[TEST] Settings: Hide cutout settings if device has no notch

Signed-off-by: Jyotiraditya Panda <jyotiraditya@aospa.co>

Author: imjyotiraditya

res/xml/display_settings.xml

@@ -104,7 +104,8 @@
             android:key="cutout_settings"
             android:fragment="com.android.settings.display.CutoutFragment"
             android:icon="@drawable/ic_settings_notch_display"
-            android:title="@string/cutout_main" />
+            android:title="@string/cutout_main"
+            settings:controller="com.android.settings.display.CutoutPreferenceController" />
 
         <SwitchPreference
             android:key="show_operator_name"

src/com/android/settings/display/CutoutPreferenceController.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2021 Wave-OS
+ *
+ * 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.display
+
+import android.content.Context
+
+import com.android.settings.core.PreferenceControllerMixin
+import com.android.settingslib.core.AbstractPreferenceController
+
+class CutoutPreferenceController(context: Context?) :
+    AbstractPreferenceController(context), PreferenceControllerMixin {
+
+    override fun isAvailable(): Boolean {
+        return mContext.getResources().getBoolean(
+            com.android.internal.R.bool.config_fillMainBuiltInDisplayCutout
+        )
+    }
+
+    override fun getPreferenceKey(): String {
+        return "cutout_settings"
+    }
+}