/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.bpm.console.client.task;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Button;
import com.mvc4g.client.Controller;
import com.mvc4g.client.Event;
import org.gwt.mosaic.ui.client.ListBox;
import org.gwt.mosaic.ui.client.MessageBox;
import org.gwt.mosaic.ui.client.ToolBar;
import org.gwt.mosaic.ui.client.event.RowSelectionEvent;
import org.gwt.mosaic.ui.client.event.RowSelectionHandler;
import org.gwt.mosaic.ui.client.layout.*;
import org.gwt.mosaic.ui.client.list.DefaultListModel;
import org.jboss.bpm.console.client.ApplicationContext;
import org.jboss.bpm.console.client.ServerPlugins;
import org.jboss.bpm.console.client.common.*;
import org.jboss.bpm.console.client.model.TaskRef;
import org.jboss.bpm.console.client.task.events.DetailViewEvent;
import org.jboss.bpm.console.client.task.events.TaskIdentityEvent;
import org.jboss.bpm.console.client.util.SimpleDateFormat;
import org.jboss.errai.bus.client.ErraiBus;
import org.jboss.errai.bus.client.api.Message;
import org.jboss.errai.bus.client.api.MessageCallback;
import org.jboss.errai.workspaces.client.api.WidgetProvider;
import org.jboss.errai.workspaces.client.api.ProvisioningCallback;
import org.jboss.errai.workspaces.client.framework.Registry;
import java.util.List;
/**
* @author Heiko.Braun <heiko.braun@jboss.com>
*/
public class AssignedTasksView extends AbstractTaskList implements WidgetProvider, DataDriven
{
public final static String ID = AssignedTasksView.class.getName();
private final ApplicationContext appContext;
private IFrameWindowPanel iframeWindow = null;
private TaskDetailView detailsView;
private SimpleDateFormat dateFormat = new SimpleDateFormat();
private boolean hasDispatcherPlugin;
private PagingPanel pagingPanel;
private MosaicPanel panel;
public AssignedTasksView()
{
controller = Registry.get(Controller.class);
appContext = Registry.get(ApplicationContext.class);
}
public void provideWidget(ProvisioningCallback callback)
{
panel = new MosaicPanel(new BorderLayout());
initialize();
panel.add(taskList, new BorderLayoutData(BorderLayout.Region.CENTER));
panel.add(detailsView, new BorderLayoutData(BorderLayout.Region.SOUTH, 10 , 200));
controller.addView(AssignedTasksView.ID, this);
callback.onSuccess(panel);
}
public void initialize()
{
if(!isInitialized)
{
// workaround
OpenTasksView.registerCommonActions(controller);
taskList = new MosaicPanel( new BoxLayout(BoxLayout.Orientation.VERTICAL));
taskList.setPadding(0);
taskList.setWidgetSpacing(0);
listBox =
new ListBox<TaskRef>(
new String[] {
"Priority", "Process", "Task Name", "Due Date"
}
);
listBox.setCellRenderer(new ListBox.CellRenderer<TaskRef>() {
public void renderCell(ListBox<TaskRef> listBox, int row, int column,
TaskRef item) {
switch (column) {
case 0:
listBox.setText(row, column, String.valueOf(item.getPriority()));
break;
case 1:
listBox.setText(row, column, item.getProcessId());
break;
case 2:
listBox.setText(row, column, item.getName());
break;
case 3:
String d = item.getDueDate() != null ? dateFormat.format(item.getDueDate()):"";
listBox.setText(row, column, d);
break;
default:
throw new RuntimeException("Unexpected column size");
}
}
});
listBox.addRowSelectionHandler(
new RowSelectionHandler()
{
public void onRowSelection(RowSelectionEvent rowSelectionEvent)
{
TaskRef task = getSelection(); // first call always null?
if(task!=null)
{
controller.handleEvent(
new Event(UpdateDetailsAction.ID, new DetailViewEvent("AssignedDetailView", task))
);
}
}
}
);
// toolbar
final MosaicPanel toolBox = new MosaicPanel();
toolBox.setPadding(0);
toolBox.setWidgetSpacing(5);
//toolBox.setLayout(new BoxLayout(BoxLayout.Orientation.VERTICAL));
final ToolBar toolBar = new ToolBar();
toolBar.add(
new Button("Refresh", new ClickHandler() {
public void onClick(ClickEvent clickEvent)
{
reload();
}
}
)
);
Button viewBtn = new Button("View", new ClickHandler()
{
public void onClick(ClickEvent clickEvent)
{
TaskRef selection = getSelection();
if (selection != null)
{
if (selection.getUrl() != null && !selection.getUrl().equals(""))
{
iframeWindow = new IFrameWindowPanel(
selection.getUrl(), "Task Form: "+selection.getName()
);
iframeWindow.setCallback(
new IFrameWindowCallback()
{
public void onWindowClosed()
{
reload();
}
}
);
iframeWindow.show();
}
else
{
MessageBox.alert("Invalid operation", "The task doesn't provide a UI");
}
}
else
{
MessageBox.alert("Missing selection", "Please select a task");
}
}
}
);
toolBar.add(viewBtn);
toolBar.add(
new Button("Release", new ClickHandler() {
public void onClick(ClickEvent clickEvent)
{
TaskRef selection = getSelection();
if(selection!=null)
{
TaskIdentityEvent payload = new TaskIdentityEvent(
null, selection
);
controller.handleEvent(
new Event(ReleaseTaskAction.ID, payload)
);
}
else
{
MessageBox.alert("Missing selection", "Please select a task");
}
}
}
)
);
toolBox.add(toolBar, new BoxLayoutData(BoxLayoutData.FillStyle.HORIZONTAL));
this.taskList.add(toolBox, new BoxLayoutData(BoxLayoutData.FillStyle.HORIZONTAL));
this.taskList.add(listBox, new BoxLayoutData(BoxLayoutData.FillStyle.BOTH));
pagingPanel = new PagingPanel(
new PagingCallback()
{
public void rev()
{
renderUpdate();
}
public void ffw()
{
renderUpdate();
}
}
);
this.taskList.add(pagingPanel, new BoxLayoutData(BoxLayoutData.FillStyle.HORIZONTAL));
detailsView = new TaskDetailView(false);
controller.addView("AssignedDetailView", detailsView);
detailsView.initialize();
// plugin availability
this.hasDispatcherPlugin =
ServerPlugins.has("org.jboss.bpm.console.server.plugin.FormDispatcherPlugin");
viewBtn.setEnabled(hasDispatcherPlugin);
// deployments model listener
ErraiBus.get().subscribe(Model.SUBJECT,
new MessageCallback()
{
public void callback(Message message)
{
switch (ModelCommands.valueOf(message.getCommandType()))
{
case HAS_BEEN_UPDATED:
if(message.get(String.class, ModelParts.CLASS).equals(Model.PROCESS_MODEL))
reload();
break;
}
}
});
Timer t = new Timer()
{
@Override
public void run()
{
// force loading
reload();
}
};
t.schedule(500);
isInitialized = true;
}
}
private void reload()
{
// force loading
controller.handleEvent(
new Event(LoadTasksAction.ID, appContext.getAuthentication().getUsername())
);
}
public void reset()
{
final DefaultListModel<TaskRef> model =
(DefaultListModel<TaskRef>) listBox.getModel();
model.clear();
// clear details
controller.handleEvent(
new Event(UpdateDetailsAction.ID, new DetailViewEvent("AssignedDetailView", null))
);
}
public void update(Object... data)
{
this.identity = (String)data[0];
this.cachedTasks = (List<TaskRef>)data[1];
pagingPanel.reset();
renderUpdate();
}
public void setLoading(boolean isLoading)
{
if(panel.isVisible())
LoadingOverlay.on(taskList, isLoading);
}
private void renderUpdate()
{
// lazy init
initialize();
reset();
final DefaultListModel<TaskRef> model =
(DefaultListModel<TaskRef>) listBox.getModel();
List<TaskRef> trimmed = pagingPanel.trim(cachedTasks);
for(TaskRef task : trimmed)
{
if(TaskRef.STATE.ASSIGNED ==task.getCurrentState())
model.add(task);
}
}
}