Adds correct footer behaviour to account lists and unifies it with how timelines use them.

app/src/main/java/com/keylesspalace/tusky/adapter/AccountAdapter.java

@@ -21,7 +21,6 @@ import android.support.v7.widget.RecyclerView;
 import com.keylesspalace.tusky.entity.Account;
 import com.keylesspalace.tusky.interfaces.AccountActionListener;
 
-import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
@@ -29,6 +28,8 @@ import java.util.List;
 public abstract class AccountAdapter extends RecyclerView.Adapter {
     List<Account> accountList;
     AccountActionListener accountActionListener;
+    FooterViewHolder.State footerState;
+
     private String topId;
     private String bottomId;
 
@@ -36,6 +37,7 @@ public abstract class AccountAdapter extends RecyclerView.Adapter {
         super();
         accountList = new ArrayList<>();
         this.accountActionListener = accountActionListener;
+        footerState = FooterViewHolder.State.END;
     }
 
     @Override
@@ -119,6 +121,10 @@ public abstract class AccountAdapter extends RecyclerView.Adapter {
         return null;
     }
 
+    public void setFooterState(FooterViewHolder.State newFooterState) {
+        footerState = newFooterState;
+    }
+
     @Nullable
     public String getBottomId() {
         return bottomId;

app/src/main/java/com/keylesspalace/tusky/adapter/BlocksAdapter.java

@@ -59,6 +59,9 @@ public class BlocksAdapter extends AccountAdapter {
             BlockedUserViewHolder holder = (BlockedUserViewHolder) viewHolder;
             holder.setupWithAccount(accountList.get(position));
             holder.setupActionListener(accountActionListener, true);
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 

app/src/main/java/com/keylesspalace/tusky/adapter/FollowAdapter.java

@@ -55,6 +55,9 @@ public class FollowAdapter extends AccountAdapter {
             AccountViewHolder holder = (AccountViewHolder) viewHolder;
             holder.setupWithAccount(accountList.get(position));
             holder.setupActionListener(accountActionListener);
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 

app/src/main/java/com/keylesspalace/tusky/adapter/FollowRequestsAdapter.java

@@ -59,6 +59,9 @@ public class FollowRequestsAdapter extends AccountAdapter {
             FollowRequestViewHolder holder = (FollowRequestViewHolder) viewHolder;
             holder.setupWithAccount(accountList.get(position));
             holder.setupActionListener(accountActionListener);
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 

app/src/main/java/com/keylesspalace/tusky/adapter/FooterViewHolder.java

@@ -15,18 +15,59 @@
 
 package com.keylesspalace.tusky.adapter;
 
+import android.graphics.drawable.Drawable;
+import android.support.v7.content.res.AppCompatResources;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
 import android.widget.ProgressBar;
+import android.widget.TextView;
 
 import com.keylesspalace.tusky.R;
 
-class FooterViewHolder extends RecyclerView.ViewHolder {
+public class FooterViewHolder extends RecyclerView.ViewHolder {
+    public enum State {
+        EMPTY,
+        END,
+        LOADING
+    }
+
+    private View container;
+    private ProgressBar progressBar;
+    private TextView endMessage;
+
     FooterViewHolder(View itemView) {
         super(itemView);
-        ProgressBar progressBar = (ProgressBar) itemView.findViewById(R.id.footer_progress_bar);
+        container = itemView.findViewById(R.id.footer_container);
-        if (progressBar != null) {
+        progressBar = (ProgressBar) itemView.findViewById(R.id.footer_progress_bar);
-            progressBar.setIndeterminate(true);
+        endMessage = (TextView) itemView.findViewById(R.id.footer_end_message);
+        Drawable top = AppCompatResources.getDrawable(itemView.getContext(),
+                R.drawable.elephant_friend);
+        if (top != null) {
+            top.setBounds(0, 0, top.getIntrinsicWidth() / 2, top.getIntrinsicHeight() / 2);
+        }
+        endMessage.setCompoundDrawables(null, top, null, null);
+    }
+
+    public void setState(State state) {
+        switch (state) {
+            case LOADING: {
+                container.setVisibility(View.VISIBLE);
+                progressBar.setVisibility(View.VISIBLE);
+                endMessage.setVisibility(View.GONE);
+                break;
+            }
+            case END: {
+                container.setVisibility(View.GONE);
+                progressBar.setVisibility(View.GONE);
+                endMessage.setVisibility(View.GONE);
+                break;
+            }
+            case EMPTY: {
+                container.setVisibility(View.VISIBLE);
+                progressBar.setVisibility(View.GONE);
+                endMessage.setVisibility(View.VISIBLE);
+                break;
+            }
         }
     }
 }

app/src/main/java/com/keylesspalace/tusky/adapter/MutesAdapter.java

@@ -44,6 +44,9 @@ public class MutesAdapter extends AccountAdapter {
             MutedUserViewHolder holder = (MutedUserViewHolder) viewHolder;
             holder.setupWithAccount(accountList.get(position));
             holder.setupActionListener(accountActionListener, true, position);
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 

app/src/main/java/com/keylesspalace/tusky/adapter/NotificationsAdapter.java

@@ -46,16 +46,10 @@ public class NotificationsAdapter extends RecyclerView.Adapter implements Adapte
     private static final int VIEW_TYPE_STATUS_NOTIFICATION = 2;
     private static final int VIEW_TYPE_FOLLOW = 3;
 
-    public enum FooterState {
-        EMPTY,
-        END,
-        LOADING
-    }
-
     private List<Notification> notifications;
     private StatusActionListener statusListener;
     private NotificationActionListener notificationActionListener;
-    private FooterState footerState = FooterState.END;
+    private FooterViewHolder.State footerState;
     private boolean mediaPreviewEnabled;
     private String bottomId;
     private String topId;
@@ -66,6 +60,7 @@ public class NotificationsAdapter extends RecyclerView.Adapter implements Adapte
         notifications = new ArrayList<>();
         this.statusListener = statusListener;
         this.notificationActionListener = notificationActionListener;
+        footerState = FooterViewHolder.State.END;
         mediaPreviewEnabled = true;
     }
 
@@ -79,24 +74,8 @@ public class NotificationsAdapter extends RecyclerView.Adapter implements Adapte
                 return new StatusViewHolder(view);
             }
             case VIEW_TYPE_FOOTER: {
-                View view;
+                View view = LayoutInflater.from(parent.getContext())
-                switch (footerState) {
+                        .inflate(R.layout.item_footer, parent, false);
-                    default:
-                    case LOADING:
-                        view = LayoutInflater.from(parent.getContext())
-                                .inflate(R.layout.item_footer, parent, false);
-                        break;
-                    case END: {
-                        view = LayoutInflater.from(parent.getContext())
-                                .inflate(R.layout.item_footer_end, parent, false);
-                        break;
-                    }
-                    case EMPTY: {
-                        view = LayoutInflater.from(parent.getContext())
-                                .inflate(R.layout.item_footer_empty, parent, false);
-                        break;
-                    }
-                }
                 return new FooterViewHolder(view);
             }
             case VIEW_TYPE_STATUS_NOTIFICATION: {
@@ -140,6 +119,9 @@ public class NotificationsAdapter extends RecyclerView.Adapter implements Adapte
                     break;
                 }
             }
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 
@@ -252,12 +234,8 @@ public class NotificationsAdapter extends RecyclerView.Adapter implements Adapte
         notifyDataSetChanged();
     }
 
-    public void setFooterState(FooterState newFooterState) {
+    public void setFooterState(FooterViewHolder.State newFooterState) {
-        FooterState oldValue = footerState;
         footerState = newFooterState;
-        if (footerState != oldValue) {
-            notifyItemChanged(notifications.size());
-        }
     }
 
     @Nullable

app/src/main/java/com/keylesspalace/tusky/adapter/TimelineAdapter.java

@@ -34,15 +34,9 @@ public class TimelineAdapter extends RecyclerView.Adapter implements AdapterItem
     private static final int VIEW_TYPE_STATUS = 0;
     private static final int VIEW_TYPE_FOOTER = 1;
 
-    public enum FooterState {
-        EMPTY,
-        END,
-        LOADING
-    }
-
     private List<Status> statuses;
     private StatusActionListener statusListener;
-    private FooterState footerState = FooterState.END;
+    private FooterViewHolder.State footerState;
     private boolean mediaPreviewEnabled;
     private String topId;
     private String bottomId;
@@ -51,6 +45,7 @@ public class TimelineAdapter extends RecyclerView.Adapter implements AdapterItem
         super();
         statuses = new ArrayList<>();
         this.statusListener = statusListener;
+        footerState = FooterViewHolder.State.END;
         mediaPreviewEnabled = true;
     }
 
@@ -64,24 +59,8 @@ public class TimelineAdapter extends RecyclerView.Adapter implements AdapterItem
                 return new StatusViewHolder(view);
             }
             case VIEW_TYPE_FOOTER: {
-                View view;
+                View view = LayoutInflater.from(viewGroup.getContext())
-                switch (footerState) {
+                        .inflate(R.layout.item_footer, viewGroup, false);
-                    default:
-                    case LOADING:
-                        view = LayoutInflater.from(viewGroup.getContext())
-                                .inflate(R.layout.item_footer, viewGroup, false);
-                        break;
-                    case END: {
-                        view = LayoutInflater.from(viewGroup.getContext())
-                                .inflate(R.layout.item_footer_end, viewGroup, false);
-                        break;
-                    }
-                    case EMPTY: {
-                        view = LayoutInflater.from(viewGroup.getContext())
-                                .inflate(R.layout.item_footer_empty, viewGroup, false);
-                        break;
-                    }
-                }
                 return new FooterViewHolder(view);
             }
         }
@@ -93,6 +72,9 @@ public class TimelineAdapter extends RecyclerView.Adapter implements AdapterItem
             StatusViewHolder holder = (StatusViewHolder) viewHolder;
             Status status = statuses.get(position);
             holder.setupWithStatus(status, statusListener, mediaPreviewEnabled);
+        } else {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(footerState);
         }
     }
 
@@ -192,12 +174,8 @@ public class TimelineAdapter extends RecyclerView.Adapter implements AdapterItem
         return null;
     }
 
-    public void setFooterState(FooterState newFooterState) {
+    public void setFooterState(FooterViewHolder.State newFooterState) {
-        FooterState oldValue = footerState;
         footerState = newFooterState;
-        if (footerState != oldValue) {
-            notifyItemChanged(statuses.size());
-        }
     }
 
     public void setMediaPreviewEnabled(boolean enabled) {

app/src/main/java/com/keylesspalace/tusky/fragment/AccountListFragment.java

@@ -36,6 +36,7 @@ import com.keylesspalace.tusky.adapter.AccountAdapter;
 import com.keylesspalace.tusky.adapter.BlocksAdapter;
 import com.keylesspalace.tusky.adapter.FollowAdapter;
 import com.keylesspalace.tusky.adapter.FollowRequestsAdapter;
+import com.keylesspalace.tusky.adapter.FooterViewHolder;
 import com.keylesspalace.tusky.adapter.MutesAdapter;
 import com.keylesspalace.tusky.BaseActivity;
 import com.keylesspalace.tusky.entity.Account;
@@ -358,7 +359,12 @@ public class AccountListFragment extends BaseFragment implements AccountActionLi
     }
 
     private void onRespondToFollowRequestFailure(boolean accept, String accountId) {
-        String verb = (accept) ? "accept" : "reject";
+        String verb;
+        if (accept) {
+            verb = "accept";
+        } else {
+            verb = "reject";
+        }
         String message = String.format("Failed to %s account id %s.", verb, accountId);
         Log.e(TAG, message);
     }
@@ -399,6 +405,11 @@ public class AccountListFragment extends BaseFragment implements AccountActionLi
             bottomFetches++;
             return;
         }
+
+        if (fromId != null || adapter.getItemCount() <= 1) {
+            setFooterState(FooterViewHolder.State.LOADING);
+        }
+
         Callback<List<Account>> cb = new Callback<List<Account>>() {
             @Override
             public void onResponse(Call<List<Account>> call, Response<List<Account>> response) {
@@ -456,6 +467,11 @@ public class AccountListFragment extends BaseFragment implements AccountActionLi
             }
         }
         fulfillAnyQueuedFetches(fetchEnd);
+        if (accounts.size() == 0 && adapter.getItemCount() == 1) {
+            setFooterState(FooterViewHolder.State.EMPTY);
+        } else {
+            setFooterState(FooterViewHolder.State.END);
+        }
     }
 
     private void onFetchAccountsFailure(Exception exception, FetchEnd fetchEnd) {
@@ -463,6 +479,20 @@ public class AccountListFragment extends BaseFragment implements AccountActionLi
         fulfillAnyQueuedFetches(fetchEnd);
     }
 
+    /* This needs to be called from the endless scroll listener, which does not allow notifying the
+     * adapter during the callback. So, this is the workaround. */
+    private void setFooterState(FooterViewHolder.State state) {
+        // Set the adapter to set its state when it's bound, if the current Footer is offscreen.
+        adapter.setFooterState(state);
+        // Check if it's onscreen, and update it directly if it is.
+        RecyclerView.ViewHolder viewHolder =
+                recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount() - 1);
+        if (viewHolder != null) {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(state);
+        }
+    }
+
     private void onRefresh() {
         fetchAccounts(null, adapter.getTopId(), FetchEnd.TOP);
     }
@@ -478,7 +508,6 @@ public class AccountListFragment extends BaseFragment implements AccountActionLi
                 bottomLoading = false;
                 if (bottomFetches > 0) {
                     bottomFetches--;
-                    Log.d(TAG, "extra fetchos " + bottomFetches);
                     onLoadMore(recyclerView);
                 }
                 break;

app/src/main/java/com/keylesspalace/tusky/fragment/NotificationsFragment.java

@@ -34,6 +34,7 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import com.keylesspalace.tusky.MainActivity;
+import com.keylesspalace.tusky.adapter.FooterViewHolder;
 import com.keylesspalace.tusky.adapter.NotificationsAdapter;
 import com.keylesspalace.tusky.R;
 import com.keylesspalace.tusky.entity.Notification;
@@ -274,7 +275,7 @@ public class NotificationsFragment extends SFragment implements
         }
 
         if (fromId != null || adapter.getItemCount() <= 1) {
-            adapter.setFooterState(NotificationsAdapter.FooterState.LOADING);
+            setFooterState(FooterViewHolder.State.LOADING);
         }
 
         Call<List<Notification>> call = mastodonApi.notifications(fromId, uptoId, null);
@@ -341,9 +342,9 @@ public class NotificationsFragment extends SFragment implements
         }
         fulfillAnyQueuedFetches(fetchEnd);
         if (notifications.size() == 0 && adapter.getItemCount() == 1) {
-            adapter.setFooterState(NotificationsAdapter.FooterState.EMPTY);
+            setFooterState(FooterViewHolder.State.EMPTY);
         } else {
-            adapter.setFooterState(NotificationsAdapter.FooterState.END);
+            setFooterState(FooterViewHolder.State.END);
         }
         swipeRefreshLayout.setRefreshing(false);
     }
@@ -354,6 +355,20 @@ public class NotificationsFragment extends SFragment implements
         fulfillAnyQueuedFetches(fetchEnd);
     }
 
+    /* This needs to be called from the endless scroll listener, which does not allow notifying the
+     * adapter during the callback. So, this is the workaround. */
+    private void setFooterState(FooterViewHolder.State state) {
+        // Set the adapter to set its state when it's bound, if the current Footer is offscreen.
+        adapter.setFooterState(state);
+        // Check if it's onscreen, and update it directly if it is.
+        RecyclerView.ViewHolder viewHolder =
+                recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount() - 1);
+        if (viewHolder != null) {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(state);
+        }
+    }
+
     private void fulfillAnyQueuedFetches(FetchEnd fetchEnd) {
         switch (fetchEnd) {
             case BOTTOM: {

app/src/main/java/com/keylesspalace/tusky/fragment/TimelineFragment.java

@@ -35,6 +35,7 @@ import android.view.ViewGroup;
 
 import com.keylesspalace.tusky.MainActivity;
 import com.keylesspalace.tusky.R;
+import com.keylesspalace.tusky.adapter.FooterViewHolder;
 import com.keylesspalace.tusky.adapter.TimelineAdapter;
 import com.keylesspalace.tusky.entity.Status;
 import com.keylesspalace.tusky.interfaces.StatusActionListener;
@@ -359,7 +360,7 @@ public class TimelineFragment extends SFragment implements
         }
 
         if (fromId != null || adapter.getItemCount() <= 1) {
-            adapter.setFooterState(TimelineAdapter.FooterState.LOADING);
+            setFooterState(FooterViewHolder.State.LOADING);
         }
 
         Callback<List<Status>> callback = new Callback<List<Status>>() {
@@ -422,9 +423,9 @@ public class TimelineFragment extends SFragment implements
         }
         fulfillAnyQueuedFetches(fetchEnd);
         if (statuses.size() == 0 && adapter.getItemCount() == 1) {
-            adapter.setFooterState(TimelineAdapter.FooterState.EMPTY);
+            setFooterState(FooterViewHolder.State.EMPTY);
         } else {
-            adapter.setFooterState(TimelineAdapter.FooterState.END);
+            setFooterState(FooterViewHolder.State.END);
         }
         swipeRefreshLayout.setRefreshing(false);
     }
@@ -435,6 +436,20 @@ public class TimelineFragment extends SFragment implements
         fulfillAnyQueuedFetches(fetchEnd);
     }
 
+    /* This needs to be called from the endless scroll listener, which does not allow notifying the
+     * adapter during the callback. So, this is the workaround. */
+    private void setFooterState(FooterViewHolder.State state) {
+        // Set the adapter to set its state when it's bound, if the current Footer is offscreen.
+        adapter.setFooterState(state);
+        // Check if it's onscreen, and update it directly if it is.
+        RecyclerView.ViewHolder viewHolder =
+                recyclerView.findViewHolderForAdapterPosition(adapter.getItemCount() - 1);
+        if (viewHolder != null) {
+            FooterViewHolder holder = (FooterViewHolder) viewHolder;
+            holder.setState(state);
+        }
+    }
+
     private void fulfillAnyQueuedFetches(FetchEnd fetchEnd) {
         switch (fetchEnd) {
             case BOTTOM: {

app/src/main/res/layout/item_footer.xml

@@ -1,20 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:gravity="center"
+    android:id="@+id/footer_container">
-    android:orientation="vertical">
 
-    <LinearLayout
+    <ProgressBar
+        android:id="@+id/footer_progress_bar"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
+        android:layout_centerInParent="true"
-        android:layout_gravity="center">
+        android:indeterminate="true" />
-        <ProgressBar
-            android:id="@+id/footer_progress_bar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content" />
-    </LinearLayout>
 
-</LinearLayout>
+    <TextView
+        android:id="@+id/footer_end_message"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/footer_empty"
+        android:textAlignment="center"
+        android:layout_centerInParent="true"
+        android:drawablePadding="16dp" />
+
+</RelativeLayout>

app/src/main/res/layout/item_footer_empty.xml

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-xmlns:android="http://schemas.android.com/apk/res/android"
-xmlns:app="http://schemas.android.com/apk/res-auto"
-android:layout_width="match_parent"
-android:layout_height="match_parent"
-android:padding="16dp"
-android:gravity="center"
-android:orientation="vertical">
-
-<ImageView
-    android:id="@+id/imageView"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    app:srcCompat="@drawable/elephant_friend" />
-
-<TextView
-    android:id="@+id/textView"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginTop="16dp"
-    android:text="@string/footer_empty"
-    android:textAlignment="center" />
-
-</LinearLayout>

app/src/main/res/layout/item_footer_end.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center"
-    android:orientation="vertical">
-
-</LinearLayout>

app/src/main/res/values/strings.xml

@@ -40,10 +40,7 @@
     <string name="status_content_warning_show_more">Show More</string>
     <string name="status_content_warning_show_less">Show Less</string>
 
-    <string name="footer_end_of_statuses">end of the statuses</string>
+    <string name="footer_empty">Nothing here. Pull down to refresh!</string>
-    <string name="footer_end_of_notifications">end of the notifications</string>
-    <string name="footer_end_of_accounts">end of the accounts</string>
-    <string name="footer_empty">There are no toots here so far. Pull down to refresh!</string>
 
     <string name="notification_reblog_format">%s boosted your toot</string>
     <string name="notification_favourite_format">%s favourited your toot</string>