[sequenceDiagram] How about implementing support for broadcast messages?

[rafaeldelucena]

Hello,

I love mermaid, is pretty straightforward and I use in most of my projects. But there is a feature that I miss which is broadcast messages (useful for events) in the Sequence Diagrams.

I can help you with that, if you do not have time for it, but I'm just asking if this make sense.

I have thought about an operator like <-> <<->> or even <--> and <<-->> respecting the same syntax for the usual arrows.

Any thoughts about it?

Thank you!

[knsv]

That sounds super! I think we should add the feature and I would gladly accept your help.

I think the syntax might need some extra thoughts though as <---> could be interpreted as a tag by the browser and could make things harder.

[rafaeldelucena]

About some thoughts I think something like <-A->: state changed meaning that A broadcast the message state changed to all other participants.

What do you think?

[knsv]

Looks good! I will add this issue to the 8.2.0 project and assign to you.

[IOrlandoni]

Hey, @rafaeldelucena. Any progress on this? Anything we can help you with?

[rafaeldelucena]

Hi @IOrlandoni, not yet, but I pretend to take a look in the weekend.

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