/**
* 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.eclipse.rulebuilder.ui;
import java.util.Arrays;
import java.util.List;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.brl.ActionInsertFact;
import org.drools.ide.common.client.modeldriven.brl.ActionInsertLogicalFact;
import org.drools.ide.common.client.modeldriven.brl.ActionRetractFact;
import org.drools.ide.common.client.modeldriven.brl.ActionSetField;
import org.drools.ide.common.client.modeldriven.brl.ActionUpdateField;
import org.drools.ide.common.client.modeldriven.brl.DSLSentence;
import org.drools.ide.common.client.modeldriven.brl.FreeFormLine;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
/**
* This provides a popup for new RHS action selection.
*
* @author Anton Arhipov
* @author Ahti Kitsik
*/
public class AddNewActionDialog extends RuleDialog {
private RuleModeller modeller;
public AddNewActionDialog(Shell parent,
RuleModeller modeller) {
super( parent,
"Add a new action",
"Pick the values from combos and confirm the selection." );
this.modeller = modeller;
}
protected Control createDialogArea(final Composite parent) {
Composite composite = (Composite) super.createDialogArea( parent );
GridLayout layout = new GridLayout( 2,
false );
composite.setLayout( layout );
String heading = "Choose...";
createValuesOfFieldPart( composite,
heading );
createModifyFieldPart( composite,
heading );
createRetractFieldPart( composite,
heading );
String[] facts = getCompletion().getFactTypes();
createFactAssertionPart( composite,
heading,
facts );
createFactLogicalAssertionPart( composite,
heading,
facts );
createDrlSentences( composite );
// createAddFreeFromDSL(composite,heading);
return composite;
}
private void createDrlSentences(Composite composite) {
createLabel( composite,
"Free form action" );
Button b = new Button( composite,
SWT.NONE );
b.setText( "Add free form drl" );
b.addSelectionListener( new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
}
public void widgetSelected(SelectionEvent e) {
modeller.getModel().addRhsItem( new FreeFormLine() );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
private void createRetractFieldPart(Composite composite,
String heading) {
createLabel( composite,
"Retract the fact" );
final Combo factsCombo = new Combo( composite,
SWT.READ_ONLY );
factsCombo.add( heading );
List boundFacts = modeller.getModel().getBoundFacts();
for ( int i = 0; i < boundFacts.size(); i++ ) {
factsCombo.add( (String) boundFacts.get( i ) );
}
factsCombo.select( 0 );
factsCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( factsCombo.getSelectionIndex() == 0 ) {
return;
}
modeller.getModel().addRhsItem( new ActionRetractFact( factsCombo.getText() ) );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
private void createModifyFieldPart(Composite composite,
String heading) {
createLabel( composite,
"Modify a field on a fact" );
final Combo factsCombo = new Combo( composite,
SWT.READ_ONLY );
factsCombo.add( heading );
List boundFacts = modeller.getModel().getBoundFacts();
for ( int i = 0; i < boundFacts.size(); i++ ) {
factsCombo.add( (String) boundFacts.get( i ) );
}
factsCombo.select( 0 );
factsCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( factsCombo.getSelectionIndex() == 0 ) {
return;
}
modeller.getModel().addRhsItem( new ActionUpdateField( factsCombo.getText() ) );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
private void createDslSentences(Composite composite,
String heading) {
if ( getCompletion().getDSLActions().length > 0 ) {
createLabel( composite,
"Actions" );
final Combo dslCombo = new Combo( composite,
SWT.READ_ONLY );
dslCombo.add( heading );
for ( int i = 0; i < getCompletion().getDSLActions().length; i++ ) {
DSLSentence sen = getCompletion().getDSLActions()[i];
dslCombo.add( sen.toString() );
}
dslCombo.select( 0 );
dslCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( dslCombo.getSelectionIndex() == 0 ) {
return;
}
DSLSentence sentence = getCompletion().getDSLActions()[dslCombo.getSelectionIndex() - 1];
modeller.getModel().addRhsItem( sentence.copy() );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
}
private void createFactLogicalAssertionPart(Composite composite,
String heading,
String[] facts) {
createLabel( composite,
"Logically insert a new fact" );
final Combo factsCombo = createFactsCombo( composite,
heading,
facts );
factsCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( factsCombo.getSelectionIndex() == 0 ) {
return;
}
modeller.getModel().addRhsItem( new ActionInsertLogicalFact( factsCombo.getText() ) );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
private void createFactAssertionPart(Composite composite,
String heading,
String[] facts) {
createLabel( composite,
"Assert a new fact" );
final Combo factsCombo = createFactsCombo( composite,
heading,
facts );
factsCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( factsCombo.getSelectionIndex() == 0 ) {
return;
}
modeller.getModel().addRhsItem( new ActionInsertFact( factsCombo.getText() ) );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
private Combo createFactsCombo(Composite composite,
String heading,
String[] facts) {
Combo factsCombo = new Combo( composite,
SWT.READ_ONLY );
factsCombo.add( heading );
for ( int i = 0; i < facts.length; i++ ) {
factsCombo.add( facts[i] );
}
factsCombo.select( 0 );
return factsCombo;
}
private void createValuesOfFieldPart(Composite composite,
String heading) {
createLabel( composite,
"Set the values of a field on" );
final Combo globalVarsCombo = new Combo( composite,
SWT.READ_ONLY );
globalVarsCombo.add( heading );
List boundFacts = modeller.getModel().getBoundFacts();
//adding globals
String[] globals = modeller.getSuggestionCompletionEngine().getGlobalVariables();
boundFacts.addAll( Arrays.asList( globals ) );
for ( int i = 0; i < boundFacts.size(); i++ ) {
globalVarsCombo.add( (String) boundFacts.get( i ) );
}
globalVarsCombo.select( 0 );
globalVarsCombo.addListener( SWT.Selection,
new Listener() {
public void handleEvent(Event event) {
if ( globalVarsCombo.getSelectionIndex() == 0 ) {
return;
}
modeller.getModel().addRhsItem( new ActionSetField( globalVarsCombo.getText() ) );
modeller.setDirty( true );
modeller.reloadRhs();
close();
}
} );
}
public SuggestionCompletionEngine getCompletion() {
return modeller.getSuggestionCompletionEngine();
}
}