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- /*
- * 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.client.ui.optiongroup;
-
- import java.util.ArrayList;
- import java.util.Collections;
- import java.util.HashSet;
- import java.util.List;
-
- import com.vaadin.client.communication.StateChangeEvent;
- import com.vaadin.client.connectors.AbstractListingConnector;
- import com.vaadin.client.data.DataSource;
- import com.vaadin.client.ui.ConnectorFocusAndBlurHandler;
- import com.vaadin.client.ui.VCheckBoxGroup;
- import com.vaadin.shared.data.selection.MultiSelectServerRpc;
- import com.vaadin.shared.data.selection.SelectionModel;
- import com.vaadin.shared.ui.Connect;
- import com.vaadin.shared.ui.optiongroup.CheckBoxGroupState;
- import com.vaadin.ui.CheckBoxGroup;
-
- import elemental.json.JsonObject;
-
- @Connect(CheckBoxGroup.class)
- // We don't care about the framework-provided selection model at this point
- public class CheckBoxGroupConnector
- extends AbstractListingConnector<SelectionModel<?>> {
-
- private ConnectorFocusAndBlurHandler handler;
-
- @Override
- protected void init() {
- super.init();
- getWidget().addSelectionChangeHandler(this::selectionChanged);
- handler = ConnectorFocusAndBlurHandler.addHandlers(this);
- }
-
- @Override
- public void onUnregister() {
- super.onUnregister();
- handler.removeHandlers();
- handler = null;
- }
-
- private void selectionChanged(JsonObject changedItem, Boolean selected) {
- MultiSelectServerRpc rpc = getRpcProxy(MultiSelectServerRpc.class);
- String key = getRowKey(changedItem);
- HashSet<String> change = new HashSet<>();
- change.add(key);
- if (Boolean.TRUE.equals(selected)) {
- rpc.updateSelection(change, Collections.emptySet());
- } else {
- rpc.updateSelection(Collections.emptySet(), change);
- }
- }
-
- @Override
- public void onStateChanged(StateChangeEvent stateChangeEvent) {
- super.onStateChanged(stateChangeEvent);
- getWidget().setTabIndex(getState().tabIndex);
- getWidget().setReadonly(isReadOnly());
- getWidget().client = getConnection();
- }
-
- @Override
- public void setDataSource(DataSource<JsonObject> dataSource) {
- dataSource.addDataChangeHandler(range -> updateOptionGroup());
- super.setDataSource(dataSource);
- }
-
- private void updateOptionGroup() {
- List<JsonObject> items = new ArrayList<>(getDataSource().size());
- for (int i = 0; i < getDataSource().size(); ++i) {
- JsonObject item = getDataSource().getRow(i);
- items.add(item);
- }
- getWidget().buildOptions(items);
- }
-
- @Override
- public VCheckBoxGroup getWidget() {
- return (VCheckBoxGroup) super.getWidget();
- }
-
- @Override
- public CheckBoxGroupState getState() {
- return (CheckBoxGroupState) super.getState();
- }
-
- }
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