internal InfiniteScrollList(Lazy <JoinableTaskFactory> joinableTaskFactory)
{
if (joinableTaskFactory == null)
{
throw new ArgumentNullException(nameof(joinableTaskFactory));
}
_joinableTaskFactory = joinableTaskFactory;
InitializeComponent();
_list.ItemsLock = ReentrantSemaphore.Create(
initialCount: 1,
joinableTaskContext: _joinableTaskFactory.Value.Context,
mode: ReentrantSemaphore.ReentrancyMode.Stack);
BindingOperations.EnableCollectionSynchronization(Items, _list.ItemsLock);
ItemsView = new CollectionViewSource()
{
Source = Items
}.View;
DataContext = ItemsView;
CheckBoxesEnabled = false;
_loadingStatusIndicator.PropertyChanged += LoadingStatusIndicator_PropertyChanged;
}
protected override ReentrantSemaphore CreateSemaphore(ReentrantSemaphore.ReentrancyMode mode, int initialCount = 1)
{
if (this.joinableTaskContext == null)
{
using (this.Dispatcher.Apply())
{
this.joinableTaskContext = new JoinableTaskContext();
}
}
return(ReentrantSemaphore.Create(initialCount, this.joinableTaskContext, mode));
}
internal InfiniteScrollList(Lazy <JoinableTaskFactory> joinableTaskFactory)
{
if (joinableTaskFactory == null)
{
throw new ArgumentNullException(nameof(joinableTaskFactory));
}
_joinableTaskFactory = joinableTaskFactory;
InitializeComponent();
_list.ItemsLock = ReentrantSemaphore.Create(
initialCount: 1,
joinableTaskContext: _joinableTaskFactory.Value.Context,
mode: ReentrantSemaphore.ReentrancyMode.Stack);
BindingOperations.EnableCollectionSynchronization(Items, _list.ItemsLock);
DataContext = Items;
CheckBoxesEnabled = false;
}
protected OnceInitializedOnceDisposedUnderLockAsync(JoinableTaskContextNode joinableTaskContextNode)
: base(joinableTaskContextNode)
{
_semaphore = ReentrantSemaphore.Create(1, joinableTaskContextNode.Context, ReentrantSemaphore.ReentrancyMode.Stack);
}
#pragma warning disable VSTHRD012 // Provide JoinableTaskFactory where allowed (we do this in the JTF-aware variant of these tests in a derived class.)
protected virtual ReentrantSemaphore CreateSemaphore(ReentrantSemaphore.ReentrancyMode mode = ReentrantSemaphore.ReentrancyMode.NotAllowed, int initialCount = 1) => ReentrantSemaphore.Create(initialCount, mode: mode);
