TYPO3 Core

Well, FlashMessages :-) See typo3/sysext/core/Classes/Messaging/FlashMessageService.php
Those messages where some plugin can send "XYZ completed successfully" and some other component pick those up and show them at an appropriate place.

You mean that every Content Element should be able to send out these messages when certain conditions are satisfied?
so these messages are properties or attributes of the content element, right?

Or maybe some cObject that, when "rendered", will send a message to a queue? So the rendering wouldn't output anything - but trigger an action. When used with conditions or used with stdWrap-functionality you could use several places to trigger such a cObject to write a message and further down in the rendering fetch those messages again for display (or even fetch them from a Fluid-template).

Messaging is a toplevel part of the core. There is a FlashMessage and an ErrorpageMessage.

That gives this feature request some importance.

One could rephrase the request, to implement the Messaging feature of the core into TypoScript.

Maybe just as content-objects that write a flash-message as they are being "rendered"?

Usually TypoScript is only rendered once. Thinking of an object it would need to work similar to COA_INT or USER_INT.

I would think of a MESSAGE object to set the messages and a MESSANGER object to output the Messages in any form. The MESSAGE object would offer the types flash and errorpage for now.

Question: Could you place the MESSANGER object on top of the page to output messages from below?

That would require that the _INT processing is done at least twice. Isn't it done repeatedly anyway until all nested _INT are processed?

Benni Mack wrote:

Seriously? Flash Messages in TypoScript? In Frontend Output? what is a real use case here?

Also, styling / html output is a big question mark.

I don't see a real benefit here.

I think comment #4 shows how it could be done, thus basically just push a message into a message queue. Output is then done as usual and could cover e.g. global site/page messages. I could imagine this being quite useful.