Created
May 13, 2011 06:11
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Work in Progress CoffeeScript Widget Factory
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# Base widget class | |
class Widget | |
@widgetClass: 'widget_base' | |
@defaults: {} | |
# Apply options and data() options to defaults hash | |
constructor: (@$element, options={}) -> | |
# The descendent constructor | |
actualConstructor = @__proto__.constructor | |
@options = @_getDefaults actualConstructor, options | |
# Add a class to the entire widget | |
@$element.addClass actualConstructor.widgetClass | |
# Compile the defaults for this level | |
_getDefaults: (scope, overrides) -> | |
opts = {} | |
for key, value of scope.defaults | |
opts[key] = @$element.data(key) || value | |
for key, value of overrides | |
opts[key] = value | |
if scope.__super__?.constructor.defaults | |
@_getDefaults(scope.__super__.constructor, opts) | |
else | |
opts | |
# Bind events in class scope convenience method | |
_bind: (scope, eventName, callbackName) -> | |
self = this | |
scope.bind eventName, (evt) -> self[callbackName](evt, this) | |
@setupPlugin: () -> | |
name = @widgetClass | |
classConstructor = @ | |
$.fn[name] = (options) -> | |
@each -> | |
$elem = $ this | |
$elem.data( | |
name | |
new classConstructor $elem, options | |
) if not $elem.data name |
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