Android: Add theme mode switcher

Similar to app themes, theme modes have to be loaded before directory initialization is ready. So we save the proper key the same way.

4 files changed, 147 insertions, 18 deletions

diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/IntSetting.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/IntSetting.java
index 11fc2a0046..c7f2b0c54c 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/IntSetting.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/IntSetting.java
@@ -34,6 +34,8 @@ public enum IntSetting implements AbstractIntSetting
   MAIN_EMULATION_ORIENTATION(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID,
           "EmulationOrientation", ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE),
   MAIN_INTERFACE_THEME(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "InterfaceTheme", 0),
+  MAIN_INTERFACE_THEME_MODE(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID,
+          "InterfaceThemeMode", -1),
   MAIN_LAST_PLATFORM_TAB(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "LastPlatformTab", 0),
   MAIN_MOTION_CONTROLS(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "MotionControls", 1),
   MAIN_IR_MODE(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "IRMode",
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
index 1f073ace20..3c0838029b 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java
@@ -8,6 +8,8 @@ import android.os.Build;
 import android.os.Bundle;
 import android.text.TextUtils;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import org.dolphinemu.dolphinemu.NativeLibrary;
 import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.activities.UserDataActivity;
@@ -328,33 +330,37 @@ public final class SettingsFragmentPresenter
 
     AbstractIntSetting appTheme = new AbstractIntSetting()
     {
-      @Override public boolean isOverridden(Settings settings)
+      @Override
+      public boolean isOverridden(Settings settings)
       {
         return IntSetting.MAIN_INTERFACE_THEME.isOverridden(settings);
       }
 
-      @Override public boolean isRuntimeEditable()
+      @Override
+      public boolean isRuntimeEditable()
       {
         // This only affects app UI
         return true;
       }
 
-      @Override public boolean delete(Settings settings)
+      @Override
+      public boolean delete(Settings settings)
       {
-        ThemeHelper.deleteThemeKey(mView.getActivity());
+        ThemeHelper.deleteThemeKey((AppCompatActivity) mView.getActivity());
         return IntSetting.MAIN_INTERFACE_THEME.delete(settings);
       }
 
-      @Override public int getInt(Settings settings)
+      @Override
+      public int getInt(Settings settings)
       {
         return IntSetting.MAIN_INTERFACE_THEME.getInt(settings);
       }
 
-      @Override public void setInt(Settings settings, int newValue)
+      @Override
+      public void setInt(Settings settings, int newValue)
       {
-        ThemeHelper.saveTheme(mView.getActivity(), newValue);
         IntSetting.MAIN_INTERFACE_THEME.setInt(settings, newValue);
-        mView.getActivity().recreate();
+        ThemeHelper.saveTheme((AppCompatActivity) mView.getActivity(), newValue);
       }
     };
 
@@ -369,6 +375,45 @@ public final class SettingsFragmentPresenter
       sl.add(new SingleChoiceSetting(mContext, appTheme, R.string.change_theme, 0,
               R.array.themeEntries, R.array.themeValues));
     }
+
+    AbstractIntSetting themeMode = new AbstractIntSetting()
+    {
+      @Override
+      public boolean isOverridden(Settings settings)
+      {
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.isOverridden(settings);
+      }
+
+      @Override
+      public boolean isRuntimeEditable()
+      {
+        // This only affects app UI
+        return true;
+      }
+
+      @Override
+      public boolean delete(Settings settings)
+      {
+        ThemeHelper.deleteThemeModeKey((AppCompatActivity) mView.getActivity());
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.delete(settings);
+      }
+
+      @Override
+      public int getInt(Settings settings)
+      {
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.getInt(settings);
+      }
+
+      @Override
+      public void setInt(Settings settings, int newValue)
+      {
+        IntSetting.MAIN_INTERFACE_THEME_MODE.setInt(settings, newValue);
+        ThemeHelper.saveThemeMode((AppCompatActivity) mView.getActivity(), newValue);
+      }
+    };
+
+    sl.add(new SingleChoiceSetting(mContext, themeMode, R.string.change_theme_mode, 0,
+            R.array.themeModeEntries, R.array.themeModeValues));
   }
 
   private void addAudioSettings(ArrayList<SettingsItem> sl)
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
index f872802a9f..15cf635615 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
@@ -13,6 +13,7 @@ import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.preference.PreferenceManager;
@@ -87,6 +88,16 @@ public final class DirectoryInitialization
               .apply();
     }
 
+    if (IntSetting.MAIN_INTERFACE_THEME_MODE.getIntGlobal() !=
+            preferences.getInt(ThemeHelper.CURRENT_THEME_MODE,
+                    AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM))
+    {
+      preferences.edit()
+              .putInt(ThemeHelper.CURRENT_THEME_MODE,
+                      IntSetting.MAIN_INTERFACE_THEME_MODE.getIntGlobal())
+              .apply();
+    }
+
     if (wiimoteIniWritten)
     {
       // This has to be done after calling NativeLibrary.Initialize(),
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ThemeHelper.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ThemeHelper.java
index ff96e033c0..040e20990a 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ThemeHelper.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ThemeHelper.java
@@ -10,7 +10,10 @@ import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.core.content.ContextCompat;
+import androidx.core.view.WindowCompat;
+import androidx.core.view.WindowInsetsControllerCompat;
 import androidx.preference.PreferenceManager;
 
 import com.google.android.material.appbar.AppBarLayout;
@@ -23,6 +26,7 @@ import org.dolphinemu.dolphinemu.ui.main.ThemeProvider;
 public class ThemeHelper
 {
   public static final String CURRENT_THEME = "current_theme";
+  public static final String CURRENT_THEME_MODE = "current_theme_mode";
 
   public static final int DEFAULT = 0;
   public static final int MONET = 1;
@@ -38,6 +42,7 @@ public class ThemeHelper
     // requested theme id is ready before the onCreate method of any given Activity.
     SharedPreferences preferences =
             PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
+    setThemeMode(activity);
     switch (preferences.getInt(CURRENT_THEME, DEFAULT))
     {
       case DEFAULT:
@@ -70,22 +75,88 @@ public class ThemeHelper
     }
   }
 
-  public static void saveTheme(@NonNull Activity activity, int themeValue)
+  private static void setThemeMode(@NonNull AppCompatActivity activity)
   {
-    SharedPreferences preferences =
-            PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
-    preferences.edit().putInt(CURRENT_THEME, themeValue).apply();
+    int themeMode = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .getInt(CURRENT_THEME_MODE, AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
+    activity.getDelegate().setLocalNightMode(themeMode);
+
+    WindowInsetsControllerCompat windowController =
+            WindowCompat.getInsetsController(activity.getWindow(),
+                    activity.getWindow().getDecorView());
+    int systemReportedThemeMode =
+            activity.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+
+    switch (themeMode)
+    {
+      case AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM:
+        switch (systemReportedThemeMode)
+        {
+          case Configuration.UI_MODE_NIGHT_NO:
+            setLightModeSystemBars(windowController);
+            break;
+          case Configuration.UI_MODE_NIGHT_YES:
+            setDarkModeSystemBars(windowController);
+            break;
+        }
+        break;
+      case AppCompatDelegate.MODE_NIGHT_NO:
+        setLightModeSystemBars(windowController);
+        break;
+      case AppCompatDelegate.MODE_NIGHT_YES:
+        setDarkModeSystemBars(windowController);
+        break;
+    }
   }
 
-  public static void deleteThemeKey(@NonNull Activity activity)
+  private static void setLightModeSystemBars(@NonNull WindowInsetsControllerCompat windowController)
   {
-    SharedPreferences preferences =
-            PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
-    preferences.edit().remove(CURRENT_THEME).apply();
-    activity.setTheme(R.style.Theme_Dolphin_Main);
+    windowController.setAppearanceLightStatusBars(true);
+    windowController.setAppearanceLightNavigationBars(true);
+  }
+
+  private static void setDarkModeSystemBars(@NonNull WindowInsetsControllerCompat windowController)
+  {
+    windowController.setAppearanceLightStatusBars(false);
+    windowController.setAppearanceLightNavigationBars(false);
+  }
+
+  public static void saveTheme(@NonNull AppCompatActivity activity, int themeValue)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .putInt(CURRENT_THEME, themeValue)
+            .apply();
+    activity.recreate();
+  }
+
+  public static void deleteThemeKey(@NonNull AppCompatActivity activity)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .remove(CURRENT_THEME)
+            .apply();
     activity.recreate();
   }
 
+  public static void saveThemeMode(@NonNull AppCompatActivity activity, int themeModeValue)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .putInt(CURRENT_THEME_MODE, themeModeValue)
+            .apply();
+    setThemeMode(activity);
+  }
+
+  public static void deleteThemeModeKey(@NonNull AppCompatActivity activity)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .remove(CURRENT_THEME_MODE)
+            .apply();
+    setThemeMode(activity);
+  }
+
   public static void setCorrectTheme(AppCompatActivity activity)
   {
     int currentTheme = ((ThemeProvider) activity).getThemeId();
@@ -110,7 +181,7 @@ public class ThemeHelper
     }
   }
 
-  public static void setNavigationBarColor(Activity activity, @ColorInt int color)
+  public static void setNavigationBarColor(@NonNull Activity activity, @ColorInt int color)
   {
     int gestureType = InsetsHelper.getSystemGestureType(activity.getApplicationContext());
     int orientation = activity.getResources().getConfiguration().orientation;