From 4a15e42c41415a8c9cc59e23c51092e097dfe7d4 Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Fri, 25 Jul 2008 17:14:14 +0100
Subject: [PATCH] add a power-supply bool property so we can tell if the device
 is a supplier or consumer

---
 src/devkit-power-source.c                      | 14 ++++++++++++++
 src/org.freedesktop.DeviceKit.Power.Source.xml |  8 ++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/devkit-power-source.c b/src/devkit-power-source.c
index d6b9412..c94e632 100644
--- a/src/devkit-power-source.c
+++ b/src/devkit-power-source.c
@@ -64,6 +64,7 @@ struct DevkitPowerSourcePrivate
         DevkitPowerType type;
         gboolean has_coldplug_values;
 
+        gboolean power_supply;
         gboolean line_power_online;
         gboolean battery_is_present;
         gboolean battery_is_rechargeable;
@@ -98,6 +99,7 @@ enum
         PROP_UPDATE_TIME,
         PROP_TYPE,
         PROP_LINE_POWER_ONLINE,
+        PROP_POWER_SUPPLY,
         PROP_BATTERY_CAPACITY,
         PROP_BATTERY_IS_PRESENT,
         PROP_BATTERY_IS_RECHARGEABLE,
@@ -158,6 +160,10 @@ get_property (GObject         *object,
                 g_value_set_string (value, devkit_power_convert_type_to_text (source->priv->type));
                 break;
 
+        case PROP_POWER_SUPPLY:
+                g_value_set_boolean (value, source->priv->power_supply);
+                break;
+
         case PROP_LINE_POWER_ONLINE:
                 g_value_set_boolean (value, source->priv->line_power_online);
                 break;
@@ -261,6 +267,10 @@ devkit_power_source_class_init (DevkitPowerSourceClass *klass)
                 object_class,
                 PROP_TYPE,
                 g_param_spec_string ("type", NULL, NULL, NULL, G_PARAM_READABLE));
+        g_object_class_install_property (
+                object_class,
+                PROP_BATTERY_IS_PRESENT,
+                g_param_spec_boolean ("power-supply", NULL, NULL, FALSE, G_PARAM_READABLE));
         g_object_class_install_property (
                 object_class,
                 PROP_LINE_POWER_ONLINE,
@@ -527,6 +537,7 @@ devkit_power_source_reset_values (DevkitPowerSource *source)
         source->priv->serial = NULL;
         source->priv->line_power_online = FALSE;
         source->priv->battery_is_present = FALSE;
+        source->priv->power_supply = FALSE;
         source->priv->battery_is_rechargeable = FALSE;
         source->priv->has_coldplug_values = FALSE;
 }
@@ -600,6 +611,9 @@ update_battery (DevkitPowerSource *source)
         if (!source->priv->has_coldplug_values) {
                 char *technology_native;
 
+                /* when we add via sysfs power_supply class then we know this is true */
+                source->priv->power_supply = TRUE;
+
                 /* the ACPI spec is bad at defining battery type constants */
                 technology_native = g_strstrip (sysfs_get_string (source->priv->native_path, "technology"));
                 source->priv->battery_technology = devkit_power_convert_acpi_technology_to_enum (technology_native);
diff --git a/src/org.freedesktop.DeviceKit.Power.Source.xml b/src/org.freedesktop.DeviceKit.Power.Source.xml
index 5efbfda..f8e1594 100644
--- a/src/org.freedesktop.DeviceKit.Power.Source.xml
+++ b/src/org.freedesktop.DeviceKit.Power.Source.xml
@@ -97,6 +97,14 @@
       </doc:para></doc:description></doc:doc>
     </property>
 
+    <property name="power-supply" type="b" access="read">
+      <doc:doc><doc:description><doc:para>
+            If the power device is used to supply the system.
+            This would be set TRUE for laptop batteries and UPS devices,
+            but set FALSE for wireless mice or PDAs.
+          </doc:para></doc:description></doc:doc>
+    </property>
+
     <property name="line-power-online" type="b" access="read">
       <doc:doc><doc:description><doc:para>
             Whether power is currently being provided through line power.