LogoWidgetView.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.
 */
package org.dashbuilder.client.navbar;

import javax.annotation.PostConstruct;

import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import org.dashbuilder.client.resources.i18n.AppConstants;
import org.gwtbootstrap3.client.ui.Label;

/**
 * The Logo banner for the application
 */
public class LogoWidgetView
        extends Composite
        implements LogoWidgetPresenter.View {

    private SimplePanel container = new SimplePanel();

    @PostConstruct
    public void init() {
        final RequestBuilder rb = new RequestBuilder( RequestBuilder.GET,
                                                      "banner/banner.html" );
        rb.setCallback( new RequestCallback() {
            @Override
            public void onResponseReceived( final Request request,
                                            final Response response ) {
                final HTMLPanel html = new HTMLPanel( response.getText() );
                container.setWidget( html );
            }

            @Override
            public void onError( final Request request,
                                 final Throwable exception ) {
                container.setWidget( new Label( AppConstants.INSTANCE.logoBannerError() ) );
            }
        } );
        try {
            rb.send();
        } catch ( RequestException re ) {
            container.setWidget( new Label( AppConstants.INSTANCE.logoBannerError() ) );
        }

        initWidget( container );
    }
}