leanModal.js/jquery.leanModal.js at master · gresakg/leanModal.js · GitHub

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(function($){

    $.fn.extend({

        leanModal: function(options) {

            var defaults = {
                top: 100,
                overlay: 0.5,
                closeButton: null,
		focusId: null
            }

            var overlay = $("<div id='lean_overlay'></div>");

            $("body").append(overlay);

            options =  $.extend(defaults, options);

            return this.each(function() {

                var o = options;

                $(this).click(function(e) {

              	var modal_id = $(this).attr("href");

				$("#lean_overlay").click(function() {
                     close_modal(modal_id);
                });

                $(o.closeButton).click(function() {
                     close_modal(modal_id);
                });

              	var modal_height = $(modal_id).outerHeight();
        	  	var modal_width = $(modal_id).outerWidth();

        		$('#lean_overlay').css({ 'display' : 'block', opacity : 0 });

        		$('#lean_overlay').fadeTo(200,o.overlay);

        		$(modal_id).css({

        			'display' : 'block',
        			'position' : 'fixed',
        			'opacity' : 0,
        			'z-index': 11000,
        			'left' : 50 + '%',
        			'margin-left' : -(modal_width/2) + "px",
        			'top' : o.top + "px"

        		});

        		$(modal_id).fadeTo(200,1);
			$(o.focusId).focus();
                e.preventDefault();

              	});

            });

			function close_modal(modal_id){

        		$("#lean_overlay").fadeOut(200);

        		$(modal_id).css({ 'display' : 'none' });

			}

        }
    });

})(jQuery);