From 143f20692eefd972271df18d85023fca0378c226 Mon Sep 17 00:00:00 2001
From: Liang Qi <liang.qi@qt.io>
Date: Mon, 25 Oct 2021 15:21:27 +0200
Subject: gui: add QInputDevice::seatNames()

Change-Id: Ie6cedd62dcd684a8fd9adbc2409e5aa1f3490ede
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
---
 src/gui/kernel/qinputdevice.cpp | 19 +++++++++++++++++++
 src/gui/kernel/qinputdevice.h   |  1 +
 2 files changed, 20 insertions(+)

diff --git a/src/gui/kernel/qinputdevice.cpp b/src/gui/kernel/qinputdevice.cpp
index 4505a6b568..26975f478e 100644
--- a/src/gui/kernel/qinputdevice.cpp
+++ b/src/gui/kernel/qinputdevice.cpp
@@ -280,6 +280,25 @@ QList<const QInputDevice *> QInputDevice::devices()
     return *deviceList();
 }
 
+/*!
+    \since 6.3
+
+    Returns a list of seat names for all registered input devices (keyboards and pointing devices).
+*/
+QStringList QInputDevice::seatNames()
+{
+    QMutexLocker locker(&devicesMutex);
+    const InputDevicesList devices = *deviceList();
+    locker.unlock();
+    QStringList result;
+    for (const QInputDevice *d : devices) {
+        if (!result.contains(d->seatName()))
+            result.append(d->seatName());
+    }
+
+    return result;
+}
+
 /*!
     Returns the core or master keyboard on the given seat \a seatName.
 */
diff --git a/src/gui/kernel/qinputdevice.h b/src/gui/kernel/qinputdevice.h
index 206f783b4b..589bf344af 100644
--- a/src/gui/kernel/qinputdevice.h
+++ b/src/gui/kernel/qinputdevice.h
@@ -110,6 +110,7 @@ public:
     QString seatName() const;
     QRect availableVirtualGeometry() const;
 
+    static QStringList seatNames();
     static QList<const QInputDevice *> devices();
     static const QInputDevice *primaryKeyboard(const QString& seatName = QString());
 
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