/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* 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.workbench.screens.guided.rule.client.widget;
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.event.shared.EventBus;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Widget;
import org.drools.workbench.models.datamodel.rule.FactPattern;
import org.drools.workbench.models.datamodel.rule.FromCompositeFactPattern;
import org.drools.workbench.screens.guided.rule.client.editor.RuleModeller;
import org.drools.workbench.screens.guided.rule.client.resources.GuidedRuleEditorResources;
import org.drools.workbench.screens.guided.rule.client.resources.images.GuidedRuleEditorImages508;
import org.gwtbootstrap3.client.ui.ListBox;
import org.kie.workbench.common.widgets.client.datamodel.AsyncPackageDataModelOracle;
import org.kie.workbench.common.widgets.client.resources.HumanReadable;
import org.uberfire.ext.widgets.common.client.common.ClickableLabel;
import com.google.gwt.user.client.ui.FlexTable;
import org.uberfire.ext.widgets.common.client.common.DirtyableHorizontalPane;
import org.uberfire.ext.widgets.common.client.common.popups.FormStylePopup;
public class FromCompositeFactPatternWidget extends RuleModellerWidget {
protected FromCompositeFactPattern pattern;
protected FlexTable layout;
protected boolean readOnly;
protected boolean isFactTypeKnown;
public FromCompositeFactPatternWidget( RuleModeller modeller,
EventBus eventBus,
FromCompositeFactPattern pattern ) {
this( modeller,
eventBus,
pattern,
null );
}
public FromCompositeFactPatternWidget( RuleModeller modeller,
EventBus eventBus,
FromCompositeFactPattern pattern,
Boolean readOnly ) {
super( modeller,
eventBus );
this.pattern = pattern;
//if readOnly is null, the readOnly attribute is calculated.
if ( readOnly == null ) {
this.calculateReadOnly();
} else {
this.readOnly = readOnly;
this.isFactTypeKnown = true;
}
this.layout = new FlexTable();
if ( this.readOnly ) {
this.layout.addStyleName( "editor-disabled-widget" );
}
doLayout();
initWidget( layout );
}
protected void doLayout() {
int row = 0;
if ( pattern.getFactPattern() != null ) {
FactPattern fact = pattern.getFactPattern();
if ( fact != null ) {
this.layout.setWidget( row++,
0,
createFactPatternWidget( fact ) );
}
}
this.layout.setWidget( row++,
0,
getCompositeLabel() );
}
private Widget createFactPatternWidget( FactPattern fact ) {
FactPatternWidget factPatternWidget;
if ( this.readOnly ) {
//creates a new read-only FactPatternWidget
factPatternWidget = new FactPatternWidget( this.getModeller(),
this.getEventBus(),
fact,
false,
true );
//this.layout.setWidget( 0, 0, factPatternWidget );
return factPatternWidget;
} else {
factPatternWidget = new FactPatternWidget( this.getModeller(),
this.getEventBus(),
fact,
true,
false );
factPatternWidget.addOnModifiedCommand( new Command() {
public void execute() {
setModified( true );
}
} );
//this.layout.setWidget( 0, 0, addRemoveButton( factPatternWidget, createClickHandlerForAddRemoveButton() ) );
return addRemoveButton( factPatternWidget,
createClickHandlerForAddRemoveButton() );
}
}
private ClickHandler createClickHandlerForAddRemoveButton() {
return new ClickHandler() {
public void onClick( ClickEvent event ) {
if ( Window.confirm( GuidedRuleEditorResources.CONSTANTS.RemoveThisEntireConditionQ() ) ) {
setModified( true );
pattern.setFactPattern( null );
getModeller().refreshWidget();
}
}
};
}
protected Widget getCompositeLabel() {
ClickHandler click = new ClickHandler() {
public void onClick( ClickEvent event ) {
Widget w = (Widget) event.getSource();
showFactTypeSelector( w );
}
};
String lbl = "<div class='form-field'>" + HumanReadable.getCEDisplayName( "from" ) + " </div>";
FlexTable panel = new FlexTable();
int r = 0;
if ( pattern.getFactPattern() == null ) {
panel.setWidget( r,
0,
new ClickableLabel( "<br> <font color='red'>" + GuidedRuleEditorResources.CONSTANTS.clickToAddPatterns() + "</font>",
click,
!this.readOnly ) );
r++;
}
panel.setWidget( r,
0,
new HTML( lbl ) );
ExpressionBuilder expressionBuilder = new ExpressionBuilder( this.getModeller(),
this.getEventBus(),
this.pattern.getExpression(),
this.readOnly );
expressionBuilder.addOnModifiedCommand( new Command() {
public void execute() {
setModified( true );
}
} );
panel.setWidget( r,
1,
expressionBuilder );
return panel;
}
/**
* Pops up the fact selector.
*/
protected void showFactTypeSelector( final Widget w ) {
AsyncPackageDataModelOracle oracle = this.getModeller().getDataModelOracle();
final ListBox box = new ListBox();
String[] facts = oracle.getFactTypes();
box.addItem( GuidedRuleEditorResources.CONSTANTS.Choose() );
for ( int i = 0; i < facts.length; i++ ) {
box.addItem( facts[ i ] );
}
box.setSelectedIndex( 0 );
final FormStylePopup popup = new FormStylePopup( GuidedRuleEditorResources.CONSTANTS.NewFactPattern() );
popup.addAttribute( GuidedRuleEditorResources.CONSTANTS.chooseFactType(),
box );
box.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
pattern.setFactPattern( new FactPattern( box.getItemText( box.getSelectedIndex() ) ) );
setModified( true );
getModeller().refreshWidget();
popup.hide();
}
} );
popup.show();
}
protected Widget addRemoveButton( Widget w,
ClickHandler listener ) {
DirtyableHorizontalPane horiz = new DirtyableHorizontalPane();
final Image remove = GuidedRuleEditorImages508.INSTANCE.DeleteItemSmall();
remove.setAltText( GuidedRuleEditorResources.CONSTANTS.RemoveThisBlockOfData() );
remove.setTitle( GuidedRuleEditorResources.CONSTANTS.RemoveThisBlockOfData() );
remove.addClickHandler( listener );
horiz.setWidth( "100%" );
w.setWidth( "100%" );
horiz.add( w );
if ( !this.readOnly ) {
horiz.add( remove );
}
return horiz;
}
protected void calculateReadOnly() {
if ( this.pattern.getFactPattern() != null ) {
this.isFactTypeKnown = this.getModeller().getDataModelOracle().isFactTypeRecognized( this.pattern.getFactPattern().getFactType() );
this.readOnly = !this.isFactTypeKnown;
}
}
@Override
public boolean isReadOnly() {
return this.readOnly;
}
@Override
public boolean isFactTypeKnown() {
return this.isFactTypeKnown;
}
}