evdev*,libinput: use functor-based connections

This results in less boilerplate code, among other benefits that
come with functor-based connections. Simple expressions have been
converted to use lambda.

Change-Id: I6887980524027eada24beed95e6f9ba43f0fc8d5
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

4 files changed, 6 insertions, 7 deletions

diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchhandler.cpp b/src/platformsupport/input/evdevtouch/qevdevtouchhandler.cpp
index 8cce403b31..df2c079f24 100644
--- a/src/platformsupport/input/evdevtouch/qevdevtouchhandler.cpp
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchhandler.cpp
@@ -229,7 +229,7 @@ QEvdevTouchScreenHandler::QEvdevTouchScreenHandler(const QString &device, const
 
     if (m_fd >= 0) {
         m_notify = new QSocketNotifier(m_fd, QSocketNotifier::Read, this);
-        connect(m_notify, SIGNAL(activated(int)), this, SLOT(readData()));
+        connect(m_notify, &QSocketNotifier::activated, this, &QEvdevTouchScreenHandler::readData);
     } else {
         qErrnoWarning(errno, "evdevtouch: Cannot open input device %s", qPrintable(device));
         return;
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchhandler_p.h b/src/platformsupport/input/evdevtouch/qevdevtouchhandler_p.h
index d22aca3266..a0b689a89e 100644
--- a/src/platformsupport/input/evdevtouch/qevdevtouchhandler_p.h
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchhandler_p.h
@@ -82,7 +82,6 @@ public:
 
     bool isFiltered() const;
 
-private slots:
     void readData();
 
 signals:
@@ -116,7 +115,6 @@ public:
 
     bool eventFilter(QObject *object, QEvent *event) Q_DECL_OVERRIDE;
 
-public slots:
     void scheduleTouchPointUpdate();
 
 signals:
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp b/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp
index ab71d08fb1..4cacbf03e5 100644
--- a/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp
@@ -88,8 +88,11 @@ QEvdevTouchManager::QEvdevTouchManager(const QString &key, const QString &specif
             const QStringList devices = m_deviceDiscovery->scanConnectedDevices();
             for (const QString &device : devices)
                 addDevice(device);
-            connect(m_deviceDiscovery, SIGNAL(deviceDetected(QString)), this, SLOT(addDevice(QString)));
-            connect(m_deviceDiscovery, SIGNAL(deviceRemoved(QString)), this, SLOT(removeDevice(QString)));
+
+            connect(m_deviceDiscovery, &QDeviceDiscovery::deviceDetected,
+                    this, &QEvdevTouchManager::addDevice);
+            connect(m_deviceDiscovery, &QDeviceDiscovery::deviceRemoved,
+                    this, &QEvdevTouchManager::removeDevice);
         }
     }
 }
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h b/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
index 84e857ca57..e524c516f1 100644
--- a/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchmanager_p.h
@@ -62,12 +62,10 @@ class QEvdevTouchScreenHandlerThread;
 
 class QEvdevTouchManager : public QObject
 {
-    Q_OBJECT
 public:
     QEvdevTouchManager(const QString &key, const QString &spec, QObject *parent = 0);
     ~QEvdevTouchManager();
 
-private slots:
     void addDevice(const QString &deviceNode);
     void removeDevice(const QString &deviceNode);