Add flag to reset notification channel importance

Add a button in development option to unlock user previously changed
notification importance and allow NAS to change the importance

Test: make RunSettingsRoboTests
Change-Id: I55b5349d6a17a383888c59b9126832c2fb8c58a0

res/layout/reset_importance_button.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <Button
+        android:id="@+id/reset_importance_button"
+        style="@style/ActionPrimaryButton"
+        android:layout_marginStart="@dimen/screen_margin_sides"
+        android:text="@string/asst_importance_reset_title"
+        android:layout_gravity="start"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"/>
+
+</LinearLayout>

res/values/strings.xml

@@ -8257,6 +8257,12 @@
     <!-- Configure Notifications: setting summary [CHAR LIMIT=200] -->
     <string name="asst_feedback_indicator_summary">Indicate adjustments made to notifications and show the option to provide feedback to the system</string>
 
+    <!-- Configure Notifications: setting title [CHAR LIMIT=80] -->
+    <string name="asst_importance_reset_title">Reset notification importance</string>
+
+    <!-- Configure Notifications: setting summary [CHAR LIMIT=200] -->
+    <string name="asst_importance_reset_summary">Reset user changed importance settings and allow notification assistant to prioritize</string>
+
     <!-- Configure Notifications: setting title [CHAR LIMIT=80] -->
     <string name="asst_capabilities_actions_replies_title">Suggested actions and replies</string>
 

res/xml/development_settings.xml

@@ -610,6 +610,13 @@
             android:title="@string/asst_feedback_indicator_title"
             settings:controller="com.android.settings.notification.AssistantFeedbackPreferenceController" />
 
+        <com.android.settingslib.widget.LayoutPreference
+            android:key="asst_importance_reset"
+            android:title="@string/asst_importance_reset_title"
+            android:selectable="false"
+            android:layout="@layout/reset_importance_button"
+            settings:controller="com.android.settings.notification.ImportanceResetPreferenceController" />
+
         <Preference
             android:key="inactive_apps"
             android:title="@string/inactive_apps_title"

src/com/android/settings/notification/ImportanceResetPreferenceController.java

@@ -0,0 +1,68 @@
+/*
+ * 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.notification;
+
+import android.content.Context;
+import android.view.View;
+import android.widget.Button;
+
+import androidx.preference.Preference;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.LayoutPreference;
+
+public class ImportanceResetPreferenceController extends BasePreferenceController implements
+        View.OnClickListener {
+
+    public static final String KEY = "asst_importance_reset";
+    private static final String TAG = "ResetImportanceButton";
+
+    private NotificationBackend mBackend;
+    private Button mButton;
+
+    public ImportanceResetPreferenceController(Context context, String key) {
+        super(context, key);
+        mBackend = new NotificationBackend();
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+
+        mButton = ((LayoutPreference) preference)
+                .findViewById(R.id.reset_importance_button);
+        mButton.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        mBackend.resetNotificationImportance();
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+}
+

src/com/android/settings/notification/NotificationBackend.java

@@ -585,6 +585,14 @@ public class NotificationBackend {
         sm.requestPinShortcut(shortcutInfo, null);
     }
 
+    public void resetNotificationImportance() {
+        try {
+            sINM.unlockAllNotificationChannels();
+        } catch (Exception e) {
+            Log.w(TAG, "Error calling NoMan", e);
+        }
+    }
+
     /**
      * NotificationsSentState contains how often an app sends notifications and how recently it sent
      * one.

tests/robotests/src/com/android/settings/notification/ImportanceResetPreferenceControllerTest.java

@@ -0,0 +1,78 @@
+/*
+ * 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.notification;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.view.View;
+
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settingslib.widget.LayoutPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.util.ReflectionHelpers;
+
+@RunWith(RobolectricTestRunner.class)
+public class ImportanceResetPreferenceControllerTest {
+
+    private static final String KEY = "asst_importance_reset";
+    private ImportanceResetPreferenceController mController;
+
+    @Mock
+    private PreferenceScreen mScreen;
+    private LayoutPreference mPreference;
+    private Context mContext;
+    @Mock
+    private NotificationBackend mBackend;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = RuntimeEnvironment.application;
+        mPreference = new LayoutPreference(mContext, R.layout.reset_importance_button);
+        when(mScreen.findPreference(anyString())).thenReturn(mPreference);
+        mController = new ImportanceResetPreferenceController(mContext, KEY);
+        mController.displayPreference(mScreen);
+
+        ReflectionHelpers.setField(mController, "mBackend", mBackend);
+    }
+
+    @Test
+    public void onClick_callReset() {
+        final View view = mPreference.findViewById(R.id.reset_importance_button);
+        mController.updateState(mPreference);
+        assertThat(view.getVisibility()).isEqualTo(View.VISIBLE);
+        view.performClick();
+
+        verify(mBackend, times(1)).resetNotificationImportance();
+    }
+}