Can now undo swipe to mark as read.

Behavior isn't ideal when the user is displaying all the items in their feed.
(you can swipe new and read items and they don't go away (obviously)).

app/src/main/java/de/danoeh/antennapod/fragment/NewEpisodesFragment.java

@@ -7,6 +7,7 @@ import android.content.SharedPreferences;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.Parcelable;
 import android.support.v4.app.Fragment;
 import android.support.v7.widget.SearchView;
 import android.util.Log;
@@ -45,6 +46,7 @@ import de.danoeh.antennapod.core.storage.DBWriter;
 import de.danoeh.antennapod.core.storage.DownloadRequester;
 import de.danoeh.antennapod.core.util.QueueAccess;
 import de.danoeh.antennapod.core.util.gui.FeedItemUndoToken;
+import de.danoeh.antennapod.core.util.gui.UndoBarController;
 import de.danoeh.antennapod.menuhandler.MenuItemUtils;
 import de.danoeh.antennapod.menuhandler.NavDrawerActivity;
 
@@ -68,6 +70,8 @@ public class NewEpisodesFragment extends Fragment {
     private TextView txtvEmpty;
     private ProgressBar progLoading;
 
+    private UndoBarController undoBarController;
+
     private List<FeedItem> unreadItems;
     private List<FeedItem> recentItems;
     private QueueAccess queueAccess;
@@ -135,6 +139,7 @@ public class NewEpisodesFragment extends Fragment {
         listAdapter = null;
         activity.set(null);
         viewsCreated = false;
+        undoBarController = null;
         if (downloadObserver != null) {
             downloadObserver.onPause();
         }
@@ -262,6 +267,10 @@ public class NewEpisodesFragment extends Fragment {
                 stopItemLoader();
                 FeedItem item = (FeedItem) listView.getAdapter().getItem(which);
                 DBWriter.markItemRead(getActivity(), item.getId(), true);
+                undoBarController.showUndoBar(false,
+                        getString(R.string.marked_as_read_label), new FeedItemUndoToken(item,
+                                which)
+                );
                 // TODO: provide undo?
                 /*
                 undoBarController.showUndoBar(false,
@@ -272,6 +281,19 @@ public class NewEpisodesFragment extends Fragment {
             }
         });
 
+        undoBarController = new UndoBarController(root.findViewById(R.id.undobar), new UndoBarController.UndoListener() {
+            @Override
+            public void onUndo(Parcelable token) {
+                // Perform the undo
+                FeedItemUndoToken undoToken = (FeedItemUndoToken) token;
+                if (token != null) {
+                    long itemId = undoToken.getFeedItemId();
+                    int position = undoToken.getPosition();
+                    DBWriter.markItemRead(getActivity(), itemId, false);
+                }
+            }
+        });
+
         final int secondColor = (UserPreferences.getTheme() == R.style.Theme_AntennaPod_Dark) ? R.color.swipe_refresh_secondary_color_dark : R.color.swipe_refresh_secondary_color_light;
 
         if (!itemsLoaded) {

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

@@ -50,4 +50,18 @@
         tools:layout_height="64dp"
         tools:background="@android:color/holo_red_light"/>
 
+    <LinearLayout
+        android:id="@+id/undobar"
+        style="@style/UndoBar">
+
+        <TextView
+            android:id="@+id/undobar_message"
+            style="@style/UndoBarMessage"/>
+
+        <Button
+            android:id="@+id/undobar_button"
+            style="@style/UndoBarButton"/>
+
+    </LinearLayout>
+
 </FrameLayout>

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

@@ -100,6 +100,7 @@
     <string name="remove_episode_lable">Remove episode</string>
     <string name="mark_read_label">Mark as read</string>
     <string name="mark_unread_label">Mark as unread</string>
+    <string name="marked_as_read_label">Marked as read</string>
     <string name="add_to_queue_label">Add to Queue</string>
     <string name="remove_from_queue_label">Remove from Queue</string>
     <string name="visit_website_label">Visit Website</string>