/**
* Copyright 2011 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.doodad.selection;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import org.waveprotocol.wave.client.common.util.DomHelper;
import org.waveprotocol.wave.client.doodad.selection.SelectionAnnotationHandler.CaretViewFactory;
import org.waveprotocol.wave.client.editor.content.ContentElement;
import org.waveprotocol.wave.client.editor.content.Renderer;
import org.waveprotocol.wave.client.editor.impl.NodeManager;
import org.waveprotocol.wave.model.document.util.FilteredView.Skip;
/**
* Renderer for the caret marker place holder, and responsible for attachment of
* a marker into said place holder.
*
* @author danilatos@google.com (Daniel Danilatos)
*/
public class CaretMarkerRenderer implements Renderer, CaretViewFactory {
/** Doodad tag information to relate to this renderer. */
public static final String NS = "l";
public static final String TAGNAME = "uname";
public static final String FULL_TAGNAME = NS + ":" + TAGNAME;
/** Singleton instance: */
private static final CaretMarkerRenderer instance = new CaretMarkerRenderer();
public static CaretMarkerRenderer getInstance() {
return instance;
}
private CaretMarkerRenderer() { }
@Override
public Element createDomImpl(Renderable element) {
Element renderSpan = Document.get().createSpanElement();
DomHelper.makeUnselectable(renderSpan);
NodeManager.setTransparency(renderSpan, Skip.DEEP);
return renderSpan;
}
@Override
public CaretView createMarker() {
return new CaretWidget();
}
public void setMarker(Object element, CaretView marker) {
// Hack for bug 2868754
Element impl = ((ContentElement) element).getImplNodelet();
if (impl != null) {
impl.appendChild(
((CaretWidget) marker).getElement());
}
}
}