CEP: is there a way to listen to events in the app itself?

Forum|Forum|3 years ago
July 24, 2022
2 replies
1548 views

I know you can use CSInterface to listen to a few basic events such as "ApplicationActivate" and "

ThemeColorChanged":

const cs = new CSInterface();
cs.addEventListener(
    "com.adobe.csxs.events.ApplicationActivate",
    function () {
    }
);

In After-Effects, are there any other events that can be used? I could not find a list of events anywhere online, and it seems like other apps like Pohotoshop can listen to some changes made in the document, and if not, how would you tackle this?

Thanks in advance.

Saar

This topic has been closed for replies.

Mathias Moehl

Community Expert

Monitoring changes of the document is not possible, as far as I know. I think the Ae team is reluctant to add these kinds of features, since they invite extensions to do all kinds of potentially slow background processes, which could bring the performance of Ae down. In other words, these features would need to be used carefully and could create all kinds of issues.

Mathias Möhl - Developer of tools like BeatEdit and Automation Blocks for Premiere Pro and After Effects

zsaaroAuthor

Inspiring

Thank you Mathias. That makes a lot of sense.

S

shachar carmi

Community Expert

i'm not that fluent with the CEP API, but you can write a C plugin that would listen to events and leave flags in the javascript global scope which the CEP panel can read on idle. (or perhaps invoke the panel directly. i'm not sure if that's possible)

zsaaroAuthor

Inspiring

Thanks Shachar.

How familiar are you with the plugins API? How difficult would this be for someone who's only familiar with CEP and Extendscript?

S

shachar carmi

Community Expert

well, as C API project go, this specific task is pretty simple. alas, setting up the dev env and getting the plugins to compile correctly for the first time on a new machine is usually a pain...

did you look into UXP instead of CEP? perhpas it offers this functionality directly?

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