Support Direct Boot mode

1 files changed, 77 insertions, 0 deletions

diff --git a/java/src/org/kelar/inputmethod/latin/utils/PreferenceUtils.java b/java/src/org/kelar/inputmethod/latin/utils/PreferenceUtils.java
new file mode 100644
index 000000000..e0060051b
--- /dev/null
+++ b/java/src/org/kelar/inputmethod/latin/utils/PreferenceUtils.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2024 Amin Bandali <bandali@kelar.org>
+ *
+ * This file is part of Kelar Keyboard.
+ *
+ * Kelar Keyboard is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * Kelar Keyboard is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Kelar Keyboard.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+package org.kelar.inputmethod.latin.utils;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.util.Log;
+
+import org.kelar.inputmethod.compat.BuildCompatUtils;
+import org.kelar.inputmethod.latin.BuildConfig;
+
+public class PreferenceUtils {
+    static final String TAG = PreferenceUtils.class.getSimpleName();
+    private static final int DOES_NOT_EXIST = -1;
+    private static final String PREF_MOVEDTODPS_SUFFIX = "_movedtodps";
+
+    public static SharedPreferences getSharedPreferences(Context context, String name, int mode) {
+        Context storageContext = context;
+        if (BuildCompatUtils.EFFECTIVE_SDK_INT >= Build.VERSION_CODES.N) {
+            final Context deviceContext;
+            if (context.isDeviceProtectedStorage()) {
+                deviceContext = context;
+            } else {
+                deviceContext = context.createDeviceProtectedStorageContext();
+            }
+            final String pref_name = name + PREF_MOVEDTODPS_SUFFIX;
+            if (deviceContext.getSharedPreferences(name, mode)
+                    .getInt(pref_name, DOES_NOT_EXIST) == DOES_NOT_EXIST) {
+                if (deviceContext.moveSharedPreferencesFrom(context, name)) {
+                    deviceContext.getSharedPreferences(name, mode)
+                            .edit()
+                            .putInt(pref_name, BuildConfig.VERSION_CODE)
+                            .apply();
+                } else {
+                    Log.w(TAG, String.format("Failed to migrate shared preferences %s.", name));
+                }
+            }
+            storageContext = deviceContext;
+        }
+        return storageContext.getSharedPreferences(name, mode);
+    }
+
+    public static SharedPreferences getSharedPreferences(Context context, String name) {
+        return getSharedPreferences(context, name, getDefaultSharedPreferencesMode());
+    }
+
+    public static SharedPreferences getDefaultSharedPreferences(Context context) {
+        return getSharedPreferences(context, getDefaultSharedPreferencesName(context));
+    }
+
+    private static String getDefaultSharedPreferencesName(Context context) {
+        return context.getPackageName() + "_preferences";
+    }
+
+    private static int getDefaultSharedPreferencesMode() {
+        return Context.MODE_PRIVATE;
+    }
+}