I wrote a four part tutorial recently on how to write Google gadgets. This tutorial expands beyond a simple “Hello World” sample, and dives into the key concepts of writing Gadgets. The tutorial uses WSO2 Gadget Server as the hosting engine for the sample gadgets.
When writing a Google gadget, you need to understand the anatomy of a gadget, and have a good idea of what each section of the gadget is meant to be, and how to use each section to maximize the utility of the gadget.
The tutorial explains the use of these sections in detail, and how to make use of each over the span of the sour parts of the tutorial.
Google gadgets can be used as a powerful tool, specially as a visualization and presentation tool in the SOA space. It offers features that can help you build versatile, productive and powerful dashboards for your day to-day monitoring as well as for data analysis for decision support.
The series of tutorials start simple and go on explaining how to build gadgets that can be re-used, and use various views and gadget and user preferences.
Here is the TOC:
Writing Google Gadgets - A tutorial - Part 01
Basic Gadget Example - Hello Gadget
Pulling Information from the Web into a Gadget
Pulling Information into a Gadget with makeRequest
Dynamic Height with Google Gadgets
Writing Google Gadgets – A tutorial – Part 02
Processing Fetched HTML with JavaScript
Using TEXT vs DOM Content Type when Working with HTML
Using External JavaScript Libraries
Writing Google Gadgets - A tutorial - Part 03
Using enum Data Type as an Options List
Integer Settings with String Data Type
Setting Preferences from Within the Gadget
Writing Google Gadgets – A tutorial – Part 04
Versatility of Google Gadgets as a Presentation Instrument
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