/projects/eclipse_SDK-3.7.1/plugins/org.eclipse.jdt.ui.source_3.7.1.r371_v20110824-0800/org/eclipse/jdt/ui/actions/OpenProjectAction.java
Java | 240 lines | 167 code | 27 blank | 46 comment | 34 complexity | becc8cb8f4d3edc45bebffb91580969d MD5 | raw file
- /*******************************************************************************
- * Copyright (c) 2000, 2011 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.List;
- import org.eclipse.core.runtime.CoreException;
- import org.eclipse.core.runtime.IAdaptable;
- import org.eclipse.core.runtime.IProgressMonitor;
- import org.eclipse.core.runtime.IStatus;
- import org.eclipse.core.runtime.MultiStatus;
- import org.eclipse.core.runtime.SubProgressMonitor;
- import org.eclipse.core.resources.IProject;
- import org.eclipse.core.resources.IResourceChangeEvent;
- import org.eclipse.core.resources.IResourceChangeListener;
- import org.eclipse.core.resources.IResourceDelta;
- import org.eclipse.core.resources.IWorkspaceRunnable;
- import org.eclipse.core.resources.ResourcesPlugin;
- import org.eclipse.jface.viewers.ArrayContentProvider;
- import org.eclipse.jface.viewers.ISelection;
- import org.eclipse.jface.viewers.IStructuredSelection;
- import org.eclipse.jface.viewers.StructuredSelection;
- import org.eclipse.jface.window.Window;
- import org.eclipse.ui.IWorkbenchSite;
- import org.eclipse.ui.IWorkingSet;
- import org.eclipse.ui.PlatformUI;
- import org.eclipse.ui.actions.OpenResourceAction;
- import org.eclipse.ui.dialogs.ListSelectionDialog;
- import org.eclipse.jdt.core.IJavaProject;
- import org.eclipse.jdt.ui.JavaElementLabelProvider;
- import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
- import org.eclipse.jdt.internal.ui.JavaPlugin;
- import org.eclipse.jdt.internal.ui.actions.ActionMessages;
- import org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter;
- import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
- /**
- * Action to open a closed project. Action either opens the closed projects
- * provided by the structured selection or presents a dialog from which the
- * user can select the projects to be opened.
- *
- * <p>
- * This class may be instantiated; it is not intended to be subclassed.
- * </p>
- *
- * @since 2.0
- *
- * @noextend This class is not intended to be subclassed by clients.
- */
- public class OpenProjectAction extends SelectionDispatchAction implements IResourceChangeListener {
- private int CLOSED_PROJECTS_SELECTED= 1;
- private int OTHER_ELEMENTS_SELECTED= 2;
- private OpenResourceAction fWorkbenchAction;
- /**
- * Creates a new <code>OpenProjectAction</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 OpenProjectAction(IWorkbenchSite site) {
- super(site);
- fWorkbenchAction= new OpenResourceAction(site);
- setText(fWorkbenchAction.getText());
- setToolTipText(fWorkbenchAction.getToolTipText());
- PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.OPEN_PROJECT_ACTION);
- setEnabled(hasClosedProjectsInWorkspace());
- }
- /*
- * @see IResourceChangeListener#resourceChanged(IResourceChangeEvent)
- */
- public void resourceChanged(IResourceChangeEvent event) {
- IResourceDelta delta = event.getDelta();
- if (delta != null) {
- IResourceDelta[] projDeltas = delta.getAffectedChildren(IResourceDelta.CHANGED);
- for (int i = 0; i < projDeltas.length; ++i) {
- IResourceDelta projDelta = projDeltas[i];
- if ((projDelta.getFlags() & IResourceDelta.OPEN) != 0) {
- setEnabled(hasClosedProjectsInWorkspace());
- return;
- }
- }
- }
- }
- //---- normal selection -------------------------------------
- /* (non-Javadoc)
- * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#selectionChanged(org.eclipse.jface.viewers.ISelection)
- */
- @Override
- public void selectionChanged(ISelection selection) {
- }
- /* (non-Javadoc)
- * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#run(org.eclipse.jface.viewers.ISelection)
- */
- @Override
- public void run(ISelection selection) {
- internalRun(null);
- }
- private int evaluateSelection(IStructuredSelection selection, List<Object> allClosedProjects) {
- Object[] array= selection.toArray();
- int selectionStatus = 0;
- for (int i= 0; i < array.length; i++) {
- Object curr= array[i];
- if (isClosedProject(curr)) {
- if (allClosedProjects != null)
- allClosedProjects.add(curr);
- selectionStatus |= CLOSED_PROJECTS_SELECTED;
- } else {
- if (curr instanceof IWorkingSet) {
- IAdaptable[] elements= ((IWorkingSet) curr).getElements();
- for (int k= 0; k < elements.length; k++) {
- Object elem= elements[k];
- if (isClosedProject(elem)) {
- if (allClosedProjects != null)
- allClosedProjects.add(elem);
- selectionStatus |= CLOSED_PROJECTS_SELECTED;
- }
- }
- }
- selectionStatus |= OTHER_ELEMENTS_SELECTED;
- }
- }
- return selectionStatus;
- }
- private static boolean isClosedProject(Object element) {
- if (element instanceof IJavaProject) {
- IProject project= ((IJavaProject) element).getProject();
- return !project.isOpen();
- }
- // assume all closed project are rendered as IProject
- return element instanceof IProject && !((IProject) element).isOpen();
- }
- //---- structured selection ---------------------------------------
- /* (non-Javadoc)
- * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#run(org.eclipse.jface.viewers.IStructuredSelection)
- */
- @Override
- public void run(IStructuredSelection selection) {
- List<Object> allClosedProjects= new ArrayList<Object>();
- int selectionStatus= evaluateSelection(selection, allClosedProjects);
- if ((selectionStatus & CLOSED_PROJECTS_SELECTED) != 0) { // selection contains closed projects
- fWorkbenchAction.selectionChanged(new StructuredSelection(allClosedProjects));
- fWorkbenchAction.run();
- } else {
- internalRun(allClosedProjects);
- }
- }
- private void internalRun(List<?> initialSelection) {
- ListSelectionDialog dialog= new ListSelectionDialog(getShell(), getClosedProjectsInWorkspace(), new ArrayContentProvider(), new JavaElementLabelProvider(), ActionMessages.OpenProjectAction_dialog_message);
- dialog.setTitle(ActionMessages.OpenProjectAction_dialog_title);
- if (initialSelection != null && !initialSelection.isEmpty()) {
- dialog.setInitialElementSelections(initialSelection);
- }
- int result= dialog.open();
- if (result != Window.OK)
- return;
- final Object[] projects= dialog.getResult();
- IWorkspaceRunnable runnable= createRunnable(projects);
- try {
- PlatformUI.getWorkbench().getProgressService().run(true, true, new WorkbenchRunnableAdapter(runnable));
- } catch (InvocationTargetException e) {
- ExceptionHandler.handle(e, getShell(), ActionMessages.OpenProjectAction_dialog_title, ActionMessages.OpenProjectAction_error_message);
- } catch (InterruptedException e) {
- // user cancelled
- }
- }
- private IWorkspaceRunnable createRunnable(final Object[] projects) {
- return new IWorkspaceRunnable() {
- public void run(IProgressMonitor monitor) throws CoreException {
- monitor.beginTask("", projects.length); //$NON-NLS-1$
- MultiStatus errorStatus= null;
- for (int i = 0; i < projects.length; i++) {
- IProject project= (IProject)projects[i];
- try {
- project.open(new SubProgressMonitor(monitor, 1));
- } catch (CoreException e) {
- if (errorStatus == null)
- errorStatus = new MultiStatus(JavaPlugin.getPluginId(), IStatus.ERROR, ActionMessages.OpenProjectAction_error_message, null);
- errorStatus.add(e.getStatus());
- }
- }
- monitor.done();
- if (errorStatus != null)
- throw new CoreException(errorStatus);
- }
- };
- }
- private Object[] getClosedProjectsInWorkspace() {
- IProject[] projects= ResourcesPlugin.getWorkspace().getRoot().getProjects();
- List<IProject> result= new ArrayList<IProject>(5);
- for (int i = 0; i < projects.length; i++) {
- IProject project= projects[i];
- if (!project.isOpen())
- result.add(project);
- }
- return result.toArray();
- }
- private boolean hasClosedProjectsInWorkspace() {
- IProject[] projects= ResourcesPlugin.getWorkspace().getRoot().getProjects();
- for (int i = 0; i < projects.length; i++) {
- if (!projects[i].isOpen())
- return true;
- }
- return false;
- }
- }