t.checked) {
              // Enable all transition events.
              c.setDispatchTransitionEvents(goog.ui.Component.State.ALL, true);
            } else {
              // Disable all transition events (except for HOVER, which is used
              // by containers internally).
              c.setDispatchTransitionEvents(goog.ui.Component.State.ALL, false);
              c.setDispatchTransitionEvents(goog.ui.Component.State.HOVER,
                  true);
            }
          });
          goog.log