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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.ComponentModel;
using System.Windows.Controls.Primitives;
using System.Windows.Input;
using MS.Internal.KnownBoxes;
using MS.Internal.Telemetry.PresentationFramework;
// Disable CS3001: Warning as Error: not CLS-compliant
#pragma warning disable 3001
namespace System.Windows.Controls
{
#region CheckBox class
/// <summary>
/// Use a CheckBox to give the user an option, such as true/false.
/// CheckBox allow the user to choose from a list of options.
/// CheckBox controls let the user pick a combination of options.
/// </summary>
[DefaultEvent("CheckStateChanged")]
[Localizability(LocalizationCategory.CheckBox)]
public class CheckBox : ToggleButton
{
#region Constructors
static CheckBox()
{
// Set the default Style
DefaultStyleKeyProperty.OverrideMetadata(typeof(CheckBox), new FrameworkPropertyMetadata(typeof(CheckBox)));
_dType = DependencyObjectType.FromSystemTypeInternal(typeof(CheckBox));
KeyboardNavigation.AcceptsReturnProperty.OverrideMetadata(typeof(CheckBox), new FrameworkPropertyMetadata(BooleanBoxes.FalseBox));
ControlsTraceLogger.AddControl(TelemetryControls.CheckBox);
}
/// <summary>
/// Default CheckBox constructor
/// </summary>
/// <remarks>
/// Automatic determination of current Dispatcher. Use alternative constructor
/// that accepts a Dispatcher for best performance.
/// </remarks>
public CheckBox() : base()
{
}
#endregion
#region Override methods
/// <summary>
/// Creates AutomationPeer (<see cref="UIElement.OnCreateAutomationPeer"/>)
/// </summary>
protected override System.Windows.Automation.Peers.AutomationPeer OnCreateAutomationPeer()
{
return new System.Windows.Automation.Peers.CheckBoxAutomationPeer(this);
}
/// <summary>
/// This is the method that responds to the KeyDown event.
/// </summary>
/// <param name="e"></param>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
// Add aditional keys "+" and "-" when we are not in IsThreeState mode
if (!IsThreeState)
{
if (e.Key == Key.OemPlus || e.Key == Key.Add)
{
e.Handled = true;
ClearValue(IsPressedPropertyKey);
SetCurrentValueInternal(IsCheckedProperty, BooleanBoxes.TrueBox);
}
else if (e.Key == Key.OemMinus || e.Key == Key.Subtract)
{
e.Handled = true;
ClearValue(IsPressedPropertyKey);
SetCurrentValueInternal(IsCheckedProperty, BooleanBoxes.FalseBox);
}
}
}
/// <summary>
/// The Access key for this control was invoked.
/// </summary>
/// <param name="e"></param>
protected override void OnAccessKey(AccessKeyEventArgs e)
{
if (!IsKeyboardFocused)
{
Focus();
}
base.OnAccessKey(e);
}
#endregion
#region Data
#endregion
#region DTypeThemeStyleKey
// Returns the DependencyObjectType for the registered ThemeStyleKey's default
// value. Controls will override this method to return approriate types.
internal override DependencyObjectType DTypeThemeStyleKey
{
get { return _dType; }
}
private static DependencyObjectType _dType;
#endregion DTypeThemeStyleKey
}
#endregion CheckBox class
}
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