KristofferStrube.Blazor.WebIDL 0.1.0-alpha.3

Blazor.WebIDL

A Blazor wrapper for types and interfaces used in and defined in the standard WebIDL specification. Among these are declarations that define specific behavior for interfaces and the standard exception definition types used across all WebIDL based APIs.

This wrapper is still being developed so ideas are still being tested and experimented with.

Demo

The sample project can be demoed at https://kristofferstrube.github.io/Blazor.WebIDL/

On each page you can find the corresponding code for the example in the top right corner.

Standard behavior and method definitions

The standard WebIDL specification make definitions that are used across all API specifications that use WebIDL for defining their interfaces. Declarations like Iterable, Asynchronously iterable, Maplike, Setlike define expected behavior and methods that should apply to the interfaces that use these definitions. This wrapper defines C# interfaces for these declarations that have implementations for the expected methods. This makes it easy and safe to implement wrappers for interfaces that define i.e. Setlike behavior.

We have currently implemented 2 interfaces for the Setlike declaration called IReadonlySetlike and IReadWriteSetlike where IReadWriteSetlike inherits from IReadonlySetlike

They can be used like this to make a very simple wrapper for the JS Set type:

public class Set : IReadWriteSetlike<Set>
{
    public IJSObjectReference JSReference { get; }
    public IJSRuntime JSRuntime { get; }

    public static async Task<Set> CreateAsync<T>(IJSRuntime jSRuntime, IEnumerable<T>? iterable = null)
    {
        var jSInstance = await jSRuntime.InvokeAsync<IJSObjectReference>("constructSet", iterable);
        return new Set(jSRuntime, jSInstance);
    }

    public Set(IJSRuntime jSRuntime, IJSObjectReference jSReference)
    {
        JSRuntime = jSRuntime;
        JSReference = jSReference;
    }
}

Exceptions

The specification also defines the types and names for all the standard exceptions and the standard names for DomExceptions.