Make SelectionChangeEvent general and move it to event packacge (#13334)

Change-Id: I232bf1d021dd95dfa3e9697cef4d8e9987da3373

server/src/com/vaadin/ui/components/grid/selection/SelectionChangeEvent.java → server/src/com/vaadin/event/SelectionChangeEvent.java

@@ -13,15 +13,15 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package com.vaadin.ui.components.grid.selection;
+package com.vaadin.event;
 
+import java.io.Serializable;
 import java.util.Collection;
 import java.util.EventObject;
 import java.util.LinkedHashSet;
 import java.util.Set;
 
 import com.google.gwt.thirdparty.guava.common.collect.Sets;
-import com.vaadin.ui.Grid;
 
 /**
  * An event that specifies what in a selection has changed, and where the
@@ -35,7 +35,7 @@ public class SelectionChangeEvent extends EventObject {
     private LinkedHashSet<Object> oldSelection;
     private LinkedHashSet<Object> newSelection;
 
-    public SelectionChangeEvent(Grid source, Collection<Object> oldSelection,
+    public SelectionChangeEvent(Object source, Collection<Object> oldSelection,
             Collection<Object> newSelection) {
         super(source);
         this.oldSelection = new LinkedHashSet<Object>(oldSelection);
@@ -66,8 +66,45 @@ public class SelectionChangeEvent extends EventObject {
         return Sets.difference(oldSelection, newSelection);
     }
 
-    @Override
-    public Grid getSource() {
-        return (Grid) super.getSource();
+    /**
+     * The listener interface for receiving {@link SelectionChangeEvent
+     * SelectionChangeEvents}.
+     * 
+     * @since
+     * @author Vaadin Ltd
+     */
+    public interface SelectionChangeListener extends Serializable {
+        /**
+         * Notifies the listener that the selection state has changed.
+         * 
+         * @param event
+         *            the selection change event
+         */
+        void selectionChange(SelectionChangeEvent event);
+    }
+
+    /**
+     * The interface for adding and removing listeners for
+     * {@link SelectionChangeEvent SelectionChangeEvents}.
+     * 
+     * @since
+     * @author Vaadin Ltd
+     */
+    public interface SelectionChangeNotifier extends Serializable {
+        /**
+         * Registers a new selection change listener
+         * 
+         * @param listener
+         *            the listener to register
+         */
+        void addSelectionChangeListener(SelectionChangeListener listener);
+
+        /**
+         * Removes a previously registered selection change listener
+         * 
+         * @param listener
+         *            the listener to remove
+         */
+        void removeSelectionChangeListener(SelectionChangeListener listener);
     }
 }

server/src/com/vaadin/ui/Grid.java

@@ -54,6 +54,9 @@ import com.vaadin.data.fieldgroup.FieldGroupFieldFactory;
 import com.vaadin.data.util.IndexedContainer;
 import com.vaadin.data.util.converter.Converter;
 import com.vaadin.data.util.converter.ConverterUtil;
+import com.vaadin.event.SelectionChangeEvent;
+import com.vaadin.event.SelectionChangeEvent.SelectionChangeListener;
+import com.vaadin.event.SelectionChangeEvent.SelectionChangeNotifier;
 import com.vaadin.server.AbstractClientConnector;
 import com.vaadin.server.AbstractExtension;
 import com.vaadin.server.ClientConnector;
@@ -80,9 +83,6 @@ import com.vaadin.shared.ui.grid.SortEventOriginator;
 import com.vaadin.shared.util.SharedUtil;
 import com.vaadin.ui.components.grid.SortOrderChangeEvent;
 import com.vaadin.ui.components.grid.SortOrderChangeListener;
-import com.vaadin.ui.components.grid.selection.SelectionChangeEvent;
-import com.vaadin.ui.components.grid.selection.SelectionChangeListener;
-import com.vaadin.ui.components.grid.selection.SelectionChangeNotifier;
 import com.vaadin.ui.components.grid.sort.Sort;
 import com.vaadin.ui.components.grid.sort.SortOrder;
 import com.vaadin.ui.renderer.Renderer;

server/src/com/vaadin/ui/components/grid/selection/SelectionChangeListener.java

@@ -1,35 +0,0 @@
-/*
- * Copyright 2000-2014 Vaadin Ltd.
- * 
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- * 
- * http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-package com.vaadin.ui.components.grid.selection;
-
-import java.io.Serializable;
-
-/**
- * The listener interface for receiving {@link SelectionChangeEvent
- * SelectionChangeEvents}.
- * 
- * @since
- * @author Vaadin Ltd
- */
-public interface SelectionChangeListener extends Serializable {
-    /**
-     * Notifies the listener that the selection state has changed.
-     * 
-     * @param event
-     *            the selection change event
-     */
-    void selectionChange(SelectionChangeEvent event);
-}

server/src/com/vaadin/ui/components/grid/selection/SelectionChangeNotifier.java

@@ -1,43 +0,0 @@
-/*
- * Copyright 2000-2014 Vaadin Ltd.
- * 
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- * 
- * http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-package com.vaadin.ui.components.grid.selection;
-
-import java.io.Serializable;
-
-/**
- * The interface for adding and removing listeners for
- * {@link SelectionChangeEvent SelectionChangeEvents}.
- * 
- * @since
- * @author Vaadin Ltd
- */
-public interface SelectionChangeNotifier extends Serializable {
-    /**
-     * Registers a new selection change listener
-     * 
-     * @param listener
-     *            the listener to register
-     */
-    void addSelectionChangeListener(SelectionChangeListener listener);
-
-    /**
-     * Removes a previously registered selection change listener
-     * 
-     * @param listener
-     *            the listener to remove
-     */
-    void removeSelectionChangeListener(SelectionChangeListener listener);
-}

server/tests/src/com/vaadin/tests/server/component/grid/GridSelection.java

@@ -25,11 +25,11 @@ import org.junit.Before;
 import org.junit.Test;
 
 import com.vaadin.data.util.IndexedContainer;
+import com.vaadin.event.SelectionChangeEvent;
+import com.vaadin.event.SelectionChangeEvent.SelectionChangeListener;
 import com.vaadin.ui.Grid;
 import com.vaadin.ui.Grid.SelectionMode;
 import com.vaadin.ui.Grid.SelectionModel;
-import com.vaadin.ui.components.grid.selection.SelectionChangeEvent;
-import com.vaadin.ui.components.grid.selection.SelectionChangeListener;
 
 public class GridSelection {
 

server/tests/src/com/vaadin/tests/server/component/grid/SingleSelectionModelTest.java

@@ -22,11 +22,11 @@ import org.junit.Test;
 
 import com.vaadin.data.Container;
 import com.vaadin.data.util.IndexedContainer;
+import com.vaadin.event.SelectionChangeEvent;
+import com.vaadin.event.SelectionChangeEvent.SelectionChangeListener;
 import com.vaadin.ui.Grid;
 import com.vaadin.ui.Grid.SelectionMode;
 import com.vaadin.ui.Grid.SingleSelectionModel;
-import com.vaadin.ui.components.grid.selection.SelectionChangeEvent;
-import com.vaadin.ui.components.grid.selection.SelectionChangeListener;
 
 public class SingleSelectionModelTest {