From ec2ecdf0e79ee3c13f0e16192c8000930e525e8a Mon Sep 17 00:00:00 2001
From: Teemu Suo-Anttila <teemusa@vaadin.com>
Date: Tue, 26 Aug 2014 15:05:59 +0300
Subject: [PATCH] Remove type parameters from GridKeyEvents (#13334)

Change-Id: I8132c034ec378bae91574535f6f1b20591f46d1e
---
 .../src/com/vaadin/client/ui/grid/Grid.java   | 20 +++++-----
 .../AbstractGridKeyEventHandler.java          | 13 ++++---
 .../ui/grid/keyevents/BodyKeyDownHandler.java |  2 +-
 .../grid/keyevents/BodyKeyPressHandler.java   |  2 +-
 .../ui/grid/keyevents/BodyKeyUpHandler.java   |  2 +-
 .../grid/keyevents/FooterKeyDownHandler.java  |  2 +-
 .../grid/keyevents/FooterKeyPressHandler.java |  2 +-
 .../ui/grid/keyevents/FooterKeyUpHandler.java |  2 +-
 .../ui/grid/keyevents/GridKeyDownEvent.java   |  7 ++--
 .../ui/grid/keyevents/GridKeyPressEvent.java  |  8 ++--
 .../ui/grid/keyevents/GridKeyUpEvent.java     |  7 ++--
 .../grid/keyevents/HeaderKeyDownHandler.java  |  2 +-
 .../grid/keyevents/HeaderKeyPressHandler.java |  2 +-
 .../ui/grid/keyevents/HeaderKeyUpHandler.java |  2 +-
 .../selection/MultiSelectionRenderer.java     |  8 ++--
 .../grid/GridBasicClientFeaturesWidget.java   | 39 +++++++++----------
 16 files changed, 59 insertions(+), 61 deletions(-)

diff --git a/client/src/com/vaadin/client/ui/grid/Grid.java b/client/src/com/vaadin/client/ui/grid/Grid.java
index 70d8286c90..4efe42a825 100644
--- a/client/src/com/vaadin/client/ui/grid/Grid.java
+++ b/client/src/com/vaadin/client/ui/grid/Grid.java
@@ -124,7 +124,7 @@ import com.vaadin.shared.ui.grid.SortEventOriginator;
 public class Grid<T> extends Composite implements
         HasSelectionChangeHandlers<T>, SubPartAware {
 
-    public static abstract class AbstractGridKeyEvent<T, HANDLER extends AbstractGridKeyEventHandler>
+    public static abstract class AbstractGridKeyEvent<HANDLER extends AbstractGridKeyEventHandler>
             extends KeyCodeEvent<HANDLER> {
 
         /**
@@ -134,13 +134,13 @@ public class Grid<T> extends Composite implements
             HEADER, BODY, FOOTER
         }
 
-        private Grid<T> grid;
+        private Grid<?> grid;
         protected Cell activeCell;
         protected GridSection activeSection;
         private final Type<HANDLER> associatedType = new Type<HANDLER>(
                 getBrowserEventType(), this);
 
-        public AbstractGridKeyEvent(Grid<T> grid) {
+        public AbstractGridKeyEvent(Grid<?> grid) {
             this.grid = grid;
         }
 
@@ -151,7 +151,7 @@ public class Grid<T> extends Composite implements
          * 
          * @return grid
          */
-        public Grid<T> getGrid() {
+        public Grid<?> getGrid() {
             return grid;
         }
 
@@ -182,9 +182,9 @@ public class Grid<T> extends Composite implements
         }
     }
 
-    private GridKeyDownEvent<T> keyDown = new GridKeyDownEvent<T>(this);
-    private GridKeyUpEvent<T> keyUp = new GridKeyUpEvent<T>(this);
-    private GridKeyPressEvent<T> keyPress = new GridKeyPressEvent<T>(this);
+    private GridKeyDownEvent keyDown = new GridKeyDownEvent(this);
+    private GridKeyUpEvent keyUp = new GridKeyUpEvent(this);
+    private GridKeyPressEvent keyPress = new GridKeyPressEvent(this);
 
     private class ActiveCellHandler {
 
@@ -2475,7 +2475,7 @@ public class Grid<T> extends Composite implements
      *            the key handler to register
      * @return the registration for the event
      */
-    public <HANDLER extends GridKeyDownHandler<T>> HandlerRegistration addKeyDownHandler(
+    public <HANDLER extends GridKeyDownHandler> HandlerRegistration addKeyDownHandler(
             HANDLER handler) {
         if (handler instanceof BodyKeyDownHandler
                 || handler instanceof HeaderKeyDownHandler
@@ -2495,7 +2495,7 @@ public class Grid<T> extends Composite implements
      *            the key handler to register
      * @return the registration for the event
      */
-    public <HANDLER extends GridKeyUpHandler<T>> HandlerRegistration addKeyUpHandler(
+    public <HANDLER extends GridKeyUpHandler> HandlerRegistration addKeyUpHandler(
             HANDLER handler) {
         if (handler instanceof BodyKeyUpHandler
                 || handler instanceof HeaderKeyUpHandler
@@ -2515,7 +2515,7 @@ public class Grid<T> extends Composite implements
      *            the key handler to register
      * @return the registration for the event
      */
-    public <HANDLER extends GridKeyPressHandler<T>> HandlerRegistration addKeyPressHandler(
+    public <HANDLER extends GridKeyPressHandler> HandlerRegistration addKeyPressHandler(
             HANDLER handler) {
         if (handler instanceof BodyKeyPressHandler
                 || handler instanceof HeaderKeyPressHandler
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/AbstractGridKeyEventHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/AbstractGridKeyEventHandler.java
index 28a85924fa..57708e8bc9 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/AbstractGridKeyEventHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/AbstractGridKeyEventHandler.java
@@ -16,6 +16,7 @@
 package com.vaadin.client.ui.grid.keyevents;
 
 import com.google.gwt.event.shared.EventHandler;
+import com.vaadin.client.ui.grid.Grid.AbstractGridKeyEvent;
 
 /**
  * Base interface of all handlers for {@link AbstractGridKeyEvent}s.
@@ -25,19 +26,19 @@ import com.google.gwt.event.shared.EventHandler;
  */
 public abstract interface AbstractGridKeyEventHandler extends EventHandler {
 
-    public abstract interface GridKeyDownHandler<T> extends
+    public abstract interface GridKeyDownHandler extends
             AbstractGridKeyEventHandler {
-        public void onKeyDown(GridKeyDownEvent<T> event);
+        public void onKeyDown(GridKeyDownEvent event);
     }
 
-    public abstract interface GridKeyUpHandler<T> extends
+    public abstract interface GridKeyUpHandler extends
             AbstractGridKeyEventHandler {
-        public void onKeyUp(GridKeyUpEvent<T> event);
+        public void onKeyUp(GridKeyUpEvent event);
     }
 
-    public abstract interface GridKeyPressHandler<T> extends
+    public abstract interface GridKeyPressHandler extends
             AbstractGridKeyEventHandler {
-        public void onKeyPress(GridKeyPressEvent<T> event);
+        public void onKeyPress(GridKeyPressEvent event);
     }
 
 }
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyDownHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyDownHandler.java
index a3b76ea5d7..9e61624a28 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyDownHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyDownHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyDo
  * @since
  * @author Vaadin Ltd
  */
-public interface BodyKeyDownHandler<T> extends GridKeyDownHandler<T> {
+public interface BodyKeyDownHandler extends GridKeyDownHandler {
 }
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyPressHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyPressHandler.java
index 5548994cf9..f44c1d172e 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyPressHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyPressHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyPr
  * @since
  * @author Vaadin Ltd
  */
-public interface BodyKeyPressHandler<T> extends GridKeyPressHandler<T> {
+public interface BodyKeyPressHandler extends GridKeyPressHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyUpHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyUpHandler.java
index 33b4fc81fe..a6b3929d80 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyUpHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/BodyKeyUpHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyUp
  * @since
  * @author Vaadin Ltd
  */
-public interface BodyKeyUpHandler<T> extends GridKeyUpHandler<T> {
+public interface BodyKeyUpHandler extends GridKeyUpHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyDownHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyDownHandler.java
index e90f52e736..5e9fffdcda 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyDownHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyDownHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyDo
  * @since
  * @author Vaadin Ltd
  */
-public interface FooterKeyDownHandler<T> extends GridKeyDownHandler<T> {
+public interface FooterKeyDownHandler extends GridKeyDownHandler {
 }
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyPressHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyPressHandler.java
index 58f48f36f5..d5713d9135 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyPressHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyPressHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyPr
  * @since
  * @author Vaadin Ltd
  */
-public interface FooterKeyPressHandler<T> extends GridKeyPressHandler<T> {
+public interface FooterKeyPressHandler extends GridKeyPressHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyUpHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyUpHandler.java
index d6bcddf710..87978e1cd2 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyUpHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/FooterKeyUpHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyUp
  * @since
  * @author Vaadin Ltd
  */
-public interface FooterKeyUpHandler<T> extends GridKeyUpHandler<T> {
+public interface FooterKeyUpHandler extends GridKeyUpHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyDownEvent.java b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyDownEvent.java
index 8af65dbf49..65c8327eb6 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyDownEvent.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyDownEvent.java
@@ -26,15 +26,14 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyDo
  * @since
  * @author Vaadin Ltd
  */
-public class GridKeyDownEvent<T> extends
-        AbstractGridKeyEvent<T, GridKeyDownHandler<T>> {
+public class GridKeyDownEvent extends AbstractGridKeyEvent<GridKeyDownHandler> {
 
-    public GridKeyDownEvent(Grid<T> grid) {
+    public GridKeyDownEvent(Grid<?> grid) {
         super(grid);
     }
 
     @Override
-    protected void dispatch(GridKeyDownHandler<T> handler) {
+    protected void dispatch(GridKeyDownHandler handler) {
         super.dispatch(handler);
         if ((activeSection == GridSection.BODY && handler instanceof BodyKeyDownHandler)
                 || (activeSection == GridSection.HEADER && handler instanceof HeaderKeyDownHandler)
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyPressEvent.java b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyPressEvent.java
index 6f06bc6674..388467990b 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyPressEvent.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyPressEvent.java
@@ -26,15 +26,15 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyPr
  * @since
  * @author Vaadin Ltd
  */
-public class GridKeyPressEvent<T> extends
-        AbstractGridKeyEvent<T, GridKeyPressHandler<T>> {
+public class GridKeyPressEvent extends
+        AbstractGridKeyEvent<GridKeyPressHandler> {
 
-    public GridKeyPressEvent(Grid<T> grid) {
+    public GridKeyPressEvent(Grid<?> grid) {
         super(grid);
     }
 
     @Override
-    protected void dispatch(GridKeyPressHandler<T> handler) {
+    protected void dispatch(GridKeyPressHandler handler) {
         super.dispatch(handler);
         if ((activeSection == GridSection.BODY && handler instanceof BodyKeyPressHandler)
                 || (activeSection == GridSection.HEADER && handler instanceof HeaderKeyPressHandler)
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyUpEvent.java b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyUpEvent.java
index d289dbae98..dd1fb33e3f 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyUpEvent.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/GridKeyUpEvent.java
@@ -26,15 +26,14 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyUp
  * @since
  * @author Vaadin Ltd
  */
-public class GridKeyUpEvent<T> extends
-        AbstractGridKeyEvent<T, GridKeyUpHandler<T>> {
+public class GridKeyUpEvent extends AbstractGridKeyEvent<GridKeyUpHandler> {
 
-    public GridKeyUpEvent(Grid<T> grid) {
+    public GridKeyUpEvent(Grid<?> grid) {
         super(grid);
     }
 
     @Override
-    protected void dispatch(GridKeyUpHandler<T> handler) {
+    protected void dispatch(GridKeyUpHandler handler) {
         super.dispatch(handler);
         if ((activeSection == GridSection.BODY && handler instanceof BodyKeyUpHandler)
                 || (activeSection == GridSection.HEADER && handler instanceof HeaderKeyUpHandler)
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyDownHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyDownHandler.java
index 28c9a8e056..d8a1132a84 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyDownHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyDownHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyDo
  * @since
  * @author Vaadin Ltd
  */
-public interface HeaderKeyDownHandler<T> extends GridKeyDownHandler<T> {
+public interface HeaderKeyDownHandler extends GridKeyDownHandler {
 }
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyPressHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyPressHandler.java
index 607c30493d..a2245b1dfe 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyPressHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyPressHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyPr
  * @since
  * @author Vaadin Ltd
  */
-public interface HeaderKeyPressHandler<T> extends GridKeyPressHandler<T> {
+public interface HeaderKeyPressHandler extends GridKeyPressHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyUpHandler.java b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyUpHandler.java
index bfa3dde79b..405195ec94 100644
--- a/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyUpHandler.java
+++ b/client/src/com/vaadin/client/ui/grid/keyevents/HeaderKeyUpHandler.java
@@ -24,5 +24,5 @@ import com.vaadin.client.ui.grid.keyevents.AbstractGridKeyEventHandler.GridKeyUp
  * @since
  * @author Vaadin Ltd
  */
-public interface HeaderKeyUpHandler<T> extends GridKeyUpHandler<T> {
+public interface HeaderKeyUpHandler extends GridKeyUpHandler {
 }
\ No newline at end of file
diff --git a/client/src/com/vaadin/client/ui/grid/selection/MultiSelectionRenderer.java b/client/src/com/vaadin/client/ui/grid/selection/MultiSelectionRenderer.java
index a3030e3a1f..bfcc639a64 100644
--- a/client/src/com/vaadin/client/ui/grid/selection/MultiSelectionRenderer.java
+++ b/client/src/com/vaadin/client/ui/grid/selection/MultiSelectionRenderer.java
@@ -584,13 +584,13 @@ public class MultiSelectionRenderer<T> extends ComplexRenderer<Boolean> {
         }
     }
 
-    private class SpaceKeyDownSelectHandler implements BodyKeyDownHandler<T> {
+    private class SpaceKeyDownSelectHandler implements BodyKeyDownHandler {
 
         private HandlerRegistration scrollHandler = null;
         private boolean spaceDown = false;
 
         @Override
-        public void onKeyDown(GridKeyDownEvent<T> event) {
+        public void onKeyDown(GridKeyDownEvent event) {
             if (event.getNativeKeyCode() != KeyCodes.KEY_SPACE || spaceDown) {
                 return;
             }
@@ -634,10 +634,10 @@ public class MultiSelectionRenderer<T> extends ComplexRenderer<Boolean> {
     public MultiSelectionRenderer(final Grid<T> grid) {
         this.grid = grid;
         spaceDown = grid.addKeyDownHandler(handler);
-        spaceUp = grid.addKeyUpHandler(new BodyKeyUpHandler<T>() {
+        spaceUp = grid.addKeyUpHandler(new BodyKeyUpHandler() {
 
             @Override
-            public void onKeyUp(GridKeyUpEvent<T> event) {
+            public void onKeyUp(GridKeyUpEvent event) {
                 if (event.getNativeKeyCode() == KeyCodes.KEY_SPACE) {
                     handler.spaceDown = false;
                 }
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/grid/GridBasicClientFeaturesWidget.java b/uitest/src/com/vaadin/tests/widgetset/client/grid/GridBasicClientFeaturesWidget.java
index a7210236d4..1bdbd76a20 100644
--- a/uitest/src/com/vaadin/tests/widgetset/client/grid/GridBasicClientFeaturesWidget.java
+++ b/uitest/src/com/vaadin/tests/widgetset/client/grid/GridBasicClientFeaturesWidget.java
@@ -659,93 +659,92 @@ public class GridBasicClientFeaturesWidget extends
         }
 
         // Key Down Events
-        grid.addKeyDownHandler(new BodyKeyDownHandler<List<Data>>() {
+        grid.addKeyDownHandler(new BodyKeyDownHandler() {
             private final VLabel label = labels.get(0);
 
             @Override
-            public void onKeyDown(GridKeyDownEvent<List<Data>> event) {
+            public void onKeyDown(GridKeyDownEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyDownHandler(new HeaderKeyDownHandler<List<Data>>() {
+        grid.addKeyDownHandler(new HeaderKeyDownHandler() {
             private final VLabel label = labels.get(1);
 
             @Override
-            public void onKeyDown(GridKeyDownEvent<List<Data>> event) {
+            public void onKeyDown(GridKeyDownEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyDownHandler(new FooterKeyDownHandler<List<Data>>() {
+        grid.addKeyDownHandler(new FooterKeyDownHandler() {
             private final VLabel label = labels.get(2);
 
             @Override
-            public void onKeyDown(GridKeyDownEvent<List<Data>> event) {
+            public void onKeyDown(GridKeyDownEvent event) {
                 updateLabel(label, event);
             }
         });
 
         // Key Up Events
-        grid.addKeyUpHandler(new BodyKeyUpHandler<List<Data>>() {
+        grid.addKeyUpHandler(new BodyKeyUpHandler() {
             private final VLabel label = labels.get(3);
 
             @Override
-            public void onKeyUp(GridKeyUpEvent<List<Data>> event) {
+            public void onKeyUp(GridKeyUpEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyUpHandler(new HeaderKeyUpHandler<List<Data>>() {
+        grid.addKeyUpHandler(new HeaderKeyUpHandler() {
             private final VLabel label = labels.get(4);
 
             @Override
-            public void onKeyUp(GridKeyUpEvent<List<Data>> event) {
+            public void onKeyUp(GridKeyUpEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyUpHandler(new FooterKeyUpHandler<List<Data>>() {
+        grid.addKeyUpHandler(new FooterKeyUpHandler() {
             private final VLabel label = labels.get(5);
 
             @Override
-            public void onKeyUp(GridKeyUpEvent<List<Data>> event) {
+            public void onKeyUp(GridKeyUpEvent event) {
                 updateLabel(label, event);
             }
         });
 
         // Key Press Events
-        grid.addKeyPressHandler(new BodyKeyPressHandler<List<Data>>() {
+        grid.addKeyPressHandler(new BodyKeyPressHandler() {
             private final VLabel label = labels.get(6);
 
             @Override
-            public void onKeyPress(GridKeyPressEvent<List<Data>> event) {
+            public void onKeyPress(GridKeyPressEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyPressHandler(new HeaderKeyPressHandler<List<Data>>() {
+        grid.addKeyPressHandler(new HeaderKeyPressHandler() {
             private final VLabel label = labels.get(7);
 
             @Override
-            public void onKeyPress(GridKeyPressEvent<List<Data>> event) {
+            public void onKeyPress(GridKeyPressEvent event) {
                 updateLabel(label, event);
             }
         });
 
-        grid.addKeyPressHandler(new FooterKeyPressHandler<List<Data>>() {
+        grid.addKeyPressHandler(new FooterKeyPressHandler() {
             private final VLabel label = labels.get(8);
 
             @Override
-            public void onKeyPress(GridKeyPressEvent<List<Data>> event) {
+            public void onKeyPress(GridKeyPressEvent event) {
                 updateLabel(label, event);
             }
         });
 
     }
 
-    private void updateLabel(VLabel label,
-            AbstractGridKeyEvent<List<Data>, ?> event) {
+    private void updateLabel(VLabel label, AbstractGridKeyEvent<?> event) {
         String type = event.getNativeEvent().getType();
         Cell active = event.getActiveCell();
         String coords = "(" + active.getRow() + ", " + active.getColumn() + ")";
-- 
2.39.5