Julien Lebosquain
7 days ago
committed by
GitHub
GitHub
17 changed files with 109 additions and 165 deletions
@ -1,10 +1,24 @@ |
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using System; |
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using System.Threading; |
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namespace Avalonia.Controls |
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namespace Avalonia.Controls; |
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/// <summary>
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/// Represents the event arguments of <see cref="IResourceHost.ResourcesChanged"/>.
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/// The <see cref="SequenceNumber"/> identifies the changes.
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/// </summary>
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/// <param name="SequenceNumber">The sequence number used to identify the changes.</param>
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/// <remarks>
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/// For performance reasons, this type is a struct.
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/// Avoid using a default instance of this type or its default constructor, call <see cref="Create"/> instead.
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/// </remarks>
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public readonly record struct ResourcesChangedEventArgs(int SequenceNumber) |
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{ |
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// TODO12: change this to be a struct, remove ResourcesChangedToken
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public class ResourcesChangedEventArgs : EventArgs |
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{ |
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public static new readonly ResourcesChangedEventArgs Empty = new ResourcesChangedEventArgs(); |
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} |
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private static int s_lastSequenceNumber; |
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/// <summary>
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/// Creates a new instance of <see cref="ResourcesChangedEventArgs"/> with an auto-incremented sequence number.
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/// </summary>
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/// <returns></returns>
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public static ResourcesChangedEventArgs Create() |
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=> new(Interlocked.Increment(ref s_lastSequenceNumber)); |
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} |
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@ -1,45 +0,0 @@ |
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using System; |
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using Avalonia.LogicalTree; |
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namespace Avalonia.Controls; |
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internal static class ResourcesChangedHelper |
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{ |
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internal static void NotifyHostedResourcesChanged(this IResourceHost host, ResourcesChangedToken token) |
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{ |
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if (host is IResourceHost2 host2) |
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host2.NotifyHostedResourcesChanged(token); |
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else |
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host.NotifyHostedResourcesChanged(ResourcesChangedEventArgs.Empty); |
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} |
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internal static void NotifyResourcesChanged(this ILogical logical, ResourcesChangedToken token) |
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{ |
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if (logical is StyledElement styledElement) |
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styledElement.NotifyResourcesChanged(token); |
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else |
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logical.NotifyResourcesChanged(ResourcesChangedEventArgs.Empty); |
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} |
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internal static void SubscribeToResourcesChanged( |
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this IResourceHost host, |
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EventHandler<ResourcesChangedEventArgs> handler, |
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EventHandler<ResourcesChangedToken> handler2) |
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{ |
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if (host is IResourceHost2 host2) |
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host2.ResourcesChanged2 += handler2; |
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else |
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host.ResourcesChanged += handler; |
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} |
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internal static void UnsubscribeFromResourcesChanged( |
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this IResourceHost host, |
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EventHandler<ResourcesChangedEventArgs> handler, |
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EventHandler<ResourcesChangedToken> handler2) |
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{ |
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if (host is IResourceHost2 host2) |
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host2.ResourcesChanged2 -= handler2; |
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else |
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host.ResourcesChanged -= handler; |
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} |
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} |
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@ -1,11 +0,0 @@ |
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using System.Threading; |
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namespace Avalonia.Controls; |
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internal record struct ResourcesChangedToken(int SequenceNumber) |
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{ |
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private static int s_lastSequenceNumber; |
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public static ResourcesChangedToken Create() |
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=> new(Interlocked.Increment(ref s_lastSequenceNumber)); |
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} |
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