Dialer(MSIM): Dialer app support for multisim

-Call Settings support for multisim.
  Use MSimCallFeaturesSetting class to provide all
  subscription specific Call settings access to user.

-Add support to handle the following commands/request on
 voice preferred subscription for multisim
 1) ADN entry MMI commands.
 2) Voicemail dial request.
 3) PIN/PUK MMI commands.

-Add voice mail subscription prompt for multisim:
 When prompt option is enabled in MultiSIM settings,
 check for the voicemail number on all subs and allow
 voice mail request if at least one sub has voice mail
 number associated with it.

Change-Id: I9a65978ec9d6b4deba94082e2892030aca620f25
(cherry picked from commit 0efb798979072e45d4c36dcfecf1951442312df4)
(cherry picked from commit 60ee2e5b8c37e45529131d25cd9c542921e323ce)

1 files changed, 47 insertions, 6 deletions

diff --git a/src/com/android/dialer/dialpad/DialpadFragment.java b/src/com/android/dialer/dialpad/DialpadFragment.java
index 120e55f22..6ddf99378 100644
--- a/src/com/android/dialer/dialpad/DialpadFragment.java
+++ b/src/com/android/dialer/dialpad/DialpadFragment.java
@@ -1,4 +1,6 @@
 /*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Not a Contribution.
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -42,6 +44,7 @@ import android.provider.Contacts.Phones;
 import android.provider.Contacts.PhonesColumns;
 import android.provider.ContactsContract.Intents;
 import android.provider.Settings;
+import android.telephony.MSimTelephonyManager;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.PhoneStateListener;
 import android.telephony.TelephonyManager;
@@ -174,6 +177,8 @@ public class DialpadFragment extends Fragment
     // This is the amount of screen the dialpad fragment takes up when fully displayed
     private static final float DIALPAD_SLIDE_FRACTION = 0.67f;
 
+    private static final String SUBSCRIPTION_KEY = "subscription";
+
     private static final String EMPTY_NUMBER = "";
     private static final char PAUSE = ',';
     private static final char WAIT = ';';
@@ -223,6 +228,7 @@ public class DialpadFragment extends Fragment
      */
     private String mProhibitedPhoneNumberRegexp;
 
+    private int mSubscription = 0;
 
     // Last number dialed, retrieved asynchronously from the call DB
     // in onCreate. This number is displayed when the user hits the
@@ -1635,18 +1641,52 @@ public class DialpadFragment extends Fragment
      *
      * @return true if voicemail is enabled and accessibly. Note that this can be false
      * "temporarily" after the app boot.
-     * @see TelephonyManager#getVoiceMailNumber()
+     * @see MSimTelephonyManager#getVoiceMailNumber()
      */
     private boolean isVoicemailAvailable() {
-        try {
-            return getTelephonyManager().getVoiceMailNumber() != null;
-        } catch (SecurityException se) {
-            // Possibly no READ_PHONE_STATE privilege.
-            Log.w(TAG, "SecurityException is thrown. Maybe privilege isn't sufficient.");
+        boolean promptEnabled = Settings.Global.getInt(getActivity().getContentResolver(),
+                Settings.Global.MULTI_SIM_VOICE_PROMPT, 0) == 1;
+        Log.d(TAG, "prompt enabled :  "+ promptEnabled);
+
+        if (promptEnabled) {
+            return hasVMNumber();
+        } else {
+            try {
+                if (MSimTelephonyManager.getDefault().isMultiSimEnabled()) {
+                    mSubscription = MSimTelephonyManager.getDefault().
+                            getPreferredVoiceSubscription();
+                    Log.d(TAG, "Voicemail preferred sub id = "+ mSubscription);
+                    return (MSimTelephonyManager.getDefault().
+                            getVoiceMailNumber(mSubscription) != null);
+                } else {
+                    return getTelephonyManager().getVoiceMailNumber() != null;
+                }
+            } catch (SecurityException se) {
+                // Possibly no READ_PHONE_STATE privilege.
+                Log.e(TAG, "SecurityException is thrown. Maybe privilege isn't sufficient.");
+            }
         }
         return false;
     }
 
+    private boolean hasVMNumber() {
+        boolean hasVMNum = false;
+        int phoneCount = MSimTelephonyManager.getDefault().getPhoneCount();
+
+        for (int i = 0; i < phoneCount; i++) {
+            try {
+                hasVMNum = MSimTelephonyManager.getDefault().getVoiceMailNumber(i) != null;
+            } catch (SecurityException se) {
+                // Possibly no READ_PHONE_STATE privilege.
+                Log.e(TAG, "hasVMNumber: SecurityException, Maybe privilege isn't sufficient.");
+            }
+            if (hasVMNum) {
+                break;
+            }
+        }
+        return hasVMNum;
+    }
+
     /**
      * Returns true of the newDigit parameter can be added at the current selection
      * point, otherwise returns false.
@@ -1721,6 +1761,7 @@ public class DialpadFragment extends Fragment
     private Intent newFlashIntent() {
         final Intent intent = CallUtil.getCallIntent(EMPTY_NUMBER);
         intent.putExtra(EXTRA_SEND_EMPTY_FLASH, true);
+        intent.putExtra(SUBSCRIPTION_KEY, mSubscription);
         return intent;
     }