chips property

List<T> get chips

Returns an unmodifiable list of all chips in the controller.

Implementation

List<T> get chips => List.unmodifiable(_chipMap.values);

set chips (List<T> newChips)

Sets the chips in this controller, replacing all existing chips.

Implementation

set chips(List<T> newChips) {
  String text = value.text;
  // remove chips that are not in newChips
  // add chips that are in newChips but not present, appending them at the last chip position
  StringBuffer buffer = StringBuffer();
  int chipCount = 0;
  for (int i = 0; i < text.length; i++) {
    int codeUnit = text.codeUnitAt(i);
    if (codeUnit >= _chipStart && codeUnit <= _chipEnd) {
      T? existingChip = _chipMap[codeUnit - _chipStart];
      if (existingChip != null && newChips.contains(existingChip)) {
        buffer.writeCharCode(codeUnit);
        chipCount++;
      }
    } else {
      buffer.writeCharCode(codeUnit);
    }
  }
  for (int i = chipCount; i < newChips.length; i++) {
    T chip = newChips[i];
    int chipIndex = _nextAvailableChipIndex;
    buffer.writeCharCode(_chipStart + chipIndex);
    _chipMap[chipIndex] = chip;
  }
  super.value = value.copyWith(
    text: buffer.toString(),
    selection: TextSelection.collapsed(offset: buffer.length),
  );
}