path: root/modules/settings/e-settings-deprecated.c

/*
 * e-settings-deprecated.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; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 */

/* This class is different from the others in this module.  Its purpose
 * is to transfer values from deprecated GSettings keys to the preferred
 * keys on startup, and keep them synchronized at all times for backward
 * compatibility. */

#include "e-settings-deprecated.h"

#include <shell/e-shell.h>
#include <libemail-engine/e-mail-enums.h>

#define E_SETTINGS_DEPRECATED_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_SETTINGS_DEPRECATED, ESettingsDeprecatedPrivate))

struct _ESettingsDeprecatedPrivate {
    GSettings *calendar_settings;
    gulong week_start_day_name_handler_id;
    gulong work_day_monday_handler_id;
    gulong work_day_tuesday_handler_id;
    gulong work_day_wednesday_handler_id;
    gulong work_day_thursday_handler_id;
    gulong work_day_friday_handler_id;
    gulong work_day_saturday_handler_id;
    gulong work_day_sunday_handler_id;

    GSettings *mail_settings;
    gulong forward_style_name_handler_id;
    gulong reply_style_name_handler_id;
    gulong image_loading_policy_handler_id;
};

/* Flag values used in the "working-days" key. */
enum {
    DEPRECATED_WORKING_DAYS_SUNDAY    = 1 << 0,
    DEPRECATED_WORKING_DAYS_MONDAY    = 1 << 1,
    DEPRECATED_WORKING_DAYS_TUESDAY   = 1 << 2,
    DEPRECATED_WORKING_DAYS_WEDNESDAY = 1 << 3,
    DEPRECATED_WORKING_DAYS_THURSDAY  = 1 << 4,
    DEPRECATED_WORKING_DAYS_FRIDAY    = 1 << 5,
    DEPRECATED_WORKING_DAYS_SATURDAY  = 1 << 6
};

G_DEFINE_DYNAMIC_TYPE (
    ESettingsDeprecated,
    e_settings_deprecated,
    E_TYPE_EXTENSION)

static void
settings_deprecated_week_start_day_name_cb (GSettings *settings,
                                            const gchar *key)
{
    GDateWeekday weekday;
    gint tm_wday;

    weekday = g_settings_get_enum (settings, "week-start-day-name");
    tm_wday = e_weekday_to_tm_wday (weekday);
    g_settings_set_int (settings, "week-start-day", tm_wday);
}

static void
settings_deprecated_work_day_monday_cb (GSettings *settings,
                                        const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-monday"))
        flags |= DEPRECATED_WORKING_DAYS_MONDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_MONDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_tuesday_cb (GSettings *settings,
                                         const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-tuesday"))
        flags |= DEPRECATED_WORKING_DAYS_TUESDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_TUESDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_wednesday_cb (GSettings *settings,
                                           const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-wednesday"))
        flags |= DEPRECATED_WORKING_DAYS_WEDNESDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_WEDNESDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_thursday_cb (GSettings *settings,
                                          const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-thursday"))
        flags |= DEPRECATED_WORKING_DAYS_THURSDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_THURSDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_friday_cb (GSettings *settings,
                                        const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-friday"))
        flags |= DEPRECATED_WORKING_DAYS_FRIDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_FRIDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_saturday_cb (GSettings *settings,
                                          const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-saturday"))
        flags |= DEPRECATED_WORKING_DAYS_SATURDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_SATURDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_work_day_sunday_cb (GSettings *settings,
                                        const gchar *key)
{
    gint flags;

    flags = g_settings_get_int (settings, "working-days");
    if (g_settings_get_boolean (settings, "work-day-sunday"))
        flags |= DEPRECATED_WORKING_DAYS_SUNDAY;
    else
        flags &= ~DEPRECATED_WORKING_DAYS_SUNDAY;
    g_settings_set_int (settings, "working-days", flags);
}

static void
settings_deprecated_forward_style_name_cb (GSettings *settings,
                                           const gchar *key)
{
    EMailForwardStyle style;

    style = g_settings_get_enum (settings, "forward-style-name");
    g_settings_set_int (settings, "forward-style", style);
}

static void
settings_deprecated_reply_style_name_cb (GSettings *settings,
                                         const gchar *key)
{
    /* XXX The "reply-style" key uses a completely different
     *     numbering than the EMailReplyStyle enum.  *sigh* */
    switch (g_settings_get_enum (settings, "reply-style-name")) {
        case E_MAIL_REPLY_STYLE_QUOTED:
            g_settings_set_int (settings, "reply-style", 2);
            break;
        case E_MAIL_REPLY_STYLE_DO_NOT_QUOTE:
            g_settings_set_int (settings, "reply-style", 3);
            break;
        case E_MAIL_REPLY_STYLE_ATTACH:
            g_settings_set_int (settings, "reply-style", 0);
            break;
        case E_MAIL_REPLY_STYLE_OUTLOOK:
            g_settings_set_int (settings, "reply-style", 1);
            break;
        default:
            g_warn_if_reached ();
    }
}

static void
settings_deprecated_image_loading_policy_cb (GSettings *settings,
                                             const gchar *key)
{
    EMailImageLoadingPolicy policy;

    policy = g_settings_get_enum (settings, "image-loading-policy");
    g_settings_set_int (settings, "load-http-images", policy);
}

static void
settings_deprecated_dispose (GObject *object)
{
    ESettingsDeprecatedPrivate *priv;

    priv = E_SETTINGS_DEPRECATED_GET_PRIVATE (object);

    if (priv->week_start_day_name_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->week_start_day_name_handler_id);
        priv->week_start_day_name_handler_id = 0;
    }

    if (priv->work_day_monday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_monday_handler_id);
        priv->work_day_monday_handler_id = 0;
    }

    if (priv->work_day_tuesday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_tuesday_handler_id);
        priv->work_day_tuesday_handler_id = 0;
    }

    if (priv->work_day_wednesday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_wednesday_handler_id);
        priv->work_day_wednesday_handler_id = 0;
    }

    if (priv->work_day_thursday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_thursday_handler_id);
        priv->work_day_thursday_handler_id = 0;
    }

    if (priv->work_day_friday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_friday_handler_id);
        priv->work_day_friday_handler_id = 0;
    }

    if (priv->work_day_saturday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_saturday_handler_id);
        priv->work_day_saturday_handler_id = 0;
    }

    if (priv->work_day_sunday_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->calendar_settings,
            priv->work_day_sunday_handler_id);
        priv->work_day_sunday_handler_id = 0;
    }

    if (priv->forward_style_name_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->mail_settings,
            priv->forward_style_name_handler_id);
        priv->forward_style_name_handler_id = 0;
    }

    if (priv->reply_style_name_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->mail_settings,
            priv->reply_style_name_handler_id);
        priv->reply_style_name_handler_id = 0;
    }

    if (priv->image_loading_policy_handler_id > 0) {
        g_signal_handler_disconnect (
            priv->mail_settings,
            priv->image_loading_policy_handler_id);
        priv->image_loading_policy_handler_id = 0;
    }

    g_clear_object (&priv->calendar_settings);
    g_clear_object (&priv->mail_settings);

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

static void
settings_deprecated_constructed (GObject *object)
{
    ESettingsDeprecatedPrivate *priv;
    gulong handler_id;
    gint int_value;

    priv = E_SETTINGS_DEPRECATED_GET_PRIVATE (object);

    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (e_settings_deprecated_parent_class)->
        constructed (object);

    /* Migrate values from deprecated to preferred keys. */

    int_value = g_settings_get_int (
        priv->calendar_settings, "week-start-day");
    g_settings_set_enum (
        priv->calendar_settings, "week-start-day-name",
        e_weekday_from_tm_wday (int_value));

    int_value = g_settings_get_int (
        priv->calendar_settings, "working-days");
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-monday",
        (int_value & DEPRECATED_WORKING_DAYS_MONDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-tuesday",
        (int_value & DEPRECATED_WORKING_DAYS_TUESDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-wednesday",
        (int_value & DEPRECATED_WORKING_DAYS_WEDNESDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-thursday",
        (int_value & DEPRECATED_WORKING_DAYS_THURSDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-friday",
        (int_value & DEPRECATED_WORKING_DAYS_FRIDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-saturday",
        (int_value & DEPRECATED_WORKING_DAYS_SATURDAY) != 0);
    g_settings_set_boolean (
        priv->calendar_settings, "work-day-sunday",
        (int_value & DEPRECATED_WORKING_DAYS_SUNDAY) != 0);

    int_value = g_settings_get_int (
        priv->mail_settings, "forward-style");
    g_settings_set_enum (
        priv->mail_settings, "forward-style-name", int_value);

    /* XXX The "reply-style" key uses a completely different
     *     numbering than the EMailReplyStyle enum.  *sigh* */
    switch (g_settings_get_int (priv->mail_settings, "reply-style")) {
        case 0:
            g_settings_set_enum (
                priv->mail_settings,
                "reply-style-name",
                E_MAIL_REPLY_STYLE_ATTACH);
            break;
        case 1:
            g_settings_set_enum (
                priv->mail_settings,
                "reply-style-name",
                E_MAIL_REPLY_STYLE_OUTLOOK);
            break;
        case 2:
            g_settings_set_enum (
                priv->mail_settings,
                "reply-style-name",
                E_MAIL_REPLY_STYLE_QUOTED);
            break;
        case 3:
            g_settings_set_enum (
                priv->mail_settings,
                "reply-style-name",
                E_MAIL_REPLY_STYLE_DO_NOT_QUOTE);
            break;
        default:
            /* do nothing */
            break;
    }

    int_value = g_settings_get_int (
        priv->mail_settings, "load-http-images");
    g_settings_set_enum (
        priv->mail_settings, "image-loading-policy", int_value);

    /* Write changes back to the deprecated keys. */

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::week-start-day-name",
        G_CALLBACK (settings_deprecated_week_start_day_name_cb), NULL);
    priv->week_start_day_name_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-monday",
        G_CALLBACK (settings_deprecated_work_day_monday_cb), NULL);
    priv->work_day_monday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-tuesday",
        G_CALLBACK (settings_deprecated_work_day_tuesday_cb), NULL);
    priv->work_day_tuesday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-wednesday",
        G_CALLBACK (settings_deprecated_work_day_wednesday_cb), NULL);
    priv->work_day_wednesday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-thursday",
        G_CALLBACK (settings_deprecated_work_day_thursday_cb), NULL);
    priv->work_day_thursday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-friday",
        G_CALLBACK (settings_deprecated_work_day_friday_cb), NULL);
    priv->work_day_friday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-saturday",
        G_CALLBACK (settings_deprecated_work_day_saturday_cb), NULL);
    priv->work_day_saturday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->calendar_settings, "changed::work-day-sunday",
        G_CALLBACK (settings_deprecated_work_day_sunday_cb), NULL);
    priv->work_day_sunday_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->mail_settings, "changed::forward-style-name",
        G_CALLBACK (settings_deprecated_forward_style_name_cb), NULL);
    priv->forward_style_name_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->mail_settings, "changed::reply-style-name",
        G_CALLBACK (settings_deprecated_reply_style_name_cb), NULL);
    priv->reply_style_name_handler_id = handler_id;

    handler_id = g_signal_connect (
        priv->mail_settings, "changed::image-loading-policy",
        G_CALLBACK (settings_deprecated_image_loading_policy_cb), NULL);
}

static void
e_settings_deprecated_class_init (ESettingsDeprecatedClass *class)
{
    GObjectClass *object_class;
    EExtensionClass *extension_class;

    g_type_class_add_private (class, sizeof (ESettingsDeprecatedPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->dispose = settings_deprecated_dispose;
    object_class->constructed = settings_deprecated_constructed;

    extension_class = E_EXTENSION_CLASS (class);
    extension_class->extensible_type = E_TYPE_SHELL;
}

static void
e_settings_deprecated_class_finalize (ESettingsDeprecatedClass *class)
{
}

static void
e_settings_deprecated_init (ESettingsDeprecated *extension)
{
    GSettings *settings;

    extension->priv = E_SETTINGS_DEPRECATED_GET_PRIVATE (extension);

    settings = g_settings_new ("org.gnome.evolution.calendar");
    extension->priv->calendar_settings = settings;

    settings = g_settings_new ("org.gnome.evolution.mail");
    extension->priv->mail_settings = settings;
}

void
e_settings_deprecated_type_register (GTypeModule *type_module)
{
    /* XXX G_DEFINE_DYNAMIC_TYPE declares a static type registration
     *     function, so we have to wrap it with a public function in
     *     order to register types from a separate compilation unit. */
    e_settings_deprecated_register_type (type_module);
}