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Diffstat (limited to 'toolkit/test/accessibility/HelpWindow.java')
| -rw-r--r-- | toolkit/test/accessibility/HelpWindow.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/toolkit/test/accessibility/HelpWindow.java b/toolkit/test/accessibility/HelpWindow.java new file mode 100644 index 000000000..00c934067 --- /dev/null +++ b/toolkit/test/accessibility/HelpWindow.java @@ -0,0 +1,189 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you 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 . + */ + +import javax.swing.JFrame; +import javax.swing.JScrollPane; +import javax.swing.JEditorPane; +import javax.swing.JButton; +import java.net.URL; +import javax.swing.event.HyperlinkListener; +import javax.swing.event.HyperlinkEvent; +import java.net.MalformedURLException; +import java.io.File; +import java.awt.event.WindowAdapter; +import java.awt.event.WindowEvent; +import java.awt.GridBagLayout; +import java.awt.GridBagConstraints; +import java.awt.event.ActionListener; +import java.util.LinkedList; + +class HelpWindow + implements ActionListener +{ + public static synchronized HelpWindow Instance () + { + if (maInstance == null) + maInstance = new HelpWindow(); + return maInstance; + } + + public void loadFile (String sFilename) + { + File aFile = new File (sFilename); + try + { + loadURL (aFile.toURI().toURL()); + } + catch (MalformedURLException e) + { + e.printStackTrace (System.err); + } + } + + private void loadURL (URL aURL) + { + maHistory.addLast (aURL); + selectHistoryPage (maHistory.size()-1); + maFrame.toFront (); + } + + + + + private HelpWindow () + { + try + { + maCurrentHistoryEntry = -1; + maHistory = new LinkedList<URL>(); + + maFrame = new JFrame (); + maFrame.addWindowListener (new WindowAdapter () + { + @Override + public void windowClosing (WindowEvent e) + { + maInstance = null; + } + }); + maContent = createContentWidget(); + + maFrame.getContentPane().setLayout (new GridBagLayout()); + GridBagConstraints aConstraints = new GridBagConstraints (); + aConstraints.gridx = 0; + aConstraints.gridy = 0; + aConstraints.gridwidth = 3; + aConstraints.weightx = 1; + aConstraints.weighty = 1; + aConstraints.fill = GridBagConstraints.BOTH; + maFrame.getContentPane().add (new JScrollPane (maContent), aConstraints); + + aConstraints = new GridBagConstraints(); + aConstraints.gridx = 0; + aConstraints.gridy = 1; + maPrevButton = new JButton ("Prev"); + maFrame.getContentPane().add (maPrevButton, aConstraints); + maPrevButton.addActionListener (this); + + aConstraints = new GridBagConstraints(); + aConstraints.gridx = 1; + aConstraints.gridy = 1; + maNextButton = new JButton ("Next"); + maFrame.getContentPane().add (maNextButton, aConstraints); + maNextButton.addActionListener (this); + + aConstraints = new GridBagConstraints(); + aConstraints.gridx = 2; + aConstraints.gridy = 1; + aConstraints.anchor = GridBagConstraints.EAST; + JButton aButton = new JButton ("Close"); + maFrame.getContentPane().add (aButton, aConstraints); + aButton.addActionListener (this); + + maFrame.setSize (600,400); + maFrame.setVisible (true); + } + catch (Exception e) + {} + } + + public void actionPerformed (java.awt.event.ActionEvent e) + { + if (e.getActionCommand().equals("Prev")) + { + selectHistoryPage (maCurrentHistoryEntry - 1); + } + else if (e.getActionCommand().equals("Next")) + { + selectHistoryPage (maCurrentHistoryEntry + 1); + } + else if (e.getActionCommand().equals("Close")) + { + maFrame.dispose (); + maInstance = null; + } + } + + private JEditorPane createContentWidget () + { + JEditorPane aContent = new JEditorPane (); + aContent.setEditable (false); + aContent.addHyperlinkListener (new HyperlinkListener() + { + public void hyperlinkUpdate (HyperlinkEvent e) + { + if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) + HelpWindow.Instance().loadURL (e.getURL()); + } + }); + return aContent; + } + + private void selectHistoryPage (int i) + { + if (i < 0) + i = 0; + else if (i >= maHistory.size()-1) + i = maHistory.size()-1; + if (i != maCurrentHistoryEntry) + { + URL aURL = maHistory.get (i); + try + { + maContent.setPage (aURL); + } + catch (java.io.IOException ex) + { + ex.printStackTrace(System.err); + } + + maCurrentHistoryEntry = i; + } + + maPrevButton.setEnabled (maCurrentHistoryEntry > 0); + maNextButton.setEnabled (maCurrentHistoryEntry < maHistory.size()-1); + } + + private static HelpWindow maInstance = null; + private JFrame maFrame; + private JEditorPane maContent; + private LinkedList<URL> maHistory; + private int maCurrentHistoryEntry; + private JButton maPrevButton; + private JButton maNextButton; +} |