1 files changed, 46 insertions, 0 deletions
diff --git a/apps/files_imageviewer/js/lightbox.js b/apps/files_imageviewer/js/lightbox.js
new file mode 100644
index 00000000000..dd091aa0d77
--- /dev/null
+++ b/apps/files_imageviewer/js/lightbox.js
@@ -0,0 +1,46 @@
+$(document).ready(function() {
+	images={};//image cache
+	FileActions.register('image','View',function(filename){
+		var location='ajax/download.php?files='+filename+'&dir='+$('#dir').val();
+		var overlay=$('<div id="lightbox_overlay"/>');
+		$( 'body' ).append(overlay);
+		var container=$('<div id="lightbox"/>');
+		$( 'body' ).append(container);
+		if(!images[location]){
+			var img = new Image();
+			img.onload = function(){
+				images[location]=img;
+				showLightbox(container,img);
+			}
+			img.src = location;
+		}else{
+			showLightbox(container,images[location]);
+		}
+	});
+	$( 'body' ).click(hideLightbox);
+	FileActions.setDefault('image','View');
+});
+
+function showLightbox(container,img){
+	var maxWidth = $( window ).width() - 50;
+	var maxHeight = $( window ).height() - 50;
+	if( img.width > maxWidth || img.height > maxHeight ) { // One of these is larger than the window
+		var ratio = img.width / img.height;
+		if( img.height >= maxHeight ) {
+			img.height = maxHeight;
+			img.width = maxHeight * ratio;
+		} else {
+			img.width = maxWidth;
+			img.height = maxWidth * ratio;
+		}
+	}
+	container.empty();
+	container.append(img);
+	container.css('top',Math.round( ($( window ).height() - img.height)/2));
+	container.css('left',Math.round( ($( window ).width() - img.width)/2));
+}
+
+function hideLightbox(){
+	$('#lightbox_overlay').remove();
+	$('#lightbox').remove();
+}
+\ No newline at end of file