internal static IDisposable BindToButton <T>(this ReactiveCommand <T> command, T value, ToolStripMenuItem button)
{
CompositeDisposable disposable = new CompositeDisposable();
command
.CanExecuteChangedAsObservable()
.ToReadOnlyReactivePropertySlim(mode: ReactivePropertyMode.RaiseLatestValueOnSubscribe)
.Subscribe(_ => button.Enabled = command.CanExecute())
.AddTo(disposable);
Observable.FromEvent <EventHandler, EventArgs>(
h => (s, e) => h(e),
h => button.Click += h,
h => button.Click -= h
)
.Subscribe(_ => command.Execute(value))
.AddTo(disposable);
return(disposable);
}
internal static IDisposable BindToCheckBox(this ReactiveCommand command, CheckBox checkBox)
{
CompositeDisposable disposable = new CompositeDisposable();
command
.CanExecuteChangedAsObservable()
.ToReadOnlyReactivePropertySlim(mode: ReactivePropertyMode.RaiseLatestValueOnSubscribe)
.Subscribe(_ => checkBox.Enabled = command.CanExecute())
.AddTo(disposable);
Observable.FromEvent <EventHandler, EventArgs>(
h => (s, e) => h(e),
h => checkBox.Click += h,
h => checkBox.Click -= h
)
.Subscribe(_ => command.Execute())
.AddTo(disposable);
return(disposable);
}
public SearchPageViewModel(
IScheduler scheduler,
ApplicationLayoutManager applicationLayoutManager,
NiconicoSession niconicoSession,
SearchProvider searchProvider,
PageManager pageManager,
SearchHistoryRepository searchHistoryRepository
)
{
_scheduler = scheduler;
ApplicationLayoutManager = applicationLayoutManager;
NiconicoSession = niconicoSession;
SearchProvider = searchProvider;
PageManager = pageManager;
_searchHistoryRepository = searchHistoryRepository;
HashSet <string> HistoryKeyword = new HashSet <string>();
foreach (var item in _searchHistoryRepository.ReadAllItems().OrderByDescending(x => x.LastUpdated))
{
if (HistoryKeyword.Contains(item.Keyword))
{
continue;
}
SearchHistoryItems.Add(new SearchHistoryListItemViewModel(item, this));
HistoryKeyword.Add(item.Keyword);
}
SearchText = new ReactiveProperty <string>(_LastKeyword)
.AddTo(_CompositeDisposable);
TargetListItems = new List <SearchTarget>()
{
SearchTarget.Keyword,
SearchTarget.Tag,
SearchTarget.Niconama,
};
SelectedTarget = new ReactiveProperty <SearchTarget>(_LastSelectedTarget)
.AddTo(_CompositeDisposable);
DoSearchCommand = new ReactiveCommand()
.AddTo(_CompositeDisposable);
#if DEBUG
SearchText.Subscribe(x =>
{
Debug.WriteLine($"検索：{x}");
});
#endif
#if DEBUG
DoSearchCommand.CanExecuteChangedAsObservable()
.Subscribe(x =>
{
Debug.WriteLine(DoSearchCommand.CanExecute());
});
#endif
IsNavigationFailed = new ReactiveProperty <bool>();
NavigationFailedReason = new ReactiveProperty <string>();
}