| /******************************************************************************* |
| * Copyright (c) 2010, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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.LinkedHashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.dnd.DragSourceEvent; |
| import org.eclipse.swt.dnd.FileTransfer; |
| import org.eclipse.swt.dnd.Transfer; |
| 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]; |
| System.arraycopy(tempFileNames, 0, fileNames, 0, actualLength); |
| } |
| 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 (Object selected : aSelection) { |
| 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; |
| } |
| |
| } |