public TimelineViewModelBase(TimelineModelBase model)
{
this._model = model;
this._timeline = new ObservableCollection <StatusViewModel>();
DispatcherHolder.Enqueue(this.InitializeCollection, DispatcherPriority.Background);
this.CompositeDisposable.Add(
new EventListener <Action <bool> >(
h => model.InvalidationStateChanged += h,
h => model.InvalidationStateChanged -= h,
s => this.IsLoading = s));
this.CompositeDisposable.Add(() =>
{
if (_listener != null)
{
_listener.Dispose();
}
});
this.CompositeDisposable.Add(
this.ListenPropertyChanged(() => this.CurrentAccounts)
.ObserveOnDispatcher()
.Select(_ => this.CurrentAccounts.ToArray())
.Subscribe(a => _timeline.ForEach(s => s.BindingAccounts = a)));
this.IsLoading = true;
this._model.InvalidateTimeline();
}
public StatusesViewModel(TimelineModelBase model, IReactiveProperty <Status> inReplyTo, TabsModel tabs, bool streamingOnStartup = false)
{
this.model = model;
this.inReplyTo = inReplyTo;
this.tabs = tabs;
IsStreaming = this.model.StreamingStarted.ToReadOnlyReactiveProperty();
IsStreamingAvailable = this.model.IsStreamingAvailable;
Statuses = this.model.ToReadOnlyReactiveCollection(s => new StatusViewModel(s));
ReloadCommand = new AsyncReactiveCommand()
.WithSubscribe(() => this.model.FetchPreviousAsync());
ReloadOlderCommand = new AsyncReactiveCommand()
.WithSubscribe(() => this.model.FetchNextAsync());
ToggleStreamingCommand = Observable.Repeat(IsStreamingAvailable, 1).ToReactiveCommand()
.WithSubscribe(() => this.model.StreamingStarting.Value = !IsStreaming.Value);
var IsStatusSelected = SelectedStatus.Select(x => x != null);
OpenCommand = IsStatusSelected.ToReactiveCommand()
.WithSubscribe(() => Process.Start(SelectedStatus.Value.Status.Url ?? SelectedStatus.Value.Status.Reblog.Url));
FavouriteCommand = IsStatusSelected.ToAsyncReactiveCommand()
.WithSubscribe(() => this.model.FavouriteAsync(SelectedStatus.Value.Status.Id));
ReblogCommand = IsStatusSelected.ToAsyncReactiveCommand()
.WithSubscribe(() => this.model.ReblogAsync(SelectedStatus.Value.Status.Id));
ReplyCommand = IsStatusSelected.ToReactiveCommand()
.WithSubscribe(() => this.inReplyTo.Value = SelectedStatus.Value.Status);
DeleteCommand = IsStatusSelected.ToAsyncReactiveCommand()
.WithSubscribe(() => this.model.DeleteAsync(SelectedStatus.Value.Status.Id));
OpenAccountTabCommand = IsStatusSelected.ToReactiveCommand()
.WithSubscribe(() =>
{
Account account = SelectedStatus.Value.OriginalStatus.Account;
this.tabs.SwitchToOrOpen(new AccountTabParameters()
{
Name = $"user: {account.AccountName}", Id = account.Id
});
});
this.model.StreamingStarting.Value = streamingOnStartup;
ReloadCommand.Execute();
}
public TimelineViewModelBase(TimelineModelBase model)
{
this._model = model;
this._timeline = new ObservableCollection <StatusViewModel>();
DispatcherHelper.UIDispatcher.InvokeAsync(this.InitializeCollection, DispatcherPriority.Background);
this.CompositeDisposable.Add(
new EventListener <Action <bool> >(
h => model.IsLoadingChanged += h,
h => model.IsLoadingChanged -= h,
isLoading =>
{
if (isLoading)
{
// send immediate
// ! MUST BE DispatcherPriority.Send !
// for update binding value before beginning rendering.
DispatcherHelper.UIDispatcher.InvokeAsync(() =>
{
this.IsLoading = true;
}, DispatcherPriority.Send);
}
else
{
// wait for dispatcher
DispatcherHelper.UIDispatcher.InvokeAsync(() =>
{
// this clause is invoked later, so re-check currrent value
if (model.IsLoading == false)
{
this.IsLoading = false;
}
}, DispatcherPriority.ContextIdle);
}
}));
this.CompositeDisposable.Add(() =>
{
if (_listener != null)
{
_listener.Dispose();
}
});
this.CompositeDisposable.Add(
this.ListenPropertyChanged(() => this.CurrentAccounts,
e => DispatcherHelper.UIDispatcher.InvokeAsync(() =>
{
var a = this.CurrentAccounts.ToArray();
this._timeline.ForEach(s => s.BindingAccounts = a);
})));
this.CompositeDisposable.Add(
Setting.ScrollLockStrategy.ListenValueChanged(
v =>
{
RaisePropertyChanged(() => this.IsScrollLockEnabled);
RaisePropertyChanged(() => this.IsScrollLockOnlyScrolled);
}));
this.CompositeDisposable.Add(
Setting.IsAnimateScrollToNewTweet.ListenValueChanged(
v => RaisePropertyChanged(() => IsAnimationEnabled)));
this.CompositeDisposable.Add(
Setting.IsScrollByPixel.ListenValueChanged(
v =>
{
RaisePropertyChanged(() => ScrollUnit);
RaisePropertyChanged(() => IsAnimationEnabled);
}));
this._model.InvalidateTimeline();
}
