public void calculates_diff_from_level_0_to_level_1()
{
var node = CreateNodeOfLevel0();
var otherNode = CreateNodeOfLevel1();
var diffResult = TreeMenuDiff.Calculate(node, otherNode);
Assert.Equal(new[] { 0, 2, 3, 4 }, diffResult.AddedIndexes);
Assert.Equal(new[] { 1 }, diffResult.RemovedIndexes);
Assert.Equal(new[] { (0, ItemRelation.Selected) }, diffResult.ChangedIndexes);
private async Task SetCurrentNodeWithAnimationAsync(UICollectionView collectionView, TreeNode <T, TKey> selectedNode)
{
var diffResult = TreeMenuDiff.Calculate(_currentNode, selectedNode);
diffResult
.ChangedIndexes
.Select(x => (cell: collectionView.CellForItem(NSIndexPath.FromRowSection(x.Index, 0)), relation: x.Relation))
.Where(x => x.cell != null)
.ForEach((_, x) => _itemStateChanged(x.cell, x.relation));
_currentNode = selectedNode;
_itemCollection.CurrentNode = selectedNode;
await AnimateDiffAsync(collectionView, diffResult);
NodeSelected?.Invoke(this, selectedNode);
}
private async Task SetCurrentNodeWithAnimationAsync(TreeNode <T, TKey> selectedNode)
{
var diffResult = TreeMenuDiff.Calculate(_currentNode, selectedNode);
diffResult
.ChangedIndexes
.Select(x => (cell: _recyclerView.FindViewHolderForLayoutPosition(x.Index), relation: x.Relation))
.Where(x => x.cell != null)
.ForEach((_, x) => _itemStateChanged(x.cell, x.relation));
_currentNode = selectedNode;
_itemCollection.CurrentNode = selectedNode;
_itemAnimator.DiffResult = diffResult;
await AnimateDiffAsync(diffResult);
NodeSelected?.Invoke(this, selectedNode);
}