/*
* 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.editor;
import com.google.gwt.event.dom.client.KeyCodes;
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.Command;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Widget;
import org.drools.workbench.models.datamodel.rule.CompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.DSLSentence;
import org.drools.workbench.models.datamodel.rule.FactPattern;
import org.drools.workbench.models.datamodel.rule.FreeFormLine;
import org.drools.workbench.models.datamodel.rule.FromAccumulateCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCollectCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromEntryPointFactPattern;
import org.drools.workbench.models.datamodel.rule.RuleModel;
import org.drools.workbench.screens.guided.rule.client.resources.GuidedRuleEditorResources;
import org.gwtbootstrap3.client.ui.CheckBox;
import org.gwtbootstrap3.client.ui.ListBox;
import org.gwtbootstrap3.client.ui.ModalBody;
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.InfoPopup;
import org.uberfire.ext.widgets.common.client.common.popups.footers.ModalFooterOKCancelButtons;
/**
* Pop-up for adding Conditions to the (RuleModeller) guided editor
*/
public class RuleModellerConditionSelectorPopup extends AbstractRuleModellerSelectorPopup {
private final Command okCommand = new Command() {
@Override
public void execute() {
selectSomething();
}
};
private final Command cancelCommand = new Command() {
@Override
public void execute() {
hide();
}
};
public RuleModellerConditionSelectorPopup(final RuleModel model,
final RuleModeller ruleModeller,
final Integer position,
final AsyncPackageDataModelOracle oracle) {
super(model,
ruleModeller,
position,
oracle);
add(new ModalBody() {{
add(getContent());
}});
add(new ModalFooterOKCancelButtons(okCommand,
cancelCommand));
}
@Override
protected String getPopupTitle() {
return GuidedRuleEditorResources.CONSTANTS.AddAConditionToTheRule();
}
@Override
public Widget getContent() {
if (position == null) {
positionCbo.addItem(GuidedRuleEditorResources.CONSTANTS.Bottom(),
String.valueOf(this.model.lhs.length));
positionCbo.addItem(GuidedRuleEditorResources.CONSTANTS.Top(),
"0");
for (int i = 1; i < model.lhs.length; i++) {
positionCbo.addItem(GuidedRuleEditorResources.CONSTANTS.Line0(i),
String.valueOf(i));
}
} else {
//if position is fixed, we just add one element to the drop down.
positionCbo.addItem(String.valueOf(position));
positionCbo.setSelectedIndex(0);
}
if (oracle.getDSLConditions().size() == 0 && oracle.getFactTypes().length == 0) {
layoutPanel.addRow(new HTML("<div class='highlight'>" + GuidedRuleEditorResources.CONSTANTS.NoModelTip() + "</div>"));
}
//only show the drop down if we are not using fixed position.
if (position == null) {
HorizontalPanel hp0 = new HorizontalPanel();
hp0.add(new HTML(GuidedRuleEditorResources.CONSTANTS.PositionColon()));
hp0.add(positionCbo);
hp0.add(new InfoPopup(GuidedRuleEditorResources.CONSTANTS.PositionColon(),
GuidedRuleEditorResources.CONSTANTS.ConditionPositionExplanation()));
layoutPanel.addRow(hp0);
layoutPanel.addRow(new HTML("<hr/>"));
}
choices = makeChoicesListBox();
choicesPanel.add(choices);
layoutPanel.addRow(choicesPanel);
//DSL might be prohibited (e.g. editing a DRL file. Only DSLR files can contain DSL)
if (ruleModeller.isDSLEnabled()) {
CheckBox chkOnlyDisplayDSLConditions = new CheckBox();
chkOnlyDisplayDSLConditions.setText(GuidedRuleEditorResources.CONSTANTS.OnlyDisplayDSLConditions());
chkOnlyDisplayDSLConditions.setValue(onlyShowDSLStatements);
chkOnlyDisplayDSLConditions.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
public void onValueChange(ValueChangeEvent<Boolean> event) {
onlyShowDSLStatements = event.getValue();
choicesPanel.setWidget(makeChoicesListBox());
}
});
layoutPanel.addRow(chkOnlyDisplayDSLConditions);
}
return layoutPanel;
}
@Override
public void show() {
super.show();
choices.setFocus(true);
}
private ListBox makeChoicesListBox() {
choices = new ListBox(true);
choices.setPixelSize(getChoicesWidth(),
getChoicesHeight());
choices.addKeyUpHandler(new KeyUpHandler() {
public void onKeyUp(com.google.gwt.event.dom.client.KeyUpEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
selectSomething();
}
}
});
addDSLSentences();
if (!onlyShowDSLStatements) {
addFacts();
addExistentialConditionalElements();
addFromConditionalElements();
addFreeFormDrl();
}
return choices;
}
// The list of DSL sentences
private void addDSLSentences() {
//DSL might be prohibited (e.g. editing a DRL file. Only DSLR files can contain DSL)
if (!ruleModeller.isDSLEnabled()) {
return;
}
for (final DSLSentence sen : oracle.getDSLConditions()) {
final String sentence = sen.toString();
final String key = "DSL" + sentence;
choices.addItem(sentence,
key);
cmds.put(key,
new Command() {
public void execute() {
addNewDSLLhs(sen,
Integer.parseInt(positionCbo.getValue(positionCbo.getSelectedIndex())));
hide();
}
});
}
}
// The list of facts
private void addFacts() {
if (oracle.getFactTypes().length > 0) {
choices.addItem(SECTION_SEPARATOR);
for (int i = 0; i < oracle.getFactTypes().length; i++) {
final String f = oracle.getFactTypes()[i];
String key = "NF" + f;
choices.addItem(f + " ...",
key);
cmds.put(key,
new Command() {
public void execute() {
addNewFact(f,
Integer.parseInt(positionCbo.getValue(positionCbo.getSelectedIndex())));
hide();
}
});
}
}
}
// The list of existential CEs
private void addExistentialConditionalElements() {
String ces[] = HumanReadable.CONDITIONAL_ELEMENTS;
choices.addItem(SECTION_SEPARATOR);
for (int i = 0; i < ces.length; i++) {
final String ce = ces[i];
String key = "CE" + ce;
choices.addItem(HumanReadable.getCEDisplayName(ce) + " ...",
key);
cmds.put(key,
new Command() {
public void execute() {
addNewCE(ce,
Integer.parseInt(positionCbo.getValue(positionCbo.getSelectedIndex())));
hide();
}
});
}
}
// The list of from CEs
private void addFromConditionalElements() {
String fces[] = HumanReadable.FROM_CONDITIONAL_ELEMENTS;
choices.addItem(SECTION_SEPARATOR);
for (int i = 0; i < fces.length; i++) {
final String ce = fces[i];
String key = "FCE" + ce;
choices.addItem(HumanReadable.getCEDisplayName(ce) + " ...",
key);
cmds.put(key,
new Command() {
public void execute() {
addNewFCE(ce,
Integer.parseInt(positionCbo.getValue(positionCbo.getSelectedIndex())));
hide();
}
});
}
}
// Free form DRL
private void addFreeFormDrl() {
choices.addItem(SECTION_SEPARATOR);
choices.addItem(GuidedRuleEditorResources.CONSTANTS.FreeFormDrl(),
"FF");
cmds.put("FF",
new Command() {
public void execute() {
model.addLhsItem(new FreeFormLine(),
Integer.parseInt(positionCbo.getValue(positionCbo.getSelectedIndex())));
hide();
}
});
}
private void addNewDSLLhs(final DSLSentence sentence,
int position) {
model.addLhsItem(sentence.copy(),
position);
}
private void addNewFact(String itemText,
int position) {
this.model.addLhsItem(new FactPattern(itemText),
position);
}
private void addNewCE(String s,
int position) {
this.model.addLhsItem(new CompositeFactPattern(s),
position);
}
private void addNewFCE(String type,
int position) {
FromCompositeFactPattern p = null;
if (type.equals("from")) {
p = new FromCompositeFactPattern();
} else if (type.equals("from accumulate")) {
p = new FromAccumulateCompositeFactPattern();
} else if (type.equals("from collect")) {
p = new FromCollectCompositeFactPattern();
} else if (type.equals("from entry-point")) {
p = new FromEntryPointFactPattern();
}
this.model.addLhsItem(p,
position);
}
}