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var lightBoxShown=false;
$(document).ready(function() {
images={};//image cache
FileActions.register('image','View',function(filename){
var location='ajax/download.php?files='+filename+'&dir='+$('#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));
lightBoxShown=true;
}
function hideLightbox(){
if(lightBoxShown){
$('#lightbox_overlay').remove();
$('#lightbox').remove();
}
}
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