Grouping under TextToSpeech.Engine the constants to be used by

a TTS engine implementation or a settings application for default
values, and data integrity check return codes.

2 files changed, 29 insertions, 9 deletions

diff --git a/core/java/android/speech/tts/TextToSpeech.java b/core/java/android/speech/tts/TextToSpeech.java
index 8f58194..9fc143d 100755
--- a/core/java/android/speech/tts/TextToSpeech.java
+++ b/core/java/android/speech/tts/TextToSpeech.java
@@ -81,6 +81,28 @@ public class TextToSpeech {
     }
 
     /**
+     * Internal constants for the TTS functionality
+     *
+     * {@hide}
+     */
+    public class Engine {
+        // default values for a TTS engine when settings are not found in the provider
+        public static final int FALLBACK_TTS_DEFAULT_RATE = 100; // 1x
+        public static final int FALLBACK_TTS_DEFAULT_PITCH = 100;// 1x
+        public static final int FALLBACK_TTS_USE_DEFAULTS = 0; // false
+        public static final String FALLBACK_TTS_DEFAULT_LANG = "eng";
+        public static final String FALLBACK_TTS_DEFAULT_COUNTRY = "";
+        public static final String FALLBACK_TTS_DEFAULT_VARIANT = "";
+
+        // return codes for a TTS engine's check data activity
+        public static final int CHECK_VOICE_DATA_PASS = 1;
+        public static final int CHECK_VOICE_DATA_FAIL = 0;
+        public static final int CHECK_VOICE_DATA_BAD_DATA = -1;
+        public static final int CHECK_VOICE_DATA_MISSING_DATA = -2;
+        public static final int CHECK_VOICE_DATA_MISSING_DATA_NO_SDCARD = -3;
+    }
+
+    /**
      * Connection needed for the TTS.
      */
     private ServiceConnection mServiceConnection;
diff --git a/packages/TtsService/src/android/tts/TtsService.java b/packages/TtsService/src/android/tts/TtsService.java
index b50add6..e9c4ab7 100755
--- a/packages/TtsService/src/android/tts/TtsService.java
+++ b/packages/TtsService/src/android/tts/TtsService.java
@@ -15,9 +15,6 @@
  */
 package android.tts;
 
-import android.speech.tts.ITts.Stub;
-import android.speech.tts.ITtsCallback;
-
 import android.app.Service;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -32,6 +29,9 @@ import android.os.IBinder;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
 import android.preference.PreferenceManager;
+import android.speech.tts.ITts.Stub;
+import android.speech.tts.ITtsCallback;
+import android.speech.tts.TextToSpeech;
 import android.util.Log;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -93,10 +93,6 @@ public class TtsService extends Service implements OnCompletionListener {
     private static final String CATEGORY = "android.intent.category.TTS";
     private static final String PKGNAME = "android.tts";
 
-    private static final int FALLBACK_TTS_DEFAULT_RATE = 100; // 1x
-    private static final int FALLBACK_TTS_DEFAULT_PITCH = 100;// 1x
-    private static final int FALLBACK_TTS_USE_DEFAULTS = 0;
-
     final RemoteCallbackList<android.speech.tts.ITtsCallback> mCallbacks = new RemoteCallbackList<ITtsCallback>();
 
     private Boolean mIsSpeaking;
@@ -162,14 +158,16 @@ public class TtsService extends Service implements OnCompletionListener {
 
     private boolean isDefaultEnforced() {
         return (android.provider.Settings.Secure.getInt(mResolver,
-                    android.provider.Settings.Secure.TTS_USE_DEFAULTS, FALLBACK_TTS_USE_DEFAULTS)
+                    android.provider.Settings.Secure.TTS_USE_DEFAULTS,
+                    TextToSpeech.Engine.FALLBACK_TTS_USE_DEFAULTS)
                 == 1 );
     }
 
 
     private int getDefaultRate() {
         return android.provider.Settings.Secure.getInt(mResolver,
-                android.provider.Settings.Secure.TTS_DEFAULT_RATE, FALLBACK_TTS_DEFAULT_RATE);
+                android.provider.Settings.Secure.TTS_DEFAULT_RATE,
+                TextToSpeech.Engine.FALLBACK_TTS_DEFAULT_RATE);
     }