/*
* 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.drools.guvnor.client.asseteditor.drools.modeldriven.ui;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.HumanReadable;
import org.drools.guvnor.client.common.InfoPopup;
import org.drools.guvnor.client.configurations.Capability;
import org.drools.guvnor.client.configurations.UserCapabilities;
import org.drools.guvnor.client.messages.Constants;
import org.drools.ide.common.client.modeldriven.brl.CompositeFactPattern;
import org.drools.ide.common.client.modeldriven.brl.DSLSentence;
import org.drools.ide.common.client.modeldriven.brl.FactPattern;
import org.drools.ide.common.client.modeldriven.brl.FreeFormLine;
import org.drools.ide.common.client.modeldriven.brl.FromAccumulateCompositeFactPattern;
import org.drools.ide.common.client.modeldriven.brl.FromCollectCompositeFactPattern;
import org.drools.ide.common.client.modeldriven.brl.FromCompositeFactPattern;
import org.drools.ide.common.client.modeldriven.brl.FromEntryPointFactPattern;
import org.drools.ide.common.client.modeldriven.brl.RuleModel;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.Widget;
/**
* Pop-up for adding Conditions to the (RuleModeller) guided editor
*/
public class RuleModellerConditionSelectorPopup extends AbstractRuleModellerSelectorPopup {
public RuleModellerConditionSelectorPopup(RuleModel model,
RuleModeller ruleModeller,
String packageName,
Integer position) {
super( model,
ruleModeller,
packageName,
position );
}
@Override
protected String getPopupTitle() {
return Constants.INSTANCE.AddAConditionToTheRule();
}
@Override
public Widget getContent() {
if ( position == null ) {
positionCbo.addItem( Constants.INSTANCE.Bottom(),
String.valueOf( this.model.lhs.length ) );
positionCbo.addItem( Constants.INSTANCE.Top(),
"0" );
for ( int i = 1; i < model.lhs.length; i++ ) {
positionCbo.addItem( Constants.INSTANCE.Line0( i ),
String.valueOf( i ) );
}
} else {
//if position is fixed, we just add one element to the drop down.
positionCbo.addItem( String.valueOf( position ) );
positionCbo.setSelectedIndex( 0 );
}
if ( completions.getDSLConditions().length == 0 && completions.getFactTypes().length == 0 ) {
layoutPanel.addRow( new HTML( "<div class='highlight'>" + Constants.INSTANCE.NoModelTip() + "</div>" ) );
}
//only show the drop down if we are not using fixed position.
if ( position == null ) {
HorizontalPanel hp0 = new HorizontalPanel();
hp0.add( new HTML( Constants.INSTANCE.PositionColon() ) );
hp0.add( positionCbo );
hp0.add( new InfoPopup( Constants.INSTANCE.PositionColon(),
Constants.INSTANCE.ConditionPositionExplanation() ) );
layoutPanel.addRow( hp0 );
}
choices = makeChoicesListBox();
choicesPanel.add( choices );
layoutPanel.addRow( choicesPanel );
HorizontalPanel hp = new HorizontalPanel();
Button ok = new Button( Constants.INSTANCE.OK() );
hp.add( ok );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
selectSomething();
}
} );
Button cancel = new Button( Constants.INSTANCE.Cancel() );
hp.add( cancel );
cancel.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
hide();
}
} );
CheckBox chkOnlyDisplayDSLConditions = new CheckBox();
chkOnlyDisplayDSLConditions.setText( Constants.INSTANCE.OnlyDisplayDSLConditions() );
chkOnlyDisplayDSLConditions.setValue( bOnlyShowDSLConditions );
chkOnlyDisplayDSLConditions.addValueChangeHandler( new ValueChangeHandler<Boolean>() {
public void onValueChange(ValueChangeEvent<Boolean> event) {
bOnlyShowDSLConditions = event.getValue();
choicesPanel.setWidget( makeChoicesListBox() );
}
} );
layoutPanel.addRow( chkOnlyDisplayDSLConditions );
layoutPanel.addRow( hp );
this.setAfterShow( new Command() {
public void execute() {
choices.setFocus( true );
}
} );
return layoutPanel;
}
private ListBox makeChoicesListBox() {
choices = new ListBox( true );
choices.setPixelSize( getChoicesWidth(),
getChoicesHeight() );
choices.addKeyUpHandler( new KeyUpHandler() {
public void onKeyUp(com.google.gwt.event.dom.client.KeyUpEvent event) {
if ( event.getNativeKeyCode() == KeyCodes.KEY_ENTER ) {
selectSomething();
}
}
} );
addDSLSentences();
if ( !bOnlyShowDSLConditions ) {
addFacts();
addExistentialConditionalElements();
addFromConditionalElements();
addFreeFormDrl();
}
return choices;
}
// The list of DSL sentences
private void addDSLSentences() {
if ( completions.getDSLConditions().length > 0 ) {
for ( int i = 0; i < completions.getDSLConditions().length; i++ ) {
final DSLSentence sen = completions.getDSLConditions()[i];
String key = "DSL" + i;
choices.addItem( sen.toString(),
key );
cmds.put( key,
new Command() {
public void execute() {
addNewDSLLhs( sen,
Integer.parseInt( positionCbo.getValue( positionCbo.getSelectedIndex() ) ) );
hide();
}
} );
}
}
}
// The list of facts
private void addFacts() {
if ( completions.getFactTypes().length > 0 ) {
choices.addItem( SECTION_SEPARATOR );
for ( int i = 0; i < completions.getFactTypes().length; i++ ) {
final String f = completions.getFactTypes()[i];
String key = "NF" + f;
choices.addItem( f + " ...",
key );
cmds.put( key,
new Command() {
public void execute() {
addNewFact( f,
Integer.parseInt( positionCbo.getValue( positionCbo.getSelectedIndex() ) ) );
hide();
}
} );
}
}
}
// The list of existential CEs
private void addExistentialConditionalElements() {
String ces[] = HumanReadable.CONDITIONAL_ELEMENTS;
choices.addItem( SECTION_SEPARATOR );
for ( int i = 0; i < ces.length; i++ ) {
final String ce = ces[i];
String key = "CE" + ce;
choices.addItem( HumanReadable.getCEDisplayName( ce ) + " ...",
key );
cmds.put( key,
new Command() {
public void execute() {
addNewCE( ce,
Integer.parseInt( positionCbo.getValue( positionCbo.getSelectedIndex() ) ) );
hide();
}
} );
}
}
// The list of from CEs
private void addFromConditionalElements() {
String fces[] = HumanReadable.FROM_CONDITIONAL_ELEMENTS;
choices.addItem( SECTION_SEPARATOR );
for ( int i = 0; i < fces.length; i++ ) {
final String ce = fces[i];
String key = "FCE" + ce;
choices.addItem( HumanReadable.getCEDisplayName( ce ) + " ...",
key );
cmds.put( key,
new Command() {
public void execute() {
addNewFCE( ce,
Integer.parseInt( positionCbo.getValue( positionCbo.getSelectedIndex() ) ) );
hide();
}
} );
}
}
// Free form DRL
private void addFreeFormDrl() {
if ( UserCapabilities.INSTANCE.hasCapability( Capability.SHOW_KNOWLEDGE_BASES_VIEW ) ) {
choices.addItem( SECTION_SEPARATOR );
choices.addItem( Constants.INSTANCE.FreeFormDrl(),
"FF" );
cmds.put( "FF",
new Command() {
public void execute() {
model.addLhsItem( new FreeFormLine(),
Integer.parseInt( positionCbo.getValue( positionCbo.getSelectedIndex() ) ) );
hide();
}
} );
}
}
private void addNewDSLLhs(DSLSentence sentence,
int position) {
model.addLhsItem( sentence.copy(),
position );
}
private void addNewFact(String itemText,
int position) {
this.model.addLhsItem( new FactPattern( itemText ),
position );
}
private void addNewCE(String s,
int position) {
this.model.addLhsItem( new CompositeFactPattern( s ),
position );
}
private void addNewFCE(String type,
int position) {
FromCompositeFactPattern p = null;
if ( type.equals( "from" ) ) {
p = new FromCompositeFactPattern();
} else if ( type.equals( "from accumulate" ) ) {
p = new FromAccumulateCompositeFactPattern();
} else if ( type.equals( "from collect" ) ) {
p = new FromCollectCompositeFactPattern();
} else if ( type.equals( "from entry-point" ) ) {
p = new FromEntryPointFactPattern();
}
this.model.addLhsItem( p,
position );
}
}