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- /*
- * Copyright 2000-2018 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.connectors;
-
- import com.vaadin.client.connectors.data.HasDataSource;
- import com.vaadin.client.data.DataSource;
- import com.vaadin.client.ui.AbstractFieldConnector;
- import com.vaadin.shared.data.DataCommunicatorConstants;
- import com.vaadin.shared.ui.abstractlisting.AbstractListingState;
- import com.vaadin.ui.AbstractListing;
-
- import elemental.json.JsonObject;
- import elemental.json.JsonValue;
-
- /**
- * A base connector class for {@link AbstractListing}.
- *
- * @author Vaadin Ltd.
- *
- * @since 8.0
- */
- public abstract class AbstractListingConnector extends AbstractFieldConnector
- implements HasDataSource {
-
- private DataSource<JsonObject> dataSource = null;
-
- @Override
- public void setDataSource(DataSource<JsonObject> dataSource) {
- this.dataSource = dataSource;
- }
-
- @Override
- public DataSource<JsonObject> getDataSource() {
- return dataSource;
- }
-
- /**
- * Returns the key of the given data row.
- *
- * @param row
- * the row
- * @return the row key
- */
- protected static String getRowKey(JsonObject row) {
- return row.getString(DataCommunicatorConstants.KEY);
- }
-
- /**
- * Returns the data of the given data row.
- *
- * @param row
- * the row
- * @return the row data
- */
- protected static JsonValue getRowData(JsonObject row) {
- return row.get(DataCommunicatorConstants.DATA);
- }
-
- /**
- * Returns whether the given row is selected.
- *
- * @param row
- * the row
- * @return {@code true} if the row is selected, {@code false} otherwise
- */
- protected boolean isRowSelected(JsonObject row) {
- return row.hasKey(DataCommunicatorConstants.SELECTED);
- }
-
- @Override
- public AbstractListingState getState() {
- return (AbstractListingState) super.getState();
- }
- }
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