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134 lines
4.7 KiB
Markdown
134 lines
4.7 KiB
Markdown
<img alt="Dropzone.js" src="http://www.dropzonejs.com/images/new-logo.svg" />
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[ ](https://codeship.com/projects/55087)
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Dropzone.js is a light weight JavaScript library that turns an HTML element into a dropzone.
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This means that a user can drag and drop a file onto it, and the file gets uploaded to the server via AJAX.
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* * *
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_If you want support, please use [stackoverflow](http://stackoverflow.com/) with the `dropzone.js` tag and not the
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GitHub issues tracker. Only post an issue here if you think you discovered a bug or have a feature request._
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* * *
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**Please read the [contributing guidelines](CONTRIBUTING.md) before you start working on Dropzone!**
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<br>
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<div align="center">
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<a href="https://github.com/enyo/dropzone/releases/latest"><strong>>> Download <<</strong></a>
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</div>
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<br>
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<br>
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Starting with version 2.0.0 this library does no longer depend on jQuery (but
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it still works as a jQuery module).
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Dropzone is compatible with [component](https://github.com/component/component),
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there's a standalone version and an [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD)
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module that's compatible with [RequireJS](http://requirejs.org) in the downloads
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folder.
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<img slt="Dropzone Screenshot" width="585" src="http://i.imgur.com/Xf7QvVG.png" />
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## Main features
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- Image thumbnail previews. Simply register the callback `thumbnail(file, data)` and display the image wherever you like
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- Retina enabled
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- Multiple files and synchronous uploads
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- Progress updates
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- Support for large files
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- Complete theming. The look and feel of Dropzone is just the default theme. You
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can define everything yourself by overwriting the default event listeners.
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- Well tested
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## Documentation
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For the full documentation and installation please visit www.dropzonejs.com
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Please also refer to the [FAQ](https://github.com/enyo/dropzone/wiki/FAQ).
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## Examples
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For examples, please see the [GitHub wiki](https://github.com/enyo/dropzone/wiki).
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## Usage
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Implicit creation:
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```html
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<form id="my-awesome-dropzone" action="/target" class="dropzone"></form>
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```
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That's it. Really!
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Dropzone will automatically attach to it, and handle file drops.
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Want more control? You can configure dropzones like this:
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```js
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// "myAwesomeDropzone" is the camelized version of the ID of your HTML element
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Dropzone.options.myAwesomeDropzone = { maxFilesize: 1 };
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```
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...or instantiate dropzone manually like this:
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```js
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new Dropzone("div#my-dropzone", { /* options */ });
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```
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> Note that dropzones don't have to be forms. But if you choose another element you have to pass the `url` parameter in the options.
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For configuration options please look at the [documentation on the website](http://www.dropzonejs.com/#configuration)
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or at the [source](https://github.com/enyo/dropzone/blob/master/src/dropzone.coffee#L90).
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### Register for events
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If you want to register to some event you can do so on the `dropzone` object itself:
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```js
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Dropzone.options.myDropzone({
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init: function() {
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this.on("error", function(file, message) { alert(message); });
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}
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});
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// or if you need to access a Dropzone somewhere else:
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var myDropzone = Dropzone.forElement("div#my-dropzone");
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myDropzone.on("error", function(file, message) { alert(message); });
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```
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For a list of all events, please look at the chapter
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[»listen to events«](http://www.dropzonejs.com/#listen_to_events) in the documentation
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or at the [source](src/dropzone.coffee#L43).
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## Browser support
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- Chrome 7+
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- Firefox 4+
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- IE 10+
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- Opera 12+ (Version 12 for MacOS is disabled because their API is buggy)
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- Safari 6+
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For all the other browsers, dropzone provides an oldschool file input fallback.
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## Why another library?
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I realize that there [are](http://valums.com/ajax-upload/) [already](http://tutorialzine.com/2011/09/html5-file-upload-jquery-php/) [other](http://code.google.com/p/html5uploader/) [libraries](http://blueimp.github.com/jQuery-File-Upload/) out there but the reason I decided to write my own are the following:
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- I didn't want it to be too big, and to cumbersome to dive into.
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- I want to design my own elements. I only want to register callbacks so I can update my elements accordingly.
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- Big files should get uploaded without a problem.
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- I wanted a callback for image previews, that don't kill the browser if too many too big images are viewed.
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- I want to use the latest API of browsers. I don't care if it falls back to the normal upload form if the browser is too old.
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- I don't think that it's necessary anymore to depend on libraries such as jQuery (especially when providing functionality that isn't available in old browsers anyway).
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MIT License
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-----------
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See LICENSE file
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