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
* @see org.eclipse.jface.dialog.IPageChangeProvider#removePageChangedListener()
    */
	public void removePageChangedListener(IPageChangedListener listener) {
		pageChangedListeners.remove(listener);		
	}
 
	/**
     * Notifies any selection changed listeners that the selected page
     * has changed.
     * Only listeners registered at the time this method is called are notified.
     *
     * @param event a selection changed event
     *
     * @see IPageChangedListener#pageChanged
     * 
     * @since 3.1
     */
    protected void firePageChanged(final PageChangedEvent event) {
        Object[] listeners = pageChangedListeners.getListeners();
        for (int i = 0; i < listeners.length; ++i) {
            final IPageChangedListener l = (IPageChangedListener) listeners[i];
            SafeRunnable.run(new SafeRunnable() {
                public void run() {
                    l.pageChanged(event);
                }
            });
        }
    }
}