Add item descriptions to Tree (#9840)

Fixes #9803

1 files changed, 25 insertions, 0 deletions

diff --git a/server/src/main/java/com/vaadin/ui/Tree.java b/server/src/main/java/com/vaadin/ui/Tree.java
index aeb2dcfb6d..77d7d2300a 100644
--- a/server/src/main/java/com/vaadin/ui/Tree.java
+++ b/server/src/main/java/com/vaadin/ui/Tree.java
@@ -49,6 +49,7 @@ import com.vaadin.shared.ui.grid.HeightMode;
 import com.vaadin.shared.ui.tree.TreeMultiSelectionModelState;
 import com.vaadin.shared.ui.tree.TreeRendererState;
 import com.vaadin.ui.Grid.SelectionMode;
+import com.vaadin.ui.components.grid.DescriptionGenerator;
 import com.vaadin.ui.components.grid.MultiSelectionModelImpl;
 import com.vaadin.ui.renderers.AbstractRenderer;
 import com.vaadin.util.ReflectTools;
@@ -596,6 +597,20 @@ public class Tree<T> extends Composite
     }
 
     /**
+     * Sets the description generator that is used for generating tooltip
+     * descriptions for items.
+     * 
+     * @since
+     * @param descriptionGenerator
+     *            the item description generator to set, or <code>null</code> to
+     *            remove a previously set generator
+     */
+    public void setItemDescriptionGenerator(
+            DescriptionGenerator<T> descriptionGenerator) {
+        treeGrid.setDescriptionGenerator(descriptionGenerator);
+    }
+
+    /**
      * Gets the item caption generator.
      *
      * @return the item caption generator
@@ -636,6 +651,16 @@ public class Tree<T> extends Composite
     }
 
     /**
+     * Gets the item description generator.
+     *
+     * @since
+     * @return the item description generator
+     */
+    public DescriptionGenerator<T> getItemDescriptionGenerator() {
+        return treeGrid.getDescriptionGenerator();
+    }
+
+    /**
      * Adds an item click listener. The listener is called when an item of this
      * {@code Tree} is clicked.
      *