enyo/dropzone
Dropzone
Dropzone is a JavaScript library used to create interactive file upload zones with drag-and-drop support. It functions as an HTTP file upload manager that handles network request management and the transmission of files to a server.
The library includes a client-side image previewer that generates thumbnails and resizes files within the browser before they are transmitted. It provides a customizable upload interface through a set of themes and event listeners that modify the visual style and behavior of the upload areas.
The system manages the end-to-end upload process by tracking real-time progress and supporting the transmission of large files. It employs queue-based scheduling to process pending files and provides mechanisms to display upload status via progress bars.
Features
- File Uploaders - Converts HTML elements into interactive drag-and-drop areas for managing network-based file uploads.
- File Upload Management - Manages the upload of oversized files using chunked or multipart protocols for improved stability.
- Large File Optimization - Supports the transmission of oversized files using stable protocols to prevent connection timeouts.
- Multipart Uploaders - Manages large file transfers using multipart protocols and real-time progress tracking.
- Upload Progress Tracking - Provides real-time monitoring and progress bars to display the status of file transfers.
- Drag and Drop Libraries - Implements a library that transforms HTML elements into interactive drag-and-drop upload zones.
- Asynchronous Uploaders - Handles background file transfers using XMLHttpRequest with real-time progress tracking.
- Upload Queuing - Employs queue-based scheduling to process pending files sequentially or in parallel.
- Client-Side File Processing - Performs image resizing and thumbnail generation within the browser prior to transmission.
- Browser File Management - Provides browser-based interfaces for managing file selection and transmission progress.
- Image Previewers - Displays thumbnail image previews immediately after a user selects a file.
- Upload Interface Customization - Offers a customizable interface with themes and event listeners to modify the upload experience.
- Event-Driven State Managers - Uses internal event listeners and callbacks to manage and synchronize the state of file uploads.
- Client-Side Generation - Provides browser-based thumbnail generation using the canvas API to preview images before upload.
- Form Components - Easy-to-use drag-and-drop file upload library.
- Form Components - Drag-and-drop file upload library.
