* This class may be instantiated; it is not intended to be subclassed. *
* * @since 2.0 */ public class OpenProjectAction extends SelectionDispatchAction implements IResourceChangeListener { private static final int EMPTY_SELECTION = 1; private static final int ELEMENT_SELECTION = 2; private int fMode; private OpenResourceAction fWorkbenchAction; /** * Creates a newOpenProjectAction. The action requires that
* the selection provided by the site's selection provider is of type
* org.eclipse.jface.viewers.IStructuredSelection.
*
* @param site
* the site providing context information for this action
*/
public OpenProjectAction(IWorkbenchSite site) {
super(site);
fWorkbenchAction = new OpenResourceAction(site.getShell());
setText(fWorkbenchAction.getText());
setToolTipText(fWorkbenchAction.getToolTipText());
setEnabled(hasCloseProjects());
PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.OPEN_PROJECT_ACTION);
}
/*
* @see IResourceChangeListener#resourceChanged(IResourceChangeEvent)
*/
public void resourceChanged(IResourceChangeEvent event) {
fWorkbenchAction.resourceChanged(event);
switch (fMode) {
case ELEMENT_SELECTION:
setEnabled(fWorkbenchAction.isEnabled());
break;
case EMPTY_SELECTION:
internalResourceChanged(event);
break;
}
}
private void internalResourceChanged(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(hasCloseProjects());
return;
}
}
}
}
// ---- normal selection -------------------------------------
/*
* (non-Javadoc)
*
* @see net.sourceforge.phpdt.ui.actions.SelectionDispatchAction#selectionChanged(org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(ISelection selection) {
setEnabled(hasCloseProjects());
fMode = EMPTY_SELECTION;
}
/*
* (non-Javadoc)
*
* @see net.sourceforge.phpdt.ui.actions.SelectionDispatchAction#run(org.eclipse.jface.viewers.ISelection)
*/
public void run(ISelection selection) {
internalRun();
}
// ---- structured selection ---------------------------------------
/*
* (non-Javadoc)
*
* @see net.sourceforge.phpdt.ui.actions.SelectionDispatchAction#selectionChanged(org.eclipse.jface.viewers.IStructuredSelection)
*/
public void selectionChanged(IStructuredSelection selection) {
if (selection.isEmpty()) {
setEnabled(hasCloseProjects());
fMode = EMPTY_SELECTION;
return;
}
fWorkbenchAction.selectionChanged(selection);
setEnabled(fWorkbenchAction.isEnabled());
fMode = ELEMENT_SELECTION;
}
/*
* (non-Javadoc)
*
* @see net.sourceforge.phpdt.ui.actions.SelectionDispatchAction#run(org.eclipse.jface.viewers.IStructuredSelection)
*/
public void run(IStructuredSelection selection) {
if (selection.isEmpty()) {
internalRun();
return;
}
fWorkbenchAction.run();
}
private void internalRun() {
ElementListSelectionDialog dialog = new ElementListSelectionDialog(getShell(), new JavaElementLabelProvider());
dialog.setTitle(ActionMessages.OpenProjectAction_dialog_title);
dialog.setMessage(ActionMessages.OpenProjectAction_dialog_message);
dialog.setElements(getClosedProjects());
dialog.setMultipleSelection(true);
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) {
}
}
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(PHPeclipsePlugin.getPluginId(), IStatus.ERROR,
ActionMessages.OpenProjectAction_error_message, e);
errorStatus.merge(e.getStatus());
}
}
monitor.done();
if (errorStatus != null)
throw new CoreException(errorStatus);
}
};
}
private Object[] getClosedProjects() {
IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
List result = new ArrayList(5);
for (int i = 0; i < projects.length; i++) {
IProject project = projects[i];
if (!project.isOpen())
result.add(project);
}
return result.toArray();
}
private boolean hasCloseProjects() {
IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
for (int i = 0; i < projects.length; i++) {
if (!projects[i].isOpen())
return true;
}
return false;
}
}