WADecoration


Seaside-Component

Comment:

I am an abstract decoration around instances of WAComponent. I can be added to aComponent by calling #addDecoration: and I change the basic behaviour or look of a component. There are several methods that can be overriden to archive this:

- #renderContentOn: to emit xhtml around the decorated component. Call #renderOwnerOn: to let the owner emit its output.

- #processChildCallbacks: to intercept the callback processing of the owner.

- #handleAnswer: to intercept the answer processing.

Hierarchy:

ProtoObject
Object
WAPresenter
WADecoration

Summary:

instance variables:

next

methods:

instance class
as yet unclassified rendering no messages

Detail:

instance variables:

next
inferredType:
UndefinedObject

instance methods:

as yet unclassified
component

	^ self owner isDecoration
		ifTrue: [self owner component]
		ifFalse: [self owner]
handleAnswer: anObject

	(self owner handleAnswer: anObject) ifFalse:
		[self handleAnswer: anObject continueWith: [^ false]].
	^ true
handleAnswer: anObject continueWith: aBlock

	aBlock value
isDecoration

	^ true
isDelegation

	^ false
isGlobal

	^ false
isLocal

	^ (self isGlobal or: [self isDelegation]) not
nextPresentersDo: aBlock

	aBlock value: self owner
owner

	^ next ifNotNil: [next contents]
owner: aPresenter

	next ifNil: [next _ WAStateHolder new].
	next contents: aPresenter
remove

	self component removeDecoration: self

rendering
renderOwnerOn: html

	self owner ifNotNilDo: [:owner | owner renderWithContext: html context]

class methods:

^top


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