extension communication paths

[birnerseff]

Hi, I am trying to understand what is possible and what not.

a) an extedscript can send an event to a CEP panel. Can the panel return any data?

b) is there a way for an extendscript to detect when the active document changes? (AI specific, ID has app.addEventListener()

c) can a CEP panel talk to an extendscript panel? (It can have its own extendscript, but they do not seem to share variables)

Thanks for any pointers....

[Ten A]

You can call ExtendScritp from the CEP side with evalScript method in CSInterface class. And ExtendScript can dispatch events with messages using PlugPlugInterface.
Here is a concept project you can refer to.
https://github.com/ten-A/CreativeSuiteSDK_Experimentals/tree/master/net.sytes.chuwa.callbacktest 

If you want to support events, you need to make a plug-in similar below.

https://github.com/ten-A/EventAdapter 

[birnerseff]

Hi, and thanks.

I am already using the plugplug method. I have a html panel and two separate extendscript/scriptUI panels. The latter ones sends an event to the former, to inform it about things it changed. In fact a history of changes is collected. When the file is saved, the html panel responds to the save event and sends the collected info to a database. What I am still missing is a way for the extendscript panel to get a response from the html (e.g. number of events sent during the current session)

The eventadapter looks very useful, but I would have to convert a scriptUI panel into a html one in order to listen to these events?