1 files changed, 114 insertions, 0 deletions
diff --git a/plugins/org.eclipse.osee.doors.connector.ui/src/org/eclipse/osee/doors/connector/ui/viewer/RdfExplorerDragAndDrop.java b/plugins/org.eclipse.osee.doors.connector.ui/src/org/eclipse/osee/doors/connector/ui/viewer/RdfExplorerDragAndDrop.java
new file mode 100644
index 00000000000..2c9080372d1
--- /dev/null
+++ b/plugins/org.eclipse.osee.doors.connector.ui/src/org/eclipse/osee/doors/connector/ui/viewer/RdfExplorerDragAndDrop.java
@@ -0,0 +1,114 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2007 Boeing.
+ * 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:
+ *     Boeing - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.osee.doors.connector.ui.viewer;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.codehaus.jackson.map.ObjectMapper;
+import org.eclipse.osee.doors.connector.core.Requirement;
+import org.eclipse.osee.framework.core.enums.CoreArtifactTypes;
+import org.eclipse.osee.framework.core.enums.CoreAttributeTypes;
+import org.eclipse.osee.framework.skynet.core.utility.JsonArtifactRepresentation;
+import org.eclipse.osee.framework.skynet.core.utility.JsonAttributeRepresentation;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DragSource;
+import org.eclipse.swt.dnd.DragSourceEvent;
+import org.eclipse.swt.dnd.DragSourceListener;
+import org.eclipse.swt.dnd.DropTargetEvent;
+import org.eclipse.swt.dnd.TextTransfer;
+import org.eclipse.swt.dnd.Transfer;
+import org.eclipse.swt.widgets.Control;
+
+/**
+ * @author David W. Miller
+ */
+public class RdfExplorerDragAndDrop {
+   private DragSource dragSource;
+
+   private final List<Requirement> reqs = new ArrayList<Requirement>();
+
+   public RdfExplorerDragAndDrop(Control source) {
+
+      if (source != null) {
+         dragSource = new DragSource(source, DND.DROP_MOVE | DND.DROP_COPY);
+         setupDragSupport();
+      }
+   }
+
+   private void setupDragSupport() {
+      dragSource.setTransfer(new Transfer[] {TextTransfer.getInstance()});
+      dragSource.addDragListener(new DragSourceListener() {
+
+         @Override
+         public void dragFinished(DragSourceEvent event) {
+            // do nothing
+         }
+
+         @Override
+         public void dragSetData(DragSourceEvent event) {
+            performDataTransafer(event);
+         }
+
+         @Override
+         public void dragStart(DragSourceEvent event) {
+            // do nothing
+         }
+      });
+   }
+
+   private void performDataTransafer(DragSourceEvent event) {
+      if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
+         textTransferDragSetData(event);
+      }
+   }
+
+   public void textTransferDragSetData(DragSourceEvent event) {
+      List<JsonArtifactRepresentation> reqsOut = new ArrayList<JsonArtifactRepresentation>();
+      for (Requirement reqt : reqs) {
+         reqsOut.add(makeJsonArtifactRepresentation(reqt));
+      }
+
+      ObjectMapper mapper = new ObjectMapper();
+      try {
+         event.data = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(reqsOut);
+      } catch (IOException ex) {
+         //
+      }
+   }
+
+   private JsonArtifactRepresentation makeJsonArtifactRepresentation(Requirement reqt) {
+      JsonArtifactRepresentation artRep = new JsonArtifactRepresentation();
+      artRep.setArtifactTypeId(CoreArtifactTypes.Url.getId());
+      artRep.setName(reqt.getShortName());
+      List<JsonAttributeRepresentation> attrs = new ArrayList<JsonAttributeRepresentation>();
+      attrs.add(new JsonAttributeRepresentation(CoreAttributeTypes.Description.getId(), reqt.getName()));
+      attrs.add(new JsonAttributeRepresentation(CoreAttributeTypes.ContentUrl.getId(), reqt.getPath()));
+      artRep.setAttrs(attrs);
+      return artRep;
+   }
+
+   public void clearRequirements() {
+      if (reqs.size() > 0) {
+         reqs.clear();
+      }
+   }
+
+   public void addRequirement(Requirement req) {
+      reqs.add(req);
+   }
+
+   public void performDragOver(DropTargetEvent event) {
+      event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND;
+      event.detail = DND.DROP_NONE;
+   }
+
+}