public void TopShouldRefresh()
{
var source = new SourceCache <int, int>(i => i);
var dest = source.Connect().Top(Comparer <int> .Create((_, __) => 0), 2).AsObservableCache();
source.AddOrUpdate(Enumerable.Range(0, 5));
dest.Items.Should().BeEquivalentTo(Enumerable.Range(0, 2));
source.RemoveKey(0);
source.RemoveKey(1);
dest.Items.Should().BeEquivalentTo(Enumerable.Range(2, 2));
}
public DirectoryListVM(ISourceDirectoryService sourceDirectoryService)
{
this.WhenActivated(disposables =>
{
AddDirectory = ReactiveCommand.Create(
() => {
var card = Locator.Current.GetService <IDirectoryCard>();
card.SetEditMode(true);
card.EditModeChanges
.Where(x => x == false)
.Take(1)
.Subscribe(_ => _temporaryDirectoryCards.RemoveKey(card.Id));
_temporaryDirectoryCards.AddOrUpdate(card);
}
);
sourceDirectoryService.Directories
.Connect()
.Transform(model =>
Locator.Current.GetService <IDirectoryCard>()
.SetSourceModel(model)
).FullJoin(
_temporaryDirectoryCards.Connect(),
x => x.Id,
(saved, temp) => saved.HasValue ? saved.Value : temp.Value
) // basically a concat
.Bind(out var directoryCards)
.Subscribe()
.DisposeWith(disposables);
this.DirectoryCards = directoryCards;
});
}
public TagService()
{
_tagDtos.AddOrUpdate(new[]
{
new TagDto {
Id = 1, Name = @"Country\Canada\Alberta"
},
new TagDto {
Id = 2, Name = @"Country\Canada\British Columbia"
},
new TagDto {
Id = 3, Name = @"Country\USA\California"
},
new TagDto {
Id = 4, Name = @"Country\USA\Texas"
}
});
_tagDtos
.Connect()
.Transform(dto =>
{
var names = dto.Name.Split(new[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
var results = new TagLeaf[names.Length];
var parentId = "";
for (var i = 0; i < names.Length; i++)
{
var name = names[i];
var id = $"{parentId}{name}\\";
results[i] = new TagLeaf(id, parentId, dto.Id, name);
parentId = id;
}
return(new TagBranch(dto.Id, results));
})
.ForEachChange(change =>
{
var branch = change.Current;
switch (change.Reason)
{
case ChangeReason.Remove:
var lastLeaf = branch.Leaves.Last();
_tagLeafs.RemoveKey(lastLeaf.Id);
break;
case ChangeReason.Add:
foreach (var leaf in branch.Leaves)
{
if (_tagLeafs.Keys.Contains(leaf.Id))
{
continue;
}
_tagLeafs.AddOrUpdate(leaf);
}
break;
}
})
.Subscribe();
}
public void RemoveAccount(Account account)
{
_accounts.RemoveKey(account.Address);
if (nethereumHostProvider.SelectedAccount == account.Address)
{
var firstAccount = Accounts.KeyValues.FirstOrDefault().Value;
nethereumHostProvider.SetSelectedAccount(firstAccount);
}
}
public void RemoveKey(string key)
{
if (string.IsNullOrWhiteSpace(key))
{
throw new ArgumentException("message", nameof(key));
}
_cache.RemoveKey(key);
}
public new WeatherForecast Remove(Guid itemId)
{
var item = base.Remove(itemId);
if (item != null)
{
sourceCache.RemoveKey(item.Id);
}
return(item);
}
public void TransformManyWithKey()
{
var children = Enumerable.Range(1, 100).Select(i => new Person("Name" + i, i)).ToArray();
int childIndex = 0;
var parents = Enumerable.Range(1, 50)
.Select(i =>
{
var parent = new Parent(i, new[]
{
children[childIndex],
children[childIndex + 1]
});
childIndex = childIndex + 2;
return(parent);
}).ToArray();
using (var source = new SourceCache <Parent, int>(x => x.Id))
using (var aggregator = source.Connect()
.TransformMany(p => p.Children, c => c.Name)
.AsAggregator())
{
source.AddOrUpdate(parents);
aggregator.Data.Count.Should().Be(100);
//add a child to an observable collection and check the new item is added
parents[0].Children.Add(new Person("NewlyAddded", 100));
aggregator.Data.Count.Should().Be(101);
////remove first parent and check children have gone
source.RemoveKey(1);
aggregator.Data.Count.Should().Be(98);
//check items can be cleared and then added back in
var childrenInZero = parents[1].Children.ToArray();
parents[1].Children.Clear();
aggregator.Data.Count.Should().Be(96);
parents[1].Children.AddRange(childrenInZero);
aggregator.Data.Count.Should().Be(98);
//replace produces an update
var replacedChild = parents[1].Children[0];
parents[1].Children[0] = new Person("Replacement", 100);
aggregator.Data.Count.Should().Be(98);
aggregator.Data.Lookup(replacedChild.Name).HasValue.Should().BeFalse();
aggregator.Data.Lookup("Replacement").HasValue.Should().BeTrue();
}
}
public void FlattenObservableCollectionWithProjectionFromObservableCache()
{
var children = new[]
{
new NestedChild("A", "ValueA"),
new NestedChild("B", "ValueB"),
new NestedChild("C", "ValueC"),
new NestedChild("D", "ValueD"),
new NestedChild("E", "ValueE"),
new NestedChild("F", "ValueF")
};
var parents = new[]
{
new ClassWithNestedObservableCollection(1, new[] { children[0], children[1] }),
new ClassWithNestedObservableCollection(2, new[] { children[2], children[3] }),
new ClassWithNestedObservableCollection(3, new[] { children[4] })
};
using (var source = new SourceCache <ClassWithNestedObservableCollection, int>(x => x.Id))
using (var sut = source.Connect()
.AutoRefreshOnObservable(self => self.Children.ToObservableChangeSet())
.TransformMany(parent => parent.Children.Select(c => new ProjectedNestedChild(parent, c)), c => c.Child.Name)
.AsObservableCache())
{
source.AddOrUpdate(parents);
sut.Count.Should().Be(5);
sut.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children.Take(5).Select(c => new ProjectedNestedChild(p, c))));
//add a child to the observable collection
parents[2].Children.Add(children[5]);
sut.Count.Should().Be(6);
sut.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children.Select(c => new ProjectedNestedChild(p, c))));
//remove a parent and check children have moved
source.RemoveKey(1);
sut.Count.Should().Be(4);
sut.Items.ShouldBeEquivalentTo(parents.Skip(1).SelectMany(p => p.Children.Select(c => new ProjectedNestedChild(p, c))));
//add a parent and check items have been added back in
source.AddOrUpdate(parents[0]);
sut.Count.Should().Be(6);
sut.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children.Select(c => new ProjectedNestedChild(p, c))));
}
}
public void FlattenObservableCollection()
{
var children = new[]
{
new NestedChild("A", "ValueA"),
new NestedChild("B", "ValueB"),
new NestedChild("C", "ValueC"),
new NestedChild("D", "ValueD"),
new NestedChild("E", "ValueE"),
new NestedChild("F", "ValueF")
};
var parents = new[]
{
new ClassWithNestedObservableCollection(1, new[] { children[0], children[1] }),
new ClassWithNestedObservableCollection(2, new[] { children[2], children[3] }),
new ClassWithNestedObservableCollection(3, new[] { children[4] })
};
using (var source = new SourceCache <ClassWithNestedObservableCollection, int>(x => x.Id))
using (var sut = new FlattenNestedObservableCollection(source))
{
source.AddOrUpdate(parents);
sut.Children.Count.Should().Be(5);
sut.Children.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children.Take(5)));
//add a child to the observable collection
parents[2].Children.Add(children[5]);
sut.Children.Count.Should().Be(6);
sut.Children.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children));
//remove a parent and check children have moved
source.RemoveKey(1);
sut.Children.Count.Should().Be(4);
sut.Children.Items.ShouldBeEquivalentTo(parents.Skip(1).SelectMany(p => p.Children));
//add a parent and check items have been added back in
source.AddOrUpdate(parents[0]);
sut.Children.Count.Should().Be(6);
sut.Children.Items.ShouldBeEquivalentTo(parents.SelectMany(p => p.Children));
}
}
public void AutoRefresh(ForceEvaluationMode mode)
{
var items = new List <MutableThing>
{
new MutableThing(1, "A"),
new MutableThing(2, "A"),
new MutableThing(3, "B"),
new MutableThing(4, "C"),
new MutableThing(5, "D"),
new MutableThing(6, "D"),
};
//result should only be true when all items are set to true
using (var cache = new SourceCache <MutableThing, int>(m => m.Id))
{
var sut = mode == ForceEvaluationMode.Cache
? new AutoRefreshForPropertyChanges(cache)
: new AutoRefreshForPropertyChanges(cache.Connect());
int count = 0;
sut.DistinctCount.Subscribe(result => count = result);
cache.AddOrUpdate(items);
count.Should().Be(4);
//check mutating a value works
items[2].Value = "A";
count.Should().Be(3);
//check remove works
cache.RemoveKey(4);
count.Should().Be(2);
//check add works
cache.AddOrUpdate(new MutableThing(10, "z"));
count.Should().Be(3);
}
}
private SteamConnectService()
{
mCurrent = this;
SteamApps = new SourceCache <SteamApp, uint>(t => t.AppId);
DownloadApps = new SourceCache <SteamApp, uint>(t => t.AppId);
DownloadApps
.Connect()
.Subscribe(_ =>
{
foreach (var app in DownloadApps.Items)
{
var optional = SteamApps.Lookup(app.AppId);
if (optional.HasValue)
{
var value = optional.Value;
value.InstalledDir = app.InstalledDir;
value.State = app.State;
value.SizeOnDisk = app.SizeOnDisk;
value.LastOwner = app.LastOwner;
value.BytesToDownload = app.BytesToDownload;
value.BytesDownloaded = app.BytesDownloaded;
value.BytesToStage = app.BytesToStage;
value.BytesStaged = app.BytesStaged;
value.LastUpdated = app.LastUpdated;
}
}
});
this.WhenValueChanged(x => x.IsWatchSteamDownloading, false)
.Subscribe(x =>
{
if (x)
{
InitializeDownloadGameList();
if (OperatingSystem2.IsLinux)
{
IPlatformService.Instance.TryGetSystemUserPassword();
}
SteamTool.StartWatchSteamDownloading(app =>
{
var optional = DownloadApps.Lookup(app.AppId);
if (!optional.HasValue)
{
DownloadApps.AddOrUpdate(app);
}
else
{
var current = optional.Value;
current.InstalledDir = app.InstalledDir;
current.State = app.State;
current.SizeOnDisk = app.SizeOnDisk;
current.LastOwner = app.LastOwner;
current.BytesToDownload = app.BytesToDownload;
current.BytesDownloaded = app.BytesDownloaded;
current.BytesToStage = app.BytesToStage;
current.BytesStaged = app.BytesStaged;
current.LastUpdated = app.LastUpdated;
}
if (WatchDownloadingSteamAppIds.Contains(app.AppId))
{
if (app.IsDownloading)
{
app.IsWatchDownloading = true;
}
else
{
WatchDownloadingSteamAppIds.Remove(app.AppId);
if (!WatchDownloadingSteamAppIds.Any())
{
WatchDownloadingComplete();
}
}
}
}, appid =>
{
DownloadApps.RemoveKey(appid);
});
}
else
{
SteamTool.StopWatchSteamDownloading();
}
});
}
protected void RemoveKey(string item)
{
_sourceCache.RemoveKey(item);
}