still listen to key press events when focus on Thumbnails view

src/gui/UBDocumentNavigator.cpp

@@ -39,6 +39,7 @@
 #include "core/UBApplication.h"
 #include "UBDocumentNavigator.h"
 #include "board/UBBoardController.h"
+#include "board/UBBoardView.h"
 #include "adaptors/UBThumbnailAdaptor.h"
 #include "adaptors/UBSvgSubsetAdaptor.h"
 #include "document/UBDocumentController.h"
@@ -354,6 +355,120 @@ void UBDocumentNavigator::mouseReleaseEvent(QMouseEvent *event)
     mLongPressTimer.stop();
 }
 
+
+void UBDocumentNavigator::keyPressEvent(QKeyEvent *event)
+{
+    return;
+    UBBoardController* controller = UBApplication::boardController;
+    // send to the scene anyway
+    QApplication::sendEvent (scene (), event);
+
+    if (!event->isAccepted ())
+    {
+        switch (event->key ())
+        {
+        case Qt::Key_Up:
+        case Qt::Key_PageUp:
+        case Qt::Key_Left:
+        {
+            controller->previousScene ();
+            break;
+        }
+
+        case Qt::Key_Down:
+        case Qt::Key_PageDown:
+        case Qt::Key_Right:
+        case Qt::Key_Space:
+        {
+            controller->nextScene ();
+            break;
+        }
+
+        case Qt::Key_Home:
+        {
+            controller->firstScene ();
+            break;
+        }
+        case Qt::Key_End:
+        {
+            controller->lastScene ();
+            break;
+        }
+        case Qt::Key_Insert:
+        {
+            controller->addScene ();
+            break;
+        }
+        case Qt::Key_Control:
+        case Qt::Key_Shift:
+        {
+            controller->controlView()->setMultiselection(true);
+        }break;
+        }
+
+
+        if (event->modifiers () & Qt::ControlModifier) // keep only ctrl/cmd keys
+        {
+            switch (event->key ())
+            {
+            case Qt::Key_Plus:
+            case Qt::Key_I:
+            {
+                controller->zoomIn ();
+                event->accept ();
+                break;
+            }
+            case Qt::Key_Minus:
+            case Qt::Key_O:
+            {
+                controller->zoomOut ();
+                event->accept ();
+                break;
+            }
+            case Qt::Key_0:
+            {
+                controller->zoomRestore ();
+                event->accept ();
+                break;
+            }
+            case Qt::Key_Left:
+            {
+                controller->handScroll (-100, 0);
+                event->accept ();
+                break;
+            }
+            case Qt::Key_Right:
+            {
+                controller->handScroll (100, 0);
+                event->accept ();
+                break;
+            }
+            case Qt::Key_Up:
+            {
+                controller->handScroll (0, -100);
+                event->accept ();
+                break;
+            }
+            case Qt::Key_Down:
+            {
+                controller->handScroll (0, 100);
+                event->accept ();
+                break;
+            }
+            default:
+            {
+                // NOOP
+            }
+            }
+        }
+    }
+
+    // if ctrl of shift was pressed combined with other keys - we need to disable multiple selection.
+    if (event->isAccepted())
+        controller->controlView()->setMultiselection(false);
+}
+
+
 void UBDocumentNavigator::longPressTimeout()
 {
     if (QApplication::mouseButtons() != Qt::NoButton)

src/gui/UBDocumentNavigator.h

@@ -72,6 +72,8 @@ protected:
     virtual void dragMoveEvent(QDragMoveEvent* event);
     virtual void dropEvent(QDropEvent* event);
 
+    virtual void keyPressEvent(QKeyEvent *event);
+
 signals:
     void mousePressAndHoldEventRequired();
     void moveThumbnailRequired(int from, int to);