add setting to remove redundant popup keys

app/src/main/assets/locale_key_texts/de.txt

@@ -1,6 +1,5 @@
 [popup_keys]
 a ä
-e
 o ö
 u ü
 s ß

app/src/main/java/helium314/keyboard/keyboard/Key.java

@@ -355,6 +355,8 @@ public class Key implements Comparable<Key> {
     @NonNull
     public static Key removeRedundantPopupKeys(@NonNull final Key key,
             @NonNull final PopupKeySpec.LettersOnBaseLayout lettersOnBaseLayout) {
+        if ((key.mPopupKeysColumnAndFlags & POPUP_KEYS_FLAGS_FIXED_COLUMN) != 0)
+            return key; // don't remove anything for fixed column popup keys
         final PopupKeySpec[] popupKeys = key.getPopupKeys();
         final PopupKeySpec[] filteredPopupKeys = PopupKeySpec.removeRedundantPopupKeys(
                 popupKeys, lettersOnBaseLayout);

app/src/main/java/helium314/keyboard/keyboard/internal/KeyboardBuilder.kt

@@ -65,14 +65,11 @@ open class KeyboardBuilder<KP : KeyboardParams>(protected val mContext: Context,
     }
 
     private fun setupParams() {
-        // previously was false for nordic and serbian_qwertz, true for all others
+        val sv = Settings.getInstance().current
-        // todo: add setting? maybe users want it in a custom layout
+        mParams.mAllowRedundantPopupKeys = !sv.mRemoveRedundantPopups
-        mParams.mAllowRedundantPopupKeys = mParams.mId.mElementId != KeyboardId.ELEMENT_SYMBOLS
-
         mParams.mProximityCharsCorrectionEnabled = mParams.mId.mElementId == KeyboardId.ELEMENT_ALPHABET
                 || (mParams.mId.isAlphabetKeyboard && !mParams.mId.mSubtype.hasExtraValue(Constants.Subtype.ExtraValue.NO_SHIFT_PROXIMITY_CORRECTION))
 
-        val sv = Settings.getInstance().current
         addLocaleKeyTextsToParams(mContext, mParams, sv.mShowMorePopupKeys)
         mParams.mPopupKeyTypes.addAll(sv.mPopupKeyTypes)
         // add label source only if popup key type enabled

app/src/main/java/helium314/keyboard/latin/settings/PreferencesSettingsFragment.java

@@ -78,7 +78,7 @@ public final class PreferencesSettingsFragment extends SubScreenFragment {
         switch (key) {
             case Settings.PREF_POPUP_KEYS_ORDER, Settings.PREF_SHOW_POPUP_HINTS, Settings.PREF_SHOW_NUMBER_ROW,
                     Settings.PREF_POPUP_KEYS_LABELS_ORDER, Settings.PREF_LANGUAGE_SWITCH_KEY,
-                    Settings.PREF_SHOW_LANGUAGE_SWITCH_KEY -> mReloadKeyboard = true;
+                    Settings.PREF_SHOW_LANGUAGE_SWITCH_KEY , Settings.PREF_REMOVE_REDUNDANT_POPUPS-> mReloadKeyboard = true;
             case Settings.PREF_LOCALIZED_NUMBER_ROW -> KeyboardLayoutSet.onSystemLocaleChanged();
             case Settings.PREF_SHOW_HINTS
                     -> findPreference(Settings.PREF_POPUP_KEYS_LABELS_ORDER).setVisible(prefs.getBoolean(Settings.PREF_SHOW_HINTS, false));

app/src/main/java/helium314/keyboard/latin/settings/Settings.java

@@ -159,6 +159,7 @@ public final class Settings implements SharedPreferences.OnSharedPreferenceChang
     public static final String PREF_ABC_AFTER_EMOJI = "abc_after_emoji";
     public static final String PREF_ABC_AFTER_CLIP = "abc_after_clip";
     public static final String PREF_ABC_AFTER_SYMBOL_SPACE = "abc_after_symbol_space";
+    public static final String PREF_REMOVE_REDUNDANT_POPUPS = "remove_redundant_popups";
 
     // Emoji
     public static final String PREF_EMOJI_RECENT_KEYS = "emoji_recent_keys";

app/src/main/java/helium314/keyboard/latin/settings/SettingsValues.java

@@ -114,6 +114,7 @@ public class SettingsValues {
     public final boolean mAlphaAfterEmojiInEmojiView;
     public final boolean mAlphaAfterClipHistoryEntry;
     public final boolean mAlphaAfterSymbolAndSpace;
+    public final boolean mRemoveRedundantPopups;
 
     // From the input box
     @NonNull
@@ -258,6 +259,7 @@ public class SettingsValues {
         mAlphaAfterEmojiInEmojiView = prefs.getBoolean(Settings.PREF_ABC_AFTER_EMOJI, false);
         mAlphaAfterClipHistoryEntry = prefs.getBoolean(Settings.PREF_ABC_AFTER_CLIP, false);
         mAlphaAfterSymbolAndSpace = prefs.getBoolean(Settings.PREF_ABC_AFTER_SYMBOL_SPACE, true);
+        mRemoveRedundantPopups = prefs.getBoolean(Settings.PREF_REMOVE_REDUNDANT_POPUPS, true);
     }
 
     public boolean isApplicationSpecifiedCompletionsOn() {

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

@@ -283,6 +283,10 @@
     <string name="show_popup_hints">Show functional hints</string>
     <!-- Description of the show_popup_hints setting -->
     <string name="show_popup_hints_summary">Show hints if long-pressing a key triggers additional functionality</string>
+    <!-- Option to remove popup keys that already exist on the base keyboard -->
+    <string name="remove_redundant_popups">Remove redundant popups</string>
+    <!-- Description of the remove_redundant_popups setting -->
+    <string name="remove_redundant_popups_summary">Suppress popup keys that are present on the base layout</string>
     <!-- Title of the setting enabling long press on space key to change IME -->
     <string name="prefs_long_press_keyboard_to_change_lang">Change input method with space key</string>
     <!-- Description of the settings to change IME indicating long press triggers change. -->

app/src/main/res/xml/prefs_screen_preferences.xml

@@ -101,6 +101,13 @@
             android:defaultValue="false"
             android:persistent="true" />
 
+        <SwitchPreference
+            android:key="remove_redundant_popups"
+            android:title="@string/remove_redundant_popups"
+            android:summary="@string/remove_redundant_popups_summary"
+            android:defaultValue="true"
+            android:persistent="true" />
+
     </PreferenceCategory>
 
     <PreferenceCategory android:title="@string/settings_category_clipboard_history">