Bug 93674 [Dialogs] ProgressMonitorDialog not cancellable when fork is set to false
Overview Description: Invoking the ProgressMonitorDialog::run(boolean fork, boolean cancelable, IRunnableWithProgress runnable) method with the fork parameter set to false, the user can't cancel the running dialog -even if the cancelable parameter is set to true. Steps to Reproduce: Simply launch a ProgressMonitorDialog and invoke its run method with fork parameter == false and cancelable parameter == true Actual Results: The Cancel button is not responsive to user clicks and the IProgressMonitor::isCanceled() will always regardless. Expected Results: When the suer clicks the Cancel button on the dialog, calling IProgressMonitor::isCanceled() should return true so that the executing IRunnableWithProgress can have a chance to honour the user's request and exit.
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
private Button backButton;
    private Button nextButton;
    private Button finishButton;
    private Button cancelButton;
    private Button helpButton;
    private SelectionAdapter cancelListener;
    private boolean isMovingToPreviousPage = false;
    private Composite pageContainer;
    private PageContainerFillLayout pageContainerLayout = new PageContainerFillLayout(
            5, 5, 300, 225);
    private int pageWidth = SWT.DEFAULT;
    private int pageHeight = SWT.DEFAULT;
    private static final String FOCUS_CONTROL = "focusControl"; 
    private boolean lockedUI = false;
	
    private ListenerList pageChangedListeners = new ListenerList(3);
    /**
     * A layout for a container which includes several pages, like
     * a notebook, wizard, or preference dialog. The size computed by
     * this layout is the maximum width and height of all pages currently
     * inserted into the container.
     */
    protected class PageContainerFillLayout extends Layout {
        /**
         * The margin width; <code>5</code> pixels by default.
         */
        public int marginWidth = 5;
        /**
         * The margin height; <code>5</code> pixels by default.
         */