hopefully fix spell checker language detection

app/src/main/java/org/dslul/openboard/inputmethod/latin/settings/SubtypeSettings.kt

@@ -248,7 +248,8 @@ private fun loadEnabledSubtypes(context: Context) {
     }
 }
 
-private var initialized = false
+var initialized = false
+    private set
 private val enabledSubtypes = mutableListOf<InputMethodSubtype>()
 private val resourceSubtypesByLocale = LinkedHashMap<String, MutableList<InputMethodSubtype>>(100)
 private val additionalSubtypes = mutableListOf<InputMethodSubtype>()

app/src/main/java/org/dslul/openboard/inputmethod/latin/spellcheck/AndroidWordLevelSpellCheckerSession.java

@@ -17,6 +17,7 @@
 package org.dslul.openboard.inputmethod.latin.spellcheck;
 
 import android.content.ContentResolver;
+import android.content.SharedPreferences;
 import android.database.ContentObserver;
 import android.os.Binder;
 import android.provider.UserDictionary.Words;
@@ -38,6 +39,9 @@ import org.dslul.openboard.inputmethod.latin.common.LocaleUtils;
 import org.dslul.openboard.inputmethod.latin.common.StringUtils;
 import org.dslul.openboard.inputmethod.latin.define.DebugFlags;
 import com.android.inputmethod.latin.utils.BinaryDictionaryUtils;
+
+import org.dslul.openboard.inputmethod.latin.settings.SubtypeSettingsKt;
+import org.dslul.openboard.inputmethod.latin.utils.DeviceProtectedUtils;
 import org.dslul.openboard.inputmethod.latin.utils.ScriptUtils;
 import org.dslul.openboard.inputmethod.latin.utils.StatsUtils;
 import org.dslul.openboard.inputmethod.latin.utils.SuggestionResults;
@@ -148,17 +152,21 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
 
         final InputMethodManager imm;
         if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
-            imm = mService.getApplicationContext()
-                    .getSystemService(InputMethodManager.class);
+            imm = mService.getApplicationContext().getSystemService(InputMethodManager.class);
             if (imm != null) {
-                final InputMethodSubtype currentInputMethodSubtype =
-                        imm.getCurrentInputMethodSubtype();
+                final InputMethodSubtype currentInputMethodSubtype = imm.getCurrentInputMethodSubtype();
                 if (currentInputMethodSubtype != null) {
                     final String localeString = currentInputMethodSubtype.getLocale();
                     if (!TextUtils.isEmpty(localeString)) {
                         // Use keyboard locale if available in the spell checker
                         return localeString;
                     }
+                    // localeString for this app is always empty, get it from settings if possible
+                    // and we're sure this app is used
+                    if (SubtypeSettingsKt.getInitialized() && "dummy".equals(currentInputMethodSubtype.getExtraValue())) {
+                        final SharedPreferences prefs = DeviceProtectedUtils.getSharedPreferences(mService);
+                        return SubtypeSettingsKt.getSelectedSubtype(prefs).getLocale();
+                    }
                 }
             }
         }
@@ -253,8 +261,7 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
         // If the lower case version is not in the dictionary, it's still possible
         // that we have an all-caps version of a word that needs to be capitalized
         // according to the dictionary. E.g. "GERMANS" only exists in the dictionary as "Germans".
-        return mService.isValidWord(mLocale,
-                StringUtils.capitalizeFirstAndDowncaseRest(lowerCaseText, mLocale));
+        return mService.isValidWord(mLocale, StringUtils.capitalizeFirstAndDowncaseRest(lowerCaseText, mLocale));
     }
 
     // Note : this must be reentrant
@@ -274,11 +281,10 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
             updateLocale();
             // It's good to keep this not local specific since the standard
             // ones may show up in other languages also.
-            String text = textInfo.getText().
-                    replaceAll(AndroidSpellCheckerService.APOSTROPHE,
-                            AndroidSpellCheckerService.SINGLE_QUOTE).
-                    replaceAll("^" + quotesRegexp, "").
-                    replaceAll(quotesRegexp + "$", "");
+            String text = textInfo.getText()
+                    .replaceAll(AndroidSpellCheckerService.APOSTROPHE, AndroidSpellCheckerService.SINGLE_QUOTE)
+                    .replaceAll("^" + quotesRegexp, "")
+                    .replaceAll(quotesRegexp + "$", "");
 
             final String localeRegex = scriptToPunctuationRegexMap.get(
                     ScriptUtils.getScriptFromSpellCheckerLocale(mLocale)
@@ -289,8 +295,7 @@ public abstract class AndroidWordLevelSpellCheckerSession extends Session {
             }
 
             if (!mService.hasMainDictionaryForLocale(mLocale)) {
-                return AndroidSpellCheckerService.getNotInDictEmptySuggestions(
-                        false /* reportAsTypo */);
+                return AndroidSpellCheckerService.getNotInDictEmptySuggestions(false /* reportAsTypo */);
             }
 
             // Handle special patterns like email, URI, telephone number.

app/src/main/java/org/dslul/openboard/inputmethod/latin/spellcheck/SpellCheckerSettingsActivity.java

@@ -16,46 +16,31 @@
 
 package org.dslul.openboard.inputmethod.latin.spellcheck;
 
-import android.annotation.TargetApi;
-import android.content.Intent;
-import android.os.Build;
 import android.os.Bundle;
-import android.preference.PreferenceActivity;
 
 import org.dslul.openboard.inputmethod.latin.permissions.PermissionsManager;
-import org.dslul.openboard.inputmethod.latin.utils.FragmentUtils;
 
+import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 
 /**
  * Spell checker preference screen.
  */
-public final class SpellCheckerSettingsActivity extends PreferenceActivity
+public final class SpellCheckerSettingsActivity extends AppCompatActivity
         implements ActivityCompat.OnRequestPermissionsResultCallback {
     private static final String DEFAULT_FRAGMENT = SpellCheckerSettingsFragment.class.getName();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        getSupportFragmentManager().beginTransaction()
+                .replace(android.R.id.content, new SpellCheckerSettingsFragment())
+                .commit();
     }
 
     @Override
-    public Intent getIntent() {
-        final Intent modIntent = new Intent(super.getIntent());
-        modIntent.putExtra(EXTRA_SHOW_FRAGMENT, DEFAULT_FRAGMENT);
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
-        return modIntent;
-    }
-
-    @TargetApi(Build.VERSION_CODES.KITKAT)
-    @Override
-    public boolean isValidFragment(String fragmentName) {
-        return FragmentUtils.isValidFragment(fragmentName);
-    }
-
-    @Override
-    public void onRequestPermissionsResult(
-            int requestCode, String[] permissions, int[] grantResults) {
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
         PermissionsManager.get(this).onRequestPermissionsResult(
                 requestCode, permissions, grantResults);
     }

app/src/main/res/xml/method_dummy.xml

@@ -16,6 +16,7 @@ the system picker crashes on some devices for unknown reasons.
         android:isDefault="@bool/im_is_default"
         android:supportsSwitchingToNextInputMethod="true">
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
+            android:imeSubtypeExtraValue="dummy"
             android:imeSubtypeMode="keyboard"
             android:isAsciiCapable="true"
     />