ktsu.ImGuiCredentialPopups 1.2.23

ktsu.ImGuiCredentialPopups

Ready-made Dear ImGui modal dialogs for collecting credentials.

Introduction

ktsu.ImGuiCredentialPopups provides drop-in modal dialogs for asking a user for credentials inside a Dear ImGui application. Rather than hand-rolling an input modal, masked text field, and confirm/cancel button pair for every application that needs to authenticate, you open a popup and receive a Credential back through a callback.

The credential types come from ktsu.CredentialCache, so what the popup hands you is ready to persist in the host's native keyring or pass straight to an API client.

Features

• Username/Password Popup: UsernamePasswordPopup collects a username and a masked password and returns a CredentialWithUsernamePassword.
• Token Popup: TokenPopup collects a single masked token value and returns a CredentialWithToken.
• Shared Base Class: CredentialPopup handles the modal lifecycle, title and label configuration, and confirmation callback, so adding a new credential shape means overriding two methods.
• Masked Input: Secret fields use ImGuiInputTextFlags.Password so values are never rendered in plain text.
• Automatic Focus: The first input field receives keyboard focus when the modal opens, so the user can start typing immediately.
• CredentialCache Integration: Results are ktsu.CredentialCache credential types, ready to store through an ICredentialStore.

Installation

Package Manager Console

Install-Package ktsu.ImGuiCredentialPopups

.NET CLI

dotnet add package ktsu.ImGuiCredentialPopups

Package Reference

<PackageReference Include="ktsu.ImGuiCredentialPopups" Version="x.y.z" />

Usage Examples

Basic Example

Create the popup once and keep it alive for the lifetime of the window, then call ShowIfOpen() every frame from your render loop.

using ktsu.CredentialCache;
using ktsu.ImGuiCredentialPopups;

private readonly UsernamePasswordPopup loginPopup = new();

private void OnRender()
{
    if (ImGui.Button("Sign in"))
    {
        loginPopup.Open("Sign in to GitHub", "Credentials", credential =>
        {
            CredentialWithUsernamePassword login = (CredentialWithUsernamePassword)credential;
            Authenticate(login.Username, login.Password);
        });
    }

    // Must be called every frame so the modal can draw itself.
    loginPopup.ShowIfOpen();
}

Collecting a Token

using ktsu.CredentialCache;
using ktsu.ImGuiCredentialPopups;

private readonly TokenPopup tokenPopup = new();

private void OnRender()
{
    if (ImGui.Button("Set access token"))
    {
        tokenPopup.Open("Personal Access Token", "Token", credential =>
        {
            CredentialWithToken token = (CredentialWithToken)credential;
            cache.Store("github", token);
        });
    }

    tokenPopup.ShowIfOpen();
}

Adding a Custom Credential Popup

Derive from CredentialPopup and supply the input UI and the credential it produces.

using ktsu.ImGuiCredentialPopups;

public class ApiKeyPopup : CredentialPopup
{
    private string apiKey = string.Empty;

    protected override bool ShowEdit()
    {
        ImGui.InputText("API Key", ref apiKey, 200, ImGuiInputTextFlags.Password);
        return false;
    }

    protected override Credential MakeCredential() =>
        new CredentialWithToken { Token = apiKey.As<CredentialToken>() };
}

API Reference

CredentialPopup

Abstract base class for credential input popups.

Properties

Methods

UsernamePasswordPopup

CredentialPopup that collects a username and masked password, producing a CredentialWithUsernamePassword.

TokenPopup

CredentialPopup that collects a single masked token, producing a CredentialWithToken.

Contributing

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

License

This project is licensed under the MIT License. See the LICENSE.md file for details.