1 files changed, 117 insertions, 0 deletions
diff --git a/bundles/org.eclipse.team.ui/src/org/eclipse/team/internal/ui/mapping/ResourceDragAdapterAssistant.java b/bundles/org.eclipse.team.ui/src/org/eclipse/team/internal/ui/mapping/ResourceDragAdapterAssistant.java
new file mode 100644
index 000000000..ffd6ae6b5
--- /dev/null
+++ b/bundles/org.eclipse.team.ui/src/org/eclipse/team/internal/ui/mapping/ResourceDragAdapterAssistant.java
@@ -0,0 +1,117 @@
+/*******************************************************************************
+ * Copyright (c) 2010, 2017 IBM Corporation 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:
+ *     IBM Corporation - initial API and implementation
+ *     Anton Leherbauer (Wind River Systems) - http://bugs.eclipse.org/247294
+ ******************************************************************************/
+package org.eclipse.team.internal.ui.mapping;
+
+import java.util.*;
+
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.*;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.dnd.*;
+import org.eclipse.team.internal.ui.Policy;
+import org.eclipse.ui.navigator.CommonDragAdapterAssistant;
+import org.eclipse.ui.part.ResourceTransfer;
+
+
+/**
+ * Drag adapter assistant used for the Common Navigator based viewer for use by a
+ * {@link ModelSynchronizePage}.
+ *
+ * @since 3.6
+ */
+public class ResourceDragAdapterAssistant extends CommonDragAdapterAssistant {
+
+	private static final Transfer[] SUPPORTED_TRANSFERS = new Transfer[] {
+			ResourceTransfer.getInstance(),
+			FileTransfer.getInstance() };
+
+	private static final Class<IResource> IRESOURCE_TYPE = IResource.class;
+
+	@Override
+	public Transfer[] getSupportedTransferTypes() {
+		return SUPPORTED_TRANSFERS;
+	}
+
+	@Override
+	public boolean setDragData(DragSourceEvent anEvent,
+			IStructuredSelection aSelection) {
+
+		IResource[] resources = getSelectedResources(aSelection);
+		if (resources.length > 0) {
+			if (ResourceTransfer.getInstance().isSupportedType(anEvent.dataType)) {
+				anEvent.data = resources;
+				if (Policy.DEBUG_DND) {
+					System.out
+							.println("ResourceDragAdapterAssistant.dragSetData set ResourceTransfer"); //$NON-NLS-1$
+				}
+				return true;
+			}
+
+			if (FileTransfer.getInstance().isSupportedType(anEvent.dataType)) {
+				// Get the path of each file and set as the drag data
+				final int length = resources.length;
+				int actualLength = 0;
+				String[] fileNames = new String[length];
+				for (int i = 0; i < length; i++) {
+					IPath location = resources[i].getLocation();
+					// location may be null. See bug 29491.
+					if (location != null) {
+						fileNames[actualLength++] = location.toOSString();
+					}
+				}
+				if (actualLength > 0) {
+					// was one or more of the locations null?
+					if (actualLength < length) {
+						String[] tempFileNames = fileNames;
+						fileNames = new String[actualLength];
+						for (int i = 0; i < actualLength; i++)
+							fileNames[i] = tempFileNames[i];
+					}
+					anEvent.data = fileNames;
+
+					if (Policy.DEBUG_DND)
+						System.out
+								.println("ResourceDragAdapterAssistant.dragSetData set FileTransfer"); //$NON-NLS-1$
+					return true;
+				}
+			}
+		}
+		return false;
+
+	}
+
+	private IResource[] getSelectedResources(IStructuredSelection aSelection) {
+		Set<IResource> resources = new LinkedHashSet<>();
+		IResource resource = null;
+		for (Iterator iter = aSelection.iterator(); iter.hasNext();) {
+			Object selected = iter.next();
+			resource = adaptToResource(selected);
+			if (resource != null) {
+				resources.add(resource);
+		}
+		}
+		return resources.toArray(new IResource[resources.size()]);
+	}
+
+	private IResource adaptToResource(Object selected) {
+		IResource resource;
+		if (selected instanceof IResource) {
+			resource = (IResource) selected;
+		} else if (selected instanceof IAdaptable) {
+			resource = ((IAdaptable) selected).getAdapter(IRESOURCE_TYPE);
+		} else {
+			resource = Platform.getAdapterManager().getAdapter(selected, IRESOURCE_TYPE);
+		}
+		return resource;
+	}
+
+}