_layout/Window-class.html">Window</a></li>
            <li class="self-crumb">animationStartEvent</li>
        </ol>
        <div class="title-description">
            <h1 class="title">
                <div class="kind">constant</div> animationStartEvent
            </h1>
            <!-- p class="subtitle">
                Static factory designed to expose <code class="prettyprint lang-dart">animationstart</code> events to event
handlers that are not necessarily instances of <a href="polymer_app_layout/W