public void FocusBottom() { if (this.Timeline.Count == 0) return; FocusedStatus = this.Timeline[this.Timeline.Count - 1]; }
public void FocusTop() { if (this.Timeline.Count == 0) return; FocusedStatus = this.Timeline[0]; }
public void FocusDown() { if (Timeline.Count == 0) return; var index = FocusedStatus == null ? 0 : this.Timeline.IndexOf(FocusedStatus) + 1; if (index >= this.Timeline.Count) return; FocusedStatus = this.Timeline[index]; }
public void FocusUp() { if (Timeline.Count == 0 || FocusedStatus == null) return; var index = this.Timeline.IndexOf(FocusedStatus) - 1; FocusedStatus = index < 0 ? null : this.Timeline[index]; }
/// <summary> /// Constructor /// </summary> public InputAreaViewModel() { _provider = new InputAreaSuggestItemProvider(); #region Account control _accountSelectionFlip = new AccountSelectionFlipViewModel(); _accountSelectionFlip.Closed += () => { // After selection accounts, return focus to text box // if input area is opened. if (IsOpening) { FocusToTextBox(); } }; var accountSelectReflecting = false; _accountSelectionFlip.SelectedAccountsChanged += () => { if (!_isSuppressAccountChangeRelay) { // write-back accountSelectReflecting = true; InputAreaModel.BindingAccounts.Clear(); _accountSelectionFlip.SelectedAccounts .ForEach(InputAreaModel.BindingAccounts.Add); accountSelectReflecting = false; _baseSelectedAccounts = InputAreaModel.BindingAccounts.Select(_ => _.Id).ToArray(); } InputInfo.Accounts = AccountSelectionFlip.SelectedAccounts; RaisePropertyChanged(() => AuthInfoGridRowColumn); UpdateTextCount(); RaisePropertyChanged(() => IsPostLimitPredictionEnabled); }; CompositeDisposable.Add(_accountSelectionFlip); CompositeDisposable.Add( new CollectionChangedEventListener( InputAreaModel.BindingAccounts, (_, __) => { RaisePropertyChanged(() => IsPostLimitPredictionEnabled); if (accountSelectReflecting) return; _baseSelectedAccounts = InputAreaModel.BindingAccounts .Select(a => a.Id) .ToArray(); ApplyBaseSelectedAccounts(); UpdateTextCount(); })); #endregion CompositeDisposable.Add(_bindingHashtags = ViewModelHelperRx.CreateReadOnlyDispatcherCollectionRx( InputAreaModel.BindingHashtags, _ => new BindHashtagViewModel(_, () => UnbindHashtag(_)), DispatcherHelper.UIDispatcher)); CompositeDisposable.Add(_bindingHashtags .ListenCollectionChanged() .Subscribe(_ => RaisePropertyChanged(() => IsBindingHashtagExisted))); _bindableHashtagCandidates = new DispatcherCollection<BindHashtagViewModel>(DispatcherHelper.UIDispatcher); CompositeDisposable.Add(_bindableHashtagCandidates .ListenCollectionChanged() .Subscribe(_ => RaisePropertyChanged(() => IsBindableHashtagExisted))); CompositeDisposable.Add(_draftedInputs = ViewModelHelperRx.CreateReadOnlyDispatcherCollectionRx( InputAreaModel.Drafts, _ => new TweetInputInfoViewModel(this, _, vm => InputAreaModel.Drafts.Remove(vm)), DispatcherHelper.UIDispatcher)); CompositeDisposable.Add(_draftedInputs .ListenCollectionChanged() .Subscribe(_ => { RaisePropertyChanged(() => DraftCount); RaisePropertyChanged(() => IsDraftsExisted); })); CompositeDisposable.Add(_bindingAuthInfos = ViewModelHelperRx.CreateReadOnlyDispatcherCollectionRx( InputAreaModel.BindingAccounts, account => new TwitterAccountViewModel(account), DispatcherHelper.UIDispatcher)); CompositeDisposable.Add(_bindingAuthInfos .ListenCollectionChanged() .Subscribe(_ => RaisePropertyChanged(() => IsBindingAuthInfoExisted))); CompositeDisposable.Add( new EventListener<Action<IEnumerable<TwitterAccount>, string, CursorPosition, TwitterStatus>>( h => InputAreaModel.SetTextRequested += h, h => InputAreaModel.SetTextRequested -= h, (infos, body, cursor, inReplyTo) => { OpenInput(false); if (!CheckClearInput(body)) return; if (infos != null) { OverrideSelectedAccounts(infos); } if (inReplyTo != null) { Task.Run(async () => InReplyTo = new StatusViewModel(await StatusModel.Get(inReplyTo))); } switch (cursor) { case CursorPosition.Begin: Messenger.Raise(new TextBoxSetCaretMessage(0)); break; case CursorPosition.End: Messenger.Raise(new TextBoxSetCaretMessage(InputText.Length)); break; } })); CompositeDisposable.Add( new EventListener<Action<IEnumerable<TwitterAccount>, TwitterUser>>( _ => InputAreaModel.SendDirectMessageRequested += _, _ => InputAreaModel.SendDirectMessageRequested -= _, (infos, user) => { OpenInput(false); CheckClearInput(); OverrideSelectedAccounts(infos); DirectMessageTo = new UserViewModel(user); })); CompositeDisposable.Add(InitPostLimitPrediction()); _geoWatcher = new GeoCoordinateWatcher(GeoPositionAccuracy.Default); _geoWatcher.StatusChanged += (_, e) => { if (e.Status != GeoPositionStatus.Ready) { IsLocationEnabled = true; } else { IsLocationEnabled = false; AttachedLocation = null; } }; CompositeDisposable.Add(_geoWatcher); _geoWatcher.Start(); }
public void FocusDown() { if (FocusedStatus == null) { FocusTop(); return; } var index = this.Timeline.IndexOf(FocusedStatus) + 1; if (index >= this.Timeline.Count) return; FocusedStatus = this.Timeline[index]; }