■ 커스텀 포커스 범위를 사용하는 방법을 보여준다.
▶ CustomFocusScope.cs
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using System.Windows; using System.Windows.Input; using System.Windows.Media; namespace TestProject { /// <summary> /// 커스텀 포커스 범위 /// </summary> public static class CustomFocusScope { //////////////////////////////////////////////////////////////////////////////////////////////////// Dependency Property ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 커스텀 포커스 스코프 여부 첨부 속성 - IsCustomFocusScopeProperty /// <summary> /// 커스텀 포커스 스코프 여부 첨부 속성 /// </summary> public static readonly DependencyProperty IsCustomFocusScopeProperty = DependencyProperty.RegisterAttached ( "IsCustomFocusScope", typeof(bool), typeof(CustomFocusScope), new UIPropertyMetadata(false, IsCustomFocusScopePropertyChangedCallback) ); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 커스텀 포커스 범위 여부 구하기 - GetIsCustomFocusScope(element) /// <summary> /// 커스텀 포커스 범위 여부 구하기 /// </summary> /// <param name="element">엘리먼트</param> /// <returns>커스텀 포커스 범위 여부</returns> public static bool GetIsCustomFocusScope(UIElement element) { return (bool)element.GetValue(IsCustomFocusScopeProperty); } #endregion #region 커스텀 포커스 범위 여부 설정하기 - SetIsCustomFocusScope(element, value) /// <summary> /// 커스텀 포커스 범위 여부 설정하기 /// </summary> /// <param name="element">엘리먼트</param> /// <param name="value">커스텀 포커스 범위 여부</param> public static void SetIsCustomFocusScope(UIElement element, bool value) { element.SetValue(IsCustomFocusScopeProperty, value); } #endregion #region 범위 내에서 활성 엘리먼트 포커스 설정하기 - SetFocusOnActiveElementInScope(focusScopeElement) /// <summary> /// 범위 내에서 활성 엘리먼트 포커스 설정하기 /// </summary> /// <param name="focusScopeElement">포커스 범위 엘리먼트</param> public static void SetFocusOnActiveElementInScope(UIElement focusScopeElement) { IInputElement focusedElement = FocusManager.GetFocusedElement(focusScopeElement); if(focusedElement != null) { Keyboard.Focus(focusedElement); } else { focusScopeElement.MoveFocus(new TraversalRequest(FocusNavigationDirection.First)); } } #endregion //////////////////////////////////////////////////////////////////////////////// Private #region 커스텀 포커스 범위 여부 속성 변경시 콜백 처리하기 - IsCustomFocusScopePropertyChangedCallback(d, e) /// <summary> /// 커스텀 포커스 범위 여부 속성 변경시 콜백 처리하기 /// </summary> /// <param name="d">의존 객체</param> /// <param name="e">이벤트 인자</param> private static void IsCustomFocusScopePropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e) { UIElement element = d as UIElement; if(element == null) { return; } if((bool)e.NewValue) { FocusManager.SetIsFocusScope(element, true); element.GotKeyboardFocus += element_GotKeyboardFocus; } else { FocusManager.SetIsFocusScope(element, false); element.GotKeyboardFocus -= element_GotKeyboardFocus; } } #endregion #region 엘리먼트 키보드 포커스 획득시 처리하기 - element_GotKeyboardFocus(sender, e) /// <summary> /// 엘리먼트 키보드 포커스 획득시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private static void element_GotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e) { IInputElement focusedElement = e.NewFocus; for(DependencyObject d = focusedElement as DependencyObject; d != null; d = VisualTreeHelper.GetParent(d)) { if(FocusManager.GetIsFocusScope(d)) { d.SetValue(FocusManager.FocusedElementProperty, focusedElement); if(!(bool)d.GetValue(IsCustomFocusScopeProperty)) { break; } } } } #endregion } } |
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="커스텀 포커스 범위 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <Window.Resources> <Style TargetType="GroupBox"> <Setter Property="Background" Value="Transparent" /> <Setter Property="KeyboardNavigation.TabNavigation" Value="Cycle" /> <Setter Property="KeyboardNavigation.ControlTabNavigation" Value="Once" /> </Style> </Window.Resources> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="150" /> <RowDefinition Height="*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="*" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <ToolBar Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="3"> <Button Margin="10 0 0 0" Command="Copy"> 복사 </Button> <Button Margin="10 0 0 0" Command="Cut"> 잘라내기 </Button> <Button Margin="10 0 0 0" Command="Paste"> 붙여넣기 </Button> </ToolBar> <TextBox Grid.Row="1" Grid.ColumnSpan="3" Margin="10" BorderThickness="1" BorderBrush="Black" Padding="10" AcceptsReturn="True"> A free text area </TextBox> <GroupBox Name="groupBox1" Grid.Row="2" Grid.Column="0" Header="포커스 범위 없음"> <StackPanel Margin="10"> <Button Height="30">A</Button> <Button Height="30">B</Button> <Button Height="30">C</Button> <TextBox Margin="0 10 0 0" Height="25" VerticalContentAlignment="Center" /> <CheckBox Margin="0 10 0 0">CheckBox</CheckBox> </StackPanel> </GroupBox> <GroupBox Name="groupBox2" Grid.Row="2" Grid.Column="1" Header="WPF 포커스 범위" FocusManager.IsFocusScope="True"> <StackPanel Margin="10"> <Button Height="30">A</Button> <Button Height="30">B</Button> <Button Height="30">C</Button> <TextBox Margin="0 10 0 0" Height="25" VerticalContentAlignment="Center" /> <CheckBox Margin="0 10 0 0">CheckBox</CheckBox> </StackPanel> </GroupBox> <GroupBox Name="groupBox3" Grid.Row="2" Grid.Column="2" Header="커스텀 포커스 범위" local:CustomFocusScope.IsCustomFocusScope="True"> <StackPanel Margin="10"> <Button Height="30">A</Button> <Button Height="30">B</Button> <Button Height="30">C</Button> <TextBox Margin="0 10 0 0" Height="25" VerticalContentAlignment="Center" /> <CheckBox Margin="0 10 0 0">CheckBox</CheckBox> </StackPanel> </GroupBox> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System.Reflection; using System.Windows; using System.Windows.Input; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.groupBox1.MouseDown += groupBox1_MouseDown; this.groupBox2.MouseDown += groupBox2_MouseDown; this.groupBox3.MouseDown += groupBox3_MouseDown; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 그룹 박스 1 마우스 DOWN 처리하기 - groupBox1_MouseDown(sender, e) /// <summary> /// 그룹 박스 1 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void groupBox1_MouseDown(object sender, MouseButtonEventArgs e) { object keyboardNavigation = typeof(KeyboardNavigation).InvokeMember ( "Current", BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.GetProperty, null, null, null ); object activeElement = typeof(KeyboardNavigation).InvokeMember ( "GetActiveElement", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.InvokeMethod, null, keyboardNavigation, new object[] { this.groupBox1 } ); IInputElement focusedElement = activeElement as IInputElement; if(focusedElement != null) { Keyboard.Focus(focusedElement); } else { this.groupBox1.MoveFocus(new TraversalRequest(FocusNavigationDirection.First)); } } #endregion #region 그룹 박스 2 마우스 DOWN 처리하기 - groupBox2_MouseDown(sender, e) /// <summary> /// 그룹 박스 2 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void groupBox2_MouseDown(object sender, MouseButtonEventArgs e) { IInputElement focusedElement = FocusManager.GetFocusedElement(this.groupBox2); if(focusedElement != null) { Keyboard.Focus(focusedElement); } else { this.groupBox2.MoveFocus(new TraversalRequest(FocusNavigationDirection.First)); } } #endregion #region 그룹 박스 3 마우스 DOWN 처리하기 - groupBox3_MouseDown(sender, e) /// <summary> /// 그룹 박스 3 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void groupBox3_MouseDown(object sender, MouseButtonEventArgs e) { CustomFocusScope.SetFocusOnActiveElementInScope(this.groupBox3); } #endregion } } |
