getBoundingClientRect method

void getBoundingClientRect(RenderViewModel viewModel, VoltronArray array, Promise? promise)

Implementation

void getBoundingClientRect(
  RenderViewModel viewModel,
  VoltronArray array,
  Promise? promise,
) {
  var map = array.get<VoltronMap>(0);
  bool relToContainer = map?.get(kKeyRelToContainer) ?? false;
  if (promise == null) return;
  var rootViewModel = viewModel.context.rootViewModelMap[viewModel.rootId];
  var renderObject = viewModel.currentContext?.findRenderObject() as RenderBox?;
  var rootRenderObject = rootViewModel?.currentContext?.findRenderObject() as RenderBox?;
  var x = 0.0;
  var y = 0.0;
  var width = 0.0;
  var height = 0.0;
  if (relToContainer) {
    if (renderObject == null || rootRenderObject == null) {
      promise.reject("this view or root view is null");
    } else {
      var rootPosition = rootRenderObject.localToGlobal(Offset.zero);
      var rootX = rootPosition.dx;
      var rootY = rootPosition.dy;

      var position = renderObject.localToGlobal(Offset.zero);
      var size = renderObject.size;

      x = position.dx - rootX;
      y = position.dy - rootY;
      width = size.width;
      height = size.height;
    }
  } else {
    if (renderObject == null) {
      promise.reject("this view is null");
    } else {
      var position = renderObject.localToGlobal(Offset.zero);
      var size = renderObject.size;

      x = position.dx;
      y = position.dy;
      width = size.width;
      height = size.height;
    }
  }
  var paramsMap = VoltronMap();
  paramsMap.push("x", x);
  paramsMap.push("y", y);
  paramsMap.push("width", width);
  paramsMap.push("height", height);

  promise.resolve(paramsMap);
}