Telephony(MSIM): Select preferred primary sub.

Add UI to select preferred primary sub.
It is used when two SIM cards inserted have same
priority as per policy.

Change-Id: I5726fe9f4df03e680dc2406854d08da77297444d

4 files changed, 72 insertions, 5 deletions

diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index f3ff3af..9b5ccbe 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -2869,4 +2869,6 @@
     <string name="write_settings_description" msgid="6868293938839954623">"此权限允许应用修改系统设置。"</string>
     <string name="write_settings_on" msgid="8230580416068832239">"允许"</string>
     <string name="write_settings_off" msgid="5156104383386336233">"不允许"</string>
+
+    <string name="primary_sub_select_title">默认4G/3G SIM卡</string>
 </resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index b830a66..adaac4b 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -6980,4 +6980,6 @@
     <string name="sub_activate_failed">Activation failed.</string>
     <string name="sub_deactivate_success">Successfully Deactivated.</string>
     <string name="sub_deactivate_failed">Deactivation failed.</string>
+
+    <string name="primary_sub_select_title">Default 4G/3G Subscription</string>
 </resources>
diff --git a/res/xml/sim_settings.xml b/res/xml/sim_settings.xml
index 273a9b8..620cbcf 100644
--- a/res/xml/sim_settings.xml
+++ b/res/xml/sim_settings.xml
@@ -25,6 +25,13 @@
             android:key="sim_activities"
             android:title="@string/sim_pref_divider" >
 
+        <Preference
+            android:key="select_primary_sub"
+            android:persistent="false"
+            android:title="@string/primary_sub_select_title" >
+            <intent android:action="codeaurora.intent.action.ACTION_LTE_CONFIGURE" />
+        </Preference>
+
         <Preference android:key="sim_cellular_data"
             android:title="@string/cellular_data_title" />
 
diff --git a/src/com/android/settings/sim/SimSettings.java b/src/com/android/settings/sim/SimSettings.java
index b8f34aa..8639f6c 100644
--- a/src/com/android/settings/sim/SimSettings.java
+++ b/src/com/android/settings/sim/SimSettings.java
@@ -31,6 +31,7 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.SystemProperties;
 import android.preference.Preference;
 import android.preference.PreferenceScreen;
 import android.preference.PreferenceCategory;
@@ -58,7 +59,6 @@ import com.android.settings.Utils;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.search.Indexable;
 import com.android.settings.R;
-import android.os.SystemProperties;
 import com.android.internal.telephony.IExtTelephony;
 import com.android.internal.telephony.TelephonyProperties;
 
@@ -82,6 +82,8 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
     private static final String KEY_CALLS = "sim_calls";
     private static final String KEY_SMS = "sim_sms";
     public static final String EXTRA_SLOT_ID = "slot_id";
+    private static final String SIM_ACTIVITIES_CATEGORY = "sim_activities";
+    private static final String KEY_PRIMARY_SUB_SELECT = "select_primary_sub";
 
     /**
      * By UX design we use only one Subscription Information(SubInfo) record per SIM slot.
@@ -102,10 +104,17 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
     private boolean needUpdate = false;
     private int mPhoneCount = TelephonyManager.getDefault().getPhoneCount();
     private int[] mUiccProvisionStatus = new int[mPhoneCount];
+    private Preference mPrimarySubSelect = null;
 
-    static final String ACTION_UICC_MANUAL_PROVISION_STATUS_CHANGED =
+    private static final String ACTION_UICC_MANUAL_PROVISION_STATUS_CHANGED =
             "org.codeaurora.intent.action.ACTION_UICC_MANUAL_PROVISION_STATUS_CHANGED";
-    static final String EXTRA_NEW_PROVISION_STATE = "newProvisionState";
+    private static final String EXTRA_NEW_PROVISION_STATE = "newProvisionState";
+    private static final String CONFIG_LTE_SUB_SELECT_MODE = "config_lte_sub_select_mode";
+    private static final String CONFIG_PRIMARY_SUB_SETABLE = "config_primary_sub_setable";
+    private static final String CONFIG_CURRENT_PRIMARY_SUB = "config_current_primary_sub";
+    // If this config set to '1' DDS option would be greyed out on UI.
+    // For more info pls refere framework code.
+    private static final String CONFIG_DISABLE_DDS_PREFERENCE = "config_disable_dds_preference";
 
     public SimSettings() {
         super(DISALLOW_CONFIG_SIM);
@@ -126,6 +135,7 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
                 (TelephonyManager) getActivity().getSystemService(Context.TELEPHONY_SERVICE);
         addPreferencesFromResource(R.xml.sim_settings);
 
+        mPrimarySubSelect = (Preference) findPreference(KEY_PRIMARY_SUB_SELECT);
         mNumSlots = tm.getSimCount();
         mSimCards = (PreferenceCategory)findPreference(SIM_CARD_CATEGORY);
         mAvailableSubInfos = new ArrayList<SubscriptionInfo>(mNumSlots);
@@ -223,7 +233,7 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
         } else if (sir == null) {
             simPref.setSummary(R.string.sim_selection_required_pref);
         }
-        simPref.setEnabled(mSelectableSubInfos.size() > 1);
+        simPref.setEnabled(mSelectableSubInfos.size() > 1 && !disableDds());
     }
 
     private void updateCallValues() {
@@ -248,6 +258,7 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
         final TelephonyManager tm =
                 (TelephonyManager) getActivity().getSystemService(Context.TELEPHONY_SERVICE);
         tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
+        initLTEPreference();
         updateSubscriptions();
     }
 
@@ -280,7 +291,7 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
                 final boolean ecbMode = SystemProperties.getBoolean(
                         TelephonyProperties.PROPERTY_INECM_MODE, false);
                 pref.setEnabled((state == TelephonyManager.CALL_STATE_IDLE) && !ecbMode
-                        && (mSelectableSubInfos.size() > 1));
+                        && (mSelectableSubInfos.size() > 1) && !disableDds());
             }
         }
     };
@@ -305,6 +316,8 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
         } else if (findPreference(KEY_SMS) == preference) {
             intent.putExtra(SimDialogActivity.DIALOG_TYPE_KEY, SimDialogActivity.SMS_PICK);
             context.startActivity(intent);
+        } else if (preference == mPrimarySubSelect) {
+            startActivity(mPrimarySubSelect.getIntent());
         }
 
         return true;
@@ -887,4 +900,47 @@ public class SimSettings extends RestrictedSettingsFragment implements Indexable
             }
         }
     };
+
+    // When primarycard feature enabled this provides menu option for user
+    // to view/select current primary slot.
+    private void initLTEPreference() {
+        boolean isPrimarySubFeatureEnable =
+                SystemProperties.getBoolean("persist.radio.primarycard", false);
+        boolean primarySetable = Settings.Global.getInt(mContext.getContentResolver(),
+                 CONFIG_PRIMARY_SUB_SETABLE, 0) == 1;
+
+        log("isPrimarySubFeatureEnable :" + isPrimarySubFeatureEnable +
+                " primarySetable :" + primarySetable);
+
+        if (!isPrimarySubFeatureEnable || !primarySetable) {
+            final PreferenceCategory simActivities =
+                    (PreferenceCategory) findPreference(SIM_ACTIVITIES_CATEGORY);
+            simActivities.removePreference(mPrimarySubSelect);
+            return;
+        }
+        int currentPrimarySlot = Settings.Global.getInt(mContext.getContentResolver(),
+                 CONFIG_CURRENT_PRIMARY_SUB, SubscriptionManager.INVALID_SIM_SLOT_INDEX);
+        boolean isManualMode = Settings.Global.getInt(mContext.getContentResolver(),
+                 CONFIG_LTE_SUB_SELECT_MODE, 1) == 0;
+
+        log("init LTE primary slot : " + currentPrimarySlot + " isManualMode :" + isManualMode);
+
+        if (SubscriptionManager.isValidSlotId(currentPrimarySlot)) {
+            final SubscriptionInfo subInfo = mSubscriptionManager
+                    .getActiveSubscriptionInfoForSimSlotIndex(currentPrimarySlot);
+            CharSequence lteSummary = (subInfo == null ) ? null : subInfo.getDisplayName();
+            mPrimarySubSelect.setSummary(lteSummary);
+        } else {
+            mPrimarySubSelect.setSummary("");
+        }
+        mPrimarySubSelect.setEnabled(isManualMode);
+    }
+
+    private boolean disableDds() {
+        boolean disableDds = Settings.Global.getInt(mContext.getContentResolver(),
+                CONFIG_DISABLE_DDS_PREFERENCE, 0) == 1;
+
+        log(" config disable dds =  " + disableDds);
+        return disableDds;
+    }
 }