com.google.gwt.dom.client.BodyElement Maven / Gradle / Ivy
/*
* 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.dom.client;
import com.google.gwt.core.client.JavaScriptObject;
/**
* The HTML document body. This element is always present in the DOM API, even
* if the tags are not present in the source document.
*
* @see W3C HTML Specification
*/
@TagName(BodyElement.TAG)
public class BodyElement extends Element {
public static final String TAG = "body";
/**
* Assert that the given {@link Element} is compatible with this class and
* automatically typecast it.
*/
public static BodyElement as(Element elem) {
assert is(elem);
return (BodyElement) elem;
}
/**
* Determines whether the given {@link JavaScriptObject} can be cast to
* this class. A null object will cause this method to
* return false.
*/
public static boolean is(JavaScriptObject o) {
if (Element.is(o)) {
return is((Element) o);
}
return false;
}
/**
* Determine whether the given {@link Node} can be cast to this class.
* A null node will cause this method to return
* false.
*/
public static boolean is(Node node) {
if (Element.is(node)) {
return is((Element) node);
}
return false;
}
/**
* Determine whether the given {@link Element} can be cast to this class.
* A null node will cause this method to return
* false.
*/
public static boolean is(Element elem) {
return elem != null && elem.hasTagName(TAG);
}
protected BodyElement() {
}
}