feat: place caret inside inserted function parentheses\n\n- Add CaretIndex to MainViewModel and bind TextBox.CaretIndex\n- After function insertion, set caret to inside parentheses\n- Return focus to input box for immediate typing
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3 changed files with 15 additions and 1 deletions
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@ -35,6 +35,10 @@ public partial class MainViewModel : ViewModelBase
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[ObservableProperty]
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private int _selectedHistoryIndex = -1;
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// Caret position in the input TextBox
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[ObservableProperty]
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private int _caretIndex;
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public ObservableCollection<HistoryItem> History { get; }
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public ObservableCollection<VariableItem> Variables { get; }
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@ -61,6 +65,11 @@ public partial class MainViewModel : ViewModelBase
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if (string.IsNullOrWhiteSpace(functionDefintionItem.FunctionName))
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return;
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InsertToken(functionDefintionItem.FunctionName + "()");
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// Place caret inside the parentheses
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if (!string.IsNullOrEmpty(InputText))
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{
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CaretIndex = Math.Max(0, InputText.Length - 1);
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}
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// Close the functions flyout after insertion for smoother UX
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IsFunctionsPanelOpen = false;
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}
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@ -183,7 +183,9 @@
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<TextBlock FontFamily="{StaticResource MDI}" Text="{x:Static m:IconFont.Function}" />
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</Button>
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<TextBox Grid.Column="2" Text="{Binding InputText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinHeight="44"
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<TextBox x:Name="InputBox" Grid.Column="2" Text="{Binding InputText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
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CaretIndex="{Binding CaretIndex, Mode=TwoWay}"
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MinHeight="44"
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AutomationProperties.Name="Expression input"
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Watermark="Type an expression (e.g., 2 + 2)">
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<InputElement.KeyBindings>
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@ -94,6 +94,9 @@ public partial class MainView : UserControl
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_vm?.InsertFunctionCommand.CanExecute(item) == true)
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{
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_vm.InsertFunctionCommand.Execute(item);
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// Return focus to the input box so the caret is active
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var input = this.FindControl<TextBox>("InputBox");
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input?.Focus();
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e.Handled = true;
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}
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}
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