Moved Activity management out of ActivityManager to WindowManager (37/n)
What could go wrong ;)
Note that ATMS and all other activity management files are still under
the AMS lock. We will be changing them soon to use the WMS lock, but
till then it is important to take care not to use the WMS lock for
activities stuff and AMS lock for window stuff.
Test: Existing tests pass
Bug: 80414790
Change-Id: I69f5a6e40ad892557a425e1f34be987507102136
diff --git a/services/core/java/com/android/server/wm/AssistDataReceiverProxy.java b/services/core/java/com/android/server/wm/AssistDataReceiverProxy.java
new file mode 100644
index 0000000..6756273
--- /dev/null
+++ b/services/core/java/com/android/server/wm/AssistDataReceiverProxy.java
@@ -0,0 +1,102 @@
+/*
+ * 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.server.wm;
+
+import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
+import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
+
+import android.app.IAssistDataReceiver;
+import android.graphics.Bitmap;
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.util.Log;
+
+import com.android.server.am.AssistDataRequester.AssistDataRequesterCallbacks;
+
+/**
+ * Proxies assist data to the given receiver, skipping all callbacks if the receiver dies.
+ */
+class AssistDataReceiverProxy implements AssistDataRequesterCallbacks,
+ Binder.DeathRecipient {
+
+ private static final String TAG = TAG_WITH_CLASS_NAME ? "AssistDataReceiverProxy" : TAG_ATM;
+
+ private String mCallerPackage;
+ private IAssistDataReceiver mReceiver;
+
+ public AssistDataReceiverProxy(IAssistDataReceiver receiver, String callerPackage) {
+ mReceiver = receiver;
+ mCallerPackage = callerPackage;
+ linkToDeath();
+ }
+
+ @Override
+ public boolean canHandleReceivedAssistDataLocked() {
+ // We are forwarding, so we can always receive this data
+ return true;
+ }
+
+ @Override
+ public void onAssistDataReceivedLocked(Bundle data, int activityIndex, int activityCount) {
+ if (mReceiver != null) {
+ try {
+ mReceiver.onHandleAssistData(data);
+ } catch (RemoteException e) {
+ Log.w(TAG, "Failed to proxy assist data to receiver in package="
+ + mCallerPackage, e);
+ }
+ }
+ }
+
+ @Override
+ public void onAssistScreenshotReceivedLocked(Bitmap screenshot) {
+ if (mReceiver != null) {
+ try {
+ mReceiver.onHandleAssistScreenshot(screenshot);
+ } catch (RemoteException e) {
+ Log.w(TAG, "Failed to proxy assist screenshot to receiver in package="
+ + mCallerPackage, e);
+ }
+ }
+ }
+
+ @Override
+ public void onAssistRequestCompleted() {
+ unlinkToDeath();
+ }
+
+ @Override
+ public void binderDied() {
+ unlinkToDeath();
+ }
+
+ private void linkToDeath() {
+ try {
+ mReceiver.asBinder().linkToDeath(this, 0);
+ } catch (RemoteException e) {
+ Log.w(TAG, "Could not link to client death", e);
+ }
+ }
+
+ private void unlinkToDeath() {
+ if (mReceiver != null) {
+ mReceiver.asBinder().unlinkToDeath(this, 0);
+ }
+ mReceiver = null;
+ }
+}
\ No newline at end of file