/*******************************************************************************
* Copyright (c) 2000, 2007 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
*
*******************************************************************************/
package org.eclipse.dltk.internal.ui.wizards.buildpath.newsourcepage;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.dltk.core.IBuildpathEntry;
import org.eclipse.dltk.core.IProjectFragment;
import org.eclipse.dltk.core.IScriptProject;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.corext.buildpath.BuildpathModifier;
import org.eclipse.dltk.internal.ui.scriptview.BuildPathContainer;
import org.eclipse.dltk.internal.ui.wizards.NewWizardMessages;
import org.eclipse.dltk.internal.ui.wizards.buildpath.BPListElement;
import org.eclipse.dltk.internal.ui.wizards.buildpath.newsourcepage.BuildpathModifierQueries.IRemoveLinkedFolderQuery;
import org.eclipse.dltk.ui.DLTKPluginImages;
import org.eclipse.dltk.ui.DLTKUIPlugin;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ISetSelectionTarget;
public class RemoveFromBuildpathAction extends Action implements ISelectionChangedListener {
private final IWorkbenchSite fSite;
private List fSelectedElements; // IPackageFramgentRoot || IScriptProject ||
// BuildpathContainer iff isEnabled()
public RemoveFromBuildpathAction(IWorkbenchSite site) {
super(NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_label, DLTKPluginImages.DESC_ELCL_REMOVE_FROM_BP);
setToolTipText(NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_tooltip);
fSite = site;
fSelectedElements = new ArrayList();
}
/**
* {@inheritDoc}
*/
public void run() {
try {
final IScriptProject project;
Object object = fSelectedElements.get(0);
if (object instanceof IScriptProject) {
project = (IScriptProject) object;
} else if (object instanceof IProjectFragment) {
IProjectFragment root = (IProjectFragment) object;
project = root.getScriptProject();
} else {
BuildPathContainer container = (BuildPathContainer) object;
project = container.getScriptProject();
}
final List elementsToRemove = new ArrayList();
final List foldersToDelete = new ArrayList();
queryToRemoveLinkedFolders(elementsToRemove, foldersToDelete);
final IRunnableWithProgress runnable = new IRunnableWithProgress() {
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
try {
monitor.beginTask(NewWizardMessages.BuildpathModifier_Monitor_RemoveFromBuildpath, elementsToRemove.size()
+ foldersToDelete.size());
List result = removeFromBuildpath(elementsToRemove, project, new SubProgressMonitor(monitor,
elementsToRemove.size()));
result.removeAll(foldersToDelete);
deleteFolders(foldersToDelete, new SubProgressMonitor(monitor, foldersToDelete.size()));
if (result.size() == 0)
result.add(project);
selectAndReveal(new StructuredSelection(result));
} catch (CoreException e) {
throw new InvocationTargetException(e);
} finally {
monitor.done();
}
}
};
PlatformUI.getWorkbench().getProgressService().run(true, false, runnable);
} catch (InvocationTargetException e) {
if (e.getCause() instanceof CoreException) {
showExceptionDialog((CoreException) e.getCause());
} else {
DLTKUIPlugin.log(e);
}
} catch (InterruptedException e) {
} catch (ModelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void deleteFolders(List folders, IProgressMonitor monitor) throws CoreException {
try {
monitor.beginTask(NewWizardMessages.BuildpathModifier_Monitor_RemoveFromBuildpath, folders.size());
for (Iterator iter = folders.iterator(); iter.hasNext();) {
IFolder folder = (IFolder) iter.next();
folder.delete(true, true, new SubProgressMonitor(monitor, 1));
}
} finally {
monitor.done();
}
}
private List removeFromBuildpath(List elements, IScriptProject project, IProgressMonitor monitor) throws CoreException {
try {
monitor.beginTask(NewWizardMessages.BuildpathModifier_Monitor_RemoveFromBuildpath, elements.size() + 1);
List existingEntries = BuildpathModifier.getExistingEntries(project);
List result = new ArrayList();
for (int i = 0; i < elements.size(); i++) {
Object element = elements.get(i);
if (element instanceof IScriptProject) {
Object res = BuildpathModifier.removeFromBuildpath((IScriptProject) element, existingEntries, new SubProgressMonitor(
monitor, 1));
result.add(res);
} else if (element instanceof IProjectFragment) {
Object res = BuildpathModifier.removeFromBuildpath((IProjectFragment) element, existingEntries, project,
new SubProgressMonitor(monitor, 1));
if (res != null)
result.add(res);
} else {
existingEntries.remove(BPListElement.createFromExisting(((BuildPathContainer) element).getBuildpathEntry(), project));
}
}
BuildpathModifier.commitBuildPath(existingEntries, project, new SubProgressMonitor(monitor, 1));
return result;
} finally {
monitor.done();
}
}
private void queryToRemoveLinkedFolders(final List elementsToRemove, final List foldersToDelete) throws ModelException {
final Shell shell = fSite.getShell() != null ? fSite.getShell() : DLTKUIPlugin.getActiveWorkbenchShell();
for (Iterator iter = fSelectedElements.iterator(); iter.hasNext();) {
Object element = iter.next();
if (element instanceof IProjectFragment) {
IFolder folder = getLinkedSourceFolder((IProjectFragment) 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(IProjectFragment root) throws ModelException {
if (root.getKind() != IProjectFragment.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;
}
public void selectionChanged(final SelectionChangedEvent event) {
final ISelection selection = event.getSelection();
if (selection instanceof IStructuredSelection) {
setEnabled(canHandle((IStructuredSelection) selection));
} else {
setEnabled(canHandle(StructuredSelection.EMPTY));
}
}
private boolean canHandle(IStructuredSelection elements) {
if (elements.size() == 0)
return false;
try {
fSelectedElements.clear();
for (Iterator iter = elements.iterator(); iter.hasNext();) {
Object element = iter.next();
fSelectedElements.add(element);
if (!(element instanceof IProjectFragment || element instanceof IScriptProject || element instanceof BuildPathContainer))
return false;
if (element instanceof IScriptProject) {
IScriptProject project = (IScriptProject) element;
if (!BuildpathModifier.isSourceFolder(project))
return false;
} else if (element instanceof IProjectFragment) {
IBuildpathEntry entry = ((IProjectFragment) element).getRawBuildpathEntry();
if (entry != null && entry.getEntryKind() == IBuildpathEntry.BPE_CONTAINER) {
return false;
}
}
}
return true;
} catch (ModelException e) {
}
return false;
}
private void showExceptionDialog(CoreException exception) {
showError(exception, fSite.getShell(), NewWizardMessages.RemoveFromBuildpathAction_ErrorTitle, exception.getMessage());
}
private void showError(CoreException e, Shell shell, String title, String message) {
IStatus status = e.getStatus();
if (status != null) {
ErrorDialog.openError(shell, message, title, status);
} else {
MessageDialog.openError(shell, title, message);
}
}
private void selectAndReveal(final ISelection selection) {
// validate the input
IWorkbenchPage page = fSite.getPage();
if (page == null)
return;
// get all the view and editor parts
List<IWorkbenchPart> parts = new ArrayList<IWorkbenchPart>();
IWorkbenchPartReference refs[] = page.getViewReferences();
for (int i = 0; i < refs.length; i++) {
IWorkbenchPart part = refs[i].getPart(false);
if (part != null)
parts.add(part);
}
refs = page.getEditorReferences();
for (int i = 0; i < refs.length; i++) {
if (refs[i].getPart(false) != null)
parts.add(refs[i].getPart(false));
}
for (IWorkbenchPart part : parts) {
// get the part's ISetSelectionTarget implementation
ISetSelectionTarget target = null;
if (part instanceof ISetSelectionTarget)
target = (ISetSelectionTarget) part;
else
target = (ISetSelectionTarget) part.getAdapter(ISetSelectionTarget.class);
if (target != null) {
// select and reveal resource
final ISetSelectionTarget finalTarget = target;
page.getWorkbenchWindow().getShell().getDisplay().asyncExec(new Runnable() {
public void run() {
finalTarget.selectReveal(selection);
}
});
}
}
}
}