sf.wicklet.gwt.client.util.GwtDomUtil.java Source code

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Here is the source code for sf.wicklet.gwt.client.util.GwtDomUtil.java

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/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You should have received a copy of  the license along with this library.
 * You may also obtain a copy of the License at
 *         http://www.apache.org/licenses/LICENSE-2.0.
 */
package sf.wicklet.gwt.client.util;

import com.google.gwt.user.client.DOM;

public class GwtDomUtil {

    public static com.google.gwt.user.client.Element findAndDetach(final Object id) {
        final com.google.gwt.user.client.Element e = DOM.getElementById(id.toString());
        if (e != null) {
            e.removeFromParent();
        }
        return e;
    }

    public static void removeChildren(final com.google.gwt.dom.client.Element e) {
        if (e == null) {
            return;
        }
        for (com.google.gwt.dom.client.Node c; (c = e.getFirstChild()) != null;) {
            e.removeChild(c);
        }
    }

    public static void clear(final com.google.gwt.dom.client.Element e) {
        if (e == null) {
            return;
        }
        e.setInnerHTML("");
    }

    public static void replace(final com.google.gwt.dom.client.Element oelm,
            final com.google.gwt.dom.client.Element nelm) {
        final com.google.gwt.dom.client.Node parent = oelm.getParentNode();
        final com.google.gwt.dom.client.Node mark = oelm.getNextSibling();
        parent.removeChild(oelm);
        parent.insertBefore(nelm, mark);
    }

    public static boolean hasElementWithAttributeValue(final String tag, final String name, final String value) {
        return hasElementWithAttributeValue(com.google.gwt.dom.client.Document.get(), tag, name, value);
    }

    public static boolean hasElementWithAttributeValue(final com.google.gwt.dom.client.Document d, final String tag,
            final String name, final String value) {
        final com.google.gwt.dom.client.NodeList<com.google.gwt.dom.client.Element> a = d.getElementsByTagName(tag);
        for (int i = 0, len = a.getLength(); i < len; ++i) {
            final com.google.gwt.dom.client.Element elm = a.getItem(i);
            if (GwtTextUtil.equals(value, elm.getAttribute(name))) {
                return true;
            }
        }
        return false;
    }
}