Settings: Set root access options appropriately

It is possible to be running a user build with a debuggable boot image.
In this case, "su" will not be available.  So only show none/adb.

Jira: BACON-4461

Change-Id: Iaa7df8311b9ea81eabb1566ba6f9159fdc9fab34

1 files changed, 22 insertions, 0 deletions

diff --git a/src/com/android/settings/DevelopmentSettings.java b/src/com/android/settings/DevelopmentSettings.java
index cfdf921ff..5ae3b1b74 100644
--- a/src/com/android/settings/DevelopmentSettings.java
+++ b/src/com/android/settings/DevelopmentSettings.java
@@ -85,6 +85,7 @@ import com.android.settings.search.Indexable;
 import com.android.settings.widget.SwitchBar;
 import cyanogenmod.providers.CMSettings;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
@@ -210,6 +211,9 @@ public class DevelopmentSettings extends SettingsPreferenceFragment
     private static final int[] MOCK_LOCATION_APP_OPS = new int[] {AppOpsManager.OP_MOCK_LOCATION};
 
     private static final String MULTI_WINDOW_SYSTEM_PROPERTY = "persist.sys.debug.multi_window";
+
+    private static final String SUPERUSER_BINARY_PATH = "/system/xbin/su";
+
     private IWindowManager mWindowManager;
     private IBackupManager mBackupManager;
     private DevicePolicyManager mDpm;
@@ -474,6 +478,13 @@ public class DevelopmentSettings extends SettingsPreferenceFragment
         mRootAccess = (ListPreference) findPreference(ROOT_ACCESS_KEY);
         mRootAccess.setOnPreferenceChangeListener(this);
         if (!removeRootOptionsIfRequired()) {
+            if (isRootForAppsAvailable()) {
+                mRootAccess.setEntries(R.array.root_access_entries);
+                mRootAccess.setEntryValues(R.array.root_access_values);
+            } else {
+                mRootAccess.setEntries(R.array.root_access_entries_adb);
+                mRootAccess.setEntryValues(R.array.root_access_values_adb);
+            }
             mAllPrefs.add(mRootAccess);
         }
 
@@ -832,6 +843,17 @@ public class DevelopmentSettings extends SettingsPreferenceFragment
                 .getStringArray(R.array.root_access_entries)[Integer.valueOf(value)]);
     }
 
+    private boolean isRootForAppsAvailable() {
+        boolean exists = false;
+        try {
+            File f = new File(SUPERUSER_BINARY_PATH);
+            exists = f.exists();
+        } catch (SecurityException e) {
+            // Ignore
+        }
+        return exists;
+    }
+
     public static boolean isRootForAppsEnabled() {
         int value = SystemProperties.getInt(ROOT_ACCESS_PROPERTY, 0);
         boolean daemonState =