path: root/composer/e-msg-composer.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-msg-composer.c
 *
 * Copyright (C) 1999  Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * published by the Free Software Foundation; either version 2 of the
 * License as published by the Free Software Foundation.
 *
 * 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.
 *
 * Authors:
 *   Ettore Perazzoli (ettore@ximian.com)
 *   Jeffrey Stedfast (fejj@ximian.com)
 *   Miguel de Icaza  (miguel@ximian.com)
 *   Radek Doulik     (rodo@ximian.com)
 * 
 */

/*

   TODO

   - Somehow users should be able to see if any file(s) are attached even when
     the attachment bar is not shown.

   Should use EventSources to keep track of global changes made to configuration
   values.  Right now it ignores the problem olympically. Miguel.
*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>

#include <gtk/gtkoptionmenu.h>
#include <gtk/gtkscrolledwindow.h>

#include <gconf/gconf.h>
#include <gconf/gconf-client.h>

#include <libgnome/gnome-exec.h>
#include <libgnomeui/gnome-uidefs.h>
#include <libgnomeui/gnome-window-icon.h>

#include <bonobo/bonobo-exception.h>
#include <bonobo/bonobo-moniker-util.h>
#include <bonobo/bonobo-stream-memory.h>
#include <bonobo/bonobo-ui-util.h>
#include <bonobo/bonobo-widget.h>

#include <libgnomevfs/gnome-vfs.h>

#include <gtkhtml/htmlselection.h>

#include <glade/glade.h>

#include <gal/util/e-iconv.h>
#include <gal/e-text/e-entry.h>

#include "e-util/e-dialog-utils.h"
#include "widgets/misc/e-charset-picker.h"

#include "camel/camel.h"
#include "camel/camel-charset-map.h"
#include "camel/camel-session.h"

#include "mail/mail-callbacks.h"
#include "mail/mail-crypto.h"
#include "mail/mail-format.h"
#include "mail/mail-tools.h"
#include "mail/mail-ops.h"
#include "mail/mail-mt.h"
#include "mail/mail-session.h"

#include "e-msg-composer.h"
#include "e-msg-composer-attachment-bar.h"
#include "e-msg-composer-hdrs.h"
#include "e-msg-composer-select-file.h"

#include "evolution-shell-component-utils.h"

#include "Editor.h"
#include "listener.h"

#define GNOME_GTKHTML_EDITOR_CONTROL_ID "OAFIID:GNOME_GtkHTML_Editor:3.0"

#define d(x) x


#define DEFAULT_WIDTH 600
#define DEFAULT_HEIGHT 500

enum {
    SEND,
    SAVE_DRAFT,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

enum {
    DND_TYPE_MESSAGE_RFC822,
    DND_TYPE_TEXT_URI_LIST,
    DND_TYPE_TEXT_VCARD,
};

static GtkTargetEntry drop_types[] = {
    { "message/rfc822", 0, DND_TYPE_MESSAGE_RFC822 },
    { "text/uri-list", 0, DND_TYPE_TEXT_URI_LIST },
    { "text/x-vcard", 0, DND_TYPE_TEXT_VCARD },
};

static int num_drop_types = sizeof (drop_types) / sizeof (drop_types[0]);


/* The parent class.  */
static BonoboWindowClass *parent_class = NULL;

/* All the composer windows open, for bookkeeping purposes.  */
static GSList *all_composers = NULL;


/* local prototypes */
static GList *add_recipients   (GList *list, const char *recips, gboolean decode);

static void handle_mailto (EMsgComposer *composer, const char *mailto);

static void message_rfc822_dnd (EMsgComposer *composer, CamelStream *stream);

/* used by e_msg_composer_add_message_attachments() */
static void add_attachments_from_multipart (EMsgComposer *composer, CamelMultipart *multipart,
                        gboolean just_inlines, int depth);

/* used by e_msg_composer_new_with_message() */
static void handle_multipart (EMsgComposer *composer, CamelMultipart *multipart, int depth);
static void handle_multipart_alternative (EMsgComposer *composer, CamelMultipart *multipart, int depth);
static void handle_multipart_encrypted (EMsgComposer *composer, CamelMultipart *multipart, int depth);
static void handle_multipart_signed (EMsgComposer *composer, CamelMultipart *multipart, int depth);

static void set_editor_signature (EMsgComposer *composer);


static GByteArray *
get_text (Bonobo_PersistStream persist, char *format)
{
    BonoboStream *stream;
    BonoboStreamMem *stream_mem;
    CORBA_Environment ev;
    GByteArray *text;
    
    CORBA_exception_init (&ev);
    
    stream = bonobo_stream_mem_create (NULL, 0, FALSE, TRUE);
    Bonobo_PersistStream_save (persist, (Bonobo_Stream)bonobo_object_corba_objref (BONOBO_OBJECT (stream)),
                   format, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Exception getting mail '%s'",
               bonobo_exception_get_text (&ev));
        return NULL;
    }
    
    CORBA_exception_free (&ev);
    
    stream_mem = BONOBO_STREAM_MEM (stream);
    text = g_byte_array_new ();
    g_byte_array_append (text, stream_mem->buffer, stream_mem->pos);
    bonobo_object_unref (BONOBO_OBJECT (stream));
    
    return text;
}

#define LINE_LEN 72

static CamelMimePartEncodingType
best_encoding (GByteArray *buf, const char *charset)
{
    char *in, *out, outbuf[256], *ch;
    size_t inlen, outlen;
    int status, count = 0;
    iconv_t cd;
    
    if (!charset)
        return -1;
    
    cd = e_iconv_open (charset, "utf-8");
    if (cd == (iconv_t) -1)
        return -1;
    
    in = buf->data;
    inlen = buf->len;
    do {
        out = outbuf;
        outlen = sizeof (outbuf);
        status = e_iconv (cd, (const char **) &in, &inlen, &out, &outlen);
        for (ch = out - 1; ch >= outbuf; ch--) {
            if ((unsigned char)*ch > 127)
                count++;
        }
    } while (status == (size_t) -1 && errno == E2BIG);
    e_iconv_close (cd);
    
    if (status == (size_t) -1)
        return -1;
    
    if (count == 0)
        return CAMEL_MIME_PART_ENCODING_7BIT;
    else if (count <= buf->len * 0.17)
        return CAMEL_MIME_PART_ENCODING_QUOTEDPRINTABLE;
    else
        return CAMEL_MIME_PART_ENCODING_BASE64;
}

static const char *
composer_get_default_charset_setting (void)
{
    GConfClient *gconf;
    const char *charset;
    char *buf;
    
    gconf = gconf_client_get_default ();
    buf = gconf_client_get_string (gconf, "/apps/evolution/mail/composer/charset", NULL);
    
    if (buf == NULL)
        buf = gconf_client_get_string (gconf, "/apps/evolution/mail/format/charset", NULL);
    
    g_object_unref (gconf);
    
    if (buf != NULL) {
        charset = e_iconv_charset_name (buf);
        g_free (buf);
    } else
        charset = e_iconv_locale_charset ();
    
    return charset ? charset : "us-ascii";
}

static const char *
best_charset (GByteArray *buf, const char *default_charset, CamelMimePartEncodingType *encoding)
{
    const char *charset;
    
    /* First try US-ASCII */
    *encoding = best_encoding (buf, "US-ASCII");
    if (*encoding == CAMEL_MIME_PART_ENCODING_7BIT)
        return NULL;
    
    /* Next try the user-specified charset for this message */
    charset = default_charset;
    *encoding = best_encoding (buf, charset);
    if (*encoding != -1)
        return charset;
    
    /* Now try the user's default charset from the mail config */
    charset = composer_get_default_charset_setting ();
    *encoding = best_encoding (buf, charset);
    if (*encoding != -1)
        return charset;
    
    /* Try to find something that will work */
    charset = camel_charset_best (buf->data, buf->len);
    if (!charset)
        *encoding = CAMEL_MIME_PART_ENCODING_7BIT;
    else
        *encoding = best_encoding (buf, charset);
    
    return charset;
}

static gboolean
clear_inline_images (gpointer key, gpointer value, gpointer user_data)
{
    g_free (key);
    camel_object_unref (value);

    return TRUE;
}

static void
clear_current_images (EMsgComposer *composer)
{
    g_list_free (composer->current_images);
    composer->current_images = NULL;
}

static gboolean
clear_url (gpointer key, gpointer value, gpointer user_data)
{
    g_free (key);

    return TRUE;
}

void
e_msg_composer_clear_inlined_table (EMsgComposer *composer)
{
    g_hash_table_foreach_remove (composer->inline_images, clear_inline_images, NULL);
    g_hash_table_foreach_remove (composer->inline_images_by_url, clear_url, NULL);
}

static void
add_inlined_images (EMsgComposer *composer, CamelMultipart *multipart)
{
    GList *d = composer->current_images;
    GHashTable *added;

    added = g_hash_table_new (g_direct_hash, g_direct_equal);
    while (d) {
        CamelMimePart *part = d->data;

        if (!g_hash_table_lookup (added, part)) {
            camel_multipart_add_part (multipart, part);
            g_hash_table_insert (added, part, part);
        }
        d = d->next;
    }
    g_hash_table_destroy (added);
}

/* This functions builds a CamelMimeMessage for the message that the user has
 * composed in `composer'.
 */
static CamelMimeMessage *
build_message (EMsgComposer *composer, gboolean save_html_object_data)
{
    EMsgComposerAttachmentBar *attachment_bar =
        E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar);
    EMsgComposerHdrs *hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
    CamelMimeMessage *new;
    GByteArray *data;
    CamelDataWrapper *plain, *html, *current;
    CamelMimePartEncodingType plain_encoding;
    const char *charset;
    CamelContentType *type;
    CamelStream *stream;
    CamelMultipart *body = NULL;
    CamelMimePart *part;
    CamelException ex;
    int i;
    
    if (composer->persist_stream_interface == CORBA_OBJECT_NIL)
        return NULL;
    
    /* evil kludgy hack for Redirect */
    if (composer->redirect) {
        e_msg_composer_hdrs_to_redirect (hdrs, composer->redirect);
        camel_object_ref (composer->redirect);
        return composer->redirect;
    }
    
    new = camel_mime_message_new ();
    e_msg_composer_hdrs_to_message (hdrs, new);
    for (i = 0; i < composer->extra_hdr_names->len; i++) {
        camel_medium_add_header (CAMEL_MEDIUM (new),
                     composer->extra_hdr_names->pdata[i],
                     composer->extra_hdr_values->pdata[i]);
    }
    
    if (composer->mime_body) {
        plain_encoding = CAMEL_MIME_PART_ENCODING_7BIT;
        for (i = 0; composer->mime_body[i]; i++) {
            if ((unsigned char) composer->mime_body[i] > 127) {
                plain_encoding = CAMEL_MIME_PART_ENCODING_QUOTEDPRINTABLE;
                break;
            }
        }
        data = g_byte_array_new ();
        g_byte_array_append (data, composer->mime_body, strlen (composer->mime_body));
        type = header_content_type_decode (composer->mime_type);
    } else {
        data = get_text (composer->persist_stream_interface, "text/plain");
        if (!data) {
            /* The component has probably died */
            camel_object_unref (CAMEL_OBJECT (new));
            return NULL;
        }
        
        /* FIXME: we may want to do better than this... */
        charset = best_charset (data, composer->charset, &plain_encoding);
        type = header_content_type_new ("text", "plain");
        if (charset)
            header_content_type_set_param (type, "charset", charset);
    }
    
    plain = camel_data_wrapper_new ();
    plain->rawtext = FALSE;
    
    stream = camel_stream_mem_new_with_byte_array (data);
    camel_data_wrapper_construct_from_stream (plain, stream);
    camel_object_unref (stream);
    camel_data_wrapper_set_mime_type_field (plain, type);
    header_content_type_unref (type);
    
    if (composer->send_html) {
        CORBA_Environment ev;
        clear_current_images (composer);
        
        if (save_html_object_data) {
            CORBA_exception_init (&ev);
            GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "save-data-on", &ev);
        }
        data = get_text (composer->persist_stream_interface, "text/html");      
        if (save_html_object_data) {
            GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "save-data-off", &ev);
            CORBA_exception_free (&ev);
        }
        
        if (!data) {
            /* The component has probably died */
            camel_object_unref (new);
            camel_object_unref (plain);
            return NULL;
        }
        
        html = camel_data_wrapper_new ();
        html->rawtext = FALSE;
        
        stream = camel_stream_mem_new_with_byte_array (data);
        camel_data_wrapper_construct_from_stream (html, stream);
        camel_object_unref (stream);
        camel_data_wrapper_set_mime_type (html, "text/html; charset=utf-8");
        
        /* Build the multipart/alternative */
        body = camel_multipart_new ();
        camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (body),
                          "multipart/alternative");
        camel_multipart_set_boundary (body, NULL);
        
        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), plain);
        camel_object_unref (plain);
        camel_mime_part_set_encoding (part, plain_encoding);
        camel_multipart_add_part (body, part);
        camel_object_unref (part);
        
        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), html);
        camel_object_unref (html);
        camel_multipart_add_part (body, part);
        camel_object_unref (part);
        
        /* If there are inlined images, construct a
         * multipart/related containing the
         * multipart/alternative and the images.
         */
        if (composer->current_images) {
            CamelMultipart *html_with_images;
            
            html_with_images = camel_multipart_new ();
            camel_data_wrapper_set_mime_type (
                CAMEL_DATA_WRAPPER (html_with_images),
                "multipart/related; type=\"multipart/alternative\"");
            camel_multipart_set_boundary (html_with_images, NULL);
            
            part = camel_mime_part_new ();
            camel_medium_set_content_object (CAMEL_MEDIUM (part), CAMEL_DATA_WRAPPER (body));
            camel_object_unref (body);
            camel_multipart_add_part (html_with_images, part);
            camel_object_unref (part);
            
            add_inlined_images (composer, html_with_images);
            clear_current_images (composer);
            
            current = CAMEL_DATA_WRAPPER (html_with_images);
        } else
            current = CAMEL_DATA_WRAPPER (body);
    } else
        current = plain;
    
    if (e_msg_composer_attachment_bar_get_num_attachments (attachment_bar)) {
        CamelMultipart *multipart = camel_multipart_new ();
        
        if (composer->is_alternative) {
            camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (multipart),
                              "multipart/alternative");
        }
        
        /* Generate a random boundary. */
        camel_multipart_set_boundary (multipart, NULL);
        
        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), current);
        if (current == plain)
            camel_mime_part_set_encoding (part, plain_encoding);
        camel_object_unref (current);
        camel_multipart_add_part (multipart, part);
        camel_object_unref (part);
        
        e_msg_composer_attachment_bar_to_multipart (attachment_bar, multipart, composer->charset);
        
        if (composer->is_alternative) {
            int i;
            
            for (i = camel_multipart_get_number (multipart); i > 1; i--) {
                part = camel_multipart_get_part (multipart, i - 1);
                camel_medium_remove_header (CAMEL_MEDIUM (part), "Content-Disposition");
            }
        }
        
        current = CAMEL_DATA_WRAPPER (multipart);
    }
    
    camel_exception_init (&ex);
    
    if (composer->pgp_sign || composer->pgp_encrypt) {
        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), current);
        if (current == plain)
            camel_mime_part_set_encoding (part, plain_encoding);
        camel_object_unref (current);
        
        if (composer->pgp_sign) {
            CamelInternetAddress *from = NULL;
            CamelMultipartSigned *mps;
            CamelCipherContext *cipher;
            const char *userid;
            
            cipher = mail_crypto_get_pgp_cipher_context (hdrs->account);
            if (cipher == NULL) {
                camel_exception_setv (&ex, CAMEL_EXCEPTION_SYSTEM,
                              _("Could not create a PGP signature context"));
                goto exception;
            }
            
            if (hdrs->account && hdrs->account->pgp_key && *hdrs->account->pgp_key) {
                userid = hdrs->account->pgp_key;
            } else {
                /* time for plan b */
                from = e_msg_composer_hdrs_get_from (hdrs);
                camel_internet_address_get (from, 0, NULL, &userid);
            }
            
            mps = camel_multipart_signed_new ();
            camel_multipart_signed_sign (mps, cipher, part, userid, CAMEL_CIPHER_HASH_SHA1, &ex);
            camel_object_unref (cipher);
            
            if (from)
                camel_object_unref (from);
            
            /* if cancelled, just leave part as is, otherwise, replace content with the multipart */
            if (camel_exception_is_set (&ex)) {
                if (camel_exception_get_id (&ex) == CAMEL_EXCEPTION_USER_CANCEL) {
                    camel_exception_clear (&ex);
                    goto exception;
                } else {
                    camel_object_unref (mps);
                    goto exception;
                }
            } else {
                camel_object_unref (part);
                part = camel_mime_part_new ();
                camel_multipart_set_boundary (CAMEL_MULTIPART (mps), NULL);
                camel_medium_set_content_object (CAMEL_MEDIUM (part), (CamelDataWrapper *) mps);
            }
            
            camel_object_unref (mps);
        }
        
        if (composer->pgp_encrypt) {
            /* FIXME: recipients should be an array of key ids rather than email addresses */
            CamelInternetAddress *from = NULL;
            const CamelInternetAddress *addr;
            CamelMultipartEncrypted *mpe;
            CamelCipherContext *cipher;
            GPtrArray *recipients;
            const char *address;
            const char *userid;
            int i, len;
            
            camel_exception_init (&ex);
            recipients = g_ptr_array_new ();
            
            /* get our userid */
            userid = NULL;
            if (hdrs->account && hdrs->account->pgp_key && *hdrs->account->pgp_key) {
                userid = hdrs->account->pgp_key;
            } else {
                /* time for plan b */
                from = e_msg_composer_hdrs_get_from (hdrs);
                camel_internet_address_get (from, 0, NULL, &userid);
            }
            
            /* check to see if we should encrypt to self */
            if (hdrs->account && hdrs->account->pgp_encrypt_to_self && userid)
                g_ptr_array_add (recipients, g_strdup (userid));
            
            addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_TO);
            len = camel_address_length (CAMEL_ADDRESS (addr));
            for (i = 0; i < len; i++) {
                camel_internet_address_get (addr, i, NULL, &address);
                g_ptr_array_add (recipients, g_strdup (address));
            }
            
            addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_CC);
            len = camel_address_length (CAMEL_ADDRESS (addr));
            for (i = 0; i < len; i++) {
                camel_internet_address_get (addr, i, NULL, &address);
                g_ptr_array_add (recipients, g_strdup (address));
            }
            
            addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_BCC);
            len = camel_address_length (CAMEL_ADDRESS (addr));
            for (i = 0; i < len; i++) {
                camel_internet_address_get (addr, i, NULL, &address);
                g_ptr_array_add (recipients, g_strdup (address));
            }
            
            mpe = camel_multipart_encrypted_new ();
            cipher = mail_crypto_get_pgp_cipher_context (hdrs->account);
            
            camel_multipart_encrypted_encrypt (mpe, part, cipher, userid, recipients, &ex);
            camel_object_unref (cipher);
            
            if (from)
                camel_object_unref (from);
            
            for (i = 0; i < recipients->len; i++)
                g_free (recipients->pdata[i]);
            g_ptr_array_free (recipients, TRUE);
            
            /* if cancelled, just leave part as is, otherwise, replace content with the multipart */
            if (camel_exception_is_set (&ex)) {
                if (camel_exception_get_id (&ex) == CAMEL_EXCEPTION_USER_CANCEL) {
                    camel_exception_clear (&ex);
                    goto exception;
                } else {
                    camel_object_unref (mpe);
                    goto exception;
                }
            } else {
                camel_object_unref (part);
                part = camel_mime_part_new ();
                camel_multipart_set_boundary (CAMEL_MULTIPART (mpe), NULL);
                camel_medium_set_content_object (CAMEL_MEDIUM (part), (CamelDataWrapper *) mpe);
            }
            
            camel_object_unref (mpe);
        }
        
        current = camel_medium_get_content_object (CAMEL_MEDIUM (part));
        camel_object_ref (current);
        camel_object_unref (part);
    }
    
    camel_medium_set_content_object (CAMEL_MEDIUM (new), current);
    if (current == plain)
        camel_mime_part_set_encoding (CAMEL_MIME_PART (new), plain_encoding);
    camel_object_unref (current);
    
#if defined (HAVE_NSS) && defined (SMIME_SUPPORTED)
    if (composer->smime_sign) {
        CamelInternetAddress *from = NULL;
        CamelMimeMessage *smime_mesg;
        const char *certname;
        
        camel_exception_init (&ex);
        
        if (hdrs->account && hdrs->account->smime_key && *hdrs->account->smime_key) {
            certname = hdrs->account->smime_key;
        } else {
            /* time for plan b */
            from = e_msg_composer_hdrs_get_from (hdrs);
            camel_internet_address_get (from, 0, NULL, &certname);
        }
        
        smime_mesg = mail_crypto_smime_sign (new, certname, TRUE, TRUE, &ex);
        
        if (from)
            camel_object_unref (from);
        
        if (camel_exception_is_set (&ex))
            goto exception;
        
        camel_object_unref (new);
        new = smime_mesg;
    }
    
    if (composer->smime_encrypt) {
        /* FIXME: we should try to get the preferred cert "nickname" for each recipient */
        const CamelInternetAddress *addr = NULL;
        CamelInternetAddress *from = NULL;
        CamelMimeMessage *smime_mesg;
        const char *address;
        GPtrArray *recipients;
        int i, len;
        
        camel_exception_init (&ex);
        recipients = g_ptr_array_new ();
        
        /* check to see if we should encrypt to self */
        if (hdrs->account && hdrs->account->smime_encrypt_to_self) {
            if (hdrs->account && hdrs->account->smime_key && *hdrs->account->smime_key) {
                address = hdrs->account->smime_key;
            } else {
                /* time for plan b */
                from = e_msg_composer_hdrs_get_from (hdrs);
                camel_internet_address_get (from, 0, NULL, &address);
            }
            
            g_ptr_array_add (recipients, g_strdup (address));
            
            if (from)
                camel_object_unref (addr);
        }
        
        addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_TO);
        len = camel_address_length (CAMEL_ADDRESS (addr));
        for (i = 0; i < len; i++) {
            camel_internet_address_get (addr, i, NULL, &address);
            g_ptr_array_add (recipients, g_strdup (address));
        }
        
        addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_CC);
        len = camel_address_length (CAMEL_ADDRESS (addr));
        for (i = 0; i < len; i++) {
            camel_internet_address_get (addr, i, NULL, &address);
            g_ptr_array_add (recipients, g_strdup (address));
        }
        
        addr = camel_mime_message_get_recipients (new, CAMEL_RECIPIENT_TYPE_BCC);
        len = camel_address_length (CAMEL_ADDRESS (addr));
        for (i = 0; i < len; i++) {
            camel_internet_address_get (addr, i, NULL, &address);
            g_ptr_array_add (recipients, g_strdup (address));
        }
        
        from = e_msg_composer_hdrs_get_from (E_MSG_COMPOSER_HDRS (composer->hdrs));
        camel_internet_address_get (from, 0, NULL, &address);
        
        smime_mesg = mail_crypto_smime_encrypt (new, address, recipients, &ex);
        
        camel_object_unref (from);
        
        for (i = 0; i < recipients->len; i++)
            g_free (recipients->pdata[i]);
        g_ptr_array_free (recipients, TRUE);
        
        if (camel_exception_is_set (&ex))
            goto exception;
        
        camel_object_unref (new);
        new = smime_mesg;
    }
    
    /* FIXME: what about mail_crypto_smime_certsonly()?? */
    
    /* FIXME: what about mail_crypto_smime_envelope()?? */
    
#endif /* HAVE_NSS */
    
    /* Attach whether this message was written in HTML */
    camel_medium_set_header (CAMEL_MEDIUM (new), "X-Evolution-Format",
                 composer->send_html ? "text/html" : "text/plain");
    
    return new;
    
 exception:
    
    if (part != CAMEL_MIME_PART (new))
        camel_object_unref (part);
    
    camel_object_unref (new);
    
    if (camel_exception_is_set (&ex)) {
        GtkWidget *dialog;

        dialog = gtk_message_dialog_new(GTK_WINDOW(composer),
                        GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
                        GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                        "%s", camel_exception_get_description (&ex));
        gtk_dialog_run(GTK_DIALOG(dialog));
        gtk_widget_destroy(dialog);
        camel_exception_clear (&ex);
    }
    
    return NULL;
}


static char *
get_file_content (EMsgComposer *composer, const char *file_name, gboolean want_html, guint flags, gboolean warn)
{
    CamelStreamFilter *filtered_stream;
    CamelStreamMem *memstream;
    CamelMimeFilter *html, *charenc;
    CamelStream *stream;
    GByteArray *buffer;
    const char *charset;
    char *content;
    int fd;
    
    fd = open (file_name, O_RDONLY);
    if (fd == -1) {
        if (warn) {
            GtkWidget *dialog;

            dialog = gtk_message_dialog_new(GTK_WINDOW(composer),
                            GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
                            GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                            _("Error while reading file %s:\n%s"),
                            file_name, g_strerror (errno));
            gtk_dialog_run(GTK_DIALOG(dialog));
            gtk_widget_destroy(dialog);
        }
        return g_strdup ("");
    }
    
    stream = camel_stream_fs_new_with_fd (fd);
    
    if (want_html) {
        filtered_stream = camel_stream_filter_new_with_stream (stream);
        camel_object_unref (stream);
        
        html = camel_mime_filter_tohtml_new (flags, 0);
        camel_stream_filter_add (filtered_stream, html);
        camel_object_unref (html);
        
        stream = (CamelStream *) filtered_stream;
    }
    
    memstream = (CamelStreamMem *) camel_stream_mem_new ();
    buffer = g_byte_array_new ();
    camel_stream_mem_set_byte_array (memstream, buffer);
    
    camel_stream_write_to_stream (stream, (CamelStream *) memstream);
    camel_object_unref (stream);
    
    /* The newer signature UI saves signatures in UTF-8, but we still need to check that
       the signature is valid UTF-8 because it is possible that the user imported a
       signature file that is in his/her locale charset. If it's not in UTF-8 and not in
       the charset the composer is in (or their default mail charset) then fuck it,
       there's nothing we can do. */
    if (buffer->len && !g_utf8_validate (buffer->data, buffer->len, NULL)) {
        stream = (CamelStream *) memstream;
        memstream = (CamelStreamMem *) camel_stream_mem_new ();
        camel_stream_mem_set_byte_array (memstream, g_byte_array_new ());
        
        filtered_stream = camel_stream_filter_new_with_stream (stream);
        camel_object_unref (stream);
        
        charset = composer ? composer->charset : composer_get_default_charset_setting ();
        charenc = (CamelMimeFilter *) camel_mime_filter_charset_new_convert (charset, "utf-8");
        camel_stream_filter_add (filtered_stream, charenc);
        camel_object_unref (charenc);
        
        camel_stream_write_to_stream ((CamelStream *) filtered_stream, (CamelStream *) memstream);
        camel_object_unref (filtered_stream);
        g_byte_array_free (buffer, TRUE);
        
        buffer = memstream->buffer;
    }
    
    camel_object_unref (memstream);
    
    g_byte_array_append (buffer, "", 1);
    content = buffer->data;
    g_byte_array_free (buffer, FALSE);
    
    return content;
}

char *
e_msg_composer_get_sig_file_content (const char *sigfile, gboolean in_html)
{
    if (!sigfile || !*sigfile) {
        return NULL;
    }
    
    return get_file_content (NULL, sigfile, !in_html, CAMEL_MIME_FILTER_TOHTML_PRESERVE_8BIT, FALSE);
}

static void
prepare_engine (EMsgComposer *composer)
{
    CORBA_Environment ev;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    /* printf ("prepare_engine\n"); */
    
    CORBA_exception_init (&ev);
    composer->editor_engine = (GNOME_GtkHTML_Editor_Engine) Bonobo_Unknown_queryInterface
        (bonobo_widget_get_objref (BONOBO_WIDGET (composer->editor)), "IDL:GNOME/GtkHTML/Editor/Engine:1.0", &ev);
    if ((composer->editor_engine != CORBA_OBJECT_NIL) && (ev._major == CORBA_NO_EXCEPTION)) {
        
        /* printf ("trying set listener\n"); */
        composer->editor_listener = BONOBO_OBJECT (listener_new (composer));
        if (composer->editor_listener != NULL)
            GNOME_GtkHTML_Editor_Engine__set_listener (composer->editor_engine,
                                   (GNOME_GtkHTML_Editor_Listener)
                                   bonobo_object_dup_ref
                                   (bonobo_object_corba_objref (composer->editor_listener),
                                    &ev),
                                   &ev);
        
        if ((ev._major != CORBA_NO_EXCEPTION) || (composer->editor_listener == NULL)) {
            CORBA_Environment err_ev;

            CORBA_exception_init (&err_ev);
            
            Bonobo_Unknown_unref (composer->editor_engine, &err_ev);
            CORBA_Object_release (composer->editor_engine, &err_ev);

            CORBA_exception_free (&err_ev);

            composer->editor_engine = CORBA_OBJECT_NIL;
            g_warning ("Can't establish Editor Listener\n");
        }
    } else {
        composer->editor_engine = CORBA_OBJECT_NIL;
        g_warning ("Can't get Editor Engine\n");
    }

    CORBA_exception_free (&ev);
}

static gchar *
encode_signature_name (const gchar *name)
{
    const gchar *s;
    gchar *ename, *e;
    gint len = 0;

    s = name;
    while (*s) {
        len ++;
        if (*s == '"' || *s == '.' || *s == '=')
            len ++;
        s ++;
    }

    ename = g_new (gchar, len + 1);

    s = name;
    e = ename;
    while (*s) {
        if (*s == '"') {
            *e = '.';
            e ++;
            *e = '1';
            e ++;
        } else if (*s == '=') {
            *e = '.';
            e ++;
            *e = '2';
            e ++;
        } else {
            *e = *s;
            e ++;
        }
        if (*s == '.') {
            *e = '.';
            e ++;
        }
        s ++;
    }
    *e = 0;
    
    return ename;
}

static gchar *
decode_signature_name (const gchar *name)
{
    const gchar *s;
    gchar *dname, *d;
    gint len = 0;

    s = name;
    while (*s) {
        len ++;
        if (*s == '.') {
            s ++;
            if (!*s || !(*s == '.' || *s == '1' || *s == '2'))
                return NULL;
        }
        s ++;
    }

    dname = g_new (gchar, len + 1);

    s = name;
    d = dname;
    while (*s) {
        if (*s == '.') {
            s ++;
            if (!*s || !(*s == '.' || *s == '1' || *s == '2')) {
                g_free (dname);
                return NULL;
            }
            if (*s == '1')
                *d = '"';
            else if (*s == '2')
                *d = '=';
            else
                *d = '.';
        } else
            *d = *s;
        d ++;
        s ++;
    }
    *d = 0;

    return dname;
}

#define CONVERT_SPACES CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES

static char *
get_signature_html (EMsgComposer *composer)
{
    gboolean format_html = FALSE;
    char *text = NULL, *html = NULL, *sig_file = NULL, *script = NULL;
    
    if (composer->signature) {
        sig_file = composer->signature->filename;
        format_html = composer->signature->html;
        script = composer->signature->script;
    } else if (composer->auto_signature) {
        EAccountIdentity *id;
        char *organization;
        char *address;
        char *name;
        
        id = E_MSG_COMPOSER_HDRS (composer->hdrs)->account->id;
        address = id->address ? camel_text_to_html (id->address, CONVERT_SPACES, 0) : NULL;
        name = id->name ? camel_text_to_html (id->name, CONVERT_SPACES, 0) : NULL;
        organization = id->organization ? camel_text_to_html (id->organization, CONVERT_SPACES, 0) : NULL;
        
        text = g_strdup_printf ("-- <BR>%s%s%s%s%s%s%s%s",
                    name ? name : "",
                    (address && *address) ? " &lt;<A HREF=\"mailto:" : "",
                    address ? address : "",
                    (address && *address) ? "\">" : "",
                    address ? address : "",
                    (address && *address) ? "</A>&gt;" : "",
                    (organization && *organization) ? "<BR>" : "",
                    organization ? organization : "");
        g_free (address);
        g_free (name);
        g_free (organization);
        format_html = TRUE;
    }

    if (!text) {
        if (script)
            text = mail_config_signature_run_script (script);
        else {
            if (!sig_file)
                return NULL;
            /* printf ("sig file: %s\n", sig_file); */
            text = e_msg_composer_get_sig_file_content (sig_file, format_html);
        }
    }

    /* printf ("text: %s\n", text); */
    if (text) {
        gchar *encoded_name = NULL;

        if (composer->signature)
            encoded_name = encode_signature_name (composer->signature->name);

        /* The signature dash convention ("-- \n") is specified in the
         * "Son of RFC 1036": http://www.chemie.fu-berlin.de/outerspace/netnews/son-of-1036.html,
         * section 4.3.2.
         */
        html = g_strdup_printf ("<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature\" value=\"1\">-->"
                    "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature_name\" value=\"%s%s\">-->"
                    "<TABLE WIDTH=\"100%%\" CELLSPACING=\"0\" CELLPADDING=\"0\"><TR><TD>"
                    "%s%s%s%s"
                    "</TD></TR></TABLE>",
                    composer->signature ? "name:" : "auto",
                    composer->signature ? encoded_name : "",
                    format_html ? "" : "<PRE>\n",
                    format_html || (!strncmp ("-- \n", text, 4) || strstr(text, "\n-- \n")) ? "" : "-- \n",
                    text,
                    format_html ? "" : "</PRE>\n");
        g_free (text);
        g_free (encoded_name);
        text = html;
    }
    
    return text;
}

static void
set_editor_text (EMsgComposer *composer, const char *text)
{
    Bonobo_PersistStream persist;
    BonoboStream *stream;
    BonoboWidget *editor;
    CORBA_Environment ev;
    Bonobo_Unknown object;
    
    g_return_if_fail (composer->persist_stream_interface != CORBA_OBJECT_NIL);
    
    persist = composer->persist_stream_interface;
    
    editor = BONOBO_WIDGET (composer->editor);
    
    CORBA_exception_init (&ev);
    
    stream = bonobo_stream_mem_create (text, strlen (text), TRUE, FALSE);
    object = bonobo_object_corba_objref (BONOBO_OBJECT (stream));
    Bonobo_PersistStream_load (persist, (Bonobo_Stream) object, "text/html", &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        /* FIXME. Some error message. */
        bonobo_object_unref (BONOBO_OBJECT (stream));
        CORBA_exception_free (&ev);
        return;
    }
    
    CORBA_exception_free (&ev);
    
    bonobo_object_unref (BONOBO_OBJECT (stream));
}

/* Commands.  */

static void
show_attachments (EMsgComposer *composer,
          gboolean show)
{
    if (show) {
        gtk_widget_show (composer->attachment_scrolled_window);
        gtk_widget_show (composer->attachment_bar);
    } else {
        gtk_widget_hide (composer->attachment_scrolled_window);
        gtk_widget_hide (composer->attachment_bar);
    }
    
    composer->attachment_bar_visible = show;
    
    /* Update the GUI.  */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/ViewAttach",
        "state", show ? "1" : "0", NULL);
}

static void
save (EMsgComposer *composer, const char *file_name)
{
    CORBA_Environment ev;
    char *my_file_name;
    int fd;
    
    if (file_name != NULL)
        my_file_name = g_strdup (file_name);
    else
        my_file_name = e_msg_composer_select_file (composer, _("Save as..."));
    
    if (my_file_name == NULL)
        return;
    
    /* check to see if we already have the file */
    if ((fd = open (my_file_name, O_RDONLY | O_CREAT | O_EXCL, 0777)) == -1) {
        GtkWidget *dialog;
        int resp;

        dialog = gtk_message_dialog_new(GTK_WINDOW(composer),
                        GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
                        GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO,
                        _("File exists, overwrite?"));
        resp = gtk_dialog_run(GTK_DIALOG(dialog));
        gtk_widget_destroy(dialog);
        if (resp != GTK_RESPONSE_YES) {
            g_free(my_file_name);
            return;
        }
    } else
        close (fd);
    
    CORBA_exception_init (&ev);
    
    Bonobo_PersistFile_save (composer->persist_file_interface, my_file_name, &ev);
    
    if (ev._major != CORBA_NO_EXCEPTION) {
        char *tmp = g_path_get_basename(my_file_name);

        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Error saving file: %s"), tmp);
        g_free(tmp);
    } else
        GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "saved", &ev);

    CORBA_exception_free (&ev);
    
    g_free (my_file_name);
}

static void
load (EMsgComposer *composer, const char *file_name)
{
    CORBA_Environment ev;
    
    CORBA_exception_init (&ev);
    
    Bonobo_PersistFile_load (composer->persist_file_interface, file_name, &ev);
    
    if (ev._major != CORBA_NO_EXCEPTION) {
        char *tmp = g_path_get_basename(file_name);

        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Error loading file: %s"), tmp);
        g_free(tmp);
    }
    
    CORBA_exception_free (&ev);
}

#define AUTOSAVE_SEED ".evolution-composer.autosave-XXXXXX"
#define AUTOSAVE_INTERVAL 60000

typedef struct _AutosaveManager AutosaveManager;
struct _AutosaveManager {
    GHashTable *table;
    guint id;
    gboolean ask;
};

static AutosaveManager *am = NULL;
static void autosave_manager_start (AutosaveManager *am);
static void autosave_manager_stop (AutosaveManager *am);

static gboolean
autosave_save_draft (EMsgComposer *composer)
{
    CamelMimeMessage *message;
    CamelStream *stream;
    char *file;
    int fd, camelfd;
    gboolean success = TRUE;
    
    if (!e_msg_composer_is_dirty (composer))
        return TRUE;
    
    fd = composer->autosave_fd;
    file = composer->autosave_file;
    
    if (fd == -1) {
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Error accessing file: %s"), file);
        return FALSE;
    }
    
    message = e_msg_composer_get_message_draft (composer);
    
    if (message == NULL) {
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Unable to retrieve message from editor"));
        return FALSE;
    }
    
    if (lseek (fd, (off_t)0, SEEK_SET) == -1) {
        camel_object_unref (message);
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Unable to seek on file: %s\n%s"), file, g_strerror (errno));
        return FALSE;
    }
    
    if (ftruncate (fd, (off_t)0) == -1) {
        camel_object_unref (message);
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Unable to truncate file: %s\n%s"), file, g_strerror (errno));
        return FALSE;
    }

    /* dup the fd because we dont want camel to close it when done */
    camelfd = dup(fd);
    if (fd == -1) {
        camel_object_unref (message);
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Unable to copy file descriptor: %s\n%s"), file, g_strerror (errno));
        return FALSE;
    }
    
    /* this does an lseek so we don't have to */
    stream = camel_stream_fs_new_with_fd (camelfd);
    if (camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (message), stream) == -1
        || camel_stream_close (CAMEL_STREAM (stream)) == -1) {
        e_notice (composer, GTK_MESSAGE_ERROR,
              _("Error autosaving message: %s\n %s"), file, strerror(errno));
        
        success = FALSE;
    }
    
    camel_object_unref (stream);
    
    camel_object_unref (message);
    
    return success;
}

static EMsgComposer * 
autosave_load_draft (const char *filename)
{
    CamelStream *stream;
    CamelMimeMessage *msg;
    EMsgComposer *composer;
    
    g_return_val_if_fail (filename != NULL, NULL);
    
    g_warning ("autosave load filename = \"%s\"", filename);
        
    stream = camel_stream_fs_new_with_name (filename, O_RDONLY, 0);
    
    if (stream == NULL) 
        return NULL;
        
    msg = camel_mime_message_new ();
    camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), stream);
    unlink (filename);
    
    composer = e_msg_composer_new_with_message (msg);
    if (composer) {
        autosave_save_draft (composer);
        
        g_signal_connect (GTK_OBJECT (composer), "send",
                  G_CALLBACK (composer_send_cb), NULL);
        
        g_signal_connect (GTK_OBJECT (composer), "save-draft",
                  G_CALLBACK (composer_save_draft_cb), NULL);
        
        gtk_widget_show (GTK_WIDGET (composer));
    }
    
    camel_object_unref (stream);
    return composer;
}

static gboolean
autosave_is_owned (AutosaveManager *am, const char *file)
{
        return g_hash_table_lookup (am->table, file) != NULL;
}

static void
autosave_manager_query_load_orphans (AutosaveManager *am, GtkWindow *parent)
{
    DIR *dir;
    struct dirent *d;
    GSList *match = NULL;
    gint len = strlen (AUTOSAVE_SEED);
    gint load = FALSE;
    
    dir = opendir (g_get_home_dir());
    if (!dir) {
        return;
    }
    
    while ((d = readdir (dir))) {
        if ((!strncmp (d->d_name, AUTOSAVE_SEED, len - 6))
            && (strlen (d->d_name) == len)
            && (!autosave_is_owned (am, d->d_name))) {
            char *filename =  g_strdup_printf ("%s/%s", g_get_home_dir(), d->d_name);
            struct stat st;
        
            /*
             * check if the file has any length,  It is a valid case if it doesn't 
             * so we simply don't ask then.
             */
            if (stat (filename, &st) == -1 || st.st_size == 0) {
                unlink (filename);
                g_free (filename);
                continue;
            }
            match = g_slist_prepend (match, filename);              
        }
    }
    
    closedir (dir);
    
    if (match != NULL) {
        GtkWidget *dialog;

        dialog = gtk_message_dialog_new(parent,
                        GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
                        GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO,
                        _("Ximian Evolution has found unsaved files from a previous session.\n"
                          "Would you like to try to recover them?"));
        load = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_YES;
        gtk_widget_destroy(dialog);
    }
    
    while (match != NULL) {
        GSList *next = match->next;
        char *filename = match->data;
        EMsgComposer *composer;
        
        if (load) { 
            composer = autosave_load_draft (filename);
        } else {
            unlink (filename);
        }
            
        g_free (filename);
        g_slist_free_1 (match);
        match = next;
    }           
}

static void
autosave_run_foreach_cb (gpointer key, gpointer value, gpointer data)
{
    EMsgComposer *composer = E_MSG_COMPOSER (value);
    
    if (composer->enable_autosave)
        autosave_save_draft (composer);
}

static gint
autosave_run (gpointer data)
{
    AutosaveManager *am = data;
    
    g_hash_table_foreach (am->table, (GHFunc)autosave_run_foreach_cb, am);

    autosave_manager_stop (am);
    autosave_manager_start (am);
    
    return FALSE;
}

static gboolean
autosave_init_file (EMsgComposer *composer)
{
    if (composer->autosave_file == NULL) {
        composer->autosave_file = g_strdup_printf ("%s/%s", g_get_home_dir(), AUTOSAVE_SEED);
        composer->autosave_fd = mkstemp (composer->autosave_file);
        return TRUE;
    }
    return FALSE;
}

static void
autosave_manager_start (AutosaveManager *am)
{
    if (am->id == 0)
        am->id = gtk_timeout_add (AUTOSAVE_INTERVAL, autosave_run, am);
}

static void
autosave_manager_stop (AutosaveManager *am)
{
    if (am->id) {
        gtk_timeout_remove (am->id);
        am->id = 0;
    }
}

static AutosaveManager *
autosave_manager_new ()
{
    AutosaveManager *am;
    
    am = g_new (AutosaveManager, 1);
    am->table = g_hash_table_new (g_str_hash, g_str_equal);
    am->id = 0;
    am->ask = TRUE;
    
    return am;
}

static void
autosave_manager_register (AutosaveManager *am, EMsgComposer *composer) 
{
    char *key;
    
    g_return_if_fail (composer != NULL);
    
    if (autosave_init_file (composer)) {
        key = g_path_get_basename (composer->autosave_file);
        g_hash_table_insert (am->table, key, composer);
        if (am->ask) {
            /* keep recursion out of our bedrooms. */
            am->ask = FALSE;
            autosave_manager_query_load_orphans (am, (GtkWindow *)composer);
            am->ask = TRUE;
        }
    }
    autosave_manager_start (am);
}

static void
autosave_manager_unregister (AutosaveManager *am, EMsgComposer *composer) 
{
    char *key, *oldkey;
    void *olddata;

    if (!composer->autosave_file)
        return;

    key = g_path_get_basename(composer->autosave_file);
    if (g_hash_table_lookup_extended(am->table, key, (void **)&oldkey, &olddata)) {
        g_hash_table_remove(am->table, oldkey);
        g_free(oldkey);
        g_free(key);
    }
    
    /* only remove the file if we can successfully save it */
    /* FIXME this test could probably be more efficient */
    if (autosave_save_draft (composer)) {
        unlink (composer->autosave_file);
    }
    close (composer->autosave_fd);
    g_free (composer->autosave_file);
    composer->autosave_file = NULL;
    
    if (g_hash_table_size (am->table) == 0)
        autosave_manager_stop (am);
}

static void
menu_file_save_draft_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    g_signal_emit (data, signals[SAVE_DRAFT], 0, FALSE);
    e_msg_composer_unset_changed (E_MSG_COMPOSER (data));
}

/* Exit dialog.  (Displays a "Save composition to 'Drafts' before exiting?" warning before actually exiting.)  */

static void
do_exit (EMsgComposer *composer)
{
    const char *subject;
    GtkWidget *dialog;
    int button;
    
    if (!e_msg_composer_is_dirty (composer)) {
        gtk_widget_destroy (GTK_WIDGET (composer));
        return;
    }
    
    gdk_window_raise (GTK_WIDGET (composer)->window);
    
    subject = e_msg_composer_hdrs_get_subject (E_MSG_COMPOSER_HDRS (composer->hdrs));
    
    dialog = gtk_message_dialog_new (GTK_WINDOW (composer),
                     GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                     GTK_MESSAGE_ERROR, GTK_BUTTONS_NONE,
                     _("The message \"%s\" has not been sent.\n\n"
                       "Do you wish to save your changes?"),
                     subject);
    
    gtk_dialog_add_buttons (GTK_DIALOG (dialog),
                _("_Discard Changes"), GTK_RESPONSE_NO,
                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                GTK_STOCK_SAVE, GTK_RESPONSE_YES,
                NULL);
    gtk_window_set_title (GTK_WINDOW (dialog), _("Warning: Modified Message"));
    gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_YES);
    button = gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);
    
    switch (button) {
    case GTK_RESPONSE_YES:
        /* Save */
        g_signal_emit (GTK_OBJECT (composer), signals[SAVE_DRAFT], 0, TRUE);
        e_msg_composer_unset_changed (composer);
        break;
    case GTK_RESPONSE_NO:
        /* Don't save */
        gtk_widget_destroy (GTK_WIDGET (composer));
        break;
    case GTK_RESPONSE_CANCEL:
        break;
    }
}

/* Menu callbacks.  */

static void
menu_file_open_cb (BonoboUIComponent *uic,
           void *data,
           const char *path)
{
    EMsgComposer *composer;
    char *file_name;
    
    composer = E_MSG_COMPOSER (data);
    
    file_name = e_msg_composer_select_file (composer, _("Open file"));
    if (file_name == NULL)
        return;
    
    load (composer, file_name);
    
    g_free (file_name);
}

static void
menu_file_save_cb (BonoboUIComponent *uic,
           void *data,
           const char *path)
{
    EMsgComposer *composer;
    CORBA_char *file_name;
    CORBA_Environment ev;
    
    composer = E_MSG_COMPOSER (data);
    
    CORBA_exception_init (&ev);
    
    file_name = Bonobo_PersistFile_getCurrentFile (composer->persist_file_interface, &ev);
    
    if (ev._major != CORBA_NO_EXCEPTION) {
        save (composer, NULL);
    } else {
        save (composer, file_name);
        CORBA_free (file_name);
    }
        CORBA_exception_free (&ev);
}

static void
menu_file_save_as_cb (BonoboUIComponent *uic,
              void *data,
              const char *path)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    
    save (composer, NULL);
}

static void
menu_file_send_cb (BonoboUIComponent *uic,
           void *data,
           const char *path)
{
    g_signal_emit (GTK_OBJECT (data), signals[SEND], 0);
}

static void
menu_file_close_cb (BonoboUIComponent *uic,
            void *data,
            const char *path)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    do_exit (composer);
}
    
static void
menu_file_add_attachment_cb (BonoboUIComponent *uic,
                 void *data,
                 const char *path)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    
    e_msg_composer_attachment_bar_attach
        (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
         NULL);
}

static void
menu_edit_cut_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    EMsgComposer *composer = data;
    
    g_return_if_fail (composer->focused_entry != NULL);
    
    if (GTK_IS_ENTRY (composer->focused_entry)) {
        gtk_editable_cut_clipboard (GTK_EDITABLE (composer->focused_entry));
    } else {
        /* happy happy joy joy, an EEntry. */
        g_assert_not_reached ();
    }
}

static void
menu_edit_copy_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    EMsgComposer *composer = data;
    
    g_return_if_fail (composer->focused_entry != NULL);
    
    if (GTK_IS_ENTRY (composer->focused_entry)) {
        gtk_editable_copy_clipboard (GTK_EDITABLE (composer->focused_entry));
    } else {
        /* happy happy joy joy, an EEntry. */
        g_assert_not_reached ();
    }
}

static void
menu_edit_paste_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    EMsgComposer *composer = data;
    
    g_return_if_fail (composer->focused_entry != NULL);
    
    if (GTK_IS_ENTRY (composer->focused_entry)) {
        gtk_editable_paste_clipboard (GTK_EDITABLE (composer->focused_entry));
    } else {
        /* happy happy joy joy, an EEntry. */
        g_assert_not_reached ();
    }
}

static void
menu_edit_select_all_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    EMsgComposer *composer = data;
    
    g_return_if_fail (composer->focused_entry != NULL);
    
    if (GTK_IS_ENTRY (composer->focused_entry)) {
        gtk_editable_set_position (GTK_EDITABLE (composer->focused_entry), -1);
        gtk_editable_select_region (GTK_EDITABLE (composer->focused_entry), 0, -1);
    } else {
        /* happy happy joy joy, an EEntry. */
        g_assert_not_reached ();
    }
}

static void
menu_edit_delete_all_cb (BonoboUIComponent *uic, void *data, const char *path)
{
    CORBA_Environment ev;
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    CORBA_exception_init (&ev);
    
    GNOME_GtkHTML_Editor_Engine_undoBegin (composer->editor_engine, "Delete all but signature", "Undelete all", &ev);
    GNOME_GtkHTML_Editor_Engine_freeze (composer->editor_engine, &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "disable-selection", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "text-default-color", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "bold-off", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "italic-off", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "underline-off", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "strikeout-off", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "select-all", &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "delete", &ev);
    GNOME_GtkHTML_Editor_Engine_setParagraphData (composer->editor_engine, "signature", "0", &ev);
    GNOME_GtkHTML_Editor_Engine_setParagraphData (composer->editor_engine, "orig", "0", &ev);
    e_msg_composer_show_sig_file (composer);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "style-normal", &ev);
    GNOME_GtkHTML_Editor_Engine_thaw (composer->editor_engine, &ev);
    GNOME_GtkHTML_Editor_Engine_undoEnd (composer->editor_engine, &ev);
    
    CORBA_exception_free (&ev);
    /* printf ("delete all\n"); */
}

static void
menu_view_attachments_activate_cb (BonoboUIComponent           *component,
                   const char                  *path,
                   Bonobo_UIComponent_EventType type,
                   const char                  *state,
                   gpointer                     user_data)

{
    gboolean new_state;
    
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    new_state = atoi (state);
    
    e_msg_composer_show_attachments (E_MSG_COMPOSER (user_data), new_state);
}

static void
menu_format_html_cb (BonoboUIComponent           *component,
             const char                  *path,
             Bonobo_UIComponent_EventType type,
             const char                  *state,
             gpointer                     user_data)

{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_send_html (E_MSG_COMPOSER (user_data), atoi (state));
}

static void
menu_security_pgp_sign_cb (BonoboUIComponent           *component,
               const char                  *path,
               Bonobo_UIComponent_EventType type,
               const char                  *state,
               gpointer                     composer)

{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_pgp_sign (E_MSG_COMPOSER (composer), atoi (state));
}

static void
menu_security_pgp_encrypt_cb (BonoboUIComponent           *component,
                  const char                  *path,
                  Bonobo_UIComponent_EventType type,
                  const char                  *state,
                  gpointer                     composer)

{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_pgp_encrypt (E_MSG_COMPOSER (composer), atoi (state));
}

static void
menu_security_smime_sign_cb (BonoboUIComponent           *component,
                 const char                  *path,
                 Bonobo_UIComponent_EventType type,
                 const char                  *state,
                 gpointer                     composer)

{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_smime_sign (E_MSG_COMPOSER (composer), atoi (state));
}

static void
menu_security_smime_encrypt_cb (BonoboUIComponent           *component,
                const char                  *path,
                Bonobo_UIComponent_EventType type,
                const char                  *state,
                gpointer                     composer)

{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_smime_encrypt (E_MSG_COMPOSER (composer), atoi (state));
}


static void
menu_view_from_cb (BonoboUIComponent           *component,
           const char                  *path,
           Bonobo_UIComponent_EventType type,
           const char                  *state,
           gpointer                     user_data)
{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_view_from (E_MSG_COMPOSER (user_data), atoi (state));
}

static void
menu_view_replyto_cb (BonoboUIComponent           *component,
              const char                  *path,
              Bonobo_UIComponent_EventType type,
              const char                  *state,
              gpointer                     user_data)
{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_view_replyto (E_MSG_COMPOSER (user_data), atoi (state));
}

static void
menu_view_cc_cb (BonoboUIComponent           *component,
         const char                  *path,
         Bonobo_UIComponent_EventType type,
         const char                  *state,
         gpointer                     user_data)
{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_view_cc (E_MSG_COMPOSER (user_data), atoi (state));
}

static void
menu_view_bcc_cb (BonoboUIComponent           *component,
          const char                  *path,
          Bonobo_UIComponent_EventType type,
          const char                  *state,
          gpointer                     user_data)
{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    e_msg_composer_set_view_bcc (E_MSG_COMPOSER (user_data), atoi (state));
}

static void
menu_changed_charset_cb (BonoboUIComponent           *component,
             const char                  *path,
             Bonobo_UIComponent_EventType type,
             const char                  *state,
             gpointer                     user_data)
{
    if (type != Bonobo_UIComponent_STATE_CHANGED)
        return;
    
    if (atoi (state)) {
        /* Charset menu names are "Charset-%s" where %s is the charset name */
        g_free (E_MSG_COMPOSER (user_data)->charset);
        E_MSG_COMPOSER (user_data)->charset = g_strdup (path + strlen ("Charset-"));
    }
}


static BonoboUIVerb verbs [] = {

    BONOBO_UI_VERB ("FileOpen", menu_file_open_cb),
    BONOBO_UI_VERB ("FileSave", menu_file_save_cb),
    BONOBO_UI_VERB ("FileSaveAs", menu_file_save_as_cb),
    BONOBO_UI_VERB ("FileSaveDraft", menu_file_save_draft_cb),
    BONOBO_UI_VERB ("FileClose", menu_file_close_cb),
    
    BONOBO_UI_VERB ("FileAttach", menu_file_add_attachment_cb),
    
    BONOBO_UI_VERB ("FileSend", menu_file_send_cb),
    
    BONOBO_UI_VERB ("EditCut", menu_edit_cut_cb),
    BONOBO_UI_VERB ("EditCopy", menu_edit_copy_cb),
    BONOBO_UI_VERB ("EditPaste", menu_edit_paste_cb),
    BONOBO_UI_VERB ("SelectAll", menu_edit_select_all_cb),
    
    BONOBO_UI_VERB ("DeleteAll", menu_edit_delete_all_cb),
    
    BONOBO_UI_VERB_END
};

static EPixmap pixcache [] = {
    E_PIXMAP ("/Toolbar/FileAttach", "buttons/add-attachment.png"),
    E_PIXMAP ("/Toolbar/FileSend", "buttons/send-24.png"),
    
/*  E_PIXMAP ("/menu/Insert/FileAttach", "buttons/add-attachment.png"), */
    E_PIXMAP ("/commands/FileSend", "send-16.png"),
    E_PIXMAP ("/commands/FileSave", "save-16.png"),
    E_PIXMAP ("/commands/FileSaveAs", "save-as-16.png"),
    
    E_PIXMAP_END
};

static void sig_select_item (EMsgComposer *composer);

static void
signature_cb (GtkWidget *w, EMsgComposer *composer)
{
    MailConfigSignature *old_sig;
    gboolean old_auto;
    int idx = g_list_index (GTK_MENU_SHELL (w)->children, gtk_menu_get_active (GTK_MENU (w)));
    int len = g_list_length (GTK_MENU_SHELL (w)->children);
    
    /* printf ("signature_cb: %d\n", idx); */
    
    old_sig = composer->signature;
    old_auto = composer->auto_signature;
    
    if (idx < len) {
        if (idx == 0) {                         /* none */
            composer->signature = NULL;
            composer->auto_signature = FALSE;
        } else if (idx == 1) {              /* auto */
            composer->signature = NULL;
            composer->auto_signature = TRUE;
        } else {
            composer->signature = g_slist_nth_data (mail_config_get_signature_list (), idx - 2);
            composer->auto_signature = FALSE;
        }
        if (old_sig != composer->signature || old_auto != composer->auto_signature)
            e_msg_composer_show_sig_file (composer);
    }
    /* printf ("signature_cb end\n"); */
}

static void setup_signatures_menu (EMsgComposer *composer);

static void
sig_event_client (MailConfigSigEvent event, MailConfigSignature *sig, EMsgComposer *composer)
{
    switch (event) {
    case MAIL_CONFIG_SIG_EVENT_DELETED:
        if (sig == composer->signature) {
            composer->signature = NULL;
            composer->auto_signature = TRUE;
            e_msg_composer_show_sig_file (composer);
        }
        setup_signatures_menu (composer);
        break;
    case MAIL_CONFIG_SIG_EVENT_ADDED:
    case MAIL_CONFIG_SIG_EVENT_NAME_CHANGED:
        setup_signatures_menu (composer);
    default:
        ;
    }
}

static void
prepare_signatures_menu (EMsgComposer *composer)
{
    GtkWidget *hbox;
    GtkWidget *label;
    
    hbox = e_msg_composer_hdrs_get_from_hbox (E_MSG_COMPOSER_HDRS (composer->hdrs));
    
    label = gtk_label_new (_("Signature:"));
    gtk_widget_show (label);
    
    composer->sig_omenu = gtk_option_menu_new ();
    gtk_widget_show (composer->sig_omenu);
    
    gtk_box_pack_end_defaults (GTK_BOX (hbox), composer->sig_omenu);
    gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, TRUE, 0);
}

static void
sig_select_item (EMsgComposer *composer)
{
    int idx;
    
    if (composer->auto_signature) {
        idx = 1;
    } else if (composer->signature == NULL) {
        idx = 0;
    } else {
        idx = composer->signature->id + 2;
    }
    
    gtk_option_menu_set_history (GTK_OPTION_MENU (composer->sig_omenu), idx);
}

static void
setup_signatures_menu (EMsgComposer *composer)
{
    GtkWidget *menu;
    GtkWidget *mi;
    GSList *node;
    
#define ADD(x) \
    mi = (x ? gtk_menu_item_new_with_label (x) : gtk_menu_item_new ()); \
    gtk_widget_show (mi); \
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);
    
    menu = gtk_menu_new ();
    ADD (_("None"));
    ADD (_("Autogenerated"));
    
    node = mail_config_get_signature_list ();
    while (node != NULL) {
        ADD (((MailConfigSignature *) node->data)->name);
        node = node->next;
    }
#undef ADD
    
    gtk_widget_show (menu);
    gtk_option_menu_set_menu (GTK_OPTION_MENU (composer->sig_omenu), menu);
    sig_select_item (composer);
    
    g_signal_connect (menu, "selection-done", (GCallback)signature_cb, composer);
}

static void
setup_ui (EMsgComposer *composer)
{
    BonoboUIContainer *container;
    const char *default_charset;
    gboolean hide_smime;
    
    container = bonobo_window_get_ui_container (BONOBO_WINDOW (composer));
    
    composer->uic = bonobo_ui_component_new_default ();
    /* FIXME: handle bonobo exceptions */
    bonobo_ui_component_set_container (composer->uic, bonobo_object_corba_objref (BONOBO_OBJECT (container)), NULL);
    
    bonobo_ui_component_add_verb_list_with_data (composer->uic, verbs, composer);
    
    bonobo_ui_component_freeze (composer->uic, NULL);
    
    bonobo_ui_util_set_ui (composer->uic, PREFIX,
                   EVOLUTION_UIDIR "/evolution-message-composer.xml",
                   "evolution-message-composer", NULL);
    
    e_pixmaps_update (composer->uic, pixcache);
    
    /* Populate the Charset Encoding menu and default it to whatever the user
       chose as his default charset in the mailer */
    default_charset = composer_get_default_charset_setting ();
    e_charset_picker_bonobo_ui_populate (composer->uic, "/menu/Edit/EncodingPlaceholder",
                         default_charset,
                         menu_changed_charset_cb,
                         composer);
    
    /* Format -> HTML */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/FormatHtml",
        "state", composer->send_html ? "1" : "0", NULL);
    bonobo_ui_component_add_listener (
        composer->uic, "FormatHtml",
        menu_format_html_cb, composer);
    
    /* View/From */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/ViewFrom",
        "state", composer->view_from ? "1" : "0", NULL);
    bonobo_ui_component_add_listener (
        composer->uic, "ViewFrom",
        menu_view_from_cb, composer);
    
    /* View/ReplyTo */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/ViewReplyTo",
        "state", composer->view_replyto ? "1" : "0", NULL);
    bonobo_ui_component_add_listener (
        composer->uic, "ViewReplyTo",
        menu_view_replyto_cb, composer);
    
    /* View/CC */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/ViewCC",
        "state", composer->view_cc ? "1" : "0", NULL);
    bonobo_ui_component_add_listener (
        composer->uic, "ViewCC",
        menu_view_cc_cb, composer);
    
    /* View/BCC */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/ViewBCC",
        "state", composer->view_bcc ? "1" : "0", NULL);
    bonobo_ui_component_add_listener (
        composer->uic, "ViewBCC",
        menu_view_bcc_cb, composer);
    
    /* Security -> PGP Sign */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecurityPGPSign",
        "state", composer->pgp_sign ? "1" : "0", NULL);
    
    bonobo_ui_component_add_listener (
        composer->uic, "SecurityPGPSign",
        menu_security_pgp_sign_cb, composer);
    
    /* Security -> PGP Encrypt */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecurityPGPEncrypt",
        "state", composer->pgp_encrypt ? "1" : "0", NULL);
    
    bonobo_ui_component_add_listener (
        composer->uic, "SecurityPGPEncrypt",
        menu_security_pgp_encrypt_cb, composer);
    
#if defined(HAVE_NSS) && defined(SMIME_SUPPORTED)
    hide_smime = FALSE;
#else
    hide_smime = TRUE;
#endif
    
    /* Security -> S/MIME Sign */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecuritySMimeSign",
        "state", composer->smime_sign ? "1" : "0", NULL);
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecuritySMimeSign",
        "hidden", hide_smime ? "1" : "0", NULL);
    
    bonobo_ui_component_add_listener (
        composer->uic, "SecuritySMimeSign",
        menu_security_smime_sign_cb, composer);
    
    /* Security -> S/MIME Encrypt */
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecuritySMimeEncrypt",
        "state", composer->smime_encrypt ? "1" : "0", NULL);
    bonobo_ui_component_set_prop (
        composer->uic, "/commands/SecuritySMimeEncrypt",
        "hidden", hide_smime ? "1" : "0", NULL);
    
    bonobo_ui_component_add_listener (
        composer->uic, "SecuritySMimeEncrypt",
        menu_security_smime_encrypt_cb, composer);
    
    /* View -> Attachments */
    bonobo_ui_component_add_listener (
        composer->uic, "ViewAttach",
        menu_view_attachments_activate_cb, composer);
    
    mail_config_signature_register_client ((MailConfigSignatureClient) sig_event_client, composer);
    
    bonobo_ui_component_thaw (composer->uic, NULL);
}


/* Miscellaneous callbacks.  */

static void
attachment_bar_changed_cb (EMsgComposerAttachmentBar *bar,
               void *data)
{
    EMsgComposer *composer;
    gboolean show = FALSE;
    
    composer = E_MSG_COMPOSER (data);
    
    if (e_msg_composer_attachment_bar_get_num_attachments (bar) > 0)
        show = TRUE;
    
    e_msg_composer_show_attachments (composer, show);
    
    /* Mark the composer as changed so it prompts about unsaved
           changes on close */
    e_msg_composer_set_changed (composer);
}

static void
subject_changed_cb (EMsgComposerHdrs *hdrs,
            gchar *subject,
            void *data)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    
    gtk_window_set_title (GTK_WINDOW (composer), subject[0] ? subject : _("Compose a message"));
}

static void
hdrs_changed_cb (EMsgComposerHdrs *hdrs,
         void *data)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    
    /* Mark the composer as changed so it prompts about unsaved changes on close */
    e_msg_composer_set_changed (composer);
}

enum {
    UPDATE_AUTO_CC,
    UPDATE_AUTO_BCC,
};

static void
update_auto_recipients (EMsgComposerHdrs *hdrs, int mode, const char *auto_addrs)
{
    EDestination *dest, **destv = NULL;
    CamelInternetAddress *iaddr;
    GList *list, *tail, *node;
    int i, n = 0;
    
    tail = list = NULL;
    
    if (auto_addrs) {
        iaddr = camel_internet_address_new ();
        if (camel_address_decode (CAMEL_ADDRESS (iaddr), auto_addrs) != -1) {
            for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                const char *name, *addr;
                
                if (!camel_internet_address_get (iaddr, i, &name, &addr))
                    continue;
                
                dest = e_destination_new ();
                e_destination_set_auto_recipient (dest, TRUE);
                
                if (name)
                    e_destination_set_name (dest, name);
                
                if (addr)
                    e_destination_set_email (dest, addr);
                
                node = g_list_alloc ();
                node->data = dest;
                node->next = NULL;
                
                if (tail) {
                    node->prev = tail;
                    tail->next = node;
                } else {
                    node->prev = NULL;
                    list = node;
                }
                
                tail = node;
                n++;
            }
        }
        
        camel_object_unref (iaddr);
    }
    
    switch (mode) {
    case UPDATE_AUTO_CC:
        destv = e_msg_composer_hdrs_get_cc (hdrs);
        break;
    case UPDATE_AUTO_BCC:
        destv = e_msg_composer_hdrs_get_bcc (hdrs);
        break;
    default:
        g_assert_not_reached ();
    }
    
    if (destv) {
        for (i = 0; destv[i]; i++) {
            if (!e_destination_is_auto_recipient (destv[i])) {
                node = g_list_alloc ();
                node->data = e_destination_copy (destv[i]);
                node->next = NULL;
                
                if (tail) {
                    node->prev = tail;
                    tail->next = node;
                } else {
                    node->prev = NULL;
                    list = node;
                }
                
                tail = node;
                n++;
            }
        }
        
        e_destination_freev (destv);
    }
    
    destv = e_destination_list_to_vector_sized (list, n);
    g_list_free (list);
    
    switch (mode) {
    case UPDATE_AUTO_CC:
        e_msg_composer_hdrs_set_cc (hdrs, destv);
        break;
    case UPDATE_AUTO_BCC:
        e_msg_composer_hdrs_set_bcc (hdrs, destv);
        break;
    default:
        g_assert_not_reached ();
    }
    
    e_destination_freev (destv);
}

static void
from_changed_cb (EMsgComposerHdrs *hdrs, void *data)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);
    
    if (hdrs->account) {
        EAccount *account = hdrs->account;
        
        e_msg_composer_set_pgp_sign (composer,
                         account->pgp_always_sign &&
                         (!account->pgp_no_imip_sign || !composer->mime_type ||
                          strncasecmp (composer->mime_type, "text/calendar", 13) != 0));
        e_msg_composer_set_smime_sign (composer, account->smime_always_sign);
        update_auto_recipients (hdrs, UPDATE_AUTO_CC, account->always_cc ? account->cc_addrs : NULL);
        update_auto_recipients (hdrs, UPDATE_AUTO_BCC, account->always_bcc ? account->bcc_addrs : NULL);
    } else {
        update_auto_recipients (hdrs, UPDATE_AUTO_CC, NULL);
        update_auto_recipients (hdrs, UPDATE_AUTO_BCC, NULL);
    }
    
    set_editor_signature (composer);
    e_msg_composer_show_sig_file (composer);
}


/* GObject methods.  */

static void
composer_finalise (GObject *object)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (object);
    
    if (composer->extra_hdr_names) {
        int i;
        
        for (i = 0; i < composer->extra_hdr_names->len; i++) {
            g_free (composer->extra_hdr_names->pdata[i]);
            g_free (composer->extra_hdr_values->pdata[i]);
        }
        g_ptr_array_free (composer->extra_hdr_names, TRUE);
        g_ptr_array_free (composer->extra_hdr_values, TRUE);
    }
    
    e_msg_composer_clear_inlined_table (composer);
    g_hash_table_destroy (composer->inline_images);
    g_hash_table_destroy (composer->inline_images_by_url);
    
    g_free (composer->charset);
    g_free (composer->mime_type);
    g_free (composer->mime_body);
    
    if (composer->redirect)
        camel_object_unref (composer->redirect);
    
    if (G_OBJECT_CLASS (parent_class)->finalize != NULL)
        (* G_OBJECT_CLASS (parent_class)->finalize) (object);
}

static void
composer_dispose(GObject *object)
{
    /* When destroy() is called, the contents of the window
     * (including the remote editor control) will already have
     * been destroyed, so we have to do this here.
     */
    autosave_manager_unregister (am, E_MSG_COMPOSER (object));
    if (G_OBJECT_CLASS (parent_class)->dispose != NULL)
        (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

/* GtkObject methods */
static void
destroy (GtkObject *object)
{
    EMsgComposer *composer;
    CORBA_Environment ev;
    
    composer = E_MSG_COMPOSER (object);
    
    CORBA_exception_init (&ev);
    
    if (composer->uic) {
        bonobo_object_unref (BONOBO_OBJECT (composer->uic));
        composer->uic = NULL;
    }
    
    /* FIXME?  I assume the Bonobo widget will get destroyed
           normally?  */
    if (composer->address_dialog != NULL) {
        gtk_widget_destroy (composer->address_dialog);
        composer->address_dialog = NULL;
    }
    if (composer->hdrs != NULL) {
        gtk_widget_destroy (composer->hdrs);
        composer->hdrs = NULL;
    }
    
    if (composer->notify_id) {
        GConfClient *gconf = gconf_client_get_default ();
        gconf_client_notify_remove (gconf, composer->notify_id);
        composer->notify_id = 0;
        g_object_unref (gconf);
    }       

    if (composer->persist_stream_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (composer->persist_stream_interface, &ev);
        CORBA_Object_release (composer->persist_stream_interface, &ev);
        composer->persist_stream_interface = CORBA_OBJECT_NIL;
    }
    
    if (composer->persist_file_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (composer->persist_file_interface, &ev);
        CORBA_Object_release (composer->persist_file_interface, &ev);
        composer->persist_file_interface = CORBA_OBJECT_NIL;
    }
    
    if (composer->editor_engine != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (composer->editor_engine, &ev);
        CORBA_Object_release (composer->editor_engine, &ev);
        composer->editor_engine = CORBA_OBJECT_NIL;
    }
    
    CORBA_exception_free (&ev);
    
    if (composer->editor_listener) {
        bonobo_object_unref (composer->editor_listener);
        composer->editor_listener = NULL;
    }
    
    mail_config_signature_unregister_client ((MailConfigSignatureClient) sig_event_client, composer);
    
    if (GTK_OBJECT_CLASS (parent_class)->destroy != NULL)
        (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


/* GtkWidget methods.  */

static int
delete_event (GtkWidget *widget,
          GdkEventAny *event)
{
    do_exit (E_MSG_COMPOSER (widget));
    
    return TRUE;
}

static void
message_rfc822_dnd (EMsgComposer *composer, CamelStream *stream)
{
    CamelMimeParser *mp;
    
    mp = camel_mime_parser_new ();
    camel_mime_parser_scan_from (mp, TRUE);
    camel_mime_parser_init_with_stream (mp, stream);
    
    while (camel_mime_parser_step (mp, 0, 0) == HSCAN_FROM) {
        CamelMimeMessage *message;
        CamelMimePart *part;
        
        message = camel_mime_message_new ();
        if (camel_mime_part_construct_from_parser (CAMEL_MIME_PART (message), mp) == -1) {
            camel_object_unref (message);
            break;
        }
        
        part = camel_mime_part_new ();
        camel_mime_part_set_disposition (part, "inline");
        camel_medium_set_content_object (CAMEL_MEDIUM (part),
                         CAMEL_DATA_WRAPPER (message));
        camel_mime_part_set_content_type (part, "message/rfc822");
        e_msg_composer_attachment_bar_attach_mime_part (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
                                part);
        camel_object_unref (message);
        camel_object_unref (part);
        
        /* skip over the FROM_END state */
        camel_mime_parser_step (mp, 0, 0);
    }
    
    camel_object_unref (mp);
}

static void
drag_data_received (EMsgComposer *composer, GdkDragContext *context,
            int x, int y, GtkSelectionData *selection,
            guint info, guint time)
{
    char *tmp, *str, *filename, **urls;
    CamelMimePart *mime_part;
    CamelStream *stream;
    CamelURL *url;
    int i;
    
    switch (info) {
    case DND_TYPE_MESSAGE_RFC822:
        d(printf ("dropping a message/rfc822\n"));
        /* write the message(s) out to a CamelStream so we can use it */
        stream = camel_stream_mem_new ();
        camel_stream_write (stream, selection->data, selection->length);
        camel_stream_reset (stream);
        
        message_rfc822_dnd (composer, stream);
        camel_object_unref (stream);
        break;
    case DND_TYPE_TEXT_URI_LIST:
        d(printf ("dropping a text/uri-list\n"));
        tmp = g_strndup (selection->data, selection->length);
        urls = g_strsplit (tmp, "\n", 0);
        g_free (tmp);
        
        for (i = 0; urls[i] != NULL; i++) {
            str = g_strstrip (urls[i]);
            
            if (!strncasecmp (str, "mailto:", 7)) {
                handle_mailto (composer, str);
                g_free (str);
            } else {
                url = camel_url_new (str, NULL);
                g_free (str);

                if (url == NULL)
                    continue;
                
                filename = url->path;
                url->path = NULL;
                camel_url_free (url);
                
                e_msg_composer_attachment_bar_attach
                    (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
                     filename);
                
                g_free (filename);
            }
        }
        
        g_free (urls);
        break;
    case DND_TYPE_TEXT_VCARD:
        d(printf ("dropping a text/x-vcard\n"));
        mime_part = camel_mime_part_new ();
        camel_mime_part_set_content (mime_part, selection->data,
                         selection->length, "text/x-vcard");
        camel_mime_part_set_disposition (mime_part, "inline");
        
        e_msg_composer_attachment_bar_attach_mime_part
            (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
             mime_part);
        
        camel_object_unref (mime_part);
    default:
        d(printf ("dropping an unknown\n"));
        break;
    }
}

static void
class_init (EMsgComposerClass *klass)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;
    GObjectClass *gobject_class;

    gobject_class = G_OBJECT_CLASS(klass);
    object_class = GTK_OBJECT_CLASS (klass);
    widget_class = GTK_WIDGET_CLASS (klass);
    
    gobject_class->finalize = composer_finalise;
    gobject_class->dispose = composer_dispose;
    object_class->destroy = destroy;
    widget_class->delete_event = delete_event;
    
    parent_class = g_type_class_ref(bonobo_window_get_type ());
    
    signals[SEND] =
        g_signal_new ("send",
                  E_TYPE_MSG_COMPOSER,
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EMsgComposerClass, send),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);
    
    signals[SAVE_DRAFT] =
        g_signal_new ("save-draft",
                  E_TYPE_MSG_COMPOSER,
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EMsgComposerClass, save_draft),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__BOOLEAN,
                  G_TYPE_NONE,
                  1, G_TYPE_BOOLEAN);
}

static void
init (EMsgComposer *composer)
{
    composer->uic                      = NULL;
    
    composer->hdrs                     = NULL;
    composer->extra_hdr_names          = g_ptr_array_new ();
    composer->extra_hdr_values         = g_ptr_array_new ();
    
    composer->focused_entry            = NULL;
    
    composer->editor                   = NULL;
    
    composer->address_dialog           = NULL;
    
    composer->attachment_bar           = NULL;
    composer->attachment_scrolled_window = NULL;
    
    composer->persist_file_interface   = CORBA_OBJECT_NIL;
    composer->persist_stream_interface = CORBA_OBJECT_NIL;
    
    composer->editor_engine            = CORBA_OBJECT_NIL;
    composer->inline_images            = g_hash_table_new (g_str_hash, g_str_equal);
    composer->inline_images_by_url     = g_hash_table_new (g_str_hash, g_str_equal);
    composer->current_images           = NULL;
    
    composer->attachment_bar_visible   = FALSE;
    composer->send_html                = FALSE;
    composer->pgp_sign                 = FALSE;
    composer->pgp_encrypt              = FALSE;
    composer->smime_sign               = FALSE;
    composer->smime_encrypt            = FALSE;
    
    composer->has_changed              = FALSE;
    
    composer->redirect                 = FALSE;
    
    composer->charset                  = NULL;
    
    composer->enable_autosave          = TRUE;
    composer->autosave_file            = NULL;
    composer->autosave_fd              = -1;
}


GtkType
e_msg_composer_get_type (void)
{
    static GType type = 0;
    
    if (type == 0) {
        static const GTypeInfo info = {
            sizeof (EMsgComposerClass),
            NULL, NULL,
            (GClassInitFunc) class_init,
            NULL, NULL,
            sizeof (EMsgComposer),
            0,
            (GInstanceInitFunc) init,
        };
        
        type = g_type_register_static (bonobo_window_get_type (), "EMsgComposer", &info, 0);
    }
    
    return type;
}

static void
e_msg_composer_load_config (EMsgComposer *composer)
{
    GConfClient *gconf;
    
    gconf = gconf_client_get_default ();
    
    composer->view_from = gconf_client_get_bool (
        gconf, "/apps/evolution/mail/composer/view/From", NULL);
    composer->view_replyto = gconf_client_get_bool ( 
        gconf, "/apps/evolution/mail/composer/view/ReplyTo", NULL);
    composer->view_cc = gconf_client_get_bool ( 
        gconf, "/apps/evolution/mail/composer/view/Cc", NULL);
    composer->view_bcc = gconf_client_get_bool (
        gconf, "/apps/evolution/mail/composer/view/Bcc", NULL);
    composer->view_subject = gconf_client_get_bool (
        gconf, "/apps/evolution/mail/composer/view/Subject", NULL);
    
    g_object_unref (gconf);
}

static int
e_msg_composer_get_visible_flags (EMsgComposer *composer)
{
    int flags = 0;
    
    if (composer->view_from)
        flags |= E_MSG_COMPOSER_VISIBLE_FROM;
    if (composer->view_replyto)
        flags |= E_MSG_COMPOSER_VISIBLE_REPLYTO;
    if (composer->view_cc)
        flags |= E_MSG_COMPOSER_VISIBLE_CC;
    if (composer->view_bcc)
        flags |= E_MSG_COMPOSER_VISIBLE_BCC;
    if (composer->view_subject)
        flags |= E_MSG_COMPOSER_VISIBLE_SUBJECT;
    
    /*
     * Until we have a GUI way, lets make sure that
     * even if the user screws up, we will do the right
     * thing (screws up == edit the config file manually
     * and screw up).
     */
    flags |= E_MSG_COMPOSER_VISIBLE_SUBJECT;    
    return flags;
}


static void
map_default_cb (EMsgComposer *composer, gpointer user_data)
{
    GtkWidget *widget;
    BonoboControlFrame *cf;
    Bonobo_PropertyBag pb = CORBA_OBJECT_NIL;
    CORBA_Environment ev;
    const char *subject;
    char *text;
    
    /* If the 'To:' field is empty, focus it (This is ridiculously complicated) */
    
    widget = e_msg_composer_hdrs_get_to_entry (E_MSG_COMPOSER_HDRS (composer->hdrs));
    cf = bonobo_widget_get_control_frame (BONOBO_WIDGET (widget));
    pb = bonobo_control_frame_get_control_property_bag (cf, NULL);
    text = bonobo_pbclient_get_string (pb, "text", NULL);
    bonobo_object_release_unref (pb, NULL);
    
    if (!text || text[0] == '\0') {
        bonobo_control_frame_control_activate (cf);

        g_free (text);
        return;
    }
    g_free (text);
    
    /* If not, check the subject field */
    
    subject = e_msg_composer_hdrs_get_subject (E_MSG_COMPOSER_HDRS (composer->hdrs));
    
    if (!subject || subject[0] == '\0') {
        widget = e_msg_composer_hdrs_get_subject_entry (E_MSG_COMPOSER_HDRS (composer->hdrs));
        gtk_widget_grab_focus (widget);
        return;
    }
    
    /* Jump to the editor as a last resort. */
    
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "grab-focus", &ev);
    CORBA_exception_free (&ev);
}

static void
msg_composer_destroy_notify (void *data)
{
    EMsgComposer *composer = E_MSG_COMPOSER (data);
    
    all_composers = g_slist_remove (all_composers, composer);
}

static int
composer_key_pressed (GtkWidget *widget, GdkEventKey *event, gpointer user_data)
{
    if (event->keyval == GDK_Escape) {
        do_exit (E_MSG_COMPOSER (widget));
        
        g_signal_stop_emission_by_name (widget, "key-press-event");
        return TRUE; /* Handled.  */
    }
    
    return FALSE; /* Not handled. */
}


/* All this snot is so that Cut/Copy/Paste work. */
static gboolean
composer_entry_focus_in_event_cb (GtkWidget *widget, GdkEventFocus *event, gpointer user_data)
{
    EMsgComposer *composer = user_data;
    
    composer->focused_entry = widget;
    bonobo_ui_component_add_verb_list_with_data (composer->uic, verbs, composer);
    
    return FALSE;
}

static gboolean
composer_entry_focus_out_event_cb (GtkWidget *widget, GdkEventFocus *event, gpointer user_data)
{
    EMsgComposer *composer = user_data;
    
    g_assert (composer->focused_entry == widget);
    composer->focused_entry = NULL;
    
    return FALSE;
}

static void
setup_cut_copy_paste (EMsgComposer *composer)
{
    EMsgComposerHdrs *hdrs;
    GtkWidget *entry;
    
    hdrs = (EMsgComposerHdrs *) composer->hdrs;
    
    entry = e_msg_composer_hdrs_get_subject_entry (hdrs);
    g_signal_connect (entry, "focus-in-event", G_CALLBACK (composer_entry_focus_in_event_cb), composer);
    g_signal_connect (entry, "focus-out-event", G_CALLBACK (composer_entry_focus_out_event_cb), composer);
    
    entry = e_msg_composer_hdrs_get_reply_to_entry (hdrs);
    g_signal_connect (entry, "focus-in-event", G_CALLBACK (composer_entry_focus_in_event_cb), composer);
    g_signal_connect (entry, "focus-out-event", G_CALLBACK (composer_entry_focus_out_event_cb), composer);
}

static void
composer_settings_update (GConfClient *gconf, guint cnxn_id, GConfEntry *entry, gpointer data)
{
    gboolean bool;
    EMsgComposer *composer = data;

    bool = gconf_client_get_bool (gconf, "/apps/evolution/mail/composer/magic_smileys", NULL);
    bonobo_widget_set_property (BONOBO_WIDGET (composer->editor),
                    "MagicSmileys", TC_CORBA_boolean, bool,
                    NULL);

    bool = gconf_client_get_bool (gconf, "/apps/evolution/mail/composer/magic_links", NULL);
    bonobo_widget_set_property (BONOBO_WIDGET (composer->editor),
                    "MagicLinks", TC_CORBA_boolean, bool,
                    NULL);

    bool = gconf_client_get_bool (gconf, "/apps/evolution/mail/composer/inline_spelling", NULL);
    bonobo_widget_set_property (BONOBO_WIDGET (composer->editor),
                   "InlineSpelling", TC_CORBA_boolean, bool,
                   NULL);
}

static EMsgComposer *
create_composer (int visible_mask)
{
    EMsgComposer *composer;
    GtkWidget *vbox;
    Bonobo_Unknown editor_server;
    CORBA_Environment ev;
    GConfClient *gconf;
    int vis;
    
    composer = g_object_new (E_TYPE_MSG_COMPOSER, "win_name", _("Compose a message"), NULL);
    gtk_window_set_title ((GtkWindow *) composer, _("Compose a message"));
    
    all_composers = g_slist_prepend (all_composers, composer);
    
    g_signal_connect (composer, "key-press-event",
              G_CALLBACK (composer_key_pressed),
              NULL);
    g_signal_connect (composer, "destroy",
              G_CALLBACK (msg_composer_destroy_notify),
              NULL);
    
    gtk_window_set_default_size (GTK_WINDOW (composer),
                     DEFAULT_WIDTH, DEFAULT_HEIGHT);
    gnome_window_icon_set_from_file (GTK_WINDOW (composer), EVOLUTION_DATADIR
                     "/images/evolution/compose-message.png");
    
    /* DND support */
    gtk_drag_dest_set (GTK_WIDGET (composer), GTK_DEST_DEFAULT_ALL,
               drop_types, num_drop_types, GDK_ACTION_COPY);
    g_signal_connect (composer, "drag_data_received",
              G_CALLBACK (drag_data_received), NULL);
    e_msg_composer_load_config (composer);
    
    setup_ui (composer);
    
    vbox = gtk_vbox_new (FALSE, 0);
    
    vis = e_msg_composer_get_visible_flags (composer);
    composer->hdrs = e_msg_composer_hdrs_new (composer->uic, visible_mask, vis);
    if (!composer->hdrs) {
        e_activation_failure_dialog (GTK_WINDOW (composer),
                         _("Could not create composer window:\n"
                           "Unable to activate address selector control."),
                         SELECT_NAMES_OAFIID,
                         "IDL:Bonobo/Control:1.0");
        gtk_object_destroy (GTK_OBJECT (composer));
        return NULL;
    }
    
    gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
    gtk_box_set_spacing (GTK_BOX (vbox), 6);
    gtk_box_pack_start (GTK_BOX (vbox), composer->hdrs, FALSE, FALSE, 0);
    g_signal_connect (composer->hdrs, "subject_changed",
              G_CALLBACK (subject_changed_cb), composer);
    g_signal_connect (composer->hdrs, "hdrs_changed",
              G_CALLBACK (hdrs_changed_cb), composer);
    g_signal_connect (composer->hdrs, "from_changed",
              G_CALLBACK (from_changed_cb), composer);
    gtk_widget_show (composer->hdrs);
    
    prepare_signatures_menu (composer);
    setup_signatures_menu (composer);
    
    /* Editor component.  */
    composer->editor = bonobo_widget_new_control (
        GNOME_GTKHTML_EDITOR_CONTROL_ID,
        bonobo_ui_component_get_container (composer->uic));
    if (!composer->editor) {
        e_activation_failure_dialog (GTK_WINDOW (composer),
                         _("Could not create composer window:\n"
                           "Unable to activate HTML editor component.\n"
                           "Please make sure you have the correct version\n"
                           "of gtkhtml and libgtkhtml installed.\n"),
                         GNOME_GTKHTML_EDITOR_CONTROL_ID,
                         "IDL:Bonobo/Control:1.0");
        gtk_object_destroy (GTK_OBJECT (composer));
        return NULL;
    }
    
    /* let the editor know which mode we are in */
    bonobo_widget_set_property (BONOBO_WIDGET (composer->editor), 
                    "FormatHTML", TC_CORBA_boolean, composer->send_html,
                    NULL);
    
    gconf = gconf_client_get_default ();
    composer_settings_update (gconf, 0, NULL, composer);
    gconf_client_add_dir (gconf, "/apps/evolution/mail/composer", GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
    composer->notify_id = gconf_client_notify_add (gconf, "/apps/evolution/mail/composer",
                               composer_settings_update, composer, NULL, NULL);
    g_object_unref (gconf);
    
    editor_server = bonobo_widget_get_objref (BONOBO_WIDGET (composer->editor));
    
    /* FIXME: handle exceptions */
    CORBA_exception_init (&ev);
    composer->persist_file_interface
        = Bonobo_Unknown_queryInterface (editor_server, "IDL:Bonobo/PersistFile:1.0", &ev);
    composer->persist_stream_interface
        = Bonobo_Unknown_queryInterface (editor_server, "IDL:Bonobo/PersistStream:1.0", &ev);
    CORBA_exception_free (&ev);
    
    gtk_box_pack_start (GTK_BOX (vbox), composer->editor, TRUE, TRUE, 0);
    
    /* Attachment editor, wrapped into an EScrollFrame.  We don't
           show it for now.  */
    
    composer->attachment_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (composer->attachment_scrolled_window),
                         GTK_SHADOW_IN);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (composer->attachment_scrolled_window),
                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    
    composer->attachment_bar = e_msg_composer_attachment_bar_new (NULL);
    GTK_WIDGET_SET_FLAGS (composer->attachment_bar, GTK_CAN_FOCUS);
    gtk_container_add (GTK_CONTAINER (composer->attachment_scrolled_window),
               composer->attachment_bar);
    gtk_box_pack_start (GTK_BOX (vbox),
                composer->attachment_scrolled_window,
                FALSE, FALSE, GNOME_PAD_SMALL);
    
    g_signal_connect (composer->attachment_bar, "changed",
              G_CALLBACK (attachment_bar_changed_cb), composer);
    
    bonobo_window_set_contents (BONOBO_WINDOW (composer), vbox);
    gtk_widget_show (vbox);
    
    /* If we show this widget earlier, we lose network transparency. i.e. the
       component appears on the machine evo is running on, ignoring any DISPLAY
       variable. */
    gtk_widget_show (composer->editor);
    
    e_msg_composer_show_attachments (composer, FALSE);
    
    prepare_engine (composer);
    if (composer->editor_engine == CORBA_OBJECT_NIL) {
        e_activation_failure_dialog (GTK_WINDOW (composer),
                         _("Could not create composer window:\n"
                           "Unable to activate HTML editor component."),
                         GNOME_GTKHTML_EDITOR_CONTROL_ID,
                         "IDL:GNOME/GtkHTML/Editor/Engine:1.0");
        gtk_object_destroy (GTK_OBJECT (composer));
        return NULL;
    }
    
    setup_cut_copy_paste (composer);
    
    g_signal_connect (composer, "map", (GCallback) map_default_cb, NULL);
    
    if (am == NULL)
        am = autosave_manager_new ();
    
    autosave_manager_register (am, composer);
    
    return composer;
}

static void
set_editor_signature (EMsgComposer *composer)
{
    EAccountIdentity *id;
    GSList *signatures;
    
    /* printf ("set_editor_signature\n"); */
    id = E_MSG_COMPOSER_HDRS (composer->hdrs)->account->id;
    
    signatures = mail_config_get_signature_list ();
    
    composer->signature = g_slist_nth_data (signatures, id->def_signature);
    composer->auto_signature = id->auto_signature;
    
    /* printf ("auto: %d\n", id->auto_signature); */
    
    sig_select_item (composer);
    
    /* printf ("set_editor_signature end\n"); */
}


/**
 * e_msg_composer_new:
 *
 * Create a new message composer widget.
 * 
 * Return value: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new (void)
{
    gboolean send_html;
    GConfClient *gconf;
    EMsgComposer *new;
    
    gconf = gconf_client_get_default ();
    send_html = gconf_client_get_bool (gconf, "/apps/evolution/mail/composer/send_html", NULL);
    g_object_unref (gconf);
    
    new = create_composer (E_MSG_COMPOSER_VISIBLE_MASK_MAIL);
    if (new) {
        e_msg_composer_set_send_html (new, send_html);
        set_editor_text (new, "");
        set_editor_signature (new);
    }
    
    return new;
}

/**
 * e_msg_composer_new_post:
 *
 * Create a new message composer widget.
 * 
 * Return value: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new_post (void)
{
    gboolean send_html;
    GConfClient *gconf;
    EMsgComposer *new;
    
    gconf = gconf_client_get_default ();
    send_html = gconf_client_get_bool (gconf, "/apps/evolution/mail/composer/send_html", NULL);
    g_object_unref (gconf);
    
    new = create_composer (E_MSG_COMPOSER_VISIBLE_MASK_POST);
    if (new) {
        e_msg_composer_set_send_html (new, send_html);
        set_editor_text (new, "");
        set_editor_signature (new);
    }
    
    return new;
}


static gboolean
is_special_header (const char *hdr_name)
{
    /* Note: a header is a "special header" if it has any meaning:
       1. it's not a X-* header or
       2. it's an X-Evolution* header
    */
    if (strncasecmp (hdr_name, "X-", 2))
        return TRUE;
    
    if (!strncasecmp (hdr_name, "X-Evolution", 11))
        return TRUE;
    
    /* we can keep all other X-* headers */
    
    return FALSE;
}

static void
e_msg_composer_set_pending_body (EMsgComposer *composer, char *text)
{
    char *old;
    
    old = g_object_get_data ((GObject *) composer, "body:text");
        g_free (old);
    g_object_set_data ((GObject *) composer, "body:text", text);
}

static void
e_msg_composer_flush_pending_body (EMsgComposer *composer, gboolean apply)
{
        char *body;
    
    body = g_object_get_data ((GObject *) composer, "body:text");
    if (body) {
        if (apply) 
            set_editor_text (composer, body);
        
        g_object_set_data ((GObject *) composer, "body:text", NULL);
        g_free (body);
    }
}   

static void
add_attachments_handle_mime_part (EMsgComposer *composer, CamelMimePart *mime_part, 
                  gboolean just_inlines, gboolean related, int depth)
{
    CamelContentType *content_type;
    CamelDataWrapper *wrapper;
    
    content_type = camel_mime_part_get_content_type (mime_part);
    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
    
    if (CAMEL_IS_MULTIPART (wrapper)) {
        /* another layer of multipartness... */
        add_attachments_from_multipart (composer, (CamelMultipart *) wrapper, just_inlines, depth + 1);
    } else if (just_inlines) {
        if (camel_mime_part_get_content_id (mime_part) ||
            camel_mime_part_get_content_location (mime_part))
            e_msg_composer_add_inline_image_from_mime_part (composer, mime_part);
    } else if (CAMEL_IS_MIME_MESSAGE (wrapper)) {
        /* do nothing */
    } else if (related && header_content_type_is (content_type, "image", "*")) {
        e_msg_composer_add_inline_image_from_mime_part (composer, mime_part);
    } else {
        if (header_content_type_is (content_type, "text", "*")) {
            /* do nothing */
        } else {
            e_msg_composer_attach (composer, mime_part);
        }
    }
}

static void
add_attachments_from_multipart (EMsgComposer *composer, CamelMultipart *multipart,
                gboolean just_inlines, int depth)
{
    /* find appropriate message attachments to add to the composer */
    CamelMimePart *mime_part;
    gboolean related;
    int i, nparts;
    
    related = header_content_type_is (CAMEL_DATA_WRAPPER (multipart)->mime_type, "multipart", "related");
        
    if (CAMEL_IS_MULTIPART_SIGNED (multipart)) {
        mime_part = camel_multipart_get_part (multipart, CAMEL_MULTIPART_SIGNED_CONTENT);
        add_attachments_handle_mime_part (composer, mime_part, just_inlines, related, depth);
    } else if (CAMEL_IS_MULTIPART_ENCRYPTED (multipart)) {
        /* what should we do in this case? */
    } else {
        nparts = camel_multipart_get_number (multipart);

        for (i = 0; i < nparts; i++) {
            mime_part = camel_multipart_get_part (multipart, i);
            add_attachments_handle_mime_part (composer, mime_part, just_inlines, related, depth);
        }
    }
}


/**
 * e_msg_composer_add_message_attachments:
 * @composer: the composer to add the attachments to.
 * @message: the source message to copy the attachments from.
 * @just_inlines: whether to attach all attachments or just add
 * inline images.
 *
 * Walk through all the mime parts in @message and add them to the composer
 * specified in @composer.
 */
void
e_msg_composer_add_message_attachments (EMsgComposer *composer, CamelMimeMessage *message,
                    gboolean just_inlines)
{
    CamelDataWrapper *wrapper;
    
    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (message));
    if (!CAMEL_IS_MULTIPART (wrapper))
        return;
    
    /* there must be attachments... */
    add_attachments_from_multipart (composer, (CamelMultipart *) wrapper, just_inlines, 0);
}


static void
handle_multipart_signed (EMsgComposer *composer, CamelMultipart *multipart, int depth)
{
    CamelContentType *content_type;
    CamelDataWrapper *content;
    CamelMimePart *mime_part;
    
    /* FIXME: make sure this isn't an s/mime signed part?? */
    e_msg_composer_set_pgp_sign (composer, TRUE);
    
    mime_part = camel_multipart_get_part (multipart, CAMEL_MULTIPART_SIGNED_CONTENT);
    content_type = camel_mime_part_get_content_type (mime_part);
    
    content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
    
    if (CAMEL_IS_MULTIPART (content)) {
        multipart = CAMEL_MULTIPART (content);
        
        /* Note: depth is preserved here because we're not
                   counting multipart/signed as a multipart, instead
                   we want to treat the content part as our mime part
                   here. */
        
        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (composer, multipart, depth);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (composer, multipart, depth);
        } else if (header_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (composer, multipart, depth);
        } else {
            /* there must be attachments... */
            handle_multipart (composer, multipart, depth);
        }
    } else if (header_content_type_is (content_type, "text", "*")) {
        char *text;
        
        if ((text = mail_get_message_body (content, FALSE, FALSE)))
            e_msg_composer_set_pending_body (composer, text);
    } else {
        e_msg_composer_attach (composer, mime_part);
    }
}

static void
handle_multipart_encrypted (EMsgComposer *composer, CamelMultipart *multipart, int depth)
{
    CamelMultipartEncrypted *mpe = (CamelMultipartEncrypted *) multipart;
    CamelContentType *content_type;
    CamelCipherContext *cipher;
    CamelDataWrapper *content;
    CamelMimePart *mime_part;
    CamelException ex;
    
    /* FIXME: make sure this is a PGP/MIME encrypted part?? */
    e_msg_composer_set_pgp_encrypt (composer, TRUE);
    
    camel_exception_init (&ex);
    cipher = mail_crypto_get_pgp_cipher_context (NULL);
    mime_part = camel_multipart_encrypted_decrypt (mpe, cipher, &ex);
    camel_object_unref (cipher);
    camel_exception_clear (&ex);
    
    if (!mime_part)
        return;
    
    content_type = camel_mime_part_get_content_type (mime_part);
    
    content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
    
    if (CAMEL_IS_MULTIPART (content)) {
        multipart = CAMEL_MULTIPART (content);
        
        /* Note: depth is preserved here because we're not
                   counting multipart/encrypted as a multipart, instead
                   we want to treat the content part as our mime part
                   here. */
        
        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (composer, multipart, depth);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (composer, multipart, depth);
        } else if (header_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (composer, multipart, depth);
        } else {
            /* there must be attachments... */
            handle_multipart (composer, multipart, depth);
        }
    } else if (header_content_type_is (content_type, "text", "*")) {
        char *text;
        
        if ((text = mail_get_message_body (content, FALSE, FALSE)))
            e_msg_composer_set_pending_body (composer, text);
    } else {
        e_msg_composer_attach (composer, mime_part);
    }
    
    camel_object_unref (mime_part);
}

static void
handle_multipart_alternative (EMsgComposer *composer, CamelMultipart *multipart, int depth)
{
    /* Find the text/html part and set the composer body to it's contents */
    CamelMimePart *text_part = NULL;
    int i, nparts;
    
    nparts = camel_multipart_get_number (multipart);
    
    for (i = 0; i < nparts; i++) {
        CamelContentType *content_type;
        CamelDataWrapper *content;
        CamelMimePart *mime_part;
        
        mime_part = camel_multipart_get_part (multipart, i);
        content_type = camel_mime_part_get_content_type (mime_part);
        content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
        
        if (CAMEL_IS_MULTIPART (content)) {
            CamelMultipart *mp;
            
            mp = CAMEL_MULTIPART (content);
            
            if (CAMEL_IS_MULTIPART_SIGNED (content)) {
                /* handle the signed content and configure the composer to sign outgoing messages */
                handle_multipart_signed (composer, mp, depth + 1);
            } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
                /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
                handle_multipart_encrypted (composer, mp, depth + 1);
            } else {
                /* depth doesn't matter so long as we don't pass 0 */
                handle_multipart (composer, mp, depth + 1);
            }
        } else if (header_content_type_is (content_type, "text", "html")) {
            /* text/html is preferable, so once we find it we're done... */
            text_part = mime_part;
            break;
        } else if (header_content_type_is (content_type, "text", "*")) {
            /* anyt text part not text/html is second rate so the first
               text part we find isn't necessarily the one we'll use. */
            if (!text_part)
                text_part = mime_part;
        } else {
            e_msg_composer_attach (composer, mime_part);
        }
    }
    
    if (text_part) {
        CamelDataWrapper *contents;
        char *text;
        
        contents = camel_medium_get_content_object (CAMEL_MEDIUM (text_part));
        if ((text = mail_get_message_body (contents, FALSE, FALSE)))
            e_msg_composer_set_pending_body (composer, text);
    }
}

static void
handle_multipart (EMsgComposer *composer, CamelMultipart *multipart, int depth)
{
    int i, nparts;
    
    nparts = camel_multipart_get_number (multipart);
    
    for (i = 0; i < nparts; i++) {
        CamelContentType *content_type;
        CamelDataWrapper *content;
        CamelMimePart *mime_part;

        mime_part = camel_multipart_get_part (multipart, i);
        content_type = camel_mime_part_get_content_type (mime_part);
        content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
        
        if (CAMEL_IS_MULTIPART (content)) {
            CamelMultipart *mp;
            
            mp = CAMEL_MULTIPART (content);
            
            if (CAMEL_IS_MULTIPART_SIGNED (content)) {
                /* handle the signed content and configure the composer to sign outgoing messages */
                handle_multipart_signed (composer, mp, depth + 1);
            } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
                /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
                handle_multipart_encrypted (composer, mp, depth + 1);
            } else if (header_content_type_is (content_type, "multipart", "alternative")) {
                handle_multipart_alternative (composer, mp, depth + 1);
            } else {
                /* depth doesn't matter so long as we don't pass 0 */
                handle_multipart (composer, mp, depth + 1);
            }
        } else if (depth == 0 && i == 0) {
            /* Since the first part is not multipart/alternative, then this must be the body */
            char *text;
            
            text = mail_get_message_body (content, FALSE, FALSE);
            
            if (text)
                e_msg_composer_set_pending_body (composer, text);
        } else if (camel_mime_part_get_content_id (mime_part) ||
               camel_mime_part_get_content_location (mime_part)) {
            /* special in-line attachment */
            e_msg_composer_add_inline_image_from_mime_part (composer, mime_part);
        } else {
            /* normal attachment */
            e_msg_composer_attach (composer, mime_part);
        }
    }
}

static void
set_signature_gui (EMsgComposer *composer)
{
    CORBA_Environment ev;

    composer->auto_signature = FALSE;
    composer->signature = NULL;

    CORBA_exception_init (&ev);
    if (GNOME_GtkHTML_Editor_Engine_searchByData (composer->editor_engine, 1, "ClueFlow", "signature", "1", &ev)) {
        gchar *str = NULL;

        str = GNOME_GtkHTML_Editor_Engine_getParagraphData (composer->editor_engine, "signature_name", &ev);
        if (ev._major == CORBA_NO_EXCEPTION && str) {
            if (!strncmp (str, "name:", 5)) {
                GSList *list = NULL;
                char *decoded_signature_name = decode_signature_name (str + 5);
                
                list = mail_config_get_signature_list ();
                if (list && decoded_signature_name)
                    for (; list; list = list->next) {
                        if (!strcmp (decoded_signature_name,
                                 ((MailConfigSignature *) list->data)->name))
                            break;
                    }
                if (list && decoded_signature_name)
                    composer->signature = (MailConfigSignature *) list->data;
                else
                    composer->auto_signature = TRUE;
                g_free (decoded_signature_name);
            } else if (!strcmp (str, "auto")) {
                composer->auto_signature = TRUE;
            }
        }
        sig_select_item (composer);
    }
    CORBA_exception_free (&ev);
}


static void
auto_recip_free (gpointer key, gpointer value, gpointer user_data)
{
    g_free (key);
}

/**
 * e_msg_composer_new_with_message:
 * @message: The message to use as the source
 * 
 * Create a new message composer widget.
 *
 * Note: Designed to work only for messages constructed using Evolution.
 *
 * Return value: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new_with_message (CamelMimeMessage *message)
{
    const CamelInternetAddress *to, *cc, *bcc;
    GList *To = NULL, *Cc = NULL, *Bcc = NULL;
    const char *format, *subject, *postto;
    EDestination **Tov, **Ccv, **Bccv;
    GHashTable *auto_cc, *auto_bcc;
    CamelContentType *content_type;
    struct _header_raw *headers;
    CamelDataWrapper *content;
    EAccount *account = NULL;
    char *account_name;
    EMsgComposer *new;
    XEvolution *xev;
    int len, i;
    
    postto = camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-PostTo");
    
    new = create_composer (postto ? E_MSG_COMPOSER_VISIBLE_MASK_POST : E_MSG_COMPOSER_VISIBLE_MASK_MAIL);
    if (!new)
        return NULL;
    
    if (postto)
        e_msg_composer_hdrs_set_post_to (E_MSG_COMPOSER_HDRS (new->hdrs), postto);
    
    /* Restore the Account preference */
    account_name = (char *) camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-Account");
    if (account_name) {
        account_name = g_strdup (account_name);
        g_strstrip (account_name);
        
        account = mail_config_get_account_by_name (account_name);
    }
    
    if (postto == NULL) {
        auto_cc = g_hash_table_new (camel_strcase_hash, camel_strcase_equal);
        auto_bcc = g_hash_table_new (camel_strcase_hash, camel_strcase_equal);
        
        if (account) {
            CamelInternetAddress *iaddr;
            
            /* hash our auto-recipients for this account */
            if (account->always_cc) {
                iaddr = camel_internet_address_new ();
                if (camel_address_decode (CAMEL_ADDRESS (iaddr), account->cc_addrs) != -1) {
                    for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                        const char *name, *addr;
                        
                        if (!camel_internet_address_get (iaddr, i, &name, &addr))
                            continue;
                        
                        g_hash_table_insert (auto_cc, g_strdup (addr), GINT_TO_POINTER (TRUE));
                    }
                }
                camel_object_unref (iaddr);
            }
            
            if (account->always_bcc) {
                iaddr = camel_internet_address_new ();
                if (camel_address_decode (CAMEL_ADDRESS (iaddr), account->bcc_addrs) != -1) {
                    for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                        const char *name, *addr;
                        
                        if (!camel_internet_address_get (iaddr, i, &name, &addr))
                            continue;
                        
                        g_hash_table_insert (auto_bcc, g_strdup (addr), GINT_TO_POINTER (TRUE));
                    }
                }
                camel_object_unref (iaddr);
            }
        }
        
        to = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO);
        cc = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC);
        bcc = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_BCC);
        
        len = CAMEL_ADDRESS (to)->addresses->len;
        for (i = 0; i < len; i++) {
            const char *name, *addr;
            
            if (camel_internet_address_get (to, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);
                To = g_list_append (To, dest);
            }
        }
        Tov = e_destination_list_to_vector (To);
        g_list_free (To);
        
        len = CAMEL_ADDRESS (cc)->addresses->len;
        for (i = 0; i < len; i++) {
            const char *name, *addr;
            
            if (camel_internet_address_get (cc, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);
                
                if (g_hash_table_lookup (auto_cc, addr))
                    e_destination_set_auto_recipient (dest, TRUE);
                
                Cc = g_list_append (Cc, dest);
            }
        }
        
        Ccv = e_destination_list_to_vector (Cc);
        g_hash_table_foreach (auto_cc, auto_recip_free, NULL);
        g_hash_table_destroy (auto_cc);
        g_list_free (Cc);
        
        len = CAMEL_ADDRESS (bcc)->addresses->len;
        for (i = 0; i < len; i++) {
            const char *name, *addr;
            
            if (camel_internet_address_get (bcc, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);
                
                if (g_hash_table_lookup (auto_bcc, addr))
                    e_destination_set_auto_recipient (dest, TRUE);
                
                Bcc = g_list_append (Bcc, dest);
            }
        }
        
        Bccv = e_destination_list_to_vector (Bcc);
        g_hash_table_foreach (auto_bcc, auto_recip_free, NULL);
        g_hash_table_destroy (auto_bcc);
        g_list_free (Bcc);
    } else {
        Tov = NULL;
        Ccv = NULL;
        Bccv = NULL;
    }
    
    subject = camel_mime_message_get_subject (message);
    
    e_msg_composer_set_headers (new, account_name, Tov, Ccv, Bccv, subject);
    
    g_free (account_name);
    
    e_destination_freev (Tov);
    e_destination_freev (Ccv);
    e_destination_freev (Bccv);
    
    /* Restore the format editing preference */
    format = camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-Format");
    if (format) {
        while (*format && isspace ((unsigned) *format))
            format++;
        
        if (!strcasecmp (format, "text/html"))
            e_msg_composer_set_send_html (new, TRUE);
        else
            e_msg_composer_set_send_html (new, FALSE);
    }
    
    /* Remove any other X-Evolution-* headers that may have been set */
    xev = mail_tool_remove_xevolution_headers (message);
    mail_tool_destroy_xevolution (xev);
    
    /* set extra headers */
    headers = CAMEL_MIME_PART (message)->headers;
    while (headers) {
        if (!is_special_header (headers->name) ||
            !strcasecmp (headers->name, "References") ||
            !strcasecmp (headers->name, "In-Reply-To")) {
            g_ptr_array_add (new->extra_hdr_names, g_strdup (headers->name));
            g_ptr_array_add (new->extra_hdr_values, g_strdup (headers->value));
        }
        
        headers = headers->next;
    }
    
    /* Restore the attachments and body text */
    content = camel_medium_get_content_object (CAMEL_MEDIUM (message));
    if (CAMEL_IS_MULTIPART (content)) {
        CamelMultipart *multipart;
        
        multipart = CAMEL_MULTIPART (content);
        content_type = camel_mime_part_get_content_type (CAMEL_MIME_PART (message));
        
        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (new, multipart, 0);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (new, multipart, 0);
        } else if (header_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (new, multipart, 0);
        } else {
            /* there must be attachments... */
            handle_multipart (new, multipart, 0);
        }
    } else {
        /* We either have a text/plain or a text/html part */
        CamelDataWrapper *contents;
        char *text;
        
        contents = camel_medium_get_content_object (CAMEL_MEDIUM (message));
        text = mail_get_message_body (contents, FALSE, FALSE);
        
        if (text)
            e_msg_composer_set_pending_body (new, text);
    }
    
    /* We wait until now to set the body text because we need to ensure that
     * the attachment bar has all the attachments, before we request them.
     */ 
    e_msg_composer_flush_pending_body (new, TRUE);
    
    set_signature_gui (new);
    
    return new;
}

static void
disable_editor (EMsgComposer *composer)
{
    gtk_widget_set_sensitive (composer->editor, FALSE);
    gtk_widget_set_sensitive (composer->attachment_bar, FALSE);
    
    bonobo_ui_component_set_prop (composer->uic, "/menu/Edit", "sensitive", "0", NULL);
    bonobo_ui_component_set_prop (composer->uic, "/menu/Format", "sensitive", "0", NULL);
    bonobo_ui_component_set_prop (composer->uic, "/menu/Insert", "sensitive", "0", NULL);
}

/**
 * e_msg_composer_new_redirect:
 * @message: The message to use as the source
 * 
 * Create a new message composer widget.
 *
 * Return value: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new_redirect (CamelMimeMessage *message, const char *resent_from)
{
    EMsgComposer *composer;
    const char *subject;
    
    g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (message), NULL);
    
    composer = e_msg_composer_new_with_message (message);
    subject = camel_mime_message_get_subject (message);
    
    composer->redirect = message;
    camel_object_ref (message);
    
    e_msg_composer_set_headers (composer, resent_from, NULL, NULL, NULL, subject);
    
    disable_editor (composer);
    
    return composer;
}


static GList *
add_recipients (GList *list, const char *recips, gboolean decode)
{
    CamelInternetAddress *cia;
    const char *name, *addr;
    int num, i;
    
    cia = camel_internet_address_new ();
    if (decode)
        num = camel_address_decode (CAMEL_ADDRESS (cia), recips);
    else
        num = camel_address_unformat (CAMEL_ADDRESS (cia), recips);
    
    for (i = 0; i < num; i++) {
        if (camel_internet_address_get (cia, i, &name, &addr)) {
            EDestination *dest = e_destination_new ();
            e_destination_set_name (dest, name);
            e_destination_set_email (dest, addr);
            
            list = g_list_append (list, dest);
        }
    }
    
    return list;
}

static void
handle_mailto (EMsgComposer *composer, const char *mailto)
{
    EMsgComposerHdrs *hdrs;
    GList *to = NULL, *cc = NULL, *bcc = NULL;
    EDestination **tov, **ccv, **bccv;
    char *subject = NULL, *body = NULL;
    const char *p, *header;
    size_t nread, nwritten;
    char *content;
    int len, clen;
    CamelURL *url;
    
    /* Parse recipients (everything after ':' until '?' or eos). */
    p = mailto + 7;
    len = strcspn (p, "?");
    if (len) {
        content = g_strndup (p, len);
        camel_url_decode (content);
        to = add_recipients (to, content, FALSE);
        g_free (content);
    }
    
    p += len;
    if (*p == '?') {
        p++;
        
        while (*p) {
            len = strcspn (p, "=&");
            
            /* If it's malformed, give up. */
            if (p[len] != '=')
                break;
            
            header = p;
            p += len + 1;
            
            clen = strcspn (p, "&");
            
            content = g_strndup (p, clen);
            camel_url_decode (content);
            
            if (!strncasecmp (header, "to", len)) {
                to = add_recipients (to, content, FALSE);
            } else if (!strncasecmp (header, "cc", len)) {
                cc = add_recipients (cc, content, FALSE);
            } else if (!strncasecmp (header, "bcc", len)) {
                bcc = add_recipients (bcc, content, FALSE);
            } else if (!strncasecmp (header, "subject", len)) {
                g_free (subject);
                if (g_utf8_validate (content, -1, NULL)) {
                    subject = content;
                    content = NULL;
                } else {
                    subject = g_locale_to_utf8 (content, clen, &nread,
                                    &nwritten, NULL);
                    if (subject) {
                        subject = g_realloc (subject, nwritten + 1);
                        subject[nwritten] = '\0';
                    }
                }
            } else if (!strncasecmp (header, "body", len)) {
                g_free (body);
                if (g_utf8_validate (content, -1, NULL)) {
                    body = content;
                    content = NULL;
                } else {
                    body = g_locale_to_utf8 (content, clen, &nread,
                                 &nwritten, NULL);
                    if (body) {
                        body = g_realloc (body, nwritten + 1);
                        body[nwritten] = '\0';
                    }
                }
            } else if (!strncasecmp (header, "attach", len)) {
                /*Change file url to absolute path*/
                if (!strncasecmp (content, "file:", 5)) {
                    url = camel_url_new (content, NULL);
                    e_msg_composer_attachment_bar_attach (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
                                          url->path);
                    camel_url_free (url);
                } else {
                    e_msg_composer_attachment_bar_attach (E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar),
                                          content);
                }
            } else {
                /* add an arbitrary header? */
                e_msg_composer_add_header (composer, header, content);
            }
            
            g_free (content);
            
            p += clen;
            if (*p == '&') {
                p++;
                if (!strcmp (p, "amp;"))
                    p += 4;
            }
        }
    }
    
    tov  = e_destination_list_to_vector (to);
    ccv  = e_destination_list_to_vector (cc);
    bccv = e_destination_list_to_vector (bcc);
    
    g_list_free (to);
    g_list_free (cc);
    g_list_free (bcc);
    
    hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
    
    e_msg_composer_hdrs_set_to (hdrs, tov);
    e_msg_composer_hdrs_set_cc (hdrs, ccv);
    e_msg_composer_hdrs_set_bcc (hdrs, bccv);
    
    e_destination_freev (tov);
    e_destination_freev (ccv);
    e_destination_freev (bccv);
    
    if (subject) {
        e_msg_composer_hdrs_set_subject (hdrs, subject);
        g_free (subject);
    }
    
    if (body) {
        char *htmlbody;
        
        htmlbody = camel_text_to_html (body, CAMEL_MIME_FILTER_TOHTML_PRE, 0);
        set_editor_text (composer, htmlbody);
        g_free (htmlbody);
    }
}

/**
 * e_msg_composer_new_from_url:
 * @url: a mailto URL
 *
 * Create a new message composer widget, and fill in fields as
 * defined by the provided URL.
 **/
EMsgComposer *
e_msg_composer_new_from_url (const char *url)
{
    EMsgComposer *composer;
    
    g_return_val_if_fail (strncasecmp (url, "mailto:", 7) == 0, NULL);
    
    composer = e_msg_composer_new ();
    if (!composer)
        return NULL;
    
    handle_mailto (composer, url);
    
    return composer;
}


/**
 * e_msg_composer_show_attachments:
 * @composer: A message composer widget
 * @show: A boolean specifying whether the attachment bar should be shown or
 * not
 * 
 * If @show is %FALSE, hide the attachment bar.  Otherwise, show it.
 **/
void
e_msg_composer_show_attachments (EMsgComposer *composer,
                 gboolean show)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    show_attachments (composer, show);
}


/**
 * e_msg_composer_set_headers:
 * @composer: a composer object
 * @from: the name of the account the user will send from,
 * or %NULL for the default account
 * @to: the values for the "To" header
 * @cc: the values for the "Cc" header
 * @bcc: the values for the "Bcc" header
 * @subject: the value for the "Subject" header
 *
 * Sets the headers in the composer to the given values.
 **/
void 
e_msg_composer_set_headers (EMsgComposer *composer,
                const char *from,
                EDestination **to,
                EDestination **cc,
                EDestination **bcc,
                const char *subject)
{
    EMsgComposerHdrs *hdrs;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
    
    e_msg_composer_hdrs_set_to (hdrs, to);
    e_msg_composer_hdrs_set_cc (hdrs, cc);
    e_msg_composer_hdrs_set_bcc (hdrs, bcc);
    e_msg_composer_hdrs_set_subject (hdrs, subject);
    e_msg_composer_hdrs_set_from_account (hdrs, from);
}


/**
 * e_msg_composer_set_body_text:
 * @composer: a composer object
 * @text: the HTML text to initialize the editor with
 *
 * Loads the given HTML text into the editor.
 **/
void
e_msg_composer_set_body_text (EMsgComposer *composer, const char *text)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    set_editor_text (composer, text);
    
    /* set editor text unfortunately kills the signature so we
           have to re-show it */
    e_msg_composer_show_sig_file (composer);
}


/**
 * e_msg_composer_set_body:
 * @composer: a composer object
 * @body: the data to initialize the composer with
 * @mime_type: the MIME type of data
 *
 * Loads the given data into the composer as the message body.
 * This function should only be used by the CORBA composer factory.
 **/
void
e_msg_composer_set_body (EMsgComposer *composer, const char *body,
             const char *mime_type)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    set_editor_text (composer, _("<b>(The composer contains a non-text "
                     "message body, which cannot be "
                     "edited.)<b>"));
    e_msg_composer_set_send_html (composer, FALSE);
    disable_editor (composer);
    
    g_free (composer->mime_body);
    composer->mime_body = g_strdup (body);
    g_free (composer->mime_type);
    composer->mime_type = g_strdup (mime_type);

    if (g_ascii_strncasecmp (composer->mime_type, "text/calendar", 13) == 0) {
        EMsgComposerHdrs *hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
        if (hdrs->account && hdrs->account->pgp_no_imip_sign)
            e_msg_composer_set_pgp_sign (composer, FALSE);
    }
}


/**
 * e_msg_composer_add_header:
 * @composer: a composer object
 * @name: the header name
 * @value: the header value
 *
 * Adds a header with @name and @value to the message. This header
 * may not be displayed by the composer, but will be included in
 * the message it outputs.
 **/
void
e_msg_composer_add_header (EMsgComposer *composer, const char *name,
               const char *value)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (name != NULL);
    g_return_if_fail (value != NULL);
    
    g_ptr_array_add (composer->extra_hdr_names, g_strdup (name));
    g_ptr_array_add (composer->extra_hdr_values, g_strdup (value));
}


/**
 * e_msg_composer_attach:
 * @composer: a composer object
 * @attachment: the CamelMimePart to attach
 *
 * Attaches @attachment to the message being composed in the composer.
 **/
void
e_msg_composer_attach (EMsgComposer *composer, CamelMimePart *attachment)
{
    EMsgComposerAttachmentBar *bar;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (CAMEL_IS_MIME_PART (attachment));
    
    bar = E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar);
    e_msg_composer_attachment_bar_attach_mime_part (bar, attachment);
}


/**
 * e_msg_composer_add_inline_image_from_file:
 * @composer: a composer object
 * @file_name: the name of the file containing the image
 *
 * This reads in the image in @file_name and adds it to @composer
 * as an inline image, to be wrapped in a multipart/related.
 *
 * Return value: the newly-created CamelMimePart (which must be reffed
 * if the caller wants to keep its own reference), or %NULL on error.
 **/
CamelMimePart *
e_msg_composer_add_inline_image_from_file (EMsgComposer *composer,
                       const char *file_name)
{
    char *mime_type, *cid, *url, *name;
    CamelStream *stream;
    CamelDataWrapper *wrapper;
    CamelMimePart *part;
    struct stat statbuf;
    
    /* check for regular file */
    if (stat (file_name, &statbuf) < 0 || !S_ISREG (statbuf.st_mode))
        return NULL;
    
    stream = camel_stream_fs_new_with_name (file_name, O_RDONLY, 0);
    if (!stream)
        return NULL;
    
    wrapper = camel_data_wrapper_new ();
    camel_data_wrapper_construct_from_stream (wrapper, stream);
    camel_object_unref (CAMEL_OBJECT (stream));
    
    mime_type = e_msg_composer_guess_mime_type (file_name);
    camel_data_wrapper_set_mime_type (wrapper, mime_type ? mime_type : "application/octet-stream");
    g_free (mime_type);
    
    part = camel_mime_part_new ();
    camel_medium_set_content_object (CAMEL_MEDIUM (part), wrapper);
    camel_object_unref (wrapper);
    
    cid = header_msgid_generate ();
    camel_mime_part_set_content_id (part, cid);
    name = g_path_get_basename(file_name);
    camel_mime_part_set_filename (part, name);
    g_free(name);
    camel_mime_part_set_encoding (part, CAMEL_MIME_PART_ENCODING_BASE64);
    
    url = g_strdup_printf ("file:%s", file_name);
    g_hash_table_insert (composer->inline_images_by_url, url, part);
    
    url = g_strdup_printf ("cid:%s", cid);
    g_hash_table_insert (composer->inline_images, url, part);
    g_free (cid);
    
    return part;
}   


/**
 * e_msg_composer_add_inline_image_from_mime_part:
 * @composer: a composer object
 * @part: a CamelMimePart containing image data
 *
 * This adds the mime part @part to @composer as an inline image, to
 * be wrapped in a multipart/related.
 **/
void
e_msg_composer_add_inline_image_from_mime_part (EMsgComposer  *composer,
                        CamelMimePart *part)
{
    char *url;
    const char *location, *cid;

    cid = camel_mime_part_get_content_id (part);
    if (!cid) {
        camel_mime_part_set_content_id (part, NULL);
        cid = camel_mime_part_get_content_id (part);
    }
    
    url = g_strdup_printf ("cid:%s", cid);
    g_hash_table_insert (composer->inline_images, url, part);
    camel_object_ref (part);
    
    location = camel_mime_part_get_content_location (part);
    if (location) {
        g_hash_table_insert (composer->inline_images_by_url,
                     g_strdup (location), part);
    }
}


/**
 * e_msg_composer_get_message:
 * @composer: A message composer widget
 * 
 * Retrieve the message edited by the user as a CamelMimeMessage.  The
 * CamelMimeMessage object is created on the fly; subsequent calls to this
 * function will always create new objects from scratch.
 * 
 * Return value: A pointer to the new CamelMimeMessage object
 **/
CamelMimeMessage *
e_msg_composer_get_message (EMsgComposer *composer, gboolean save_html_object_data)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    return build_message (composer, save_html_object_data);
}


CamelMimeMessage *
e_msg_composer_get_message_draft (EMsgComposer *composer)
{
    CamelMimeMessage *msg;
    EAccount *account;
    gboolean old_send_html;
    gboolean old_pgp_sign;
    gboolean old_pgp_encrypt;
    gboolean old_smime_sign;
    gboolean old_smime_encrypt;
    
    /* always save drafts as HTML to preserve formatting */
    old_send_html = composer->send_html;
    composer->send_html = TRUE;
    old_pgp_sign = composer->pgp_sign;
    composer->pgp_sign = FALSE;
    old_pgp_encrypt = composer->pgp_encrypt;
    composer->pgp_encrypt = FALSE;
    old_smime_sign = composer->smime_sign;
    composer->smime_sign = FALSE;
    old_smime_encrypt = composer->smime_encrypt;
    composer->smime_encrypt = FALSE;
    
    msg = e_msg_composer_get_message (composer, TRUE);
    
    composer->send_html = old_send_html;
    composer->pgp_sign = old_pgp_sign;
    composer->pgp_encrypt = old_pgp_encrypt;
    composer->smime_sign = old_smime_sign;
    composer->smime_encrypt = old_smime_encrypt;
    
    /* Attach account info to the draft. */
    account = e_msg_composer_get_preferred_account (composer);
    if (account && account->name)
        camel_medium_set_header (CAMEL_MEDIUM (msg), "X-Evolution-Account", account->name);
    
    /* build_message() set this to text/html since we set composer->send_html to
       TRUE before calling e_msg_composer_get_message() */
    if (!composer->send_html)
        camel_medium_set_header (CAMEL_MEDIUM (msg), "X-Evolution-Format", "text/plain");
    
    return msg;
}


static void
delete_old_signature (EMsgComposer *composer)
{
    CORBA_Environment ev;
    
    /* printf ("delete_old_signature\n"); */
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "cursor-bod", &ev);
    if (GNOME_GtkHTML_Editor_Engine_searchByData (composer->editor_engine, 1, "ClueFlow", "signature", "1", &ev)) {
        /* printf ("found\n"); */
        GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "select-paragraph", &ev);
        GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "delete", &ev);
        /* selection-move-right doesn't succeed means that we are already on the end of document */
        /* if (!rv)
           break; */
        GNOME_GtkHTML_Editor_Engine_setParagraphData (composer->editor_engine, "signature", "0", &ev);
        GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "delete-back", &ev);
    }
    CORBA_exception_free (&ev);
}


/**
 * e_msg_composer_show_sig:
 * @composer: A message composer widget
 * 
 * Set a signature
 **/
void
e_msg_composer_show_sig_file (EMsgComposer *composer)
{
    CORBA_Environment ev;
    char *html;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    /* printf ("e_msg_composer_show_sig_file\n"); */
    /* printf ("set sig '%s' '%s'\n", sig_file, composer->sig_file); */
    
    composer->in_signature_insert = TRUE;
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_freeze (composer->editor_engine, &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "cursor-position-save", &ev);
    GNOME_GtkHTML_Editor_Engine_undoBegin (composer->editor_engine, "Set signature", "Reset signature", &ev);
    
    delete_old_signature (composer);
    html = get_signature_html (composer);
    if (html) {
        if (!GNOME_GtkHTML_Editor_Engine_isParagraphEmpty (composer->editor_engine, &ev))
            GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "insert-paragraph", &ev);
        if (!GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "cursor-backward", &ev))
            GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "insert-paragraph", &ev);
        else
            GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "cursor-forward", &ev);
        /* printf ("insert %s\n", html); */
        GNOME_GtkHTML_Editor_Engine_setParagraphData (composer->editor_engine, "orig", "0", &ev);
        GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "indent-zero", &ev);
        GNOME_GtkHTML_Editor_Engine_insertHTML (composer->editor_engine, html, &ev);
        g_free (html);
    }
    
    GNOME_GtkHTML_Editor_Engine_undoEnd (composer->editor_engine, &ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "cursor-position-restore", &ev);
    GNOME_GtkHTML_Editor_Engine_thaw (composer->editor_engine, &ev);
    CORBA_exception_free (&ev);
    composer->in_signature_insert = FALSE;
    
    /* printf ("e_msg_composer_show_sig_file end\n"); */
}


/**
 * e_msg_composer_set_send_html:
 * @composer: A message composer widget
 * @send_html: Whether the composer should have the "Send HTML" flag set
 * 
 * Set the status of the "Send HTML" toggle item.  The user can override it.
 **/
void
e_msg_composer_set_send_html (EMsgComposer *composer,
                  gboolean send_html)
{
    CORBA_Environment ev;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if (composer->send_html && send_html)
        return;
    
    if (!composer->send_html && !send_html)
        return;
    
    composer->send_html = send_html;
    
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "block-redraw", &ev);
    CORBA_exception_free (&ev);
    
    bonobo_ui_component_set_prop (composer->uic, "/commands/FormatHtml",
                      "state", composer->send_html ? "1" : "0", NULL);
    
    /* let the editor know which mode we are in */
    bonobo_widget_set_property (BONOBO_WIDGET (composer->editor),
                    "FormatHTML", TC_CORBA_boolean,
                    composer->send_html, NULL);
    
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "unblock-redraw", &ev);
    CORBA_exception_free (&ev);
}


/**
 * e_msg_composer_get_send_html:
 * @composer: A message composer widget
 * 
 * Get the status of the "Send HTML mail" flag.
 * 
 * Return value: The status of the "Send HTML mail" flag.
 **/
gboolean
e_msg_composer_get_send_html (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->send_html;
}


/**
 * e_msg_composer_get_preferred_account:
 * @composer: composer
 *
 * Returns the user-specified account (from field).
 */
EAccount *
e_msg_composer_get_preferred_account (EMsgComposer *composer)
{
    EMsgComposerHdrs *hdrs;
    
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
    
    return hdrs->account;
}


/**
 * e_msg_composer_set_pgp_sign:
 * @composer: A message composer widget
 * @send_html: Whether the composer should have the "PGP Sign" flag set
 * 
 * Set the status of the "PGP Sign" toggle item.  The user can override it.
 **/
void
e_msg_composer_set_pgp_sign (EMsgComposer *composer, gboolean pgp_sign)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if (composer->pgp_sign && pgp_sign)
        return;
    if (!composer->pgp_sign && !pgp_sign)
        return;
    
    composer->pgp_sign = pgp_sign;
    
    bonobo_ui_component_set_prop (composer->uic, "/commands/SecurityPGPSign",
                      "state", composer->pgp_sign ? "1" : "0", NULL);
}


/**
 * e_msg_composer_get_pgp_sign:
 * @composer: A message composer widget
 * 
 * Get the status of the "PGP Sign" flag.
 * 
 * Return value: The status of the "PGP Sign" flag.
 **/
gboolean
e_msg_composer_get_pgp_sign (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->pgp_sign;
}


/**
 * e_msg_composer_set_pgp_encrypt:
 * @composer: A message composer widget
 * @send_html: Whether the composer should have the "PGP Encrypt" flag set
 * 
 * Set the status of the "PGP Encrypt" toggle item.  The user can override it.
 **/
void
e_msg_composer_set_pgp_encrypt (EMsgComposer *composer, gboolean pgp_encrypt)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if (composer->pgp_encrypt && pgp_encrypt)
        return;
    if (!composer->pgp_encrypt && !pgp_encrypt)
        return;
    
    composer->pgp_encrypt = pgp_encrypt;
    
    bonobo_ui_component_set_prop (composer->uic, "/commands/SecurityPGPEncrypt",
                      "state", composer->pgp_encrypt ? "1" : "0", NULL);
}


/**
 * e_msg_composer_get_pgp_encrypt:
 * @composer: A message composer widget
 * 
 * Get the status of the "PGP Encrypt" flag.
 * 
 * Return value: The status of the "PGP Encrypt" flag.
 **/
gboolean
e_msg_composer_get_pgp_encrypt (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->pgp_encrypt;
}


/**
 * e_msg_composer_set_smime_sign:
 * @composer: A message composer widget
 * @send_html: Whether the composer should have the "S/MIME Sign" flag set
 * 
 * Set the status of the "S/MIME Sign" toggle item.  The user can override it.
 **/
void
e_msg_composer_set_smime_sign (EMsgComposer *composer, gboolean smime_sign)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if (composer->smime_sign && smime_sign)
        return;
    if (!composer->smime_sign && !smime_sign)
        return;
    
    composer->smime_sign = smime_sign;
    
    bonobo_ui_component_set_prop (composer->uic, "/commands/SecuritySMimeSign",
                      "state", composer->smime_sign ? "1" : "0", NULL);
}


/**
 * e_msg_composer_get_smime_sign:
 * @composer: A message composer widget
 * 
 * Get the status of the "S/MIME Sign" flag.
 * 
 * Return value: The status of the "S/MIME Sign" flag.
 **/
gboolean
e_msg_composer_get_smime_sign (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->smime_sign;
}


/**
 * e_msg_composer_set_smime_encrypt:
 * @composer: A message composer widget
 * @send_html: Whether the composer should have the "S/MIME Encrypt" flag set
 * 
 * Set the status of the "S/MIME Encrypt" toggle item.  The user can override it.
 **/
void
e_msg_composer_set_smime_encrypt (EMsgComposer *composer, gboolean smime_encrypt)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if (composer->smime_encrypt && smime_encrypt)
        return;
    if (!composer->smime_encrypt && !smime_encrypt)
        return;
    
    composer->smime_encrypt = smime_encrypt;
    
    bonobo_ui_component_set_prop (composer->uic, "/commands/SecuritySMimeEncrypt",
                      "state", composer->smime_encrypt ? "1" : "0", NULL);
}


/**
 * e_msg_composer_get_smime_encrypt:
 * @composer: A message composer widget
 * 
 * Get the status of the "S/MIME Encrypt" flag.
 * 
 * Return value: The status of the "S/MIME Encrypt" flag.
 **/
gboolean
e_msg_composer_get_smime_encrypt (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->smime_encrypt;
}


/**
 * e_msg_composer_get_view_from:
 * @composer: A message composer widget
 * 
 * Get the status of the "View From header" flag.
 * 
 * Return value: The status of the "View From header" flag.
 **/
gboolean
e_msg_composer_get_view_from (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->view_from;
}


/**
 * e_msg_composer_set_view_from:
 * @composer: A message composer widget
 * @state: whether to show or hide the From selector
 *
 * Controls the state of the From selector
 */
void
e_msg_composer_set_view_from (EMsgComposer *composer, gboolean view_from)
{
    GConfClient *gconf;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if ((composer->view_from && view_from) ||
        (!composer->view_from && !view_from))
        return;
    
    composer->view_from = view_from;
    bonobo_ui_component_set_prop (composer->uic, "/commands/ViewFrom",
                      "state", composer->view_from ? "1" : "0", NULL);
    
    gconf = gconf_client_get_default ();
    gconf_client_set_bool (gconf, "/apps/evolution/mail/composer/view/From", view_from, NULL);
    g_object_unref (gconf);
    
    e_msg_composer_hdrs_set_visible (E_MSG_COMPOSER_HDRS (composer->hdrs),
                     e_msg_composer_get_visible_flags (composer));
}


/**
 * e_msg_composer_get_view_replyto:
 * @composer: A message composer widget
 * 
 * Get the status of the "View Reply-To header" flag.
 * 
 * Return value: The status of the "View Reply-To header" flag.
 **/
gboolean
e_msg_composer_get_view_replyto (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->view_replyto;
}


/**
 * e_msg_composer_set_view_replyto:
 * @composer: A message composer widget
 * @state: whether to show or hide the Reply-To selector
 *
 * Controls the state of the Reply-To selector
 */
void
e_msg_composer_set_view_replyto (EMsgComposer *composer, gboolean view_replyto)
{
    GConfClient *gconf;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if ((composer->view_replyto && view_replyto) ||
        (!composer->view_replyto && !view_replyto))
        return;
    
    composer->view_replyto = view_replyto;
    bonobo_ui_component_set_prop (composer->uic, "/commands/ViewReplyTo",
                      "state", composer->view_replyto ? "1" : "0", NULL);
    
    gconf = gconf_client_get_default ();
    gconf_client_set_bool (gconf, "/apps/evolution/mail/composer/view/ReplyTo", view_replyto, NULL);
    g_object_unref (gconf);
    
    e_msg_composer_hdrs_set_visible (E_MSG_COMPOSER_HDRS (composer->hdrs),
                     e_msg_composer_get_visible_flags (composer));
}


/**
 * e_msg_composer_get_view_cc:
 * @composer: A message composer widget
 * 
 * Get the status of the "View CC header" flag.
 * 
 * Return value: The status of the "View CC header" flag.
 **/
gboolean
e_msg_composer_get_view_cc (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->view_cc;
}


/**
 * e_msg_composer_set_view_cc:
 * @composer: A message composer widget
 * @state: whether to show or hide the cc view
 *
 * Controls the state of the CC display
 */
void
e_msg_composer_set_view_cc (EMsgComposer *composer, gboolean view_cc)
{
    GConfClient *gconf;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if ((composer->view_cc && view_cc) ||
        (!composer->view_cc && !view_cc))
        return;
    
    composer->view_cc = view_cc;
    bonobo_ui_component_set_prop (composer->uic, "/commands/ViewCC",
                      "state", composer->view_cc ? "1" : "0", NULL);
    
    gconf = gconf_client_get_default ();
    gconf_client_set_bool (gconf, "/apps/evolution/mail/composer/view/Cc", view_cc, NULL);
    g_object_unref (gconf);
    
    e_msg_composer_hdrs_set_visible (E_MSG_COMPOSER_HDRS (composer->hdrs),
                     e_msg_composer_get_visible_flags (composer));
}


/**
 * e_msg_composer_get_view_bcc:
 * @composer: A message composer widget
 * 
 * Get the status of the "View BCC header" flag.
 * 
 * Return value: The status of the "View BCC header" flag.
 **/
gboolean
e_msg_composer_get_view_bcc (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
    
    return composer->view_bcc;
}


/**
 * e_msg_composer_set_view_bcc:
 * @composer: A message composer widget
 * @state: whether to show or hide the bcc view
 *
 * Controls the state of the BCC display
 */
void
e_msg_composer_set_view_bcc (EMsgComposer *composer, gboolean view_bcc)
{
    GConfClient *gconf;
    
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    if ((composer->view_bcc && view_bcc) ||
        (!composer->view_bcc && !view_bcc))
        return;
    
    composer->view_bcc = view_bcc;
    bonobo_ui_component_set_prop (composer->uic, "/commands/ViewBCC",
                      "state", composer->view_bcc ? "1" : "0", NULL);
    
    gconf = gconf_client_get_default ();
    gconf_client_set_bool (gconf, "/apps/evolution/mail/composer/view/Bcc", view_bcc, NULL);
    g_object_unref (gconf);
    
    e_msg_composer_hdrs_set_visible (E_MSG_COMPOSER_HDRS (composer->hdrs),
                     e_msg_composer_get_visible_flags (composer));
}


EDestination **
e_msg_composer_get_recipients (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    return composer->hdrs ? e_msg_composer_hdrs_get_recipients (E_MSG_COMPOSER_HDRS (composer->hdrs)) : NULL;
}

EDestination **
e_msg_composer_get_to (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    return composer->hdrs ? e_msg_composer_hdrs_get_to (E_MSG_COMPOSER_HDRS (composer->hdrs)) : NULL;
}

EDestination **
e_msg_composer_get_cc (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    return composer->hdrs ? e_msg_composer_hdrs_get_cc (E_MSG_COMPOSER_HDRS (composer->hdrs)) : NULL;
}

EDestination **
e_msg_composer_get_bcc (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    return composer->hdrs ? e_msg_composer_hdrs_get_bcc (E_MSG_COMPOSER_HDRS (composer->hdrs)) : NULL;
}

const char *
e_msg_composer_get_subject (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    return composer->hdrs ? e_msg_composer_hdrs_get_subject (E_MSG_COMPOSER_HDRS (composer->hdrs)) : NULL;
}


/**
 * e_msg_composer_guess_mime_type:
 * @file_name: filename
 *
 * Returns the guessed mime type of the file given by #file_name.
 **/
char *
e_msg_composer_guess_mime_type (const char *file_name)
{
    GnomeVFSFileInfo *info;
    GnomeVFSResult result;
    
    info = gnome_vfs_file_info_new ();
    result = gnome_vfs_get_file_info (file_name, info,
                      GNOME_VFS_FILE_INFO_GET_MIME_TYPE |
                      GNOME_VFS_FILE_INFO_FOLLOW_LINKS);
    if (result == GNOME_VFS_OK) {
        char *type;
        
        type = g_strdup (gnome_vfs_file_info_get_mime_type (info));
        gnome_vfs_file_info_unref (info);
        return type;
    } else {
        gnome_vfs_file_info_unref (info);
        return NULL;
    }
}


/**
 * e_msg_composer_set_changed:
 * @composer: An EMsgComposer object.
 *
 * Mark the composer as changed, so before the composer gets destroyed
 * the user will be prompted about unsaved changes.
 **/
void
e_msg_composer_set_changed (EMsgComposer *composer)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    composer->has_changed = TRUE;
}


/**
 * e_msg_composer_unset_changed:
 * @composer: An EMsgComposer object.
 *
 * Mark the composer as unchanged, so no prompt about unsaved changes
 * will appear before destroying the composer.
 **/
void
e_msg_composer_unset_changed (EMsgComposer *composer)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    composer->has_changed = FALSE;
}


gboolean
e_msg_composer_is_dirty (EMsgComposer *composer)
{
    CORBA_Environment ev;
    gboolean rv;
    
    CORBA_exception_init (&ev);
    rv = composer->has_changed
        || (GNOME_GtkHTML_Editor_Engine_hasUndo (composer->editor_engine, &ev) &&
            !GNOME_GtkHTML_Editor_Engine_runCommand (composer->editor_engine, "is-saved", &ev));
    CORBA_exception_free (&ev);

    return rv;
}


void
e_msg_composer_set_enable_autosave  (EMsgComposer *composer, gboolean enabled)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    
    composer->enable_autosave = enabled;
}

static char *
next_word (const char *s, const char **sr)
{
    if (!s || !*s)
        return NULL;
    else {
        const char *begin;
        gunichar uc;
        gboolean cited;
        
        do {
            begin = s;
            cited = FALSE;
            uc = g_utf8_get_char (s);
            if (uc == 0)
                return NULL;
            s  = g_utf8_next_char (s);
        } while (!html_selection_spell_word (uc, &cited) && !cited && s);
        
        /* we are at beginning of word */
        if (s && *s) {
            gboolean cited_end;
            
            cited_end = FALSE;
            uc = g_utf8_get_char (s);
            
            /* go to end of word */
            while (html_selection_spell_word (uc, &cited_end) || (!cited && cited_end)) {
                cited_end = FALSE;
                s  = g_utf8_next_char (s);
                uc = g_utf8_get_char (s);
                if (uc == 0)
                    break;
            }
            *sr = s;
            return s ? g_strndup (begin, s - begin) : g_strdup (begin);
        } else
            return NULL;
    }
}


void
e_msg_composer_ignore (EMsgComposer *composer, const char *str)
{
    CORBA_Environment ev;
    char *word;
    
    if (!str)
        return;
    
    CORBA_exception_init (&ev);
    while ((word = next_word (str, &str))) {
        /* printf ("ignore word %s\n", word); */
        GNOME_GtkHTML_Editor_Engine_ignoreWord (composer->editor_engine, word, &ev);
        g_free (word);
    }
    CORBA_exception_free (&ev);
}


void
e_msg_composer_drop_editor_undo (EMsgComposer *composer)
{
    CORBA_Environment ev;
    
    CORBA_exception_init (&ev);
    GNOME_GtkHTML_Editor_Engine_dropUndo (composer->editor_engine, &ev);
    CORBA_exception_free (&ev);
}


gboolean
e_msg_composer_request_close_all (void)
{
    GSList *p, *pnext;

    for (p = all_composers; p != NULL; p = pnext) {
        pnext = p->next;
        do_exit (E_MSG_COMPOSER (p->data));
    }

    if (all_composers == NULL)
        return TRUE;
    else
        return FALSE;
}

void
e_msg_composer_check_autosave(GtkWindow *parent)
{
    if (am == NULL)
        am = autosave_manager_new();

    if (am->ask) {
        am->ask = FALSE;
        autosave_manager_query_load_orphans (am, parent);
        am->ask = TRUE;
    }
}