usePositioningTargetSelector

The usePositioningTargetSelector is a custom React hook designed to handle positioning algorithms and their respective targets and options within a user interface. This hook utilizes various side effects and callbacks to manage state and interactions with a positioning controller.

Overview

This hook provides functions to:

• Enable or disable specific positioning target types.
• Clear and select algorithms.
• Update options for the algorithm.
• Retrieve and manage targets and options for a specified positioning algorithm.

Import Statements

import {
  ITargetAndOptionsForPositioningAlgorithm,
  PositioningControllerAlgorithm,
  PositioningTargetType,
} from "@shared/interfaces";

import { useCallback, useEffect, useState } from "react";

Hook: usePositioningTargetSelector

Function Signature

eort function usePositioningTargetSelector<TAlgorithmOptions>(
  algorithm: PositioningControllerAlgorithm,
  options: TAlgorithmOptions
);

Parameters

• algorithm: The positioning algorithm to be controlled. This is of type PositioningControllerAlgorithm.
• options: The initial options for the targeting algorithm. This is a generic type TAlgorithmOptions.

States

• targetsAndOptionsForAlgorithm: This state holds an object that contains targets and options associated with the specified algorithm.

Callbacks

• handleOnPositioningTargetTypeChange:

  • Purpose: Enable or disable a specific target type.
  • Parameters: targetType: PositioningTargetType, enabled: boolean
  • Usage: Invokes an action to change the target type's enabled state.

• handleOnClear:

  • Purpose: Clears the current algorithm's settings.
  • Logs: Outputs "clear" followed by the algorithm to the console.

• handleOnSelection:

  • Purpose: Activates the algorithm for selection.
  • Logs: Outputs "select" followed by the algorithm to the console.

• updateOptionsForAlgorithm:

  • Purpose: Updates the options for the current algorithm.
  • Parameters: updateOptions: Partial<TAlgorithmOptions>

Effects

• useEffect:
  • Purpose: On component mount, retrieves targets and options for the specified algorithm from a server method and updates the state accordingly.

Returns

The hook returns an object containing:

Property	Type	Description
handleOnPositioningTargetTypeChange	Function	Callback to change target type state.
handleOnClear	Function	Callback to clear algorithm settings.
handleOnSelection	Function	Callback to select the algorithm.
targetsAndOptionsForAlgorithm	ITargetAndOptionsForPositioningAlgorithm<TAlgorithmOptions>	State containing targets and options.
updateOptionsForAlgorithm	Function	Function to update algorithm options.

Example Usage

import { usePositioningTargetSelector } from "./usePositioningTargetSelector";

const MyComponent = () => {
  const {
    handleOnPositioningTargetTypeChange,
    handleOnClear,
    handleOnSelection,
    targetsAndOptionsForAlgorithm,
    updateOptionsForAlgorithm,
  } = usePositioningTargetSelector(myAlgorithm, myOptions);

  // Usage of handlers and state
};

Notes

• The hook uses window.kweenb actions and methods, implying an interaction with a global object or library designed for position handling.
• The use of useEffect ensures that the targets and options are fetched and set when the component mounts, providing an initial setup for the positioning logic.

This documentation provides a comprehensive overview and usage guide for the usePositioningTargetSelector hook, encapsulating its purpose, structure, and usage within a React application.