This document provides a comprehensive guide to implementing a tree component with Marko JS. The component leverages @zag-js/tree-view for creating interactive and accessible tree structures, and is structured into a main Tree component, with Branch, Item, and Action sub-components for flexibility and reusability.

The root component that orchestrates the display and functionality of the tree structure.

• id (string, required): Unique identifier for the tree instance.
• class (string, optional): Custom class for styling purposes.
• renderBody (Marko.Body, optional): Custom content that can be rendered inside the tree structure.
• branch (BranchInput[], optional): Array of branches to be rendered within the tree.
• item (ItemInput[], optional): Array of items to be rendered within the tree.
• action (ActionInput[], optional): Array of actions applicable to the tree.

<Tree id="myTree" class="custom-tree" branch=[...] item=[...] action=[...] />

Represents a branch within the tree, capable of holding items, nested branches, and actions.

• branchProps (object, required): Contains id, depth, and optionally disabled.
• class (string, optional): CSS class for the branch.
• name (string, optional): Name or label of the branch.
• renderBody (Marko.Body, optional): Slot for custom content.
• branch (Input[], optional): Nested branches.
• item (ItemInput[], optional): Items within the branch.
• action (ActionInput[], optional): Actions linked to the branch.

<Branch branchProps={ id: "branch1", depth: 1 } name="Branch 1" item=[...] />

Defines an item within a branch, containing properties for identification and customization.

• branchProps (object, required): Includes depth, id, and optionally disabled.
• class (string, optional): Custom styling class.
• name (string, optional): Label of the item.
• renderBody (Marko.Body, optional): Custom content rendering slot.
• action (ActionInput[], optional): Actions applicable to the item.

<Item branchProps={ id: "item1", depth: 2} name="Item 1" />

Allows adding interactive elements or actions to branches or items for enhanced user interaction.

• renderBody (Marko.Body, optional): Custom content or interaction elements.
• class (string, optional): Styling class.
• onClick ((target: PointerEvent) => void, optional): Click event handler.

<Action class="action-button" onClick=(event) => { /* Handle click */ } />