DO NOT MERGE Add KEY_USE_RCS_PRESENCE_BOOL carrier config option.

- New carrier config option is used to determine if presence is used
to determine whether a contact is capable of video calling.
- Also, improve logging for PhoneAccount capabilities.

Bug: 20257833
Change-Id: Ifcc7df95677eb4399f08eb8849c4004892957e90

api/system-current.txt

@@ -32927,6 +32927,7 @@ package android.telephony {
     field public static final java.lang.String KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL = "support_swap_after_merge_bool";
     field public static final java.lang.String KEY_USE_HFA_FOR_PROVISIONING_BOOL = "use_hfa_for_provisioning_bool";
     field public static final java.lang.String KEY_USE_OTASP_FOR_PROVISIONING_BOOL = "use_otasp_for_provisioning_bool";
+    field public static final java.lang.String KEY_USE_RCS_PRESENCE_BOOL = "use_rcs_presence_bool";
     field public static final java.lang.String KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL = "voicemail_notification_persistent_bool";
     field public static final java.lang.String KEY_VOICE_PRIVACY_DISABLE_UI_BOOL = "voice_privacy_disable_ui_bool";
     field public static final java.lang.String KEY_VOLTE_REPLACEMENT_RAT_INT = "volte_replacement_rat_int";

telecomm/java/android/telecom/PhoneAccount.java

@@ -626,7 +626,7 @@ public final class PhoneAccount implements Parcelable {
                 .append("] PhoneAccount: ")
                 .append(mAccountHandle)
                 .append(" Capabilities: ")
-                .append(mCapabilities)
+                .append(capabilitiesToString(mCapabilities))
                 .append(" Schemes: ");
         for (String scheme : mSupportedUriSchemes) {
             sb.append(scheme)
@@ -635,4 +635,42 @@ public final class PhoneAccount implements Parcelable {
         sb.append("]");
         return sb.toString();
     }
+
+    /**
+     * Generates a string representation of a capabilities bitmask.
+     *
+     * @param capabilities The capabilities bitmask.
+     * @return String representation of the capabilities bitmask.
+     */
+    private String capabilitiesToString(int capabilities) {
+        StringBuilder sb = new StringBuilder();
+        if (hasCapabilities(CAPABILITY_VIDEO_CALLING)) {
+            sb.append("Video ");
+        }
+        if (hasCapabilities(CAPABILITY_VIDEO_CALLING_RELIES_ON_PRESENCE)) {
+            sb.append("Presence ");
+        }
+        if (hasCapabilities(CAPABILITY_CALL_PROVIDER)) {
+            sb.append("CallProvider ");
+        }
+        if (hasCapabilities(CAPABILITY_CALL_SUBJECT)) {
+            sb.append("CallSubject ");
+        }
+        if (hasCapabilities(CAPABILITY_CONNECTION_MANAGER)) {
+            sb.append("ConnectionMgr ");
+        }
+        if (hasCapabilities(CAPABILITY_EMERGENCY_CALLS_ONLY)) {
+            sb.append("EmergOnly ");
+        }
+        if (hasCapabilities(CAPABILITY_MULTI_USER)) {
+            sb.append("MultiUser ");
+        }
+        if (hasCapabilities(CAPABILITY_PLACE_EMERGENCY_CALLS)) {
+            sb.append("PlaceEmerg ");
+        }
+        if (hasCapabilities(CAPABILITY_SIM_SUBSCRIPTION)) {
+            sb.append("SimSub ");
+        }
+        return sb.toString();
+    }
 }

telephony/java/android/telephony/CarrierConfigManager.java

@@ -558,6 +558,23 @@ public class CarrierConfigManager {
     public static final String BOOL_ALLOW_VIDEO_PAUSE =
             "bool_allow_video_pause";
 
+
+    /**
+     * Flag indicating whether the carrier supports RCS presence indication for video calls.  When
+     * {@code true}, the carrier supports RCS presence indication for video calls.  When presence
+     * is supported, the device should use the
+     * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE} bit mask and set the
+     * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE_VT_CAPABLE} bit to indicate
+     * whether each contact supports video calling.  The UI is made aware that presence is enabled
+     * via {@link android.telecom.PhoneAccount#CAPABILITY_VIDEO_CALLING_RELIES_ON_PRESENCE}
+     * and can choose to hide or show the video calling icon based on whether a contact supports
+     * video.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final String KEY_USE_RCS_PRESENCE_BOOL = "use_rcs_presence_bool";
+
     /** The default value for every variable. */
     private final static PersistableBundle sDefaults;
 
@@ -672,6 +689,7 @@ public class CarrierConfigManager {
         sDefaults.putString(KEY_MMS_UA_PROF_URL_STRING, "");
         sDefaults.putString(KEY_MMS_USER_AGENT_STRING, "");
         sDefaults.putBoolean(KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL, true);
+        sDefaults.putBoolean(KEY_USE_RCS_PRESENCE_BOOL, false);
     }
 
     /**