Add primary switch for vibration settings screen

This re-lands commit fd54fc34c6.

Add primary switch that updates the VIBRATE_ON user setting. Update all settings in this page to be disabled when this main toggle is
off.

Bug: 30028435
Test: VibrationMainSwitchPreferenceControllerTest
Reason for revert: Re-landing change with fixed tests
Change-Id: If9219e3d81dd698f47219c80cac10b079b63e45d

src/com/android/settings/accessibility/VibrationMainSwitchPreferenceController.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2022 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.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import android.content.Context;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Handler;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.widget.SettingsMainSwitchPreferenceController;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+/**
+ * Preference controller for the main switch setting for vibration and haptics screen.
+ *
+ * <p>This preference is controlled by the setting key{@link Settings.System#VIBRATE_ON}, and it
+ * will disable the entire settings screen once the settings is turned OFF. All device haptics will
+ * be disabled by this setting, except the flagged alerts and accessibility touch feedback.
+ */
+public class VibrationMainSwitchPreferenceController extends SettingsMainSwitchPreferenceController
+        implements LifecycleObserver, OnStart, OnStop {
+
+    private final ContentObserver mSettingObserver;
+
+    public VibrationMainSwitchPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mSettingObserver = new ContentObserver(new Handler(/* async= */ true)) {
+            @Override
+            public void onChange(boolean selfChange, Uri uri) {
+                updateState(mSwitchPreference);
+            }
+        };
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public void onStart() {
+        mContext.getContentResolver().registerContentObserver(
+                Settings.System.getUriFor(VibrationPreferenceConfig.MAIN_SWITCH_SETTING_KEY),
+                /* notifyForDescendants= */ false,
+                mSettingObserver);
+    }
+
+    @Override
+    public void onStop() {
+        mContext.getContentResolver().unregisterContentObserver(mSettingObserver);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return VibrationPreferenceConfig.isMainVibrationSwitchEnabled(
+                mContext.getContentResolver());
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        return Settings.System.putInt(mContext.getContentResolver(),
+                VibrationPreferenceConfig.MAIN_SWITCH_SETTING_KEY,
+                isChecked ? ON : OFF);
+    }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return R.string.menu_key_accessibility;
+    }
+}