Localize TTS

app/src/main/java/eu/faircode/email/EntityRule.java

@@ -22,6 +22,8 @@ package eu.faircode.email;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.net.Uri;
 import android.text.TextUtils;
 
@@ -43,6 +45,7 @@ import java.util.Calendar;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.List;
+import java.util.Locale;
 import java.util.regex.Pattern;
 
 import javax.mail.Address;
@@ -484,19 +487,24 @@ public class EntityRule {
     }
 
     private boolean onActionTts(Context context, EntityMessage message, JSONObject jargs) {
+        Locale locale = (message.language == null ? Locale.getDefault() : new Locale(message.language));
+
+        Configuration configuration = new Configuration(context.getResources().getConfiguration());
+        configuration.setLocale(locale);
+        Resources res = context.createConfigurationContext(configuration).getResources();
+
         StringBuilder sb = new StringBuilder();
-        sb.append(context.getString(R.string.title_rule_tts_prefix));
+        sb.append(context.getString(R.string.title_rule_tts_prefix)).append(". ");
 
         if (message.from != null && message.from.length > 0)
-            sb.append(' ').append(context.getString(R.string.title_from))
-                    .append(' ').append(MessageHelper.formatAddressesShort(message.from));
+            sb.append(res.getString(R.string.title_rule_tts_from))
+                    .append(' ').append(MessageHelper.formatAddressesShort(message.from)).append(". ");
 
         if (!TextUtils.isEmpty(message.subject))
-            sb.append(' ').append(context.getString(R.string.title_subject))
-                    .append(' ').append(message.subject);
+            sb.append(res.getString(R.string.title_rule_tts_subject))
+                    .append(' ').append(message.subject).append(". ");
 
-        EntityLog.log(context, "TTS queued language=" + message.language + " text=" + sb.toString());
-        TTSHelper.speak(context, "rule:" + message.id, sb.toString(), message.language);
+        TTSHelper.speak(context, "rule:" + message.id, sb.toString(), locale);
 
         return true;
     }

app/src/main/java/eu/faircode/email/TTSHelper.java

@@ -3,25 +3,27 @@ package eu.faircode.email;
 import android.content.Context;
 import android.speech.tts.TextToSpeech;
 
+import androidx.annotation.NonNull;
+
 import java.util.Locale;
 
 public class TTSHelper {
     private static boolean initialized;
     private static TextToSpeech instance;
 
-    static void speak(Context context, final String utteranceId, final String text, final String language) {
+    static void speak(
+            @NonNull final Context context,
+            @NonNull final String utteranceId,
+            @NonNull final String text,
+            @NonNull final Locale locale) {
         // https://developer.android.com/reference/android/speech/tts/TextToSpeech
         // https://android-developers.googleblog.com/2009/09/introduction-to-text-to-speech-in.html
 
         final Runnable speak = new Runnable() {
             @Override
             public void run() {
-                if (language != null) {
-                    Locale loc = new Locale(language);
-                    if (instance.setLanguage(loc) < 0)
-                        EntityLog.log(context, "TTS unavailable language=" + loc);
-                }
-
+                boolean available = (instance.setLanguage(locale) >= 0);
+                EntityLog.log(context, "TTS queued language=" + locale + " available=" + available + " text=" + text);
                 instance.speak(text, TextToSpeech.QUEUE_ADD, null, utteranceId);
             }
         };

app/src/main/res/values-nl-rNL/strings.xml

@@ -930,6 +930,7 @@
     <string name="title_rule_move">Verplaatsen</string>
     <string name="title_rule_copy">Kopiëren (label)</string>
     <string name="title_rule_answer">Beantwoorden</string>
+    <string name="title_rule_tts">Tekst-naar-spraak</string>
     <string name="title_rule_automation">Automatisering</string>
     <string name="title_rule_caption">Bewerk regel</string>
     <string name="title_rule_title">Regel is van toepassing op</string>
@@ -965,6 +966,10 @@
     <string name="title_rule_no_headers">Header condities kunnen niet worden gecontroleerd</string>
     <string name="title_rule_matched">Overeenkomende berichten</string>
     <string name="title_rule_no_matches">Geen overeenkomende berichten</string>
+    <string name="title_rule_tts_setup">Instellingen controleren</string>
+    <string name="title_rule_tts_prefix">Nieuw bericht</string>
+    <string name="title_rule_tts_from">Van</string>
+    <string name="title_rule_tts_subject">Onderwerp</string>
     <string name="title_legend_section_synchronize">Synchroniseren</string>
     <string name="title_legend_section_folders">Mappen</string>
     <string name="title_legend_section_messages">Berichten</string>

app/src/main/res/values/strings.xml

@@ -1098,6 +1098,8 @@
 
     <string name="title_rule_tts_setup">Check setup</string>
     <string name="title_rule_tts_prefix">New message</string>
+    <string name="title_rule_tts_from">From</string>
+    <string name="title_rule_tts_subject">Subject</string>
 
     <string name="title_legend_section_synchronize">Synchronize</string>
     <string name="title_legend_section_folders">Folders</string>