static void
battery_status_plugin_update_ui (BatteryStatusAreaItem *plugin)
{
    BatteryStatusAreaItemPrivate *priv = BATTERY_STATUS_PLUGIN_GET_PRIVATE (plugin);
    gchar *battery_charge_image_name;
    gchar percentage_text[64];

    if (priv->is_charging)
    {
        hildon_button_set_value (HILDON_BUTTON (plugin->priv->button), dgettext ("osso-dsm-ui", "incf_me_battery_charging"));
        return;
    }

    switch (priv->number_of_bars)
    {
        case 0:
            battery_charge_image_name = "statusarea_battery_low";
            break;
        case 1:
            battery_charge_image_name = "statusarea_battery_full13";
            break;
        case 2:
            battery_charge_image_name = "statusarea_battery_full25";
            break;
        case 3:
            battery_charge_image_name = "statusarea_battery_full38";
            break;
        case 4:
            battery_charge_image_name = "statusarea_battery_full50";
            break;
        case 5:
            battery_charge_image_name = "statusarea_battery_full63";
            break;
        case 6:
            battery_charge_image_name = "statusarea_battery_full75";
            break;
        case 7:
            battery_charge_image_name = "statusarea_battery_full88";
            break;
        case 8:
            battery_charge_image_name = "statusarea_battery_full100";
            break;
    }

    GtkIconTheme *icon_theme = gtk_icon_theme_get_default ();
    GdkPixbuf *pixbuf = gtk_icon_theme_load_icon (icon_theme, battery_charge_image_name,
                    18, GTK_ICON_LOOKUP_NO_SVG, NULL);
    hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), pixbuf);
    g_object_unref (pixbuf);

    pixbuf = gtk_icon_theme_load_icon (icon_theme, battery_charge_image_name,
                                                  48, GTK_ICON_LOOKUP_NO_SVG, NULL);
    hildon_button_set_image (HILDON_BUTTON (plugin->priv->button),
                             gtk_image_new_from_pixbuf (pixbuf));
    g_object_unref (pixbuf);

    g_snprintf (percentage_text, sizeof (percentage_text), "%d%%, %d mAh", priv->percentage, priv->current);
    hildon_button_set_value (HILDON_BUTTON (plugin->priv->button), percentage_text);

    g_free (battery_charge_image_name);
}

static void
battery_status_plugin_get_values (BatteryStatusAreaItem *plugin)
{
    BatteryStatusAreaItemPrivate *priv = BATTERY_STATUS_PLUGIN_GET_PRIVATE (plugin);
    gboolean is_charging;
    int number_of_bars;

    is_charging = libhal_device_get_property_bool (priv->ctx, BME_HAL_UDI, BME_HAL_IS_CHARGING_KEY, NULL);
    if (priv->is_charging != is_charging)
    {
        priv->is_charging = is_charging;
        if (is_charging)
            hildon_banner_show_information (GTK_WIDGET (plugin), NULL, dgettext ("osso-dsm-ui", "incf_ib_battery_charging"));
        else
            hildon_banner_show_information (GTK_WIDGET (plugin), NULL, dgettext ("osso-dsm-ui", "incf_ib_disconnect_charger"));
    }

    number_of_bars = libhal_device_get_property_int (priv->ctx, BME_HAL_UDI, BME_HAL_BARS_KEY, NULL);
    if (priv->number_of_bars != number_of_bars)
    {
        priv->number_of_bars = number_of_bars;
        if (priv->number_of_bars == 0)
            hildon_banner_show_information_override_dnd (GTK_WIDGET (plugin), dgettext ("osso-dsm-ui", "incf_ib_battery_low"));
    }

    priv->percentage = libhal_device_get_property_int (priv->ctx, BME_HAL_UDI, BME_HAL_PERCENTAGE_KEY, NULL);
    priv->current = libhal_device_get_property_int (priv->ctx, BME_HAL_UDI, BME_HAL_CURRENT_KEY, NULL);

    battery_status_plugin_update_ui (plugin);
}