/// <summary>
/// Try to get the package from the registered packages.
/// </summary>
/// <param name="packageId">Id of the package to retrieve.</param>
/// <param name="package">Package to return.</param>
/// <returns>Bool indicating if package was found.</returns>
public bool TryGetPackage(string packageId, out RequiredPackage package)
{
return(_packages.TryGetValue(packageId, out package));
}
/// <summary>
/// Called via a javascript to require and return the requested package.
/// </summary>
/// <param name="packageId">ID of the RequirePackage to require.</param>
/// <param name="scriptUri">A script uri. This is only needed if the packageId doesn't meet the script convention name and the package is not a registered package.</param>
/// <returns>The return object to use for the require. Either the export from the require script or the returned HostObject if not script is present.</returns>
public object Require(string packageId, string scriptUri)
{
RequiredPackage package;
bool hasUri = !String.IsNullOrEmpty(scriptUri);
bool packageCreated = false;
if (packageId.Contains("/") || packageId.Contains("\\"))
{
if (!hasUri)
{
scriptUri = packageId;
hasUri = true;
}
packageId = DerivePackageIdFromUri(scriptUri);
if (packageId.Length == 0)
{
throw new ArgumentException(
"The provided packageId is not a valid package name. The packageId must be a valid file path or uri if path characters are contained in the name.");
}
}
if (!RequireManager.TryGetPackage(packageId, out package))
{
if (!hasUri)
{
throw new KeyNotFoundException(String.Format("The package with ID {0} was not found, did you register this package?", packageId));
}
package = new RequiredPackage {
PackageId = packageId, ScriptUri = scriptUri
};
packageCreated = true;
}
var options = new ExecutionOptions
{
HostObjects = package.HostObjects,
HostTypes = package.HostTypes
};
Engine.ApplyOptions(options);
if (!String.IsNullOrEmpty(package.ScriptUri))
{
var compiledScript = Compiler.Compile(new IncludeScript
{
Uri = package.ScriptUri,
PrependCode = "var " + packageId + " = {};",
RequiredPackage = package
});
Engine.Execute(compiledScript);
var outputObject = DynamicExtensions.GetProperty(Engine.Script, packageId);
if (outputObject is Undefined)
{
//try to find pascal case if camel is not present.
outputObject = DynamicExtensions.GetProperty(Engine.Script, packageId.ToPascalCase());
}
if (packageCreated)
{
RequireManager.RegisterPackage(package);
}
return(outputObject.exports);
}
if (options.HostObjects.SafeAny())
{
return(options.HostObjects[0]);
}
return(null);
}
/// <summary>
/// Register a packaged for potential requirement.
/// </summary>
/// <param name="package">The package to register.</param>
public void RegisterPackage(RequiredPackage package)
{
_packages.TryAdd(package.PackageId, package);
}
/// <summary>
/// Called via a javascript to require and return the requested package.
/// </summary>
/// <param name="packageId">ID of the RequirePackage to require.</param>
/// <param name="scriptUri">A script uri. This is only needed if the packageId doesn't meet the script convention name and the package is not a registered package.</param>
/// <returns>The return object to use for the require. Either the export from the require script or the returned HostObject if not script is present.</returns>
public object Require(string packageId, string scriptUri)
{
RequiredPackage package;
bool hasUri = !String.IsNullOrEmpty(scriptUri);
bool packageCreated = false;
if (packageId.StartsWith("/"))
{
packageId = "." + packageId;
}
if (packageId.Contains("/") || packageId.Contains("\\"))
{
//http 和 file 类型的都会进来
if (!hasUri)
{
scriptUri = packageId;
hasUri = true;
}
//拿到真正的地址
var real = GetRealFilePath(scriptUri);
packageId = real.PackageId;
scriptUri = real.NativeRequirePath;
if (packageId.Length == 0)
{
throw new ArgumentException(
"The provided packageId is not a valid package name. The packageId must be a valid file path or uri if path characters are contained in the name.");
}
}
if (!RequireManager.TryGetPackage(packageId, out package))
{
if (!hasUri)
{
throw new KeyNotFoundException(String.Format("The package with ID {0} was not found, did you register this package?", packageId));
}
package = new RequiredPackage {
PackageId = packageId, ScriptUri = scriptUri
};
packageCreated = true;
}
if (package.Exports != null)
{
return(package.Exports);
}
var options = new ExecutionOptions
{
HostObjects = package.HostObjects,
HostTypes = package.HostTypes
};
Engine.ApplyOptions(options);
if (!String.IsNullOrEmpty(package.ScriptUri))
{
var includScript = new IncludeScript
{
Uri = package.ScriptUri,
PrependCode = "var " + package.PackageId + " = {};",
RequiredPackage = package
};
var compiledScript = Compiler.Compile(includScript);
if (compiledScript == null && includScript.Exports != null)//DLL场景
{
if (packageCreated)
{
package.Exports = includScript.Exports;
RequireManager.RegisterPackage(package);
}
_LastRequireDic.TryRemove(_lastRequireIdex, out string _aa);
_lastRequireIdex--;
return(package.Exports);
}
Engine.Execute(compiledScript);
var outputObject = DynamicExtensions.GetProperty(Engine.Script, package.PackageId);
if (outputObject is Undefined)
{
//try to find pascal case if camel is not present.
outputObject = DynamicExtensions.GetProperty(Engine.Script, package.PackageId.ToPascalCase());
}
if (packageCreated)
{
RequireManager.RegisterPackage(package);
}
if (_lastRequireIdex > 0)
{
_LastRequireDic.TryRemove(_lastRequireIdex, out string _a);
_lastRequireIdex--;
}
return(outputObject.exports);
}
if (options.HostObjects.SafeAny())
{
return(options.HostObjects[0].Target);
}
return(null);
}