Affichage du type et de la taille des documents pdf

addSizes.js

function hdrDetails(index, elm, length, type) { 
	// divide the length into its largest unit
	var units = [
		[1024 * 1024 * 1024, 'Go'],
		[1024 * 1024, 'Mo'],
		[1024, 'Ko'],
		[1, 'bytes']
	];
	
	for(var i = 0; i < units.length; i++){
		var unitSize = units[i][0];
		var unitText = units[i][1];
		
		if (length >= unitSize) {
			length = length / unitSize;
			// 1 decimal place
			length = Math.ceil(length * 10) / 10;
			var lengthUnits = unitText;
			break;
		}
	}
	var len = $(elm).eq(index).text().length;  //check the link’s text length 
	if(len > 0) { 
		$(elm).eq(index).wrap('<span class="doc-link '+type+'-link" />');

		//add a file size
		$(elm).eq(index)
		.before('<i class="icon-download"></i> ') 
		.after(' <span class="size">('+type+', '+length+' '+lengthUnits+')</span>');
	}
	
} 
$(function() { 
	var elm="a[href$='.pdf']"
	
	$(elm).each(function(index, value) { 
		var bits = this.href.split('.');
		var type = bits[bits.length -1];
		// On vérifie que le lien vers le fichier ne pointe pas sur un site externe
		if (value.hostname && value.hostname == location.hostname) { 
			$.ajax({ 
				type: "HEAD", 
				url: $(this).attr("href"), 
				cache :true,
				complete: function(xhr, textStatus) { 
					var length=xhr.getResponseHeader("content-length"); 
					if(xhr.status == 200) { 
						hdrDetails(index, elm, length,type); //call the calculation fn 
					}else{ 
						$(elm).eq(index).after("<span> (Fichier introuvable)</span>"); 
					} 
				} 
			}); 
		} 
	}); 
});