Fix some compat bugs and add VoiceInputLoggerCompatUtils

Change-Id: I54ed0853ed4423704a300977d7880678e066a6fb

java/src/com/android/inputmethod/compat/AbstractCompatWrapper.java

@@ -32,4 +32,8 @@ public abstract class AbstractCompatWrapper {
     public Object getOriginalObject() {
         return mObj;
     }
+
+    public boolean hasOriginalObject() {
+        return mObj != null;
+    }
 }

java/src/com/android/inputmethod/compat/CompatUtils.java

@@ -68,6 +68,7 @@ public class CompatUtils {
 
     public static Method getMethod(Class<?> targetClass, String name,
             Class<?>... parameterTypes) {
+        if (targetClass == null || TextUtils.isEmpty(name)) return null;
         try {
             return targetClass.getMethod(name, parameterTypes);
         } catch (SecurityException e) {

java/src/com/android/inputmethod/compat/InputMethodManagerCompatWrapper.java

@@ -24,6 +24,7 @@ import android.view.inputmethod.InputMethodManager;
 
 import java.lang.reflect.Method;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -43,6 +44,8 @@ public class InputMethodManagerCompatWrapper {
             CompatUtils.getMethod(
                     InputMethodManager.class, "setInputMethodAndSubtype", IBinder.class,
                     String.class, InputMethodSubtypeCompatWrapper.CLASS_InputMethodSubtype);
+    private static final Method METHOD_switchToLastInputMethod = CompatUtils.getMethod(
+            InputMethodManager.class, "switchToLastInputMethod", IBinder.class);
 
     private static final InputMethodManagerCompatWrapper sInstance =
             new InputMethodManagerCompatWrapper();
@@ -78,7 +81,8 @@ public class InputMethodManagerCompatWrapper {
     public Map<InputMethodInfoCompatWrapper, List<InputMethodSubtypeCompatWrapper>>
             getShortcutInputMethodsAndSubtypes() {
         Object retval = CompatUtils.invoke(mImm, null, METHOD_getShortcutInputMethodsAndSubtypes);
-        if (!(retval instanceof Map)) return null;
+        // Returns an empty map
+        if (!(retval instanceof Map)) return Collections.emptyMap();
         Map<InputMethodInfoCompatWrapper, List<InputMethodSubtypeCompatWrapper>> shortcutMap =
                 new HashMap<InputMethodInfoCompatWrapper, List<InputMethodSubtypeCompatWrapper>>();
         final Map<?, ?> retvalMap = (Map<?, ?>)retval;
@@ -100,8 +104,7 @@ public class InputMethodManagerCompatWrapper {
     }
 
     public boolean switchToLastInputMethod(IBinder token) {
-        if (mImm == null) return false;
+        return (Boolean)CompatUtils.invoke(mImm, false, METHOD_switchToLastInputMethod, token);
-        return mImm.switchToLastInputMethod(token);
     }
 
     public List<InputMethodInfoCompatWrapper> getEnabledInputMethodList() {

java/src/com/android/inputmethod/compat/InputMethodSubtypeCompatWrapper.java

@@ -18,6 +18,7 @@ package com.android.inputmethod.compat;
 
 import com.android.inputmethod.latin.LatinImeLogger;
 
+import android.text.TextUtils;
 import android.util.Log;
 
 import java.lang.reflect.Method;
@@ -27,6 +28,8 @@ import java.lang.reflect.Method;
 public final class InputMethodSubtypeCompatWrapper extends AbstractCompatWrapper {
     private static final boolean DBG = LatinImeLogger.sDBG;
     private static final String TAG = InputMethodSubtypeCompatWrapper.class.getSimpleName();
+    private static final String DEFAULT_LOCALE = "en_US";
+    private static final String DEFAULT_MODE = "keyboard";
 
     public static final Class<?> CLASS_InputMethodSubtype =
             CompatUtils.getClass("android.view.inputmethod.InputMethodSubtype");
@@ -46,7 +49,8 @@ public final class InputMethodSubtypeCompatWrapper extends AbstractCompatWrapper
             CompatUtils.getMethod(CLASS_InputMethodSubtype, "getExtraValueOf", String.class);
 
     public InputMethodSubtypeCompatWrapper(Object subtype) {
-        super(CLASS_InputMethodSubtype.isInstance(subtype) ? subtype : null);
+        super((CLASS_InputMethodSubtype != null && CLASS_InputMethodSubtype.isInstance(subtype))
+                ? subtype : null);
         if (DBG) {
             Log.d(TAG, "CreateInputMethodSubtypeCompatWrapper");
         }
@@ -61,11 +65,15 @@ public final class InputMethodSubtypeCompatWrapper extends AbstractCompatWrapper
     }
 
     public String getLocale() {
-        return (String)CompatUtils.invoke(mObj, null, METHOD_getLocale);
+        final String s = (String)CompatUtils.invoke(mObj, null, METHOD_getLocale);
+        if (TextUtils.isEmpty(s)) return DEFAULT_LOCALE;
+        return s;
     }
 
     public String getMode() {
-        return (String)CompatUtils.invoke(mObj, null, METHOD_getMode);
+        String s = (String)CompatUtils.invoke(mObj, null, METHOD_getMode);
+        if (TextUtils.isEmpty(s)) return DEFAULT_MODE;
+        return s;
     }
 
     public String getExtraValue() {
@@ -73,7 +81,7 @@ public final class InputMethodSubtypeCompatWrapper extends AbstractCompatWrapper
     }
 
     public boolean containsExtraValueKey(String key) {
-        return (Boolean)CompatUtils.invoke(mObj, null, METHOD_containsExtraValueKey, key);
+        return (Boolean)CompatUtils.invoke(mObj, false, METHOD_containsExtraValueKey, key);
     }
 
     public String getExtraValueOf(String key) {

java/src/com/android/inputmethod/deprecated/compat/VoiceInputLoggerCompatUtils.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 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.
+ */
+
+package com.android.inputmethod.deprecated.compat;
+
+import com.android.common.userhappiness.UserHappinessSignals;
+import com.android.inputmethod.compat.CompatUtils;
+
+import java.lang.reflect.Method;
+
+public class VoiceInputLoggerCompatUtils {
+    public static final String EXTRA_TEXT_REPLACED_LENGTH = "length";
+    public static final String EXTRA_BEFORE_N_BEST_CHOOSE = "before";
+    public static final String EXTRA_AFTER_N_BEST_CHOOSE = "after";
+    private static final Method METHOD_UserHappinessSignals_setHasVoiceLoggingInfo =
+            CompatUtils.getMethod(UserHappinessSignals.class, "setHasVoiceLoggingInfo",
+                    boolean.class);
+
+    public static void setHasVoiceLoggingInfoCompat(boolean hasLoggingInfo) {
+        CompatUtils.invoke(null, null, METHOD_UserHappinessSignals_setHasVoiceLoggingInfo,
+                hasLoggingInfo);
+    }
+}

java/src/com/android/inputmethod/deprecated/voice/VoiceInputLogger.java

@@ -18,6 +18,7 @@ package com.android.inputmethod.deprecated.voice;
 
 import com.android.common.speech.LoggingEvents;
 import com.android.common.userhappiness.UserHappinessSignals;
+import com.android.inputmethod.deprecated.compat.VoiceInputLoggerCompatUtils;
 
 import android.content.Context;
 import android.content.Intent;
@@ -212,13 +213,12 @@ public class VoiceInputLogger {
         setHasLoggingInfo(true);
         Intent i = newLoggingBroadcast(LoggingEvents.VoiceIme.TEXT_MODIFIED);
         i.putExtra(LoggingEvents.VoiceIme.EXTRA_TEXT_MODIFIED_LENGTH, suggestionLength);
-        i.putExtra(LoggingEvents.VoiceIme.EXTRA_TEXT_REPLACED_LENGTH, replacedPhraseLength);
+        i.putExtra(VoiceInputLoggerCompatUtils.EXTRA_TEXT_REPLACED_LENGTH, replacedPhraseLength);
         i.putExtra(LoggingEvents.VoiceIme.EXTRA_TEXT_MODIFIED_TYPE,
                 LoggingEvents.VoiceIme.TEXT_MODIFIED_TYPE_CHOOSE_SUGGESTION);
-
         i.putExtra(LoggingEvents.VoiceIme.EXTRA_N_BEST_CHOOSE_INDEX, index);
-        i.putExtra(LoggingEvents.VoiceIme.EXTRA_BEFORE_N_BEST_CHOOSE, before);
+        i.putExtra(VoiceInputLoggerCompatUtils.EXTRA_BEFORE_N_BEST_CHOOSE, before);
-        i.putExtra(LoggingEvents.VoiceIme.EXTRA_AFTER_N_BEST_CHOOSE, after);
+        i.putExtra(VoiceInputLoggerCompatUtils.EXTRA_AFTER_N_BEST_CHOOSE, after);
         mContext.sendBroadcast(i);
     }
 
@@ -257,7 +257,7 @@ public class VoiceInputLogger {
         // 2. type subject in subject field
         // 3. speak message in message field
         // 4. press send
-        UserHappinessSignals.setHasVoiceLoggingInfo(hasLoggingInfo);
+        VoiceInputLoggerCompatUtils.setHasVoiceLoggingInfoCompat(hasLoggingInfo);
     }
 
     private boolean hasLoggingInfo(){

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

@@ -210,7 +210,7 @@ public class SubtypeSwitcher {
         final String newLocale;
         final String newMode;
         final String oldMode = getCurrentSubtypeMode();
-        if (newSubtype == null) {
+        if (newSubtype == null || !newSubtype.hasOriginalObject()) {
             // Normally, newSubtype shouldn't be null. But just in case newSubtype was null,
             // fallback to the default locale.
             Log.w(TAG, "Couldn't get the current subtype.");