Javascript Windows.print() Callback - Determining When A Print Job Completes

Question: Is it possible to add a callback to the windows.print() function? I realize there isn't a native solution, but I was wondering if there is some sort of library that accom

Solution 1:

Seems like you want to listen for the afterprint event

window.addEventListener('afterprint', e =>console.log('Ready for next print job'));

Please note that this has low cross-browser support (FireFox 6+, IE)

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The MDN page also tells us that something similar can be achieved in webkit based browsers by adding a listener on matchMedia('print'), so you could shim it by writing something like the following for those browsers

window.matchMedia('print').addListener(mql => {
    if (!mql.matches) {
        window.dispatchEvent(newEvent('afterprint'));
    }
});

This should work in e.g. Google Chrome