I need to know when the user decides to close the document he is on, so I found on various sites the "beforeClose" event.
I have 2 problems:
Here is how I currently do it in my jsx file :
main();
function main() {
app.addEventListener("beforeClose", detectClose);
}
function detectClose() {
alert('The document is closed');
}
Thank you in advance for your help !
Not sure if understand how it's supposed to work, but I see two options. (1) You can check if there already are listener for the same event type and add the new listener only if there are no such listeners:
main();
function main() {
if (if_not_exists('beforeClose')) app.addEventListener('beforeClose', detectClose);
}
function detectClose() {
alert('The document is closed');
}
function if_not_exists(eventType) {
var listeners = app.eventListeners;
var i = listeners.length
while (i--) if (listeners[i].eventType == eventType) return false;
return true;
}
(2) Or you can remove all listeners (for given event type) beforehand with a function like this:
function remove_listeners(eventType) {
var listeners = app.eventListeners;
var i = listeners.length
while (i--) if (listeners[i].eventType == eventType) listeners[i].remove();
}