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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.properties.customization.ui;
import java.io.IOException;
import java.util.Collection;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.TrayDialog;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.properties.contexts.Context;
import org.eclipse.papyrus.properties.customization.Activator;
import org.eclipse.papyrus.properties.customization.messages.Messages;
import org.eclipse.papyrus.properties.runtime.ConfigurationManager;
import org.eclipse.papyrus.widgets.editors.InputDialog;
import org.eclipse.papyrus.widgets.providers.CollectionContentProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
/**
* A Dialog to display the operations available to customize
* the property view, such as "Copy", "Edit" or "Delete" an
* existing configuration.
*
* @author Camille Letavernier
*/
public class CustomizationDialog extends TrayDialog implements SelectionListener {
private List availableContexts;
private ListViewer availableContextsViewer;
private Button copyContext;
private Button editContext;
private Button removeContext;
/**
*
* Constructor.
*
* @param shell
* The shell in which the dialog will be opened
*/
public CustomizationDialog(final Shell shell) {
super(shell);
}
@Override
public void create() {
super.create();
super.getShell().setText(Messages.CustomizationDialog_customization);
super.getShell().setImage(Activator.getDefault().getImage("/icons/papyrus.png")); //$NON-NLS-1$
Composite contents = new Composite(getDialogArea(), SWT.NONE);
contents.setLayout(new GridLayout(2, false));
contents.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
Label label = new Label(contents, SWT.NONE);
label.setText(Messages.CustomizationDialog_selectContextToEdit);
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1));
Collection<Context> contexts = ConfigurationManager.instance.getContexts();
availableContexts = new List(contents, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
availableContexts.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
availableContextsViewer = new ListViewer(availableContexts);
availableContextsViewer.setContentProvider(CollectionContentProvider.instance);
availableContextsViewer.setLabelProvider(new LabelProvider() {
@Override
public String getText(final Object element) {
if(element != null && element instanceof Context) {
Context context = (Context)element;
return context.getName() + (ConfigurationManager.instance.isPlugin(context) ? Messages.CustomizationDialog_plugin : ""); //$NON-NLS-1$
}
return super.getText(element);
}
});
availableContextsViewer.setInput(contexts);
availableContexts.addSelectionListener(this);
Composite controls = new Composite(contents, SWT.NONE);
controls.setLayout(new FillLayout(SWT.VERTICAL));
copyContext = new Button(controls, SWT.PUSH);
copyContext.setText(Messages.CustomizationDialog_copy);
copyContext.setToolTipText(Messages.CustomizationDialog_createNewCopyByCopy);
copyContext.setEnabled(false);
copyContext.addSelectionListener(this);
editContext = new Button(controls, SWT.PUSH);
editContext.setText(Messages.CustomizationDialog_edit);
editContext.setToolTipText(Messages.CustomizationDialog_editSelectedContext);
editContext.setEnabled(false);
editContext.addSelectionListener(this);
removeContext = new Button(controls, SWT.PUSH);
removeContext.setText(Messages.CustomizationDialog_delete);
removeContext.setToolTipText(Messages.CustomizationDialog_removeSelectedContext);
removeContext.setEnabled(false);
removeContext.addSelectionListener(this);
availableContextsViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(final SelectionChangedEvent event) {
IStructuredSelection selection = (IStructuredSelection)event.getSelection();
boolean activate = false;
if(!selection.isEmpty()) {
Context context = (Context)selection.getFirstElement();
activate = !ConfigurationManager.instance.isPlugin(context);
}
editContext.setEnabled(activate);
copyContext.setEnabled(!selection.isEmpty());
removeContext.setEnabled(activate);
}
});
// generateContext = new Button(controls, SWT.PUSH);
// generateContext.setText("Generate");
// generateContext.setToolTipText("Generates a new Context from a Metamodel");
// generateContext.setEnabled(false);
getShell().pack();
}
protected void editAction() {
EditContextAction action = new EditContextAction();
IStructuredSelection selection = (IStructuredSelection)availableContextsViewer.getSelection();
if(selection.isEmpty()) {
return;
}
Object element = selection.getFirstElement();
if(element instanceof Context) {
Context sourceContext = (Context)element;
try {
action.openEditor(sourceContext);
close();
} catch (Exception ex) {
Activator.log.error("An error occured while initializing the customization editor", ex); //$NON-NLS-1$
return;
}
}
}
protected void copyAction() {
CopyContextAction action = new CopyContextAction();
IStructuredSelection selection = (IStructuredSelection)availableContextsViewer.getSelection();
if(selection.isEmpty()) {
return;
}
Object element = selection.getFirstElement();
if(element instanceof Context) {
Context sourceContext = (Context)element;
try {
InputDialog dialog = new InputDialog(getShell(), Messages.CustomizationDialog_enterConfigurationName, Messages.CustomizationDialog_enterConfigurationName, Messages.CustomizationDialog_copyOf + sourceContext.getName(), new IInputValidator() {
public String isValid(final String newText) {
if(newText.trim().equals("")) { //$NON-NLS-1$
return Messages.CustomizationDialog_configurationNameNotEmpty;
}
if(ConfigurationManager.instance.getContext(newText) != null) {
return Messages.CustomizationDialog_configurationWithSameNameExists;
}
return null;
}
});
dialog.setTitle(Messages.CustomizationDialog_configurationName);
int result = dialog.open();
if(result == Window.OK) {
String targetName = dialog.getText();
action.copy(sourceContext, targetName, false);
availableContextsViewer.setInput(ConfigurationManager.instance.getContexts());
}
} catch (IOException ex) {
Activator.log.error(ex);
}
}
}
protected void deleteAction() {
RemoveContextAction action = new RemoveContextAction();
IStructuredSelection selection = (IStructuredSelection)availableContextsViewer.getSelection();
if(selection.isEmpty()) {
return;
}
Object element = selection.getFirstElement();
if(element instanceof Context) {
Context sourceContext = (Context)element;
if(ConfigurationManager.instance.isPlugin(sourceContext)) {
Activator.log.warn(Messages.CustomizationDialog_cannotDeletePluginContext);
//Plugin context cannot be deleted
return;
}
MessageDialog dialog = new MessageDialog(getShell(), Messages.CustomizationDialog_deleteContext, null, Messages.CustomizationDialog_deleteContextConfirmation1 + sourceContext.getName() + Messages.CustomizationDialog_deleteContextConfirmation2, MessageDialog.CONFIRM, new String[]{ IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL, IDialogConstants.CANCEL_LABEL }, 2);
int result = dialog.open();
if(result == 0) { //0 is "Yes" (It is *not* the same 0 as Window.OK)
action.removeContext(sourceContext);
availableContextsViewer.setInput(ConfigurationManager.instance.getContexts());
}
}
}
@Override
protected int getShellStyle() {
return super.getShellStyle() | SWT.RESIZE;
}
@Override
protected Composite getDialogArea() {
return (Composite)super.getDialogArea();
}
public void widgetSelected(final SelectionEvent e) {
if(e.widget == editContext) {
editAction();
} else if(e.widget == removeContext) {
deleteAction();
} else if(e.widget == copyContext) {
copyAction();
}
}
public void widgetDefaultSelected(final SelectionEvent e) {
if(e.widget == availableContexts) {
IStructuredSelection selection = (IStructuredSelection)availableContextsViewer.getSelection();
if(!selection.isEmpty()) {
Context context = (Context)selection.getFirstElement();
if(ConfigurationManager.instance.isPlugin(context)) {
copyAction();
} else {
editAction();
}
}
}
}
}
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