Merge "Update display logic for no shared data." into rvc-dev

src/com/android/settings/development/storage/BlobInfoListView.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.development.storage;
 
+import android.app.ActionBar;
 import android.app.ListActivity;
 import android.app.blob.BlobInfo;
 import android.app.blob.BlobStoreManager;
@@ -30,7 +31,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.appcompat.app.AlertDialog;
@@ -41,7 +41,6 @@ import com.android.settings.R;
 import java.io.IOException;
 import java.util.List;
 
-// TODO: have this class extend DashboardFragment for consistency
 public class BlobInfoListView extends ListActivity {
     private static final String TAG = "BlobInfoListView";
 
@@ -60,6 +59,17 @@ public class BlobInfoListView extends ListActivity {
 
         mAdapter = new BlobListAdapter(this);
         setListAdapter(mAdapter);
+
+        final ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onNavigateUp() {
+        finish();
+        return true;
     }
 
     @Override
@@ -91,14 +101,6 @@ public class BlobInfoListView extends ListActivity {
         }
     }
 
-    private View getEmptyView() {
-        final View emptyView = mInflater.inflate(R.layout.shared_data_empty_list_view,
-                (ViewGroup) getListView().getRootView());
-        final TextView emptyText = emptyView.findViewById(R.id.empty_view_text);
-        emptyText.setText(R.string.shared_data_no_blobs_text);
-        return emptyView;
-    }
-
     private void showDeleteBlobDialog(BlobInfo blob) {
         final AlertDialog dialog = new AlertDialog.Builder(mContext)
                 .setMessage(R.string.shared_data_no_accessors_dialog_text)
@@ -139,7 +141,7 @@ public class BlobInfoListView extends ListActivity {
         void updateList(List<BlobInfo> blobs) {
             clear();
             if (blobs.isEmpty()) {
-                getListView().setEmptyView(getEmptyView());
+                finish();
             } else {
                 addAll(blobs);
             }

src/com/android/settings/development/storage/LeaseInfoListView.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.development.storage;
 
+import android.app.ActionBar;
 import android.app.ListActivity;
 import android.app.blob.BlobInfo;
 import android.app.blob.BlobStoreManager;
@@ -44,7 +45,6 @@ import com.android.settings.R;
 import java.io.IOException;
 import java.util.List;
 
-// TODO: have this class extend DashboardFragment for consistency
 public class LeaseInfoListView extends ListActivity {
     private static final String TAG = "LeaseInfoListView";
 
@@ -74,6 +74,17 @@ public class LeaseInfoListView extends ListActivity {
         getListView().addHeaderView(getHeaderView());
         getListView().addFooterView(getFooterView());
         getListView().setClickable(false);
+
+        final ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onNavigateUp() {
+        finish();
+        return true;
     }
 
     private LinearLayout getHeaderView() {

src/com/android/settings/development/storage/SharedDataPreferenceController.java

@@ -18,13 +18,20 @@ package com.android.settings.development.storage;
 
 import android.app.blob.BlobStoreManager;
 import android.content.Context;
+import android.os.UserHandle;
+import android.util.Log;
 
 import androidx.preference.Preference;
 
+import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
 
-public class SharedDataPreferenceController extends DeveloperOptionsPreferenceController {
+import java.io.IOException;
 
+public class SharedDataPreferenceController extends DeveloperOptionsPreferenceController
+        implements PreferenceControllerMixin {
+    private static final String TAG = "SharedDataPrefCtrl";
     private static final String SHARED_DATA = "shared_data";
 
     private BlobStoreManager mBlobStoreManager;
@@ -39,14 +46,18 @@ public class SharedDataPreferenceController extends DeveloperOptionsPreferenceCo
         return SHARED_DATA;
     }
 
-    @Override
-    public boolean isAvailable() {
-        return mBlobStoreManager != null;
-    }
-
     @Override
     public void updateState(Preference preference) {
-        preference.setEnabled(mBlobStoreManager != null);
-        // TODO: update summary to indicate why this preference isn't available
+        try {
+            final boolean showPref = mBlobStoreManager != null
+                    && !mBlobStoreManager.queryBlobsForUser(UserHandle.CURRENT).isEmpty();
+            preference.setEnabled(showPref);
+            preference.setSummary(showPref ? R.string.shared_data_summary
+                                           : R.string.shared_data_no_blobs_text);
+        } catch (IOException e) {
+            Log.e(TAG, "Unable to fetch blobs for current user: " + e.getMessage());
+            preference.setEnabled(false);
+            preference.setSummary(R.string.shared_data_no_blobs_text);
+        }
     }
 }