1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright 2021 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19 #include "config.h"
20
21 #include "gpowerprofilemonitor.h"
22 #include "gpowerprofilemonitorportal.h"
23 #include "gdbuserror.h"
24 #include "gdbusproxy.h"
25 #include "ginitable.h"
26 #include "gioerror.h"
27 #include "giomodule-priv.h"
28 #include "gportalsupport.h"
29
30 #define G_POWER_PROFILE_MONITOR_PORTAL_GET_INITABLE_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), G_TYPE_INITABLE, GInitable))
31
32 static void g_power_profile_monitor_portal_iface_init (GPowerProfileMonitorInterface *iface);
33 static void g_power_profile_monitor_portal_initable_iface_init (GInitableIface *iface);
34
35 typedef enum
36 {
37 PROP_POWER_SAVER_ENABLED = 1,
38 } GPowerProfileMonitorPortalProperty;
39
40 struct _GPowerProfileMonitorPortal
41 {
42 GObject parent_instance;
43
44 GDBusProxy *proxy;
45 gulong signal_id;
46 gboolean power_saver_enabled;
47 };
48
49 G_DEFINE_TYPE_WITH_CODE (GPowerProfileMonitorPortal, g_power_profile_monitor_portal, G_TYPE_OBJECT,
50 G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
51 g_power_profile_monitor_portal_initable_iface_init)
52 G_IMPLEMENT_INTERFACE (G_TYPE_POWER_PROFILE_MONITOR,
53 g_power_profile_monitor_portal_iface_init)
54 _g_io_modules_ensure_extension_points_registered ();
55 g_io_extension_point_implement (G_POWER_PROFILE_MONITOR_EXTENSION_POINT_NAME,
56 g_define_type_id,
57 "portal",
58 40))
59
60 static void
g_power_profile_monitor_portal_init(GPowerProfileMonitorPortal * portal)61 g_power_profile_monitor_portal_init (GPowerProfileMonitorPortal *portal)
62 {
63 }
64
65 static void
proxy_properties_changed(GDBusProxy * proxy,GVariant * changed_properties,GStrv invalidated_properties,gpointer user_data)66 proxy_properties_changed (GDBusProxy *proxy,
67 GVariant *changed_properties,
68 GStrv invalidated_properties,
69 gpointer user_data)
70 {
71 GPowerProfileMonitorPortal *ppm = user_data;
72 gboolean power_saver_enabled;
73
74 if (!g_variant_lookup (changed_properties, "power-saver-enabled", "b", &power_saver_enabled))
75 return;
76
77 if (power_saver_enabled == ppm->power_saver_enabled)
78 return;
79
80 ppm->power_saver_enabled = power_saver_enabled;
81 g_object_notify (G_OBJECT (ppm), "power-saver-enabled");
82 }
83
84 static void
g_power_profile_monitor_portal_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)85 g_power_profile_monitor_portal_get_property (GObject *object,
86 guint prop_id,
87 GValue *value,
88 GParamSpec *pspec)
89 {
90 GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (object);
91
92 switch ((GPowerProfileMonitorPortalProperty) prop_id)
93 {
94 case PROP_POWER_SAVER_ENABLED:
95 g_value_set_boolean (value, ppm->power_saver_enabled);
96 break;
97
98 default:
99 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
100 }
101 }
102
103 static gboolean
g_power_profile_monitor_portal_initable_init(GInitable * initable,GCancellable * cancellable,GError ** error)104 g_power_profile_monitor_portal_initable_init (GInitable *initable,
105 GCancellable *cancellable,
106 GError **error)
107 {
108 GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (initable);
109 GDBusProxy *proxy;
110 gchar *name_owner;
111 GVariant *power_saver_enabled_v = NULL;
112
113 if (!glib_should_use_portal ())
114 {
115 g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Not using portals");
116 return FALSE;
117 }
118
119 proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
120 G_DBUS_PROXY_FLAGS_NONE,
121 NULL,
122 "org.freedesktop.portal.Desktop",
123 "/org/freedesktop/portal/desktop",
124 "org.freedesktop.portal.PowerProfileMonitor",
125 cancellable,
126 error);
127 if (!proxy)
128 return FALSE;
129
130 name_owner = g_dbus_proxy_get_name_owner (proxy);
131
132 if (name_owner == NULL)
133 {
134 g_object_unref (proxy);
135 g_set_error (error,
136 G_DBUS_ERROR,
137 G_DBUS_ERROR_NAME_HAS_NO_OWNER,
138 "Desktop portal not found");
139 return FALSE;
140 }
141
142 g_free (name_owner);
143
144 ppm->signal_id = g_signal_connect (proxy, "g-properties-changed",
145 G_CALLBACK (proxy_properties_changed), ppm);
146
147 power_saver_enabled_v = g_dbus_proxy_get_cached_property (proxy, "power-saver-enabled");
148 if (power_saver_enabled_v != NULL &&
149 g_variant_is_of_type (power_saver_enabled_v, G_VARIANT_TYPE_BOOLEAN))
150 ppm->power_saver_enabled = g_variant_get_boolean (power_saver_enabled_v);
151 g_clear_pointer (&power_saver_enabled_v, g_variant_unref);
152
153 ppm->proxy = g_steal_pointer (&proxy);
154
155 return TRUE;
156 }
157
158 static void
g_power_profile_monitor_portal_finalize(GObject * object)159 g_power_profile_monitor_portal_finalize (GObject *object)
160 {
161 GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (object);
162
163 g_clear_signal_handler (&ppm->signal_id, ppm->proxy);
164 g_clear_object (&ppm->proxy);
165
166 G_OBJECT_CLASS (g_power_profile_monitor_portal_parent_class)->finalize (object);
167 }
168
169 static void
g_power_profile_monitor_portal_class_init(GPowerProfileMonitorPortalClass * nl_class)170 g_power_profile_monitor_portal_class_init (GPowerProfileMonitorPortalClass *nl_class)
171 {
172 GObjectClass *gobject_class = G_OBJECT_CLASS (nl_class);
173
174 gobject_class->get_property = g_power_profile_monitor_portal_get_property;
175 gobject_class->finalize = g_power_profile_monitor_portal_finalize;
176
177 g_object_class_override_property (gobject_class, PROP_POWER_SAVER_ENABLED, "power-saver-enabled");
178 }
179
180 static void
g_power_profile_monitor_portal_iface_init(GPowerProfileMonitorInterface * monitor_iface)181 g_power_profile_monitor_portal_iface_init (GPowerProfileMonitorInterface *monitor_iface)
182 {
183 }
184
185 static void
g_power_profile_monitor_portal_initable_iface_init(GInitableIface * iface)186 g_power_profile_monitor_portal_initable_iface_init (GInitableIface *iface)
187 {
188 iface->init = g_power_profile_monitor_portal_initable_init;
189 }
190