my.app.main.client.activity.LeftMenuActivity.java Source code

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/*******************************************************************************
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * 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.
 *******************************************************************************/
package my.app.main.client.activity;

import my.app.main.client.ClientFactory;
import my.app.main.client.entity.StudentInfo;
import my.app.main.client.service.GetCurrentUser;
import my.app.main.client.ui.LeftMenu;

import com.google.gwt.activity.shared.AbstractActivity;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.place.shared.Place;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.AcceptsOneWidget;

/**
 * Activities are started and stopped by an ActivityManager associated with a
 * container Widget.
 */
public class LeftMenuActivity extends AbstractActivity implements LeftMenu.Presenter {
    /**
     * Used to obtain views, eventBus, placeController. Alternatively, could be
     * injected via GIN.
     */
    private ClientFactory clientFactory;

    /**
     * Sample property.
     */
    private String name;

    public LeftMenuActivity(ClientFactory clientFactory) {
        this.clientFactory = clientFactory;
    }

    @Override
    public void start(AcceptsOneWidget containerWidget, EventBus eventBus) {
        final LeftMenu view = clientFactory.getLeftMenu();
        view.setName(name);

        GetCurrentUser.Util.getInstance().getStudentInfo(new AsyncCallback<StudentInfo>() {

            @Override
            public void onSuccess(StudentInfo result) {
                view.setInfo(result);
            }

            @Override
            public void onFailure(Throwable caught) {
                Window.alert(caught.getMessage());
            }
        });
        view.setPresenter(this);
        containerWidget.setWidget(view.asWidget());
    }

    /**
     * @see LeftMenu.Presenter#goTo(Place)
     */
    public void goTo(Place place) {
        clientFactory.getPlaceController().goTo(place);
    }
}