QuickUI turns out to be a natural fit for CoffeeScript. One of the nice features in CoffeeScript is that you can create classes with the language’s built-in “class” syntax. You can take advantage of that syntax to create new QuickUI control classes, simply by extending the base Control class or any other control class:
# A simple button class in CoffeeScript class window.HelloButton extends BasicButton constructor: -> return Control.coffee() inherited: content: "Hello, world!" genericSupport: true
QuickUI control classes are subclasses of jQuery, so one of the key features in QuickUI’s new support for CoffeeScript is actually being able to create jQuery subclasses in CoffeeScript. CoffeeScript generates a prototype-based class that is similar to the classes produced by jQuery’s $.sub() feature (a core part of jQuery that will be moved to a plugin in jQuery 1.8), but jQuery’s classes require a rather Byzantine construction sequence. This is handled through the boilerplate constructor shown above. When Control.coffee() is called, it fixes up the CoffeeScript class so that it conforms to jQuery’s notion of how its class constructors should work.
Creating QuickUI controls in CoffeeScript currently requires a plugin, but the plan is to fold CoffeeScript support directly into the quickui.js runtime. Read the documentation for QuickUI support of CoffeeScript for more details.
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