/*
* 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.decisiontable;
import java.util.Arrays;
import java.util.List;
import org.drools.guvnor.client.common.FormStylePopup;
import org.drools.guvnor.client.common.ImageButton;
import org.drools.guvnor.client.common.InfoPopup;
import org.drools.guvnor.client.common.SmallLabel;
import org.drools.guvnor.client.decisiontable.widget.DTCellValueUtilities;
import org.drools.guvnor.client.messages.Constants;
import org.drools.guvnor.client.resources.DroolsGuvnorImages;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.dt52.ActionCol52;
import org.drools.ide.common.client.modeldriven.dt52.ActionSetFieldCol52;
import org.drools.ide.common.client.modeldriven.dt52.BRLRuleModel;
import org.drools.ide.common.client.modeldriven.dt52.DTCellValue52;
import org.drools.ide.common.client.modeldriven.dt52.DTDataTypes52;
import org.drools.ide.common.client.modeldriven.dt52.GuidedDecisionTable52;
import org.drools.ide.common.client.modeldriven.dt52.GuidedDecisionTable52.TableFormat;
import org.drools.ide.common.client.modeldriven.dt52.LimitedEntryActionSetFieldCol52;
import org.drools.ide.common.client.modeldriven.dt52.LimitedEntryCol;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
public class ActionSetFieldPopup extends FormStylePopup {
private SmallLabel bindingLabel = new SmallLabel();
private TextBox fieldLabel = getFieldLabel();
private SimplePanel limitedEntryValueWidgetContainer = new SimplePanel();
private int limitedEntryValueAttributeIndex = -1;
private TextBox valueListWidget = null;
private SimplePanel defaultValueWidgetContainer = new SimplePanel();
private int defaultValueWidgetContainerIndex = -1;
private final GuidedDecisionTable52 model;
private final SuggestionCompletionEngine sce;
private final DTCellValueWidgetFactory factory;
private final BRLRuleModel rm;
private final DTCellValueUtilities utilities;
private ActionSetFieldCol52 editingCol;
private final boolean isReadOnly;
public ActionSetFieldPopup(final SuggestionCompletionEngine sce,
final GuidedDecisionTable52 model,
final GenericColumnCommand refreshGrid,
final ActionSetFieldCol52 col,
final boolean isNew,
final boolean isReadOnly) {
this.rm = new BRLRuleModel( model );
this.editingCol = cloneActionSetColumn( col );
this.model = model;
this.sce = sce;
this.isReadOnly = isReadOnly;
this.utilities = new DTCellValueUtilities( model,
sce );
//Set-up a factory for value editors
factory = DTCellValueWidgetFactory.getInstance( model,
sce,
isReadOnly,
allowEmptyValues() );
setTitle( Constants.INSTANCE.ColumnConfigurationSetAFieldOnAFact() );
setModal( false );
//Fact on which field will be set
HorizontalPanel pattern = new HorizontalPanel();
pattern.add( bindingLabel );
doBindingLabel();
ImageButton changePattern = new ImageButton( DroolsGuvnorImages.INSTANCE.edit(),
DroolsGuvnorImages.INSTANCE.editDisabled(),
Constants.INSTANCE.ChooseABoundFactThatThisColumnPertainsTo(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showChangeFact( w );
}
} );
changePattern.setEnabled( !isReadOnly );
pattern.add( changePattern );
addAttribute( Constants.INSTANCE.Fact(),
pattern );
//Fact Field being set
HorizontalPanel field = new HorizontalPanel();
fieldLabel.setEnabled( !isReadOnly );
field.add( fieldLabel );
ImageButton editField = new ImageButton( DroolsGuvnorImages.INSTANCE.edit(),
DroolsGuvnorImages.INSTANCE.editDisabled(),
Constants.INSTANCE.EditTheFieldThatThisColumnOperatesOn(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showFieldChange();
}
} );
editField.setEnabled( !isReadOnly );
field.add( editField );
addAttribute( Constants.INSTANCE.Field(),
field );
doFieldLabel();
//Column header
final TextBox header = new TextBox();
header.setText( col.getHeader() );
header.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
header.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setHeader( header.getText() );
}
} );
}
addAttribute( Constants.INSTANCE.ColumnHeaderDescription(),
header );
//Optional value list
if ( model.getTableFormat() == TableFormat.EXTENDED_ENTRY ) {
valueListWidget = new TextBox();
valueListWidget.setText( editingCol.getValueList() );
valueListWidget.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
//Copy value back to model
valueListWidget.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setValueList( valueListWidget.getText() );
}
} );
//Update Default Value widget if necessary
valueListWidget.addBlurHandler( new BlurHandler() {
public void onBlur(BlurEvent event) {
assertDefaultValue();
makeDefaultValueWidget();
}
private void assertDefaultValue() {
final List<String> valueList = Arrays.asList( model.getValueList( editingCol ) );
if ( valueList.size() > 0 ) {
final String defaultValue = utilities.asString( editingCol.getDefaultValue() );
if ( !valueList.contains( defaultValue ) ) {
editingCol.getDefaultValue().clearValues();
}
} else {
//Ensure the Default Value has been updated to represent the column's data-type.
final DTCellValue52 defaultValue = editingCol.getDefaultValue();
final DTDataTypes52 dataType = utilities.getDataType( editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
}
}
} );
}
HorizontalPanel vl = new HorizontalPanel();
vl.add( valueListWidget );
vl.add( new InfoPopup( Constants.INSTANCE.ValueList(),
Constants.INSTANCE.ValueListsExplanation() ) );
addAttribute( Constants.INSTANCE.optionalValueList(),
vl );
}
doValueList();
//Default Value
if ( model.getTableFormat() == TableFormat.EXTENDED_ENTRY ) {
defaultValueWidgetContainerIndex = addAttribute( Constants.INSTANCE.DefaultValue(),
defaultValueWidgetContainer );
makeDefaultValueWidget();
}
//Limited entry value widget
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
limitedEntryValueAttributeIndex = addAttribute( Constants.INSTANCE.LimitedEntryValue(),
limitedEntryValueWidgetContainer );
makeLimitedValueWidget();
}
//Update Engine with changes
addAttribute( Constants.INSTANCE.UpdateEngineWithChanges(),
doUpdate() );
//Hide column tick-box
addAttribute( Constants.INSTANCE.HideThisColumn(),
DTCellValueWidgetFactory.getHideColumnIndicator( editingCol ) );
Button apply = new Button( Constants.INSTANCE.ApplyChanges() );
apply.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
if ( !isValidFactType() ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnFact() );
return;
}
if ( !isValidFactField() ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnField() );
return;
}
if ( null == editingCol.getHeader() || "".equals( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnHeaderValueDescription() );
return;
}
if ( isNew ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
} else {
if ( !col.getHeader().equals( editingCol.getHeader() ) ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
}
}
// Pass new\modified column back for handling
refreshGrid.execute( editingCol );
hide();
}
} );
addAttribute( "",
apply );
}
private boolean allowEmptyValues() {
return this.model.getTableFormat() == TableFormat.EXTENDED_ENTRY;
}
private ActionSetFieldCol52 cloneActionSetColumn(ActionSetFieldCol52 col) {
ActionSetFieldCol52 clone = null;
if ( col instanceof LimitedEntryActionSetFieldCol52 ) {
clone = new LimitedEntryActionSetFieldCol52();
DTCellValue52 dcv = cloneLimitedEntryValue( ((LimitedEntryCol) col).getValue() );
((LimitedEntryCol) clone).setValue( dcv );
} else {
clone = new ActionSetFieldCol52();
}
clone.setBoundName( col.getBoundName() );
clone.setFactField( col.getFactField() );
clone.setHeader( col.getHeader() );
clone.setType( col.getType() );
clone.setValueList( col.getValueList() );
clone.setUpdate( col.isUpdate() );
clone.setDefaultValue( new DTCellValue52( col.getDefaultValue() ) );
clone.setHideColumn( col.isHideColumn() );
return clone;
}
private DTCellValue52 cloneLimitedEntryValue(DTCellValue52 dcv) {
if ( dcv == null ) {
return null;
}
DTCellValue52 clone = new DTCellValue52( dcv );
return clone;
}
private void makeLimitedValueWidget() {
if ( !(editingCol instanceof LimitedEntryActionSetFieldCol52) ) {
return;
}
if ( nil( editingCol.getFactField() ) ) {
setAttributeVisibility( limitedEntryValueAttributeIndex,
false );
return;
}
LimitedEntryActionSetFieldCol52 lea = (LimitedEntryActionSetFieldCol52) editingCol;
setAttributeVisibility( limitedEntryValueAttributeIndex,
true );
if ( lea.getValue() == null ) {
lea.setValue( factory.makeNewValue( editingCol ) );
}
limitedEntryValueWidgetContainer.setWidget( factory.getWidget( model.getConditionPattern( editingCol.getBoundName() ),
editingCol,
lea.getValue() ) );
}
private void makeDefaultValueWidget() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
if ( nil( editingCol.getFactField() ) ) {
setAttributeVisibility( defaultValueWidgetContainerIndex,
false );
return;
}
setAttributeVisibility( defaultValueWidgetContainerIndex,
true );
if ( editingCol.getDefaultValue() == null ) {
editingCol.setDefaultValue( factory.makeNewValue( editingCol ) );
}
//Ensure the Default Value has been updated to represent the column's
//data-type. Legacy Default Values are all String-based and need to be
//coerced to the correct type
final DTCellValue52 defaultValue = editingCol.getDefaultValue();
final DTDataTypes52 dataType = utilities.getDataType( editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
defaultValueWidgetContainer.setWidget( factory.getWidget( model.getConditionPattern( editingCol.getBoundName() ),
editingCol,
defaultValue ) );
}
private void doBindingLabel() {
if ( this.editingCol.getBoundName() != null ) {
this.bindingLabel.setText( "" + this.editingCol.getBoundName() );
} else {
this.bindingLabel.setText( Constants.INSTANCE.pleaseChooseABoundFactForThisColumn() );
}
}
private void doFieldLabel() {
if ( this.editingCol.getFactField() != null ) {
this.fieldLabel.setText( this.editingCol.getFactField() );
} else {
this.fieldLabel.setText( Constants.INSTANCE.pleaseChooseAFactPatternFirst() );
}
}
private void doValueList() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
//Don't show a Value List if either the Fact\Field is empty
final String factType = model.getBoundFactType( editingCol.getBoundName() );
final String factField = editingCol.getFactField();
boolean enableValueList = !((factType == null || "".equals( factType )) || (factField == null || "".equals( factField )));
//Don't show a Value List if the Fact\Field has an enumeration
if ( enableValueList ) {
enableValueList = !sce.hasEnums( factType,
factField );
}
valueListWidget.setEnabled( enableValueList );
if ( !enableValueList ) {
valueListWidget.setText( "" );
}
}
private Widget doUpdate() {
HorizontalPanel hp = new HorizontalPanel();
final CheckBox cb = new CheckBox();
cb.setValue( editingCol.isUpdate() );
cb.setText( "" );
cb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
cb.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent arg0) {
if ( sce.isGlobalVariable( editingCol.getBoundName() ) ) {
cb.setEnabled( false );
editingCol.setUpdate( false );
} else {
editingCol.setUpdate( cb.getValue() );
}
}
} );
}
hp.add( cb );
hp.add( new InfoPopup( Constants.INSTANCE.UpdateFact(),
Constants.INSTANCE.UpdateDescription() ) );
return hp;
}
private String getFactType() {
if ( sce.isGlobalVariable( editingCol.getBoundName() ) ) {
return sce.getGlobalVariable( editingCol.getBoundName() );
}
return getFactType( this.editingCol.getBoundName() );
}
private String getFactType(String boundName) {
return rm.getLHSBoundFact( boundName ).getFactType();
}
private TextBox getFieldLabel() {
final TextBox box = new TextBox();
box.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setFactField( box.getText() );
}
} );
return box;
}
private ListBox loadBoundFacts(String binding) {
ListBox listBox = new ListBox();
listBox.addItem( Constants.INSTANCE.Choose() );
List<String> factBindings = rm.getLHSBoundFacts();
for ( int index = 0; index < factBindings.size(); index++ ) {
String boundName = factBindings.get( index );
if ( !"".equals( boundName ) ) {
listBox.addItem( boundName );
if ( boundName.equals( binding ) ) {
listBox.setSelectedIndex( index + 1 );
}
}
}
String[] globs = this.sce.getGlobalVariables();
for ( int i = 0; i < globs.length; i++ ) {
listBox.addItem( globs[i] );
}
listBox.setEnabled( listBox.getItemCount() > 1 );
if ( listBox.getItemCount() == 1 ) {
listBox.clear();
listBox.addItem( Constants.INSTANCE.NoPatternBindingsAvailable() );
}
return listBox;
}
private boolean nil(String s) {
return s == null || s.equals( "" );
}
private void showChangeFact(ClickEvent w) {
final FormStylePopup pop = new FormStylePopup();
final ListBox pats = this.loadBoundFacts( editingCol.getBoundName() );
pop.addAttribute( Constants.INSTANCE.ChooseFact(),
pats );
Button ok = new Button( Constants.INSTANCE.OK() );
pop.addAttribute( "",
ok );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
String val = pats.getValue( pats.getSelectedIndex() );
editingCol.setBoundName( val );
editingCol.setFactField( null );
makeLimitedValueWidget();
makeDefaultValueWidget();
doBindingLabel();
doFieldLabel();
doValueList();
pop.hide();
}
} );
pop.show();
}
private void showFieldChange() {
final FormStylePopup pop = new FormStylePopup();
pop.setModal( false );
final String factType = getFactType();
String[] fields = this.sce.getFieldCompletions( factType );
final ListBox box = new ListBox();
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[i] );
}
pop.addAttribute( Constants.INSTANCE.Field(),
box );
Button b = new Button( Constants.INSTANCE.OK() );
pop.addAttribute( "",
b );
b.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
editingCol.setFactField( box.getItemText( box.getSelectedIndex() ) );
editingCol.setType( sce.getFieldType( factType,
editingCol.getFactField() ) );
makeLimitedValueWidget();
makeDefaultValueWidget();
doFieldLabel();
doValueList();
pop.hide();
}
} );
pop.show();
}
private boolean isValidFactType() {
return !(editingCol.getBoundName() == null || "".equals( editingCol.getBoundName() ));
}
private boolean isValidFactField() {
return !(editingCol.getFactField() == null || "".equals( editingCol.getFactField() ));
}
private boolean unique(String header) {
for ( ActionCol52 o : model.getActionCols() ) {
if ( o.getHeader().equals( header ) ) return false;
}
return true;
}
}