/*
* 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.decisiontable;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
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.messages.Constants;
import org.drools.guvnor.client.resources.Images;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.dt.ActionCol;
import org.drools.ide.common.client.modeldriven.dt.ActionSetFieldCol;
import org.drools.ide.common.client.modeldriven.dt.ConditionCol;
import org.drools.ide.common.client.modeldriven.dt.GuidedDecisionTable;
import com.google.gwt.core.client.GWT;
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.Command;
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.Image;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
public class ActionSetColumn extends FormStylePopup {
private Constants constants = GWT.create( Constants.class );
private static Images images = (Images) GWT.create( Images.class );
private ActionSetFieldCol editingCol;
private SmallLabel bindingLabel = new SmallLabel();
private TextBox fieldLabel = getFieldLabel();
private GuidedDecisionTable dt;
private SuggestionCompletionEngine sce;
public ActionSetColumn(SuggestionCompletionEngine sce,
final GuidedDecisionTable dt,
final Command refreshGrid,
final ActionSetFieldCol col,
final boolean isNew) {
this.editingCol = new ActionSetFieldCol();
this.dt = dt;
this.sce = sce;
editingCol.setBoundName( col.getBoundName() );
editingCol.setFactField( col.getFactField() );
editingCol.setHeader( col.getHeader() );
editingCol.setType( col.getType() );
editingCol.setValueList( col.getValueList() );
editingCol.setUpdate( col.isUpdate() );
editingCol.setDefaultValue( col.getDefaultValue() );
editingCol.setHideColumn( col.isHideColumn() );
super.setModal( false );
setTitle( constants.ColumnConfigurationSetAFieldOnAFact() );
HorizontalPanel pattern = new HorizontalPanel();
pattern.add( bindingLabel );
doBindingLabel();
Image changePattern = new ImageButton( images.edit(),
constants.ChooseABoundFactThatThisColumnPertainsTo(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showChangeFact( w );
}
} );
pattern.add( changePattern );
addAttribute( constants.Fact(),
pattern );
HorizontalPanel field = new HorizontalPanel();
field.add( fieldLabel );
Image editField = new ImageButton( images.edit(),
constants.EditTheFieldThatThisColumnOperatesOn(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showFieldChange();
}
} );
field.add( editField );
addAttribute( constants.Field(),
field );
doFieldLabel();
final TextBox valueList = new TextBox();
valueList.setText( editingCol.getValueList() );
valueList.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setValueList( valueList.getText() );
}
} );
HorizontalPanel vl = new HorizontalPanel();
vl.add( valueList );
vl.add( new InfoPopup( constants.ValueList(),
constants.ValueListsExplanation() ) );
addAttribute( constants.optionalValueList(),
vl );
final TextBox header = new TextBox();
header.setText( col.getHeader() );
header.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setHeader( header.getText() );
}
} );
addAttribute( constants.ColumnHeaderDescription(),
header );
addAttribute( constants.UpdateEngineWithChanges(),
doUpdate() );
addAttribute( constants.DefaultValue(),
GuidedDTColumnConfig.getDefaultEditor( editingCol ) );
Button apply = new Button( constants.ApplyChanges() );
apply.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
if ( null == editingCol.getHeader() || "".equals( editingCol.getHeader() ) ) {
Window.alert( constants.YouMustEnterAColumnHeaderValueDescription() );
return;
}
if ( isNew ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( constants.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
dt.getActionCols().add( editingCol );
} else {
if ( !col.getHeader().equals( editingCol.getHeader() ) ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( constants.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
}
col.setBoundName( editingCol.getBoundName() );
col.setFactField( editingCol.getFactField() );
col.setHeader( editingCol.getHeader() );
col.setType( editingCol.getType() );
col.setValueList( editingCol.getValueList() );
col.setUpdate( editingCol.isUpdate() );
col.setDefaultValue( editingCol.getDefaultValue() );
col.setHideColumn( editingCol.isHideColumn() );
}
refreshGrid.execute();
hide();
}
} );
addAttribute( "",
apply );
}
private boolean unique(String header) {
for ( ActionCol o : dt.getActionCols() ) {
if ( o.getHeader().equals( header ) ) return false;
}
return true;
}
private Widget doUpdate() {
HorizontalPanel hp = new HorizontalPanel();
final CheckBox cb = new CheckBox();
cb.setEnabled( editingCol.isUpdate() );
cb.setText( "" );
cb.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent arg0) {
if ( sce.isGlobalVariable( editingCol.getBoundName() ) ) {
cb.setEnabled( false );
editingCol.setUpdate( false );
} else {
editingCol.setUpdate( cb.isEnabled() );
}
}
} );
hp.add( cb );
hp.add( new InfoPopup( constants.UpdateFact(),
constants.UpdateDescription() ) );
return hp;
}
private TextBox getFieldLabel() {
final TextBox box = new TextBox();
box.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setFactField( box.getText() );
}
} );
return box;
}
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.Field(),
box );
Button b = new Button( constants.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() ) );
doFieldLabel();
pop.hide();
}
} );
pop.show();
}
private String getFactType() {
if ( sce.isGlobalVariable( editingCol.getBoundName() ) ) {
return sce.getGlobalVariable( editingCol.getBoundName() );
}
return getFactType( this.editingCol.getBoundName() );
}
private void doFieldLabel() {
if ( this.editingCol.getFactField() != null ) {
this.fieldLabel.setText( this.editingCol.getFactField() );
} else {
this.fieldLabel.setText( constants.pleaseChooseAFactPatternFirst() );
}
}
private String getFactType(String boundName) {
for ( Iterator<ConditionCol> iterator = dt.getConditionCols().iterator(); iterator.hasNext(); ) {
ConditionCol col = (ConditionCol) iterator.next();
if ( col.getBoundName().equals( boundName ) ) {
return col.getFactField();
}
}
return "";
}
private void showChangeFact(ClickEvent w) {
final FormStylePopup pop = new FormStylePopup();
final ListBox pats = this.loadBoundFacts();
pop.addAttribute( constants.ChooseFact(),
pats );
Button ok = new Button( constants.OK() );
pop.addAttribute( "",
ok );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
String val = pats.getValue( pats.getSelectedIndex() );
editingCol.setBoundName( val );
doBindingLabel();
pop.hide();
}
} );
pop.show();
}
private ListBox loadBoundFacts() {
Set<String> facts = new HashSet<String>();
for ( int i = 0; i < this.dt.getConditionCols().size(); i++ ) {
ConditionCol c = (ConditionCol) dt.getConditionCols().get( i );
facts.add( c.getBoundName() );
}
ListBox box = new ListBox();
for ( Iterator<String> iterator = facts.iterator(); iterator.hasNext(); ) {
String b = (String) iterator.next();
box.addItem( b );
}
String[] globs = this.sce.getGlobalVariables();
for ( int i = 0; i < globs.length; i++ ) {
box.addItem( globs[i] );
}
return box;
}
private void doBindingLabel() {
if ( this.editingCol.getBoundName() != null ) {
this.bindingLabel.setText( "" + this.editingCol.getBoundName() );
} else {
this.bindingLabel.setText( constants.pleaseChooseABoundFactForThisColumn() );
}
}
}