use-create-folder.ts

Overview

The use-create-folder.ts file defines a custom React hook useHandleCreateFolder that manages the creation of folders within a file system or document management context. It encapsulates the logic for displaying a modal dialog to create a folder, handling the asynchronous folder creation request, and managing the modal's visibility state.

This hook abstracts the UI state management and backend interaction required to create a folder, making it reusable and easy to integrate into components that require folder creation functionality.

Detailed Explanation

useHandleCreateFolder()

Description

useHandleCreateFolder is a custom React hook that provides state and handlers for creating a new folder. It controls the visibility of the folder creation modal, handles the creation request via an API hook, and provides feedback on the loading state.

Returns

An object containing:

Parameters

This hook does not take any parameters.

Usage Example

import React from 'react';
import { useHandleCreateFolder } from './use-create-folder';

const FolderCreationComponent = () => {
  const {
    folderCreateLoading,
    onFolderCreateOk,
    folderCreateModalVisible,
    hideFolderCreateModal,
    showFolderCreateModal,
  } = useHandleCreateFolder();

  const handleCreateClick = () => {
    showFolderCreateModal();
  };

  const handleConfirm = (folderName: string) => {
    onFolderCreateOk(folderName);
  };

  return (
    <>
      <button onClick={handleCreateClick}>Create Folder</button>
      {folderCreateModalVisible && (
        <FolderCreateModal
          loading={folderCreateLoading}
          onConfirm={handleConfirm}
          onCancel={hideFolderCreateModal}
        />
      )}
    </>
  );
};

Implementation Details

• Modal State Management: The hook uses useSetModalState() to manage the modal visibility (visible), and provides functions showModal and hideModal to toggle visibility. This is a reusable hook designed for generic modal state management.

• Folder Creation API Call: The hook relies on useCreateFolder() which exposes a createFolder function and a loading state. The createFolder function sends a request to create a folder with provided parameters (parentId and name).

• Current Folder Context: The hook uses useGetFolderId() to retrieve the current folder ID, which is used as the parentId for the new folder creation. This ensures the new folder is created under the correct parent directory.

• Asynchronous Handling: The onFolderCreateOk function is wrapped with useCallback to memoize it and prevent unnecessary re-renders. It asynchronously calls createFolder and, upon successful creation (indicated by ret === 0), hides the modal.

• Return Object: The returned object provides all necessary variables and functions to control the folder creation UI and logic from a consuming component.

Interaction with Other System Parts

• Hooks Imported:

  • useSetModalState (from @/hooks/common-hooks): Provides modal visibility state and toggle functions.

  • useCreateFolder (from @/hooks/use-file-request): Handles the API request for creating folders.

  • useGetFolderId (local import from ./hooks): Retrieves the current folder context (ID) for creation.

• UI Components (Expected):

  The hook is designed to be used in UI components that render a modal dialog for folder creation, such as a FolderCreateModal component, which will use the hook's return values to control display and trigger folder creation.

• Folder Structure Management:

  This hook is part of a file/folder management system, facilitating folder creation within a nested structure by associating new folders with their parent folders.

Visual Diagram

flowchart TD
    A[useHandleCreateFolder Hook] --> B[useSetModalState Hook]
    A --> C[useCreateFolder Hook]
    A --> D[useGetFolderId Hook]
    A --> E{onFolderCreateOk(name: string)}
    E -->|Calls| C.createFolder({parentId: id, name})
    E -->|On success (ret === 0)| B.hideModal()
    B -->|Provides| folderCreateModalVisible
    B -->|Provides| showFolderCreateModal()
    B -->|Provides| hideFolderCreateModal()
    C -->|Provides| loading
    D -->|Provides| id (current folder id)
    A -->|Returns| folderCreateLoading
    A -->|Returns| onFolderCreateOk
    A -->|Returns| folderCreateModalVisible
    A -->|Returns| hideFolderCreateModal
    A -->|Returns| showFolderCreateModal

Summary

• use-create-folder.ts defines a single custom hook useHandleCreateFolder that orchestrates modal state management, folder creation API calls, and contextual parent folder identification.

• It simplifies folder creation workflows for UI components by providing loading states, modal visibility controls, and an asynchronous callback to create folders.

• The file depends on several reusable hooks, promoting separation of concerns and code reuse.

• This hook is integral to the folder management UI workflow, enabling users to create new folders within a hierarchical folder structure efficiently and with feedback.