Ticket/InsdepUI/plugin/plupload-2.1.9/readme.md

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# Plupload

Plupload is a cross-browser multi-runtime file uploading API. Basically, a set of tools that will help you to 
build a reliable and visually appealing file uploader in minutes.

Historically, Plupload comes from a dark and hostile age of no HTML5, hence all the alternative fallbacks, 
like Flash, Silverlight and Java (still in development). It is meant to provide an API, that 
will work anywhere and in any case, in one way or another. While having very solid fallbacks, Plupload 
is built with the future of HTML5 in mind.

### Table of Contents
* [Backstory](https://github.com/moxiecode/plupload/blob/master/readme.md#backstory)
* [Structure](https://github.com/moxiecode/plupload/blob/master/readme.md#structure)
  * [File API and XHR L2 pollyfills](https://github.com/moxiecode/moxie/blob/master/README.md)
  * [Plupload API](https://github.com/moxiecode/plupload/wiki/API)
  * [UI Widget](https://github.com/moxiecode/plupload/wiki/UI.Plupload)
  * [Queue Widget](https://github.com/moxiecode/plupload/wiki/pluploadQueue)
* [Demos](https://github.com/jayarjo/plupload-demos/blob/master/README.md)
* [Building Instructions](https://github.com/moxiecode/plupload/blob/master/readme.md#build)
* [Getting Started](https://github.com/moxiecode/plupload/wiki/Getting-Started)
  * [Options](https://github.com/moxiecode/plupload/wiki/Options)
  * [Events](https://github.com/moxiecode/plupload/wiki/Uploader#wiki-events)
  * [Methods](https://github.com/moxiecode/plupload/wiki/Uploader#wiki-methods)
  * [Plupload in Your Language](https://github.com/moxiecode/plupload/wiki/Plupload-in-Your-Language)
  * [File Filters](https://github.com/moxiecode/plupload/wiki/File-Filters) 
  * [Image Resizing on Client-Side](https://github.com/moxiecode/plupload/wiki/Image-Resizing-on-Client-Side) 
  * [Chunking](https://github.com/moxiecode/plupload/wiki/Chunking) 
  * [Upload to Amazon S3](https://github.com/moxiecode/plupload/wiki/Upload-to-Amazon-S3) 
* [FAQ](https://github.com/moxiecode/plupload/wiki/Frequently-Asked-Questions)
* [Support](https://github.com/moxiecode/plupload/blob/master/readme.md##support)
  * [Create a Fiddle](https://github.com/moxiecode/plupload/wiki/Create-a-Fiddle)
* [Contributing](https://github.com/moxiecode/plupload/blob/master/readme.md#contribute)
* [License](https://github.com/moxiecode/plupload/blob/master/readme.md#license)
* [Contact Us](http://www.moxiecode.com/contact.php)

<a name="backstory" />
### Backstory

Plupload started in a time when uploading a file in a responsive and customizable manner was a real pain. 
Internally, browsers only had the `input[type="file"]` element. It was ugly and clunky at the same time. 
One couldn't even change it's visuals, without hiding it and coding another one on top of it from scratch. 
And then there was no progress indication for the upload process... Sounds pretty crazy today.

It was very logical for developers to look for alternatives and writing their own implementations, using 
Flash and Java, in order to somehow extend limited browser capabilities. And so did we, in our search for 
a reliable and flexible file uploader for 
our [TinyMCE](http://www.tinymce.com/index.php)'s
[MCImageManager](http://www.tinymce.com/enterprise/mcimagemanager.php). 

Quickly enough though, Plupload grew big.  It easily split into a standalone project. 
With major *version 2.0* it underwent another huge reconstruction, basically 
[from the ground up](http://blog.moxiecode.com/2012/11/28/first-public-beta-plupload-2/), 
as all the low-level runtime logic has been extracted into separate [File API](http://www.w3.org/TR/FileAPI/) 
and [XHR L2](http://www.w3.org/TR/XMLHttpRequest/) pollyfills (currently known under combined name of [mOxie](https://github.com/moxiecode/moxie)), 
giving Plupload a chance to evolve further.

<a name="structure" />
### Structure

Currently, Plupload may be considered as consisting of three parts: low-level pollyfills,