Compile in evdev code to linuxfb

Make it compatible with eglfs. The behavior is the same: By default
mouse, keyboard and touch will all be initialized and, when having
libudev support, discovered automatically. The environment variables
QT_QPA_FB_DISABLE_INPUT and QT_QPA_FB_TSLIB can be used to used to
disable the built-in input handlers and to force tslib instead of
evdev, respectively.

This allows embedded systems and applications to easily fall back
from eglfs to linuxfb on devices that are not rendering via OpenGL.

Dynamic hiding/showing of the mouse cursor is to be done separately,
here we provide the necessary device discovery hooks only.

[ChangeLog][QtGui] The linuxfb platform plugin's input device handling
is now compatible with eglfs. The evdev keyboard, mouse and touch code
is compiled in by default.

Change-Id: I44bc661c53ae78c39b0f30486a475b4e639ab2d6
Reviewed-by: Pasi Petäjäjärvi <pasi.petajajarvi@theqtcompany.com>
Reviewed-by: Gatis Paeglis <gatis.paeglis@digia.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/plugins/platforms/linuxfb/qlinuxfbintegration.h b/src/plugins/platforms/linuxfb/qlinuxfbintegration.h
index cabd943921..3e7e1c57f4 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbintegration.h
+++ b/src/plugins/platforms/linuxfb/qlinuxfbintegration.h
@@ -35,6 +35,7 @@
 #define QLINUXFBINTEGRATION_H
 
 #include <qpa/qplatformintegration.h>
+#include <qpa/qplatformnativeinterface.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -42,7 +43,7 @@ class QAbstractEventDispatcher;
 class QLinuxFbScreen;
 class QFbVtHandler;
 
-class QLinuxFbIntegration : public QPlatformIntegration
+class QLinuxFbIntegration : public QPlatformIntegration, public QPlatformNativeInterface
 {
 public:
     QLinuxFbIntegration(const QStringList &paramList);
@@ -63,6 +64,8 @@ public:
     QList<QPlatformScreen *> screens() const;
 
 private:
+    void createInputHandlers();
+
     QLinuxFbScreen *m_primaryScreen;
     QPlatformInputContext *m_inputContext;
     QScopedPointer<QPlatformFontDatabase> m_fontDb;