/*
* Copyright 2000-2016 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.v7.client.ui.tree;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.UIDL;
import com.vaadin.client.ui.dd.VAcceptCriterion;
import com.vaadin.client.ui.dd.VDragAndDropManager;
import com.vaadin.client.ui.dd.VDragEvent;
import com.vaadin.shared.ui.dd.AcceptCriterion;
import com.vaadin.v7.client.ui.VTree;
import com.vaadin.v7.client.ui.VTree.TreeNode;
import com.vaadin.v7.ui.Tree;
@AcceptCriterion(Tree.TargetInSubtree.class)
final public class VTargetInSubtree extends VAcceptCriterion {
@Override
protected boolean accept(VDragEvent drag, UIDL configuration) {
VTree tree = (VTree) VDragAndDropManager.get().getCurrentDropHandler()
.getConnector().getWidget();
TreeNode treeNode = tree
.getNodeByKey((String) drag.getDropDetails().get("itemIdOver"));
if (treeNode != null) {
Widget parent2 = treeNode;
int depth = configuration.getIntAttribute("depth");
if (depth < 0) {
depth = Integer.MAX_VALUE;
}
final String searchedKey = configuration.getStringAttribute("key");
for (int i = 0; i <= depth && parent2 instanceof TreeNode; i++) {
if (searchedKey.equals(((TreeNode) parent2).key)) {
return true;
}
// panel -> next level node
parent2 = parent2.getParent().getParent();
}
}
return false;
}
}