com.fullmetalgalaxy.client.widget.HTMLInclude.java Source code

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Here is the source code for com.fullmetalgalaxy.client.widget.HTMLInclude.java

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/* *********************************************************************
 *
 *  This file is part of Full Metal Galaxy.
 *  http://www.fullmetalgalaxy.com
 *
 *  Full Metal Galaxy is free software: you can redistribute it and/or 
 *  modify it under the terms of the GNU Affero General Public License
 *  as published by the Free Software Foundation, either version 3 of 
 *  the License, or (at your option) any later version.
 *
 *  Full Metal Galaxy is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public 
 *  License along with Full Metal Galaxy.  
 *  If not, see <http://www.gnu.org/licenses/>.
 *
 *  Copyright 2010 to 2015 Vincent Legendre
 *
 * *********************************************************************/
package com.fullmetalgalaxy.client.widget;

import com.google.gwt.core.client.GWT;
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.HTML;

/**
 * Renders the contents of an HTML file as a widget.
 * HTMLInclude is a simple subclass of the GWT provided
 * HTML widget, the difference being that you provide a URL
 * to the content in the constructor instead of supplying
 * the actual content in your code. The intended purpose is
 * to keep code clean by keeping verbose HTML content
 * out of the Java source and in seperate HTML files that
 * can be included at run time.
 * 
 * @author rhanson
 */
public class HTMLInclude extends HTML {
    public HTMLInclude(final String url) {
        super();
        final HTMLInclude widget = this;
        try {
            new RequestBuilder(RequestBuilder.GET, url).sendRequest("", new RequestCallback() {
                @Override
                public void onError(Request request, Throwable exception) {
                    GWT.log("HTMLInclude: error fetching " + url, exception);
                }

                @Override
                public void onResponseReceived(Request request, Response response) {
                    if (response.getStatusCode() == 200) {
                        widget.setHTML(response.getText());
                    } else {
                        GWT.log("HTMLInclude: bad code when fetching " + url + "[" + response.getStatusCode() + "]",
                                null);
                    }
                }
            });
        } catch (RequestException e) {
            GWT.log("HTMLInclude: exception thrown fetching " + url, e);
        }
    }
}