Tooltip accessibility fixes (#11799)

Remove previously added attribute for WAI-ARIA live area
Set overlay container as live area instead 

Change-Id: Ie75c2993fdb42f29f307cbd294ae3352d2ef1ce3

1 files changed, 24 insertions, 0 deletions

diff --git a/server/src/com/vaadin/ui/UI.java b/server/src/com/vaadin/ui/UI.java
index 2e9570fa09..e077b003b8 100644
--- a/server/src/com/vaadin/ui/UI.java
+++ b/server/src/com/vaadin/ui/UI.java
@@ -1333,4 +1333,28 @@ public abstract class UI extends AbstractSingleComponentContainer implements
         getState().pushMode = pushMode;
     }
 
+    /**
+     * Get the label that is added to the container element, where tooltip,
+     * notification and dialogs are added to.
+     * 
+     * @return the label of the container
+     */
+    public String getOverlayContainerLabel() {
+        return getState().overlayContainerLabel;
+    }
+
+    /**
+     * Sets the label that is added to the container element, where tooltip,
+     * notifications and dialogs are added to.
+     * <p>
+     * This is helpful for users of assistive devices, as this element is
+     * reachable for them.
+     * </p>
+     * 
+     * @param overlayContainerLabel
+     *            label to use for the container
+     */
+    public void setOverlayContainerLabel(String overlayContainerLabel) {
+        getState().overlayContainerLabel = overlayContainerLabel;
+    }
 }