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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.
//
//
// Description: TextCompositionEventArgs class
//
//
using System;
namespace System.Windows.Input
{
/// <summary>
/// The TextCompositionEventArgs class contains a text representation of
/// input.
/// </summary>
public class TextCompositionEventArgs : InputEventArgs
{
/// <summary>
/// Constructs an instance of the TextInputEventArgs class.
/// </summary>
/// <param name="inputDevice">
/// The input device to associate with this event.
/// </param>
/// <param name="composition">
/// The TextComposition object that contains the composition text and the composition state.
/// </param>
public TextCompositionEventArgs(InputDevice inputDevice, TextComposition composition) : base(inputDevice, Environment.TickCount)
{
ArgumentNullException.ThrowIfNull(composition);
_composition = composition;
}
/// <summary>
/// The text composition that was provided.
/// </summary>
/// <ExternalAPI Inherit="true"/>
public TextComposition TextComposition
{
get {return _composition;}
}
/// <summary>
/// The result text that was provided as input.
/// </summary>
/// <ExternalAPI Inherit="true"/>
public string Text
{
get {return _composition.Text;}
}
/// <summary>
/// The result system text that was provided as input.
/// </summary>
/// <ExternalAPI Inherit="true"/>
public string SystemText
{
get {return _composition.SystemText;}
}
/// <summary>
/// The result control text that was provided as input.
/// </summary>
/// <ExternalAPI Inherit="true"/>
public string ControlText
{
get {return _composition.ControlText;}
}
/// <summary>
/// The mechanism used to call the type-specific handler on the
/// target.
/// </summary>
/// <param name="genericHandler">
/// The generic handler to call in a type-specific way.
/// </param>
/// <param name="genericTarget">
/// The target to call the handler on.
/// </param>
/// <ExternalAPI/>
protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
{
TextCompositionEventHandler handler = (TextCompositionEventHandler) genericHandler;
handler(genericTarget, this);
}
// The target TextComposition object of this event.
private TextComposition _composition;
}
}
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