From 14723e314c98182bc9b7a1eaa06bdc35dc51637b Mon Sep 17 00:00:00 2001
From: "manabu, shimoda" <manabu.x.shimoda@sonymobile.com>
Date: Fri, 6 Oct 2017 14:39:01 +0900
Subject: [PATCH] Customize the default value of Enhanced 4G LTE mode

To control the default value by carrier configuration,
 - Add a carrier option to control default Enhanced 4G LTE mode enabled.
 - Remove initializing Settings.Global.ENHANCED_4G_MODE_ENABLED.

Test: manual - Checked that the "Enhanced 4G LTE mode" can be controlled
by carrier config.
Bug: 67725875

Change-Id: Ic714abcae5c388cc12e6c4b1f45e2abb07febf54
---
 core/java/android/provider/Settings.java      |  3 ++-
 .../providers/settings/DatabaseHelper.java    | 21 ++++---------------
 .../telephony/CarrierConfigManager.java       |  9 ++++++++
 3 files changed, 15 insertions(+), 18 deletions(-)
 mode change 100755 => 100644 core/java/android/provider/Settings.java

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
old mode 100755
new mode 100644
index 6981ffcae72d0..d230d2d14417f
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -9946,7 +9946,8 @@ public final class Settings {
         public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
 
         /**
-         * Whether the Volte is enabled
+         * Whether the Volte is enabled. If this setting is not set then we use the Carrier Config
+         * value {@link CarrierConfigManager#KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL}.
          * <p>
          * Type: int (0 for false, 1 for true)
          * @hide
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
index 06d00be8aee8d..27d461b2b762f 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -1836,20 +1836,10 @@ class DatabaseHelper extends SQLiteOpenHelper {
         }
 
         if (upgradeVersion < 116) {
-            if (mUserHandle == UserHandle.USER_SYSTEM) {
-                db.beginTransaction();
-                SQLiteStatement stmt = null;
-                try {
-                    stmt = db.compileStatement("INSERT OR IGNORE INTO global(name,value)"
-                            + " VALUES(?,?);");
-                    loadSetting(stmt, Settings.Global.ENHANCED_4G_MODE_ENABLED,
-                            ImsConfig.FeatureValueConstants.ON);
-                    db.setTransactionSuccessful();
-                } finally {
-                    db.endTransaction();
-                    if (stmt != null) stmt.close();
-                }
-            }
+            /*
+             * To control the default value by carrier config manager, initializing
+             * ENHANCED_4G_MODE_ENABLED has been removed.
+             */
             upgradeVersion = 116;
         }
 
@@ -2633,9 +2623,6 @@ class DatabaseHelper extends SQLiteOpenHelper {
 
             loadSetting(stmt, Settings.Global.DEVICE_NAME, getDefaultDeviceName());
 
-            loadSetting(stmt, Settings.Global.ENHANCED_4G_MODE_ENABLED,
-                    ImsConfig.FeatureValueConstants.ON);
-
             /*
              * IMPORTANT: Do not add any more upgrade steps here as the global,
              * secure, and system settings are no longer stored in a database
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 686818856fbe2..a004d9dd9f6d8 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -818,6 +818,14 @@ public class CarrierConfigManager {
      */
     public static final String KEY_HIDE_ENHANCED_4G_LTE_BOOL = "hide_enhanced_4g_lte_bool";
 
+    /**
+     * Default Enhanced 4G LTE mode enabled. When this is {@code true}, Enhanced 4G LTE mode by
+     * default is on, otherwise if {@code false}, Enhanced 4G LTE mode by default is off.
+     * @hide
+     */
+    public static final String KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL =
+            "enhanced_4g_lte_on_by_default_bool";
+
     /**
      * Determine whether IMS apn can be shown.
      */
@@ -1760,6 +1768,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_DISPLAY_HD_AUDIO_PROPERTY_BOOL, true);
         sDefaults.putBoolean(KEY_EDITABLE_ENHANCED_4G_LTE_BOOL, true);
         sDefaults.putBoolean(KEY_HIDE_ENHANCED_4G_LTE_BOOL, false);
+        sDefaults.putBoolean(KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL, true);
         sDefaults.putBoolean(KEY_HIDE_IMS_APN_BOOL, false);
         sDefaults.putBoolean(KEY_HIDE_PREFERRED_NETWORK_TYPE_BOOL, false);
         sDefaults.putBoolean(KEY_ALLOW_EMERGENCY_VIDEO_CALLS_BOOL, false);