/**
* Copyright 2009 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 org.waveprotocol.wave.client.editor.content.paragraph;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Node;
import org.waveprotocol.wave.model.document.util.Point;
/**
* Helper for some IE-specific quirks
*
* @author danilatos@google.com (Daniel Danilatos)
*/
public final class IeNodeletHelper {
/**
* Some IE element classes require their html nodelets be attached to
* somewhere under the body of html document in order for implementation to
* work. See, e.g., {@link ParagraphHelperIE#onEmpty(Element)}
*/
public static Point<Node> beforeImplementation(Element nodelet) {
// Get point after nodelet
Point<Node> point = nodelet.getParentNode() != null ?
Point.inElement(nodelet.getParentNode(), nodelet.getNextSibling()) : null;
// Attach nodelet to document body
Document.get().getBody().appendChild(nodelet);
return point;
}
/**
* Complement to {@link #beforeImplementation(Element)}. Pass in the point
* returned by that method.
*/
public static void afterImplementation(Element nodelet, Point<Node> point) {
// Place nodelet back where it came from
if (point != null) {
point.getContainer().insertBefore(nodelet, point.getNodeAfter());
}
}
}