001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     troger
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.annotations.gwt.client;
023
024import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.WebConfiguration;
025import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.WebConfigurationService;
026import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.WebConfigurationServiceAsync;
027
028import com.allen_sauer.gwt.log.client.Log;
029import com.google.gwt.core.client.EntryPoint;
030import com.google.gwt.core.client.GWT;
031import com.google.gwt.user.client.Window;
032import com.google.gwt.user.client.rpc.AsyncCallback;
033
034/**
035 * @author <a href="mailto:[email protected]">Thomas Roger</a>
036 */
037public class AnnotationModule implements EntryPoint {
038
039    private WebConfigurationServiceAsync webConfigurationService;
040
041    private WebConfiguration webConfiguration;
042
043    public void onModuleLoad() {
044        fixXMLHttpRequest();
045        webConfigurationService = GWT.create(WebConfigurationService.class);
046        String url = Window.Location.getHref();
047        webConfigurationService.getWebConfiguration(url, new AsyncCallback<WebConfiguration>() {
048            public void onFailure(Throwable throwable) {
049                Log.debug("onFailure: " + throwable);
050                webConfiguration = WebConfiguration.DEFAULT_WEB_CONFIGURATION;
051                initModule();
052            }
053
054            public void onSuccess(WebConfiguration result) {
055                webConfiguration = result == null ? WebConfiguration.DEFAULT_WEB_CONFIGURATION : result;
056                initModule();
057                Log.debug("Module initialization finished.");
058            }
059        });
060    }
061
062    private void initModule() {
063        AnnotationApplication.build(webConfiguration);
064    }
065
066    // Fix XMLHttpRequest when using Annotations module on IE6.
067    // XMLHttpRequest is defined in $wnd, but not in window (due to sarrisa
068    // librairy use in ajax4jsf) so GWT can't instantiate a XMLHttpRequest object.
069    private native void fixXMLHttpRequest() /*-{
070                                            if ($wnd.XMLHttpRequest && !window.XMLHttpRequest) {
071                                            window.XMLHttpRequest = $wnd.XMLHttpRequest;
072                                            }
073                                            }-*/;
074
075}