scroll up when posting on profile fragment

closes sk22#546

mastodon/src/main/java/org/joinmastodon/android/fragments/AccountTimelineFragment.java

@@ -20,6 +20,7 @@ import org.parceler.Parcels;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 import me.grishka.appkit.api.SimpleCallback;
@@ -95,10 +96,11 @@ public class AccountTimelineFragment extends StatusListFragment{
 			if(ev.status.inReplyToAccountId!=null && !ev.status.inReplyToAccountId.equals(AccountSessionManager.getInstance().getAccount(accountID).self.id))
 				return;
 		}else if(filter==GetAccountStatuses.Filter.MEDIA){
-			if(ev.status.mediaAttachments.isEmpty())
+			if(Optional.ofNullable(ev.status.mediaAttachments).map(List::isEmpty).orElse(true))
 				return;
 		}
 		prependItems(Collections.singletonList(ev.status), true);
+		if (isOnTop()) scrollToTop();
 	}
 
 	protected void onStatusUnpinned(StatusUnpinnedEvent ev){

mastodon/src/main/java/org/joinmastodon/android/fragments/BaseStatusListFragment.java

@@ -71,7 +71,7 @@ import me.grishka.appkit.utils.BindableViewHolder;
 import me.grishka.appkit.utils.V;
 import me.grishka.appkit.views.UsableRecyclerView;
 
-public abstract class BaseStatusListFragment<T extends DisplayItemsParent> extends RecyclerFragment<T> implements PhotoViewerHost, ScrollableToTop, HasFab, ProvidesAssistContent.ProvidesWebUri {
+public abstract class BaseStatusListFragment<T extends DisplayItemsParent> extends RecyclerFragment<T> implements PhotoViewerHost, ScrollableToTop, IsOnTop, HasFab, ProvidesAssistContent.ProvidesWebUri {
 	protected ArrayList<StatusDisplayItem> displayItems=new ArrayList<>();
 	protected DisplayItemsAdapter adapter;
 	protected String accountID;
@@ -680,6 +680,11 @@ public abstract class BaseStatusListFragment<T extends DisplayItemsParent> exten
 		smoothScrollRecyclerViewToTop(list);
 	}
 
+	@Override
+	public boolean isOnTop() {
+		return isRecyclerViewOnTop(list);
+	}
+
 	protected int getListWidthForMediaLayout(){
 		return list.getWidth();
 	}

mastodon/src/main/java/org/joinmastodon/android/fragments/ProfileFragment.java

@@ -58,7 +58,6 @@ import org.joinmastodon.android.fragments.report.ReportReasonChoiceFragment;
 import org.joinmastodon.android.model.Account;
 import org.joinmastodon.android.model.AccountField;
 import org.joinmastodon.android.model.Attachment;
-import org.joinmastodon.android.model.Instance;
 import org.joinmastodon.android.model.Relationship;
 import org.joinmastodon.android.ui.BetterItemAnimator;
 import org.joinmastodon.android.ui.SimpleViewHolder;

mastodon/src/main/java/org/joinmastodon/android/fragments/discover/DiscoverPostsFragment.java

@@ -5,7 +5,6 @@ import android.os.Bundle;
 import android.view.View;
 
 import org.joinmastodon.android.api.requests.trends.GetTrendingStatuses;
-import org.joinmastodon.android.fragments.IsOnTop;
 import org.joinmastodon.android.fragments.StatusListFragment;
 import org.joinmastodon.android.model.Filter;
 import org.joinmastodon.android.model.Status;
@@ -17,7 +16,7 @@ import java.util.stream.Collectors;
 
 import me.grishka.appkit.api.SimpleCallback;
 
-public class DiscoverPostsFragment extends StatusListFragment implements IsOnTop {
+public class DiscoverPostsFragment extends StatusListFragment {
 	private DiscoverInfoBannerHelper bannerHelper=new DiscoverInfoBannerHelper(DiscoverInfoBannerHelper.BannerType.TRENDING_POSTS);
 
 	@Override
@@ -39,11 +38,6 @@ public class DiscoverPostsFragment extends StatusListFragment implements IsOnTop
 		bannerHelper.maybeAddBanner(contentWrap);
 	}
 
-	@Override
-	public boolean isOnTop() {
-		return isRecyclerViewOnTop(list);
-	}
-
 	@Override
 	protected Filter.FilterContext getFilterContext() {
 		return Filter.FilterContext.PUBLIC;

mastodon/src/main/java/org/joinmastodon/android/fragments/discover/SearchFragment.java

@@ -12,7 +12,6 @@ import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.requests.search.GetSearchResults;
 import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.fragments.BaseStatusListFragment;
-import org.joinmastodon.android.fragments.IsOnTop;
 import org.joinmastodon.android.fragments.ProfileFragment;
 import org.joinmastodon.android.fragments.ThreadFragment;
 import org.joinmastodon.android.model.Account;
@@ -43,7 +42,7 @@ import me.grishka.appkit.api.ErrorResponse;
 import me.grishka.appkit.utils.MergeRecyclerAdapter;
 import me.grishka.appkit.utils.V;
 
-public class SearchFragment extends BaseStatusListFragment<SearchResult> implements IsOnTop {
+public class SearchFragment extends BaseStatusListFragment<SearchResult> {
 	private String currentQuery;
 	private List<StatusDisplayItem> prevDisplayItems;
 	private EnumSet<SearchResult.Type> currentFilter=EnumSet.allOf(SearchResult.Type.class);
@@ -312,11 +311,6 @@ public class SearchFragment extends BaseStatusListFragment<SearchResult> impleme
 		}
 	}
 
-	@Override
-	public boolean isOnTop() {
-		return isRecyclerViewOnTop(list);
-	}
-
 	@Override
 	public Uri getWebUri(Uri.Builder base) {
 		Uri.Builder searchUri = base.path("/search");