Unify input device hotplugging support for embedded

On embedded the mouse cursor will now appear and reappear regardless of
how the input handling code is loaded (via a generic plugin or compiled-in
to the platform plugin).

Instead of passing around QDeviceDiscovery instances that only works
when compiling-in the code into the platform plugin, introduce a new
internal central QInputDeviceManager. The single instance of this
provides a place to store any future input device related signals and
properties.

Also introduce mouse hotplugging support to linuxfb.

[ChangeLog][QtGui] The mouse cursor on Embedded Linux is now handling
hotplugging correctly with eglfs and linuxfb regardless of how the input
handling code is loaded (via a generic plugin or built in to the platform
plugin).

Change-Id: I147c1b04a193baf216598015264f2c06e1b20f84
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/platformsupport/input/libinput/qlibinputhandler_p.h b/src/platformsupport/input/libinput/qlibinputhandler_p.h
index a1cfaca3ce..6d376c4ca3 100644
--- a/src/platformsupport/input/libinput/qlibinputhandler_p.h
+++ b/src/platformsupport/input/libinput/qlibinputhandler_p.h
@@ -36,6 +36,7 @@
 
 #include <QtCore/QObject>
 #include <QtCore/QScopedPointer>
+#include <QtCore/QMap>
 
 //
 //  W A R N I N G
@@ -84,6 +85,7 @@ private:
     QScopedPointer<QLibInputPointer> m_pointer;
     QScopedPointer<QLibInputKeyboard> m_keyboard;
     QScopedPointer<QLibInputTouch> m_touch;
+    QMap<int, int> m_devCount;
 };
 
 QT_END_NAMESPACE