XtermBlazor

Brings xterm.js to Blazor

Live Demo: https://xtermblazor.pages.dev

Demo Projects

• XtermBlazor.Demo.Server (Blazor Server)
• XtermBlazor.Demo.Wasm (Blazor WebAssembly)

Prerequisites

Before you get started with this project, make sure you have the following software installed on your system:

• .NET: You will need .NET 6.0 or later for this project.
• Node.js: This project also requires Node.js version 18 or later.

Installation

1. Install the package

Find the package through NuGet Package Manager or install it with following command.

dotnet add package XtermBlazor

2. Add Imports

After the package is added, you need to add the following in your _Imports.razor

@using XtermBlazor

3. Add CSS & Font references

Add the following to your HTML head section, it's either index.html or _Host.cshtml depending on whether you're running WebAssembly or Server.

<link href="_content/XtermBlazor/XtermBlazor.min.css" rel="stylesheet" />

In the HTML body section of either index.html or _Host.cshtml add this:

<script src="_content/XtermBlazor/XtermBlazor.min.js"></script>

Basic Usage

<Xterm @ref="_terminal" Options="_options" OnFirstRender="@OnFirstRender" />

@code {
    private Xterm _terminal;

    private TerminalOptions _options = new TerminalOptions
    {
        CursorBlink = true,
        CursorStyle = CursorStyle.Bar,
        Theme =
        {
            Background = "#17615e",
        },
    };

    private async Task OnFirstRender()
    {
        await _terminal.WriteLine("Hello World");
    }
}

Addons

Xterm supports Addons

To use @xterm/addon-fit addon, you need to add the following to your HTML body section either index.html or _Host.cshtml.

Blazor WebAssembly index.html

<!-- Add addon-fit.min.js before blazor.webassembly.js and XtermBlazor.min.js -->
<script src="https://cdn.jsdelivr.net/npm/@xterm/[email protected]/lib/addon-fit.min.js"></script>

<script src="_framework/blazor.webassembly.js"></script>
<script>navigator.serviceWorker.register('service-worker.js');</script>

<!-- Load the XtermBlazor library and register addons -->
<script src="_content/XtermBlazor/XtermBlazor.min.js"></script>
<script>XtermBlazor.registerAddons({"addon-fit": new FitAddon.FitAddon()});</script>

Blazor Server _Host.cshtml

<!-- Add addon-fit.min.js before blazor.server.js and XtermBlazor.min.js -->
<script src="https://cdn.jsdelivr.net/npm/@@xterm/[email protected]/lib/addon-fit.min.js"></script>

<script src="_framework/blazor.server.js"></script>

<!-- Load the XtermBlazor library and register addons -->
<script src="_content/XtermBlazor/XtermBlazor.min.js"></script>
<script>XtermBlazor.registerAddons({"addon-fit": new FitAddon.FitAddon()});</script>

Usage with addons

<Xterm @ref="_terminal" Options="_options" Addons="_addons" OnFirstRender="@OnFirstRender" />

@code {
    private Xterm _terminal;

    private TerminalOptions _options = new TerminalOptions
    {
        CursorBlink = true,
        CursorStyle = CursorStyle.Bar,
    };

    private HashSet<string> _addons = new HashSet<string>()
    {
        "addon-fit",
    };

    private async Task OnFirstRender()
    {
        // Invoke fit() function
        await _terminal.Addon("addon-fit").InvokeVoidAsync("fit");

        await _terminal.WriteLine("Hello World");
    }
}

Real-world uses

• Moonlight Panel: The next generation hosting panel
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• KubeUI: Kubernetes User Interface
• And much more...

Contributing

Contributions are welcome! Please feel free to submit pull requests or open issues.

License

XtermBlazor is licensed under the MIT License. See the LICENSE file for more details.

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