid, gpointer user_data)
{
    CamelException *ex = user_data;
    guint32 flags;

    if (camel_exception_is_set (ex))
        return;

    /* Toggle the deleted flag without touching other flags. */
    flags = camel_folder_get_message_flags (ml->folder, uid);
    camel_folder_set_message_flags (ml->folder, uid,
                    CAMEL_MESSAGE_DELETED, ~flags);
}

void
delete_msg (GtkWidget *button, gpointer user_data)
{
    FolderBrowser *fb = user_data;
    MessageList *ml = fb->message_list;
    CamelException ex;

    camel_exception_init (&ex);
    message_list_foreach (ml, real_delete_msg, &ex);
    if (camel_exception_is_set (&ex)) {
        mail_exception_dialog ("Could not toggle deleted flag",
                       &ex, fb);
        camel_exception_clear (&ex);
        return;
    }
}

static void real_expunge_folder (gpointer user_data)
{
    FolderBrowser *fb = FOLDER_BROWSER (user_data);
    CamelException ex;

#ifdef USE_BROKEN_THREADS
    mail_op_hide_progressbar ();
    mail_op_set_message ("Expunging %s...", fb->message_list->folder->full_name);
#endif

    camel_exception_init (&ex);

    camel_folder_expunge (fb->message_list->folder, &ex);

    /* FIXME: is there a better way to force an update? */
    /* FIXME: Folder should raise a signal to say its contents has changed ... */
    e_table_model_changed (fb->message_list->table_model);

    if (camel_exception_get_id (&ex) != CAMEL_EXCEPTION_NONE) {
        async_mail_exception_dialog ("Unable to expunge deleted messages", &ex, fb);
    }
}

void
expunge_folder (BonoboUIHandler *uih, void *user_data, const char *path)
{
    FolderBrowser *fb = FOLDER_BROWSER(user_data);

    if (fb->message_list->folder) {
#ifdef USE_BROKEN_THREADS
        mail_operation_try ("Expunge Folder", real_expunge_folder, NULL, fb);
#else
        real_expunge_folder (fb);
#endif
    }
}

static void
filter_druid_clicked (FilterEditor *fe, int button, FolderBrowser *fb)
{
    if (button == 0) {
        char *user;

        user = g_strdup_printf ("%s/filters.xml", evolution_dir);
        filter_editor_save_rules (fe, user);
        g_free (user);
    }
    
    if (button != -1) {
        gnome_dialog_close (GNOME_DIALOG (fe));
    }
}

void
filter_edit (BonoboUIHandler *uih, void *user_data, const char *path)
{
    FolderBrowser *fb = FOLDER_BROWSER (user_data);
    FilterEditor *fe;
    char *user, *system;

    fe = filter_editor_new ();

    user = g_strdup_printf ("%s/filters.xml", evolution_dir);
    system = g_strdup_printf ("%s/evolution/filtertypes.xml", EVOLUTION_DATADIR);
    filter_editor_set_rule_files (fe, system, user);
    g_free (user);
    g_free (system);
    gnome_dialog_append_buttons (GNOME_DIALOG (fe), GNOME_STOCK_BUTTON_OK, GNOME_STOCK_BUTTON_CANCEL, 0);
    gtk_signal_connect (GTK_OBJECT (fe), "clicked", filter_druid_clicked, fb);
    gtk_widget_show (GTK_WIDGET (fe));
}

static void
vfolder_editor_clicked(FilterEditor *fe, int button, FolderBrowser *fb)
{
    if (button == 0) {
        char *user;

        user = g_strdup_printf ("%s/vfolders.xml", evolution_dir);
        filter_editor_save_rules (fe, user);
        g_free (user);

        /* FIXME: this is also not the way to do this, see also
           component-factory.c */
        {
            EvolutionStorage *storage;
            FilterDriver *fe;
            int i, count;
            char *user, *system;
            extern char *evolution_dir;

            storage = gtk_object_get_data (GTK_OBJECT (fb), "e-storage");
    
            user = g_strdup_printf ("%s/vfolders.xml", evolution_dir);
            system = g_strdup_printf ("%s/evolution/vfoldertypes.xml", EVOLUTION_DATADIR);
            fe = filter_driver_new (system, user, mail_uri_to_folder);
            g_free (user);
            g_free (system);
            count = filter_driver_rule_count (fe);
            for (i = 0; i < count; i++) {
                struct filter_option *fo;
                GString *query;
                struct filter_desc *desc = NULL;
                char *desctext, descunknown[64];
                char *name;
                
                fo = filter_driver_rule_get (fe, i);
                if (fo == NULL)
                    continue;
                query = g_string_new ("");
                if (fo->description)
                    desc = fo->description->data;
                if (desc)
                    desctext = desc->data;
                else {
                    sprintf (descunknown, "volder-%p", fo);
                    desctext = descunknown;
                }
                g_string_sprintf (query, "vfolder:/%s/vfolder/%s?", evolution_dir, desctext);
                filter_driver_expand_option (fe, query, NULL, fo);
                name = g_strdup_printf ("/%s", desctext);
                evolution_storage_new_folder (storage, name, "mail",
                                  query->str, name + 1);
                g_string_free (query, TRUE);
                g_free (name);
            }
            gtk_object_unref (GTK_OBJECT (fe));
        }

    }
    if (button != -1) {
        gnome_dialog_close (GNOME_DIALOG (fe));
    }
}

void
vfolder_edit (BonoboUIHandler *uih, void *user_data, const char *path)
{
    FolderBrowser *fb = FOLDER_BROWSER (user_data);
    FilterEditor *fe;
    char *user, *system;

    fe = filter_editor_new ();

    user = g_strdup_printf ("%s/vfolders.xml", evolution_dir);
    system = g_strdup_printf ("%s/evolution/vfoldertypes.xml", EVOLUTION_DATADIR);
    filter_editor_set_rule_files (fe, system, user);
    g_free (user);
    g_free (system);
    gnome_dialog_append_buttons (GNOME_DIALOG (fe), GNOME_STOCK_BUTTON_OK, GNOME_STOCK_BUTTON_CANCEL, 0);
    gtk_signal_connect (GTK_OBJECT (fe), "clicked", vfolder_editor_clicked, fb);
    gtk_widget_show (GTK_WIDGET (fe));
}

void
providers_config (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GtkWidget *pc;

    pc = providers_config_new ();

    gtk_widget_show (pc);
}

void
print_msg (GtkWidget *button, gpointer user_data)
{
    FolderBrowser *fb = user_data;
    GnomePrintMaster *print_master;
    GnomePrintContext *print_context;
    GtkWidget *preview;

    print_master = gnome_print_master_new ();

    print_context = gnome_print_master_get_context (print_master);
    gtk_html_print (fb->mail_display->html, print_context);

    preview = GTK_WIDGET (gnome_print_master_preview_new (
        print_master, "Mail Print Preview"));
    gtk_widget_show (preview);

    gtk_object_unref (GTK_OBJECT (print_master));
}