/*******************************************************************************
* Copyright (c) 2011, 2012 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
*
* @author Innar Made
******************************************************************************/
package org.eclipse.bpmn2.modeler.ui.wizards;
import org.eclipse.bpmn2.modeler.core.preferences.Bpmn2Preferences;
import org.eclipse.bpmn2.modeler.core.runtime.TargetRuntime;
import org.eclipse.bpmn2.modeler.core.utils.ModelUtil.Bpmn2DiagramType;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.common.util.URI;
import org.eclipse.jface.dialogs.IDialogPage;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.osgi.util.NLS;
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 BPMN2DiagramWizardPage2 extends WizardPage {
private Text containerText;
private Text fileText;
private Text targetNamespaceText;
private ISelection selection;
private IResource diagramContainer;
/**
* Constructor for SampleNewWizardPage.
*
* @param pageName
*/
public BPMN2DiagramWizardPage2(ISelection selection) {
super("wizardPage2"); //$NON-NLS-1$
setTitle(Messages.BPMN2DiagramWizardPage2_Title);
setDescription(Messages.BPMN2DiagramWizardPage2_Description);
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(Messages.BPMN2DiagramWizardPage2_Location_Label);
containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
containerText.setLayoutData(gd);
containerText.setEditable(false);
containerText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
targetNamespaceText.setText(""); //$NON-NLS-1$
dialogChanged(true);
}
});
Button button = new Button(container, SWT.PUSH);
button.setText(Messages.BPMN2DiagramWizardPage2_Browse_Button);
button.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
handleBrowse();
}
});
label = new Label(container, SWT.NULL);
label.setText(Messages.BPMN2DiagramWizardPage2_File_Name_Label);
fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
fileText.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
fileText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
dialogChanged(false);
}
});
label = new Label(container, SWT.NULL);
label.setText(Messages.BPMN2DiagramWizardPage2_TargetNamespace_Label);
targetNamespaceText = new Text(container, SWT.BORDER | SWT.SINGLE);
targetNamespaceText.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
targetNamespaceText.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
dialogChanged(false);
}
});
updatePageDescription();
updateFilename();
dialogChanged(true);
setControl(container);
}
private Bpmn2DiagramType getDiagramType() {
BPMN2DiagramWizardPage1 page1 = (BPMN2DiagramWizardPage1)getWizard().getPage("wizardPage1"); //$NON-NLS-1$
return page1.getDiagramType();
}
/**
* Tests if the current workbench selection is a suitable diagramContainer to use.
*/
private void updatePageDescription() {
BPMN2DiagramWizardPage1 page1 = (BPMN2DiagramWizardPage1)getWizard().getPage("wizardPage1"); //$NON-NLS-1$
String descriptionType = Messages.BPMN2DiagramWizardPage2_Error_Unknown_Type;
switch (page1.getDiagramType()) {
case PROCESS:
descriptionType = Messages.BPMN2DiagramWizardPage2_Process_Diagram;
break;
case COLLABORATION:
descriptionType = Messages.BPMN2DiagramWizardPage2_Collaboration_Diagram;
break;
case CHOREOGRAPHY:
descriptionType = Messages.BPMN2DiagramWizardPage2_Choreography_Diagram;
break;
default:
break;
}
setDescription(Messages.BPMN2DiagramWizardPage2_Filename_Prompt+descriptionType);
}
private void updateFilename() {
BPMN2DiagramWizardPage1 page1 = (BPMN2DiagramWizardPage1)getWizard().getPage("wizardPage1"); //$NON-NLS-1$
String fileType = "unknown"; //$NON-NLS-1$
String filename = fileType+".bpmn"; //$NON-NLS-1$
switch (page1.getDiagramType()) {
case PROCESS:
fileType = "process"; //$NON-NLS-1$
break;
case COLLABORATION:
fileType = "collaboration"; //$NON-NLS-1$
break;
case CHOREOGRAPHY:
fileType = "choreography"; //$NON-NLS-1$
break;
default:
return;
}
IContainer container = getFileContainer();
if (container!=null) {
String text = container.getFullPath().toString();
if (text!=null && !text.equals(getContainerName()))
containerText.setText(text);
for (int i=1; ; ++i) {
filename = fileType+"_" + i + ".bpmn"; //$NON-NLS-1$ //$NON-NLS-2$
IResource file = container.findMember(filename);
if (file==null) {
break;
}
}
}
String oldFileText = fileText.getText();
if (filename!=null && !filename.equals(oldFileText))
fileText.setText(filename);
}
private IContainer getFileContainer() {
if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
IStructuredSelection ssel = (IStructuredSelection) selection;
if (ssel.size() == 1) {
Object obj = ssel.getFirstElement();
if (obj instanceof IAdaptable) {
Object res = ((IAdaptable)obj).getAdapter(IResource.class);
if (res!=null)
obj = res;
}
if (obj instanceof Path) {
obj = ResourcesPlugin.getWorkspace().getRoot().findMember((Path)obj);
}
if (obj instanceof IResource) {
if (obj instanceof IContainer) {
return (IContainer) obj;
} else {
return ((IResource) obj).getParent();
}
}
}
}
return null;
}
@Override
public void setVisible(boolean visible) {
if (visible) {
updatePageDescription();
updateFilename();
}
super.setVisible(visible);
}
/**
* 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, Messages.BPMN2DiagramWizardPage2_Select_Folder_Title);
if (dialog.open() == Window.OK) {
Object[] result = dialog.getResult();
if (result.length == 1) {
selection = new TreeSelection(new TreePath(result));
containerText.setText(((Path) result[0]).toString());
}
}
}
/**
* Ensures that both text fields are set.
*/
private void dialogChanged(boolean initialize) {
boolean complete = false;
if (validateContainer()) {
diagramContainer = getFileContainer();
if (initialize) {
TargetRuntime rt = Bpmn2Preferences.getInstance(diagramContainer.getProject()).getRuntime();
String targetNamespace = rt.getRuntimeExtension().getTargetNamespace(getDiagramType());
if (targetNamespace==null)
targetNamespace = ""; //$NON-NLS-1$
if (rt!=TargetRuntime.getDefaultRuntime() && !targetNamespace.isEmpty()) {
// Target Runtime will provide its own target namespace
if (!targetNamespaceText.getText().equals(targetNamespace)) {
targetNamespaceText.setText(targetNamespace);
updateFilename();
}
}
else {
// The default "None" Target Runtime's target namespace may be edited by user.
String text = targetNamespaceText.getText();
if (text==null || text.isEmpty()) {
targetNamespaceText.setText(targetNamespace);
updateFilename();
}
}
}
if (validateFileName() && validateTargetNamespace()) {
updateStatus(null);
complete = true;
}
}
setPageComplete(complete);
}
private boolean validateContainer() {
IContainer container = getFileContainer();
if (container==null) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_No_Container);
return false;
}
if ((container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_No_Folder);
return false;
}
if (!container.isAccessible()) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_Container_Readonly);
return false;
}
return true;
}
private boolean validateFileName() {
if (!validateContainer())
return false;
IContainer container = getFileContainer();
String fileName = getFileName();
if (fileName.length() == 0) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_No_Filename);
return false;
}
if (fileName.replace('\\', '/').indexOf('/', 1) > 0) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_Filename_Invalid);
return false;
}
int dotLoc = fileName.lastIndexOf('.');
if (dotLoc != -1) {
String ext = fileName.substring(dotLoc + 1);
if (ext.equalsIgnoreCase("bpmn") == false && ext.equalsIgnoreCase("bpmn2") == false) { //$NON-NLS-1$ //$NON-NLS-2$
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_Extension_Invalid);
return false;
}
}
else {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_No_Extension);
return false;
}
IResource file = container.findMember(fileName);
if (file!=null) {
setErrorMessage(NLS.bind(Messages.BPMN2DiagramWizardPage2_Error_Duplicate_File,fileName));
return false;
}
return true;
}
private boolean validateTargetNamespace() {
String targetNamespace = targetNamespaceText.getText();
if (targetNamespace==null || targetNamespace.isEmpty()) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_No_TargetNamespace);
return false;
}
URI uri = URI.createURI(targetNamespace);
if (!(uri.hasAuthority() && uri.scheme()!=null)) {
setErrorMessage(Messages.BPMN2DiagramWizardPage2_Error_Invalid_TargetNamespace);
return false;
}
return true;
}
@Override
public boolean isPageComplete() {
return validateContainer() &&
validateFileName() &&
validateTargetNamespace();
}
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;
}
public String getTargetNamespace() {
return targetNamespaceText.getText();
}
}