responsive-tooltip/responsive-tooltip.js at master · ItayXD/responsive-tooltip · GitHub

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jQuery( document ).ready( function()
{
    var targets = jQuery( '[rel~=tooltip]' ),
        target  = false,
        tooltip = false,
        title   = false;

    targets.bind( 'mouseenter', function()
    {
        target  = jQuery( this );
        tip     = target.attr( 'title' );
        tooltip = jQuery( '<div id="tooltip"></div>' );

        if( !tip || tip == '' )
            return false;

        target.removeAttr( 'title' );
        tooltip.css( 'opacity', 0 )
               .html( tip )
               .appendTo( 'body' );

        var init_tooltip = function()
        {
            if( jQuery( window ).width() < tooltip.outerWidth() * 1.5 ) {
                tooltip.css( 'max-width', jQuery( window ).width() / 2 );
            } else {
                tooltip.css( 'max-width', 340 );
            }

            var pos_left = target.offset().left + ( target.outerWidth() / 2 ) - ( tooltip.outerWidth() / 2 );
            var pos_top  = target.offset().top - jQuery(document).scrollTop() - tooltip.outerHeight() - 20;

            if( pos_left < 0 ) {
                pos_left = target.offset().left + target.outerWidth() / 2 - 20;
                tooltip.addClass( 'left' );
            } else {
                tooltip.removeClass( 'left' );
            }

            if( pos_left + tooltip.outerWidth() > jQuery( window ).width() ) {
                pos_left = target.offset().left - tooltip.outerWidth() + target.outerWidth() / 2 + 20;
                tooltip.addClass( 'right' );
            } else {
                tooltip.removeClass( 'right');
            }

            if( pos_top < 0 ) {
                var pos_top  = target.offset().top + target.outerHeight();
                tooltip.addClass( 'top' );
            } else {
                pos_top  = target.offset().top - tooltip.outerHeight() - 20;
                tooltip.removeClass( 'top' );
            }

            tooltip.css( { left: pos_left, top: pos_top } )
                   .animate( { top: '+=10', opacity: 1 }, 50 );
        };

        init_tooltip();
        jQuery( window ).resize( init_tooltip );

        var remove_tooltip = function()
        {
            tooltip.animate( { top: '-=10', opacity: 0 }, 50, function()
            {
                jQuery( this ).remove();
            });

            target.attr( 'title', tip );
        };

        target.bind( 'mouseleave', remove_tooltip );
        tooltip.bind( 'click', remove_tooltip );
    });
});