Showing the changes to java/pkg/sun/awt/im/InputMethodLocator.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,171 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1998, 1999, 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 | package sun.awt.im; | ||
| 27 | |||
| 28 | import java.awt.AWTException; | ||
| 29 | import java.awt.im.spi.InputMethodDescriptor; | ||
| 30 | import java.util.Locale; | ||
| 31 | |||
| 32 | /** | ||
| 33 | * Provides complete information to make and handle the selection | ||
| 34 | * of an input method and a locale. Immutable class. | ||
| 35 | */ | ||
| 36 | final class InputMethodLocator { | ||
| 37 | |||
| 38 | private InputMethodDescriptor descriptor; | ||
| 39 | |||
| 40 | // Currently `loader' is always the class loader for a | ||
| 41 | // descriptor. `loader' is provided for future extensions to be | ||
| 42 | // able to load input methods from somewhere else, and to support | ||
| 43 | // per input method name space. | ||
| 44 | private ClassLoader loader; | ||
| 45 | |||
| 46 | private Locale locale; | ||
| 47 | |||
| 48 | InputMethodLocator(InputMethodDescriptor descriptor, ClassLoader loader, Locale locale) { | ||
| 49 | if (descriptor == null) { | ||
| 50 | throw new NullPointerException("descriptor can't be null"); | ||
| 51 | } | ||
| 52 | this.descriptor = descriptor; | ||
| 53 | this.loader = loader; | ||
| 54 | this.locale = locale; | ||
| 55 | } | ||
| 56 | |||
| 57 | public boolean equals(Object other) { | ||
| 58 | if (other == this) { | ||
| 59 | return true; | ||
| 60 | } | ||
| 61 | if (other == null || this.getClass() != other.getClass()) { | ||
| 62 | return false; | ||
| 63 | } | ||
| 64 | |||
| 65 | InputMethodLocator otherLocator = (InputMethodLocator) other; | ||
| 66 | if (!descriptor.getClass().equals(otherLocator.descriptor.getClass())) { | ||
| 67 | return false; | ||
| 68 | } | ||
| 69 | if (loader == null && otherLocator.loader != null | ||
| 70 | || loader != null && !loader.equals(otherLocator.loader)) { | ||
| 71 | return false; | ||
| 72 | } | ||
| 73 | if (locale == null && otherLocator.locale != null | ||
| 74 | || locale != null && !locale.equals(otherLocator.locale)) { | ||
| 75 | return false; | ||
| 76 | } | ||
| 77 | return true; | ||
| 78 | } | ||
| 79 | |||
| 80 | public int hashCode() { | ||
| 81 | int result = descriptor.hashCode(); | ||
| 82 | if (loader != null) { | ||
| 83 | result |= loader.hashCode() << 10; | ||
| 84 | } | ||
| 85 | if (locale != null) { | ||
| 86 | result |= locale.hashCode() << 20; | ||
| 87 | } | ||
| 88 | return result; | ||
| 89 | } | ||
| 90 | |||
| 91 | InputMethodDescriptor getDescriptor() { | ||
| 92 | return descriptor; | ||
| 93 | } | ||
| 94 | |||
| 95 | ClassLoader getClassLoader() { | ||
| 96 | return loader; | ||
| 97 | } | ||
| 98 | |||
| 99 | Locale getLocale() { | ||
| 100 | return locale; | ||
| 101 | } | ||
| 102 | |||
| 103 | /** | ||
| 104 | * Returns whether support for locale is available from | ||
| 105 | * the input method. | ||
| 106 | */ | ||
| 107 | boolean isLocaleAvailable(Locale locale) { | ||
| 108 | try { | ||
| 109 | Locale[] locales = descriptor.getAvailableLocales(); | ||
| 110 | for (int i = 0; i < locales.length; i++) { | ||
| 111 | if (locales[i].equals(locale)) { | ||
| 112 | return true; | ||
| 113 | } | ||
| 114 | } | ||
| 115 | } catch (AWTException e) { | ||
| 116 | // treat this as no locale available | ||
| 117 | } | ||
| 118 | return false; | ||
| 119 | } | ||
| 120 | |||
| 121 | /** | ||
| 122 | * Returns an input method locator that has locale forLocale, | ||
| 123 | * but otherwise the same data as this locator. Does not | ||
| 124 | * check whether the input method actually supports forLocale - | ||
| 125 | * use {@link #isLocaleAvailable} for that. | ||
| 126 | */ | ||
| 127 | InputMethodLocator deriveLocator(Locale forLocale) { | ||
| 128 | if (forLocale == locale) { | ||
| 129 | return this; | ||
| 130 | } else { | ||
| 131 | return new InputMethodLocator(descriptor, loader, forLocale); | ||
| 132 | } | ||
| 133 | } | ||
| 134 | |||
| 135 | /** | ||
| 136 | * Returns whether this and other describe the same input method | ||
| 137 | * engine, ignoring the locale setting. | ||
| 138 | */ | ||
| 139 | boolean sameInputMethod(InputMethodLocator other) { | ||
| 140 | if (other == this) { | ||
| 141 | return true; | ||
| 142 | } | ||
| 143 | if (other == null) { | ||
| 144 | return false; | ||
| 145 | } | ||
| 146 | |||
| 147 | if (!descriptor.getClass().equals(other.descriptor.getClass())) { | ||
| 148 | return false; | ||
| 149 | } | ||
| 150 | if (loader == null && other.loader != null | ||
| 151 | || loader != null && !loader.equals(other.loader)) { | ||
| 152 | return false; | ||
| 153 | } | ||
| 154 | return true; | ||
| 155 | } | ||
| 156 | |||
| 157 | /** | ||
| 158 | * Returns a string that can be used as an action command string. | ||
| 159 | * The first part of the string identifies the input method; it does | ||
| 160 | * not include '\n'. If getLocale is not null, getLocale().toString() | ||
| 161 | * is appended, separated by '\n'. | ||
| 162 | */ | ||
| 163 | String getActionCommandString() { | ||
| 164 | String inputMethodString = descriptor.getClass().getName(); | ||
| 165 | if (locale == null) { | ||
| 166 | return inputMethodString; | ||
| 167 | } else { | ||
| 168 | return inputMethodString + "\n" + locale.toString(); | ||
| 169 | } | ||
| 170 | } | ||
| 171 | } | ||