/*******************************************************************************
* 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.internal.ui.wizards.buildpaths.newsourcepage;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.operation.IRunnableContext;
import org.eclipse.jface.operation.IRunnableWithProgress;
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.PlatformUI;
import org.eclipse.ui.part.ISetSelectionTarget;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.corext.buildpath.BuildpathDelta;
import org.eclipse.jdt.internal.corext.buildpath.CPJavaProject;
import org.eclipse.jdt.internal.corext.buildpath.ClasspathModifier;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.corext.util.Messages;
import org.eclipse.jdt.ui.JavaElementLabels;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer;
import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
import org.eclipse.jdt.internal.ui.wizards.buildpaths.CPListElement;
import org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ClasspathModifierQueries.IRemoveLinkedFolderQuery;
//SelectedElements iff enabled: IPackageFramgentRoot || IJavaProject || ClassPathContainer
public class RemoveFromBuildpathAction extends BuildpathModifierAction {
private final IRunnableContext fContext;
public RemoveFromBuildpathAction(IWorkbenchSite site) {
this(site, null, PlatformUI.getWorkbench().getProgressService());
setImageDescriptor(JavaPluginImages.DESC_ELCL_REMOVE_FROM_BP);
}
public RemoveFromBuildpathAction(IRunnableContext context, ISetSelectionTarget selectionTarget) {
this(null, selectionTarget, context);
setImageDescriptor(JavaPluginImages.DESC_ELCL_REMOVE_AS_SOURCE_FOLDER);
setDisabledImageDescriptor(JavaPluginImages.DESC_DLCL_REMOVE_AS_SOURCE_FOLDER);
}
public RemoveFromBuildpathAction(IWorkbenchSite site, ISetSelectionTarget selectionTarget, IRunnableContext context) {
super(site, selectionTarget, BuildpathModifierAction.REMOVE_FROM_BP);
fContext= context;
setText(NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_label);
setToolTipText(NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_tooltip);
}
/**
* {@inheritDoc}
*/
@Override
public String getDetailedDescription() {
if (!isEnabled())
return null;
if (getSelectedElements().size() != 1)
return NewWizardMessages.PackageExplorerActionGroup_FormText_Default_FromBuildpath;
Object elem= getSelectedElements().get(0);
if (elem instanceof IJavaProject) {
String name= ClasspathModifier.escapeSpecialChars(JavaElementLabels.getElementLabel(((IJavaElement)elem), JavaElementLabels.ALL_DEFAULT));
return Messages.format(NewWizardMessages.PackageExplorerActionGroup_FormText_ProjectFromBuildpath, name);
} else if (elem instanceof IPackageFragmentRoot) {
String name= ClasspathModifier.escapeSpecialChars(JavaElementLabels.getElementLabel(((IJavaElement)elem), JavaElementLabels.ALL_DEFAULT));
return Messages.format(NewWizardMessages.PackageExplorerActionGroup_FormText_fromBuildpath, name);
} else if (elem instanceof ClassPathContainer) {
return NewWizardMessages.PackageExplorerActionGroup_FormText_Default_FromBuildpath;
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public void run() {
try {
final IJavaProject project;
Object object= getSelectedElements().get(0);
if (object instanceof IJavaProject) {
project= (IJavaProject)object;
} else if (object instanceof IPackageFragmentRoot) {
IPackageFragmentRoot root= (IPackageFragmentRoot)object;
project= root.getJavaProject();
} else {
ClassPathContainer container= (ClassPathContainer)object;
project= container.getJavaProject();
}
final List<Object> elementsToRemove= new ArrayList<Object>();
final List<IFolder> foldersToDelete= new ArrayList<IFolder>();
queryToRemoveLinkedFolders(elementsToRemove, foldersToDelete);
final IRunnableWithProgress runnable= new IRunnableWithProgress() {
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
try {
monitor.beginTask(NewWizardMessages.ClasspathModifier_Monitor_RemoveFromBuildpath, foldersToDelete.size() + 10);
CPJavaProject cpProject= CPJavaProject.createFromExisting(project);
CPListElement[] toRemove= new CPListElement[elementsToRemove.size()];
int i= 0;
for (Iterator<Object> iterator= elementsToRemove.iterator(); iterator.hasNext();) {
Object element= iterator.next();
if (element instanceof IJavaProject) {
toRemove[i]= ClasspathModifier.getListElement(((IJavaProject)element).getPath(), cpProject.getCPListElements());
} else if (element instanceof IPackageFragmentRoot) {
toRemove[i]= CPListElement.createFromExisting(((IPackageFragmentRoot)element).getRawClasspathEntry(), project);
} else {
toRemove[i]= CPListElement.createFromExisting(((ClassPathContainer)element).getClasspathEntry(), project);
}
i++;
}
BuildpathDelta delta= ClasspathModifier.removeFromBuildpath(toRemove, cpProject);
ClasspathModifier.commitClassPath(cpProject, new SubProgressMonitor(monitor, 10));
deleteFolders(foldersToDelete, new SubProgressMonitor(monitor, foldersToDelete.size()));
informListeners(delta);
if (delta.getDeletedResources().length == foldersToDelete.size()) {
selectAndReveal(new StructuredSelection(project));
} else {
List<IResource> result= new ArrayList<IResource>(Arrays.asList(delta.getDeletedResources()));
result.removeAll(foldersToDelete);
selectAndReveal(new StructuredSelection(result));
}
} catch (CoreException e) {
throw new InvocationTargetException(e);
} finally {
monitor.done();
}
}
};
fContext.run(false, false, runnable);
} catch (CoreException e) {
showExceptionDialog(e, NewWizardMessages.RemoveFromBuildpathAction_ErrorTitle);
} catch (InvocationTargetException e) {
if (e.getCause() instanceof CoreException) {
showExceptionDialog((CoreException)e.getCause(), NewWizardMessages.RemoveFromBuildpathAction_ErrorTitle);
} else {
JavaPlugin.log(e);
}
} catch (InterruptedException e) {
}
}
private void deleteFolders(List<IFolder> folders, IProgressMonitor monitor) throws CoreException {
try {
monitor.beginTask(NewWizardMessages.ClasspathModifier_Monitor_RemoveFromBuildpath, folders.size());
for (Iterator<IFolder> iter= folders.iterator(); iter.hasNext();) {
IFolder folder= iter.next();
folder.delete(true, true, new SubProgressMonitor(monitor, 1));
}
} finally {
monitor.done();
}
}
private void queryToRemoveLinkedFolders(final List<Object> elementsToRemove, final List<IFolder> foldersToDelete) throws JavaModelException {
final Shell shell= getShell();
for (Iterator<?> iter= getSelectedElements().iterator(); iter.hasNext();) {
Object element= iter.next();
if (element instanceof IPackageFragmentRoot) {
IFolder folder= getLinkedSourceFolder((IPackageFragmentRoot)element);
if (folder != null) {
RemoveLinkedFolderDialog dialog= new RemoveLinkedFolderDialog(shell, folder);
final int result= dialog.open() == Window.OK?dialog.getRemoveStatus():IRemoveLinkedFolderQuery.REMOVE_CANCEL;
if (result != IRemoveLinkedFolderQuery.REMOVE_CANCEL) {
if (result == IRemoveLinkedFolderQuery.REMOVE_BUILD_PATH) {
elementsToRemove.add(element);
} else if (result == IRemoveLinkedFolderQuery.REMOVE_BUILD_PATH_AND_FOLDER) {
elementsToRemove.add(element);
foldersToDelete.add(folder);
}
}
} else {
elementsToRemove.add(element);
}
} else {
elementsToRemove.add(element);
}
}
}
private IFolder getLinkedSourceFolder(IPackageFragmentRoot root) throws JavaModelException {
if (root.getKind() != IPackageFragmentRoot.K_SOURCE)
return null;
final IResource resource= root.getCorrespondingResource();
if (!(resource instanceof IFolder))
return null;
final IFolder folder= (IFolder) resource;
if (!folder.isLinked())
return null;
return folder;
}
@Override
protected boolean canHandle(IStructuredSelection elements) {
if (elements.size() == 0)
return false;
try {
for (Iterator<?> iter= elements.iterator(); iter.hasNext();) {
Object element= iter.next();
if (element instanceof IJavaProject) {
IJavaProject project= (IJavaProject)element;
if (!ClasspathModifier.isSourceFolder(project))
return false;
} else if (element instanceof IPackageFragmentRoot) {
IClasspathEntry entry= JavaModelUtil.getClasspathEntry((IPackageFragmentRoot) element);
if (entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER)
return false;
if (entry.getReferencingEntry() != null)
return false;
} else if (element instanceof ClassPathContainer) {
return true;
} else {
return false;
}
}
return true;
} catch (JavaModelException e) {
}
return false;
}
}