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/dialogs/ProgressMonitorDialog.java
setBlockOnOpen(false);
    }
    /**
     * Enables the cancel button (asynchronously).
     * @param b The state to set the button to.
     */
    private void asyncSetOperationCancelButtonEnabled(final boolean b) {
        if (getShell() != null) {
            getShell().getDisplay().asyncExec(new Runnable() {
                public void run() {
                    setOperationCancelButtonEnabled(b);
                }
            });
        }
    }
    /**
     * The cancel button has been pressed.
     * 
     * @since 3.0
     */
    protected void cancelPressed() {
        
        
        
        
        cancel.setEnabled(false);
        progressMonitor.setCanceled(true);
        super.cancelPressed();
    }
    /*