Restore drag & drop and click; remove DragSortListView library

app/build.gradle

@@ -69,8 +69,6 @@ dependencies {
     androidTestApt 'com.google.dagger:dagger-compiler:2.2'
     provided 'javax.annotation:jsr250-api:1.0'
 
-    compile project(':libs:drag-sort-listview:library')
-
     testCompile 'junit:junit:4.12'
     testCompile 'org.hamcrest:hamcrest-library:1.3'
     testCompile 'org.mockito:mockito-core:1.10.19'

app/src/main/java/org/isoron/uhabits/models/sqlite/SQLiteHabitList.java

@@ -22,6 +22,7 @@ package org.isoron.uhabits.models.sqlite;
 import android.support.annotation.*;
 
 import com.activeandroid.query.*;
+import com.activeandroid.util.*;
 
 import org.apache.commons.lang3.*;
 import org.isoron.uhabits.models.*;
@@ -181,8 +182,16 @@ public class SQLiteHabitList extends HabitList
     {
         if (from == to) return;
 
-        Integer toPos = indexOf(to);
+        HabitRecord fromRecord = HabitRecord.get(from.getId());
-        Integer fromPos = indexOf(from);
+        HabitRecord toRecord = HabitRecord.get(to.getId());
+
+        if (fromRecord == null) throw new RuntimeException("habit not in database");
+        if (toRecord == null) throw new RuntimeException("habit not in database");
+
+        Integer fromPos = fromRecord.position;
+        Integer toPos = toRecord.position;
+
+        Log.d("SQLiteHabitList", String.format("reorder: %d %d", fromPos, toPos));
 
         if (toPos < fromPos)
         {
@@ -199,10 +208,8 @@ public class SQLiteHabitList extends HabitList
                 .execute();
         }
 
-        HabitRecord record = HabitRecord.get(from.getId());
+        fromRecord.position = toPos;
-        if (record == null) throw new RuntimeException("habit not in database");
+        fromRecord.save();
-        record.position = toPos;
-        record.save();
 
         update(from);
 
@@ -212,10 +219,6 @@ public class SQLiteHabitList extends HabitList
     @Override
     public int size()
     {
-//        SQLiteDatabase db = Cache.openDatabase();
-//        SQLiteStatement st = db.compileStatement(buildCountQuery());
-//        return (int) st.simpleQueryForLong();
-
         return toList().size();
     }
 
@@ -251,11 +254,6 @@ public class SQLiteHabitList extends HabitList
         return habits;
     }
 
-    private void appendCount(StringBuilder query)
-    {
-        query.append("select count (*) from habits ");
-    }
-
     private void appendOrderBy(StringBuilder query)
     {
         query.append("order by position ");
@@ -278,14 +276,6 @@ public class SQLiteHabitList extends HabitList
         query.append(" ");
     }
 
-    private String buildCountQuery()
-    {
-        StringBuilder query = new StringBuilder();
-        appendCount(query);
-        appendWhere(query);
-        return query.toString();
-    }
-
     private String buildSelectQuery()
     {
         StringBuilder query = new StringBuilder();

app/src/main/java/org/isoron/uhabits/ui/habits/list/ListHabitsController.java

@@ -98,7 +98,7 @@ public class ListHabitsController
     @Override
     public void onHabitReorder(@NonNull Habit from, @NonNull Habit to)
     {
-        habitList.reorder(from, to);
+        new SimpleTask(() -> habitList.reorder(from, to)).execute();
     }
 
     public void onImportData(@NonNull File file)

app/src/main/java/org/isoron/uhabits/ui/habits/list/ListHabitsRootView.java

@@ -115,7 +115,7 @@ public class ListHabitsRootView extends BaseRootView
                               @NonNull ListHabitsSelectionMenu menu)
     {
         HabitCardListController listController =
-            new HabitCardListController(listAdapter, listView);
+            new HabitCardListController(listAdapter);
 
         listController.setHabitListener(controller);
         listController.setSelectionListener(menu);

app/src/main/java/org/isoron/uhabits/ui/habits/list/controllers/HabitCardListController.java

@@ -21,8 +21,6 @@ package org.isoron.uhabits.ui.habits.list.controllers;
 
 import android.support.annotation.*;
 
-import com.mobeta.android.dslv.*;
-
 import org.isoron.uhabits.models.*;
 import org.isoron.uhabits.ui.habits.list.model.*;
 import org.isoron.uhabits.ui.habits.list.views.*;
@@ -32,9 +30,7 @@ import org.isoron.uhabits.ui.habits.list.views.*;
  * HabitListView. These include selecting and reordering items, toggling
  * checkmarks and clicking habits.
  */
-public class HabitCardListController implements DragSortListView.DropListener,
+public class HabitCardListController implements HabitCardListView.Controller
-                                                DragSortListView.DragListener,
-                                                HabitCardListView.Controller
 {
     private final Mode NORMAL_MODE = new NormalMode();
 
@@ -43,9 +39,6 @@ public class HabitCardListController implements DragSortListView.DropListener,
     @NonNull
     private final HabitCardListAdapter adapter;
 
-    @NonNull
-    private final HabitCardListView view;
-
     @Nullable
     private HabitListener habitListener;
 
@@ -55,11 +48,9 @@ public class HabitCardListController implements DragSortListView.DropListener,
     @NonNull
     private Mode activeMode;
 
-    public HabitCardListController(@NonNull HabitCardListAdapter adapter,
+    public HabitCardListController(@NonNull HabitCardListAdapter adapter)
-                                   @NonNull HabitCardListView view)
     {
         this.adapter = adapter;
-        this.view = view;
         this.activeMode = new NormalMode();
     }
 
@@ -190,7 +181,6 @@ public class HabitCardListController implements DragSortListView.DropListener,
     private void cancelSelection()
     {
         adapter.clearSelection();
-//        view.setDragEnabled(true);
         activeMode = new NormalMode();
 
         if (selectionListener != null) selectionListener.onSelectionFinish();

app/src/main/java/org/isoron/uhabits/ui/habits/list/model/HabitCardListAdapter.java

@@ -121,7 +121,8 @@ public class HabitCardListAdapter
         boolean selected = this.selected.contains(habit);
 
         HabitCardView cardView = (HabitCardView) holder.itemView;
-        listView.bindCardView(cardView, habit, score, checkmarks, selected);
+        listView.bindCardView(cardView, habit, score, checkmarks, selected,
+            position);
     }
 
     @Override

app/src/main/java/org/isoron/uhabits/ui/habits/list/views/HabitCardListView.java

@@ -22,11 +22,10 @@ package org.isoron.uhabits.ui.habits.list.views;
 import android.content.*;
 import android.support.annotation.*;
 import android.support.v7.widget.*;
+import android.support.v7.widget.helper.*;
 import android.util.*;
 import android.view.*;
 
-import com.mobeta.android.dslv.*;
-
 import org.isoron.uhabits.models.*;
 import org.isoron.uhabits.ui.habits.list.controllers.*;
 import org.isoron.uhabits.ui.habits.list.model.*;
@@ -42,11 +41,12 @@ public class HabitCardListView extends RecyclerView
     public HabitCardListView(Context context, AttributeSet attrs)
     {
         super(context, attrs);
-//        setFloatViewManager(new ViewManager());
-//        setDragEnabled(true);
         setLongClickable(true);
         setHasFixedSize(true);
         setLayoutManager(new LinearLayoutManager(getContext()));
+
+        TouchHelperCallback callback = new TouchHelperCallback();
+        new ItemTouchHelper(callback).attachToRecyclerView(this);
     }
 
     /**
@@ -60,13 +60,15 @@ public class HabitCardListView extends RecyclerView
      * @param checkmarks the list of checkmark values to be included in the
      *                   card
      * @param selected   true if the card is selected, false otherwise
+     * @param position
      * @return the HabitCardView generated
      */
     public View bindCardView(@NonNull HabitCardView cardView,
                              @NonNull Habit habit,
                              int score,
                              int[] checkmarks,
-                             boolean selected)
+                             boolean selected,
+                             int position)
     {
         cardView.setHabit(habit);
         cardView.setSelected(selected);
@@ -79,6 +81,12 @@ public class HabitCardListView extends RecyclerView
             cardController.setListener(controller);
             cardView.setController(cardController);
             cardController.setView(cardView);
+
+            cardView.setOnClickListener(v -> controller.onItemClick(position));
+            cardView.setOnLongClickListener(v -> {
+                controller.onItemLongClick(position);
+                return true;
+            });
         }
 
         return cardView;
@@ -99,18 +107,6 @@ public class HabitCardListView extends RecyclerView
     public void setController(@Nullable Controller controller)
     {
         this.controller = controller;
-//        setDropListener(controller);
-//        setDragListener(controller);
-//        setOnItemClickListener(null);
-        setOnLongClickListener(null);
-
-        if (controller == null) return;
-
-//        setOnItemClickListener((p, v, pos, id) -> controller.onItemClick(pos));
-//        setOnItemLongClickListener((p, v, pos, id) -> {
-//            controller.onItemLongClick(pos);
-//            return true;
-//        });
     }
 
     @Override
@@ -128,33 +124,56 @@ public class HabitCardListView extends RecyclerView
     }
 
     public interface Controller extends CheckmarkButtonController.Listener,
-                                        HabitCardController.Listener,
+                                        HabitCardController.Listener
-                                        DragSortListView.DropListener,
-                                        DragSortListView.DragListener
     {
+        void drag(int from, int to);
+
+        void drop(int from, int to);
+
         void onItemClick(int pos);
 
         void onItemLongClick(int pos);
+
+        void startDrag(int position);
     }
 
-//    private class ViewManager extends DragSortController
+    class TouchHelperCallback extends ItemTouchHelper.Callback
-//    {
+    {
-//        public ViewManager()
+        @Override
-//        {
+        public int getMovementFlags(RecyclerView recyclerView,
-//            super(HabitCardListView.this);
+                                    ViewHolder viewHolder)
-//            setRemoveEnabled(false);
+        {
-//        }
+            int dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
-//
+            int swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
-//        @Override
+            return makeMovementFlags(dragFlags, swipeFlags);
-//        public View onCreateFloatView(int position)
+        }
-//        {
+
-//            if (adapter == null) return null;
+        @Override
-//            return adapter.getView(position, null, null);
+        public boolean isLongPressDragEnabled()
-//        }
+        {
-//
+            return true;
-//        @Override
+        }
-//        public void onDestroyFloatView(View floatView)
+
-//        {
+        @Override
-//        }
+        public boolean isItemViewSwipeEnabled()
-//    }
+        {
+            return false;
+        }
+
+        @Override
+        public boolean onMove(RecyclerView recyclerView,
+                              ViewHolder from,
+                              ViewHolder to)
+        {
+            if (controller == null) return false;
+            controller.drop(from.getAdapterPosition(), to.getAdapterPosition());
+            return true;
+        }
+
+        @Override
+        public void onSwiped(ViewHolder viewHolder, int direction)
+        {
+            // NOP
+        }
+    }
 }

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

@@ -45,9 +45,6 @@
         android:divider="?windowBackgroundColor"
         android:dividerHeight="1dp"
         android:listSelector="@android:color/transparent"
-        app:drag_start_mode="onLongPress"
-        app:sort_enabled="true"
-        app:track_drag_sort="false"
         android:layout_below="@id/header"/>
 
     <LinearLayout

app/src/test/java/org/isoron/uhabits/ui/habits/list/controllers/HabitCardListControllerTest.java

@@ -66,7 +66,7 @@ public class HabitCardListControllerTest extends BaseUnitTest
 
         resetMocks();
 
-        this.controller = new HabitCardListController(adapter, view);
+        this.controller = new HabitCardListController(adapter);
         controller.setHabitListener(habitListener);
         controller.setSelectionListener(selectionListener);
         view.setController(controller);

settings.gradle

@@ -1,2 +1 @@
 include ':app'
-include ':libs:drag-sort-listview:library'