package org.playframework.playclipse.wizards;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
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.events.SelectionListener;
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;
import org.eclipse.jdt.core.IJavaElement;
/**
* The "New" wizard page allows setting the container for the new file as well
* as the file name. The page will only accept file name without the extension
* OR with the extension that matches the expected one (java).
*/
public abstract class PlayWizardPage extends WizardPage {
protected Text containerText;
protected Text name;
protected ISelection selection;
protected IProject project;
protected abstract String description();
protected abstract String defaultName();
/**
* Constructor for SampleNewWizardPage.
*
* @param pageName
*/
public PlayWizardPage(ISelection selection) {
super("wizardPage");
setDescription(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("&Source folder:");
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("Controller &Name:");
name = new Text(container, SWT.BORDER | SWT.SINGLE);
gd = new GridData(GridData.FILL_HORIZONTAL);
name.setLayoutData(gd);
name.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
dialogChanged();
}
});
initialize();
dialogChanged();
setControl(container);
}
/**
* Tests if the current workbench selection is a suitable container to use.
*/
protected 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 IJavaElement) {
obj = ((IJavaElement)obj).getResource();
}
if (obj instanceof IResource) {
IContainer container;
if (obj instanceof IContainer) {
container = (IContainer) obj;
} else {
container = ((IResource) obj).getParent();
}
containerText.setText(container.getFullPath().toString());
while (container != null) {
if (container instanceof IProject) {
project = (IProject)container;
}
container = container.getParent();
}
}
}
name.setText(defaultName());
}
/**
* Uses the standard container selection dialog to choose the new value for
* the container field.
*/
protected void handleBrowse() {
ContainerSelectionDialog dialog = new ContainerSelectionDialog(
getShell(), ResourcesPlugin.getWorkspace().getRoot(), false,
"Select new file container");
if (dialog.open() == ContainerSelectionDialog.OK) {
Object[] result = dialog.getResult();
if (result.length == 1) {
containerText.setText(((Path) result[0]).toString());
}
}
}
/**
* Ensures that both text fields are set.
*/
protected void dialogChanged() {
IResource container = ResourcesPlugin.getWorkspace().getRoot()
.findMember(new Path(getContainerName()));
String fileName = getControllerName();
if (getContainerName().length() == 0) {
updateStatus("File container must be specified");
return;
}
if (container == null
|| (container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) {
updateStatus("File container must exist");
return;
}
if (!container.isAccessible()) {
updateStatus("Project must be writable");
return;
}
if (fileName.length() == 0) {
updateStatus("File name must be specified");
return;
}
if (fileName.replace('\\', '/').indexOf('/', 1) > 0) {
updateStatus("File name must be valid");
return;
}
updateStatus(null);
}
private void updateStatus(String message) {
setErrorMessage(message);
setPageComplete(message == null);
}
public Map<String, String> getParameters() {
Map<String, String> result = new HashMap<String, String>();
result.put("name", name.getText());
result.put("container", containerText.getText());
return result;
}
private String getContainerName() {
return containerText.getText();
}
private String getControllerName() {
return name.getText();
}
}