/*
* Copyright 2005 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.ruleeditor;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.user.client.ui.*;
import org.drools.guvnor.client.messages.Constants;
import org.drools.ide.common.client.modeldriven.brl.DSLSentence;
import java.util.List;
/**
* This is a popup list for "content assistance" - although on the web,
* its not assistance - its mandatory ;)
*/
public class ChoiceList extends PopupPanel {
private ListBox list;
private final DSLSentence[] sentences;
private TextBox filter;
/**
* Pass in a list of suggestions for the popup lists.
* Set a click listener to get notified when the OK button is clicked.
*/
public ChoiceList(final DSLSentence[] sen,
final DSLRuleEditor self) {
super(true);
setGlassEnabled(true);
this.sentences = sen;
filter = new TextBox();
filter.setWidth("100%");
Constants constants = ((Constants) GWT.create(Constants.class));
final String defaultMessage = constants.enterTextToFilterList();
filter.setText(defaultMessage);
filter.addFocusHandler(new FocusHandler() {
public void onFocus(FocusEvent event) {
filter.setText("");
}
});
filter.addBlurHandler(new BlurHandler() {
public void onBlur(BlurEvent event) {
filter.setText(defaultMessage);
}
});
filter.addKeyUpHandler(new KeyUpHandler() {
public void onKeyUp(KeyUpEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
applyChoice(self);
} else {
populateList(ListUtil.filter(sentences,
filter.getText()));
}
}
});
filter.setFocus(true);
VerticalPanel panel = new VerticalPanel();
panel.add(filter);
list = new ListBox();
list.setVisibleItemCount(5);
populateList(ListUtil.filter(this.sentences,
""));
panel.add(list);
Button ok = new Button(constants.OK());
ok.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
applyChoice(self);
}
});
Button cancel = new Button(constants.Cancel());
cancel.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
hide();
}
});
HorizontalPanel buttons = new HorizontalPanel();
buttons.add(ok);
buttons.add(cancel);
panel.add(buttons);
add(panel);
setStyleName("ks-popups-Popup"); //NON-NLS
}
private void applyChoice(final DSLRuleEditor self) {
self.insertText(getSelectedItem());
hide();
}
private void populateList(List<DSLSentence> filtered) {
list.clear();
for (int i = 0; i < filtered.size(); i++) {
list.addItem(((DSLSentence) filtered.get(i)).getDefinition());
}
}
public String getSelectedItem() {
return list.getItemText(list.getSelectedIndex());
}
}