/*
* 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.command;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jbpm.formapi.client.CommonGlobals;
import org.jbpm.formapi.client.FormBuilderException;
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.formbuilder.client.FormBuilderGlobals;
import org.jbpm.formbuilder.client.FormBuilderService;
import org.jbpm.formbuilder.client.bus.LoadServerFormEvent;
import org.jbpm.formbuilder.client.bus.LoadServerFormHandler;
import org.jbpm.formbuilder.client.bus.LoadServerFormResponseEvent;
import org.jbpm.formbuilder.client.bus.LoadServerFormResponseHandler;
import org.jbpm.formbuilder.client.bus.ui.UpdateFormViewEvent;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.MenuItem;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.gwtent.reflection.client.Reflectable;
/**
* Handles the action of loading a form
*/
@Reflectable
public class LoadFormCommand implements BaseCommand {
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
private final EventBus bus = CommonGlobals.getInstance().getEventBus();
private final FormBuilderService service = FormBuilderGlobals.getInstance().getService();
public LoadFormCommand() {
bus.addHandler(LoadServerFormEvent.TYPE, new LoadServerFormHandler() {
@Override
public void onEvent(LoadServerFormEvent event) {
String formName = event.getFormName();
if (formName != null) {
try {
service.getForm(formName);
} catch (FormBuilderException e) {
bus.fireEvent(new NotificationEvent(Level.ERROR, i18n.CouldntLoadForm(formName), e));
}
} else {
try {
service.getForms();
} catch (FormBuilderException e) {
bus.fireEvent(new NotificationEvent(Level.ERROR, i18n.CouldntLoadAllForms(), e));
}
}
}
});
bus.addHandler(LoadServerFormResponseEvent.TYPE, new LoadServerFormResponseHandler() {
@Override
public void onListForms(LoadServerFormResponseEvent event) {
popupFormSelection(event.getList());
}
@Override
public void onGetForm(LoadServerFormResponseEvent event) {
populateFormView(event.getForm());
}
});
}
private void populateFormView(FormRepresentation form) {
bus.fireEvent(new UpdateFormViewEvent(form));
}
private void popupFormSelection(List<FormRepresentation> forms) {
final Map<String, FormRepresentation> formMap = new HashMap<String, FormRepresentation>();
final ListBox names = new ListBox();
for (FormRepresentation form : forms) {
names.addItem(form.getName());
formMap.put(form.getName(), form);
}
final PopupPanel panel = new PopupPanel(false, true);
VerticalPanel vPanel = new VerticalPanel();
HorizontalPanel selectPanel = new HorizontalPanel();
selectPanel.add(new Label(i18n.SelectAFormLabel()));
selectPanel.add(names);
vPanel.add(selectPanel);
HorizontalPanel buttonPanel = new HorizontalPanel();
Button loadButton = new Button(i18n.LoadButton());
loadButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
String formName = names.getValue(names.getSelectedIndex());
populateFormView(formMap.get(formName));
panel.hide();
}
});
Button cancelButton = new Button(i18n.CancelButton());
cancelButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
panel.hide();
}
});
buttonPanel.add(new HTML(" "));
buttonPanel.add(loadButton);
buttonPanel.add(cancelButton);
vPanel.add(buttonPanel);
panel.add(vPanel);
panel.setPopupPosition(
RootPanel.getBodyElement().getClientWidth() / 2 - 150,
RootPanel.getBodyElement().getClientHeight() / 2 - 150);
panel.show();
}
@Override
public void execute() {
bus.fireEvent(new LoadServerFormEvent());
}
private MenuItem item = null;
@Override
public void setItem(MenuItem item) {
this.item = item;
item.setEnabled(true);
}
@Override
public void setEmbeded(String profile) {
//if embedded loading another form shouldn't be available
if (item != null) {
item.getParentMenu().removeItem(item);
}
}
}