April 2007
Intermediate to advanced
511 pages
12h 4m
English
Content preview from Programming FirefoxBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 12. XUL Widget Reference
Complex open source software such as the Firefox framework can be an intimidating read when you’re trying to make sense of its nuances and structure. But a basic understanding of how XUL widgets are defined and implemented is essential if developers are to take full advantage of the rich features of such a framework.
This chapter provides a basic overview of how to define and implement XUL widgets, including a discussion of:
The organization of file families that define XUL widgets
How and where core classes are defined
How to read the XML Bindings Language (XBL) bindings to determine a widget’s properties and methods
A reference list of the XUL widgets that comprise interface elements
Browser Package Files
In this book we have discussed a large number of XUL elements—XML tags that the Firefox framework reads as instructions for painting an interface and providing services to an application. This section discusses a subset of XUL elements: the widgets that provide the appearance and interaction tools for an application’s interface.
All XUL widgets have attributes whose values are obtained and modified by the get/setAttribute("someAttributeName") method, properties whose values are obtained by a dot (.) reference such as someElement.someProperty, and methods.
Methods that access attributes by way of getAttribute( ) return the string assigned to the attribute in the XUL source file, and property references return the value of an expression (e.g., Boolean ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.