/*
* Copyright 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, 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 warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see .
*
* Authors:
* Charles Kerr
*/
#include "device.h"
#include "device-provider.h"
#include "notifier.h"
#include "service.h"
#include
#include
#include
G_DEFINE_TYPE(IndicatorPowerNotifier,
indicator_power_notifier,
G_TYPE_OBJECT)
enum
{
PROP_0,
PROP_DEVICE_PROVIDER,
LAST_PROP
};
static GParamSpec * properties[LAST_PROP];
static int n_notifiers = 0;
struct _IndicatorPowerNotifierPrivate
{
IndicatorPowerDeviceProvider * device_provider;
IndicatorPowerDevice * primary_device;
gdouble battery_level;
time_t time_remaining;
NotifyNotification* notify_notification;
};
typedef IndicatorPowerNotifierPrivate priv_t;
/***
****
***/
static void
emit_critical_signal(IndicatorPowerNotifier * self G_GNUC_UNUSED)
{
g_message("FIXME %s %s", G_STRFUNC, G_STRLOC);
}
static void
emit_hide_signal(IndicatorPowerNotifier * self G_GNUC_UNUSED)
{
g_message("FIXME %s %s", G_STRFUNC, G_STRLOC);
}
static void
emit_show_signal(IndicatorPowerNotifier * self G_GNUC_UNUSED)
{
g_message("FIXME %s %s", G_STRFUNC, G_STRLOC);
}
static void
notification_clear(IndicatorPowerNotifier * self)
{
priv_t * p = self->priv;
if (p->notify_notification != NULL)
{
notify_notification_clear_actions(p->notify_notification);
g_signal_handlers_disconnect_by_data(p->notify_notification, self);
g_clear_object(&p->notify_notification);
emit_hide_signal(self);
}
}
static void
on_notification_clicked(NotifyNotification * notify_notification G_GNUC_UNUSED,
char * action G_GNUC_UNUSED,
gpointer gself G_GNUC_UNUSED)
{
/* no-op */
}
static void
notification_show(IndicatorPowerNotifier * self,
IndicatorPowerDevice * device)
{
priv_t * p = self->priv;
char * body;
NotifyNotification * nn;
// if there's already a notification, tear it down
if (p->notify_notification != NULL)
{
notification_clear (self);
}
// create the notification
body = g_strdup_printf(_("%d%% charge remaining"), (int)indicator_power_device_get_percentage(device));
p->notify_notification = nn = notify_notification_new(_("Battery Low"), body, NULL);
notify_notification_set_hint(nn, "x-canonical-snap-decisions", g_variant_new_boolean(TRUE));
notify_notification_set_hint(nn, "x-canonical-private-button-tint", g_variant_new_boolean(TRUE));
notify_notification_add_action(nn, "OK", _("OK"), on_notification_clicked, self, NULL);
g_signal_connect_swapped(nn, "closed", G_CALLBACK(notification_clear), self);
// show the notification
GError* error = NULL;
notify_notification_show(nn, &error);
if (error != NULL)
{
g_critical("Unable to show snap decision for '%s': %s", body, error->message);
g_error_free(error);
}
else
{
emit_show_signal(self);
}
g_free (body);
}
static void
on_battery_level_changed(IndicatorPowerNotifier * self G_GNUC_UNUSED,
IndicatorPowerDevice * device,
gdouble old_value,
gdouble new_value)
{
static const double critical_level = 2.0;
static const double very_low_level = 5.0;
static const double low_level = 48.0;
if (indicator_power_device_get_state(device) != UP_DEVICE_STATE_DISCHARGING)
return;
g_message ("%s - %s - %f - %f", G_STRFUNC, indicator_power_device_get_object_path(device), old_value, new_value);
if ((old_value > critical_level) && (new_value <= critical_level))
{
emit_critical_signal(self);
}
else if ((old_value > very_low_level) && (new_value <= very_low_level))
{
notification_show(self, device);
}
else if ((old_value > low_level) && (new_value <= low_level))
{
notification_show(self, device);
}
}
static void
on_devices_changed(IndicatorPowerNotifier * self)
{
priv_t * p = self->priv;
GList * devices;
// find the primary device
devices = indicator_power_device_provider_get_devices(p->device_provider);
g_clear_object(&p->primary_device);
p->primary_device = indicator_power_service_choose_primary_device (devices);
g_list_free_full (devices, (GDestroyNotify)g_object_unref);
if (p->primary_device != NULL)
{
// test for battery level change
const gdouble old_level = (int)(p->battery_level*1000) ? p->battery_level : 100.0;
const gdouble new_level = indicator_power_device_get_percentage(p->primary_device);
if ((int)(old_level*1000) != (int)(new_level*1000))
on_battery_level_changed (self, p->primary_device, old_level, new_level);
p->battery_level = new_level;
p->time_remaining = indicator_power_device_get_time (p->primary_device);
}
}
/***
**** GObject virtual functions
***/
static void
my_get_property (GObject * o,
guint property_id,
GValue * value,
GParamSpec * pspec)
{
IndicatorPowerNotifier * self = INDICATOR_POWER_NOTIFIER (o);
priv_t * p = self->priv;
switch (property_id)
{
case PROP_DEVICE_PROVIDER:
g_value_set_object (value, p->device_provider);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
}
}
static void
my_set_property (GObject * o,
guint property_id,
const GValue * value,
GParamSpec * pspec)
{
IndicatorPowerNotifier * self = INDICATOR_POWER_NOTIFIER (o);
switch (property_id)
{
case PROP_DEVICE_PROVIDER:
indicator_power_notifier_set_device_provider (self, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
}
}
static void
my_dispose (GObject * o)
{
IndicatorPowerNotifier * self = INDICATOR_POWER_NOTIFIER(o);
indicator_power_notifier_set_device_provider(self, NULL);
notification_clear(self);
G_OBJECT_CLASS (indicator_power_notifier_parent_class)->dispose (o);
}
static void
my_finalize (GObject * o G_GNUC_UNUSED)
{
if (!--n_notifiers)
notify_uninit();
}
/***
**** Instantiation
***/
static void
indicator_power_notifier_init (IndicatorPowerNotifier * self)
{
priv_t * p = G_TYPE_INSTANCE_GET_PRIVATE (self,
INDICATOR_TYPE_POWER_NOTIFIER,
IndicatorPowerNotifierPrivate);
self->priv = p;
//p->battery_levels = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
if (!n_notifiers++ && !notify_init("indicator-power-service"))
g_critical("Unable to initialize libnotify! Notifications might not be shown.");
}
static void
indicator_power_notifier_class_init (IndicatorPowerNotifierClass * klass)
{
GObjectClass * object_class = G_OBJECT_CLASS (klass);
object_class->dispose = my_dispose;
object_class->finalize = my_finalize;
object_class->get_property = my_get_property;
object_class->set_property = my_set_property;
g_type_class_add_private (klass, sizeof (IndicatorPowerNotifierPrivate));
properties[PROP_0] = NULL;
properties[PROP_DEVICE_PROVIDER] = g_param_spec_object (
"device-provider",
"Device Provider",
"Source for power devices",
G_TYPE_OBJECT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, LAST_PROP, properties);
}
/***
**** Public API
***/
IndicatorPowerNotifier *
indicator_power_notifier_new (IndicatorPowerDeviceProvider * device_provider)
{
GObject * o = g_object_new (INDICATOR_TYPE_POWER_NOTIFIER,
"device-provider", device_provider,
NULL);
return INDICATOR_POWER_NOTIFIER (o);
}
void
indicator_power_notifier_set_device_provider(IndicatorPowerNotifier * self,
IndicatorPowerDeviceProvider * dp)
{
priv_t * p;
g_return_if_fail(INDICATOR_IS_POWER_NOTIFIER(self));
g_return_if_fail(!dp || INDICATOR_IS_POWER_DEVICE_PROVIDER(dp));
p = self->priv;
if (p->device_provider != NULL)
{
g_signal_handlers_disconnect_by_data(p->device_provider, self);
g_clear_object(&p->device_provider);
g_clear_object(&p->primary_device);
}
if (dp != NULL)
{
p->device_provider = g_object_ref(dp);
g_signal_connect_swapped(p->device_provider, "devices-changed",
G_CALLBACK(on_devices_changed), self);
on_devices_changed(self);
}
}