From 18b25099865045a1e5bee99fa1629fee01c5f302 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Thu, 15 Aug 2013 20:10:08 +0200
Subject: Add DeviceKit power management backend to TDE hardware library

---
 CMakeLists.txt                        |  1 +
 tdecore/tdehw/CMakeLists.txt          |  6 +++-
 tdecore/tdehw/tderootsystemdevice.cpp | 67 +++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 57bc96fb9..0eaf6a052 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,6 +85,7 @@ OPTION( WITH_INOTIFY "Enable inotify support for tdeio" ON )
 OPTION( WITH_GAMIN "Enable FAM/GAMIN support" ${WITH_ALL_OPTIONS} )
 option( WITH_TDEHWLIB_DAEMONS "Enable daemons for TDE hwlib" ${WITH_ALL_OPTIONS} )
 option( WITH_HAL "Enable HAL support" OFF )
+option( WITH_DEVKITPOWER "Enable DeviceKit Power support" OFF )
 option( WITH_UPOWER "Enable uPower support" ${WITH_ALL_OPTIONS} )
 option( WITH_UDISKS "Enable uDisks support" ${WITH_ALL_OPTIONS} )
 option( WITH_UDISKS2 "Enable uDisks2 support" ${WITH_ALL_OPTIONS} )
diff --git a/tdecore/tdehw/CMakeLists.txt b/tdecore/tdehw/CMakeLists.txt
index a31d98146..553cd7032 100644
--- a/tdecore/tdehw/CMakeLists.txt
+++ b/tdecore/tdehw/CMakeLists.txt
@@ -17,7 +17,7 @@ if( NOT DBUS_SYSTEM_BUS )
   set( DBUS_SYSTEM_BUS "unix:path=/var/run/dbus/system_bus_socket" CACHE INTERNAL "" FORCE )
 endif()
 
-if( WITH_TDEHWLIB_DAEMONS OR WITH_HAL OR WITH_UPOWER OR WITH_UDISKS OR WITH_UDISKS2 OR
+if( WITH_TDEHWLIB_DAEMONS OR WITH_HAL OR WITH_DEVKITPOWER OR WITH_UPOWER OR WITH_UDISKS OR WITH_UDISKS2 OR
     WITH_NETWORK_MANAGER_BACKEND OR WITH_CONSOLEKIT )
   list( APPEND TDEHW_CUSTOM_INCLUDE_DIRS ${DBUS_TQT_INCLUDE_DIRS} )
   list( APPEND TDEHW_CUSTOM_LIBRARY_DIRS ${DBUS_TQT_LIBRARY_DIRS} )
@@ -32,6 +32,10 @@ if( WITH_HAL )
   add_definitions( -DWITH_HAL )
 endif( )
 
+if( WITH_DEVKITPOWER )
+  add_definitions( -DWITH_DEVKITPOWER )
+endif( )
+
 if( WITH_UPOWER )
   add_definitions( -DWITH_UPOWER )
 endif( )
diff --git a/tdecore/tdehw/tderootsystemdevice.cpp b/tdecore/tdehw/tderootsystemdevice.cpp
index 56cfe9f8f..422ff50de 100644
--- a/tdecore/tdehw/tderootsystemdevice.cpp
+++ b/tdecore/tdehw/tderootsystemdevice.cpp
@@ -142,6 +142,24 @@ bool TDERootSystemDevice::canSuspend() {
 	}
 #endif// WITH_UPOWER
 
+#ifdef WITH_DEVKITPOWER
+	{
+		TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
+		if (dbusConn.isConnected()) {
+			TQT_DBusProxy devkitpowerProperties("org.freedesktop.DeviceKit.Power", "/org/freedesktop/DeviceKit/Power", "org.freedesktop.DBus.Properties", dbusConn);
+			if (devkitpowerProperties.canSend()) {
+				// can suspend?
+				TQValueList<TQT_DBusData> params;
+				params << TQT_DBusData::fromString(devkitpowerProperties.interface()) << TQT_DBusData::fromString("CanSuspend");
+				TQT_DBusMessage reply = devkitpowerProperties.sendWithReply("Get", params);
+				if (reply.type() == TQT_DBusMessage::ReplyMessage && reply.count() == 1) {
+					return reply[0].toVariant().value.toBool();
+				}
+			}
+		}
+	}
+#endif// WITH_DEVKITPOWER
+
 #ifdef WITH_HAL
 	{
 		TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
@@ -201,6 +219,24 @@ bool TDERootSystemDevice::canHibernate() {
 	}
 #endif// WITH_UPOWER
 
+#ifdef WITH_DEVKITPOWER
+	{
+		TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
+		if (dbusConn.isConnected()) {
+			TQT_DBusProxy devkitpowerProperties("org.freedesktop.DeviceKit.Power", "/org/freedesktop/DeviceKit/Power", "org.freedesktop.DBus.Properties", dbusConn);
+			if (devkitpowerProperties.canSend()) {
+				// can hibernate?
+				TQValueList<TQT_DBusData> params;
+				params << TQT_DBusData::fromString(devkitpowerProperties.interface()) << TQT_DBusData::fromString("CanHibernate");
+				TQT_DBusMessage reply = devkitpowerProperties.sendWithReply("Get", params);
+				if (reply.type() == TQT_DBusMessage::ReplyMessage && reply.count() == 1) {
+					return reply[0].toVariant().value.toBool();
+				}
+			}
+		}
+	}
+#endif// WITH_DEVKITPOWER
+
 #ifdef WITH_HAL
 	{
 		TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
@@ -392,6 +428,37 @@ bool TDERootSystemDevice::setPowerState(TDESystemPowerState::TDESystemPowerState
 		}
 #endif // WITH_UPOWER
 
+#ifdef WITH_DEVKITPOWER
+		{
+			TQT_DBusConnection dbusConn;
+			dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
+			if ( dbusConn.isConnected() ) {
+				if (ps == TDESystemPowerState::Suspend) {
+					TQT_DBusMessage msg = TQT_DBusMessage::methodCall(
+								"org.freedesktop.DeviceKit.Power",
+								"/org/freedesktop/DeviceKit/Power",
+								"org.freedesktop.DeviceKit.Power",
+								"Suspend");
+					TQT_DBusMessage reply = dbusConn.sendWithReply(msg);
+					if (reply.type() == TQT_DBusMessage::ReplyMessage) {
+						return true;
+					}
+				}
+				else if (ps == TDESystemPowerState::Hibernate) {
+					TQT_DBusMessage msg = TQT_DBusMessage::methodCall(
+								"org.freedesktop.DeviceKit.Power",
+								"/org/freedesktop/DeviceKit/Power",
+								"org.freedesktop.DeviceKit.Power",
+								"Hibernate");
+					TQT_DBusMessage reply = dbusConn.sendWithReply(msg);
+					if (reply.type() == TQT_DBusMessage::ReplyMessage) {
+						return true;
+					}
+				}
+			}
+		}
+#endif // WITH_DEVKITPOWER
+
 #ifdef WITH_HAL
 		{
 			TQT_DBusConnection dbusConn;
-- 
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