Reorganize notification Settings classes

The notification package was getting too big.

Test: make -j64 RunSettingsRoboTests
Fixes: 145224451
Change-Id: I25ba82f42f7a137d8adcce72dcf8089d0e018bdc

src/com/android/settings/notification/app/VibrationPreferenceController.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 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.app;
+
+import android.app.NotificationManager;
+import android.content.Context;
+import android.os.Vibrator;
+
+import androidx.preference.Preference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.notification.NotificationBackend;
+import com.android.settings.notification.app.NotificationPreferenceController;
+import com.android.settingslib.RestrictedSwitchPreference;
+
+public class VibrationPreferenceController extends NotificationPreferenceController
+        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
+
+    private static final String KEY_VIBRATE = "vibrate";
+    private final Vibrator mVibrator;
+
+    public VibrationPreferenceController(Context context, NotificationBackend backend) {
+        super(context, backend);
+        mVibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_VIBRATE;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (!super.isAvailable() || mChannel == null) {
+            return false;
+       }
+        return checkCanBeVisible(NotificationManager.IMPORTANCE_DEFAULT)
+                && !isDefaultChannel()
+                && mVibrator != null
+                && mVibrator.hasVibrator();
+    }
+
+    public void updateState(Preference preference) {
+        if (mChannel != null) {
+            RestrictedSwitchPreference pref = (RestrictedSwitchPreference) preference;
+            pref.setDisabledByAdmin(mAdmin);
+            pref.setEnabled(!pref.isDisabledByAdmin());
+            pref.setChecked(mChannel.shouldVibrate());
+        }
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        if (mChannel != null) {
+            final boolean vibrate = (Boolean) newValue;
+            mChannel.enableVibration(vibrate);
+            saveChannel();
+        }
+        return true;
+    }
+}