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Since git decided to mark StandardAssetLoader file as a new, why not fix formatting in here anyway

pull/11190/head
Max Katz 3 years ago
parent
810558140f
commit
ae3931faa7
1 changed files with 172 additions and 173 deletions
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  1. 345
      src/Avalonia.Base/Platform/StandardAssetLoader.cs

345
src/Avalonia.Base/Platform/StandardAssetLoader.cs
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@ -7,250 +7,249 @@ using System.Reflection;
using Avalonia.Platform.Internal;
using Avalonia.Utilities;
namespace Avalonia.Platform
namespace Avalonia.Platform;
/// <summary>
/// Loads assets compiled into the application binary.
/// </summary>
internal class StandardAssetLoader : IAssetLoader
{
private readonly IAssemblyDescriptorResolver _assemblyDescriptorResolver;
private AssemblyDescriptor? _defaultResmAssembly;
public StandardAssetLoader(IAssemblyDescriptorResolver resolver, Assembly? assembly = null)
{
if (assembly == null)
assembly = Assembly.GetEntryAssembly();
if (assembly != null)
_defaultResmAssembly = new AssemblyDescriptor(assembly);
_assemblyDescriptorResolver = resolver;
}
public StandardAssetLoader(Assembly? assembly = null) : this(new AssemblyDescriptorResolver(), assembly)
{
}
/// <summary>
/// Loads assets compiled into the application binary.
/// Sets the default assembly from which to load assets for which no assembly is specified.
/// </summary>
internal class StandardAssetLoader : IAssetLoader
/// <param name="assembly">The default assembly.</param>
public void SetDefaultAssembly(Assembly assembly)
{
private readonly IAssemblyDescriptorResolver _assemblyDescriptorResolver;
private AssemblyDescriptor? _defaultResmAssembly;
_defaultResmAssembly = new AssemblyDescriptor(assembly);
}
public StandardAssetLoader(IAssemblyDescriptorResolver resolver, Assembly? assembly = null)
{
if (assembly == null)
assembly = Assembly.GetEntryAssembly();
if (assembly != null)
_defaultResmAssembly = new AssemblyDescriptor(assembly);
_assemblyDescriptorResolver = resolver;
}
/// <summary>
/// Checks if an asset with the specified URI exists.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>True if the asset could be found; otherwise false.</returns>
public bool Exists(Uri uri, Uri? baseUri = null)
{
return TryGetAsset(uri, baseUri, out _);
}
public StandardAssetLoader(Assembly? assembly = null) : this(new AssemblyDescriptorResolver(), assembly)
/// <summary>
/// Opens the asset with the requested URI.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>A stream containing the asset contents.</returns>
/// <exception cref="FileNotFoundException">
/// The asset could not be found.
/// </exception>
public Stream Open(Uri uri, Uri? baseUri = null) => OpenAndGetAssembly(uri, baseUri).Item1;
/// <summary>
/// Opens the asset with the requested URI and returns the asset stream and the
/// assembly containing the asset.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>
/// The stream containing the resource contents together with the assembly.
/// </returns>
/// <exception cref="FileNotFoundException">
/// The asset could not be found.
/// </exception>
public (Stream stream, Assembly assembly) OpenAndGetAssembly(Uri uri, Uri? baseUri = null)
{
if (TryGetAsset(uri, baseUri, out var assetDescriptor))
{
return (assetDescriptor.GetStream(), assetDescriptor.Assembly);
}
/// <summary>
/// Sets the default assembly from which to load assets for which no assembly is specified.
/// </summary>
/// <param name="assembly">The default assembly.</param>
public void SetDefaultAssembly(Assembly assembly)
throw new FileNotFoundException($"The resource {uri} could not be found.");
}
public Assembly? GetAssembly(Uri uri, Uri? baseUri)
{
if (!uri.IsAbsoluteUri && baseUri != null)
{
_defaultResmAssembly = new AssemblyDescriptor(assembly);
uri = new Uri(baseUri, uri);
}
/// <summary>
/// Checks if an asset with the specified URI exists.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>True if the asset could be found; otherwise false.</returns>
public bool Exists(Uri uri, Uri? baseUri = null)
if (TryGetAssembly(uri, out var assemblyDescriptor))
{
return TryGetAsset(uri, baseUri, out _);
return assemblyDescriptor.Assembly;
}
/// <summary>
/// Opens the asset with the requested URI.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>A stream containing the asset contents.</returns>
/// <exception cref="FileNotFoundException">
/// The asset could not be found.
/// </exception>
public Stream Open(Uri uri, Uri? baseUri = null) => OpenAndGetAssembly(uri, baseUri).Item1;
/// <summary>
/// Opens the asset with the requested URI and returns the asset stream and the
/// assembly containing the asset.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">
/// A base URI to use if <paramref name="uri"/> is relative.
/// </param>
/// <returns>
/// The stream containing the resource contents together with the assembly.
/// </returns>
/// <exception cref="FileNotFoundException">
/// The asset could not be found.
/// </exception>
public (Stream stream, Assembly assembly) OpenAndGetAssembly(Uri uri, Uri? baseUri = null)
return null;
}
/// <summary>
/// Gets all assets of a folder and subfolders that match specified uri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">Base URI that is used if <paramref name="uri"/> is relative.</param>
/// <returns>All matching assets as a tuple of the absolute path to the asset and the assembly containing the asset</returns>
public IEnumerable<Uri> GetAssets(Uri uri, Uri? baseUri)
{
if (uri.IsAbsoluteResm())
{
if (TryGetAsset(uri, baseUri, out var assetDescriptor))
if (!TryGetAssembly(uri, out var assembly))
{
return (assetDescriptor.GetStream(), assetDescriptor.Assembly);
assembly = _defaultResmAssembly;
}
throw new FileNotFoundException($"The resource {uri} could not be found.");
return assembly?.Resources?
.Where(x => x.Key.Contains(uri.GetUnescapeAbsolutePath()))
.Select(x => new Uri($"resm:{x.Key}?assembly={assembly.Name}")) ??
Enumerable.Empty<Uri>();
}
public Assembly? GetAssembly(Uri uri, Uri? baseUri)
uri = uri.EnsureAbsolute(baseUri);
if (uri.IsAvares())
{
if (!uri.IsAbsoluteUri && baseUri != null)
if (!TryGetResAsmAndPath(uri, out var assembly, out var path))
{
uri = new Uri(baseUri, uri);
return Enumerable.Empty<Uri>();
}
if (TryGetAssembly(uri, out var assemblyDescriptor))
if (assembly?.AvaloniaResources == null)
{
return assemblyDescriptor.Assembly;
return Enumerable.Empty<Uri>();
}
return null;
if (path.Length > 0 && path[path.Length - 1] != '/')
{
path += '/';
}
return assembly.AvaloniaResources
.Where(r => r.Key.StartsWith(path, StringComparison.Ordinal))
.Select(x => new Uri($"avares://{assembly.Name}{x.Key}"));
}
/// <summary>
/// Gets all assets of a folder and subfolders that match specified uri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <param name="baseUri">Base URI that is used if <paramref name="uri"/> is relative.</param>
/// <returns>All matching assets as a tuple of the absolute path to the asset and the assembly containing the asset</returns>
public IEnumerable<Uri> GetAssets(Uri uri, Uri? baseUri)
return Enumerable.Empty<Uri>();
}
private bool TryGetAsset(Uri uri, Uri? baseUri, [NotNullWhen(true)] out IAssetDescriptor? assetDescriptor)
{
assetDescriptor = null;
if (uri.IsAbsoluteResm())
{
if (uri.IsAbsoluteResm())
if (!TryGetAssembly(uri, out var assembly) && !TryGetAssembly(baseUri, out assembly))
{
if (!TryGetAssembly(uri, out var assembly))
{
assembly = _defaultResmAssembly;
}
return assembly?.Resources?
.Where(x => x.Key.Contains(uri.GetUnescapeAbsolutePath()))
.Select(x => new Uri($"resm:{x.Key}?assembly={assembly.Name}")) ??
Enumerable.Empty<Uri>();
assembly = _defaultResmAssembly;
}
uri = uri.EnsureAbsolute(baseUri);
if (uri.IsAvares())
if (assembly?.Resources != null)
{
if (!TryGetResAsmAndPath(uri, out var assembly, out var path))
{
return Enumerable.Empty<Uri>();
}
if (assembly?.AvaloniaResources == null)
{
return Enumerable.Empty<Uri>();
}
var resourceKey = uri.AbsolutePath;
if (path.Length > 0 && path[path.Length - 1] != '/')
if (assembly.Resources.TryGetValue(resourceKey, out assetDescriptor))
{
path += '/';
return true;
}
return assembly.AvaloniaResources
.Where(r => r.Key.StartsWith(path, StringComparison.Ordinal))
.Select(x => new Uri($"avares://{assembly.Name}{x.Key}"));
}
return Enumerable.Empty<Uri>();
}
private bool TryGetAsset(Uri uri, Uri? baseUri, [NotNullWhen(true)] out IAssetDescriptor? assetDescriptor)
{
assetDescriptor = null;
uri = uri.EnsureAbsolute(baseUri);
if (uri.IsAbsoluteResm())
if (uri.IsAvares())
{
if (TryGetResAsmAndPath(uri, out var assembly, out var path))
{
if (!TryGetAssembly(uri, out var assembly) && !TryGetAssembly(baseUri, out assembly))
if (assembly.AvaloniaResources == null)
{
assembly = _defaultResmAssembly;
return false;
}
if (assembly?.Resources != null)
if (assembly.AvaloniaResources.TryGetValue(path, out assetDescriptor))
{
var resourceKey = uri.AbsolutePath;
if (assembly.Resources.TryGetValue(resourceKey, out assetDescriptor))
{
return true;
}
return true;
}
}
}
uri = uri.EnsureAbsolute(baseUri);
return false;
}
if (uri.IsAvares())
{
if (TryGetResAsmAndPath(uri, out var assembly, out var path))
{
if (assembly.AvaloniaResources == null)
{
return false;
}
if (assembly.AvaloniaResources.TryGetValue(path, out assetDescriptor))
{
return true;
}
}
}
private bool TryGetResAsmAndPath(Uri uri, [NotNullWhen(true)] out IAssemblyDescriptor? assembly, out string path)
{
path = uri.GetUnescapeAbsolutePath();
return false;
if (TryLoadAssembly(uri.Authority, out assembly))
{
return true;
}
private bool TryGetResAsmAndPath(Uri uri, [NotNullWhen(true)] out IAssemblyDescriptor? assembly, out string path)
return false;
}
private bool TryGetAssembly(Uri? uri, [NotNullWhen(true)] out IAssemblyDescriptor? assembly)
{
assembly = null;
if (uri != null)
{
path = uri.GetUnescapeAbsolutePath();
if (!uri.IsAbsoluteUri)
{
return false;
}
if (TryLoadAssembly(uri.Authority, out assembly))
if (uri.IsAvares() && TryGetResAsmAndPath(uri, out assembly, out _))
{
return true;
}
return false;
}
private bool TryGetAssembly(Uri? uri, [NotNullWhen(true)] out IAssemblyDescriptor? assembly)
{
assembly = null;
if (uri != null)
if (uri.IsResm())
{
if (!uri.IsAbsoluteUri)
{
return false;
}
var assemblyName = uri.GetAssemblyNameFromQuery();
if (uri.IsAvares() && TryGetResAsmAndPath(uri, out assembly, out _))
if (assemblyName.Length > 0 && TryLoadAssembly(assemblyName, out assembly))
{
return true;
}
if (uri.IsResm())
{
var assemblyName = uri.GetAssemblyNameFromQuery();
if (assemblyName.Length > 0 && TryLoadAssembly(assemblyName, out assembly))
{
return true;
}
}
}
return false;
}
private bool TryLoadAssembly(string assemblyName, [NotNullWhen(true)] out IAssemblyDescriptor? assembly)
{
assembly = null;
return false;
}
try
{
assembly = _assemblyDescriptorResolver.GetAssembly(assemblyName);
private bool TryLoadAssembly(string assemblyName, [NotNullWhen(true)] out IAssemblyDescriptor? assembly)
{
assembly = null;
return true;
}
catch (Exception) { }
try
{
assembly = _assemblyDescriptorResolver.GetAssembly(assemblyName);
return false;
return true;
}
catch (Exception) { }
return false;
}
}

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