Detecting if the file input dialog is open

Question

How can I go about detecting if the file input dialog is currently open?

I\'m trying to integrate some file upload functionality into a popup (bootstrap style) model

Answer 1

In my case works this code on jQuery:

// esc must close popup
$("body").keyup(function(e) {
    if (27 == e.keyCode) {
        hidepopup();
    }
});

// input in popup
var $file = $("input:file");
// keyup will be catched for input, not for body
$file.bind("click", function(e) {
    $(this).focus();
});
// keyup catching will be changed back to body after selecting file
$file.bind("change", function(e) {
    $(this).blur();
});
// we catched esc keyup, so change esc catching back to the body
$file.keyup(function(e) {
    if (27 == e.keyCode) {
        $(this).blur();
        // i don't know, why it works with return false, because i am not js programmer ), but cancelBubble or e.preventDefault is not working
        return false;
    }
});