NestedListItemTapHandler.java is part of Touch4j 4.2.2.1  Copyright 2013 Emitrom LLC

  Licensed under the Apache License, Version 2.0 (the "License");

  you may not use this file except in compliance with the License.

  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software

  distributed under the License is distributed on an "AS IS" BASIS,

  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  See the License for the specific language governing permissions and

  limitations under the License.

**************************************************************************/

    final JavaScriptObject jsoPeer = createPeer(this);

    private static native JavaScriptObject createPeer(NestedListItemTapHandler listener) /*-{

    return function(source, list, index, target, record, event, eOpts) {

      var nestedList = @com.emitrom.touch4j.client.ui.NestedListDataView::new(Lcom/google/gwt/core/client/JavaScriptObject;)(source);

      var model = @com.emitrom.touch4j.client.data.BaseModel::new(Lcom/google/gwt/core/client/JavaScriptObject;)(record);

      var listJso = @com.emitrom.touch4j.client.ui.ListDataView::new(Lcom/google/gwt/core/client/JavaScriptObject;)(list);

      var eventObject = @com.emitrom.touch4j.client.core.EventObject::new(Lcom/google/gwt/core/client/JavaScriptObject;)(event);

      listener.@com.emitrom.touch4j.client.core.handlers.nestedlist.NestedListItemTapHandler::fireOnEvent(Lcom/emitrom/touch4j/client/ui/NestedListDataView;Lcom/emitrom/touch4j/client/ui/ListDataView;ILcom/google/gwt/dom/client/Element;Lcom/emitrom/touch4j/client/data/BaseModel;Lcom/emitrom/touch4j/client/core/EventObject;Ljava/lang/Object;)(nestedList, listJso, index, target, model, eventObject, eOpts);

    };

    }-*/;

    // Called from JSNI

    private final void fireOnEvent(NestedListDataView nestedList, ListDataView list, int index, Element target,

                    BaseModel record, EventObject event, Object eOpts) {

        UncaughtExceptionHandler handler = GWT.getUncaughtExceptionHandler();

        if (handler != null) {

            fireOnEventAndCatch(nestedList, list, index, target, record, event, eOpts, handler);

        } else {

            onItemTap(nestedList, list, index, target, record, event, eOpts);

        }

    }

    private void fireOnEventAndCatch(NestedListDataView nestedList, ListDataView list, int index, Element target,

                    BaseModel record, EventObject event, Object eOpts, UncaughtExceptionHandler handler) {

        try {

            onItemTap(nestedList, list, index, target, record, event, eOpts);

        } catch (Throwable e) {

            handler.onUncaughtException(e);

        }

    }

    @Override

    public JavaScriptObject getJsoPeer() {

        return jsoPeer;

    }

    public abstract void onItemTap(NestedListDataView nestedList, ListDataView list, int index, Element target,

                    BaseModel record, EventObject event, Object eOpts);