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* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.jboss.mbui.gui.reification.pipeline;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Widget;
import org.jboss.mbui.gui.reification.Context;
import org.jboss.mbui.gui.reification.ReificationException;
import org.jboss.mbui.gui.reification.StructureLogger;
import org.jboss.mbui.gui.reification.strategy.ChoiceStrategy;
import org.jboss.mbui.gui.reification.strategy.ConcurrencyStrategy;
import org.jboss.mbui.gui.reification.strategy.DeactivationStrategy;
import org.jboss.mbui.gui.reification.strategy.FormStrategy;
import org.jboss.mbui.gui.reification.strategy.LinkStrategy;
import org.jboss.mbui.gui.reification.strategy.PullDownStrategy;
import org.jboss.mbui.gui.reification.strategy.ReificationStrategy;
import org.jboss.mbui.gui.reification.strategy.ReificationWidget;
import org.jboss.mbui.gui.reification.strategy.SelectStrategy;
import org.jboss.mbui.gui.reification.strategy.ToolStripStrategy;
import org.jboss.mbui.gui.reification.strategy.TriggerStrategy;
import org.jboss.mbui.model.Dialog;
import org.jboss.mbui.model.structure.Container;
import org.jboss.mbui.model.structure.InteractionUnit;
import org.jboss.mbui.model.structure.as7.StereoTypes;
import org.jboss.mbui.model.structure.impl.InteractionUnitVisitor;
import java.util.LinkedList;
import java.util.List;
import java.util.Stack;
import static org.jboss.mbui.gui.reification.ContextKey.WIDGET;
/**
* TODO: Belongs to AS7 package
*
* @author Harald Pehl
* @author Heiko Braun
* @date 11/12/2012
*/
public class BuildUserInterfaceStep extends ReificationStep
{
final List<ReificationStrategy<ReificationWidget, StereoTypes>> strategies;
private StructureLogger logger = new StructureLogger();
class BlankWidget implements ReificationWidget{
private final InteractionUnit unit;
BlankWidget(InteractionUnit unit) {
this.unit = unit;
}
@Override
public InteractionUnit getInteractionUnit() {
return unit;
}
@Override
public void add(ReificationWidget widget) {
}
@Override
public Widget asWidget() {
return new HTML("<div style='width:100%; padding:20px; background-color:yellow'>Placeholder</div>");
}
};
public BuildUserInterfaceStep()
{
super("build ui");
this.strategies = new LinkedList<ReificationStrategy<ReificationWidget, StereoTypes>>();
// order is important! add specific strategies first!
this.strategies.add(new ToolStripStrategy());
this.strategies.add(new TriggerStrategy());
this.strategies.add(new LinkStrategy());
this.strategies.add(new FormStrategy());
this.strategies.add(new SelectStrategy());
this.strategies.add(new PullDownStrategy());
// containerStack
this.strategies.add(new ConcurrencyStrategy());
this.strategies.add(new ChoiceStrategy());
this.strategies.add(new DeactivationStrategy());
}
@Override
public void execute(final Dialog dialog, final Context context) throws ReificationException
{
BuildUserInterfaceVisitor visitor = new BuildUserInterfaceVisitor(context);
dialog.getInterfaceModel().accept(visitor);
System.out.println(logger.flush());
context.set(WIDGET, visitor.root);
System.out.println("Finished " + getName());
}
class BuildUserInterfaceVisitor implements InteractionUnitVisitor
{
final Context context;
BuildUserInterfaceVisitor(final Context context)
{
this.context = context;
}
ReificationWidget root;
Stack<ReificationWidget> containerStack = new Stack<ReificationWidget>();
@Override
public void startVisit(final Container container)
{
logger.start(container);
ReificationStrategy<ReificationWidget, StereoTypes> strategy = resolve(container);
if (strategy != null)
{
boolean isPrepared = strategy.prepare(container, context);
ReificationWidget widget = isPrepared ?
strategy.reify(container, context) : new BlankWidget(container);
// stack up myself
this.containerStack.push(widget);
}
}
@Override
public void visit(final InteractionUnit interactionUnit)
{
logger.start(interactionUnit);
ReificationStrategy<ReificationWidget, StereoTypes> strategy = resolve(interactionUnit);
if (strategy != null)
{
boolean isPrepared = strategy.prepare(interactionUnit, context);
ReificationWidget widget = isPrepared ?
strategy.reify(interactionUnit, context) : new BlankWidget(interactionUnit);
assert !this.containerStack.isEmpty() : "Atomic units needs to reside within container";
this.containerStack.peek().add(widget);
}
logger.end(interactionUnit);
}
@Override
public void endVisit(final Container container)
{
assert !this.containerStack.isEmpty() : "wrong order of startVisit() / endVisit()";
logger.end(container);
ReificationWidget currentContainer = this.containerStack.pop();
if (containerStack.isEmpty())
{
//memorize the final root widget
root = currentContainer;
}
else
{
// add to parent
this.containerStack.peek().add(currentContainer);
}
}
private ReificationStrategy<ReificationWidget, StereoTypes> resolve(InteractionUnit interactionUnit)
{
ReificationStrategy<ReificationWidget, StereoTypes> match = null;
for (ReificationStrategy<ReificationWidget, StereoTypes> strategy : strategies)
{
if (strategy.appliesTo(interactionUnit))
{
//System.out.println("Matching strategy "+strategy.getClass()+ " to " + interactionUnit);
match = strategy;
break;
}
}
return match;
}
}
}