Wizard as a Dialog

In an RCP application, I had these requirements for a Dialog box:

• OK button should not be enabled until all the mandatory fields are filled
  
• Hints for probably incorrect data (The email id grprakash+eclipse@gmail.com "looks" like a wrong one) These should not stop the user from pressing OK
• Progress bar should be shown for long running operations (clicking OK, "check for user id availability", etc)

I was thinking on how to handle all these in a Dialog and something flashed in my mind - JFace Wizards. All the above requirements can be easily done if I use a Wizard. The Finish button is disabled when we call setPageComplete(false), we can show warnings and still allow the user to finish and by calling setNeedsProgressMonitor() & getContainer().run() we can show the progress bar in the UI as well. But there are two small issues to be handled when we use the wizard.

• The first one is to get rid of the Back and Next buttons. We are lucky here because JFace will not show those buttons if there is only one page in the wizard
  
• The "Finish" looks odd and should be renamed to "OK" or "Submit. This can be done by subclassing the WizardDialog:
  

WizardDialog dialog = new WizardDialog(shell, wizard) {

@Override
protected void createButtonsForButtonBar(Composite parent) {
super.createButtonsForButtonBar(parent);
Button finishButton = getButton(IDialogConstants.FINISH_ID);
finishButton.setText(IDialogConstants.OK_LABEL);
}
};

Now with the util method, I can enable/disable the "OK" button, reflecting the status of the UI items.

Related:
Util method for Wizard Pages
JFace Wizard Guidelines