| /******************************************************************************* |
| * Copyright (c) 2000, 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.jdt.internal.corext.buildpath; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| |
| import org.eclipse.jdt.core.IClasspathEntry; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages; |
| |
| /** |
| * Operation to reset all changes and go back to the initial project state. |
| */ |
| public class ResetAllOperation extends ClasspathModifierOperation { |
| private IClasspathEntry[] fEntries; |
| private IPath fOutputLocation; |
| /** |
| * Constructor |
| * |
| * @param listener a <code>IClasspathModifierListener</code> that is notified about |
| * changes on classpath entries or <code>null</code> if no such notification is |
| * necessary. |
| * @param informationProvider a provider to offer information to the action |
| * |
| * @see IClasspathInformationProvider |
| * @see ClasspathModifier |
| */ |
| public ResetAllOperation(IClasspathModifierListener listener, IClasspathInformationProvider informationProvider) { |
| super(listener, informationProvider, NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_Reset_tooltip, IClasspathInformationProvider.RESET_ALL); |
| } |
| |
| /** |
| * Method which runs the actions with a progress monitor.<br> |
| * |
| * This operation requires the following query from the provider: |
| * <li>IOutputFolderQuery</li> |
| * |
| * @param monitor a progress monitor, can be <code>null</code> |
| */ |
| public void run(IProgressMonitor monitor) throws InvocationTargetException { |
| fException= null; |
| try { |
| fInformationProvider.getJavaProject().setRawClasspath(fEntries, fOutputLocation, monitor); |
| fInformationProvider.deleteCreatedResources(); |
| fEntries= null; |
| fOutputLocation= null; |
| } catch (CoreException e) { |
| fException= e; |
| } |
| |
| super.handleResult(null, monitor); |
| } |
| |
| /** |
| * Find out whether this operation can be executed on |
| * the provided list of elements. |
| * |
| * @param elements a list of elements |
| * @param types an array of types for each element, that is, |
| * the type at position 'i' belongs to the selected element |
| * at position 'i' |
| * |
| * @return <code>true</code> if the operation can be |
| * executed on the provided list of elements, <code> |
| * false</code> otherwise. |
| * @throws JavaModelException |
| */ |
| public boolean isValid(List elements, int[] types) throws JavaModelException { |
| IJavaProject project= fInformationProvider.getJavaProject(); |
| if (project == null) |
| return false; |
| if (fEntries == null) { |
| fEntries= project.getRawClasspath(); |
| fOutputLocation= project.getOutputLocation(); |
| } |
| if (!project.getOutputLocation().equals(fOutputLocation)) |
| return true; |
| IClasspathEntry[] currentEntries= project.getRawClasspath(); |
| if (currentEntries.length != fEntries.length) |
| return true; |
| for(int i= 0; i < fEntries.length; i++) { |
| if (!fEntries[i].equals(currentEntries[i])) |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Get a description for this operation. In this particual case |
| * the description is independent of the selection and it's |
| * provided type. |
| * |
| * @param type the type of the selected object, must be a constant of |
| * <code>DialogPackageExplorerActionGroup</code>. |
| * @return a string describing the operation |
| */ |
| public String getDescription(int type) { |
| return NewWizardMessages.PackageExplorerActionGroup_FormText_Default_ResetAll; |
| } |
| } |