insertAfter method
- TextBit another
Inserts self after another
in the text tree.
Implementation
bool insertAfter(TextBit another) {
if (parent == null) return false;
assert(parent == another.parent);
final siblings = parent._children;
final i = siblings.indexOf(another);
if (i == -1) return false;
siblings.insert(i + 1, this);
return true;
}