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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.ui;
-
- import com.vaadin.event.FieldEvents.BlurEvent;
- import com.vaadin.event.FieldEvents.BlurListener;
- import com.vaadin.event.FieldEvents.BlurNotifier;
- import com.vaadin.event.FieldEvents.FocusAndBlurServerRpcDecorator;
- import com.vaadin.event.FieldEvents.FocusEvent;
- import com.vaadin.event.FieldEvents.FocusListener;
- import com.vaadin.event.FieldEvents.FocusNotifier;
- import com.vaadin.shared.Registration;
- import com.vaadin.shared.ui.TabIndexState;
- import com.vaadin.ui.Component.Focusable;
-
- /**
- * An abstract base class for focusable components. Includes API for setting the
- * tab index, programmatic focusing, and adding focus and blur listeners.
- *
- * @since 7.6
- * @author Vaadin Ltd
- */
- public abstract class AbstractFocusable extends AbstractComponent
- implements Focusable, FocusNotifier, BlurNotifier {
-
- protected AbstractFocusable() {
- registerRpc(new FocusAndBlurServerRpcDecorator(this, this::fireEvent));
- }
-
- @Override
- public Registration addBlurListener(BlurListener listener) {
- return addListener(BlurEvent.EVENT_ID, BlurEvent.class, listener,
- BlurListener.blurMethod);
- }
-
- @Override
- public Registration addFocusListener(FocusListener listener) {
- return addListener(FocusEvent.EVENT_ID, FocusEvent.class, listener,
- FocusListener.focusMethod);
- }
-
- @Override
- public void focus() {
- super.focus();
- }
-
- @Override
- public int getTabIndex() {
- return getState(false).tabIndex;
- }
-
- @Override
- public void setTabIndex(int tabIndex) {
- getState().tabIndex = tabIndex;
- }
-
- @Override
- protected TabIndexState getState() {
- return (TabIndexState) super.getState();
- }
-
- @Override
- protected TabIndexState getState(boolean markAsDirty) {
- return (TabIndexState) super.getState(markAsDirty);
- }
- }
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