path: root/modules/cal-config-weather/e-source-weather.c

/*
 * e-source-weather.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 <webcal://www.gnu.org/licenses/>
 *
 */

#include "e-source-weather.h"

#define E_SOURCE_WEATHER_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_SOURCE_WEATHER, ESourceWeatherPrivate))

struct _ESourceWeatherPrivate {
    GMutex property_lock;
    ESourceWeatherUnits units;
    gchar *location;
};

enum {
    PROP_0,
    PROP_LOCATION,
    PROP_UNITS
};

static GType e_source_weather_units_type = G_TYPE_INVALID;

G_DEFINE_DYNAMIC_TYPE (
    ESourceWeather,
    e_source_weather,
    E_TYPE_SOURCE_EXTENSION)

static void
source_weather_set_property (GObject *object,
                             guint property_id,
                             const GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_LOCATION:
            e_source_weather_set_location (
                E_SOURCE_WEATHER (object),
                g_value_get_string (value));
            return;

        case PROP_UNITS:
            e_source_weather_set_units (
                E_SOURCE_WEATHER (object),
                g_value_get_enum (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
source_weather_get_property (GObject *object,
                             guint property_id,
                             GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_LOCATION:
            g_value_take_string (
                value,
                e_source_weather_dup_location (
                E_SOURCE_WEATHER (object)));
            return;

        case PROP_UNITS:
            g_value_set_enum (
                value,
                e_source_weather_get_units (
                E_SOURCE_WEATHER (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
source_weather_finalize (GObject *object)
{
    ESourceWeatherPrivate *priv;

    priv = E_SOURCE_WEATHER_GET_PRIVATE (object);

    g_mutex_clear (&priv->property_lock);

    g_free (priv->location);

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

static void
e_source_weather_class_init (ESourceWeatherClass *class)
{
    GObjectClass *object_class;
    ESourceExtensionClass *extension_class;

    g_type_class_add_private (class, sizeof (ESourceWeatherPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = source_weather_set_property;
    object_class->get_property = source_weather_get_property;
    object_class->finalize = source_weather_finalize;

    extension_class = E_SOURCE_EXTENSION_CLASS (class);
    extension_class->name = E_SOURCE_EXTENSION_WEATHER_BACKEND;

    g_object_class_install_property (
        object_class,
        PROP_LOCATION,
        g_param_spec_string (
            "location",
            "Location",
            "Weather location code",
            NULL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT |
            E_SOURCE_PARAM_SETTING));

    g_object_class_install_property (
        object_class,
        PROP_UNITS,
        g_param_spec_enum (
            "units",
            "Units",
            "Metric or imperial units",
            E_TYPE_SOURCE_WEATHER_UNITS,
            E_SOURCE_WEATHER_UNITS_METRIC,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT |
            E_SOURCE_PARAM_SETTING));
}

static void
e_source_weather_class_finalize (ESourceWeatherClass *class)
{
}

static void
e_source_weather_init (ESourceWeather *extension)
{
    extension->priv = E_SOURCE_WEATHER_GET_PRIVATE (extension);
    g_mutex_init (&extension->priv->property_lock);
}

void
e_source_weather_type_register (GTypeModule *type_module)
{
    static const GEnumValue e_source_weather_units_values[] = {
        { E_SOURCE_WEATHER_UNITS_METRIC,
          "E_SOURCE_WEATHER_UNITS_METRIC",
          "metric" },
        { E_SOURCE_WEATHER_UNITS_IMPERIAL,
          "E_SOURCE_WEATHER_UNITS_IMPERIAL",
          "imperial" },
        { 0, NULL, NULL }
    };

    e_source_weather_units_type =
        g_type_module_register_enum (
        type_module, "ESourceWeatherUnits",
        e_source_weather_units_values);

    /* 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_source_weather_register_type (type_module);
}

const gchar *
e_source_weather_get_location (ESourceWeather *extension)
{
    g_return_val_if_fail (E_IS_SOURCE_WEATHER (extension), NULL);

    return extension->priv->location;
}

gchar *
e_source_weather_dup_location (ESourceWeather *extension)
{
    const gchar *protected;
    gchar *duplicate;

    g_return_val_if_fail (E_IS_SOURCE_WEATHER (extension), NULL);

    g_mutex_lock (&extension->priv->property_lock);

    protected = e_source_weather_get_location (extension);
    duplicate = g_strdup (protected);

    g_mutex_unlock (&extension->priv->property_lock);

    return duplicate;
}

void
e_source_weather_set_location (ESourceWeather *extension,
                               const gchar *location)
{
    gchar *new_location;

    g_return_if_fail (E_IS_SOURCE_WEATHER (extension));

    g_mutex_lock (&extension->priv->property_lock);

    new_location = e_util_strdup_strip (location);
    if (g_strcmp0 (extension->priv->location, new_location) == 0) {
        g_mutex_unlock (&extension->priv->property_lock);
        g_free (new_location);
        return;
    }

    g_free (extension->priv->location);
    extension->priv->location = new_location;

    g_mutex_unlock (&extension->priv->property_lock);

    g_object_notify (G_OBJECT (extension), "location");
}

ESourceWeatherUnits
e_source_weather_get_units (ESourceWeather *extension)
{
    g_return_val_if_fail (E_IS_SOURCE_WEATHER (extension), 0);

    return extension->priv->units;
}

void
e_source_weather_set_units (ESourceWeather *extension,
                            ESourceWeatherUnits units)
{
    g_return_if_fail (E_IS_SOURCE_WEATHER (extension));

    if (extension->priv->units == units)
        return;

    extension->priv->units = units;

    g_object_notify (G_OBJECT (extension), "units");
}

GType
e_source_weather_units_get_type (void)
{
    return e_source_weather_units_type;
}