Add getSelected functionality to SelectionEvents (#15513)

Change-Id: If88af88b55063f7178b32579963303ee0d621492

2 files changed, 23 insertions, 4 deletions

diff --git a/client/src/com/vaadin/client/widget/grid/selection/SelectionEvent.java b/client/src/com/vaadin/client/widget/grid/selection/SelectionEvent.java
index 7796425612..528beb5809 100644
--- a/client/src/com/vaadin/client/widget/grid/selection/SelectionEvent.java
+++ b/client/src/com/vaadin/client/widget/grid/selection/SelectionEvent.java
@@ -105,7 +105,7 @@ public class SelectionEvent<T> extends GwtEvent<SelectionHandler> {
     }
 
     /**
-     * Get a reference to the Grid object that fired this event.
+     * Gets a reference to the Grid object that fired this event.
      * 
      * @return a grid reference
      */
@@ -115,8 +115,8 @@ public class SelectionEvent<T> extends GwtEvent<SelectionHandler> {
     }
 
     /**
-     * Get all rows added to the selection since the last {@link SelectionEvent}
-     * .
+     * Gets all rows added to the selection since the last
+     * {@link SelectionEvent} .
      * 
      * @return a collection of added rows. Empty collection if no rows were
      *         added.
@@ -126,7 +126,7 @@ public class SelectionEvent<T> extends GwtEvent<SelectionHandler> {
     }
 
     /**
-     * Get all rows removed from the selection since the last
+     * Gets all rows removed from the selection since the last
      * {@link SelectionEvent}.
      * 
      * @return a collection of removed rows. Empty collection if no rows were
@@ -137,6 +137,15 @@ public class SelectionEvent<T> extends GwtEvent<SelectionHandler> {
     }
 
     /**
+     * Gets currently selected rows.
+     * 
+     * @return a non-null collection containing all currently selected rows.
+     */
+    public Collection<T> getSelected() {
+        return grid.getSelectedRows();
+    }
+
+    /**
      * Gets a type identifier for this event.
      * 
      * @return a {@link Type} identifier.
diff --git a/server/src/com/vaadin/event/SelectionEvent.java b/server/src/com/vaadin/event/SelectionEvent.java
index b6ade2aa9c..e75369e6da 100644
--- a/server/src/com/vaadin/event/SelectionEvent.java
+++ b/server/src/com/vaadin/event/SelectionEvent.java
@@ -17,6 +17,7 @@ package com.vaadin.event;
 
 import java.io.Serializable;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.EventObject;
 import java.util.LinkedHashSet;
 import java.util.Set;
@@ -67,6 +68,15 @@ public class SelectionEvent extends EventObject {
     }
 
     /**
+     * A {@link Collection} of all the itemIds that are currently selected.
+     * 
+     * @return a Collection of the itemIds that are currently selected
+     */
+    public Set<Object> getSelected() {
+        return Collections.unmodifiableSet(newSelection);
+    }
+
+    /**
      * The listener interface for receiving {@link SelectionEvent
      * SelectionEvents}.
      */