PasswordTextBox.java

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// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2009-2011 Google, All Rights reserved
// Copyright 2011-2012 MIT, All rights reserved
// Released under the Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
 
package com.google.appinventor.components.runtime;
 
import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.common.YaVersion;
 
import android.text.InputType;
import android.text.method.PasswordTransformationMethod;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
 
@DesignerComponent(version = YaVersion.PASSWORDTEXTBOX_COMPONENT_VERSION,
    description = "<p>A box for entering passwords.  This is the same as " +
    "the ordinary <code>TextBox</code> component except this does not " +
    "display the characters typed by the user.</p><p>The value of the text " +
    "in the box can be found or set through the <code>Text</code> property. " +
    "If blank, the <code>Hint</code> property, which appears as faint text " +
    "in the box, can provide the user with guidance as to what to type.</p> " +
    "<p>Text boxes are usually used with the <code>Button</code> " +
    "component, with the user clicking on the button when text entry is " +
    "complete.</p>",
    category = ComponentCategory.USERINTERFACE)
@SimpleObject
public final class PasswordTextBox extends TextBoxBase {
    
  private boolean passwordVisible;
    
  public PasswordTextBox(ComponentContainer container) {
    super(container, new EditText(container.$context()));
 
    // make the box single line
    view.setSingleLine(true);
    // Add a transformation method to hide password text.   This must
    // be done after the SingleLine command
    view.setTransformationMethod(new PasswordTransformationMethod());
 
    // make sure the done action is Done and not Next.  See comment in Textbox.java
    view.setImeOptions(EditorInfo.IME_ACTION_DONE);
 
    PasswordVisible(false);
    
  }
 
  @SimpleProperty(description = "Visibility of password.")
  public void PasswordVisible(boolean visible){
    passwordVisible=visible;
    if(visible){
      view.setInputType(InputType.TYPE_CLASS_TEXT|InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
    }else{
      view.setInputType(InputType.TYPE_CLASS_TEXT|InputType.TYPE_TEXT_VARIATION_PASSWORD);
    }
  }
 
  @SimpleProperty(description = "Visibility of password.")
  public boolean PasswordVisible(){
    return passwordVisible;
  }
 
}