Friday, July 06, 2007
New Dojo Offline Release
I am proud to announce a new beta release of Dojo Offline. This release has a huge amount of exciting new functionality, including a full port to Google Gears, a port from Dojo 0.4 to 0.9, and more.
Dojo Offline is an open-source toolkit that makes it easy to create sophisticated, offline web applications. It sits on top of Google Gears, a plugin from Google that helps extend web browsers with new functionality. Dojo Offline makes working with Google Gears easier; extends it with important functionality; creates a higher-level API than Google Gears provides; and exposes developer productivity features. In particular, Dojo Offline provides the following functionality:
- An offline widget that you can easily embed in your web page with just a few lines of code, automatically providing the user with network feedback, sync messages, offline instructions, and more
- A sync framework to help you store actions done while offline and sync them with a server once back on the network
- Automatic network and application-availability detection to determine when your application is on- or off-line so that you can take appropriate action
- A slurp() method that automatically scans the page and figures out all the resources that you need offline, including images, stylesheets, scripts, etc.; this is much easier than having to manually maintain which resources should be available offline, especially during development.
- Dojo Storage, an easy to use hashtable abstraction for storing offline data for when you don't need the heaviness of Google Gear's SQL abstraction; under the covers Dojo Storage saves its data into Google Gears
- New ENCRYPT() and DECRYPT() SQL keywords that you can mix in when using Dojo SQL, to get transparent cryptography for columns of data. Cryptography is done on a Google Worker Pool thread, so that the browser UI is responsive.
- Integration with the rest of Dojo, such as the Dojo Event system
To get started: See the Dojo Offline home page; read the new tutorial titled "Creating Offline Web Applications With Dojo Offline"; download the new Dojo Offline 0.9 beta SDK; and play with the demos.
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