Add method to check for ongoing video call or conference call.

Replace the isVideoCallPresent method on Phone (which is used only in the
accessibility settings screen) with a version that determines if there are
any ongoing video calls, downgraded video calls, or conference calls.

Test: Manual testing.
Bug: 28512893
Change-Id: If8b5db80aa0147234f6c4c0a8adf85f4643a2680

1 files changed, 30 insertions, 11 deletions

diff --git a/src/java/com/android/internal/telephony/Phone.java b/src/java/com/android/internal/telephony/Phone.java
index c01be8597..13d0898c9 100644
--- a/src/java/com/android/internal/telephony/Phone.java
+++ b/src/java/com/android/internal/telephony/Phone.java
@@ -50,10 +50,12 @@ import android.telephony.SubscriptionManager;
 import android.telephony.VoLteServiceState;
 import android.text.TextUtils;
 
+import com.android.ims.ImsCall;
 import com.android.ims.ImsConfig;
 import com.android.ims.ImsManager;
 import com.android.internal.R;
 import com.android.internal.telephony.dataconnection.DcTracker;
+import com.android.internal.telephony.imsphone.ImsPhoneCall;
 import com.android.internal.telephony.test.SimulatedRadioControl;
 import com.android.internal.telephony.uicc.IccCardApplicationStatus.AppType;
 import com.android.internal.telephony.uicc.IccFileHandler;
@@ -2072,23 +2074,40 @@ public abstract class Phone extends Handler implements PhoneInternalInterface {
         return videoState;
     }
 
-    private boolean isVideoCall(Call call) {
-        int videoState = getVideoState(call);
-        return (VideoProfile.isVideo(videoState));
+    /**
+     * Determines if the specified call currently is or was at some point a video call, or if it is
+     * a conference call.
+     * @param call The call.
+     * @return {@code true} if the call is or was a video call or is a conference call,
+     *      {@code false} otherwise.
+     */
+    private boolean isVideoCallOrConference(Call call) {
+        if (call.isMultiparty()) {
+            return true;
+        }
+
+        boolean isDowngradedVideoCall = false;
+        if (call instanceof ImsPhoneCall) {
+            ImsPhoneCall imsPhoneCall = (ImsPhoneCall) call;
+            ImsCall imsCall = imsPhoneCall.getImsCall();
+            return imsCall != null && (imsCall.isVideoCall() ||
+                    imsCall.wasVideoCall());
+        }
+        return isDowngradedVideoCall;
     }
 
     /**
-     * @return {@code true} if video call is present, false otherwise.
+     * @return {@code true} if an IMS video call or IMS conference is present, false otherwise.
      */
-    public boolean isVideoCallPresent() {
-        boolean isVideoCallActive = false;
+    public boolean isImsVideoCallOrConferencePresent() {
+        boolean isPresent = false;
         if (mImsPhone != null) {
-            isVideoCallActive = isVideoCall(mImsPhone.getForegroundCall()) ||
-                    isVideoCall(mImsPhone.getBackgroundCall()) ||
-                    isVideoCall(mImsPhone.getRingingCall());
+            isPresent = isVideoCallOrConference(mImsPhone.getForegroundCall()) ||
+                    isVideoCallOrConference(mImsPhone.getBackgroundCall()) ||
+                    isVideoCallOrConference(mImsPhone.getRingingCall());
         }
-        Rlog.d(LOG_TAG, "isVideoCallActive: " + isVideoCallActive);
-        return isVideoCallActive;
+        Rlog.d(LOG_TAG, "isImsVideoCallOrConferencePresent: " + isPresent);
+        return isPresent;
     }
 
     /**