trail-js

🧭 trail-js — React Walkthrough / Guided Tour Library

trail-js is a lightweight, highly-customizable, and feature-rich walkthrough library for React apps. It allows developers to guide users through product features using interactive steps, tooltips, and navigation logic.

✨ Features

• Step-by-step guides with DOM element targeting
• Supports custom content (jsx support)
• canGoNext validations for conditional progression
• beforeNext async hooks for side effects
• Optional backdrop with focus highlighting
• Responsive positioning with auto-clamping
• Smooth scroll to target elements
• Dynamic tooltips with styling overrides

📦 Installation

npm install trail-js
# or
yarn add trail-js

🧠 Basic Usage

import {
  WalkthroughProvider,
  Walkthrough,
  useWalkthrough,
  type WalkthroughStep,
} from "trail-js";

const steps: WalkthroughStep[] = [
  {
    selector: "#start-button",
    content: "Click this button to get started!",
    placement: "bottom",
  },
  {
    selector: "#name-input",
    content: "Enter your name before continuing.",
    placement: "top",
    canGoNext: {
      validate: () => !!document.getElementById("name-input")?.value,
      errorString: "Name is required!",
    },
  },
];

const App = () => (
  <WalkthroughProvider steps={steps}>
    <YourApp />
    <Walkthrough />
  </WalkthroughProvider>
);

🛠️ API Reference

WalkthroughProvider

Wrap your app with this provider and pass the list of steps.

<WalkthroughProvider steps={steps}>
  <App />
</WalkthroughProvider>

Walkthrough

The tooltip and highlight overlay component. Should be placed inside WalkthroughProvider.

<Walkthrough />

🔁 Step Object (WalkthroughStep)

type WalkthroughStep = {
  selector: string;
  content: string | ReactNode;
  placement?: "top" | "bottom" | "left" | "right" | "auto";
  triggerEvent?: string;
  onEnter?: () => void;
  onExit?: () => void;
  beforeNext?: () => void | Promise<void>;
  canGoNext?: {
    validate: () => boolean | Promise<boolean>;
    errorString?: string;
  };
  showBackdrop?: boolean;
  tooltipClassName?: string;
  tooltipStyle?: React.CSSProperties;
  navButtonClassName?: string;
  navButtonStyle?: React.CSSProperties;
  customNavigation?: (controls: WalkthroughControls) => ReactNode;
}

customNavigation Controls

type WalkthroughControls = {
  next: () => void;
  back: () => void;
  skip: () => void;
  goToStep: (index: number) => void;
};

useWalkthrough()

Main hook to control walkthrough progression.

Returns

Property	Type	Description
steps	WalkthroughStep[]	All defined steps for the current walkthrough
currentStepIndex	number	Index of the current active step
isActive	boolean	Whether walkthrough is active or not
next	() => void	Move to the next step
back	() => void	Move to the previous step
skip	() => void	Skip and end the walkthrough
goToStep	(index: number) => void	Jump to a specific step

Use Cases

• User onboarding flows
• Feature discovery in SaaS apps
• Interactive documentation
• Admin dashboards and tutorials
• Demo mode for products

🎯 Examples

1. Basic Step with Default Navigation

{
  selector: "#submit-button",
  content: "Click to submit the form",
  placement: "right",
}

2. Step with Validation and Custom Error

{
  selector: "#email",
  content: "Please enter a valid email",
  canGoNext: {
    validate: () => /\S+@\S+\.\S+/.test(document.getElementById("email")?.value || ""),
    errorString: "Valid email required!",
  },
}

3. Step with Custom Navigation Buttons

{
  selector: "#next-step",
  content: "Custom nav UI",
  customNavigation: ({ next, back }) => (
    <div>
      <button onClick={back}>← Prev</button>
      <button onClick={next}>Next →</button>
    </div>
  ),
}

🎨 Styling

You can override default styles with CSS classes:

.walkthrough-tooltip {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.walkthrough-overlay {
  background: rgba(0, 0, 0, 0.5);
}

Or use tooltipClassName, tooltipStyle, navButtonClassName, and navButtonStyle props per step.

🧪 Dev / Example

To run the demo locally:

npm install
npm run dev

📄 License

MIT License

🤝 Contributing

Contributions, suggestions, and feedback are welcome!

• Fork the repo
• Create a new branch
• Make your changes
• Open a PR

💬 Support

Feel free to open an issue or contact via discussions for help or feature requests.