/*
* Copyright 2011 JBoss Inc
*
* 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.jbpm.formbuilder.client;
import org.jbpm.formapi.client.CommonGlobals;
import org.jbpm.formapi.client.bus.ui.NotificationEvent;
import org.jbpm.formapi.client.bus.ui.NotificationEvent.Level;
import org.jbpm.formapi.shared.api.FormRepresentation;
import org.jbpm.formapi.shared.form.FormEncodingException;
import org.jbpm.formapi.shared.form.FormEncodingFactory;
import org.jbpm.formapi.shared.form.FormRepresentationEncoder;
import org.jbpm.formbuilder.client.bus.GetFormRepresentationEvent;
import org.jbpm.formbuilder.client.bus.GetFormRepresentationResponseEvent;
import org.jbpm.formbuilder.client.bus.GetFormRepresentationResponseHandler;
import org.jbpm.formbuilder.client.bus.UndoableEvent;
import org.jbpm.formbuilder.client.bus.UndoableHandler;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import com.google.gwt.event.shared.EventBus;
public class FormExporter {
private static final String EXPORT_TYPE = FormExporter.class.getName();
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
private final EventBus bus = CommonGlobals.getInstance().getEventBus();
public FormExporter() {
bus.addHandler(UndoableEvent.TYPE, new UndoableHandler() {
@Override
public void onEvent(UndoableEvent event) {
bus.fireEvent(new GetFormRepresentationEvent(EXPORT_TYPE));
}
@Override
public void doAction(UndoableEvent event) { }
@Override
public void undoAction(UndoableEvent event) { }
});
bus.addHandler(GetFormRepresentationResponseEvent.TYPE, new GetFormRepresentationResponseHandler() {
@Override
public void onEvent(GetFormRepresentationResponseEvent event) {
if (EXPORT_TYPE.equals(event.getSaveType())) {
exportForm(event.getRepresentation());
}
}
});
}
protected void exportForm(FormRepresentation form) {
FormRepresentationEncoder encoder = FormEncodingFactory.getEncoder();
try {
String formAsJson = encoder.encode(form);
setClientExportForm(formAsJson);
} catch (FormEncodingException e) {
bus.fireEvent(new NotificationEvent(Level.ERROR, i18n.CouldntExportAsJson(), e));
}
}
protected final native void start() /*-{
if (typeof($doc.clientExportForm) == 'undefined') {
$doc.clientExportForm = "";
} else if ($doc.clientExportForm == null) {
$doc.clientExportForm = "";
}
}-*/;
private final native void setClientExportForm(String formAsJson) /*-{
$doc.clientExportForm = formAsJson;
}-*/;
}