/*
* Copyright 2012 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.workbench.screens.guided.rule.client.editor;
import java.util.Date;
import com.github.gwtbootstrap.client.ui.CheckBox;
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.dom.client.KeyUpEvent;
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.Window;
import com.google.gwt.user.client.ui.Composite;
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;
import org.drools.workbench.models.datamodel.oracle.DataType;
import org.drools.workbench.models.datamodel.rule.RuleAttribute;
import org.drools.workbench.models.datamodel.rule.RuleMetadata;
import org.drools.workbench.models.datamodel.rule.RuleModel;
import org.drools.workbench.screens.guided.rule.client.resources.GuidedRuleEditorResources;
import org.kie.workbench.common.widgets.client.resources.ItemImages;
import org.kie.workbench.common.widgets.client.widget.PopupDatePicker;
import org.kie.workbench.common.widgets.client.widget.TextBoxFactory;
import org.kie.uberfire.client.common.DirtyableHorizontalPane;
import org.kie.uberfire.client.common.FormStyleLayout;
import org.kie.uberfire.client.common.InfoPopup;
import org.kie.uberfire.client.common.SmallLabel;
/**
* Displays a list of rule options (attributes).
* <p/>
* Added support for metadata - Michael Rhoden 10/17/08
*/
public class RuleAttributeWidget extends Composite {
/**
* These are the names of all of the rule attributes for this widget
*/
public static final String SALIENCE_ATTR = "salience"; // needs to be public
public static final String ENABLED_ATTR = "enabled";
public static final String DATE_EFFECTIVE_ATTR = "date-effective";
public static final String DATE_EXPIRES_ATTR = "date-expires";
public static final String NO_LOOP_ATTR = "no-loop";
public static final String AGENDA_GROUP_ATTR = "agenda-group";
public static final String ACTIVATION_GROUP_ATTR = "activation-group";
public static final String DURATION_ATTR = "duration";
public static final String TIMER_ATTR = "timer";
public static final String CALENDARS_ATTR = "calendars";
public static final String AUTO_FOCUS_ATTR = "auto-focus";
public static final String LOCK_ON_ACTIVE_ATTR = "lock-on-active";
public static final String RULEFLOW_GROUP_ATTR = "ruleflow-group";
public static final String DIALECT_ATTR = "dialect";
public static final String LOCK_LHS = "freeze_conditions";
public static final String LOCK_RHS = "freeze_actions";
public static final String DEFAULT_DIALECT = "mvel";
public static final String[] DIALECTS = { "java", "mvel" };
/**
* If the rule attribute is represented visually by a checkbox, these are
* the values that will be stored in the model when checked/unchecked
*/
private static final String TRUE_VALUE = "true";
private static final String FALSE_VALUE = "false";
private RuleModel model;
private RuleModeller parent;
public RuleAttributeWidget( final RuleModeller parent,
final RuleModel model,
final boolean isReadOnly ) {
this.parent = parent;
this.model = model;
FormStyleLayout layout = new FormStyleLayout();
//Adding metadata here, seems redundant to add a new widget for metadata. Model does handle meta data separate.
RuleMetadata[] meta = model.metadataList;
if ( meta.length > 0 ) {
HorizontalPanel hp = new HorizontalPanel();
hp.add( new SmallLabel( GuidedRuleEditorResources.CONSTANTS.Metadata2() ) );
layout.addRow( hp );
}
for ( int i = 0; i < meta.length; i++ ) {
RuleMetadata rmd = meta[ i ];
layout.addAttribute( rmd.getAttributeName(),
getEditorWidget( rmd,
i,
isReadOnly ) );
}
RuleAttribute[] attrs = model.attributes;
if ( attrs.length > 0 ) {
HorizontalPanel hp = new HorizontalPanel();
hp.add( new SmallLabel( GuidedRuleEditorResources.CONSTANTS.Attributes1() ) );
layout.addRow( hp );
}
for ( int i = 0; i < attrs.length; i++ ) {
RuleAttribute at = attrs[ i ];
layout.addAttribute( at.getAttributeName(),
getEditorWidget( at,
i,
isReadOnly ) );
}
initWidget( layout );
}
/**
* Return a listbox of choices for rule attributes.
* @return
*/
public static ListBox getAttributeList() {
ListBox list = new ListBox();
list.addItem( GuidedRuleEditorResources.CONSTANTS.Choose() );
list.addItem( SALIENCE_ATTR );
list.addItem( ENABLED_ATTR );
list.addItem( DATE_EFFECTIVE_ATTR );
list.addItem( DATE_EXPIRES_ATTR );
list.addItem( NO_LOOP_ATTR );
list.addItem( AGENDA_GROUP_ATTR );
list.addItem( ACTIVATION_GROUP_ATTR );
list.addItem( DURATION_ATTR );
list.addItem( TIMER_ATTR );
list.addItem( CALENDARS_ATTR );
list.addItem( AUTO_FOCUS_ATTR );
list.addItem( LOCK_ON_ACTIVE_ATTR );
list.addItem( RULEFLOW_GROUP_ATTR );
list.addItem( DIALECT_ATTR );
return list;
}
private Widget getEditorWidget( final RuleAttribute at,
final int idx,
final boolean isReadOnly ) {
Widget editor = null;
final String attributeName = at.getAttributeName();
if ( attributeName.equals( RULEFLOW_GROUP_ATTR )
|| attributeName.equals( AGENDA_GROUP_ATTR )
|| attributeName.equals( ACTIVATION_GROUP_ATTR )
|| attributeName.equals( TIMER_ATTR )
|| attributeName.equals( CALENDARS_ATTR ) ) {
final TextBox tb = TextBoxFactory.getTextBox( DataType.TYPE_STRING );
tb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
tb.addValueChangeHandler( new ValueChangeHandler<String>() {
public void onValueChange( ValueChangeEvent<String> event ) {
at.setValue( tb.getValue() );
}
} );
}
tb.setValue( at.getValue() );
editor = tb;
} else if ( attributeName.equals( SALIENCE_ATTR ) ) {
final TextBox tb = TextBoxFactory.getTextBox( DataType.TYPE_NUMERIC_INTEGER );
tb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
tb.addValueChangeHandler( new ValueChangeHandler<String>() {
public void onValueChange( ValueChangeEvent<String> event ) {
at.setValue( tb.getValue() );
}
} );
}
tb.setValue( at.getValue() );
editor = tb;
} else if ( attributeName.equals( DURATION_ATTR ) ) {
final TextBox tb = TextBoxFactory.getTextBox( DataType.TYPE_NUMERIC_LONG );
tb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
tb.addValueChangeHandler( new ValueChangeHandler<String>() {
public void onValueChange( ValueChangeEvent<String> event ) {
at.setValue( tb.getValue() );
}
} );
}
tb.setValue( at.getValue() );
editor = tb;
} else if ( attributeName.equals( NO_LOOP_ATTR )
|| attributeName.equals( LOCK_ON_ACTIVE_ATTR )
|| attributeName.equals( AUTO_FOCUS_ATTR )
|| attributeName.equals( ENABLED_ATTR ) ) {
editor = checkBoxEditor( at,
isReadOnly );
} else if ( attributeName.equals( DATE_EFFECTIVE_ATTR )
|| attributeName.equals( DATE_EXPIRES_ATTR ) ) {
if ( isReadOnly ) {
final TextBox tb = TextBoxFactory.getTextBox( DataType.TYPE_STRING );
tb.setValue( at.getValue() );
tb.setEnabled( false );
} else {
final PopupDatePicker dp = new PopupDatePicker( false );
dp.addValueChangeHandler( new ValueChangeHandler<Date>() {
public void onValueChange( ValueChangeEvent<Date> event ) {
at.setValue( PopupDatePicker.convertToString( event ) );
}
} );
dp.setValue( at.getValue() );
editor = dp;
}
} else if ( attributeName.equals( DIALECT_ATTR ) ) {
final ListBox lb = new ListBox();
lb.addItem( DIALECTS[ 0 ] );
lb.addItem( DIALECTS[ 1 ] );
lb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
lb.addChangeHandler( new ChangeHandler() {
@Override
public void onChange( ChangeEvent event ) {
final int selectedIndex = lb.getSelectedIndex();
if ( selectedIndex < 0 ) {
return;
}
at.setValue( lb.getValue( selectedIndex ) );
}
} );
}
if ( at.getValue() == null || at.getValue().isEmpty() ) {
lb.setSelectedIndex( 1 );
at.setValue( DIALECTS[ 1 ] );
} else if ( at.getValue().equals( DIALECTS[ 0 ] ) ) {
lb.setSelectedIndex( 0 );
} else if ( at.getValue().equals( DIALECTS[ 1 ] ) ) {
lb.setSelectedIndex( 1 );
} else {
lb.setSelectedIndex( 1 );
at.setValue( DIALECTS[ 1 ] );
}
editor = lb;
}
DirtyableHorizontalPane horiz = new DirtyableHorizontalPane();
if ( editor != null ) {
horiz.add( editor );
if ( !isReadOnly ) {
horiz.add( getRemoveIcon( idx ) );
}
}
return horiz;
}
private Widget getEditorWidget( final RuleMetadata rm,
final int idx,
final boolean isReadOnly ) {
Widget editor;
if ( rm.getAttributeName().equals( LOCK_LHS ) || rm.getAttributeName().equals( LOCK_RHS ) ) {
editor = new InfoPopup( GuidedRuleEditorResources.CONSTANTS.FrozenAreas(),
GuidedRuleEditorResources.CONSTANTS.FrozenExplanation() );
} else {
editor = textBoxEditor( rm,
isReadOnly );
}
DirtyableHorizontalPane horiz = new DirtyableHorizontalPane();
horiz.add( editor );
if ( !isReadOnly ) {
horiz.add( getRemoveMetaIcon( idx ) );
}
return horiz;
}
private Widget checkBoxEditor( final RuleAttribute at,
final boolean isReadOnly ) {
final CheckBox box = new CheckBox();
box.setEnabled( !isReadOnly );
if ( at.getValue() == null || at.getValue().isEmpty() ) {
box.setValue( false );
at.setValue( FALSE_VALUE );
} else {
box.setValue( ( at.getValue().equals( TRUE_VALUE ) ) );
}
box.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent event ) {
at.setValue( ( box.getValue() ) ? TRUE_VALUE : FALSE_VALUE );
}
} );
return box;
}
private TextBox textBoxEditor( final RuleMetadata rm,
final boolean isReadOnly ) {
final TextBox box = new TextBox();
box.setEnabled( !isReadOnly );
box.setVisibleLength( ( rm.getValue().length() < 3 ) ? 3 : rm.getValue().length() );
box.setText( rm.getValue() );
box.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
rm.setValue( box.getText() );
}
} );
box.addKeyUpHandler( new KeyUpHandler() {
public void onKeyUp( KeyUpEvent event ) {
box.setVisibleLength( box.getText().length() );
}
} );
return box;
}
private Image getRemoveIcon( final int idx ) {
Image remove = new Image( ItemImages.INSTANCE.deleteItemSmall() );
remove.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent event ) {
if ( Window.confirm( GuidedRuleEditorResources.CONSTANTS.RemoveThisRuleOption() ) ) {
model.removeAttribute( idx );
parent.refreshWidget();
}
}
} );
return remove;
}
private Image getRemoveMetaIcon( final int idx ) {
Image remove = new Image( ItemImages.INSTANCE.deleteItemSmall() );
remove.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent event ) {
if ( Window.confirm( GuidedRuleEditorResources.CONSTANTS.RemoveThisRuleOption() ) ) {
model.removeMetadata( idx );
parent.refreshWidget();
}
}
} );
return remove;
}
}