Java tutorial
/* * 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.ui; import com.vaadin.client.StyleConstants; import com.vaadin.shared.AbstractFieldState; public abstract class AbstractFieldConnector extends AbstractComponentConnector implements HasRequiredIndicator { @Override public AbstractFieldState getState() { return (AbstractFieldState) super.getState(); } @Override public boolean isRequiredIndicatorVisible() { return getState().required && !isReadOnly(); } @Override protected void updateWidgetStyleNames() { super.updateWidgetStyleNames(); // add / remove read-only style name setWidgetStyleName("v-readonly", isReadOnly()); // add / remove error style name to Fields setWidgetStyleNameWithPrefix(getWidget().getStylePrimaryName(), StyleConstants.REQUIRED_EXT, isRequiredIndicatorVisible()); } /** * Checks if the connector is read only. * * @return true */ public boolean isReadOnly() { return getState().readOnly; } }