1 /*
   2  * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 package sun.awt.windows;
  28 
  29 import java.awt.Image;
  30 import java.awt.Toolkit;
  31 import java.awt.im.spi.InputMethod;
  32 import java.awt.im.spi.InputMethodDescriptor;
  33 import java.util.Locale;
  34 
  35 /**
  36  * Provides sufficient information about an input method
  37  * to enable selection and loading of that input method.
  38  * The input method itself is only loaded when it is actually used.
  39  *
  40  * @since 1.3
  41  */
  42 
  43 final class WInputMethodDescriptor implements InputMethodDescriptor {
  44 
  45     /**
  46      * @see java.awt.im.spi.InputMethodDescriptor#getAvailableLocales
  47      */
  48     @Override
  49     public Locale[] getAvailableLocales() {
  50         // returns a copy of internal list for public API
  51         Locale[] locales = getAvailableLocalesInternal();
  52         Locale[] tmp = new Locale[locales.length];
  53         System.arraycopy(locales, 0, tmp, 0, locales.length);
  54         return tmp;
  55     }
  56 
  57     static Locale[] getAvailableLocalesInternal() {
  58         return getNativeAvailableLocales();
  59     }
  60 
  61     /**
  62      * @see java.awt.im.spi.InputMethodDescriptor#hasDynamicLocaleList
  63      */
  64     @Override
  65     public boolean hasDynamicLocaleList() {
  66         return true;
  67     }
  68 
  69     /**
  70      * @see java.awt.im.spi.InputMethodDescriptor#getInputMethodDisplayName
  71      */
  72     @Override
  73     public synchronized String getInputMethodDisplayName(Locale inputLocale, Locale displayLanguage) {
  74         // We ignore the input locale.
  75         // When displaying for the default locale, rely on the localized AWT properties;
  76         // for any other locale, fall back to English.
  77         String name = "System Input Methods";
  78         if (Locale.getDefault().equals(displayLanguage)) {
  79             name = Toolkit.getProperty("AWT.HostInputMethodDisplayName", name);
  80         }
  81         return name;
  82     }
  83 
  84     /**
  85      * @see java.awt.im.spi.InputMethodDescriptor#getInputMethodIcon
  86      */
  87     @Override
  88     public Image getInputMethodIcon(Locale inputLocale) {
  89         return null;
  90     }
  91 
  92     /**
  93      * @see java.awt.im.spi.InputMethodDescriptor#createInputMethod
  94      */
  95     @Override
  96     public InputMethod createInputMethod() throws Exception {
  97         return new WInputMethod();
  98     }
  99 
 100     private static native Locale[] getNativeAvailableLocales();
 101 }