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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Authors: Jeffrey Stedfast <fejj@ximian.com>
 *
 *  Copyright 2002-2003 Ximian, Inc. (www.ximian.com)
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

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

#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>

#include "e-util/e-signature.h"
#include "e-util/e-signature-list.h"
#include "e-util/gconf-bridge.h"

#include "em-composer-prefs.h"
#include "composer/e-msg-composer.h"

#include <bonobo/bonobo-generic-factory.h>

#include <libedataserver/e-iconv.h>
#include <misc/e-gui-utils.h>

#include <glib/gstdio.h>
#include <gdk/gdkkeysyms.h>

#include <gtkhtml/gtkhtml.h>
#include <editor/gtkhtml-spell-language.h>

#include "misc/e-charset-picker.h"
#include "e-util/e-error.h"
#include "e-util/e-util-private.h"

#include "mail-config.h"
#include "mail-signature-editor.h"
#include "em-config.h"

static gpointer parent_class;

static void
composer_prefs_dispose (GObject *object)
{
    EMComposerPrefs *prefs = (EMComposerPrefs *) object;
    ESignatureList *signature_list;

    signature_list = mail_config_get_signatures ();

    if (prefs->sig_added_id != 0) {
        g_signal_handler_disconnect (
            signature_list, prefs->sig_added_id);
        prefs->sig_added_id = 0;
    }

    if (prefs->sig_removed_id != 0) {
        g_signal_handler_disconnect (
            signature_list, prefs->sig_removed_id);
        prefs->sig_removed_id = 0;
    }

    if (prefs->sig_changed_id != 0) {
        g_signal_handler_disconnect (
            signature_list, prefs->sig_changed_id);
        prefs->sig_changed_id = 0;
    }

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
composer_prefs_finalize (GObject *object)
{
    EMComposerPrefs *prefs = (EMComposerPrefs *) object;

    g_object_unref (prefs->gui);

    g_hash_table_destroy (prefs->sig_hash);

    /* Chain up to parent's finalize() method. */
        G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
composer_prefs_class_init (EMComposerPrefsClass *class)
{
    GObjectClass *object_class;

    parent_class = g_type_class_peek_parent (class);

    object_class = G_OBJECT_CLASS (class);
    object_class->dispose = composer_prefs_dispose;
    object_class->finalize = composer_prefs_finalize;
}

static void
composer_prefs_init (EMComposerPrefs *prefs)
{
    prefs->sig_hash = g_hash_table_new_full (
        g_direct_hash, g_direct_equal,
        (GDestroyNotify) NULL,
        (GDestroyNotify) gtk_tree_row_reference_free);
}

GType
em_composer_prefs_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EMComposerPrefsClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) composer_prefs_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EMComposerPrefs),
            0,     /* n_allocs */
            (GInstanceInitFunc) composer_prefs_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            GTK_TYPE_VBOX, "EMComposerPrefs", &type_info, 0);
    }

    return type;
}

static void
sig_load_preview (EMComposerPrefs *prefs,
                  ESignature *signature)
{
    GtkHTML *html;
    gchar *str;

    html = prefs->sig_preview;

    if (signature == NULL) {
        gtk_html_load_from_string (html, " ", 1);
        return;
    }

    if (signature->script)
        str = mail_config_signature_run_script (signature->filename);
    else
        str = e_msg_composer_get_sig_file_content (
            signature->filename, signature->html);
    if (!str)
        str = g_strdup ("");

    if (signature->html) {
        gtk_html_load_from_string (html, str, strlen (str));
    } else {
        GtkHTMLStream *stream;
        int len;

        len = strlen (str);
        stream = gtk_html_begin_content (html, "text/html; charset=utf-8");
        gtk_html_write (html, stream, "<PRE>", 5);
        if (len)
            gtk_html_write (html, stream, str, len);
        gtk_html_write (html, stream, "</PRE>", 6);
        gtk_html_end (html, stream, GTK_HTML_STREAM_OK);
    }

    g_free (str);
}

static void
signature_added (ESignatureList *signature_list,
                 ESignature *signature,
                 EMComposerPrefs *prefs)
{
    GtkTreeRowReference *row;
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;

    /* autogen signature is special */
    if (signature->autogen)
        return;

    model = gtk_tree_view_get_model (prefs->sig_list);
    gtk_list_store_append (GTK_LIST_STORE (model), &iter);
    gtk_list_store_set (
        GTK_LIST_STORE (model), &iter,
        0, signature->name, 1, signature, -1);

    path = gtk_tree_model_get_path (model, &iter);
    row = gtk_tree_row_reference_new (model, path);
    gtk_tree_path_free (path);

    g_hash_table_insert (prefs->sig_hash, signature, row);
}

static void
signature_removed (ESignatureList *signature_list,
                   ESignature *signature,
                   EMComposerPrefs *prefs)
{
    GtkTreeRowReference *row;
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;

    if (!(row = g_hash_table_lookup (prefs->sig_hash, signature)))
        return;

    model = gtk_tree_view_get_model (prefs->sig_list);
    path = gtk_tree_row_reference_get_path (row);
    g_hash_table_remove (prefs->sig_hash, signature);

    if (!gtk_tree_model_get_iter (model, &iter, path)) {
        gtk_tree_path_free (path);
        return;
    }

    gtk_list_store_remove ((GtkListStore *) model, &iter);
}

static void
signature_changed (ESignatureList *signature_list,
                   ESignature *signature,
                   EMComposerPrefs *prefs)
{
    GtkTreeSelection *selection;
    GtkTreeRowReference *row;
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;
    ESignature *cur;

    if (!(row = g_hash_table_lookup (prefs->sig_hash, signature)))
        return;

    model = gtk_tree_view_get_model (prefs->sig_list);
    path = gtk_tree_row_reference_get_path (row);

    if (!gtk_tree_model_get_iter (model, &iter, path)) {
        gtk_tree_path_free (path);
        return;
    }

    gtk_tree_path_free (path);

    gtk_list_store_set ((GtkListStore *) model, &iter, 0, signature->name, -1);

    selection = gtk_tree_view_get_selection (prefs->sig_list);
    if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
        gtk_tree_model_get (model, &iter, 1, &cur, -1);
        if (cur == signature)
            sig_load_preview (prefs, signature);
    }
}

static void
sig_edit_cb (GtkWidget *widget, EMComposerPrefs *prefs)
{
    GtkTreeSelection *selection;
    GtkTreeModel *model;
    GtkWidget *parent;
    GtkTreeIter iter;
    ESignature *signature;

    selection = gtk_tree_view_get_selection (prefs->sig_list);
    if (!gtk_tree_selection_get_selected (selection, &model, &iter))
        return;

    gtk_tree_model_get (model, &iter, 1, &signature, -1);

    if (!signature->script) {
        GtkWidget *editor;

        /* normal signature */
        if (!signature->filename || *signature->filename == '\0') {
            g_free (signature->filename);
            signature->filename = g_strdup (_("Unnamed"));
        }

        editor = e_signature_editor_new ();
        e_signature_editor_set_signature (
            E_SIGNATURE_EDITOR (editor), signature);

        parent = gtk_widget_get_toplevel ((GtkWidget *) prefs);
        if (GTK_WIDGET_TOPLEVEL (parent))
            gtk_window_set_transient_for (
                GTK_WINDOW (editor), GTK_WINDOW (parent));

        gtk_widget_show (editor);
    } else {
        /* signature script */
        GtkWidget *entry;

        entry = glade_xml_get_widget (prefs->sig_script_gui, "filechooserbutton_add_script");
        gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (entry), signature->filename);

        entry = glade_xml_get_widget (prefs->sig_script_gui, "entry_add_script_name");
        gtk_entry_set_text (GTK_ENTRY (entry), signature->name);

        g_object_set_data ((GObject *) entry, "sig", signature);

        gtk_window_present ((GtkWindow *) prefs->sig_script_dialog);
    }
}

void
em_composer_prefs_new_signature (GtkWindow *parent,
                                 gboolean html_mode)
{
    GtkWidget *editor;

    editor = e_signature_editor_new ();
    gtkhtml_editor_set_html_mode (GTKHTML_EDITOR (editor), html_mode);
    gtk_window_set_transient_for (GTK_WINDOW (editor), parent);
    gtk_widget_show (editor);
}

static void
sig_delete_cb (GtkWidget *widget, EMComposerPrefs *prefs)
{
    GtkTreeSelection *selection;
    GtkTreeModel *model;
    GtkTreeIter iter;
    ESignature *signature;

    selection = gtk_tree_view_get_selection (prefs->sig_list);

    if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
        gtk_tree_model_get (model, &iter, 1, &signature, -1);
        mail_config_remove_signature (signature);
    }
    gtk_widget_grab_focus ((GtkWidget *)prefs->sig_list);
}

static void
sig_add_cb (GtkWidget *widget, EMComposerPrefs *prefs)
{
    gboolean send_html;
    GtkWidget *parent;

    send_html = gconf_client_get_bool (
        mail_config_get_gconf_client (),
        "/apps/evolution/mail/composer/send_html", NULL);

    parent = gtk_widget_get_toplevel (GTK_WIDGET (prefs));
    parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL;

    em_composer_prefs_new_signature (GTK_WINDOW (parent), send_html);
    gtk_widget_grab_focus (GTK_WIDGET (prefs->sig_list));
}

static void
sig_add_script_response (GtkWidget *widget, int button, EMComposerPrefs *prefs)
{
    gchar *script, **argv = NULL;
    GtkWidget *entry;
    const gchar *name;
    int argc;

    if (button == GTK_RESPONSE_ACCEPT) {
        entry = glade_xml_get_widget (prefs->sig_script_gui, "filechooserbutton_add_script");
        script = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (entry));

        entry = glade_xml_get_widget (prefs->sig_script_gui, "entry_add_script_name");
        name = gtk_entry_get_text (GTK_ENTRY (entry));
        if (script && *script && g_shell_parse_argv (script, &argc, &argv, NULL)) {
            struct stat st;

            if (g_stat (argv[0], &st) == 0 && S_ISREG (st.st_mode) && g_access (argv[0], X_OK) == 0) {
                ESignature *signature;

                if ((signature = g_object_get_data ((GObject *) entry, "sig"))) {
                    /* we're just editing an existing signature script */
                    g_free (signature->name);
                    signature->name = g_strdup (name);
                    g_free(signature->filename);
                    signature->filename = g_strdup(script);
                    e_signature_list_change (mail_config_get_signatures (), signature);
                } else {
                    signature = mail_config_signature_new (script, TRUE, TRUE);
                    signature->name = g_strdup (name);

                    e_signature_list_add (mail_config_get_signatures (), signature);
                    g_object_unref (signature);
                }

                mail_config_save_signatures();

                gtk_widget_hide (prefs->sig_script_dialog);
                g_strfreev (argv);
                g_free (script);

                return;
            }
        }

        e_error_run((GtkWindow *)prefs->sig_script_dialog, "mail:signature-notscript", argv ? argv[0] : script, NULL);
        g_strfreev (argv);
        g_free (script);
        return;
    }

    gtk_widget_hide (widget);
}

static void
sig_add_script_cb (GtkWidget *widget, EMComposerPrefs *prefs)
{
    GtkWidget *entry;

    entry = glade_xml_get_widget (prefs->sig_script_gui, "entry_add_script_name");
    gtk_entry_set_text (GTK_ENTRY (entry), _("Unnamed"));

    g_object_set_data ((GObject *) entry, "sig", NULL);

    gtk_window_present ((GtkWindow *) prefs->sig_script_dialog);
}

static void
sig_selection_changed (GtkTreeSelection *selection,
                       EMComposerPrefs *prefs)
{
    ESignature *signature;
    GtkTreeModel *model;
    GtkTreeIter iter;
    gboolean valid;

    valid = gtk_tree_selection_get_selected (selection, &model, &iter);

    if (valid) {
        gtk_tree_model_get (model, &iter, 1, &signature, -1);
        sig_load_preview (prefs, signature);
    } else
        sig_load_preview (prefs, NULL);

    gtk_widget_set_sensitive (GTK_WIDGET (prefs->sig_delete), valid);
    gtk_widget_set_sensitive (GTK_WIDGET (prefs->sig_edit), valid);
}

static void
sig_fill_list (EMComposerPrefs *prefs)
{
    ESignatureList *signature_list;
    GtkTreeModel *model;
    EIterator *iterator;

    model = gtk_tree_view_get_model (prefs->sig_list);
    gtk_list_store_clear (GTK_LIST_STORE (model));

    signature_list = mail_config_get_signatures ();
    iterator = e_list_get_iterator ((EList *) signature_list);

    while (e_iterator_is_valid (iterator)) {
        ESignature *signature;

        signature = (ESignature *) e_iterator_get (iterator);
        signature_added (signature_list, signature, prefs);

        e_iterator_next (iterator);
    }

    g_object_unref (iterator);

    gtk_widget_set_sensitive (GTK_WIDGET (prefs->sig_edit), FALSE);
    gtk_widget_set_sensitive (GTK_WIDGET (prefs->sig_delete), FALSE);

    prefs->sig_added_id = g_signal_connect (
        signature_list, "signature-added",
        G_CALLBACK (signature_added), prefs);

    prefs->sig_removed_id = g_signal_connect (
        signature_list, "signature-removed",
        G_CALLBACK (signature_removed), prefs);

    prefs->sig_changed_id = g_signal_connect (
        signature_list, "signature-changed",
        G_CALLBACK (signature_changed), prefs);
}

static void
url_requested (GtkHTML *html,
               const gchar *url,
               GtkHTMLStream *handle)
{
    GtkHTMLStreamStatus status;
    gchar buf[128];
    gssize size;
    gint fd;
    gchar *filename;

    if (strncmp (url, "file:", 5) == 0)
        filename = g_filename_from_uri (url, NULL, NULL);
    else
        filename = g_strdup (url);
    fd = g_open (filename, O_RDONLY | O_BINARY, 0);
    g_free (filename);

    status = GTK_HTML_STREAM_OK;
    if (fd != -1) {
        while ((size = read (fd, buf, sizeof (buf)))) {
            if (size == -1) {
                status = GTK_HTML_STREAM_ERROR;
                break;
            } else
                gtk_html_write (html, handle, buf, size);
        }
    } else
        status = GTK_HTML_STREAM_ERROR;

    gtk_html_end (html, handle, status);
    if (fd > 0)
        close (fd);
}

static void
spell_color_set (GtkColorButton *color_button,
                 EMComposerPrefs *prefs)
{
    GConfClient *client;
    const gchar *key;
    GdkColor color;
    gchar *string;

    gtk_color_button_get_color (color_button, &color);
    string = gdk_color_to_string (&color);

    client = mail_config_get_gconf_client ();
    key = "/apps/evolution/mail/composer/spell_color";
    gconf_client_set_string (client, key, string, NULL);

    g_free (string);
}

static void
spell_language_toggled_cb (GtkCellRendererToggle *renderer,
                           const gchar *path_string,
                           EMComposerPrefs *prefs)
{
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;
    gboolean active;
    gboolean valid;

    model = prefs->language_model;

    /* Convert the path string to a tree iterator. */
    path = gtk_tree_path_new_from_string (path_string);
    valid = gtk_tree_model_get_iter (model, &iter, path);
    gtk_tree_path_free (path);
    g_return_if_fail (valid);

    /* Toggle the active state. */
    gtk_tree_model_get (model, &iter, 0, &active, -1);
    gtk_list_store_set (GTK_LIST_STORE (model), &iter, 0, !active, -1);
}

static void
spell_language_save (EMComposerPrefs *prefs)
{
    GSList *list = NULL;
    GConfClient *client;
    GtkTreeModel *model;
    GtkTreeIter iter;
    const gchar *key;
    gboolean valid;

    model = prefs->language_model;

    /* Build a list of active languages. */
    valid = gtk_tree_model_get_iter_first (model, &iter);
    while (valid) {
        const GtkhtmlSpellLanguage *language;
        const gchar *code;
        gboolean active;

        gtk_tree_model_get (
            model, &iter, 0, &active, 2, &language, -1);
        code = gtkhtml_spell_language_get_code (language);

        if (active)
            list = g_slist_prepend (list, (gpointer) code);

        valid = gtk_tree_model_iter_next (model, &iter);
    }
    list = g_slist_reverse (list);

    /* Update the GConf value. */
    client = mail_config_get_gconf_client ();
    key = "/apps/evolution/mail/composer/spell_languages";
    gconf_client_set_list (client, key, GCONF_VALUE_STRING, list, NULL);

    g_slist_free (list);
}

static void
spell_setup (EMComposerPrefs *prefs)
{
    const GList *available_languages;
    GSList *active_languages, *iter;
    GConfClient *client;
    GtkListStore *store;
    GdkColor color;
    const gchar *key;
    gchar *string;

    client = mail_config_get_gconf_client ();
    store = GTK_LIST_STORE (prefs->language_model);
    available_languages = gtkhtml_spell_language_get_available ();

    /* Retrieve a list of language codes from GConf. */
    key = "/apps/evolution/mail/composer/spell_languages";
    active_languages = gconf_client_get_list (
        client, key, GCONF_VALUE_STRING, NULL);

    /* Convert the list to GtkhtmlSpellLanguages. */
    for (iter = active_languages; iter != NULL; iter = iter->next) {
        gchar *code = iter->data;

        iter->data = (gpointer) gtkhtml_spell_language_lookup (code);
        g_free (code);
    }

    /* Make sure we have _something_ active. */
    if (active_languages == NULL) {
        const GtkhtmlSpellLanguage *default_language;

        default_language = gtkhtml_spell_language_lookup (NULL);
        active_languages = g_slist_prepend (
            active_languages, (gpointer) default_language);
    }

    /* Populate the GtkListStore. */
    while (available_languages != NULL) {
        const GtkhtmlSpellLanguage *language;
        GtkTreeIter tree_iter;
        const gchar *name;
        gboolean active;

        language = available_languages->data;
        name = gtkhtml_spell_language_get_name (language);
        active = (g_slist_find (active_languages, language) != NULL);

        gtk_list_store_append (store, &tree_iter);

        gtk_list_store_set (
            store, &tree_iter,
            0, active, 1, name, 2, language, -1);

        available_languages = available_languages->next;
    }

    /* Update the GConf list in case we used a default language. */
    spell_language_save (prefs);

    g_slist_free (active_languages);

    key = "/apps/evolution/mail/composer/spell_color";
    string = gconf_client_get_string (client, key, NULL);
    if (string == NULL || !gdk_color_parse (string, &color))
        gdk_color_parse ("Red", &color);
    gtk_color_button_set_color (GTK_COLOR_BUTTON (prefs->color), &color);

    g_signal_connect (
        prefs->color, "color_set",
        G_CALLBACK (spell_color_set), prefs);
}

static gint
attach_style_reply_new_order (gint style_id,
                              gboolean from_enum_to_option_id)
{
    gint values[] = {
        MAIL_CONFIG_REPLY_ATTACH, 0,
        MAIL_CONFIG_REPLY_OUTLOOK, 1,
        MAIL_CONFIG_REPLY_QUOTED, 2,
        MAIL_CONFIG_REPLY_DO_NOT_QUOTE, 3,
        -1, -1};
    gint ii;

    for (ii = from_enum_to_option_id ? 0 : 1; values[ii] != -1; ii += 2) {
        if (values[ii] == style_id)
            return values [from_enum_to_option_id ? ii + 1 : ii - 1];
    }

    return style_id;
}

static void
attach_style_info (GtkWidget *item,
                   gpointer user_data)
{
    gint *style = user_data;

    g_object_set_data (
        G_OBJECT (item), "style", GINT_TO_POINTER (*style));

    (*style)++;
}

static void
attach_style_info_reply (GtkWidget *item,
                         gpointer user_data)
{
    gint *style = user_data;

    g_object_set_data (
        G_OBJECT (item), "style", GINT_TO_POINTER (
        attach_style_reply_new_order (*style, FALSE)));

    (*style)++;
}

static void
style_activate (GtkWidget *item,
                EMComposerPrefs *prefs)
{
    GConfClient *client;
    const gchar *key;
    gint style;

    client = mail_config_get_gconf_client ();
    key = g_object_get_data (G_OBJECT (item), "key");
    style = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (item), "style"));
    gconf_client_set_int (client, key, style, NULL);
}

static void
charset_activate (GtkWidget *item,
                  EMComposerPrefs *prefs)
{
    GConfClient *client;
    GtkWidget *menu;
    gchar *string;

    client = mail_config_get_gconf_client ();
    menu = gtk_option_menu_get_menu (prefs->charset);
    string = e_charset_picker_get_charset (menu);

    if (string == NULL)
        string = g_strdup (e_iconv_locale_charset ());

    gconf_client_set_string (
        client, "/apps/evolution/mail/composer/charset",
        string, NULL);

    g_free (string);
}

static void
option_menu_connect (EMComposerPrefs *prefs,
                     GtkOptionMenu *omenu,
                     GCallback callback,
                     const gchar *key)
{
    GConfClient *client;
    GtkWidget *menu;
    GList *list;

    client = mail_config_get_gconf_client ();
    menu = gtk_option_menu_get_menu (omenu);
    list = GTK_MENU_SHELL (menu)->children;

    while (list != NULL) {
        GtkWidget *widget = list->data;

        g_object_set_data (G_OBJECT (widget), "key", (gpointer) key);
        g_signal_connect (widget, "activate", callback, prefs);
        list = list->next;
    }

    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (GTK_WIDGET (omenu), FALSE);
}

static GtkWidget *
emcp_widget_glade (EConfig *ec,
                   EConfigItem *item,
                   GtkWidget *parent,
                   GtkWidget *old,
                   gpointer data)
{
    EMComposerPrefs *prefs = data;

    return glade_xml_get_widget (prefs->gui, item->label);
}

/* plugin meta-data */
static EMConfigItem emcp_items[] = {
    { E_CONFIG_BOOK, "", "composer_toplevel", emcp_widget_glade },
    { E_CONFIG_PAGE, "00.general", "vboxGeneral", emcp_widget_glade },
    { E_CONFIG_SECTION, "00.general/00.behavior", "vboxBehavior", emcp_widget_glade },
    { E_CONFIG_SECTION, "00.general/10.alerts", "vboxAlerts", emcp_widget_glade },
    { E_CONFIG_PAGE, "10.signatures", "vboxSignatures", emcp_widget_glade },
    /* signature/signatures and signature/preview parts not usable */

    { E_CONFIG_PAGE, "20.spellcheck", "vboxSpellChecking", emcp_widget_glade },
    { E_CONFIG_SECTION, "20.spellcheck/00.languages", "vbox178", emcp_widget_glade },
    { E_CONFIG_SECTION, "20.spellcheck/00.options", "vboxOptions", emcp_widget_glade },
};

static void
emcp_free (EConfig *ec, GSList *items, gpointer data)
{
    /* the prefs data is freed automagically */
    g_slist_free (items);
}

static gboolean
signature_key_press_cb (GtkTreeView *tree_view,
                        GdkEventKey *event,
                        EMComposerPrefs *prefs)
{
    /* No need to care about anything other than DEL key */
    if (event->keyval == GDK_Delete) {
        sig_delete_cb (GTK_WIDGET (tree_view), prefs);
        return TRUE;
    }

    return FALSE;
}

static gboolean
sig_tree_event_cb (GtkTreeView *tree_view,
                   GdkEvent *event,
                   EMComposerPrefs *prefs)
{
    if (event->type == GDK_2BUTTON_PRESS) {
        sig_edit_cb (GTK_WIDGET (tree_view), prefs);
        return TRUE;
    }

    return FALSE;
}

static void
em_composer_prefs_construct (EMComposerPrefs *prefs)
{
    GtkWidget *toplevel, *widget, *menu, *info_pixmap;
    GtkDialog *dialog;
    GladeXML *gui;
    GtkTreeView *view;
    GtkListStore *store;
    GtkTreeSelection *selection;
    GtkCellRenderer *renderer;
    GConfBridge *bridge;
    GConfClient *client;
    const gchar *key;
    int style;
    gchar *buf;
    EMConfig *ec;
    EMConfigTargetPrefs *target;
    GSList *l;
    int i;
    gchar *gladefile;
    gboolean sensitive;

    bridge = gconf_bridge_get ();
    client = mail_config_get_gconf_client ();

    gladefile = g_build_filename (EVOLUTION_GLADEDIR,
                      "mail-config.glade",
                      NULL);
    gui = glade_xml_new (gladefile, "composer_toplevel", NULL);
    prefs->gui = gui;
    prefs->sig_script_gui = glade_xml_new (gladefile, "vbox_add_script_signature", NULL);
    g_free (gladefile);

    /** @HookPoint-EMConfig: Mail Composer Preferences
     * @Id: org.gnome.evolution.mail.composerPrefs
     * @Type: E_CONFIG_BOOK
     * @Class: org.gnome.evolution.mail.config:1.0
     * @Target: EMConfigTargetPrefs
     *
     * The mail composer preferences settings page.
     */
    ec = em_config_new(E_CONFIG_BOOK, "org.gnome.evolution.mail.composerPrefs");
    l = NULL;
    for (i = 0; i < G_N_ELEMENTS (emcp_items); i++)
        l = g_slist_prepend(l, &emcp_items[i]);
    e_config_add_items((EConfig *)ec, l, NULL, NULL, emcp_free, prefs);

    /* General tab */

    /* Default Behavior */
    key = "/apps/evolution/mail/composer/send_html";
    widget = glade_xml_get_widget (gui, "chkSendHTML");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/prompts/empty_subject";
    widget = glade_xml_get_widget (gui, "chkPromptEmptySubject");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/prompts/only_bcc";
    widget = glade_xml_get_widget (gui, "chkPromptBccOnly");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/composer/magic_smileys";
    widget = glade_xml_get_widget (gui, "chkAutoSmileys");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/composer/request_receipt";
    widget = glade_xml_get_widget (gui, "chkRequestReceipt");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/composer/top_signature";
    widget = glade_xml_get_widget (gui, "chkTopSignature");
    if (!gconf_client_key_is_writable (client, key, NULL))
        gtk_widget_set_sensitive (widget, FALSE);
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    key = "/apps/evolution/mail/composer/inline_spelling";
    widget = glade_xml_get_widget (gui, "chkEnableSpellChecking");
    gconf_bridge_bind_property (bridge, key, G_OBJECT (widget), "active");

    prefs->charset = GTK_OPTION_MENU (
        glade_xml_get_widget (gui, "omenuCharset1"));
    buf = gconf_client_get_string (
        client, "/apps/evolution/mail/composer/charset", NULL);
    menu = e_charset_picker_new (
        buf && *buf ? buf : e_iconv_locale_charset ());
    gtk_option_menu_set_menu (prefs->charset, GTK_WIDGET (menu));
    option_menu_connect (
        prefs, prefs->charset,
        G_CALLBACK (charset_activate),
        "/apps/evolution/mail/composer/charset");
    g_free (buf);

    /* Spell Checking */
    widget = glade_xml_get_widget (gui, "colorButtonSpellCheckColor");
    prefs->color = GTK_COLOR_BUTTON (widget);
    widget = glade_xml_get_widget (gui, "listSpellCheckLanguage");
    view = GTK_TREE_VIEW (widget);
    store = gtk_list_store_new (
        3, G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_POINTER);
    g_signal_connect_swapped (
        store, "row-changed",
        G_CALLBACK (spell_language_save), prefs);
    prefs->language_model = GTK_TREE_MODEL (store);
    gtk_tree_view_set_model (view, prefs->language_model);
    renderer = gtk_cell_renderer_toggle_new ();
    g_signal_connect (
        renderer, "toggled",
        G_CALLBACK (spell_language_toggled_cb), prefs);
    gtk_tree_view_insert_column_with_attributes (
        view, -1, _("Enabled"),
        renderer, "active", 0, NULL);

    gtk_tree_view_insert_column_with_attributes (
        view, -1, _("Language(s)"),
            gtk_cell_renderer_text_new (),
        "text", 1, NULL);
    selection = gtk_tree_view_get_selection (view);
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
    info_pixmap = glade_xml_get_widget (gui, "pixmapSpellInfo");
    gtk_image_set_from_stock (
        GTK_IMAGE (info_pixmap),
        GTK_STOCK_DIALOG_INFO, GTK_ICON_SIZE_BUTTON);
    spell_setup (prefs);

    /* Forwards and Replies */
    prefs->forward_style = GTK_OPTION_MENU (glade_xml_get_widget (gui, "omenuForwardStyle")); 
    style = gconf_client_get_int (client, "/apps/evolution/mail/format/forward_style", NULL);
    gtk_option_menu_set_history (prefs->forward_style, style);
    style = 0;

    gtk_container_foreach (GTK_CONTAINER (gtk_option_menu_get_menu (prefs->forward_style)),
                attach_style_info, &style);

    if (gtk_option_menu_get_menu (prefs->forward_style)) {
        option_menu_connect (prefs, prefs->forward_style, G_CALLBACK (style_activate),
                "/apps/evolution/mail/format/forward_style");
    }

    prefs->reply_style = GTK_OPTION_MENU (glade_xml_get_widget (gui, "omenuReplyStyle"));
    style = gconf_client_get_int (client, "/apps/evolution/mail/format/reply_style", NULL);
    gtk_option_menu_set_history (prefs->reply_style, attach_style_reply_new_order (style, TRUE));
    style = 0;
    gtk_container_foreach (GTK_CONTAINER (gtk_option_menu_get_menu (prefs->reply_style)),
                   attach_style_info_reply, &style);
    
    
    if (gtk_option_menu_get_menu (prefs->reply_style)) {
        option_menu_connect (prefs, prefs->reply_style, G_CALLBACK (style_activate),
                "/apps/evolution/mail/format/reply_style");
    }

    /* Signatures */
    dialog = (GtkDialog *) gtk_dialog_new ();

    gtk_widget_realize ((GtkWidget *) dialog);
    gtk_container_set_border_width ((GtkContainer *)dialog->action_area, 12);
    gtk_container_set_border_width ((GtkContainer *)dialog->vbox, 0);

    prefs->sig_script_dialog = (GtkWidget *) dialog;
    gtk_dialog_add_buttons (dialog, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
                GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, NULL);
    gtk_dialog_set_has_separator (dialog, FALSE);
    gtk_window_set_title ((GtkWindow *) dialog, _("Add signature script"));
    g_signal_connect (dialog, "response", G_CALLBACK (sig_add_script_response), prefs);
    widget = glade_xml_get_widget (prefs->sig_script_gui, "vbox_add_script_signature");
    gtk_box_pack_start ((GtkBox *) dialog->vbox, widget, TRUE, TRUE, 0);

    key = "/apps/evolution/mail/signatures";
    sensitive = gconf_client_key_is_writable (client, key, NULL);

    widget = glade_xml_get_widget (gui, "cmdSignatureAdd");
    gtk_widget_set_sensitive (widget, sensitive);
    g_signal_connect (
        widget, "clicked",
        G_CALLBACK (sig_add_cb), prefs);
    prefs->sig_add = GTK_BUTTON (widget);

    widget = glade_xml_get_widget (gui, "cmdSignatureAddScript");
    gtk_widget_set_sensitive (widget, sensitive);
    g_signal_connect (
        widget, "clicked",
        G_CALLBACK (sig_add_script_cb), prefs);
    prefs->sig_add_script = GTK_BUTTON (widget);

    widget = glade_xml_get_widget (gui, "cmdSignatureEdit");
    gtk_widget_set_sensitive (widget, sensitive);
    g_signal_connect (
        widget, "clicked",
        G_CALLBACK (sig_edit_cb), prefs);
    prefs->sig_edit = GTK_BUTTON (widget);

    widget = glade_xml_get_widget (gui, "cmdSignatureDelete");
    gtk_widget_set_sensitive (widget, sensitive);
    g_signal_connect (
        widget, "clicked",
        G_CALLBACK (sig_delete_cb), prefs);
    prefs->sig_delete = GTK_BUTTON (widget);

    widget = glade_xml_get_widget (gui, "listSignatures");
    gtk_widget_set_sensitive (widget, sensitive);
    prefs->sig_list = GTK_TREE_VIEW (widget);
    store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_POINTER);
    gtk_tree_view_set_model (prefs->sig_list, GTK_TREE_MODEL (store));
    gtk_tree_view_insert_column_with_attributes (
        prefs->sig_list, -1, _("Signature(s)"),
        gtk_cell_renderer_text_new (), "text", 0, NULL);
    selection = gtk_tree_view_get_selection (prefs->sig_list);
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
    g_signal_connect (
        selection, "changed",
        G_CALLBACK (sig_selection_changed), prefs);
    g_signal_connect (
        prefs->sig_list, "event",
        G_CALLBACK (sig_tree_event_cb), prefs);

    sig_fill_list (prefs);

    /* preview GtkHTML widget */
    widget = glade_xml_get_widget (gui, "scrolled-sig");
    prefs->sig_preview = (GtkHTML *) gtk_html_new ();
    g_signal_connect (
        prefs->sig_preview, "url_requested",
        G_CALLBACK (url_requested), NULL);
    gtk_widget_show (GTK_WIDGET (prefs->sig_preview));
    gtk_container_add (
        GTK_CONTAINER (widget),
        GTK_WIDGET (prefs->sig_preview));

    /* get our toplevel widget */
    target = em_config_target_new_prefs (ec, client);
    e_config_set_target ((EConfig *)ec, (EConfigTarget *)target);
    toplevel = e_config_create_widget ((EConfig *)ec);
    gtk_container_add (GTK_CONTAINER (prefs), toplevel);

    g_signal_connect (
        prefs->sig_list, "key-press-event",
        G_CALLBACK (signature_key_press_cb), prefs);
}

GtkWidget *
em_composer_prefs_new (void)
{
    EMComposerPrefs *prefs;

    prefs = g_object_new (EM_TYPE_COMPOSER_PREFS, NULL);
    em_composer_prefs_construct (prefs);

    return GTK_WIDGET (prefs);
}