/*******************************************************************************
* Copyright (c) 2011 Red Hat, Inc.
* All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.bpmn2.modeler.ui.wizards;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.dialogs.IDialogPage;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
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.Text;
import org.eclipse.ui.dialogs.ContainerSelectionDialog;
public class BPMN2DiagramWizardPage extends WizardPage {
private Text containerText;
private Text fileText;
private final ISelection selection;
private IResource diagramContainer;
/**
* Constructor for SampleNewWizardPage.
*
* @param pageName
*/
public BPMN2DiagramWizardPage(ISelection selection) {
super("wizardPage");
setTitle("New BPMN2 File");
setDescription("Create a new BPMN2 file.");
this.selection = selection;
}
/**
* @see IDialogPage#createControl(Composite)
*/
@Override
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NULL);
GridLayout layout = new GridLayout();
container.setLayout(layout);
layout.numColumns = 3;
layout.verticalSpacing = 9;
Label label = new Label(container, SWT.NULL);
label.setText("&Location:");
containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
containerText.setLayoutData(gd);
containerText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
dialogChanged();
}
});
Button button = new Button(container, SWT.PUSH);
button.setText("Browse...");
button.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
handleBrowse();
}
});
label = new Label(container, SWT.NULL);
label.setText("&File name:");
fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
gd = new GridData(GridData.FILL_HORIZONTAL);
fileText.setLayoutData(gd);
fileText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
dialogChanged();
}
});
initialize();
dialogChanged();
setControl(container);
}
/**
* Tests if the current workbench selection is a suitable diagramContainer to use.
*/
private void initialize() {
if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
IStructuredSelection ssel = (IStructuredSelection) selection;
if (ssel.size() > 1) {
return;
}
Object obj = ssel.getFirstElement();
if (obj instanceof IResource) {
IContainer container;
if (obj instanceof IContainer) {
container = (IContainer) obj;
} else {
container = ((IResource) obj).getParent();
}
containerText.setText(container.getFullPath().toString());
}
}
fileText.setText("new_file.bpmn");
}
/**
* Uses the standard diagramContainer selection dialog to choose the new value for the diagramContainer field.
*/
private void handleBrowse() {
ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(), ResourcesPlugin.getWorkspace()
.getRoot(), false, "Select Folder for the diagram");
if (dialog.open() == Window.OK) {
Object[] result = dialog.getResult();
if (result.length == 1) {
containerText.setText(((Path) result[0]).toString());
}
}
}
/**
* Ensures that both text fields are set.
*/
private void dialogChanged() {
diagramContainer = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(getContainerName()));
String fileName = getFileName();
if (getContainerName().length() == 0) {
updateStatus("Folder must be specified");
return;
}
if (diagramContainer == null || (diagramContainer.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) {
updateStatus("Folder must exist");
return;
}
if (!diagramContainer.isAccessible()) {
updateStatus("Project must be writable");
return;
}
if (fileName.length() == 0) {
updateStatus("Name must be specified");
return;
}
if (fileName.replace('\\', '/').indexOf('/', 1) > 0) {
updateStatus("Name must be valid");
return;
}
int dotLoc = fileName.lastIndexOf('.');
if (dotLoc != -1) {
String ext = fileName.substring(dotLoc + 1);
if (ext.equalsIgnoreCase("bpmn") == false && ext.equalsIgnoreCase("bpmn2") == false) {
updateStatus("File extension must be \"bpmn\" or \"bpmn2\"");
return;
}
}
updateStatus(null);
}
private void updateStatus(String message) {
setErrorMessage(message);
setPageComplete(message == null);
}
public String getContainerName() {
return containerText.getText();
}
public String getFileName() {
return fileText.getText();
}
public IResource getDiagramContainer() {
return diagramContainer;
}
}