From 4da3dd1458d6fa0830c58eb6d1efa72cc1fc9ffb Mon Sep 17 00:00:00 2001
From: Biswarup Pal <biswarupp@google.com>
Date: Wed, 14 Apr 2021 11:29:13 +0000
Subject: Implement controller to disable transcoding cache

This is to provide users with control over whether to disable
transcoding cache or not.

By default we keep the transcoding cache enabled.

The controller resides within the Media transcoding settings under
Developer Options.

Test: Manual. Unit tests added.
Bug: 185246580
Change-Id: I5cc85e4a254c87b5c84c32a303e8294c918748c2
---
 .../TranscodeDisableCachePreferenceController.java | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 src/com/android/settings/development/transcode/TranscodeDisableCachePreferenceController.java

(limited to 'src/com/android/settings/development/transcode/TranscodeDisableCachePreferenceController.java')

diff --git a/src/com/android/settings/development/transcode/TranscodeDisableCachePreferenceController.java b/src/com/android/settings/development/transcode/TranscodeDisableCachePreferenceController.java
new file mode 100644
index 0000000000..38c32082b9
--- /dev/null
+++ b/src/com/android/settings/development/transcode/TranscodeDisableCachePreferenceController.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2021 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.development.transcode;
+
+import android.content.Context;
+import android.os.SystemProperties;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.settings.core.TogglePreferenceController;
+
+/**
+ * The controller (in the Media transcoding settings) indicating the user's preference to disable
+ * the cache for transcoding.
+ */
+public class TranscodeDisableCachePreferenceController extends TogglePreferenceController {
+    @VisibleForTesting
+    static final String TRANSCODE_DISABLE_CACHE_SYS_PROP_KEY =
+            "persist.sys.fuse.disable_transcode_cache";
+
+    public TranscodeDisableCachePreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return SystemProperties.getBoolean(TRANSCODE_DISABLE_CACHE_SYS_PROP_KEY, false);
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        SystemProperties.set(TRANSCODE_DISABLE_CACHE_SYS_PROP_KEY, String.valueOf(isChecked));
+        return true;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+}
-- 
cgit v1.2.3