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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-msg-composer.c
 *
 * Copyright (C) 1999  Helix Code, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli
 */

/*

   TODO

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

*/

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

#include <bonobo.h>
#include <bonobo/bonobo-stream-memory.h>
#include <glade/glade.h>
#include <gnome.h>
#include <libgnorba/gnorba.h>
#include <gtkhtml/gtkhtml.h>

#include <camel/camel.h>

#include "../mail/mail.h"

#include "e-util/e-html-utils.h"
#include "e-util/e-setup.h"
#include "e-util/e-gui-utils.h"
#include "widgets/misc/e-scroll-frame.h"

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

#define HTML_EDITOR_CONTROL_ID "OAFIID:control:html-editor:63c5499b-8b0c-475a-9948-81ec96a9662c"


#define DEFAULT_WIDTH 600
#define DEFAULT_HEIGHT 500

enum {
    SEND,
    POSTPONE,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

static GnomeAppClass *parent_class = NULL;

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


static GtkWidget *
create_editor (EMsgComposer *composer)
{
    GtkWidget *control;

    control = bonobo_widget_new_control (HTML_EDITOR_CONTROL_ID,
                         bonobo_object_corba_objref (BONOBO_OBJECT (composer->uih)));
    if (control == NULL) {
        g_error ("Cannot activate `%s'. Did you build gtkhtml with Bonobo and OAF support?", HTML_EDITOR_CONTROL_ID);
        return NULL;
    }

    return control;
}

static char *
get_text (Bonobo_PersistStream persist, char *format)
{
    BonoboStream *stream;
    BonoboStreamMem *stream_mem;
    CORBA_Environment ev;
    char *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_txt (&ev));
        return NULL;
    }
    
    CORBA_exception_free (&ev);

    stream_mem = BONOBO_STREAM_MEM (stream);
    text = g_malloc (stream_mem->pos + 1);
    memcpy (text, stream_mem->buffer, stream_mem->pos);
    text[stream_mem->pos] = 0;
    bonobo_object_unref (BONOBO_OBJECT(stream));

    return text;
}

#define LINE_LEN 72

/* This might be a temporary function... the GtkHTML export interfaces are
 * not yet complete, so some or all of this may move into GtkHTML.
 */
static char *
format_text (char *text)
{
    GString *out;
    char *s, *space, *outstr;
    int len, tabbing, i;
    gboolean linestart = TRUE, cited = FALSE;

    tabbing = 0;        /* Shut down compiler.  */
    len = strlen (text);
    out = g_string_sized_new (len + len / LINE_LEN);

    s = text;
    while (*s) {
        if (linestart) {
            tabbing = 0;
            while (*s == '\t') {
                s++;
                tabbing++;
            }
            cited = (tabbing == 0 && *s == '>');
        }

        len = strcspn (s, "\n");
        if (!cited && len > LINE_LEN - tabbing * 8) {
            /* If we can break anywhere between s and
             * s + LINE_LEN, do that. We can break between
             * space and anything but &nbsp;
             */
            space = s + LINE_LEN - tabbing * 8;
            while (space > s && (*space != ' '
                         || (*(space + 1) == '\240')
                         || (*(space - 1) == '\240')))
                space--;

            if (space != s)
                len = space - s;
        }

        /* Do initial tabs */
        for (i = 0; i < tabbing; i++)
            g_string_append_c (out, '\t');

        /* Copy the line... */
        while (len--) {
            g_string_append_c (out, *s == '\240' ? ' ' : *s);
            s++;
        }

        /* Eat whitespace... */
        while (*s == ' ' || *s == '\240')
            s++;
        if (*s == '\n') {
            s++;
            linestart = TRUE;
        } else
            linestart = FALSE;

        /* And end the line. */
        g_string_append_c (out, '\n');
    }

    outstr = out->str;
    g_string_free (out, FALSE);
    return outstr;
}

typedef enum {
    MSG_FORMAT_PLAIN,
    MSG_FORMAT_ALTERNATIVE,
} MsgFormat;

/* This functions builds a CamelMimeMessage for the message that the user has
   composed in `composer'.  */
static CamelMimeMessage *
build_message (EMsgComposer *composer)
{
    EMsgComposerAttachmentBar *attachment_bar =
        E_MSG_COMPOSER_ATTACHMENT_BAR (composer->attachment_bar);
    CamelMimeMessage *new;
    CamelMultipart *body = NULL;
    CamelMimePart *part;
    char *html = NULL, *plain = NULL, *fmt = NULL;
    int i;
    MsgFormat type = MSG_FORMAT_ALTERNATIVE;

    if (composer->persist_stream_interface == CORBA_OBJECT_NIL)
        return NULL;

    if (composer->send_html)
        type = MSG_FORMAT_ALTERNATIVE;
    else
        type = MSG_FORMAT_PLAIN;

    new = camel_mime_message_new ();

    e_msg_composer_hdrs_to_message (E_MSG_COMPOSER_HDRS (composer->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]);
    }
    
    plain = get_text (composer->persist_stream_interface, "text/plain");
    fmt = format_text (plain);
    g_free (plain);
    
    if (type != MSG_FORMAT_PLAIN)
        html = get_text (composer->persist_stream_interface, "text/html");

    if (type == MSG_FORMAT_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_mime_part_set_content (part, fmt, strlen (fmt), "text/plain");
        g_free (fmt);
        camel_multipart_add_part (body, part);
        gtk_object_unref (GTK_OBJECT (part));
        
        part = camel_mime_part_new ();
        camel_mime_part_set_content (part, html, strlen (html), "text/html");
        g_free (html);
        camel_multipart_add_part (body, part);
        gtk_object_unref (GTK_OBJECT (part));
    }

    if (e_msg_composer_attachment_bar_get_num_attachments (attachment_bar)) {
        CamelMultipart *multipart = camel_multipart_new ();

        /* Generate a random boundary. */
        camel_multipart_set_boundary (multipart, NULL);

        part = camel_mime_part_new ();
        switch (type) {
        case MSG_FORMAT_ALTERNATIVE:
            camel_medium_set_content_object (CAMEL_MEDIUM (part),
                             CAMEL_DATA_WRAPPER (body));
            gtk_object_unref (GTK_OBJECT (body));
            break;
        case MSG_FORMAT_PLAIN:
            camel_mime_part_set_content (part, fmt, strlen (fmt), "text/plain");
            g_free(fmt);
            break;
        }
        camel_multipart_add_part (multipart, part);
        gtk_object_unref (GTK_OBJECT (part));

        e_msg_composer_attachment_bar_to_multipart (attachment_bar, multipart);

        camel_medium_set_content_object (CAMEL_MEDIUM (new), CAMEL_DATA_WRAPPER (multipart));
        gtk_object_unref (GTK_OBJECT (multipart));
    } else {
        CamelDataWrapper *cdw;
        CamelStream *stream;
        switch (type) {
        case MSG_FORMAT_ALTERNATIVE:
            camel_medium_set_content_object (CAMEL_MEDIUM (new), CAMEL_DATA_WRAPPER (body));
            gtk_object_unref (GTK_OBJECT (body));
            break;
        case MSG_FORMAT_PLAIN:
            stream = camel_stream_mem_new_with_buffer (fmt, strlen (fmt));
            cdw = camel_data_wrapper_new ();
            camel_data_wrapper_construct_from_stream (cdw, stream);
            gtk_object_unref (GTK_OBJECT (stream));
            
            camel_data_wrapper_set_mime_type (cdw, "text/plain");

            camel_medium_set_content_object (CAMEL_MEDIUM (new), CAMEL_DATA_WRAPPER (cdw));
            gtk_object_unref (GTK_OBJECT (cdw));
            g_free (fmt);
            break;

        }
    }

    return new;
}

static char *
get_signature (const char *sigfile)
{
    char *rawsig;
    static char *htmlsig = NULL;
    static time_t sigmodtime = -1;
    struct stat st;
    int fd;

    if (!sigfile || !*sigfile) {
        return NULL;
    }

    if (stat (sigfile, &st) == -1) {
        char *msg;

        msg = g_strdup_printf ("Could not open signature file %s:\n%s",
                       sigfile, g_strerror (errno));
        gnome_error_dialog (msg);
        g_free (msg);

        return NULL;
    }

    if (st.st_mtime == sigmodtime)
        return htmlsig;

    rawsig = g_malloc (st.st_size + 1);
    fd = open (sigfile, O_RDONLY);
    if (fd == -1) {
        char *msg;

        msg = g_strdup_printf ("Could not open signature file %s:\n%s",
                       sigfile, g_strerror (errno));
        gnome_error_dialog (msg);
        g_free (msg);

        return NULL;
    }

    read (fd, rawsig, st.st_size);
    rawsig[st.st_size] = '\0';
    close (fd);

    htmlsig = e_text_to_html (rawsig, 0);
    sigmodtime = st.st_mtime;

    return htmlsig;
}

static void
set_editor_text (BonoboWidget *editor, const char *sig_file, const char *text)
{
    Bonobo_PersistStream persist;
    BonoboStream *stream;
    CORBA_Environment ev;
    char *sig, *fulltext;

    sig = get_signature (sig_file);
    if (sig) {
        if (!strncmp ("-- \n", sig, 3))
            fulltext = g_strdup_printf ("%s<br>\n<pre>\n%s</pre>",
                            text, sig);
        else
            fulltext = g_strdup_printf ("%s<br>\n<pre>\n-- \n%s</pre>",
                            text, sig);
    } else {
        if (!*text)
            return;
        fulltext = (char*)text;
    }

    CORBA_exception_init (&ev);
    persist = (Bonobo_PersistStream)
        bonobo_object_client_query_interface (
            bonobo_widget_get_server (editor),
            "IDL:Bonobo/PersistStream:1.0",
            &ev);
    g_assert (persist != CORBA_OBJECT_NIL);

    stream = bonobo_stream_mem_create (fulltext, strlen (fulltext),
                       TRUE, FALSE);
    if (sig)
        g_free (fulltext);
    Bonobo_PersistStream_load (persist, (Bonobo_Stream)bonobo_object_corba_objref (BONOBO_OBJECT (stream)), "text/html", &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        /* FIXME. Some error message. */
        return;
    }
    if (ev._major != CORBA_SYSTEM_EXCEPTION)
        CORBA_Object_release (persist, &ev);

    Bonobo_Unknown_unref (persist, &ev);
    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_scroll_frame);
        gtk_widget_show (composer->attachment_bar);
    } else {
        gtk_widget_hide (composer->attachment_scroll_frame);
        gtk_widget_hide (composer->attachment_bar);
    }

    composer->attachment_bar_visible = show;

    /* Update the GUI.  */

#if 0
    gtk_check_menu_item_set_active
        (GTK_CHECK_MENU_ITEM
         (glade_xml_get_widget (composer->menubar_gui,
                    "menu_view_attachments")),
         show);
#endif

    /* XXX we should update the toggle toolbar item as well.  At
       this point, it is not a toggle because Glade is broken.  */
}

static void
save (EMsgComposer *composer,
      const char *file_name)
{
    CORBA_Environment ev;
    char *my_file_name;

    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;

    CORBA_exception_init (&ev);

    Bonobo_PersistFile_save (composer->persist_file_interface, my_file_name, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        e_notice (GTK_WINDOW (composer), GNOME_MESSAGE_BOX_ERROR,
              _("Error saving file: %s"), g_basename (file_name));
    }

    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)
        e_notice (GTK_WINDOW (composer), GNOME_MESSAGE_BOX_ERROR,
              _("Error loading file: %s"), g_basename (file_name));

    CORBA_exception_free (&ev);
}

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

enum { REPLY_YES = 0, REPLY_NO, REPLY_CANCEL };

static void
exit_dialog_cb (int reply, EMsgComposer *composer)
{
    extern CamelFolder *drafts_folder;
    CamelMimeMessage *msg;
    CamelException *ex;
    char *reason;
    
    switch (reply) {
    case REPLY_YES:
        msg = e_msg_composer_get_message (composer);

        ex = camel_exception_new ();
        camel_folder_append_message (drafts_folder, msg, CAMEL_MESSAGE_DRAFT, ex);
        if (camel_exception_is_set (ex))
            goto error;
        
        camel_exception_free (ex);
    case REPLY_NO:
        gtk_widget_destroy (GTK_WIDGET (composer));
        break;
    case REPLY_CANCEL:
    default:
    }
    
    return;
    
 error:
    reason = g_strdup_printf ("Error saving composition to 'Drafts': %s",
                  camel_exception_get_description (ex));
    
    camel_exception_free (ex);
    gnome_warning_dialog_parented (reason, GTK_WINDOW (composer));
    g_free (reason);
}

static void
do_exit (EMsgComposer *composer)
{
    GtkWidget *dialog;
    GtkWidget *label;
    gint button;
    
    dialog = gnome_dialog_new (_("Evolution"),
                   GNOME_STOCK_BUTTON_YES,      /* Save */
                   GNOME_STOCK_BUTTON_NO,       /* Don't save */
                   GNOME_STOCK_BUTTON_CANCEL,   /* Cancel */
                   NULL);
    
    label = gtk_label_new (_("This message has not been sent.\n\nDo you wish to save your changes?"));
    gtk_box_pack_start (GTK_BOX (GNOME_DIALOG (dialog)->vbox), label, TRUE, TRUE, 0);
    gtk_widget_show (label);
    gnome_dialog_set_parent (GNOME_DIALOG (dialog), GTK_WINDOW (composer));
    gnome_dialog_set_default (GNOME_DIALOG (dialog), 0);
    button = gnome_dialog_run_and_close (GNOME_DIALOG (dialog));
    
    exit_dialog_cb (button, composer);
}


/* Menu callbacks.  */

static void
menu_file_open_cb (BonoboUIHandler *uih,
           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 (BonoboUIHandler *uih,
           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_get_current_file (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 (BonoboUIHandler *uih,
              void *data,
              const char *path)
{
    EMsgComposer *composer;

    composer = E_MSG_COMPOSER (data);

    save (composer, NULL);
}

static void
menu_file_send_cb (BonoboUIHandler *uih,
           void *data,
           const char *path)
{
    /* FIXME: We should really write this to Outbox in the future? */
    gtk_signal_emit (GTK_OBJECT (data), signals[SEND]);
}

static void
menu_file_close_cb (BonoboUIHandler *uih,
            void *data,
            const char *path)
{
    EMsgComposer *composer;

    composer = E_MSG_COMPOSER (data);
    do_exit (composer);
}
    
static void
menu_file_add_attachment_cb (BonoboUIHandler *uih,
                 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_view_attachments_activate_cb (BonoboUIHandler *uih,
                   void *data,
                   const char *path)
{
    gboolean state;

    state = bonobo_ui_handler_menu_get_toggle_state (uih, path);
    e_msg_composer_show_attachments (E_MSG_COMPOSER (data), state);
}

#if 0
static void
insert_file_ok_cb (GtkWidget *widget, void *user_data)
{
    GtkFileSelection *fs;
    GdkAtom selection_atom = GDK_NONE;
    char *name;
    EMsgComposer *composer;
    struct stat sb;
    int fd;
    guint8 *buffer;
    size_t bufsz, actual;

    fs = GTK_FILE_SELECTION (gtk_widget_get_ancestor (widget,
                              GTK_TYPE_FILE_SELECTION));
    composer = E_MSG_COMPOSER (user_data);
    name = gtk_file_selection_get_filename (fs);
                                       
    if (stat (name, &sb) < 0) {
        GtkWidget *dlg;

        dlg = gnome_error_dialog_parented( _("That file does not exist."),
                           GTK_WINDOW (fs));
        gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
        gtk_widget_destroy (GTK_WIDGET (dlg));
        return;
    }

    if( !(S_ISREG (sb.st_mode)) ) {
        GtkWidget *dlg;

        dlg = gnome_error_dialog_parented( _("That is not a regular file."),
                           GTK_WINDOW (fs));
        gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
        gtk_widget_destroy (GTK_WIDGET (dlg));
        return;
    }

    if (access (name, R_OK) != 0) {
        GtkWidget *dlg;

        dlg = gnome_error_dialog_parented( _("That file exists but is not readable."),
                           GTK_WINDOW (fs));
        gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
        gtk_widget_destroy (GTK_WIDGET (dlg));
        return;
    }

    if ((fd = open (name, O_RDONLY)) < 0) {
        GtkWidget *dlg;

        dlg = gnome_error_dialog_parented( _("That file appeared accesible but open(2) failed."),
                           GTK_WINDOW (fs));
        gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
        gtk_widget_destroy (GTK_WIDGET (dlg));
        return;
    }

    buffer = NULL;
    bufsz = 0;
    actual = 0;
    #define CHUNK 5120

    while( 1 ) {
        ssize_t chunk;

        if( bufsz - actual < CHUNK ) {
            bufsz += CHUNK;

            if( bufsz >= 102400 ) {
                GtkWidget *dlg;
                gint result;

                dlg = gnome_dialog_new( _("The file is very large (more than 100K).\n"
                              "Are you sure you wish to insert it?"),
                            GNOME_STOCK_BUTTON_YES,
                            GNOME_STOCK_BUTTON_NO,
                            NULL);
                gnome_dialog_set_parent (GNOME_DIALOG (dlg), GTK_WINDOW (fs));
                result = gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
                gtk_widget_destroy (GTK_WIDGET (dlg));
                
                if (result == 1)
                    goto cleanup;
            }

            buffer = g_realloc (buffer, bufsz * sizeof (guint8));
        }

        chunk = read (fd, &(buffer[actual]), CHUNK);

        if (chunk < 0) {
            GtkWidget *dlg;

            dlg = gnome_error_dialog_parented( _("An error occurred while reading the file."),
                               GTK_WINDOW (fs));
            gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
            gtk_widget_destroy (GTK_WIDGET (dlg));
            goto cleanup;
        }

        if( chunk == 0 )
            break;

        actual += chunk;
    }

    buffer[actual] = '\0';

    if (selection_atom == GDK_NONE)
        selection_atom = gdk_atom_intern ("TEMP_PASTE", FALSE);
    gtk_object_set_data (GTK_OBJECT (fs), "ev_file_buffer", buffer);
    gtk_selection_owner_set (GTK_WIDGET (fs), selection_atom, GDK_CURRENT_TIME);
    /*gtk_html_paste (composer->send_html);*/

 cleanup:
    close( fd );
    g_free( buffer );
    gtk_widget_destroy (GTK_WIDGET(fs));
}

static void fs_selection_get (GtkWidget *widget, GtkSelectionData *sdata,
                  guint info, guint time)
{
    gchar *buffer;
    GdkAtom encoding;
    gint format;
    guchar *ctext;
    gint length;

    buffer = gtk_object_get_data (GTK_OBJECT (widget), "ev_file_buffer");
    if (gdk_string_to_compound_text (buffer, &encoding, &format, &ctext,
                     &length) == Success)
        gtk_selection_data_set (sdata, encoding, format, ctext, length);
    g_free (buffer);
    gtk_object_remove_data (GTK_OBJECT (widget), "ev_file_buffer");
}

#endif
static void
menu_file_insert_file_cb (BonoboUIHandler *uih,
        void *data,
        const char *path)
{
#if 0
    EMsgComposer *composer;
    GtkFileSelection *fs;

    composer = E_MSG_COMPOSER (data);

    fs = GTK_FILE_SELECTION (gtk_file_selection_new ("Choose File"));
    /* FIXME: remember the location or something */
    /*gtk_file_selection_set_filename( fs, g_get_home_dir() );*/
    gtk_signal_connect (GTK_OBJECT (fs->ok_button), "clicked",
                GTK_SIGNAL_FUNC (insert_file_ok_cb), data);
    gtk_signal_connect_object (GTK_OBJECT (fs->cancel_button), 
                   "clicked",
                   GTK_SIGNAL_FUNC (gtk_widget_destroy), 
                   GTK_OBJECT (fs));
    gtk_widget_show (GTK_WIDGET(fs));
#else
    g_message ("Insert file is unimplemented! oh no!");
#endif
}

static void
menu_format_html_cb (BonoboUIHandler *uih,
             void *data,
             const char *path)
{
    EMsgComposer *composer;
    gboolean new_state;

    composer = E_MSG_COMPOSER (data);

    new_state = bonobo_ui_handler_menu_get_toggle_state (uih, path);
    if ((new_state && composer->send_html) || (! new_state && ! composer->send_html))
        return;

    e_msg_composer_set_send_html (composer, new_state);
}


/* Menu bar creation.  */

static void
create_menubar_file (EMsgComposer *composer,
             BonoboUIHandler *uih)
{
    bonobo_ui_handler_menu_new_subtree (uih, "/File",
                        _("_File"),
                        NULL, -1,
                        BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                        0, 0);

    bonobo_ui_handler_menu_new_item (uih, "/File/Open",
                     _("_Open..."),
                     _("Load a previously saved message"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_OPEN,
                     0, 0,
                     menu_file_open_cb, composer);

    bonobo_ui_handler_menu_new_item (uih, "/File/Save",
                     _("_Save..."),
                     _("Save message"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_SAVE,
                     0, 0,
                     menu_file_save_cb, composer);

    bonobo_ui_handler_menu_new_item (uih, "/File/Save as",
                     _("_Save as..."),
                     _("Save message with a different name"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_SAVE_AS,
                     0, 0,
                     menu_file_save_as_cb, composer);

    bonobo_ui_handler_menu_new_item (uih, "/File/Save in folder",
                     _("Save in _folder..."),
                     _("Save the message in a specified folder"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0,
                     NULL, composer);

    bonobo_ui_handler_menu_new_separator (uih, "/File/Separator1", -1);

    bonobo_ui_handler_menu_new_item (uih, "/File/Insert text file",
                     _("_Insert text file... (FIXME)"),
                     _("Insert a file as text into the message"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0,
                     menu_file_insert_file_cb, composer);

    bonobo_ui_handler_menu_new_separator (uih, "/File/Separator2", -1);

    bonobo_ui_handler_menu_new_item (uih, "/File/Send",
                     _("_Send"),
                     _("Send the message"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_MAIL_SND,
                     0, 0,
                     menu_file_send_cb, composer);

    bonobo_ui_handler_menu_new_separator (uih, "/File/Separator3", -1);

    bonobo_ui_handler_menu_new_item (uih, "/File/Close",
                     _("_Close..."),
                     _("Quit the message composer"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_CLOSE,
                     0, 0,
                     menu_file_close_cb, composer);
}

static void
create_menubar_edit (EMsgComposer *composer,
             BonoboUIHandler *uih)
{
    bonobo_ui_handler_menu_new_subtree (uih, "/Edit",
                        _("_Edit"),
                        NULL, -1,
                        BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                        0, 0);
}

static void
create_menubar_format (EMsgComposer *composer,
               BonoboUIHandler *uih)
{
    bonobo_ui_handler_menu_new_subtree (uih, "/Format",
                        _("_Format"),
                        NULL, -1,
                        BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                        0, 0);

    bonobo_ui_handler_menu_new_toggleitem (uih, "/Format/HTML",
                           _("HTML"),
                           _("Send the mail in HTML format"),
                           -1,
                           0, 0,
                           menu_format_html_cb, composer);

    bonobo_ui_handler_menu_set_toggle_state (uih, "/Format/HTML", composer->send_html);
}

static void
create_menubar_view (EMsgComposer *composer,
             BonoboUIHandler *uih)
{
    bonobo_ui_handler_menu_new_subtree (uih, "/View",
                        _("_View"),
                        NULL, -1,
                        BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                        0, 0);

    bonobo_ui_handler_menu_new_toggleitem (uih, "/View/Show attachments",
                           _("Show _attachments"),
                           _("Show/hide attachments"),
                           -1,
                           0, 0,
                           menu_view_attachments_activate_cb, composer);
}

static void
create_menubar (EMsgComposer *composer)
{
    BonoboUIHandler *uih;

    uih = composer->uih;
    bonobo_ui_handler_create_menubar (uih);

    create_menubar_file   (composer, uih);
    create_menubar_edit   (composer, uih);
    create_menubar_format (composer, uih);
    create_menubar_view   (composer, uih);
}


/* Toolbar implementation.  */

static void
create_toolbar (EMsgComposer *composer)
{
    BonoboUIHandler *uih;

    uih = composer->uih;
    bonobo_ui_handler_create_toolbar (uih, "Toolbar");

    bonobo_ui_handler_toolbar_new_item (uih,
                        "/Toolbar/Send",
                        _("Send"),
                        _("Send this message"),
                        -1,
                        BONOBO_UI_HANDLER_PIXMAP_STOCK,
                        GNOME_STOCK_PIXMAP_MAIL_SND,
                        0, 0,
                        menu_file_send_cb, composer);

    bonobo_ui_handler_toolbar_new_item (uih,
                        "/Toolbar/Attach",
                        _("Attach"),
                        _("Attach a file"),
                        -1,
                        BONOBO_UI_HANDLER_PIXMAP_STOCK,
                        GNOME_STOCK_PIXMAP_ATTACH,
                        0, 0,
                        menu_file_add_attachment_cb, composer);
}


/* Miscellaneous callbacks.  */

static void
attachment_bar_changed_cb (EMsgComposerAttachmentBar *bar,
               void *data)
{
    EMsgComposer *composer;
    
    composer = E_MSG_COMPOSER (data);

    if (e_msg_composer_attachment_bar_get_num_attachments (bar) > 0)
        e_msg_composer_show_attachments (composer, TRUE);
    else
        e_msg_composer_show_attachments (composer, FALSE);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    EMsgComposer *composer;
    CORBA_Environment ev;

    composer = E_MSG_COMPOSER (object);

    bonobo_object_unref (BONOBO_OBJECT (composer->uih));

    /* FIXME?  I assume the Bonobo widget will get destroyed
           normally?  */

    if (composer->address_dialog != NULL)
        gtk_widget_destroy (composer->address_dialog);
    if (composer->hdrs != NULL)
        gtk_widget_destroy (composer->hdrs);

    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);
    }

    CORBA_exception_init (&ev);

    if (composer->persist_stream_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (composer->persist_stream_interface, &ev);
        CORBA_Object_release (composer->persist_stream_interface, &ev);
    }

    if (composer->persist_file_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (composer->persist_file_interface, &ev);
        CORBA_Object_release (composer->persist_file_interface, &ev);
    }

    CORBA_exception_free (&ev);

    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
class_init (EMsgComposerClass *klass)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;

    object_class = GTK_OBJECT_CLASS (klass);
    widget_class = GTK_WIDGET_CLASS (klass);

    object_class->destroy = destroy;

    widget_class->delete_event = delete_event;

    parent_class = gtk_type_class (gnome_app_get_type ());

    signals[SEND] =
        gtk_signal_new ("send",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (EMsgComposerClass, send),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    signals[POSTPONE] =
        gtk_signal_new ("postpone",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (EMsgComposerClass, postpone),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}

static void
init (EMsgComposer *composer)
{
    composer->uih                      = NULL;

    composer->hdrs                     = NULL;
    composer->extra_hdr_names          = g_ptr_array_new ();
    composer->extra_hdr_values         = g_ptr_array_new ();

    composer->editor                   = NULL;

    composer->address_dialog           = NULL;

    composer->attachment_bar           = NULL;
    composer->attachment_scroll_frame  = NULL;

    composer->persist_file_interface   = CORBA_OBJECT_NIL;
    composer->persist_stream_interface = CORBA_OBJECT_NIL;

    composer->attachment_bar_visible   = FALSE;
    composer->send_html                = FALSE;
}

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

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

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

    return type;
}

/**
 * e_msg_composer_construct:
 * @composer: A message composer widget
 * 
 * Construct @composer.
 **/
void
e_msg_composer_construct (EMsgComposer *composer)
{
    GtkWidget *vbox;
    BonoboObject *editor_server;

    g_return_if_fail (gtk_main_level () > 0);

    gtk_window_set_default_size (GTK_WINDOW (composer),
                     DEFAULT_WIDTH, DEFAULT_HEIGHT);

    gnome_app_construct (GNOME_APP (composer), "e-msg-composer",
                 _("Compose a message"));

    composer->uih = bonobo_ui_handler_new ();
    bonobo_ui_handler_set_app (composer->uih, GNOME_APP (composer));

    vbox = gtk_vbox_new (FALSE, 0);

    composer->hdrs = e_msg_composer_hdrs_new ();
    gtk_box_pack_start (GTK_BOX (vbox), composer->hdrs, FALSE, TRUE, 0);
    gtk_widget_show (composer->hdrs);

    /* Editor component.  */

    create_menubar (composer);
    create_toolbar (composer);
    composer->editor = create_editor (composer);

    editor_server = BONOBO_OBJECT (bonobo_widget_get_server (BONOBO_WIDGET (composer->editor)));
    
    composer->persist_file_interface
        = bonobo_object_query_interface (editor_server, "IDL:Bonobo/PersistFile:1.0");
    composer->persist_stream_interface
        = bonobo_object_query_interface (editor_server, "IDL:Bonobo/PersistStream:1.0");

    gtk_widget_show (composer->editor);
    gtk_box_pack_start (GTK_BOX (vbox), composer->editor, TRUE, TRUE, 0);
    gtk_widget_show (composer->editor);

    /* Attachment editor, wrapped into an EScrollFrame.  We don't
           show it for now.  */

    composer->attachment_scroll_frame = e_scroll_frame_new (NULL, NULL);
    e_scroll_frame_set_shadow_type (E_SCROLL_FRAME (composer->attachment_scroll_frame),
                    GTK_SHADOW_IN);
    e_scroll_frame_set_policy (E_SCROLL_FRAME (composer->attachment_scroll_frame),
                   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_scroll_frame),
               composer->attachment_bar);
    gtk_box_pack_start (GTK_BOX (vbox),
                composer->attachment_scroll_frame,
                FALSE, TRUE, GNOME_PAD_SMALL);

    gtk_signal_connect (GTK_OBJECT (composer->attachment_bar), "changed",
                GTK_SIGNAL_FUNC (attachment_bar_changed_cb), composer);

    gnome_app_set_contents (GNOME_APP (composer), vbox);
    gtk_widget_show (vbox);

    e_msg_composer_show_attachments (composer, FALSE);

    /* Set focus on the `To:' field.  */

    gtk_widget_grab_focus (e_msg_composer_hdrs_get_to_entry (E_MSG_COMPOSER_HDRS (composer->hdrs)));
}

/**
 * e_msg_composer_new:
 *
 * Create a new message composer widget.  This function must be called
 * within the GTK+ main loop, or it will fail.
 * 
 * Return value: A pointer to the newly created widget
 **/
GtkWidget *
e_msg_composer_new (void)
{
    GtkWidget *new;

    g_return_val_if_fail (gtk_main_level () > 0, NULL);
 
    new = gtk_type_new (e_msg_composer_get_type ());
    e_msg_composer_construct (E_MSG_COMPOSER (new));

    /* Load the signature, if any. */
    set_editor_text (BONOBO_WIDGET (E_MSG_COMPOSER (new)->editor), 
             NULL, "");

    return new;
}

/**
 * e_msg_composer_new_with_sig_file:
 *
 * Create a new message composer widget.  This function must be called
 * within the GTK+ main loop, or it will fail.  Sets the signature
 * file.
 * 
 * Return value: A pointer to the newly created widget
 **/
GtkWidget *
e_msg_composer_new_with_sig_file (const char *sig_file)
{
    GtkWidget *new;
    
    g_return_val_if_fail (gtk_main_level () > 0, NULL);
    
    new = gtk_type_new (e_msg_composer_get_type ());
    e_msg_composer_construct (E_MSG_COMPOSER (new));
    
    /* Load the signature, if any. */
    set_editor_text (BONOBO_WIDGET (E_MSG_COMPOSER (new)->editor), 
             sig_file, "");
    
    return new;
}

/**
 * e_msg_composer_new_with_message:
 *
 * Create a new message composer widget.  This function must be called
 * within the GTK+ main loop, or it will fail.
 * 
 * Return value: A pointer to the newly created widget
 **/
GtkWidget *
e_msg_composer_new_with_message (CamelMimeMessage *msg)
{
    const CamelInternetAddress *to, *cc, *bcc;
    GList *To = NULL, *Cc = NULL, *Bcc = NULL;
    gboolean want_plain, is_html;
    CamelDataWrapper *contents;
    const MailConfig *config;
    const gchar *subject;
    GtkWidget *new;
    char *text, *final_text;
    guint len, i;
    
    g_return_val_if_fail (gtk_main_level () > 0, NULL);
    
    new = gtk_type_new (e_msg_composer_get_type ());
    e_msg_composer_construct (E_MSG_COMPOSER (new));
    
    subject = camel_mime_message_get_subject (msg);
    
    to = camel_mime_message_get_recipients (msg, CAMEL_RECIPIENT_TYPE_TO);
    cc = camel_mime_message_get_recipients (msg, CAMEL_RECIPIENT_TYPE_CC);
    bcc = camel_mime_message_get_recipients (msg, CAMEL_RECIPIENT_TYPE_BCC);
    
    len = CAMEL_ADDRESS (to)->addresses->len;
    for (i = 0; i < len; i++) {
        const char *addr;
        
        if (camel_internet_address_get (to, i, NULL, &addr))
            To = g_list_append (To, g_strdup (addr));
    }
    
    len = CAMEL_ADDRESS (cc)->addresses->len;
    for (i = 0; i < len; i++) {
        const char *addr;
        
        if (camel_internet_address_get (cc, i, NULL, &addr))
            Cc = g_list_append (Cc, g_strdup (addr));
    }
    
    len = CAMEL_ADDRESS (bcc)->addresses->len;
    for (i = 0; i < len; i++) {
        const char *addr;
        
        if (camel_internet_address_get (bcc, i, NULL, &addr))
            Bcc = g_list_append (Bcc, g_strdup (addr));
    }
    
    e_msg_composer_set_headers (E_MSG_COMPOSER (new), To, Cc, Bcc, subject);
    
    free_recipients (To);
    free_recipients (Cc);
    free_recipients (Bcc);
    
    config = mail_config_fetch ();
    want_plain = !config->send_html;

    contents = camel_medium_get_content_object (CAMEL_MEDIUM (msg));
    text = mail_get_message_body (contents, want_plain, &is_html);
    if (is_html)
        final_text = g_strdup (text);
    else
        final_text = e_text_to_html (text, E_TEXT_TO_HTML_CONVERT_NL |
                         E_TEXT_TO_HTML_CONVERT_SPACES);
    g_free (text);
    
    e_msg_composer_set_body_text (E_MSG_COMPOSER (new), final_text);
    
    /*set_editor_text (BONOBO_WIDGET (E_MSG_COMPOSER (new)->editor), 
      NULL, "FIXME: like, uh... put the message here and stuff\n");*/
    
    return new;
}

static GList *
add_recipients (GList *list, const char *recips, gboolean decode)
{
    int len;
    char *addr;

    while (*recips) {
        len = strcspn (recips, ",");
        if (len) {
            addr = g_strndup (recips, len);
            if (decode)
                camel_url_decode (addr);
            list = g_list_append (list, addr);
        }
        recips += len;
        if (*recips == ',')
            recips++;
    }

    return list;
}

static void
free_recipients (GList *list)
{
    GList *l;

    for (l = list; l; l = l->next)
        g_free (l->data);
    g_list_free (list);
}

/**
 * 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.
 **/
GtkWidget *
e_msg_composer_new_from_url (const char *url)
{
    EMsgComposer *composer;
    EMsgComposerHdrs *hdrs;
    GList *to = NULL, *cc = NULL, *bcc = NULL;
    char *subject = NULL, *body = NULL;
    const char *p, *header;
    int len, clen;
    char *content;

    g_return_val_if_fail (strncasecmp (url, "mailto:", 7) == 0, NULL);

    /* Parse recipients (everything after ':' until '?' or eos. */
    p = url + 7;
    len = strcspn (p, "?,");
    if (len) {
        content = g_strndup (p, len);
        to = add_recipients (to, content, TRUE);
        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))
                subject = g_strdup (content);
            else if (!strncasecmp (header, "body", len))
                body = g_strdup (content);

            g_free (content);
            p += clen;
            if (*p == '&') {
                p++;
                if (!strcmp (p, "amp;"))
                    p += 4;
            }
        }
    }
        
    composer = E_MSG_COMPOSER (e_msg_composer_new ());
    hdrs = E_MSG_COMPOSER_HDRS (composer->hdrs);
    e_msg_composer_hdrs_set_to (hdrs, to);
    free_recipients (to);
    e_msg_composer_hdrs_set_cc (hdrs, cc);
    free_recipients (cc);
    e_msg_composer_hdrs_set_bcc (hdrs, bcc);
    free_recipients (bcc);
    if (subject) {
        e_msg_composer_hdrs_set_subject (hdrs, subject);
        g_free (subject);
    }

    if (body) {
        char *htmlbody = e_text_to_html (body, E_TEXT_TO_HTML_PRE);
        set_editor_text (BONOBO_WIDGET (composer->editor), 
                 NULL, htmlbody);
        g_free (htmlbody);
    }

    return GTK_WIDGET (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 (composer != NULL);
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    show_attachments (composer, show);
}

/**
 * e_msg_composer_set_headers:
 * @composer: a composer object
 * @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 GList *to,
                const GList *cc, const GList *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_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 (BONOBO_WIDGET (composer->editor), 
             composer->sig_file, text);
}


/**
 * 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_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)
{
    g_return_val_if_fail (composer != NULL, NULL);
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    return build_message (composer);
}



/**
 * e_msg_composer_set_sig:
 * @composer: A message composer widget
 * @path: Signature file
 * 
 * Set a signature
 **/
void
e_msg_composer_set_sig_file (EMsgComposer *composer, const char *sig_file)
{
    g_return_if_fail (composer != NULL);
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    composer->sig_file = g_strdup (sig_file);
}

/**
 * e_msg_composer_get_sig_file:
 * @composer: A message composer widget
 * 
 * Get the signature file
 * 
 * Return value: The signature file.
 **/
char *
e_msg_composer_get_sig_file (EMsgComposer *composer)
{
    g_return_val_if_fail (composer != NULL, NULL);
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    return composer->sig_file;
}


/**
 * 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)
{
    g_return_if_fail (composer != NULL);
    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;
    bonobo_ui_handler_menu_set_toggle_state (composer->uih, "/Format/HTML", send_html);
}

/**
 * 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 (composer != NULL, FALSE);
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);

    return composer->send_html;
}