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package org.openembedded.bc.ui.wizards;
import java.util.Map;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
public abstract class FiniteStateWizardPage extends WizardPage {
protected Map model = null;
protected FiniteStateWizard wizard = null;
private static boolean previousState = false;
/**
* @param pageName
*/
protected FiniteStateWizardPage(String name, Map model) {
super(name);
this.model = model;
this.setPageComplete(false);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
*/
public abstract void createControl(Composite parent);
protected void setModelWizard() {
if (wizard == null) {
wizard = (FiniteStateWizard)FiniteStateWizardPage.this.getWizard();
}
}
/**
* Add page validation logic here. Returning <code>true</code> means that
* the page is complete and the user can go to the next page.
*
* @return
*/
protected abstract boolean validatePage();
/**
* This method should be implemented by ModelWizardPage classes. This method
* is called after the <code>validatePage()</code> returns successfully.
* Update the model with the contents of the controls on the page.
*/
protected abstract void updateModel();
/**
* Helper method to see if a field has some sort of text in it.
* @param value
* @return
*/
protected boolean hasContents(String value) {
if (value == null || value.length() == 0) {
return false;
}
return true;
}
/**
* This method is called right before a page is displayed.
* This occurs on user action (Next/Back buttons).
*/
public abstract void pageDisplay();
/**
* This method is called on the concrete WizardPage after the user has
* gone to the page after.
*/
public abstract void pageCleanup();
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.IDialogPage#setVisible(boolean)
*/
public void setVisible(boolean arg0) {
if (!arg0 && previousState) {
pageCleanup();
} else if (arg0 && !previousState) {
pageDisplay();
} else if (arg0 && previousState) {
pageDisplay();
}
previousState = arg0;
super.setVisible(arg0);
}
public class ValidationListener implements SelectionListener, ModifyListener, Listener, ISelectionChangedListener {
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
*/
public void widgetSelected(SelectionEvent e) {
validate();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
*/
public void widgetDefaultSelected(SelectionEvent e) {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events.ModifyEvent)
*/
public void modifyText(ModifyEvent e) {
validate();
}
public void validate() {
if (validatePage()) {
updateModel();
setPageComplete(true);
return;
}
setPageComplete(false);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
*/
public void handleEvent(Event event) {
validate();
}
public void selectionChanged(SelectionChangedEvent event) {
validate();
}
}
}
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