Merge "Fix NPE caused by not getting a Root DocumentInfo back from task." into arc-apps (3cc69551) · Commits · e / os / android_packages_apps_DocumentsUI

src/com/android/documentsui/sidebar/RootsFragment.java

+16 −4

Original line number	Diff line number	Diff line
		@@ -51,6 +51,7 @@ import com.android.documentsui.ActionHandler;
		import com.android.documentsui.BaseActivity;
		import com.android.documentsui.DocumentsApplication;
		import com.android.documentsui.DragAndDropHelper;
		import com.android.documentsui.DragShadowBuilder;
		import com.android.documentsui.Injector;
		import com.android.documentsui.Injector.Injected;
		import com.android.documentsui.ItemDragListener;
		@@ -378,13 +379,24 @@ public class RootsFragment extends Fragment implements ItemDragListener.DragHost

		final RootItem rootItem = (RootItem) item;
		getRootDocument(rootItem, (DocumentInfo doc) -> {
		rootItem.docInfo = doc;
		getBaseActivity().getShadowBuilder().setAppearDroppable(
		doc.isCreateSupported() && DragAndDropHelper.canCopyTo(localState, doc));
		v.updateDragShadow(getBaseActivity().getShadowBuilder());
		updateDropShadow(v, localState, rootItem, doc);
		});
		}

		private void updateDropShadow(
		View v, Object localState, RootItem rootItem, DocumentInfo rootDoc) {
		final DragShadowBuilder shadowBuilder = getBaseActivity().getShadowBuilder();
		if (rootDoc == null) {
		Log.e(TAG, "Root DocumentInfo is null. Defaulting to appear not droppable.");
		shadowBuilder.setAppearDroppable(false);
		} else {
		rootItem.docInfo = rootDoc;
		shadowBuilder.setAppearDroppable(rootDoc.isCreateSupported()
		&& DragAndDropHelper.canCopyTo(localState, rootDoc));
		}
		v.updateDragShadow(shadowBuilder);
		}

		// In RootsFragment we always reset the drag shadow as it exits a RootItemView.
		@Override
		public void onDragExited(View v, Object localState) {