CEP Panel: Event Listener Layer Selection

[Andrei Popa]

If you decide to create Script/Plugins for AE, you should get terminology correct.

Script = program created in ExtendScript(JavaScript plus some additions to fit Adobe products). EcmaScript 3 standard.
Extension = a script that works inside a web interface. I think you can use EcmaScript 6 inside the web part and EcmaScript 3 inside the script part.
Plugin = a whole different league. Programmed in C++. You can access about anything in AE with those. But are much much more complicated than scripts or extensions.

Now, for your answer.
I don’t have much experience with Extensions but have a fair bit with scripts.
And since an Extension is a script with web interface, I’m gonna take a wild guess and say no. I don’t think you can add things like layer.onSelect().

If you are new to Extensions, this tutorial could help you understand how they work.
https://www.youtube.com/watch?v=UXOvW659rek

Andrei
My Envato portfolio.

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[Mahmoud Elsafy]

Main .jsx

function getSelectedLayer() {

SL = app.project.activeItem.selectedLayers;

//return selected layer index or any other property

return SL.length != 0 ? SL[0].index : null

};

main .js in HTML

var csInterface = new CSInterface();

setInterval(() => {

csInterface.evalScript(“getSelectedLayer()”, function (result) {

if (result !== “null”) {

//Do something when layer is selected

$(‘#elemID’).html(‘Selected Layer index: ‘+ result);

}

});

}, 1000); // checks selected layer every one second