private void processCallStateChange(ImsCall imsCall, ImsPhoneCall.State state, int cause) {
if (DBG) log("processCallStateChange " + imsCall + " state=" + state + " cause=" + cause);
if (imsCall == null) return;
boolean changed = false;
ImsPhoneConnection conn = findConnection(imsCall);
if (conn == null) {
// TODO : what should be done?
return;
}
changed = conn.update(imsCall, state);
if (state == ImsPhoneCall.State.DISCONNECTED) {
changed = conn.onDisconnect(cause) || changed;
// detach the disconnected connections
conn.getCall().detach(conn);
removeConnection(conn);
}
if (changed) {
if (conn.getCall() == mHandoverCall) return;
updatePhoneState();
mPhone.notifyPreciseCallStateChanged();
}
}
/*package*/ void hangup(ImsPhoneConnection conn) throws CallStateException {
if (DBG) log("hangup connection");
if (conn.getOwner() != this) {
throw new CallStateException(
"ImsPhoneConnection " + conn + "does not belong to ImsPhoneCallTracker " + this);
}
hangup(conn.getCall());
}