Using jQuery to know when @font-face fonts are loaded?

Question

I am using @font-face and I hate that Firefox shows the default font, waits to load the @font-face font, then replaces it. So the whole page flashes with the new font.

Answer 1

Perhaps..

Create a z-index: -10 div and fill it with a lot of text (with a 'normal' font). At document.ready() or another event:

var originalnumber = $( div ).width() + $( div ).height() + $( div ).offset().top + $( div ).offset().left;

$( div ).css( 'font-family', 'MyPrettyWebfont' );

var interval = setInterval( function() {
    var number = $( div ).width() + $( div ).height() + $( div ).offset().top + $( div ).offset().left;

    if ( number !== originalnumber ) {
        // webfont is loaded and applied!
        clearInterval( interval );
    }
}, 10 );