| /* |
| * Copyright 2008 Google 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 com.google.gwt.user.client.ui; |
| |
| import com.google.gwt.dom.client.Document; |
| import com.google.gwt.dom.client.Element; |
| import com.google.gwt.dom.client.InputElement; |
| |
| /** |
| * A simple radio button widget, with no label. |
| * |
| * <h3>CSS Style Rules</h3> |
| * <ul class='css'> |
| * <li>.gwt-SimpleRadioButton { }</li> |
| * <li>.gwt-SimpleRadioButton-disabled { Applied when radio button is disabled }</li> |
| * </ul> |
| */ |
| public class SimpleRadioButton extends SimpleCheckBox { |
| |
| /** |
| * Creates a SimpleRadioButton widget that wraps an existing <input |
| * type='radio'> element. |
| * |
| * This element must already be attached to the document. If the element is |
| * removed from the document, you must call |
| * {@link RootPanel#detachNow(Widget)}. |
| * |
| * @param element the element to be wrapped |
| */ |
| public static SimpleRadioButton wrap(Element element) { |
| // Assert that the element is attached. |
| assert Document.get().getBody().isOrHasChild(element); |
| |
| SimpleRadioButton radioButton = new SimpleRadioButton(element); |
| |
| // Mark it attached and remember it for cleanup. |
| radioButton.onAttach(); |
| RootPanel.detachOnWindowClose(radioButton); |
| |
| return radioButton; |
| } |
| |
| /** |
| * Creates a new radio associated with a particular group name. All radio |
| * buttons associated with the same group name belong to a mutually-exclusive |
| * set. |
| * |
| * Radio buttons are grouped by their name attribute, so changing their name |
| * using the setName() method will also change their associated group. |
| * |
| * @param name the group name with which to associate the radio button |
| */ |
| public SimpleRadioButton(String name) { |
| super(Document.get().createRadioInputElement(name), "gwt-SimpleRadioButton"); |
| } |
| |
| /** |
| * This constructor may be used by subclasses to explicitly use an existing |
| * element. This element must be an <input> element whose type is |
| * 'radio'. |
| * |
| * @param element the element to be used |
| */ |
| protected SimpleRadioButton(Element element) { |
| super(element, null); |
| assert InputElement.as(element).getType().equalsIgnoreCase("radio"); |
| } |
| } |