Consider a discharging UPS as "on battery"

Implement get_{on,low}_battery() methods on HID devices for Linux. This will
treat discharging UPSes like batteries and set the "on-battery" and
"on-low-battery" properties accordingly.

This also fixes the test_ups_ac() case in the Linux integration tests.

1 files changed, 63 insertions, 0 deletions

diff --git a/src/linux/up-device-hid.c b/src/linux/up-device-hid.c
index 0172930..7f9f20e 100644
--- a/src/linux/up-device-hid.c
+++ b/src/linux/up-device-hid.c
@@ -435,6 +435,67 @@ out:
 }
 
 /**
+ * up_device_hid_get_on_battery:
+ **/
+static gboolean
+up_device_hid_get_on_battery (UpDevice *device, gboolean *on_battery)
+{
+	UpDeviceHid *hid = UP_DEVICE_HID (device);
+	UpDeviceKind type;
+	UpDeviceState state;
+	gboolean is_present;
+	g_return_val_if_fail (UP_IS_DEVICE_HID (hid), FALSE);
+	g_return_val_if_fail (on_battery != NULL, FALSE);
+
+	g_object_get (device,
+		      "type", &type,
+		      "state", &state,
+		      "is-present", &is_present,
+		      NULL);
+
+
+	if (type != UP_DEVICE_KIND_UPS)
+		return FALSE;
+	if (state == UP_DEVICE_STATE_UNKNOWN)
+		return FALSE;
+	if (!is_present)
+		return FALSE;
+
+	*on_battery = (state == UP_DEVICE_STATE_DISCHARGING);
+	return TRUE;
+}
+
+/**
+ * up_device_hid_get_low_battery:
+ **/
+static gboolean
+up_device_hid_get_low_battery (UpDevice *device, gboolean *low_battery)
+{
+	gboolean ret;
+	gboolean on_battery;
+	UpDeviceHid *hid = UP_DEVICE_HID (device);
+	gdouble percentage;
+
+	g_return_val_if_fail (UP_IS_DEVICE_HID (hid), FALSE);
+	g_return_val_if_fail (low_battery != NULL, FALSE);
+
+	/* reuse the common checks */
+	ret = up_device_hid_get_on_battery (device, &on_battery);
+	if (!ret)
+		return FALSE;
+
+	/* shortcut */
+	if (!on_battery) {
+		*low_battery = FALSE;
+		return TRUE;
+	}
+
+	g_object_get (device, "percentage", &percentage, NULL);
+	*low_battery = (percentage < 10.0f);
+	return TRUE;
+}
+
+/**
  * up_device_hid_init:
  **/
 static void
@@ -482,6 +543,8 @@ up_device_hid_class_init (UpDeviceHidClass *klass)
 
 	object_class->finalize = up_device_hid_finalize;
 	device_class->coldplug = up_device_hid_coldplug;
+	device_class->get_on_battery = up_device_hid_get_on_battery;
+	device_class->get_low_battery = up_device_hid_get_low_battery;
 	device_class->refresh = up_device_hid_refresh;
 
 	g_type_class_add_private (klass, sizeof (UpDeviceHidPrivate));