fix toggling off current permissions in review

The confirmPermissionsReview function currently only takes into account
changes to the new permissions section. Since permissions review shows
toggles for the current permissions, those should work too. It doesn't
necessarily need to show toggles for the current permissions but since
they're present the toggles should work to avoid misleading users into
thinking they've toggled off a permission that they haven't.

Change-Id: I84310a1c20981a239169069a881dbb79267d784f
diff --git a/PermissionController/src/com/android/packageinstaller/permission/ui/ReviewPermissionsActivity.java b/PermissionController/src/com/android/packageinstaller/permission/ui/ReviewPermissionsActivity.java
index 6bc251a..b6fd0c1 100644
--- a/PermissionController/src/com/android/packageinstaller/permission/ui/ReviewPermissionsActivity.java
+++ b/PermissionController/src/com/android/packageinstaller/permission/ui/ReviewPermissionsActivity.java
@@ -48,6 +48,7 @@
 import com.android.packageinstaller.permission.utils.Utils;
 import com.android.packageinstaller.permission.ui.ConfirmActionDialogFragment.OnActionConfirmedListener;
 
+import java.util.ArrayList;
 import java.util.List;
 
 public final class ReviewPermissionsActivity extends Activity
@@ -103,6 +104,7 @@
         private Button mCancelButton;
 
         private PreferenceCategory mNewPermissionsCategory;
+        private PreferenceCategory mCurrentPermissionsCategory;
 
         private boolean mHasConfirmedRevoke;
 
@@ -218,22 +220,29 @@
         }
 
         private void confirmPermissionsReview() {
-            PreferenceGroup preferenceGroup = mNewPermissionsCategory != null
-                ? mNewPermissionsCategory : getPreferenceScreen();
+            final List<PreferenceGroup> preferenceGroups = new ArrayList<PreferenceGroup>();
+            if (mNewPermissionsCategory != null) {
+                preferenceGroups.add(mNewPermissionsCategory);
+                preferenceGroups.add(mCurrentPermissionsCategory);
+            } else {
+                preferenceGroups.add(getPreferenceScreen());
+            }
 
-            final int preferenceCount = preferenceGroup.getPreferenceCount();
-            for (int i = 0; i < preferenceCount; i++) {
-                Preference preference = preferenceGroup.getPreference(i);
-                if (preference instanceof TwoStatePreference) {
-                    TwoStatePreference twoStatePreference = (TwoStatePreference) preference;
-                    String groupName = preference.getKey();
-                    AppPermissionGroup group = mAppPermissions.getPermissionGroup(groupName);
-                    if (twoStatePreference.isChecked()) {
-                        group.grantRuntimePermissions(false);
-                    } else {
-                        group.revokeRuntimePermissions(false);
+            for (PreferenceGroup preferenceGroup : preferenceGroups) {
+                final int preferenceCount = preferenceGroup.getPreferenceCount();
+                for (int i = 0; i < preferenceCount; i++) {
+                    Preference preference = preferenceGroup.getPreference(i);
+                    if (preference instanceof TwoStatePreference) {
+                        TwoStatePreference twoStatePreference = (TwoStatePreference) preference;
+                        String groupName = preference.getKey();
+                        AppPermissionGroup group = mAppPermissions.getPermissionGroup(groupName);
+                        if (twoStatePreference.isChecked()) {
+                            group.grantRuntimePermissions(false);
+                        } else {
+                            group.revokeRuntimePermissions(false);
+                        }
+                        group.resetReviewRequired();
                     }
-                    group.resetReviewRequired();
                 }
             }
         }
@@ -295,7 +304,7 @@
                 screen.removeAll();
             }
 
-            PreferenceGroup currentPermissionsCategory = null;
+            mCurrentPermissionsCategory = null;
             PreferenceGroup oldNewPermissionsCategory = mNewPermissionsCategory;
             mNewPermissionsCategory = null;
 
@@ -353,13 +362,13 @@
                         mNewPermissionsCategory.addPreference(preference);
                     }
                 } else {
-                    if (currentPermissionsCategory == null) {
-                        currentPermissionsCategory = new PreferenceCategory(activity);
-                        currentPermissionsCategory.setTitle(R.string.current_permissions_category);
-                        currentPermissionsCategory.setOrder(2);
-                        screen.addPreference(currentPermissionsCategory);
+                    if (mCurrentPermissionsCategory == null) {
+                        mCurrentPermissionsCategory = new PreferenceCategory(activity);
+                        mCurrentPermissionsCategory.setTitle(R.string.current_permissions_category);
+                        mCurrentPermissionsCategory.setOrder(2);
+                        screen.addPreference(mCurrentPermissionsCategory);
                     }
-                    currentPermissionsCategory.addPreference(preference);
+                    mCurrentPermissionsCategory.addPreference(preference);
                 }
             }
         }