/*
* 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.modeldriven.ui.factPattern;
import org.drools.guvnor.client.common.FormStylePopup;
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.modeldriven.ui.RuleModeller;
import org.drools.guvnor.client.resources.Images;
import org.drools.guvnor.client.util.Format;
import org.drools.ide.common.client.modeldriven.FieldAccessorsAndMutators;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.brl.CompositeFieldConstraint;
import org.drools.ide.common.client.modeldriven.brl.ExpressionFormLine;
import org.drools.ide.common.client.modeldriven.brl.ExpressionUnboundFact;
import org.drools.ide.common.client.modeldriven.brl.FactPattern;
import org.drools.ide.common.client.modeldriven.brl.FieldConstraint;
import org.drools.ide.common.client.modeldriven.brl.SingleFieldConstraint;
import org.drools.ide.common.client.modeldriven.brl.SingleFieldConstraintEBLeftSide;
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.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HorizontalPanel;
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 PopupCreator {
private Constants constants = ((Constants) GWT.create( Constants.class ));
private static Images images = (Images) GWT.create( Images.class );
private FactPattern pattern;
private SuggestionCompletionEngine completions;
private RuleModeller modeller;
private boolean bindable;
/**
* Returns the pattern.
*/
public FactPattern getPattern() {
return pattern;
}
/**
* @param pattern the pattern to set
*/
public void setPattern(FactPattern pattern) {
this.pattern = pattern;
}
/**
* Returns the completions.
*/
public SuggestionCompletionEngine getCompletions() {
return completions;
}
/**
* @param completions the completions to set
*/
public void setCompletions(SuggestionCompletionEngine completions) {
this.completions = completions;
}
/**
* Returns the modeller.
*/
public RuleModeller getModeller() {
return modeller;
}
/**
* @param modeller the modeller to set
*/
public void setModeller(RuleModeller modeller) {
this.modeller = modeller;
}
/**
* Returns the bindable.
*/
public boolean isBindable() {
return bindable;
}
/**
* @param bindable the bindable to set
*/
public void setBindable(boolean bindable) {
this.bindable = bindable;
}
/**
* Display a little editor for field bindings.
*/
public void showBindFieldPopup(final Widget w,
final SingleFieldConstraint con,
String[] fields,
final PopupCreator popupCreator) {
final FormStylePopup popup = new FormStylePopup();
popup.setWidth( 500 + "px" );
final HorizontalPanel vn = new HorizontalPanel();
final TextBox varName = new TextBox();
final Button ok = new Button( constants.Set() );
vn.add( varName );
vn.add( ok );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
String var = varName.getText();
if ( modeller.isVariableNameUsed( var ) ) {
Window.alert( Format.format( constants.TheVariableName0IsAlreadyTaken(),
var ) );
return;
}
con.setFieldBinding( var );
modeller.refreshWidget();
popup.hide();
}
} );
popup.addAttribute( Format.format( constants.BindTheFieldCalled0ToAVariable(),
con.getFieldName() ),
vn );
if ( fields != null ) {
Button sub = new Button( constants.ShowSubFields() );
popup.addAttribute( Format.format( constants.ApplyAConstraintToASubFieldOf0(),
con.getFieldName() ),
sub );
sub.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
popup.hide();
popupCreator.showPatternPopup( w,
con.getFieldType(),
con );
}
} );
}
popup.show();
}
/**
* This shows a popup for adding fields to a composite
*/
public void showPatternPopupForComposite(Widget w,
final CompositeFieldConstraint composite) {
final FormStylePopup popup = new FormStylePopup( images.newexWiz(),
constants.AddFieldsToThisConstraint() );
final ListBox box = new ListBox();
box.addItem( "..." );
String[] fields = this.completions.getFieldCompletions( this.pattern.factType );
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[i] );
}
box.setSelectedIndex( 0 );
box.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
composite.addConstraint( new SingleFieldConstraint( box.getItemText( box.getSelectedIndex() ) ) );
modeller.refreshWidget();
popup.hide();
}
} );
popup.addAttribute( constants.AddARestrictionOnAField(),
box );
final ListBox composites = new ListBox();
composites.addItem( "..." ); //NON-NLS
composites.addItem( constants.AllOfAnd(),
CompositeFieldConstraint.COMPOSITE_TYPE_AND );
composites.addItem( constants.AnyOfOr(),
CompositeFieldConstraint.COMPOSITE_TYPE_OR );
composites.setSelectedIndex( 0 );
composites.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
CompositeFieldConstraint comp = new CompositeFieldConstraint();
comp.compositeJunctionType = composites.getValue( composites.getSelectedIndex() );
composite.addConstraint( comp );
modeller.refreshWidget();
popup.hide();
}
} );
InfoPopup infoComp = new InfoPopup( constants.MultipleFieldConstraints(),
constants.MultipleConstraintsTip() );
HorizontalPanel horiz = new HorizontalPanel();
horiz.add( composites );
horiz.add( infoComp );
popup.addAttribute( constants.MultipleFieldConstraint(),
horiz );
popup.show();
}
/**
* This shows a popup allowing you to add field constraints to a pattern (its a popup).
*/
public void showPatternPopup(Widget w,
final String factType,
final FieldConstraint con) {
String title = (con == null) ? Format.format( constants.ModifyConstraintsFor0(),
factType ) : constants.AddSubFieldConstraint();
final FormStylePopup popup = new FormStylePopup( images.newexWiz(),
title );
final ListBox box = new ListBox();
box.addItem( "..." );
String[] fields = this.completions.getFieldCompletions( FieldAccessorsAndMutators.ACCESSOR,
factType );
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[i] );
}
box.setSelectedIndex( 0 );
box.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
String fieldName = box.getItemText( box.getSelectedIndex() );
if ( "...".equals( fieldName ) ) {
return;
}
String qualifiedName = factType + "." + fieldName;
String fieldType = completions.getFieldType( qualifiedName );
pattern.addConstraint( new SingleFieldConstraint( fieldName,
fieldType,
con ) );
modeller.refreshWidget();
popup.hide();
}
} );
popup.addAttribute( constants.AddARestrictionOnAField(),
box );
final ListBox composites = new ListBox();
composites.addItem( "..." );
composites.addItem( constants.AllOfAnd(),
CompositeFieldConstraint.COMPOSITE_TYPE_AND );
composites.addItem( constants.AnyOfOr(),
CompositeFieldConstraint.COMPOSITE_TYPE_OR );
composites.setSelectedIndex( 0 );
composites.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
CompositeFieldConstraint comp = new CompositeFieldConstraint();
comp.compositeJunctionType = composites.getValue( composites.getSelectedIndex() );
pattern.addConstraint( comp );
modeller.refreshWidget();
popup.hide();
}
} );
InfoPopup infoComp = new InfoPopup( constants.MultipleFieldConstraints(),
constants.MultipleConstraintsTip1() );
HorizontalPanel horiz = new HorizontalPanel();
horiz.add( composites );
horiz.add( infoComp );
if ( con == null ) {
popup.addAttribute( constants.MultipleFieldConstraint(),
horiz );
}
if ( con == null ) {
popup.addRow( new SmallLabel( "<i>" + constants.AdvancedOptionsColon() + "</i>" ) ); //NON-NLS
Button predicate = new Button( constants.NewFormula() );
predicate.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
SingleFieldConstraint con = new SingleFieldConstraint();
con.setConstraintValueType( SingleFieldConstraint.TYPE_PREDICATE );
pattern.addConstraint( con );
modeller.refreshWidget();
popup.hide();
}
} );
popup.addAttribute( constants.AddANewFormulaStyleExpression(),
predicate );
Button ebBtn = new Button( constants.ExpressionEditor() );
ebBtn.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
SingleFieldConstraintEBLeftSide con = new SingleFieldConstraintEBLeftSide();
con.setConstraintValueType( SingleFieldConstraint.TYPE_UNDEFINED );
pattern.addConstraint( con );
con.setExpressionLeftSide( new ExpressionFormLine( new ExpressionUnboundFact( pattern ) ) );
modeller.refreshWidget();
popup.hide();
}
} );
popup.addAttribute( constants.ExpressionEditor(),
ebBtn );
doBindingEditor( popup );
}
popup.show();
}
/**
* This adds in (optionally) the editor for changing the bound variable name.
* If its a bindable pattern, it will show the editor,
* if it is already bound, and the name is used, it should
* not be editable.
*/
private void doBindingEditor(final FormStylePopup popup) {
if ( bindable || !(modeller.getModel().isBoundFactUsed( pattern.boundName )) ) {
HorizontalPanel varName = new HorizontalPanel();
final TextBox varTxt = new TextBox();
if ( pattern.boundName == null ) {
varTxt.setText( "" );
} else {
varTxt.setText( pattern.boundName );
}
varTxt.setVisibleLength( 6 );
varName.add( varTxt );
Button bindVar = new Button( constants.Set() );
bindVar.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
String var = varTxt.getText();
if ( modeller.isVariableNameUsed( var ) ) {
Window.alert( Format.format( constants.TheVariableName0IsAlreadyTaken(),
var ) );
return;
}
pattern.boundName = varTxt.getText();
modeller.refreshWidget();
popup.hide();
}
} );
varName.add( bindVar );
popup.addAttribute( constants.VariableName(),
varName );
}
}
}