/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.client.ui.dd;
import com.vaadin.client.UIDL;
import com.vaadin.client.VConsole;
import com.vaadin.event.dd.acceptcriteria.Not;
import com.vaadin.shared.ui.dd.AcceptCriterion;
/**
* TODO implementation could now be simplified/optimized
*
*/
@AcceptCriterion(Not.class)
final public class VNot extends VAcceptCriterion {
private boolean b1;
private VAcceptCriterion crit1;
@Override
public void accept(VDragEvent drag, UIDL configuration,
VAcceptCallback callback) {
if (crit1 == null) {
crit1 = getCriteria(drag, configuration, 0);
if (crit1 == null) {
VConsole.log("Not criteria didn't found a child criteria");
return;
}
}
b1 = false;
VAcceptCallback accept1cb = new VAcceptCallback() {
@Override
public void accepted(VDragEvent event) {
b1 = true;
}
};
crit1.accept(drag, configuration.getChildUIDL(0), accept1cb);
if (!b1) {
callback.accepted(drag);
}
}
private VAcceptCriterion getCriteria(VDragEvent drag, UIDL configuration,
int i) {
UIDL childUIDL = configuration.getChildUIDL(i);
return VAcceptCriteria.get(childUIDL.getStringAttribute("name"));
}
@Override
public boolean needsServerSideCheck(VDragEvent drag, UIDL criterioUIDL) {
return false; // TODO enforce on server side
}
@Override
protected boolean accept(VDragEvent drag, UIDL configuration) {
return false; // not used
}
}