Java/GWT/TextBox

Read only TextBox

   <source lang="java">

package com.jexp.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.user.client.ui.TextBox; public class GWTClient implements EntryPoint {

 public void onModuleLoad() {
   TextBox readOnlyTextBox = new TextBox();
   readOnlyTextBox.setReadOnly(true);
   readOnlyTextBox.setText("read only");
   RootPanel.get().add(readOnlyTextBox);
 }

}

      </source>
   
  
 
  

TextBox ClickListener

   <source lang="java">

package com.jexp.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.user.client.ui.KeyboardListenerAdapter; 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.HorizontalPanel; import com.google.gwt.user.client.ui.HTML; public class GWTClient implements EntryPoint {

 public void onModuleLoad() {
   final TextBox textBox = new TextBox();
   
   HorizontalPanel p = new HorizontalPanel();
   p.setSpacing(4);
   textBox.setWidth("20em");
   p.add(textBox);
   final HTML echo = new HTML();
 
   p.add(echo);
   textBox.addClickListener(new ClickListener() {
       public void onClick(Widget sender) {
         updateText(textBox, echo);
       }
   });
 
   updateText(textBox, echo);

   RootPanel.get().add(p);
 }
 
 private void updateText(TextBoxBase text, HTML echo) {
   echo.setHTML("Selection: " + text.getCursorPos() + ", "
       + text.getSelectionLength());
 }
 

}

      </source>
   
  
 
  

TextBox KeyListener

   <source lang="java">

package com.jexp.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.KeyboardListener; import com.google.gwt.user.client.ui.KeyboardListenerAdapter; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.PasswordTextBox; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget;

public class GWTClient implements EntryPoint{

 Button button = new Button("Login");
 public void onModuleLoad() {
   final Label loginPrompt = new Label("Please Log In");
   final Grid grid = new Grid(3, 2);
   final Label namePrompt = new Label("Name");
   final TextBox nameTextbox = new TextBox();
   final Label passwordPrompt = new Label("Password:");
   final PasswordTextBox passwordTextbox =
       new PasswordTextBox();
   RootPanel.get().clear();
   loginPrompt.addStyleName("loginPrompt");
   nameTextbox.addStyleName("nameField");
   passwordTextbox.addStyleName("passwordField");
   button.addClickListener(new ClickListener() {
     public void onClick(Widget sender) {
       Window.alert("Button clicked");
     }
   });
   SubmitListener sl = new SubmitListener();
   passwordTextbox.addKeyboardListener(sl);
   nameTextbox.addKeyboardListener(sl);
   grid.setWidget(0, 0, namePrompt);
   grid.setWidget(0, 1, nameTextbox);
   grid.setWidget(1, 0, passwordPrompt);
   grid.setWidget(1, 1, passwordTextbox);
   grid.setWidget(2, 1, button);
   RootPanel.get().add(loginPrompt);
   RootPanel.get().add(grid);
 }
 private class SubmitListener extends KeyboardListenerAdapter {
   public void onKeyPress(Widget sender, char key, int mods) {
     if (KeyboardListener.KEY_ENTER == key)
       button.click();
   }
 }

}

      </source>