/*
* Copyright 2010 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.drools.guvnor.client.factmodel;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.drools.guvnor.client.messages.Constants;
import org.drools.guvnor.client.util.AbstractLazyStackPanelHeader;
import org.drools.guvnor.client.util.AddButton;
import org.drools.guvnor.client.util.LazyStackPanel;
import org.drools.guvnor.client.util.LoadContentCommand;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;
/**
*
* @author rikkola
*
*/
public class FactModelsEditor extends Composite {
private static Constants constants = ((Constants) GWT.create( Constants.class ));
interface FactModelsEditorBinder
extends
UiBinder<Widget, FactModelsEditor> {
}
private static FactModelsEditorBinder uiBinder = GWT.create( FactModelsEditorBinder.class );
@UiField
LazyStackPanel factModelsPanel;
@UiField
AddButton addFactIcon;
private final List<FactMetaModel> factModels;
private final ModelNameHelper modelNameHelper = new ModelNameHelper();
public FactModelsEditor(List<FactMetaModel> factModels) {
this.factModels = factModels;
initWidget( uiBinder.createAndBindUi( this ) );
addFactIcon.setTitle( constants.AddNewFactType() );
addFactIcon.setText( constants.AddNewFactType() );
fillModels();
}
public void addFactModelToStackPanel(final FactMetaModel factMetaModel) {
final FactModelEditor editor = new FactModelEditor( factMetaModel );
modelNameHelper.getTypeDescriptions().put( factMetaModel.name,
factMetaModel.name );
editor.setModelNameHelper( modelNameHelper );
editor.setMoveDownCommand( getMoveDownCommand( factMetaModel ) );
editor.setMoveUpCommand( getMoveUpCommand( factMetaModel ) );
editor.setDeleteEvent( getDeleteCommand( factMetaModel ) );
factModelsPanel.add( editor,
new LoadContentCommand() {
public Widget load() {
return editor.getContent();
}
} );
renderEditorArrows();
}
private Command getDeleteCommand(final FactMetaModel factMetaModel) {
return new Command() {
public void execute() {
int index = factModels.indexOf( factMetaModel );
modelNameHelper.getTypeDescriptions().remove( factMetaModel.name );
factModels.remove( factMetaModel );
factModelsPanel.remove( index );
}
};
}
private Command getMoveUpCommand(final FactMetaModel factMetaModel) {
return new Command() {
public void execute() {
int editingFactIndex = factModels.indexOf( factMetaModel );
int newIndex = editingFactIndex - 1;
swap( editingFactIndex,
newIndex );
renderEditorArrows();
}
};
}
private Command getMoveDownCommand(final FactMetaModel factMetaModel) {
return new Command() {
public void execute() {
int editingFactIndex = factModels.indexOf( factMetaModel );
int newIndex = editingFactIndex + 1;
swap( editingFactIndex,
newIndex );
renderEditorArrows();
}
};
}
private void swap(int editingFactIndex,
int newIndex) {
Collections.swap( factModels,
editingFactIndex,
newIndex );
factModelsPanel.swap( editingFactIndex,
newIndex );
}
private void renderEditorArrows() {
Iterator<AbstractLazyStackPanelHeader> iterator = factModelsPanel.getHeaderIterator();
while ( iterator.hasNext() ) {
AbstractLazyStackPanelHeader widget = (AbstractLazyStackPanelHeader) iterator.next();
if ( widget instanceof FactModelEditor ) {
FactModelEditor editor = (FactModelEditor) widget;
int index = factModels.indexOf( editor.getFactModel() );
editor.setUpVisible( index != 0 );
editor.setDownVisible( index != (factModels.size() - 1) );
}
}
}
private void fillModels() {
for ( final FactMetaModel factMetaModel : factModels ) {
addFactModelToStackPanel( factMetaModel );
}
}
@UiHandler("addFactIcon")
void addFactClick(ClickEvent event) {
final FactEditorPopup popup = new FactEditorPopup( modelNameHelper );
popup.setOkCommand( new Command() {
public void execute() {
FactMetaModel factMetaModel = popup.getFactModel();
factModels.add( factMetaModel );
addFactModelToStackPanel( factMetaModel );
}
} );
popup.show();
}
}