Add SDK compatibility code for new call states

Add code that translates the new call states to old call states for
in-call UIs that don't yet support background call screening.

Test: CTS
Bug: 140317205
Change-Id: I104f5f7ab3e3dc075e1d9ed5c64fcd924f9a977b

api/test-current.txt

@@ -2739,6 +2739,10 @@ package android.telecom {
     method public void exitBackgroundAudioProcessing(boolean);
   }
 
+  public static class Call.Details {
+    method public String getTelecomCallId();
+  }
+
   public final class CallAudioState implements android.os.Parcelable {
     ctor public CallAudioState(boolean, int, int, @Nullable android.bluetooth.BluetoothDevice, @NonNull java.util.Collection<android.bluetooth.BluetoothDevice>);
   }

telecomm/java/android/telecom/Call.java

@@ -728,6 +728,7 @@ public final class Call {
         }
 
         /** {@hide} */
+        @TestApi
         public String getTelecomCallId() {
             return mTelecomCallId;
         }
@@ -2137,6 +2138,9 @@ public final class Call {
         }
 
         int state = parcelableCall.getState();
+        if (mTargetSdkVersion < Phone.SDK_VERSION_R && state == Call.STATE_SIMULATED_RINGING) {
+            state = Call.STATE_RINGING;
+        }
         boolean stateChanged = mState != state;
         if (stateChanged) {
             mState = state;

telecomm/java/android/telecom/CallScreeningService.java

@@ -374,6 +374,8 @@ public abstract class CallScreeningService extends Service {
                         new ComponentName(getPackageName(), getClass().getName()));
             } else if (response.getSilenceCall()) {
                 mCallScreeningAdapter.silenceCall(callDetails.getTelecomCallId());
+            } else if (response.getShouldScreenCallFurther()) {
+                mCallScreeningAdapter.screenCallFurther(callDetails.getTelecomCallId());
             } else {
                 mCallScreeningAdapter.allowCall(callDetails.getTelecomCallId());
             }

telecomm/java/android/telecom/Phone.java

@@ -21,7 +21,6 @@ import android.annotation.UnsupportedAppUsage;
 import android.bluetooth.BluetoothDevice;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.RemoteException;
 import android.util.ArrayMap;
 
 import java.util.Collections;
@@ -111,6 +110,10 @@ public final class Phone {
         public void onSilenceRinger(Phone phone) { }
     }
 
+    // TODO: replace all usages of this with the actual R constant from Build.VERSION_CODES
+    /** @hide */
+    public static final int SDK_VERSION_R = 30;
+
     // A Map allows us to track each Call by its Telecom-specified call ID
     private final Map<String, Call> mCallByTelecomCallId = new ArrayMap<>();
 
@@ -143,6 +146,12 @@ public final class Phone {
     }
 
     final void internalAddCall(ParcelableCall parcelableCall) {
+        if (mTargetSdkVersion < SDK_VERSION_R
+                && parcelableCall.getState() == Call.STATE_AUDIO_PROCESSING) {
+            Log.i(this, "Skipping adding audio processing call for sdk compatibility");
+            return;
+        }
+
         Call call = new Call(this, parcelableCall.getId(), mInCallAdapter,
                 parcelableCall.getState(), mCallingPackage, mTargetSdkVersion);
         mCallByTelecomCallId.put(parcelableCall.getId(), call);
@@ -150,7 +159,7 @@ public final class Phone {
         checkCallTree(parcelableCall);
         call.internalUpdate(parcelableCall, mCallByTelecomCallId);
         fireCallAdded(call);
-     }
+    }
 
     final void internalRemoveCall(Call call) {
         mCallByTelecomCallId.remove(call.internalGetCallId());
@@ -164,12 +173,28 @@ public final class Phone {
     }
 
     final void internalUpdateCall(ParcelableCall parcelableCall) {
-         Call call = mCallByTelecomCallId.get(parcelableCall.getId());
-         if (call != null) {
-             checkCallTree(parcelableCall);
-             call.internalUpdate(parcelableCall, mCallByTelecomCallId);
-         }
-     }
+        if (mTargetSdkVersion < SDK_VERSION_R
+                && parcelableCall.getState() == Call.STATE_AUDIO_PROCESSING) {
+            Log.i(this, "removing audio processing call during update for sdk compatibility");
+            Call call = mCallByTelecomCallId.get(parcelableCall.getId());
+            if (call != null) {
+                internalRemoveCall(call);
+            }
+            return;
+        }
+
+        Call call = mCallByTelecomCallId.get(parcelableCall.getId());
+        if (call != null) {
+            checkCallTree(parcelableCall);
+            call.internalUpdate(parcelableCall, mCallByTelecomCallId);
+        } else {
+            // This call may have come out of audio processing. Try adding it if our target sdk
+            // version is low enough.
+            if (mTargetSdkVersion < SDK_VERSION_R) {
+                internalAddCall(parcelableCall);
+            }
+        }
+    }
 
     final void internalSetPostDialWait(String telecomId, String remaining) {
         Call call = mCallByTelecomCallId.get(telecomId);