Skip to main content
aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.ui/src/org/eclipse/net4j/buddies/internal/ui/views/BuddiesDragListener.java')
-rw-r--r--plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.ui/src/org/eclipse/net4j/buddies/internal/ui/views/BuddiesDragListener.java64
1 files changed, 64 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.ui/src/org/eclipse/net4j/buddies/internal/ui/views/BuddiesDragListener.java b/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.ui/src/org/eclipse/net4j/buddies/internal/ui/views/BuddiesDragListener.java
new file mode 100644
index 0000000000..ff47beca18
--- /dev/null
+++ b/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.ui/src/org/eclipse/net4j/buddies/internal/ui/views/BuddiesDragListener.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Eike Stepper - initial API and implementation
+ */
+package org.eclipse.net4j.buddies.internal.ui.views;
+
+import org.eclipse.net4j.buddies.common.IBuddy;
+import org.eclipse.net4j.buddies.internal.ui.dnd.BuddiesTransfer;
+import org.eclipse.net4j.util.ui.dnd.DNDDragListener;
+
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.StructuredViewer;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.Transfer;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+/**
+ * @author Eike Stepper
+ */
+public class BuddiesDragListener extends DNDDragListener<IBuddy[]>
+{
+ private static final Transfer[] TRANSFERS = new Transfer[] { BuddiesTransfer.INSTANCE };
+
+ protected BuddiesDragListener(StructuredViewer viewer)
+ {
+ super(TRANSFERS, viewer);
+ }
+
+ @Override
+ protected IBuddy[] getObject(IStructuredSelection selection)
+ {
+ Collection<IBuddy> buddies = new ArrayList<IBuddy>();
+ for (Iterator<?> it = selection.iterator(); it.hasNext();)
+ {
+ Object element = it.next();
+ if (element instanceof IBuddy)
+ {
+ IBuddy buddy = (IBuddy)element;
+ buddies.add(buddy);
+ }
+ }
+
+ if (buddies.isEmpty())
+ {
+ return null;
+ }
+
+ return buddies.toArray(new IBuddy[buddies.size()]);
+ }
+
+ public static void support(StructuredViewer viewer)
+ {
+ viewer.addDragSupport(DND.DROP_MOVE, TRANSFERS, new BuddiesDragListener(viewer));
+ }
+}

Back to the top