mOxie is combined name for XHR2 and File API pollyfills that we've extracted from Plupload in order to make it more flexible and give it opportunity for further growth. But now that pollyfills are separate, they can be used independently.

XHR2 and File API pollyfills are multi-runtime, which means that they will fallback to Flash and SilverLight (additionally there's Java runtime in production) or even "good old" HTML4, when there are no HTML5 capabilities found in current browser.

• Building Instructions
  • Prerequisites
  • Compile JavaScript
  • Compile Flash
  • Compile Silverlight
  • Generate API Documentation
  • Build Packages
• Getting Started
  • File Picker
  • XHR L2 pollyfill
  • Image Wrapper
• API Reference
• Support
• Contribute

It may sound a bit odd, but the best building environment for mOxie is Windows computer. Mainly because it is not currently possible to build Silverlight component on alternative platforms. There used to be a Moonlight project, which was meant to fill in the gap for *nix systems, but there was no noticeable activity on the site since 2009, its feature-set has freezed somewhere in the mid-Silverlight 4, and more importantly, a component that is produced after compilation is not exactly a Silverlight component, hence the alternative name and all the compatibility issues in the latest browsers.

So, although these instructions are quite generic, they still have Windows workstation in mind. If you do not have Windows workstation, you can easily virtualize one.

First of all you will need to download mOxie package from here on github and extract it to your workspace directory.

Building environment is based on Node.js, mainly because it is cool and easy, but even more importantly, because it is powered by JavaScript (we love JavaScript :). Node.js binaries (as well as Source) are available for all major operating systems.

In addtion to Node.js some additional modules are required, simply change your working directory to where you have extracted mOxie package and run: node bootstrap. All dependencies will be downloaded and installed automatically.

Note: currently for unknown reason, locally installed Node.js modules on Windows, may not be automatically added to the system PATH. So if jake commands below are not recognized you will need to add them manually:

set PATH=%PATH%;%CD%\node_modules\.bin\

But as I mentioned it doesn't have to be monolithic anymore and you can include only the parts that you require. For example basic file uploader, without progress indication support can get as small as 12kb gzipped. In order to leverage that granularity you must invoke JavaScript compiler with the list of components that you absolutely want to use and list of runtimes to fallback to. For example:

jake mkjs[file/FileInput,xhr/XMLHttpRequest] runtimes=html5,flash

This will compile JavaScript file having support for the file picker and XMLHttpRequest Level 2 pollyfill with two runtimes - HTML5 and Flash (resulting file size ?).

Currently there are only several major components that you should care about (the rest will be pulled in as dependecies automatically). These are:

• file/FileInput
• file/FileDrop
• file/FileReader
• xhr/XMLHttpRequest
• image/Image

And four runtimes (Java is in production right now):

• HTML5
• Flash
• Silverlight
• HTML4

Use combination of these in jake mkjs to acquire customized JavaScript file.

To build Flash component you will also need Flex 4.x SDK, which is freely available from Adobe site. Flex SDK comes as a package, not binary. So you will have to manually extract it somewhere and ensure that compiler is available across the system. Depending on a platform you might also require to install Java Runtime Environment (JRE). To put Flex compiler (mxmlc) into the system PATH, execute the following in your command-prompt window:

For Windows (we assume here that SDK was extracted to Program Files\flex_sdk_4.x, use your own path if it was different):

set PATH=%PATH%;%PROGRAMFILES%\flex_sdk_4.x\bin

*For nix (replace /opt/flex_sdk_4.x with the path to extracted SDK)

export PATH=$PATH:/opt/flex_sdk_4.x/bin

Although be warned, as this will set the system PATH for current session only, in order to set it forever, check your platform specific documentation.

Once you have it, you can run jake mkswf in your command-prompt, from mOxie directory and corresponding component files will get compiled and written to bin/flash/ directory. There will be two versions: Moxie.plus.swf, which includes client-side image manipulation logic, and Moxie.swf, twice as small, but without it.

To build Silverlight component you need .NET Framework 4 and Silverlight 4 SDK (and of course, as we mentioned above, a Windows PC). These are binary packages so you will not have to extract them manually, but you will still need to set the PATH to make compiler (msbuild.exe) available across the system. So after you install both, open your command prompt and type in something like this:

set PATH=%PATH%;%WINDIR%\Microsoft.NET\Framework\v4.x

Make sure that version suffix (v4.x) corresponds to actual .NET Framework version and physical folder where msbuild executable resides. Again be warned, that this will set the system PATH for current session only, in order to set it forever, check documentation specific to your platform.

Once you have msbuild.exe in the system PATH you can run jake mkxap and two Silverlight components will be compiled to bin/silverlight directory: Moxie.plus.xap, a version with image manipulation logic compiled in and much smaller Moxie.xap - without it.

JavaScript files contain descriptions for all public classes and methods as well as the examples of their typical usages. All of these informations can be easily extracted into a linked HTML-based API reference (thanks to YUIDoc).

To get the documentation, execute: jake docs. Reference will appear under docs/ folder.

• jake release - Generates full user and development packages.
• jake package - Generates full user package.
• jake package[comma-separated-list-of-components-to-include] runtimes=comma-separated-list-of-runtimes-to-use (see all available options)