Functions for Links

Written by Kasyan

Link usage

function LinkUsage(link) {
	var links = gDoc.links;
	var counter = 0;
		for (var i =  0; i < links.length; i++) {
		if (link.filePath == links[i].filePath) {
			counter++;
		}
	}
	return counter;
}

Find the largest link

function FindLargestLink(link) {
	var theLargestLink, theLink, image, horScale, verScale;
	var links = gDoc.links;
	var multyLinks = [];
	for (var i =  0; i < links.length; i++) {
		if (link.filePath == links[i].filePath) {
			multyLinks.push(links[i]);
		}
	}

	for (var k =  0; k < multyLinks.length; k++) {
		theLink = multyLinks[k];
		image = theLink.parent;
		horScale = image.absoluteHorizontalScale;
		if (theLargestLink == undefined) {
			theLargestLink = theLink;
		}
		else if (horScale > theLargestLink.parent.absoluteHorizontalScale) {
			theLargestLink = theLink;
		}
	}
	return theLargestLink;
}

Update all outdated links

function UpdateAllOutdatedLinks() {
	var link;
	for (var i = gDoc.links.length-1; i >= 0; i--) {
		link = gDoc.links[i];
		if (link.status == LinkStatus.LINK_OUT_OF_DATE) link.update();
	}
}

How to find the MIME type of a link

var mimetype = {
jpg:'image/jpeg',
jpe:'image/jpeg',
jpeg:'image/jpeg',
png:'image/png',
pdf:'application/pdf'
};
imgs = app.activeDocument.allGraphics;
result = [];
for (i=0; i<imgs.length; i++)
result.push(imgs[i].itemLink.filePath+' = '+mimetype[String(imgs[i].itemLink.filePath.match(/[^.]+$/)).toLowerCase()]);
alert(result.join('\r'));