WAI-ARIA button (#11380)

Accessibility functions for Button

Change-Id: I12ddfd8232d4d35135add1cb4406bfdc20b758f2

1 files changed, 30 insertions, 0 deletions

diff --git a/server/src/com/vaadin/ui/Button.java b/server/src/com/vaadin/ui/Button.java
index fcfc55aadc..1bcf802f12 100644
--- a/server/src/com/vaadin/ui/Button.java
+++ b/server/src/com/vaadin/ui/Button.java
@@ -32,6 +32,7 @@ import com.vaadin.event.ShortcutAction;
 import com.vaadin.event.ShortcutAction.KeyCode;
 import com.vaadin.event.ShortcutAction.ModifierKey;
 import com.vaadin.event.ShortcutListener;
+import com.vaadin.server.Resource;
 import com.vaadin.shared.MouseEventDetails;
 import com.vaadin.shared.ui.button.ButtonServerRpc;
 import com.vaadin.shared.ui.button.ButtonState;
@@ -581,6 +582,35 @@ public class Button extends AbstractComponent implements
     }
 
     /**
+     * Sets the component's icon and alt text.
+     * 
+     * An alt text is shown when an image could not be loaded, and read by
+     * assisitve devices.
+     * 
+     * @param icon
+     *            the icon to be shown with the component's caption.
+     * @param iconAltText
+     *            String to use as alt text
+     */
+    public void setIcon(Resource icon, String iconAltText) {
+        super.setIcon(icon);
+        getState().iconAltText = iconAltText == null ? "" : iconAltText;
+    }
+
+    /**
+     * Returns the icon's alt text.
+     * 
+     * @return String with the alt text
+     */
+    public String getIconAlternateText() {
+        return getState().iconAltText;
+    }
+
+    public void setIconAlternateText(String iconAltText) {
+        getState().iconAltText = iconAltText;
+    }
+
+    /**
      * Set whether the caption text is rendered as HTML or not. You might need
      * to retheme button to allow higher content than the original text style.
      *