itable">
        read-only
    </div>
    Stream of <code class="prettyprint lang-dart">enter</code> events handled by this <code class="prettyprint lang-dart">TextTrackCue</code>.
            </dd>
            <dt id="onExit" class="property">
                <span class="top-level-variable-type">Stream&lt;<a href="dart-html/Event-class.html">Event</a>&gt;</span>
                <a href="polymer_app_layout/TextTrackCue/onExit.html">onExit</a>
            </dt>
            <dd>
                <div class="r