tc:panel, tc:box, and maybe tc:sheet change attribute or facet
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Key: TOBAGO-586
URL: https://issues.apache.org/jira/browse/TOBAGO-586
Project: MyFaces Tobago
Issue Type: New Feature
Components: Core
Affects Versions: 1.0.13
Environment: any, maybe even in a common branch with other myFaces
implementations
Reporter: Zied Hamdi
I need to keep track of any change inside a panel, this is a frequent case in
UI developement: e.g: to enable a save button or open a popup 'do you want to
save changes' (when any occured).
A few years ago I made an analogous mecanism in swing: I extended Panel.add()
(and remove()) and made it add a listener to the added component to check if
changes has occured). The extended panel must it self implement the onChange
event features and interfaces to respond to nested panels events (and forward
them to its parent). The opposite sens was also possible with a visitor that
did an action on any element in the container.
Containers in Tobago like panel, box or (editable) sheet could have a 'change'
facet (maybe also a disable attribute to enable/disable (with the visitor
pattern) all elements in the container, but this must maybe done in another
feature request).
Other common containers like f:subview, and f:form can also implement this
feature.
Regards,
Zied
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