FileExplorerItem.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.guvnor.structure.client.editors.fileexplorer;

import org.guvnor.structure.client.resources.i18n.CommonConstants;
import org.uberfire.backend.vfs.Path;
import org.uberfire.ext.widgets.core.client.tree.TreeItem;

import static org.uberfire.commons.validation.PortablePreconditions.*;

class FileExplorerItem {

    private CommonConstants constants = CommonConstants.INSTANCE;

    private final TreeItem parent;

    FileExplorerItem( final TreeItem treeItem ) {
        this.parent = checkNotNull( "parent", treeItem );
    }

    public void addDirectory( final Path child ) {
        checkCleanupLoading();

        final TreeItem newDirectory = parent.addItem( TreeItem.Type.FOLDER, child.getFileName() );
        newDirectory.addItem( TreeItem.Type.LOADING,
                              constants.Loading() );
        newDirectory.setUserObject( child );
    }

    public void addFile( final Path child ) {
        checkCleanupLoading();

        final TreeItem newFile = parent.addItem( TreeItem.Type.ITEM, child.getFileName() );
        newFile.setUserObject( child );
    }

    private void checkCleanupLoading() {
        if ( parent.getChild( 0 ) != null && parent.getChild( 0 ).getUserObject() == null ) {
            parent.getChild( 0 ).remove();
        }
    }

}