Mjt is a Javascript application framework that can run entirely in a web browser. It has three main components:
mjt.Template is a full-featured and extremely fast HTML/XML templating system. Server-side web frameworks rely heavily on templating engines: mjt.Template is similarly useful in the browser.
mjt.Task is a powerful asynchronous framework for JS. Asynchronous operations described using mjt.Task are easily composed and chained.
Mjt.freebase is an interface to the Freebase web service using mjt.Task.
mjt.App is a simple in-browser web framework for building single-page applications.
Mjt has been used (in combination with jQuery and CodeMirror) to build a complex in-browser Javascript development environment, the Freebase App Editor. Mjt.Template also provides server-side templating for the hosted Freebase Apps service.
If you can get your data from a JSON-aware web service, creating a Mjt application is the quickest way to get that data displayed in a browser with complete control of the HTML formatting. You can run the application from your local filesystem or share it on any web server as static files. No server-side support is necessary - all the work can take place in the browser using Javascript.
Mjt is particularly useful with JSONP services that return JSON values and accept a callback= parameter. Most modern JSON web services support this feature, and with these services you can use Mjt to build "mash-ups" that incorporate data from services on multiple hosts.
Many of the Mjt examples are now Acre examples for ease of hosting, but there are several browser-side examples.
The examples primarily use Freebase data sources but there are examples using Yahoo image search and the Google feed API as well.
For a step-by-step introduction to the Mjt template language, as well as an example of Mjt in action, start with the intro tour.
Here's a very simple mjt page. If you visit it at examples-minimal you should see that the $mjt.VERSION string has been substituted:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
<script type="text/javascript" src="http://mjtemplate.org/dist/mjt-0.6/mjt.js"></script>
<title>a minimal mjt example</title>
</head>
<body onload="mjt.run()" style="display:none">
running mjt version $mjt.VERSION
</body></html>
Mjt is hosted on Google code at http://code.google.com/p/mjt.
You can copy mjt.js to your own web server or include a minimized version from http://freebaselibs.com/static/mjt/mjt-0.9.2/mjt.min.js. This includes the parts of Mjt necessary for building Freebase applications: some files are not included.
This version is also available at http://freebaselibs.com/static/mjt/mjt-0.9.2/mjt.js which loads files from http://freebaselibs.com/static/mjt/mjt-0.9.2/src
Older versions can be found at http://freebaselibs.com/static/mjt.
Mailing list TBA. For now, subscribe to developers@freebase.com or watch blog.freebase.com
Mjt is distributed under a two-clause BSD open source license:
Copyright (c) 2007-2009, Metaweb Technologies, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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