| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.ui.actions; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IWorkspaceRunnable; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.SubProgressMonitor; |
| |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.jdt.core.IClasspathEntry; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.util.JavaModelUtil; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| import org.eclipse.jdt.internal.ui.actions.ActionMessages; |
| |
| /** |
| * Action to remove package fragment roots from the classpath of its parent |
| * project. Currently, the action is applicable to selections containing |
| * non-external archives (JAR or zip). |
| * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 2.1 |
| */ |
| public class RemoveFromClasspathAction extends SelectionDispatchAction { |
| |
| /** |
| * Creates a new <code>RemoveFromClasspathAction</code>. The action requires |
| * that the selection provided by the site's selection provider is of type |
| * <code> org.eclipse.jface.viewers.IStructuredSelection</code>. |
| * |
| * @param site the site providing context information for this action |
| */ |
| public RemoveFromClasspathAction(IWorkbenchSite site) { |
| super(site); |
| setText(ActionMessages.RemoveFromClasspathAction_Remove); |
| setToolTipText(ActionMessages.RemoveFromClasspathAction_tooltip); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.REMOVE_FROM_CLASSPATH_ACTION); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared in SelectionDispatchAction |
| */ |
| public void selectionChanged(IStructuredSelection selection) { |
| setEnabled(checkEnabled(selection)); |
| } |
| |
| private static boolean checkEnabled(IStructuredSelection selection) { |
| if (selection.isEmpty()) |
| return false; |
| for (Iterator iter= selection.iterator(); iter.hasNext();) { |
| if (! canRemove(iter.next())) |
| return false; |
| } |
| return true; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared in SelectionDispatchAction |
| */ |
| public void run(final IStructuredSelection selection) { |
| try { |
| PlatformUI.getWorkbench().getActiveWorkbenchWindow().run(true, true, new WorkbenchRunnableAdapter(new IWorkspaceRunnable() { |
| public void run(IProgressMonitor pm) throws CoreException { |
| try{ |
| IPackageFragmentRoot[] roots= getRootsToRemove(selection); |
| pm.beginTask(ActionMessages.RemoveFromClasspathAction_Removing, roots.length); |
| for (int i= 0; i < roots.length; i++) { |
| int jCoreFlags= IPackageFragmentRoot.NO_RESOURCE_MODIFICATION | IPackageFragmentRoot.ORIGINATING_PROJECT_CLASSPATH; |
| roots[i].delete(IResource.NONE, jCoreFlags, new SubProgressMonitor(pm, 1)); |
| } |
| } finally { |
| pm.done(); |
| } |
| } |
| })); |
| } catch (InvocationTargetException e) { |
| ExceptionHandler.handle(e, getShell(), |
| ActionMessages.RemoveFromClasspathAction_exception_dialog_title, |
| ActionMessages.RemoveFromClasspathAction_Problems_occurred); |
| } catch (InterruptedException e) { |
| // canceled |
| } |
| } |
| |
| private static IPackageFragmentRoot[] getRootsToRemove(IStructuredSelection selection){ |
| List result= new ArrayList(selection.size()); |
| for (Iterator iter= selection.iterator(); iter.hasNext();) { |
| Object element= iter.next(); |
| if (canRemove(element)) |
| result.add(element); |
| } |
| return (IPackageFragmentRoot[]) result.toArray(new IPackageFragmentRoot[result.size()]); |
| } |
| |
| private static boolean canRemove(Object element){ |
| if (! (element instanceof IPackageFragmentRoot)) |
| return false; |
| IPackageFragmentRoot root= (IPackageFragmentRoot)element; |
| try { |
| IClasspathEntry cpe= root.getRawClasspathEntry(); |
| if (cpe == null || cpe.getEntryKind() == IClasspathEntry.CPE_CONTAINER) |
| return false; // don't want to remove the container if only a child is selected |
| return true; |
| } catch (JavaModelException e) { |
| if (JavaModelUtil.isExceptionToBeLogged(e)) |
| JavaPlugin.log(e); |
| } |
| return false; |
| } |
| } |
| |