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Vaadin is a web application framework for Rich Internet Applications (RIA).
Vaadin enables easy development and maintenance of fast and
secure rich web
applications with a stunning look and feel and a wide browser support.
It features a server-side architecture with the majority of the logic
running
on the server. Ajax technology is used at the browser-side to ensure a
rich
and interactive user experience.
/*
* Copyright 2000-2016 Vaadin Ltd.
*
* 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 com.vaadin.client.ui;
import java.util.Objects;
import com.google.gwt.event.dom.client.HasAllFocusHandlers;
import com.google.gwt.user.client.ui.ListBox;
import com.vaadin.client.widgets.FocusableFlowPanelComposite;
/**
* The client-side widget for the {@code NativeSelect} component.
*
* @author Vaadin Ltd.
*/
public class VNativeSelect extends FocusableFlowPanelComposite
implements HasAllFocusHandlers {
private final ListBox listBox = new ListBox();
/**
* Creates a new {@code VNativeSelect} instance.
*/
public VNativeSelect() {
getWidget().add(listBox);
}
/**
* Sets the selected item by its value. If given {@code null}, removes
* selection.
*
* @param value
* the value of the item to select or {@code null} to select
* nothing
*/
public void setSelectedItem(String value) {
if (value == null) {
getListBox().setSelectedIndex(-1);
} else {
for (int i = 0; i < getListBox().getItemCount(); i++) {
if (Objects.equals(value, getListBox().getValue(i))) {
getListBox().setSelectedIndex(i);
break;
}
}
}
}
/**
* Sets the tab index.
*
* @param tabIndex
* the tab index to set
*/
public void setTabIndex(int tabIndex) {
getListBox().setTabIndex(tabIndex);
}
/**
* Gets the underlying ListBox widget that this widget wraps.
*
* @return the ListBox this widget wraps
*/
public ListBox getListBox() {
return listBox;
}
}