private CommitPosition TryGetSelectedCommitPosition()
{
Commit selected = (SelectedItem as CommitViewModel)?.Commit;
int index = -1;
if (selected != null)
{
index = Commits.FindIndex(c => c.Commit.Id == selected.Id);
}
if (selected != null && index != -1)
{
return(new CommitPosition(selected, index));
}
return(null);
}
private void TrySetSelectedCommitPosition(
CommitPosition commitPosition, bool ignoreTopIndex = false)
{
if (commitPosition != null)
{
if (!ignoreTopIndex && commitPosition.Index == 0)
{
// The index was 0 (top) lest ensure the index remains 0 again
Log.Debug("Scroll to 0 since first position was 0");
ScrollTo(0);
if (Commits.Any())
{
SelectedIndex = 0;
SelectedItem = Commits.First();
}
return;
}
Commit selected = commitPosition.Commit;
int indexAfter = Commits.FindIndex(c => c.Commit.Id == selected.Id);
if (selected != null && indexAfter != -1)
{
int indexBefore = commitPosition.Index;
ScrollRows(indexBefore - indexAfter);
SelectedIndex = indexAfter;
SelectedItem = Commits[indexAfter];
return;
}
}
ScrollTo(0);
if (Commits.Any())
{
SelectedIndex = 0;
SelectedItem = Commits.First();
}
}