1package eu.siacs.conversations;
 2
 3import android.app.Application;
 4import android.content.Context;
 5import android.content.SharedPreferences;
 6import android.preference.PreferenceManager;
 7
 8import androidx.appcompat.app.AppCompatDelegate;
 9
10import com.google.android.material.color.DynamicColors;
11import com.google.android.material.color.DynamicColorsOptions;
12
13public class Conversations extends Application {
14
15    @Override
16    public void onCreate() {
17        super.onCreate();
18        applyThemeSettings();
19    }
20
21    public void applyThemeSettings() {
22        final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
23        if (sharedPreferences == null) {
24            return;
25        }
26        applyThemeSettings(sharedPreferences);
27    }
28
29    private void applyThemeSettings(final SharedPreferences sharedPreferences) {
30        AppCompatDelegate.setDefaultNightMode(getDesiredNightMode(this, sharedPreferences));
31        var dynamicColorsOptions =
32                new DynamicColorsOptions.Builder()
33                        .setPrecondition((activity, t) -> isDynamicColorsDesired(activity))
34                        .build();
35        DynamicColors.applyToActivitiesIfAvailable(this, dynamicColorsOptions);
36    }
37
38    public static int getDesiredNightMode(final Context context) {
39        final var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
40        if (sharedPreferences == null) {
41            return AppCompatDelegate.getDefaultNightMode();
42        }
43        return getDesiredNightMode(context, sharedPreferences);
44    }
45
46    public static boolean isDynamicColorsDesired(final Context context) {
47        final var preferences = PreferenceManager.getDefaultSharedPreferences(context);
48        return preferences.getBoolean("dynamic_colors", false);
49    }
50
51    private static int getDesiredNightMode(
52            final Context context, final SharedPreferences sharedPreferences) {
53        final String theme =
54                sharedPreferences.getString("theme", context.getString(R.string.theme));
55        return getDesiredNightMode(theme);
56    }
57
58    public static int getDesiredNightMode(final String theme) {
59        if ("automatic".equals(theme)) {
60            return AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM;
61        } else if ("light".equals(theme)) {
62            return AppCompatDelegate.MODE_NIGHT_NO;
63        } else {
64            return AppCompatDelegate.MODE_NIGHT_YES;
65        }
66    }
67}