/*
* 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 java.util.ArrayList;
import java.util.List;
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.client.form.FormEncodingClientFactory;
import org.jbpm.formapi.shared.api.FormRepresentation;
import org.jbpm.formapi.shared.form.FormEncodingFactory;
import org.jbpm.formbuilder.client.bus.ui.EmbededIOReferenceEvent;
import org.jbpm.formbuilder.client.bus.ui.NotificationsVisibleEvent;
import org.jbpm.formbuilder.client.bus.ui.NotificationsVisibleHandler;
import org.jbpm.formbuilder.client.bus.ui.RepresentationFactoryPopulatedEvent;
import org.jbpm.formbuilder.client.bus.ui.RepresentationFactoryPopulatedHandler;
import org.jbpm.formbuilder.client.bus.ui.UpdateFormViewEvent;
import org.jbpm.formbuilder.client.bus.ui.UserIsLoggedOutEvent;
import org.jbpm.formbuilder.client.bus.ui.UserIsLoggedOutHandler;
import org.jbpm.formbuilder.client.command.DisposeDropController;
import org.jbpm.formbuilder.client.edition.EditionViewImpl;
import org.jbpm.formbuilder.client.layout.LayoutViewImpl;
import org.jbpm.formbuilder.client.menu.AnimatedMenuViewImpl;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import org.jbpm.formbuilder.client.notification.CompactNotificationsViewImpl;
import org.jbpm.formbuilder.client.options.OptionsViewImpl;
import org.jbpm.formbuilder.client.tasks.IoAssociationViewImpl;
import org.jbpm.formbuilder.client.toolbar.ToolBarViewImpl;
import org.jbpm.formbuilder.client.tree.TreeViewImpl;
import com.allen_sauer.gwt.dnd.client.PickupDragController;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.GWT.UncaughtExceptionHandler;
import com.google.gwt.dom.client.Style.Visibility;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.event.shared.GwtEvent;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.RootPanel;
public class FormBuilderController {
private final EventBus bus = CommonGlobals.getInstance().getEventBus();
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
private final FormBuilderService model = FormBuilderGlobals.getInstance().getService();
private final FormBuilderView view;
private final FormExporter formExporter;
/**
* Initiates gwt-dnd drag controller and sub views and presenters
* @param fbModel
* @param fbView
*/
public FormBuilderController(final RootPanel rootPanel, FormBuilderView fbView) {
super();
this.view = fbView;
GWT.setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
@Override
public void onUncaughtException(Throwable exception) {
bus.fireEvent(new NotificationEvent(Level.ERROR, i18n.ErrorInTheUI(), exception));
}
});
bus.addHandler(UserIsLoggedOutEvent.TYPE, new UserIsLoggedOutHandler() {
@Override
public void onEvent(UserIsLoggedOutEvent event) {
Window.alert("User is login timeout");
Window.Location.reload();
}
});
new HistoryPresenter();
RoleUtils.getInstance();
FormEncodingFactory.register(FormEncodingClientFactory.getEncoder(), FormEncodingClientFactory.getDecoder());
PickupDragController dragController = new PickupDragController(view, true);
dragController.registerDropController(new DisposeDropController(view));
CommonGlobals.getInstance().registerDragController(dragController);
this.formExporter = new FormExporter();
this.formExporter.start();
view.setNotificationsView(new CompactNotificationsViewImpl());
view.setMenuView(new AnimatedMenuViewImpl());
view.setEditionView(new EditionViewImpl());
view.setTreeView(new TreeViewImpl());
view.setLayoutView(new LayoutViewImpl());
view.setOptionsView(new OptionsViewImpl());
view.setIoAssociationView(new IoAssociationViewImpl());
view.setToolBarView(new ToolBarViewImpl());
bus.addHandler(RepresentationFactoryPopulatedEvent.TYPE, new RepresentationFactoryPopulatedHandler() {
@Override
public void onEvent(RepresentationFactoryPopulatedEvent event) {
try {
model.getMenuItems();
model.getMenuOptions();
} catch (FormBuilderException e) {
//implementation never throws this
}
List<GwtEvent<?>> events = setDataPanel(rootPanel);
setViewPanel(rootPanel);
//events are fired deferred since they might need that ui components are already attached
fireEvents(events);
}
});
bus.addHandler(NotificationsVisibleEvent.TYPE, new NotificationsVisibleHandler() {
@Override
public void onEvent(NotificationsVisibleEvent event) {
view.toggleNotifications(event.isVisible());
}
});
populateRepresentationFactory(model);
}
private void fireEvents(List<GwtEvent<?>> events) {
if (events != null) {
for (GwtEvent<?> event : events) {
bus.fireEvent(event);
}
}
}
private List<GwtEvent<?>> setDataPanel(RootPanel rootPanel) {
List<GwtEvent<?>> retval = new ArrayList<GwtEvent<?>>();
String innerHTML = rootPanel.getElement().getInnerHTML();
if (innerHTML != null && !"".equals(innerHTML)) {
try {
JsonLoadInput input = JsonLoadInput.parse(innerHTML);
if (input != null) {
if (input.getForm() != null) {
if (input.getPackage() != null && !"".equals(input.getPackage())) {
model.setPackageName(input.getPackage());
}
retval.add(new UpdateFormViewEvent(input.getForm()));
if (input.getTask() == null && hasTaskAssigned(input.getForm())) {
model.selectIoAssociation(input.getPackage(), input.getForm().getProcessName(), input.getForm().getTaskId());
}
}
retval.add(new EmbededIOReferenceEvent(input.getTask(), input.getProfile()));
}
} catch (Exception e) {
GWT.log("Problem parsing init content", e);
}
}
return retval;
}
private boolean hasTaskAssigned(FormRepresentation form) {
boolean notNull = form != null && form.getProcessName() != null && form.getTaskId() != null;
return notNull && !"".equals(form.getProcessName().trim()) && !"".equals(form.getTaskId().trim());
}
private void setViewPanel(RootPanel rootPanel) {
rootPanel.getElement().setInnerHTML("");
rootPanel.getElement().getStyle().setVisibility(Visibility.VISIBLE);
rootPanel.add(view);
}
private void populateRepresentationFactory(FormBuilderService model) {
try {
model.populateRepresentationFactory();
} catch (FormBuilderException e) {
bus.fireEvent(new NotificationEvent(Level.ERROR, i18n.ProblemLoadingRepresentationFactory(), e));
}
}
}