Bug 66923 [typing]Can delete word (Ctrl-Backspace) on read only file
When you open read-only java file, all editing functions are disabled except deleting with Ctrl-Backspace and Ctrl-Del, then it is imposible to save this file. On simple text file it works ok - it blocks all edditing functions (including Ctrl-Backspace). I am using build 200406111814
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
}
	
	/**
	 * Tells whether this is the active editor in the active page.
	 *
	 * @return <code>true</code> if this is the active editor in the active page
	 * @see IWorkbenchPage#getActiveEditor();
	 */
	protected final boolean isActiveEditor() {
		IWorkbenchWindow window= getSite().getWorkbenchWindow();
		IWorkbenchPage page= window.getActivePage();
		if (page == null)
			return false;
		IEditorPart activeEditor= page.getActiveEditor();
		return activeEditor != null && activeEditor.equals(this);
	}
	
	/**
	 * Adds the given listener.
	 * Has no effect if an identical listener was not already registered.
	 * 
	 * @param listener	The reconcile listener to be added
	 * @since 3.0
	 */
	final void addReconcileListener(IJavaReconcilingListener listener) {
		synchronized (fReconcilingListeners) {
			fReconcilingListeners.add(listener);
		}
	}