Javascript - Custom Confirm Dialog - replacing JS confirm

Question

This may be a easy answer-

In my JS I've replaced JS's confirm function with my own. Which basically and simply looks like this:

function confirm(i){
    var options = '<br/><br/><input class="button1" value="Yes" type="button" onclick="return true"> <input class="button1" value="No" type="button" onclick="return false">';
    $('#text').html(i+options);
    $('#confirmDiv').fadeIn('fast');
}

Obviously the return true / false didn't work, or else I wouldn't be asking!

In another function i've got (So you get the picture):

    var con = confirm("Are you sure you'd like to remove this course?");
    if(!con){return;}

How can I get confirm to return the value directly? I'd assume it's return {this.value} or so?

Thanks!

Answer 1

Your problem is that your custom confirm isn't modal. That means that when your confirm is shown, the code runs on. There is no chance for you to wait for the user's choice within confirm() and return it from there.

As far as I know, there is no way to emulate the behaviour of a modal confirmation dialog in Javascript (except for the non-standard ShowModalDialog().)

The usual way of doing this is adding a function() { ... } callback to each button's click event, and doing whatever the "ok" click is supposed to do in there.

Answer 2

My way around this problem was to add some arbitrary data to the object, and check for that data on click. If it existed, proceed with the function as normal, otherwise confirm with a yes/no (in my case using a jqtools overlay). If the user clicks yes - insert the data in the object, simulate another click and wipe the data. If they click no, just close the overlay.

Here is my example:

$('button').click(function(){
    if ($(this).data('confirmed')) {
        // Do stuff
    } else {
        confirm($(this));
    }
});

And this is what I did to override the confirm function (using a jquery tools overlay):

window.confirm = function(obj){
    $('#dialog').html('\
        <div>\
            <h2>Confirm</h2>\
            <p>Are you sure?</p>\
            <p>\
                <button name="confirm" value="yes" class="facebox-btn close">Yes</button>\
                <button name="confirm" value="no" class="facebox-btn close">No</button>\
            </p>\
        </div>').overlay().load();
    $('button[name=confirm]').click(function(){
        if ($(this).val() == 'yes') {
            $('#dialog').overlay().close();
            obj.data('confirmed', true).click().removeData('confirmed');
        } else {
            $('#dialog').overlay().close();
        }
    });
}