Add Effect to layers with expressions erros in all comps

[Dan Ebberts]

You’ll need a recursive property sniffer to check for expression errors. Something like this should be close:

var foundOne;
function processProperty(theProp){
	if (theProp.propertyType == PropertyType.PROPERTY){
		if (theProp.canSetExpression && theProp.expressionError != ""){
			foundOne = true;
		}
	}else{ // must be a group
		for (var i = 1; i <= theProp.numProperties; i++){
			if (! foundOne) processProperty(theProp.property(i));
		}
	}
}
var myComp, myLayer;
for (var i = 1; i <= app.project.numItems; i++){
	if (app.project.item(i) instanceof CompItem){
		myComp = app.project.item(i);
		for (var j = 1; j <= myComp.numLayers; j++){
			myLayer = myComp.layer(j);
			if (! myLayer.locked){
				foundOne = false;
				processProperty(myLayer);
				if (foundOne){
					myLayer.property("Effects").addProperty("ADBE Fill");
				}
			}
		}
	}
}

[Otávio Nascimento]

Thank you Dan. It helps a lot. But maybe I need other solution for my problem:

I made a plugin and used it a lot in my project. Now I want to add a ‘checkbox’ in my plugin. If I add it I will receive a warning in my project and will glitchy my project. There is a good solution for it?

My idea was to remove the plugin from all the project and add after I edited the plugin but I noticed that I will lose the keyframes and expressions.

[Dan Ebberts]

It’s been a while since I’ve done much with plugin code, but I seem to recall that when you add a new control to your plugin, you just need to make and assign it a new, unique id and it should be backwards compatible. It sounds like you may have had a different experience.