Yesterday's release of Opera Widgets SDK beta grants Web developers the ability to create Web applications capable of running on all devices.
The SDK is W3C standards-compliant and compatible with Opera 9.5 or higher. It utilises Web technologies such as HTML, CSS and media queries, JavaScript and Ajax for developing widgets.
The Opera Widgets SDK is equipped with an emulator, libraries, documentation and the Opera Dragonfly debugger.
A video tour is available to get started quickly.
Below is a more detailed description of some of the elements of the package:
Widget Emulator
This tool is designed to let you preview how your widgets will get displayed on different devices such as your computer, mobile and TV. The screenshots below show howthe My Opera default widget renders in different environments.
Desktop
Mobile phone — landscape view
Mobile phone — portrait view
TV
To view your own widget,
<script type="text/javascript">if(parent.emulator)parent.emulator.begin(window);</script>Libraries
A number of JavaScript libraries are available to simplify your coding, including animation and testing media queries. You can view the whole list of libraries here.
Documentation
This section offers a wealth of information on developing widgets, including the Opera Widgets specification, the Opera Widget Core DOM Reference and more.
User forum
A community forum dedicated to widgets where you can get additional help from.
Opera Dragonfly
Opera Dragonfly allows you to inspect and debug your JavaScript and CSS.
If you are interested in developing widgets for different devices, test out the Opera Widget SDK and share your thoughts.
— Posted by Lana Kovacevic
