First, changing the text on a button. You need to subclass WizardDialog and override createButtonsForButtonBar():
@Override
protected void createButtonsForButtonBar(Composite parent) {
super.createButtonsForButtonBar(parent);
Button finishButton = getButton(IDialogConstants.FINISH_ID);
finishButton.setText("Submit");
}
What about getting notified when the page changes (i.e. the user clicked the Next or Back buttons)? In your Wizard's addPages() method, you can add the necessary listeners:
public class MyWizard extends Wizard implements IPageChangingListener, IPageChangedListener {
@Override
public void addPages() {
// add pages here ...
this.addPage(new MyPage());
WizardDialog dialog = (WizardDialog)getContainer();
dialog.addPageChangingListener(this);
dialog.addPageChangedListener(this);
}
@Override
public void pageChanged(PageChangedEvent event) {
// ...
}
@Override
public void handlePageChanging(PageChangingEvent event) {
// ...
}
}Disabling the back button is harder than it should be, due to non-intuitive behavior in the default implementation of WizardPage.getPreviousPage(). You can call setPreviousPage( null ), and getPreviousPage() still returns the previous page. You need to override the implementation of getPreviousPage() in order to disable the back button:
public abstract class MyWizardPage extends WizardPage {
private boolean backButtonEnabled = true;
public void setBackButtonEnabled(boolean enabled) {
backButtonEnabled = enabled;
getContainer().updateButtons();
}
@Override
public IWizardPage getPreviousPage() {
if (!backButtonEnabled) {
return null;
}
return super.getPreviousPage();
}
}
Finally, if you want to choose when to enable the Finish button, you will probably be overriding the canFinish() method on your Wizard subclass. I did this, but made the mistake of creating my own canFinish boolean field. This shadowed a field of the same name in the parent class -- as a result, I could never get my Finish button to become enabled! Changing the field name to myCanFinish fixed the issue.
