Add an debug option to use spacebar switcher

Change-Id: Icc483f097696a1c5a2a7ab037afce19c9cfe837f

java/res/values/strings.xml

@@ -55,6 +55,8 @@
     <string name="prefs_suggestion_visibility_show_name">Always show</string>
     <string name="prefs_suggestion_visibility_show_only_portrait_name">Show on portrait mode</string>
     <string name="prefs_suggestion_visibility_hide_name">Always hide</string>
+    <!-- Option to enable spacebar language switcher [CHAR LIMIT=20]-->
+    <string name="prefs_use_spacebar_language_switch">Use the spacebar language switcher</string>
 
     <!-- Option to show/hide the settings key -->
     <string name="prefs_settings_key">Show settings key</string>

java/res/xml/prefs_for_debug.xml

@@ -35,6 +35,13 @@
             android:defaultValue="@string/config_default_keyboard_theme_id"
             />
 
+    <CheckBoxPreference
+            android:key="use_spacebar_language_switch"
+            android:title="@string/prefs_use_spacebar_language_switch"
+            android:persistent="true"
+            android:defaultValue="false"
+            />
+
     <CheckBoxPreference
             android:key="debug_mode"
             android:title="@string/prefs_debug_mode"

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

@@ -33,6 +33,7 @@ public class DebugSettings extends PreferenceActivity
 
     private boolean mServiceNeedsRestart = false;
     private CheckBoxPreference mDebugMode;
+    private CheckBoxPreference mUseSpacebarLanguageSwitch;
 
     @Override
     protected void onCreate(Bundle icicle) {
@@ -60,6 +61,13 @@ public class DebugSettings extends PreferenceActivity
                 updateDebugMode();
                 mServiceNeedsRestart = true;
             }
+        } else if (key.equals(SubtypeSwitcher.USE_SPACEBAR_LANGUAGE_SWITCH_KEY)) {
+            if (mUseSpacebarLanguageSwitch != null) {
+                mUseSpacebarLanguageSwitch.setChecked(
+                        prefs.getBoolean(SubtypeSwitcher.USE_SPACEBAR_LANGUAGE_SWITCH_KEY,
+                                getResources().getBoolean(
+                                        R.bool.config_use_spacebar_language_switcher)));
+            }
         }
     }
 

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

@@ -52,6 +52,8 @@ public class SubtypeSwitcher {
     private static final String VOICE_MODE = "voice";
     private static final String SUBTYPE_EXTRAVALUE_REQUIRE_NETWORK_CONNECTIVITY =
             "requireNetworkConnectivity";
+    public static final String USE_SPACEBAR_LANGUAGE_SWITCH_KEY = "use_spacebar_language_switch";
+
     private final TextUtils.SimpleStringSplitter mLocaleSplitter =
             new TextUtils.SimpleStringSplitter(LOCALE_SEPARATER);
 
@@ -61,6 +63,7 @@ public class SubtypeSwitcher {
     private /* final */ Resources mResources;
     private /* final */ ConnectivityManager mConnectivityManager;
     private /* final */ boolean mConfigUseSpacebarLanguageSwitcher;
+    private /* final */ SharedPreferences mPrefs;
     private final ArrayList<InputMethodSubtypeCompatWrapper>
             mEnabledKeyboardSubtypesOfCurrentInputMethod =
                     new ArrayList<InputMethodSubtypeCompatWrapper>();
@@ -112,10 +115,8 @@ public class SubtypeSwitcher {
         mInputLocaleStr = null;
         mCurrentSubtype = null;
         mAllEnabledSubtypesOfCurrentInputMethod = null;
-        // TODO: Voice input should be created here
         mVoiceInputWrapper = null;
-        mConfigUseSpacebarLanguageSwitcher = service.getResources().getBoolean(
+        mPrefs = prefs;
-                R.bool.config_use_spacebar_language_switcher);
 
         final NetworkInfo info = mConnectivityManager.getActiveNetworkInfo();
         mIsNetworkConnected = (info != null && info.isConnected());
@@ -133,6 +134,9 @@ public class SubtypeSwitcher {
     // Update parameters which are changed outside LatinIME. This parameters affect UI so they
     // should be updated every time onStartInputview.
     public void updateParametersOnStartInputView() {
+        mConfigUseSpacebarLanguageSwitcher = mPrefs.getBoolean(USE_SPACEBAR_LANGUAGE_SWITCH_KEY,
+                mService.getResources().getBoolean(
+                        R.bool.config_use_spacebar_language_switcher));
         updateEnabledSubtypes();
         updateShortcutIME();
     }