InDesign script: Prompts a warning if some embedded links exist in the doc before saving

checkEmbed.jsx

(function(/*any*/ev,  ff,t,cond,s,z)
//----------------------------------
// [This InDesign script CAN be used as a startup script.]
// Prompts a warning if some UNembedded links exist in the doc;
// the save/saveAs task is then interrupted.
// [FIX230222] Made a confusion on the script purpose:
// now detect UNembedded links!
// Targeted events: beforeSave|beforeSaveAs
{
	const EMBD = LinkStatus.LINK_EMBEDDED.toString();

	if( (ev||0).isValid )
	{
		cond = 0===ev.eventType.indexOf('beforeSave')            // Make sure you're managing the right event
		&& (!app.modalState)                                     // app.modalState would cause `alert` to fail.
		&& ev.fullName                                           // Safer: the target File should be known at this point.
		&& (t=ev.target).isValid                                 // Valid document required.
		&& (t=t.links).length                                    // No need to work if there are no links.
		;
		if( cond )
		{
			s = ('§'+t.everyItem().status.join('§')).replace(RegExp('§'+EMBD,'g'),'');
			z = -1 + s.split('§').length ;
			if( z > 0 )
			{
				alert( "There are " + z + " un-embedded links. Please ensure they are embedded before saving." );
				ev.preventDefault();
			}
		}
	}
	else
	{
		// Install the event listener if not yet installed.
		// ---
		const UID = 'myCheckEmbedHandler';
		(ff=File($.fileName)).exists
		&& !((t=app.eventListeners).itemByName(UID)).isValid
		&&
		(
			(t.add('beforeSave',ff)).name=UID,
			(t.add('beforeSaveAs',ff)).name=UID+'2'
		);
	}

})($.global.evt);

Oups: my original code identifies embedded links while the expected behavior is, on the contrary, to point out the unembedded links. Well, that's the complementary count! Can be easily fixed…

Should work now!