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
*/
    private void setMessage(String messageString) {
        
        message = messageString == null ? "" : messageString; 
        if (messageLabel == null || messageLabel.isDisposed())
            return;
        messageLabel.setText(shortenText(message,messageLabel));
    }
    /**
     * Update the message label. Required if the monitor is forked.
     */
    private void update() {
        if (messageLabel == null || messageLabel.isDisposed())
            return;
        messageLabel.update();
    }
    /*
     *  (non-Javadoc)
     * @see org.eclipse.jface.window.Window#open()
     */
    public int open() {
        
        if (!getOpenOnRun()) {
            if (getNestingDepth() == 0)
                return OK;
        }
        return super.open();
    }
}