1 files changed, 73 insertions, 0 deletions
diff --git a/src/com/vaadin/event/dd/acceptcriteria/DropTargetDetailEquals.java b/src/com/vaadin/event/dd/acceptcriteria/DropTargetDetailEquals.java
new file mode 100644
index 0000000000..a2b24533b3
--- /dev/null
+++ b/src/com/vaadin/event/dd/acceptcriteria/DropTargetDetailEquals.java
@@ -0,0 +1,73 @@
+/*
+@ITMillApache2LicenseForJavaFiles@
+ */
+/**
+ * 
+ */
+package com.vaadin.event.dd.acceptCriteria;
+
+import com.vaadin.event.dd.DragAndDropEvent;
+import com.vaadin.event.dd.DropTargetDetails;
+import com.vaadin.terminal.PaintException;
+import com.vaadin.terminal.PaintTarget;
+import com.vaadin.terminal.gwt.client.ui.dd.VDropDetailEquals;
+
+/**
+ * Criterion for checking if drop target details contains the specific property
+ * with the specific value. Currently only String values are supported.
+ * 
+ * @since 6.3
+ * 
+ *        TODO add support for other basic data types that we support in UIDL.
+ * 
+ */
+@ClientCriterion(VDropDetailEquals.class)
+public class DropTargetDetailEquals extends ClientSideCriterion {
+
+    private static final long serialVersionUID = 763165450054331246L;
+    private String propertyName;
+    private Object value;
+
+    /**
+     * Constructs a criterion which ensures that the value there is a value in
+     * {@link DropTargetDetails} that equals the reference value.
+     * 
+     * @param dataFlavor
+     *            the type of data to be checked
+     * @param value
+     *            the reference value to which the drop target detail will be
+     *            compared
+     */
+    public DropTargetDetailEquals(String dataFlavor, String value) {
+        propertyName = dataFlavor;
+        this.value = value;
+    }
+
+    public DropTargetDetailEquals(String dataFlavor, Boolean true1) {
+        propertyName = dataFlavor;
+        value = true1;
+    }
+
+    @Override
+    public void paintContent(PaintTarget target) throws PaintException {
+        super.paintContent(target);
+        target.addAttribute("p", propertyName);
+        if (value instanceof Boolean) {
+            target.addAttribute("v", ((Boolean) value).booleanValue());
+            target.addAttribute("t", "b");
+        } else if (value instanceof String) {
+            target.addAttribute("v", (String) value);
+        }
+    }
+
+    public boolean accept(DragAndDropEvent dragEvent) {
+        Object data = dragEvent.getDropTargetDetails().getData(propertyName);
+        return value.equals(data);
+    }
+
+    @Override
+    protected String getIdentifier() {
+        // sub classes by default use VDropDetailEquals a client implementation
+        return DropTargetDetailEquals.class.getCanonicalName();
+    }
+}
+\ No newline at end of file