toolkit/test/accessibility/ov/FocusView.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18
  19 package ov;
  20
  21 import java.awt.GridBagConstraints;
  22 import java.awt.GridBagLayout;
  23 import java.awt.event.ActionListener;
  24 import java.awt.event.ActionEvent;
  25
  26 import javax.swing.JButton;
  27 import javax.swing.JLabel;
  28
  29 import com.sun.star.accessibility.AccessibleEventId;
  30 import com.sun.star.accessibility.AccessibleEventObject;
  31 import com.sun.star.accessibility.AccessibleStateType;
  32 import com.sun.star.accessibility.XAccessibleComponent;
  33 import com.sun.star.accessibility.XAccessibleContext;
  34 import com.sun.star.uno.UnoRuntime;
  35
  36 public class FocusView
  37     extends ListeningObjectView
  38     implements ActionListener
  39 {
  40     /** Create a FocusView when the given object supports the
  41         XAccessibleComponent interface.
  42     */
  43     public static ObjectView Create (
  44         ObjectViewContainer aContainer,
  45         XAccessibleContext xContext)
  46     {
  47         XAccessibleComponent xComponent = UnoRuntime.queryInterface(
  48                 XAccessibleComponent.class, xContext);
  49         if (xComponent != null)
  50             return new FocusView (aContainer);
  51         else
  52             return null;
  53     }
  54
  55     private FocusView (ObjectViewContainer aContainer)
  56     {
  57         super (aContainer);
  58
  59         setLayout (new GridBagLayout());
  60         GridBagConstraints aConstraints = new GridBagConstraints ();
  61
  62         maFocused = new JLabel ();
  63         aConstraints.gridy = 0;
  64         aConstraints.weightx = 1;
  65         aConstraints.fill = GridBagConstraints.HORIZONTAL;
  66         add (maFocused, aConstraints);
  67
  68         maGrabFocus = new JButton ("grabFocus");
  69         aConstraints.gridy = 1;
  70         aConstraints.fill = GridBagConstraints.NONE;
  71         aConstraints.anchor = GridBagConstraints.WEST;
  72         add (maGrabFocus, aConstraints);
  73
  74         maGrabFocus.addActionListener (this);
  75     }
  76
  77     /** Additionally to the context store a reference to the
  78         XAccessibleComponent interface.
  79     */
  80     @Override
  81     public void SetObject (XAccessibleContext xObject)
  82     {
  83         mxComponent = UnoRuntime.queryInterface(
  84                 XAccessibleComponent.class, xObject);
  85         super.SetObject (xObject);
  86     }
  87
  88     @Override
  89     synchronized public void Destroy ()
  90     {
  91         super.Destroy();
  92         maGrabFocus.removeActionListener (this);
  93     }
  94
  95     @Override
  96     synchronized public void Update ()
  97     {
  98         if (mxContext == null)
  99         {
 100             maFocused.setText ("<null object>");
 101             maGrabFocus.setEnabled (false);
 102         }
 103         else
 104         {
 105             long aStateSet = mxContext.getAccessibleStateSet();
 106             if (aStateSet & AccessibleStateType.FOCUSED)
 107                 maFocused.setText ("focused");
 108             else
 109                 maFocused.setText ("not focused");
 110             if (maGrabFocus != null)
 111                 maGrabFocus.setEnabled (true);
 112         }
 113     }
 114
 115     @Override
 116     public String GetTitle ()
 117     {
 118         return "Focus";
 119     }
 120
 121     synchronized public void actionPerformed (ActionEvent aEvent)
 122     {
 123         if (aEvent.getActionCommand().equals("grabFocus"))
 124         {
 125             mxComponent.grabFocus();
 126         }
 127     }
 128
 129     @Override
 130     public void notifyEvent (AccessibleEventObject aEvent)
 131     {
 132         System.out.println (aEvent);
 133         if (aEvent.EventId == AccessibleEventId.STATE_CHANGED)
 134             Update ();
 135     }
 136
 137     private final JLabel maFocused;
 138     private final JButton maGrabFocus;
 139     private XAccessibleComponent mxComponent;
 140 }