Java tutorial
/* * Copyright (c) 2008-2018 Haulmont. * * 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.haulmont.cuba.web.widgets.client.capslockindicator; import com.vaadin.client.WidgetUtil; import com.vaadin.client.ui.VLabel; public class CubaCapsLockIndicatorWidget extends VLabel implements CapsLockChangeHandler { protected String capsLockOnMessage = null; protected String capsLockOffMessage = null; @Override public void showCapsLockStatus(boolean isCapsLock) { if (isCapsLock) { removeStyleName("capslock-off"); addStyleName("capslock-on"); setMessageOn(capsLockOnMessage); } else { removeStyleName("capslock-on"); addStyleName("capslock-off"); setMessageOff(capsLockOffMessage); } } public void setCapsLockOnMessage(String capsLockOnMessage) { this.capsLockOnMessage = capsLockOnMessage; setMessageOn(capsLockOnMessage); } public void setCapsLockOffMessage(String capsLockOffMessage) { this.capsLockOffMessage = capsLockOffMessage; setMessageOff(capsLockOffMessage); } protected void setMessageOn(String message) { if (message == null || message.length() == 0) { removeStyleName("message-off"); setHTML("<span></span>"); } else { removeStyleName("message-off"); addStyleName("message-on"); setHTML("<span>" + WidgetUtil.escapeHTML(message) + "</span>"); } } protected void setMessageOff(String message) { if (message == null || message.length() == 0) { removeStyleName("message-on"); setHTML("<span></span>"); } else { removeStyleName("message-on"); addStyleName("message-off"); setHTML("<span>" + WidgetUtil.escapeHTML(message) + "</span>"); } } }