/* * Copyright 2006 Google Inc. *  * 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.google.gwt.sample.kitchensink.client;import com.google.gwt.user.client.ui.Button;import com.google.gwt.user.client.ui.ClickListener;import com.google.gwt.user.client.ui.HorizontalPanel;import com.google.gwt.user.client.ui.HTML;import com.google.gwt.user.client.ui.KeyboardListenerAdapter;import com.google.gwt.user.client.ui.PasswordTextBox;import com.google.gwt.user.client.ui.TextArea;import com.google.gwt.user.client.ui.TextBox;import com.google.gwt.user.client.ui.TextBoxBase;import com.google.gwt.user.client.ui.VerticalPanel;import com.google.gwt.user.client.ui.Widget;/** * Demonstrates the various text widgets. */public class Text extends Sink {  public static SinkInfo init() {    return new SinkInfo(      "Text",      "GWT includes the standard complement of text-entry widgets, each of which "        + "supports keyboard and selection events you can use to control text entry.  "        + "In particular, notice that the selection range for each widget is "        + "updated whenever you press a key.  "        + "This can be a bit tricky on some browsers, but the GWT class library "        + "takes care of the plumbing for you automatically.") {      public Sink createInstance() {        return new Text();      }    };  }  private PasswordTextBox passwordText = new PasswordTextBox();  private TextArea textArea = new TextArea();  private TextBox textBox = new TextBox();  public Text() {    VerticalPanel panel = new VerticalPanel();    panel.setSpacing(8);    panel.add(new HTML("Normal text box:"));    panel.add(createTextThing(textBox));    panel.add(new HTML("Password text box:"));    panel.add(createTextThing(passwordText));    panel.add(new HTML("Text area:"));    panel.add(createTextThing(textArea));    initWidget(panel);  }  public void onShow() {  }  private Widget createTextThing(final TextBoxBase textBox) {    HorizontalPanel p = new HorizontalPanel();    p.setSpacing(4);    p.add(textBox);    final HTML echo = new HTML();    p.add(new Button("select all", new ClickListener() {      public void onClick(Widget sender) {        textBox.selectAll();        textBox.setFocus(true);        updateText(textBox, echo);      }    }));    p.add(echo);    textBox.addKeyboardListener(new KeyboardListenerAdapter() {      public void onKeyUp(Widget sender, char keyCode, int modifiers) {        updateText(textBox, echo);      }    });    textBox.addClickListener(new ClickListener() {      public void onClick(Widget sender) {        updateText(textBox, echo);      }    });    return p;  }  private void updateText(TextBoxBase text, HTML echo) {    echo.setHTML("Text: " + text.getText() + "<br>" + "Selection: "      + text.getCursorPos() + ", " + text.getSelectionLength());  }}