/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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.
 */
importPackage(java.lang);
importPackage(org.apache.pivot.wtk);

var treeViewDropTarget = new DropTarget() {
    dragEnter: function(component, dragContent, supportedDropActions, userDropAction) {
        var dropAction = null;

        if (dragContent.containsFileList()
            && DropAction.COPY.isSelected(supportedDropActions)) {
            dropAction = DropAction.COPY;
        }

        return dropAction;
    },

    dragExit: function(component) {
    },

    dragMove: function(component, dragContent, supportedDropActions, x, y, userDropAction) {
        return (dragContent.containsFileList() ? DropAction.COPY : null);
    },

    userDropActionChange: function(component, dragContent, supportedDropActions, x, y, 
        userDropAction) {
        return (dragContent.containsFileList() ? DropAction.COPY : null);
    },

    drop: function(component, dragContent, supportedDropActions, x, y, userDropAction) {
        var dropAction = null;

        if (dragContent.containsFileList()) {
            return application.drop(dragContent);                
        }

        dragExit(component);

        return dropAction;
    }
};