Java tutorial
/** * Licensed under the Apache License,Version2.0(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 de.datenhahn.vaadin.componentrenderer; import com.vaadin.ui.Grid; import de.datenhahn.vaadin.componentrenderer.client.detailskeys.DetailsOpenCloseServerRpc; /** * Handles the expansion and collapsing of the detailsrow with STRG+DOWN (expand) and STRG+UP (collapse). * * @author Jonas Hahn (jonas.hahn@datenhahn.de) */ public class DetailsKeysExtension extends Grid.AbstractGridExtension { private DetailsKeysExtension(final Grid grid) { super.extend(grid); registerRpc(new DetailsOpenCloseServerRpcImpl(grid)); } public static DetailsKeysExtension extend(Grid grid) { return new DetailsKeysExtension(grid); } public static class DetailsOpenCloseServerRpcImpl implements DetailsOpenCloseServerRpc { private final Grid grid; public DetailsOpenCloseServerRpcImpl(Grid grid) { this.grid = grid; } @Override public void setDetailsVisible(int rowIndex, boolean visible) { Object itemId = grid.getContainerDataSource().getItemIds(rowIndex, 1).get(0); grid.setDetailsVisible(itemId, visible); } } }