Tom Edwards
4 years ago
committed by
GitHub
GitHub
119 changed files with 1450 additions and 815 deletions
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namespace Avalonia.Layout; |
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/// <summary>
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/// Provides access to layout information of a control.
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/// </summary>
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public static class LayoutInformation |
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{ |
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/// <summary>
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/// Gets the available size constraint passed in the previous layout pass.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <returns>Previous control measure constraint, if any.</returns>
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public static Size? GetPreviousMeasureConstraint(Layoutable control) |
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{ |
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return control.PreviousMeasure; |
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} |
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/// <summary>
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/// Gets the control bounds used in the previous layout arrange pass.
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/// </summary>
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/// <param name="control">The control.</param>
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/// <returns>Previous control arrange bounds, if any.</returns>
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public static Rect? GetPreviousArrangeBounds(Layoutable control) |
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{ |
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return control.PreviousArrange; |
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} |
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} |
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using Avalonia.Automation.Peers; |
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namespace Avalonia.Controls.Automation.Peers |
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{ |
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public class SliderAutomationPeer : RangeBaseAutomationPeer |
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{ |
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public SliderAutomationPeer(Slider owner) : base(owner) |
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{ |
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} |
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override protected string GetClassNameCore() |
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{ |
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return "Slider"; |
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} |
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override protected AutomationControlType GetAutomationControlTypeCore() |
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{ |
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return AutomationControlType.Slider; |
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} |
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} |
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} |
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@ -0,0 +1,83 @@ |
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using System; |
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using System.Threading.Tasks; |
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using Avalonia.Browser.Interop; |
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namespace Avalonia.Browser; |
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public class BrowserPlatformOptions |
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{ |
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/// <summary>
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/// Defines paths where avalonia modules and service locator should be resolved.
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/// If null, default path resolved depending on the backend (browser or blazor) is used.
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/// </summary>
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public Func<string, string>? FrameworkAssetPathResolver { get; set; } |
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} |
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public static class BrowserAppBuilder |
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{ |
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/// <summary>
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/// Configures browser backend, loads avalonia javascript modules and creates a single view lifetime from the passed <see cref="mainDivId"/> parameter.
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/// </summary>
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/// <param name="builder">Application builder.</param>
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/// <param name="mainDivId">ID of the html element where avalonia content should be rendered.</param>
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/// <param name="options">Browser backend specific options.</param>
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public static async Task StartBrowserAppAsync(this AppBuilder builder, string mainDivId, BrowserPlatformOptions? options = null) |
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{ |
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if (mainDivId is null) |
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{ |
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throw new ArgumentNullException(nameof(mainDivId)); |
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} |
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builder = await PreSetupBrowser(builder, options); |
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var lifetime = new BrowserSingleViewLifetime(); |
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builder |
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.AfterSetup(_ => |
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{ |
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lifetime.View = new AvaloniaView(mainDivId); |
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}) |
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.SetupWithLifetime(lifetime); |
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} |
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/// <summary>
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/// Loads avalonia javascript modules and configures browser backend.
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/// </summary>
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/// <param name="builder">Application builder.</param>
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/// <param name="options">Browser backend specific options.</param>
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/// <remarks>
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/// This method doesn't creates any avalonia views to be rendered. To do so create an <see cref="AvaloniaView"/> object.
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/// Alternatively, you can call <see cref="StartBrowserAppAsync"/> method instead of <see cref="SetupBrowserAppAsync"/>.
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/// </remarks>
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public static async Task SetupBrowserAppAsync(this AppBuilder builder, BrowserPlatformOptions? options = null) |
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{ |
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builder = await PreSetupBrowser(builder, options); |
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builder |
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.SetupWithoutStarting(); |
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} |
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internal static async Task<AppBuilder> PreSetupBrowser(AppBuilder builder, BrowserPlatformOptions? options) |
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{ |
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options ??= new BrowserPlatformOptions(); |
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options.FrameworkAssetPathResolver ??= fileName => $"./{fileName}"; |
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AvaloniaLocator.CurrentMutable.Bind<BrowserPlatformOptions>().ToConstant(options); |
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await AvaloniaModule.ImportMain(); |
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if (builder.WindowingSubsystemInitializer is null) |
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{ |
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builder = builder.UseBrowser(); |
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} |
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return builder; |
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} |
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public static AppBuilder UseBrowser( |
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this AppBuilder builder) |
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{ |
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return builder |
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.UseWindowingSubsystem(BrowserWindowingPlatform.Register) |
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.UseSkia(); |
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} |
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} |
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@ -1,47 +1,36 @@ |
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using System; |
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using System.Diagnostics.CodeAnalysis; |
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using Avalonia.Controls; |
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using Avalonia.Controls.ApplicationLifetimes; |
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using System.Runtime.Versioning; |
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using Avalonia.Browser; |
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namespace Avalonia.Browser; |
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namespace Avalonia; |
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public class BrowserSingleViewLifetime : ISingleViewApplicationLifetime |
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internal class BrowserSingleViewLifetime : ISingleViewApplicationLifetime |
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{ |
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public AvaloniaView? View; |
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public Control? MainView |
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{ |
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get => View!.Content; |
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set => View!.Content = value; |
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} |
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} |
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public class BrowserPlatformOptions |
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{ |
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public Func<string, string> FrameworkAssetPathResolver { get; set; } = new(fileName => $"./{fileName}"); |
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} |
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public static class WebAppBuilder |
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{ |
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public static AppBuilder SetupBrowserApp( |
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this AppBuilder builder, string mainDivId) |
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{ |
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var lifetime = new BrowserSingleViewLifetime(); |
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return builder |
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.UseBrowser() |
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.AfterSetup(b => |
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{ |
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lifetime.View = new AvaloniaView(mainDivId); |
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}) |
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.SetupWithLifetime(lifetime); |
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get |
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{ |
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EnsureView(); |
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return View.Content; |
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} |
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set |
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{ |
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EnsureView(); |
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View.Content = value; |
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} |
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} |
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public static AppBuilder UseBrowser( |
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this AppBuilder builder) |
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[MemberNotNull(nameof(View))] |
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private void EnsureView() |
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{ |
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return builder |
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.UseWindowingSubsystem(BrowserWindowingPlatform.Register) |
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.UseSkia(); |
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if (View is null) |
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{ |
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throw new InvalidOperationException("Browser lifetime was not initialized. Make sure AppBuilder.StartBrowserApp was called."); |
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} |
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} |
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} |
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@ -0,0 +1,72 @@ |
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using System; |
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using System.Collections.Concurrent; |
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using SkiaSharp; |
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namespace Avalonia.Skia |
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{ |
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/// <summary>
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/// Cache base for Skia objects.
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/// </summary>
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internal abstract class SKCacheBase<TCachedItem, TCache> |
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where TCachedItem : IDisposable, new() |
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where TCache : new() |
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{ |
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/// <summary>
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/// Bag to hold the cached items.
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/// </summary>
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protected readonly ConcurrentBag<TCachedItem> Cache; |
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/// <summary>
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/// Shared cache.
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/// </summary>
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public static readonly TCache Shared = new TCache(); |
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protected SKCacheBase() |
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{ |
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Cache = new ConcurrentBag<TCachedItem>(); |
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} |
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/// <summary>
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/// Gets a cached item for usage.
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/// </summary>
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/// <remarks>
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/// If there is a available item in the cache, the cached item will be returned..
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/// Otherwise a new cached item will be created.
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/// </remarks>
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/// <returns></returns>
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public TCachedItem Get() |
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{ |
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if (!Cache.TryTake(out var item)) |
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{ |
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item = new TCachedItem(); |
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} |
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return item; |
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} |
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/// <summary>
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/// Returns the item for reuse later.
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/// </summary>
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/// <remarks>
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/// Do not use the item further.
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/// Do not return the same item multiple times as that will break the cache.
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/// </remarks>
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/// <param name="item"></param>
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public void Return(TCachedItem item) |
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{ |
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Cache.Add(item); |
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} |
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/// <summary>
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/// Clears and disposes all cached items.
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/// </summary>
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public void Clear() |
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{ |
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while (Cache.TryTake(out var item)) |
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{ |
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item.Dispose(); |
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} |
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} |
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} |
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} |
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using System.Collections.Concurrent; |
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using SkiaSharp; |
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namespace Avalonia.Skia |
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{ |
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/// <summary>
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/// Cache for SKFonts.
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/// </summary>
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internal class SKFontCache : SKCacheBase<SKFont, SKFontCache> |
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{ |
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} |
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} |
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@ -0,0 +1,99 @@ |
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using System.Buffers; |
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using System.Collections.Concurrent; |
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using System.Collections.Generic; |
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using SkiaSharp; |
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namespace Avalonia.Skia |
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{ |
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/// <summary>
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/// Cache for SKRoundRectCache.
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/// </summary>
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internal class SKRoundRectCache : SKCacheBase<SKRoundRect, SKRoundRectCache> |
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{ |
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/// <summary>
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/// Cache for points to use for setting the radii.
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/// </summary>
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private readonly ConcurrentBag<SKPoint[]> _radiiCache = new(); |
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/// <summary>
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/// Gets a cached SKRoundRect and sets it with the passed rectangle and Radii.
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/// </summary>
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/// <param name="rectangle">Rectangle size to set the cached rectangle to.</param>
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/// <param name="roundedRect">Rounded rectangle to copy the radii from.</param>
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/// <returns>Configured rounded rectangle</returns>
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public SKRoundRect GetAndSetRadii(in SKRect rectangle, in RoundedRect roundedRect) |
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{ |
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if (!Cache.TryTake(out var item)) |
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{ |
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item = new SKRoundRect(); |
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} |
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// Try and acquire a cached point array.
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if (!_radiiCache.TryTake(out var skArray)) |
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{ |
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skArray = new SKPoint[4]; |
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} |
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skArray[0].X = (float)roundedRect.RadiiTopLeft.X; |
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skArray[0].Y = (float)roundedRect.RadiiTopLeft.Y; |
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skArray[1].X = (float)roundedRect.RadiiTopRight.X; |
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skArray[1].Y = (float)roundedRect.RadiiTopRight.Y; |
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skArray[2].X = (float)roundedRect.RadiiBottomRight.X; |
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skArray[2].Y = (float)roundedRect.RadiiBottomRight.Y; |
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skArray[3].X = (float)roundedRect.RadiiBottomLeft.X; |
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skArray[3].Y = (float)roundedRect.RadiiBottomLeft.Y; |
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item.SetRectRadii(rectangle, skArray); |
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// Add the array back to the cache.
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_radiiCache.Add(skArray); |
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return item; |
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} |
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/// <summary>
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/// Gets a cached SKRoundRect and sets it with the passed rectangle and Radii.
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/// </summary>
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/// <param name="rectangle">Rectangle size to set the cached rectangle to.</param>
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/// <param name="radii">point array of radii.</param>
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/// <returns>Configured rounded rectangle</returns>
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public SKRoundRect GetAndSetRadii(in SKRect rectangle, in SKPoint[] radii) |
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{ |
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if (!Cache.TryTake(out var item)) |
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{ |
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item = new SKRoundRect(); |
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} |
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item.SetRectRadii(rectangle, radii); |
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return item; |
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} |
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/// <summary>
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/// Returns a SKPaint and resets it for reuse later.
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/// </summary>
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/// <remarks>
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/// Do not use the rect further.
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/// Do not return the same rect multiple times as that will break the cache.
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/// Uses SKRoundRect.SetEmpty(); for reuse later.
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/// </remarks>
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/// <param name="rect">Rectangle to reset</param>
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public void ReturnReset(SKRoundRect rect) |
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{ |
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rect.SetEmpty(); |
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Cache.Add(rect); |
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} |
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/// <summary>
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/// Clears and disposes all cached items.
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/// </summary>
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public new void Clear() |
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{ |
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base.Clear(); |
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// Clear out the cache of SKPoint arrays.
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while (_radiiCache.TryTake(out var item)) |
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{ |
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} |
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} |
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} |
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} |
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@ -0,0 +1,13 @@ |
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using System.Collections.Concurrent; |
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using SkiaSharp; |
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namespace Avalonia.Skia |
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{ |
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/// <summary>
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/// Cache for SKTextBlobBuilder.
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/// </summary>
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internal class SKTextBlobBuilderCache : SKCacheBase<SKTextBlobBuilder, SKTextBlobBuilderCache> |
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{ |
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} |
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} |
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