Moved server files to a server src folder (#9299)

1 files changed, 67 insertions, 0 deletions

diff --git a/server/src/com/vaadin/event/dd/acceptcriteria/SourceIs.java b/server/src/com/vaadin/event/dd/acceptcriteria/SourceIs.java
new file mode 100644
index 0000000000..d4fd20c952
--- /dev/null
+++ b/server/src/com/vaadin/event/dd/acceptcriteria/SourceIs.java
@@ -0,0 +1,67 @@
+/*
+@VaadinApache2LicenseForJavaFiles@
+ */
+/**
+ * 
+ */
+package com.vaadin.event.dd.acceptcriteria;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import com.vaadin.event.TransferableImpl;
+import com.vaadin.event.dd.DragAndDropEvent;
+import com.vaadin.terminal.PaintException;
+import com.vaadin.terminal.PaintTarget;
+import com.vaadin.ui.Component;
+
+/**
+ * Client side criteria that checks if the drag source is one of the given
+ * components.
+ * 
+ * @since 6.3
+ */
+@SuppressWarnings("serial")
+public class SourceIs extends ClientSideCriterion {
+
+    private Component[] components;
+
+    public SourceIs(Component... component) {
+        components = component;
+    }
+
+    @Override
+    public void paintContent(PaintTarget target) throws PaintException {
+        super.paintContent(target);
+        int paintedComponents = 0;
+        for (int i = 0; i < components.length; i++) {
+            Component c = components[i];
+            if (c.getApplication() != null) {
+                target.addAttribute("component" + paintedComponents++, c);
+            } else {
+                Logger.getLogger(SourceIs.class.getName())
+                        .log(Level.WARNING,
+                                "SourceIs component {0} at index {1} is not attached to the component hierachy and will thus be ignored",
+                                new Object[] { c.getClass().getName(),
+                                        Integer.valueOf(i) });
+            }
+        }
+        target.addAttribute("c", paintedComponents);
+    }
+
+    @Override
+    public boolean accept(DragAndDropEvent dragEvent) {
+        if (dragEvent.getTransferable() instanceof TransferableImpl) {
+            Component sourceComponent = ((TransferableImpl) dragEvent
+                    .getTransferable()).getSourceComponent();
+            for (Component c : components) {
+                if (c == sourceComponent) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+}
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