From 66fd9dbad2b20c5b392e874ff79edf30e79c287a Mon Sep 17 00:00:00 2001
From: Peter Wang <tpwang@google.com>
Date: Tue, 15 Sep 2020 17:44:07 -0700
Subject: [PATCH] Added an option in reset menu in Settings to enable resetting
 Euicc data only

Bug: 159650638
Fix: 159650638
Test: Local
Change-Id: Ia260b47a4dd0ddf0363740891b5e1d818c8631b7
Merged-In: Ia260b47a4dd0ddf0363740891b5e1d818c8631b7
---
 res/values/strings.xml                        |  9 +-
 res/xml/reset_dashboard_fragment.xml          |  6 ++
 .../network/EraseEuiccDataController.java     | 56 ++++++++++++
 .../network/EraseEuiccDataDialogFragment.java | 85 +++++++++++++++++++
 .../system/ResetDashboardFragment.java        |  7 ++
 .../network/EraseEuiccDataControllerTest.java | 52 ++++++++++++
 6 files changed, 212 insertions(+), 3 deletions(-)
 create mode 100644 src/com/android/settings/network/EraseEuiccDataController.java
 create mode 100644 src/com/android/settings/network/EraseEuiccDataDialogFragment.java
 create mode 100644 tests/unit/src/com/android/settings/network/EraseEuiccDataControllerTest.java

diff --git a/res/values/strings.xml b/res/values/strings.xml
index b2c3d3817d1..55043b0ff9a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -3689,10 +3689,13 @@
     <!-- SD card & phone storage settings screen, message on screen after user selects Reset network settings [CHAR LIMIT=NONE] -->
     <string name="reset_network_desc">This will reset all network settings, including:\n\n<li>Wi\u2011Fi</li>\n<li>Mobile data</li>\n<li>Bluetooth</li>"</string>
 
-    <!-- SD card & phone storage settings screen, title for the checkbox to let user decide whether erase eSIM data together [CHAR LIMIT=50] -->
+    <!-- Erase Euicc -->
+    <!-- Confirmation button of dialog to confirm resetting user's app preferences [CHAR LIMIT=NONE] -->
+    <string name="erase_euicc_data_button">Erase</string>
+    <!-- Erase Euicc dialog and SD card & phone storage settings screen, title for the menu option and checkbox to let user decide whether erase eSIM data together [CHAR LIMIT=50] -->
     <string name="reset_esim_title">Erase downloaded SIMs</string>
-    <!-- SD card & phone storage settings screen, message for the checkbox to let user decide whether erase eSIM data together [CHAR LIMIT=NONE] -->
-    <string name="reset_esim_desc">To download replacement SIMs, contact your carrier. This won\u2019t cancel any mobile service plans.</string>
+    <!-- Erase Euicc dialog and SD card & phone storage settings screen, message for the checkbox to let user decide whether erase eSIM data together [CHAR LIMIT=NONE] -->
+    <string name="reset_esim_desc">This won’t cancel any mobile service plans. To download replacement SIMs, contact your carrier.</string>
 
     <!-- SD card & phone storage settings screen, button on screen after user selects Reset network settings -->
     <string name="reset_network_button_text">Reset settings</string>
diff --git a/res/xml/reset_dashboard_fragment.xml b/res/xml/reset_dashboard_fragment.xml
index ac4ccb5668e..f670274d6bd 100644
--- a/res/xml/reset_dashboard_fragment.xml
+++ b/res/xml/reset_dashboard_fragment.xml
@@ -33,6 +33,12 @@
         android:key="reset_app_prefs"
         android:title="@string/reset_app_preferences" />
 
+    <!-- Erase Euicc data -->
+    <Preference
+        android:key="erase_euicc_data"
+        android:title="@string/reset_esim_title"
+        settings:controller="com.android.settings.network.EraseEuiccDataController" />
+
     <!-- Factory reset -->
     <com.android.settingslib.RestrictedPreference
         android:key="factory_reset"
diff --git a/src/com/android/settings/network/EraseEuiccDataController.java b/src/com/android/settings/network/EraseEuiccDataController.java
new file mode 100644
index 00000000000..d221fbd81ff
--- /dev/null
+++ b/src/com/android/settings/network/EraseEuiccDataController.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.network;
+
+import android.content.Context;
+import android.text.TextUtils;
+
+import androidx.preference.Preference;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.system.ResetDashboardFragment;
+
+/**
+ * Controller for erasing Euicc data
+ */
+public class EraseEuiccDataController extends BasePreferenceController implements
+        PreferenceControllerMixin {
+    private ResetDashboardFragment mHostFragment;
+
+    public EraseEuiccDataController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    public void setFragment(ResetDashboardFragment hostFragment) {
+        mHostFragment = hostFragment;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (!TextUtils.equals(preference.getKey(), getPreferenceKey())) {
+            return false;
+        }
+        EraseEuiccDataDialogFragment.show(mHostFragment);
+        return true;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE_UNSEARCHABLE;
+    }
+}
diff --git a/src/com/android/settings/network/EraseEuiccDataDialogFragment.java b/src/com/android/settings/network/EraseEuiccDataDialogFragment.java
new file mode 100644
index 00000000000..3aee9b1eced
--- /dev/null
+++ b/src/com/android/settings/network/EraseEuiccDataDialogFragment.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.network;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.settings.SettingsEnums;
+import android.content.DialogInterface;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.RecoverySystem;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+import com.android.settings.R;
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+import com.android.settings.system.ResetDashboardFragment;
+
+public class EraseEuiccDataDialogFragment extends InstrumentedDialogFragment implements
+        DialogInterface.OnClickListener {
+
+    public static final String TAG = "EraseEuiccDataDlg";
+    private static final String PACKAGE_NAME_EUICC_DATA_MANAGEMENT_CALLBACK =
+            "com.android.settings.network";
+
+    public static void show(ResetDashboardFragment host) {
+        final EraseEuiccDataDialogFragment dialog = new EraseEuiccDataDialogFragment();
+        dialog.setTargetFragment(host, 0 /* requestCode */);
+        final FragmentManager manager = host.getActivity().getSupportFragmentManager();
+        dialog.show(manager, TAG);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.RESET_EUICC;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        return new AlertDialog.Builder(getActivity())
+                .setTitle(R.string.reset_esim_title)
+                .setMessage(R.string.reset_esim_desc)
+                .setPositiveButton(R.string.erase_euicc_data_button, this)
+                .setNegativeButton(R.string.cancel, null)
+                .setOnDismissListener(this)
+                .create();
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        Fragment fragment = getTargetFragment();
+        if (!(fragment instanceof ResetDashboardFragment)) {
+            Log.e(TAG, "getTargetFragment return unexpected type");
+        }
+
+        if (which == DialogInterface.BUTTON_POSITIVE) {
+            AsyncTask.execute(new Runnable() {
+                @Override
+                public void run() {
+                    RecoverySystem.wipeEuiccData(
+                            getContext(), PACKAGE_NAME_EUICC_DATA_MANAGEMENT_CALLBACK);
+                }
+            });
+        }
+    }
+}
diff --git a/src/com/android/settings/system/ResetDashboardFragment.java b/src/com/android/settings/system/ResetDashboardFragment.java
index 024db146f59..e5fc8f14fd6 100644
--- a/src/com/android/settings/system/ResetDashboardFragment.java
+++ b/src/com/android/settings/system/ResetDashboardFragment.java
@@ -22,6 +22,7 @@ import android.content.Context;
 import com.android.settings.R;
 import com.android.settings.applications.manageapplications.ResetAppPrefPreferenceController;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.network.EraseEuiccDataController;
 import com.android.settings.network.NetworkResetPreferenceController;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
@@ -57,6 +58,12 @@ public class ResetDashboardFragment extends DashboardFragment {
         return buildPreferenceControllers(context, getSettingsLifecycle());
     }
 
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        use(EraseEuiccDataController.class).setFragment(this);
+    }
+
     private static List<AbstractPreferenceController> buildPreferenceControllers(Context context,
             Lifecycle lifecycle) {
         final List<AbstractPreferenceController> controllers = new ArrayList<>();
diff --git a/tests/unit/src/com/android/settings/network/EraseEuiccDataControllerTest.java b/tests/unit/src/com/android/settings/network/EraseEuiccDataControllerTest.java
new file mode 100644
index 00000000000..05b92a87c49
--- /dev/null
+++ b/tests/unit/src/com/android/settings/network/EraseEuiccDataControllerTest.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.network;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class EraseEuiccDataControllerTest {
+
+    private static final String ERASE_EUICC_DATA_PREFERENCE_KEY = "erase_euicc_data";
+
+    private EraseEuiccDataController mController;
+
+    @Before
+    public void setUp() {
+        Context context = ApplicationProvider.getApplicationContext();
+        mController = new EraseEuiccDataController(context, ERASE_EUICC_DATA_PREFERENCE_KEY);
+    }
+
+    @Test
+    public void getAvailabilityStatus_byDefault_true() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE_UNSEARCHABLE);
+    }
+}