1 line
1.3 KiB
JavaScript
1 line
1.3 KiB
JavaScript
!function(e){e.fn.appear=function(a,r){var p=e.extend({data:void 0,one:!0,accX:0,accY:0},r);return this.each(function(){var r=e(this);if(r.appeared=!1,!a)return void r.trigger("appear",p.data);var n=e(window),t=function(){if(!r.is(":visible"))return void(r.appeared=!1);var e=n.scrollLeft(),a=n.scrollTop(),t=r.offset(),c=t.left,i=t.top,o=p.accX,f=p.accY,s=r.height(),d=n.height(),l=r.width(),u=n.width();i+s+f>=a&&i<=a+d+f&&c+l+o>=e&&c<=e+u+o?r.appeared||r.trigger("appear",p.data):r.appeared=!1},c=function(){if(r.appeared=!0,p.one){n.unbind("scroll",t);var c=e.inArray(t,e.fn.appear.checks);c>=0&&e.fn.appear.checks.splice(c,1)}a.apply(this,arguments)};p.one?r.one("appear",p.data,c):r.bind("appear",p.data,c),n.scroll(t),e.fn.appear.checks.push(t),t()})},e.extend(e.fn.appear,{checks:[],timeout:null,checkAll:function(){var a=e.fn.appear.checks.length;if(a>0)for(;a--;)e.fn.appear.checks[a]()},run:function(){e.fn.appear.timeout&&clearTimeout(e.fn.appear.timeout),e.fn.appear.timeout=setTimeout(e.fn.appear.checkAll,20)}}),e.each(["append","prepend","after","before","attr","removeAttr","addClass","removeClass","toggleClass","remove","css","show","hide"],function(a,r){var p=e.fn[r];p&&(e.fn[r]=function(){var a=p.apply(this,arguments);return e.fn.appear.run(),a})})}(jQuery); |