onListLongpress method

void onListLongpress({ required int listIndex, required BuildContext context, required VoidCallback setstate, })

Implementation

void onListLongpress(
    {required int listIndex,
    required BuildContext context,
    required VoidCallback setstate}) {
  var prov = ref.read(ProviderList.boardProvider);
  for (var element in prov.board.lists) {
    if (element.context == null) break;
    var of = (element.context!.findRenderObject() as RenderBox)
        .localToGlobal(Offset.zero);
    element.x = of.dx - prov.board.displacementX!;
    element.width = element.context!.size!.width - 30;
    element.height = element.context!.size!.height - 30;
    element.y = of.dy - prov.board.displacementY!;
  }
  var box = context.findRenderObject() as RenderBox;
  var location = box.localToGlobal(Offset.zero);
  prov.updateValue(
      dx: location.dx - prov.board.displacementX! - 10,
      dy: location.dy - prov.board.displacementY! + 24);

  prov.board.dragItemIndex = null;
  prov.board.dragItemOfListIndex = listIndex;
  prov.draggedItemState = DraggedItemState(
      child: Container(
        width: box.size.width - 30,
        height: box.size.height - 30,
        color: prov.board.lists[listIndex].backgroundColor,
        child: Column(children: [
          Container(
            margin: const EdgeInsets.only(
              top: 20,
            ),
            padding: const EdgeInsets.only(left: 15, bottom: 10),
            alignment: Alignment.centerLeft,
            child: Text(
              prov.board.lists[listIndex].title,
              style: const TextStyle(
                  fontSize: 20,
                  color: Colors.black,
                  fontWeight: FontWeight.bold),
            ),
          ),
          Expanded(
            child: MediaQuery.removePadding(
              context: context,
              removeTop: true,
              child: ListView.builder(
                physics: const ClampingScrollPhysics(),
                controller: null,
                itemCount: prov.board.lists[listIndex].items.length,
                shrinkWrap: true,
                itemBuilder: (ctx, index) {
                  return Item(
                    color: prov.board.lists[listIndex].items[index]
                            .backgroundColor ??
                        Colors.grey.shade200,
                    itemIndex: index,
                    listIndex: listIndex,
                  );
                },

                // itemCount: prov.items.length,
              ),
            ),
          ),
        ]),
      ),
      listIndex: listIndex,
      itemIndex: null,
      height: box.size.height - 30,
      width: box.size.width - 30,
      x: location.dx - prov.board.displacementX!,
      y: location.dy - prov.board.displacementY!);
  prov.draggedItemState!.setState = () => setstate;
  prov.board.dragItemIndex = null;
  prov.board.isListDragged = true;
  prov.board.dragItemOfListIndex = listIndex;
  setstate();
}