paste method

void paste()

Ctrl+V: a copy of what was copied, after the selection -- or into it, when the selection holds children -- or at the end of the page.

Implementation

void paste() {
  final DVPageNode? held = _clipboard;
  if (held == null) return;
  final DVPageNode copy = _dvStudioFresh(held);
  final String? at = _selectedId;
  final DVPageNode? selected = at == null ? null : _editor.find(at);
  if (selected == null || selected.id == _document.root.id) {
    insert(copy, parent: _document.root.id);
    return;
  }
  if (selected.type == 'box') {
    insert(copy, parent: selected.id);
    return;
  }
  final DVPageNode parent = _dvStudioParentOf(_document.root, selected.id)!;
  final int index =
      parent.children.indexWhere((DVPageNode n) => n.id == selected.id) + 1;
  insert(copy, parent: parent.id, index: index);
}