From d8f3d167353f6c6f6c5cb7a4c8e941c03b8e9511 Mon Sep 17 00:00:00 2001
From: Chung-yih Wang <cywang@google.com>
Date: Thu, 16 Sep 2010 19:00:01 +0800
Subject: [PATCH] Add a new phone state ANSWERING.

The state ANSWERING is set when we answer an incoming sip call, i.e.
sending a 'OK' response to the peer. The state will be set to ACTIVE
once the 'ACK' from peer is received.

Change-Id: I84ee3cc68222eb34e032896ce23f7431d4ad774a
---
 .../internal/telephony/CallManager.java       | 20 ++++++++++++++++---
 .../com/android/internal/telephony/Phone.java |  4 +++-
 .../internal/telephony/sip/SipPhone.java      |  1 +
 .../internal/telephony/sip/SipPhoneBase.java  |  2 ++
 4 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/telephony/java/com/android/internal/telephony/CallManager.java b/telephony/java/com/android/internal/telephony/CallManager.java
index 8bd789ca8b182..83496dca8763a 100644
--- a/telephony/java/com/android/internal/telephony/CallManager.java
+++ b/telephony/java/com/android/internal/telephony/CallManager.java
@@ -197,10 +197,12 @@ public final class CallManager {
         Phone.State s = Phone.State.IDLE;
 
         for (Phone phone : mPhones) {
-            if (phone.getState() == Phone.State.RINGING) {
-                return Phone.State.RINGING;
+            if (phone.getState() == Phone.State.ANSWERING) {
+                return Phone.State.ANSWERING;
+            } else if (phone.getState() == Phone.State.RINGING) {
+                s = Phone.State.RINGING;
             } else if (phone.getState() == Phone.State.OFFHOOK) {
-                s = Phone.State.OFFHOOK;
+                if (s == Phone.State.IDLE) s = Phone.State.OFFHOOK;
             }
         }
         return s;
@@ -289,6 +291,18 @@ public final class CallManager {
         return getFirstActiveRingingCall().getPhone();
     }
 
+    /**
+     * @return the first answering call
+     */
+    public Call getFirstAnsweringCall() {
+        for (Phone phone : mPhones) {
+            if (phone.getState() == Phone.State.ANSWERING) {
+                return phone.getForegroundCall();
+            }
+        }
+        return null;
+    }
+
     /**
      * unregister phone from CallManager
      * @param phone
diff --git a/telephony/java/com/android/internal/telephony/Phone.java b/telephony/java/com/android/internal/telephony/Phone.java
index 9afade33b006c..7464cc74ac3b1 100644
--- a/telephony/java/com/android/internal/telephony/Phone.java
+++ b/telephony/java/com/android/internal/telephony/Phone.java
@@ -55,10 +55,12 @@ public interface Phone {
      * <li>OFFHOOK = The phone is off hook. At least one call
      * exists that is dialing, active or holding and no calls are
      * ringing or waiting.</li>
+     * <li>ANSWERING = The incoming call is picked up but the
+     *  call is not established yet.</li>
      * </ul>
      */
     enum State {
-        IDLE, RINGING, OFFHOOK;
+        IDLE, RINGING, OFFHOOK, ANSWERING;
     };
 
     /**
diff --git a/telephony/java/com/android/internal/telephony/sip/SipPhone.java b/telephony/java/com/android/internal/telephony/sip/SipPhone.java
index 5af32da31b6fc..07dd35d896dea 100755
--- a/telephony/java/com/android/internal/telephony/sip/SipPhone.java
+++ b/telephony/java/com/android/internal/telephony/sip/SipPhone.java
@@ -158,6 +158,7 @@ public class SipPhone extends SipPhoneBase {
             } else {
                 throw new CallStateException("phone not ringing");
             }
+            updatePhoneState();
         }
     }
 
diff --git a/telephony/java/com/android/internal/telephony/sip/SipPhoneBase.java b/telephony/java/com/android/internal/telephony/sip/SipPhoneBase.java
index 9098e6ffb154f..2efbd175bc0e9 100755
--- a/telephony/java/com/android/internal/telephony/sip/SipPhoneBase.java
+++ b/telephony/java/com/android/internal/telephony/sip/SipPhoneBase.java
@@ -538,6 +538,8 @@ abstract class SipPhoneBase extends PhoneBase {
 
         if (getRingingCall().isRinging()) {
             state = State.RINGING;
+        } else if (getForegroundCall().isRinging()) {
+            state = State.ANSWERING;
         } else if (getForegroundCall().isIdle()
                 && getBackgroundCall().isIdle()) {
             state = State.IDLE;