| /******************************************************************************* |
| * Copyright (c) 2006 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 |
| ******************************************************************************/ |
| |
| package org.eclipse.ui.internal.navigator.extensions; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.ui.internal.navigator.NavigatorPlugin; |
| import org.eclipse.ui.navigator.CommonDragAdapterAssistant; |
| |
| /** |
| * |
| * Drag assistants allow clients to provide new TransferTypes to a particular |
| * viewer. |
| * |
| * @since 3.2 |
| * |
| */ |
| public final class CommonDragAssistantDescriptor implements IViewerExtPtConstants { |
| |
| private IConfigurationElement element; |
| |
| |
| /* package */ CommonDragAssistantDescriptor(IConfigurationElement aConfigElement) { |
| element = aConfigElement; |
| } |
| |
| /** |
| * Create an instance of the {@link CommonDragAdapterAssistant} defined by |
| * this descriptor. |
| * |
| * @return an instance of the {@link CommonDragAdapterAssistant} or |
| * {@link SkeletonCommonDragAssistant} if a problem occurs with the |
| * instantiation. |
| */ |
| public CommonDragAdapterAssistant createDragAssistant() { |
| |
| try { |
| return (CommonDragAdapterAssistant) element |
| .createExecutableExtension(ATT_CLASS); |
| } catch (CoreException e) { |
| NavigatorPlugin.logError(0, e.getMessage(), e); |
| } catch (RuntimeException re) { |
| NavigatorPlugin.logError(0, re.getMessage(), re); |
| } |
| return SkeletonCommonDragAssistant.INSTANCE; |
| |
| } |
| |
| } |