From 3a9adcac9139ec46d930fc97cf2fd8eb9afac8a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Wed, 15 Apr 2015 17:54:32 +0200
Subject: [PATCH] Connect to Logind's PauseDevice signal

If it emits a "pause" signal, we must acknowledge that we paused the
device.
---
 logind.cpp | 13 +++++++++++++
 logind.h   |  1 +
 2 files changed, 14 insertions(+)

diff --git a/logind.cpp b/logind.cpp
index 0a2c356ac0..22a86cdfce 100644
--- a/logind.cpp
+++ b/logind.cpp
@@ -237,6 +237,9 @@ void LogindIntegration::takeControl()
             qCDebug(KWIN_CORE) << "Gained session control";
             m_sessionControl = true;
             emit hasSessionControlChanged(true);
+            m_bus.connect(s_login1Service, m_sessionPath,
+                          s_login1SessionInterface, QStringLiteral("PauseDevice"),
+                          this, SLOT(pauseDevice(uint,uint,QString)));
         }
     );
 }
@@ -292,4 +295,14 @@ void LogindIntegration::releaseDevice(int fd)
     m_bus.asyncCall(message);
 }
 
+void LogindIntegration::pauseDevice(uint devMajor, uint devMinor, const QString &type)
+{
+    if (QString::compare(type, QStringLiteral("pause"), Qt::CaseInsensitive) == 0) {
+        // unconditionally call complete
+        QDBusMessage message = QDBusMessage::createMethodCall(s_login1Service, m_sessionPath, s_login1SessionInterface, QStringLiteral("PauseDeviceComplete"));
+        message.setArguments(QVariantList({QVariant(devMajor), QVariant(devMinor)}));
+        m_bus.asyncCall(message);
+    }
+}
+
 } // namespace
diff --git a/logind.h b/logind.h
index 7165990938..9a3f4563a8 100644
--- a/logind.h
+++ b/logind.h
@@ -64,6 +64,7 @@ Q_SIGNALS:
 private Q_SLOTS:
     void getSessionActive();
     void getVirtualTerminal();
+    void pauseDevice(uint major, uint minor, const QString &type);
 
 private:
     friend class LogindTest;