Java tutorial
/* * com.goodow.web.view.wave * Copyright 2012 Goodow.com * * 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.goodow.wave.client.search; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.BlurEvent; import com.google.gwt.event.dom.client.BlurHandler; import com.google.gwt.event.dom.client.FocusEvent; import com.google.gwt.event.dom.client.FocusHandler; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget; public class SearchBox extends Composite { interface SearchBoxUiBinder extends UiBinder<Widget, SearchBox> { } @UiField TextBox textBox; @UiField HTMLPanel root; private static SearchBoxUiBinder uiBinder = GWT.create(SearchBoxUiBinder.class); public SearchBox() { initWidget(uiBinder.createAndBindUi(this)); textBox.addFocusHandler(new FocusHandler() { @Override public void onFocus(final FocusEvent arg0) { root.getElement().setAttribute("focused", ""); } }); textBox.addBlurHandler(new BlurHandler() { @Override public void onBlur(final BlurEvent arg0) { root.getElement().removeAttribute("focused"); } }); } public TextBox getTextBox() { return textBox; } }