protected override Task ListPageNavigatedToAsync(CancellationToken cancelToken, NavigatedToEventArgs e, Dictionary <string, object> viewModelState)
{
if (e.Parameter is Guid)
{
var feedGroupId = (Guid)e.Parameter;
FeedGroup = HohoemaApp.FeedManager.GetFeedGroup(feedGroupId);
}
else if (e.Parameter is string)
{
var feedGroupId = Guid.Parse(e.Parameter as string);
FeedGroup = HohoemaApp.FeedManager.GetFeedGroup(feedGroupId);
}
if (FeedGroup == null)
{
// 削除済み？
PageManager.OpenPage(HohoemaPageType.FeedGroupManage);
}
else
{
UpdateTitle(FeedGroup.Label);
LastUpdate.Value = FeedGroup.UpdateTime;
AllMarkAsReadCommand.RaiseCanExecuteChanged();
}
return(Task.CompletedTask);
}
public FeedVideoListPageViewModel(HohoemaApp hohoemaApp, PageManager pageManager, Views.Service.MylistRegistrationDialogService mylistDialogService)
: base(hohoemaApp, pageManager, mylistDialogService, isRequireSignIn: true)
{
LastUpdate = new ReactiveProperty <DateTime>();
AllMarkAsReadCommand = new DelegateCommand(async() =>
{
FeedGroup.ForceMarkAsRead();
await HohoemaApp.FeedManager.SaveOne(FeedGroup);
AllMarkAsReadCommand.RaiseCanExecuteChanged();
}
, () =>
{
return((FeedGroup?.GetUnreadItemCount() ?? 0) > 0);
});
SelectedItemsMarkAsReadCommand = SelectedItems.ToCollectionChanged()
.Select(x => SelectedItems.Count(y => y.IsUnread.Value) > 0)
.ToReactiveCommand(false)
.AddTo(_CompositeDisposable);
SelectedItemsMarkAsReadCommand.Subscribe(async _ =>
{
foreach (var item in SelectedItems)
{
await HohoemaApp.FeedManager.MarkAsRead(item.VideoId);
await HohoemaApp.FeedManager.MarkAsRead(item.RawVideoId);
}
ClearSelection();
})
.AddTo(_CompositeDisposable);
OpenFeedGroupPageCommand = new DelegateCommand(() =>
{
if (FeedGroup != null)
{
PageManager.OpenPage(HohoemaPageType.FeedGroup, FeedGroup.Id);
}
});
}
