Components
This React component provides a robust and customizable file upload experience, enhancing user interaction and handling various file types and sizes. It addresses the common need for controlled file uploads in web applications, offering features like drag-and-drop functionality, file validation (size and type), multiple file selection, and visual feedback.
The component works by utilizing React's useState and useRef hooks to manage component state and DOM elements. A file input element is hidden, and the upload area is styled to provide a visually appealing drag-and-drop interface. When a file is selected (either by clicking or dropping), the processFiles function is invoked. This function validates each file against specified size and type constraints. Files that pass validation are added to the component's internal state, and their metadata (name, size, type, preview URL for images) is stored. Errors are also tracked and displayed to the user. The component exposes callbacks, onFilesSelect and onFilesRemove, allowing parent components to react to file selection and removal events.
Key features include:
This component can be used in various applications where file uploads are required, such as image galleries, document management systems, or cloud storage platforms. For example, it could be integrated into a form for submitting documents or used in a media-sharing application to upload images and videos. The component's flexibility makes it suitable for different use cases and design styles.
The component utilizes React's useState, useRef, and useCallback hooks for state management and performance optimization. It also leverages URL.createObjectURL for generating preview URLs for images, and URL.revokeObjectURL for cleanup. The demo showcases how to customize the component's behavior and styling.
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import FileUploadDemo from "@/components/ui/advanced-file-upload-component";
export default function DemoOne() {
return <FileUploadDemo />;
}