Max Katz
5 years ago
5 changed files with 127 additions and 5 deletions
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using Avalonia.Input; |
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using Avalonia.Interactivity; |
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#nullable enable |
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namespace Avalonia.Controls |
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{ |
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/// <summary>
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/// Provides event data for the ContextRequested event.
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/// </summary>
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public class ContextRequestedEventArgs : RoutedEventArgs |
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{ |
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private readonly PointerEventArgs? _pointerEventArgs; |
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/// <summary>
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/// Initializes a new instance of the ContextRequestedEventArgs class.
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/// </summary>
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public ContextRequestedEventArgs() |
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: base(Control.ContextRequestedEvent) |
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{ |
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} |
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/// <inheritdoc cref="ContextRequestedEventArgs()" />
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public ContextRequestedEventArgs(PointerEventArgs pointerEventArgs) |
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: this() |
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{ |
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_pointerEventArgs = pointerEventArgs; |
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} |
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/// <summary>
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/// Gets the x- and y-coordinates of the pointer position, optionally evaluated against a coordinate origin of a supplied <see cref="Control"/>.
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/// </summary>
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/// <param name="relativeTo">
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/// Any <see cref="Control"/>-derived object that is connected to the same object tree.
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/// To specify the object relative to the overall coordinate system, use a relativeTo value of null.
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/// </param>
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/// <param name="point">
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/// A <see cref="Point"/> that represents the current x- and y-coordinates of the mouse pointer position.
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/// If null was passed as relativeTo, this coordinate is for the overall window.
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/// If a relativeTo value other than null was passed, this coordinate is relative to the object referenced by relativeTo.
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/// </param>
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/// <returns>
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/// true if the context request was initiated by a pointer device; otherwise, false.
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/// </returns>
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public bool TryGetPosition(Control? relativeTo, out Point point) |
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{ |
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if (_pointerEventArgs is null) |
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{ |
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point = default; |
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return false; |
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} |
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point = _pointerEventArgs.GetPosition(relativeTo); |
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return true; |
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} |
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} |
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} |
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