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/*
 * e-mail-config-local-accounts.c
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <config.h>
#include <glib/gi18n-lib.h>

#include <camel/camel.h>
#include <libebackend/libebackend.h>

#include <mail/e-mail-config-service-page.h>

/* Standard GObject macros */
#define E_TYPE_MAIL_CONFIG_LOCAL_BACKEND \
    (e_mail_config_local_backend_get_type ())
#define E_MAIL_CONFIG_LOCAL_BACKEND(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST \
    ((obj), E_TYPE_MAIL_CONFIG_LOCAL_BACKEND, EMailConfigLocalBackend))
#define E_MAIL_CONFIG_LOCAL_BACKEND_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_CAST \
    ((cls), E_TYPE_MAIL_CONFIG_LOCAL_BACKEND, EMailConfigLocalBackendClass))
#define E_IS_MAIL_CONFIG_LOCAL_BACKEND(obj) \
    (G_TYPE_CHECK_INSTANCE_TYPE \
    ((obj), E_TYPE_MAIL_CONFIG_LOCAL_BACKEND))
#define E_IS_MAIL_CONFIG_LOCAL_BACKEND_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_TYPE \
    ((cls), E_TYPE_MAIL_CONFIG_LOCAL_BACKEND))
#define E_MAIL_CONFIG_LOCAL_BACKEND_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS \
    ((obj), E_TYPE_MAIL_CONFIG_LOCAL_BACKEND, EMailConfigLocalBackendClass))

typedef struct _EMailConfigLocalBackend EMailConfigLocalBackend;
typedef struct _EMailConfigLocalBackendClass EMailConfigLocalBackendClass;

typedef EMailConfigLocalBackend EMailConfigMhBackend;
typedef EMailConfigLocalBackendClass EMailConfigMhBackendClass;

typedef EMailConfigLocalBackend EMailConfigMboxBackend;
typedef EMailConfigLocalBackendClass EMailConfigMboxBackendClass;

typedef EMailConfigLocalBackend EMailConfigMaildirBackend;
typedef EMailConfigLocalBackendClass EMailConfigMaildirBackendClass;

typedef EMailConfigLocalBackend EMailConfigSpoolDirBackend;
typedef EMailConfigLocalBackendClass EMailConfigSpoolDirBackendClass;

typedef EMailConfigLocalBackend EMailConfigSpoolFileBackend;
typedef EMailConfigLocalBackendClass EMailConfigSpoolFileBackendClass;

/* XXX For lack of a better place for this... */
typedef EMailConfigServiceBackend EMailConfigNoneBackend;
typedef EMailConfigServiceBackendClass EMailConfigNoneBackendClass;

struct _EMailConfigLocalBackend {
    EMailConfigServiceBackend parent;
};

struct _EMailConfigLocalBackendClass {
    EMailConfigServiceBackendClass parent_class;

    const gchar *file_chooser_label;
    const gchar *file_chooser_title;
    GtkFileChooserAction file_chooser_action;
};

/* Forward Declarations */
void        e_mail_config_local_accounts_register_types
                        (GTypeModule *type_module);
GType       e_mail_config_local_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_mh_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_mbox_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_maildir_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_spool_dir_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_spool_file_backend_get_type
                        (void) G_GNUC_CONST;
GType       e_mail_config_none_backend_get_type
                        (void) G_GNUC_CONST;

G_DEFINE_DYNAMIC_TYPE_EXTENDED (
    EMailConfigLocalBackend,
    e_mail_config_local_backend,
    E_TYPE_MAIL_CONFIG_SERVICE_BACKEND,
    G_TYPE_FLAG_ABSTRACT,
    /* no custom code */)

G_DEFINE_DYNAMIC_TYPE (
    EMailConfigMhBackend,
    e_mail_config_mh_backend,
    E_TYPE_MAIL_CONFIG_LOCAL_BACKEND)

G_DEFINE_DYNAMIC_TYPE (
    EMailConfigMboxBackend,
    e_mail_config_mbox_backend,
    E_TYPE_MAIL_CONFIG_LOCAL_BACKEND)

G_DEFINE_DYNAMIC_TYPE (
    EMailConfigMaildirBackend,
    e_mail_config_maildir_backend,
    E_TYPE_MAIL_CONFIG_LOCAL_BACKEND)

G_DEFINE_DYNAMIC_TYPE (
    EMailConfigSpoolDirBackend,
    e_mail_config_spool_dir_backend,
    E_TYPE_MAIL_CONFIG_LOCAL_BACKEND)

G_DEFINE_DYNAMIC_TYPE (
    EMailConfigSpoolFileBackend,
    e_mail_config_spool_file_backend,
    E_TYPE_MAIL_CONFIG_LOCAL_BACKEND)

/* XXX For lack of a better place for this... */
G_DEFINE_DYNAMIC_TYPE (
    EMailConfigNoneBackend,
    e_mail_config_none_backend,
    E_TYPE_MAIL_CONFIG_SERVICE_BACKEND)

static void
mail_config_local_backend_file_set_cb (GtkFileChooserButton *file_chooser_button,
                                       CamelLocalSettings *local_settings)
{
    GtkFileChooser *file_chooser;
    gchar *path;

    file_chooser = GTK_FILE_CHOOSER (file_chooser_button);

    path = gtk_file_chooser_get_filename (file_chooser);
    camel_local_settings_set_path (local_settings, path);
    g_free (path);
}

static void
mail_config_local_backend_insert_widgets (EMailConfigServiceBackend *backend,
                                          GtkBox *parent)
{
    CamelSettings *settings;
    EMailConfigLocalBackendClass *class;
    GtkLabel *label;
    GtkWidget *widget;
    GtkWidget *container;
    const gchar *path;

    class = E_MAIL_CONFIG_LOCAL_BACKEND_GET_CLASS (backend);
    settings = e_mail_config_service_backend_get_settings (backend);

    widget = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
    gtk_box_pack_start (parent, widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_label_new_with_mnemonic (class->file_chooser_label);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    label = GTK_LABEL (widget);

    widget = gtk_file_chooser_button_new (
        class->file_chooser_title,
        class->file_chooser_action);
    gtk_label_set_mnemonic_widget (label, widget);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    gtk_widget_show (widget);

    g_signal_connect (
        widget, "file-set",
        G_CALLBACK (mail_config_local_backend_file_set_cb),
        CAMEL_LOCAL_SETTINGS (settings));

    path = camel_local_settings_get_path (CAMEL_LOCAL_SETTINGS (settings));
    if (path != NULL)
        gtk_file_chooser_set_filename (
            GTK_FILE_CHOOSER (widget), path);
}

static gboolean
mail_config_local_backend_check_complete (EMailConfigServiceBackend *backend)
{
    CamelSettings *settings;
    CamelLocalSettings *local_settings;
    const gchar *path;

    settings = e_mail_config_service_backend_get_settings (backend);

    local_settings = CAMEL_LOCAL_SETTINGS (settings);
    path = camel_local_settings_get_path (local_settings);

    return (path != NULL && *path != '\0');
}

static void
mail_config_local_backend_commit_changes (EMailConfigServiceBackend *backend)
{
    /* CamelLocalSettings "path" property is already up-to-date,
     * and it's bound to the appropriate ESourceExtension property,
     * so nothing to do here. */
}

static void
e_mail_config_local_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->insert_widgets = mail_config_local_backend_insert_widgets;
    backend_class->check_complete = mail_config_local_backend_check_complete;
    backend_class->commit_changes = mail_config_local_backend_commit_changes;
}

static void
e_mail_config_local_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_local_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_mh_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->backend_name = "mh";

    class->file_chooser_label = _("Mail _Directory:");
    class->file_chooser_title = _("Choose a MH mail directory");
    class->file_chooser_action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
}

static void
e_mail_config_mh_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_mh_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_mbox_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->backend_name = "mbox";

    class->file_chooser_label = _("Local Delivery _File:");
    class->file_chooser_title = _("Choose a local delivery file");
    class->file_chooser_action = GTK_FILE_CHOOSER_ACTION_OPEN;
}

static void
e_mail_config_mbox_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_mbox_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_maildir_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->backend_name = "maildir";

    class->file_chooser_label = _("Mail _Directory:");
    class->file_chooser_title = _("Choose a Maildir mail directory");
    class->file_chooser_action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
}

static void
e_mail_config_maildir_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_maildir_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_spool_dir_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->backend_name = "spool";

    class->file_chooser_label = _("Spool _File:");
    class->file_chooser_title = _("Choose a mbox spool file");
    class->file_chooser_action = GTK_FILE_CHOOSER_ACTION_OPEN;
}

static void
e_mail_config_spool_dir_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_spool_dir_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_spool_file_backend_class_init (EMailConfigLocalBackendClass *class)
{
    EMailConfigServiceBackendClass *backend_class;

    backend_class = E_MAIL_CONFIG_SERVICE_BACKEND_CLASS (class);
    backend_class->backend_name = "spooldir";

    class->file_chooser_label = _("Spool _Directory:");
    class->file_chooser_title = _("Choose a mbox spool directory");
    class->file_chooser_action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
}

static void
e_mail_config_spool_file_backend_class_finalize (EMailConfigLocalBackendClass *class)
{
}

static void
e_mail_config_spool_file_backend_init (EMailConfigLocalBackend *backend)
{
}

static void
e_mail_config_none_backend_class_init (EMailConfigServiceBackendClass *class)
{
    class->backend_name = "none";
}

static void
e_mail_config_none_backend_class_finalize (EMailConfigServiceBackendClass *class)
{
}

static void
e_mail_config_none_backend_init (EMailConfigServiceBackend *backend)
{
}

void
e_mail_config_local_accounts_register_types (GTypeModule *type_module)
{
    /* Abstract base type */
    e_mail_config_local_backend_register_type (type_module);

    /* Concrete sub-types */
    e_mail_config_mh_backend_register_type (type_module);
    e_mail_config_mbox_backend_register_type (type_module);
    e_mail_config_maildir_backend_register_type (type_module);
    e_mail_config_spool_dir_backend_register_type (type_module);
    e_mail_config_spool_file_backend_register_type (type_module);

    /* XXX For lack of a better place for this... */
    e_mail_config_none_backend_register_type (type_module);
}