Support Turkish keyboard

I left TODOs in Suggest.java because we must pay attention to locale
when changing character's case. Filed another Bug: 4769095 to track
that.

Bug: 4768050
Change-Id: I1ae2c4ffd2208403a8c2a25dd3a56b71dcefc826

java/res/values/strings.xml

@@ -289,6 +289,8 @@
     <string name="subtype_mode_sr_keyboard">Serbian Keyboard</string>
     <!-- Description for Swedish keyboard subtype [CHAR LIMIT=35] -->
     <string name="subtype_mode_sv_keyboard">Swedish Keyboard</string>
+    <!-- Description for Turkish keyboard subtype [CHAR LIMIT=35] -->
+    <string name="subtype_mode_tr_keyboard">Turkish Keyboard</string>
     <!-- Description for Afrikaans voice input subtype [CHAR LIMIT=35] -->
     <string name="subtype_mode_af_voice">Afrikaans Voice</string>
     <!-- Description for Czech voice input subtype [CHAR LIMIT=35] -->

java/res/xml-tr/kbd_qwerty.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2011, The Android Open Source Project
+**
+** Licensed 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
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<Keyboard
+    xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
+    latin:keyboardLocale="tr"
+>
+    <include
+        latin:keyboardLayout="@xml/kbd_rows_qwerty" />
+</Keyboard>

java/res/xml/method.xml

@@ -20,7 +20,7 @@
 <!-- The attributes in this XML file provide configuration information -->
 <!-- for the Input Method Manager. -->
 
-<!-- Keyboard: en_US, en_GB, ar, cs, da, de, es, es_US, fi, fr, fr_CA, fr_CH, hr, hu, it, iw, nb, nl, pl, pt, ru, sr, sv -->
+<!-- Keyboard: en_US, en_GB, ar, cs, da, de, es, es_US, fi, fr, fr_CA, fr_CH, hr, hu, it, iw, nb, nl, pl, pt, ru, sr, sv, tr -->
 <!-- Voice: af, cs, da, de, en, es, fr, it, ja, ko, nl, pl, pt, ru, tr, yue, zh, zu -->
 <!-- TODO: use <lang>_keyboard icon instead of a common keyboard icon. -->
 <!-- TODO: use <lang>_mic icon instead of a common mic icon. -->
@@ -185,6 +185,11 @@
             android:imeSubtypeLocale="sv"
             android:imeSubtypeMode="keyboard"
     />
+    <subtype android:icon="@drawable/ic_subtype_keyboard"
+            android:label="@string/subtype_mode_tr_keyboard"
+            android:imeSubtypeLocale="tr"
+            android:imeSubtypeMode="keyboard"
+    />
 <!--     <subtype android:icon="@drawable/ic_subtype_mic" -->
 <!--             android:label="@string/subtype_mode_af_voice" -->
 <!--             android:imeSubtypeLocale="af" -->

java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java

@@ -120,7 +120,7 @@ public class LatinKeyboardView extends KeyboardView {
                 && keyboard.isShiftedOrShiftLocked()
                 && !TextUtils.isEmpty(label) && label.length() < 3
                 && Character.isLowerCase(label.charAt(0))) {
-            return label.toString().toUpperCase();
+            return label.toString().toUpperCase(keyboard.mId.mLocale);
         }
         return label;
     }

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -1274,7 +1274,7 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
                 clearSuggestions();
             }
         }
-        KeyboardSwitcher switcher = mKeyboardSwitcher;
+        final KeyboardSwitcher switcher = mKeyboardSwitcher;
         if (switcher.isShiftedOrShiftLocked()) {
             if (keyCodes == null || keyCodes[0] < Character.MIN_CODE_POINT
                     || keyCodes[0] > Character.MAX_CODE_POINT) {
@@ -1282,13 +1282,15 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
             }
             code = keyCodes[0];
             if (switcher.isAlphabetMode() && Character.isLowerCase(code)) {
-                int upperCaseCode = Character.toUpperCase(code);
+                // In some locales, such as Turkish, Character.toUpperCase() may return a wrong
-                if (upperCaseCode != code) {
+                // character because it doesn't take care of locale.
-                    code = upperCaseCode;
+                final String upperCaseString = new String(new int[] {code}, 0, 1)
+                        .toUpperCase(mSubtypeSwitcher.getInputLocale());
+                if (upperCaseString.codePointCount(0, upperCaseString.length()) == 1) {
+                    code = upperCaseString.codePointAt(0);
                 } else {
                     // Some keys, such as [eszett], have upper case as multi-characters.
-                    String upperCase = new String(new int[] {code}, 0, 1).toUpperCase();
+                    onTextInput(upperCaseString);
-                    onTextInput(upperCase);
                     return;
                 }
             }

java/src/com/android/inputmethod/latin/SubtypeSwitcher.java

@@ -577,30 +577,30 @@ public class SubtypeSwitcher {
 
     public static String getFullDisplayName(Locale locale, boolean returnsNameInThisLocale) {
         if (returnsNameInThisLocale) {
-            return toTitleCase(SubtypeLocale.getFullDisplayName(locale));
+            return toTitleCase(SubtypeLocale.getFullDisplayName(locale), locale);
         } else {
-            return toTitleCase(locale.getDisplayName());
+            return toTitleCase(locale.getDisplayName(), locale);
         }
     }
 
     public static String getDisplayLanguage(Locale locale) {
-        return toTitleCase(SubtypeLocale.getFullDisplayName(locale));
+        return toTitleCase(SubtypeLocale.getFullDisplayName(locale), locale);
     }
 
     public static String getMiddleDisplayLanguage(Locale locale) {
         return toTitleCase((Utils.constructLocaleFromString(
-                locale.getLanguage()).getDisplayLanguage(locale)));
+                locale.getLanguage()).getDisplayLanguage(locale)), locale);
     }
 
     public static String getShortDisplayLanguage(Locale locale) {
-        return toTitleCase(locale.getLanguage());
+        return toTitleCase(locale.getLanguage(), locale);
     }
 
-    private static String toTitleCase(String s) {
+    private static String toTitleCase(String s, Locale locale) {
         if (s.length() == 0) {
             return s;
         }
-        return Character.toUpperCase(s.charAt(0)) + s.substring(1);
+        return s.toUpperCase(locale).charAt(0) + s.substring(1);
     }
 
     public String getInputLanguageName() {

java/src/com/android/inputmethod/latin/Suggest.java

@@ -250,6 +250,7 @@ public class Suggest implements Dictionary.WordCallback {
                 poolSize > 0 ? (StringBuilder) mStringPool.remove(poolSize - 1)
                         : new StringBuilder(getApproxMaxWordLength());
         sb.setLength(0);
+        // TODO: Must pay attention to locale when changing case.
         if (all) {
             sb.append(word.toString().toUpperCase());
         } else if (first) {
@@ -315,6 +316,7 @@ public class Suggest implements Dictionary.WordCallback {
                 } else {
                     // Word entered: return only bigrams that match the first char of the typed word
                     final char currentChar = typedWord.charAt(0);
+                    // TODO: Must pay attention to locale when changing case.
                     final char currentCharUpper = Character.toUpperCase(currentChar);
                     int count = 0;
                     final int bigramSuggestionSize = mBigramSuggestions.size();
@@ -518,6 +520,7 @@ public class Suggest implements Dictionary.WordCallback {
         StringBuilder sb = poolSize > 0 ? (StringBuilder) mStringPool.remove(poolSize - 1)
                 : new StringBuilder(getApproxMaxWordLength());
         sb.setLength(0);
+        // TODO: Must pay attention to locale when changing case.
         if (mIsAllUpperCase) {
             sb.append(new String(word, offset, length).toUpperCase());
         } else if (mIsFirstCharCapitalized) {