Widget _buildCart(BuildContext context, Widget child)
{
AppStateModel model = ScopedModel <AppStateModel> .of(context);
int numProducts = model.productsInCart.Keys.Count;
int totalCartQuantity = model.totalCartQuantity;
Size screenSize = MediaQuery.of(context).size;
float screenWidth = screenSize.width;
float screenHeight = screenSize.height;
_width = _widthFor(numProducts);
_widthAnimation = _getWidthAnimation(screenWidth);
_heightAnimation = _getHeightAnimation(screenHeight);
_shapeAnimation = _getShapeAnimation();
_thumbnailOpacityAnimation = _getThumbnailOpacityAnimation();
_cartOpacityAnimation = _getCartOpacityAnimation();
return(new Container(
width: _widthAnimation.value,
height: _heightAnimation.value,
child: new Material(
animationDuration: TimeSpan.FromMilliseconds(0),
shape: new BeveledRectangleBorder(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(_shapeAnimation.value)
)
),
elevation: 4.0f,
color: shrineColorsUtils.kShrinePink50,
child: _cartIsVisible
? _buildShoppingCartPage()
: _buildThumbnails(numProducts)
)
));
}
Product _productWithId(int productId)
{
AppStateModel model = ScopedModel <AppStateModel> .of(context);
Product product = model.getProductById(productId);
D.assert(product != null);
return(product);
}
public override void initState()
{
base.initState();
_list = new _ListModel(
listKey: _listKey,
initialItems: ScopedModel <AppStateModel> .of(context).productsInCart.Keys.ToList(),
removedItemBuilder: _buildRemovedThumbnail
);
_internalList = new List <int>(_list.list);
}
void _updateLists()
{
_internalList = ScopedModel <AppStateModel> .of(context).productsInCart.Keys.ToList();
HashSet <int> internalSet = new HashSet <int>(_internalList);
HashSet <int> listSet = new HashSet <int>(_list.list);
HashSet <int> difference = new HashSet <int>();
foreach (var _set in internalSet)
{
if (!listSet.Contains(_set))
{
difference.Add(_set);
}
}
if (difference.isEmpty())
{
return;
}
foreach (int product in difference)
{
if (_internalList.Count < _list.length)
{
_list.remove(product);
}
else if (_internalList.Count > _list.length)
{
_list.add(product);
}
}
while (_internalList.Count != _list.length)
{
int index = 0;
// Check bounds and that the list elements are the same
while (_internalList.isNotEmpty() &&
_list.length > 0 &&
index < _internalList.Count &&
index < _list.length &&
_internalList[index] == _list.ElementAt(index))
{
index++;
}
}
}