Enables remap of NumpadKeys when Numlock is on and using evkeyboard.

Task-number: QTBUG-32823
Change-Id: I80841a965c61a117e8b50a2775431bb723ca8eca
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
index 72de73db7e..9c44283b0e 100644
--- a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
+++ b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler.cpp
@@ -408,6 +408,53 @@ QEvdevKeyboardHandler::KeycodeAction QEvdevKeyboardHandler::processKeycode(quint
 #ifdef QT_QPA_KEYMAP_DEBUG
             qWarning("Processing: uni=%04x, qt=%08x, qtmod=%08x", unicode, qtcode & ~modmask, (qtcode & modmask));
 #endif
+            //If NumLockOff and keypad key pressed remap event sent
+            if (!m_locks[1] &&
+                 (qtcode & Qt::KeypadModifier) &&
+                 keycode >= 71 &&
+                 keycode <= 83 &&
+                 keycode != 74 &&
+                 keycode != 78) {
+
+                unicode = 0xffff;
+                int oldMask = (qtcode & modmask);
+                switch (keycode) {
+                case 71: //7 --> Home
+                    qtcode = Qt::Key_Home;
+                    break;
+                case 72: //8 --> Up
+                    qtcode = Qt::Key_Up;
+                    break;
+                case 73: //9 --> PgUp
+                    qtcode = Qt::Key_PageUp;
+                    break;
+                case 75: //4 --> Left
+                    qtcode = Qt::Key_Left;
+                    break;
+                case 76: //5 --> Clear
+                    qtcode = Qt::Key_Clear;
+                    break;
+                case 77: //6 --> right
+                    qtcode = Qt::Key_Right;
+                    break;
+                case 79: //1 --> End
+                    qtcode = Qt::Key_End;
+                    break;
+                case 80: //2 --> Down
+                    qtcode = Qt::Key_Down;
+                    break;
+                case 81: //3 --> PgDn
+                    qtcode = Qt::Key_PageDown;
+                    break;
+                case 82: //0 --> Ins
+                    qtcode = Qt::Key_Insert;
+                    break;
+                case 83: //, --> Del
+                    qtcode = Qt::Key_Delete;
+                    break;
+                }
+                qtcode ^= oldMask;
+            }
 
             // send the result to the server
             processKeyEvent(keycode, unicode, qtcode & ~modmask, Qt::KeyboardModifiers(qtcode & modmask), pressed, autorepeat);
@@ -437,6 +484,29 @@ void QEvdevKeyboardHandler::unloadKeymap()
     memset(m_locks, 0, sizeof(m_locks));
     m_composing = 0;
     m_dead_unicode = 0xffff;
+
+    //Set locks according to keyboard leds
+    quint16 ledbits[1];
+    memset(ledbits, 0, sizeof(ledbits));
+    if (::ioctl(m_fd, EVIOCGLED(sizeof(ledbits)), ledbits) < 0) {
+        qWarning("Failed to query led states. Settings numlock & capslock off");
+        switchLed(LED_NUML,false);
+        switchLed(LED_CAPSL, false);
+        switchLed(LED_SCROLLL,false);
+    } else {
+        //Capslock
+        if ((ledbits[0]&0x02) > 0)
+            m_locks[0] = 1;
+        //Numlock
+        if ((ledbits[0]&0x01) > 0)
+            m_locks[1] = 1;
+        //Scrollock
+        if ((ledbits[0]&0x04) > 0)
+            m_locks[2] = 1;
+#ifdef QT_QPA_KEYMAP_DEBUG
+        qWarning("numlock=%d , capslock=%d, scrolllock=%d",m_locks[1],m_locks[0],m_locks[2]);
+#endif
+    }
 }
 
 bool QEvdevKeyboardHandler::loadKeymap(const QString &file)