live_cells_core 0.15.0

Provides the core of live cells: A replacement for ChangeNotifier and ValueNotifier that is easier to use and more flexible

0.15.0

New features:

• .awaited property on cells holding a Future.

  Returns a cell which evaluates to the value of the Future when completed, throws an UninitializedCellError when it is pending.

• .isCompleted property on cells holding a Future.

  Returns a cell which evaluates to true when the Future is complete, false while it is pending.

• .initialValue(...) which returns a cell with takes on the value of the given cell until it is initialized.

0.14.1

Minor additions:

• .waitLast property which is the same as .wait but if a new Future is recevied before the previous one has resolved, the previous value update is dropped.

0.14.0

New features for asynchronous cells:

• .wait property for creating a cell that awaits a Future held in another cell.
• .delayed for creating a cell that takes the value of another cell but only notifies its observers after a given delay.

Breaking changes:

• Removed DelayCell.

0.13.0

• .cell extension property is now available on all types
• Additions to Iterable cell extension:
  • cast<E>() method
  • map() method
• Additions to List cell extension:
  • cast<E>() method
  • mapCells() method

0.12.3

• Fix potential issues when the computed value of a mutable computed cell is the same as its assigned value.

0.12.2

• Fix issue with recomputing the value of mutable computed cells.

0.12.1

• Reduce minimum version of meta dependency

0.12.0

New features:

• Record extension methods for creating lightweight computed (and mutable computed) cells:

  (a, b).apply((a,b) => a + b);
  (a, b).mutableApply((a,b) => a + b, (v) {...});
  

• changesOnly option in cell constructors. When this option is set to true, the cell only notifies its observers when its value has actually changed.

• Relaxed restriction that MutableCellView only accept a single argument

• Extensions which allow Iterable, List, Map and Set methods and properties to be used directly on cells:

  ValueCell<List<int>> listCell;
  ValueCell<int> index;
  ... 
  final elementI = listCell[index];
  final length = listCell.length;
  

Breaking changes:

• CellObserver.update now takes a second didChange parameter. This only affects code that uses the CellObserver interface directly.
• DependentCell, ComputeCell and MutableCellView now take an argument Set as opposed to an argument List. This only affects code which instantiates these classes directly.
• Remove CellListenableExtension. This will be moved to the live_cell_widgets package.

Other changes:

• Removed dependency on Flutter. This package can now be used in pure Dart applications.
• Deprecated ListComputeExtension, i.e. [a, b].computeCell(...). Use the record compute extensions instead.

0.11.0

• Core live cell definitions extracted from live_cells package to this package.