From 069c6b50fcd7f5341cdd8196d60cecb14cf9d8bc Mon Sep 17 00:00:00 2001
From: Brett Chabot <brettchabot@google.com>
Date: Wed, 27 Oct 2021 17:11:36 +0000
Subject: [PATCH] Backport 'add config to disable snapshots'.

Bug: 201691826
Test: m
Merged-In: I83d9ab4a15a862ea220debdd8da8b3d5673da276
Change-Id: Ibdff22eda7be6c91e2872e5ac3ae8f2fe1e65b69
---
 core/res/res/values/config.xml                         |  3 +++
 core/res/res/values/symbols.xml                        |  2 ++
 .../com/android/server/wm/TaskSnapshotController.java  | 10 +++++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 32db1866c151a..8df1f31d08028 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -5276,4 +5276,7 @@
     <string name="config_work_badge_path_24" translatable="false">
         M20,6h-4L16,4c0,-1.11 -0.89,-2 -2,-2h-4c-1.11,0 -2,0.89 -2,2v2L4,6c-1.11,0 -1.99,0.89 -1.99,2L2,19c0,1.11 0.89,2 2,2h16c1.11,0 2,-0.89 2,-2L22,8c0,-1.11 -0.89,-2 -2,-2zM14,6h-4L10,4h4v2z
     </string>
+
+    <!-- Whether this device should support taking app snapshots on closure -->
+    <bool name="config_disableTaskSnapshots">false</bool>
 </resources>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 758990df7159d..f80c2220a2864 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -4481,4 +4481,6 @@
   <java-symbol type="array" name="config_roundedCornerBottomRadiusAdjustmentArray" />
   <java-symbol type="bool" name="config_secondaryBuiltInDisplayIsRound" />
   <java-symbol type="array" name="config_builtInDisplayIsRoundArray" />
+  <java-symbol type="bool" name="config_disableTaskSnapshots" />
+
 </resources>
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index ce93f2495c223..85e49ee4ea05d 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -118,6 +118,11 @@ class TaskSnapshotController {
      */
     private final boolean mIsRunningOnWear;
 
+    /**
+     * Flag indicating if device configuration has disabled app snapshots.
+     */
+    private final boolean mConfigDisableTaskSnapshots;
+
     TaskSnapshotController(WindowManagerService service) {
         mService = service;
         mPersister = new TaskSnapshotPersister(mService, Environment::getDataSystemCeDirectory);
@@ -131,6 +136,8 @@ class TaskSnapshotController {
             PackageManager.FEATURE_WATCH);
         mHighResTaskSnapshotScale = mService.mContext.getResources().getFloat(
                 com.android.internal.R.dimen.config_highResTaskSnapshotScale);
+        mConfigDisableTaskSnapshots = mService.mContext.getResources().getBoolean(
+                            com.android.internal.R.bool.config_disableTaskSnapshots);
     }
 
     void systemReady() {
@@ -494,7 +501,8 @@ class TaskSnapshotController {
     }
 
     boolean shouldDisableSnapshots() {
-        return mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT;
+        return mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT
+            || mConfigDisableTaskSnapshots;
     }
 
     /**