FairEmail/patches/SelectionTracker.patch

--- /home/marcel/support/recyclerview/recyclerview-selection/src/main/java/androidx/recyclerview/selection/DefaultSelectionTracker.java	2020-03-23 17:03:46.043122318 +0100
+++ app/src/main/java/androidx/recyclerview/selection/DefaultSelectionTracker.java	2020-06-26 16:48:04.938298254 +0200
@@ -379,6 +379,10 @@ public class DefaultSelectionTracker<K>
         return mRange != null;
     }
 
+    boolean isOverlapping(int position, int count) {
+        return (mRange != null && mRange.isOverlapping(position, count));
+    }
+
     private boolean canSetState(@NonNull K key, boolean nextState) {
         return mSelectionPredicate.canSetStateForKey(key, nextState);
     }
@@ -390,7 +394,7 @@ public class DefaultSelectionTracker<K>
 
     @SuppressWarnings({"WeakerAccess", "unchecked"}) /* synthetic access */
     void onDataSetChanged() {
-        mSelection.clearProvisionalSelection();
+        //mSelection.clearProvisionalSelection();
 
         notifySelectionRefresh();
 
@@ -601,17 +605,21 @@ public class DefaultSelectionTracker<K>
 
         @Override
         public void onItemRangeInserted(int startPosition, int itemCount) {
-            mSelectionTracker.endRange();
+            if (mSelectionTracker.isOverlapping(startPosition, itemCount))
+                mSelectionTracker.endRange();
         }
 
         @Override
         public void onItemRangeRemoved(int startPosition, int itemCount) {
-            mSelectionTracker.endRange();
+            if (mSelectionTracker.isOverlapping(startPosition, itemCount))
+                mSelectionTracker.endRange();
         }
 
         @Override
         public void onItemRangeMoved(int fromPosition, int toPosition, int itemCount) {
-            mSelectionTracker.endRange();
+            if (mSelectionTracker.isOverlapping(fromPosition, itemCount) ||
+                    mSelectionTracker.isOverlapping(toPosition, itemCount))
+                mSelectionTracker.endRange();
         }
     }
 }
--- /home/marcel/support/recyclerview/recyclerview-selection/src/main/java/androidx/recyclerview/selection/Range.java	2020-03-23 17:03:46.045122318 +0100
+++ app/src/main/java/androidx/recyclerview/selection/Range.java	2020-06-26 16:36:39.708283142 +0200
@@ -169,6 +169,11 @@ final class Range {
         mCallbacks.updateForRange(begin, end, selected, type);
     }
 
+    boolean isOverlapping(int position, int count) {
+        return (position >= mBegin && position <= mEnd) ||
+                (position + count >= mBegin && position + count <= mEnd);
+    }
+
     @Override
     public String toString() {
         return "Range{begin=" + mBegin + ", end=" + mEnd + "}";
--- /home/marcel/support/recyclerview/recyclerview-selection/src/main/java/androidx/recyclerview/selection/SelectionTracker.java	2020-03-23 17:03:46.046122318 +0100
+++ app/src/main/java/androidx/recyclerview/selection/SelectionTracker.java	2020-04-24 21:08:55.544011257 +0200
@@ -503,7 +503,7 @@ public abstract class SelectionTracker<K
         private OnContextClickListener mOnContextClickListener;
 
         private BandPredicate mBandPredicate;
-        private int mBandOverlayId = R.drawable.selection_band_overlay;
+        private int mBandOverlayId = eu.faircode.email.R.drawable.selection_band_overlay;
 
         // TODO(b/144500333): Remove support for overriding gesture and pointer tooltypes.
         private int[] mGestureToolTypes = new int[]{
@@ -815,7 +815,11 @@ public abstract class SelectionTracker<K
                         @Override
                         public void run() {
                             if (mSelectionPredicate.canSelectMultiple()) {
-                                gestureHelper.start();
+                                try {
+                                    gestureHelper.start();
+                                } catch (Throwable ex) {
+                                    eu.faircode.email.Log.e(ex);
+                                }
                             }
                         }
                     },