blazy-8.x-2.x-dev/js/plugin/blazy.observer.min.js

!function(f,u){"use strict";var i=f.viewport;f.observer={elms:[],scope:{},withIo:!1,init:function(n,t,e,r){var i,o=this,s=n.options||{},a=n._queue||[],u="windowData"in n?n.windowData():{},l=f.viewport;n._raf||(n._raf=[]);var c={rootMargin:s.rootMargin||"0px",threshold:s.threshold||0};function v(e){var r;return a.length||(r=requestAnimationFrame(h),n._raf.push(r)),a.push(e),!1}function h(){var e,r,i;e=a,r=t,i=n,f.each(e,r.bind(i)),e.length=0}o.elms=e=f.toArray(n.elms||e),o.scope=n,o.withIo=n.withIo||r,r&&(n.ioObserver=f.isIo?new IntersectionObserver(v,c):t.call(n,e));return n.roObserver=function(){return i=this,u=f.isUnd(u.ww)?l.windowData(s,!0):n.windowData(),f.isRo?new ResizeObserver(v):t.call(n,e)}(),n.resizeTrigger=i,u},visibleParent:function(e){var r=i;return r&&r.isHidden(e)?r.visibleParent(e):null},hiddenChild:function(e,r){var i=this.scope.ioObserver;if(i&&!f.is(e,r)){r=f.find(e,r);if(f.isElm(r))return i.unobserve(e),r}return null},observe:function(){function e(i){i&&t&&t.length&&f.each(t,function(e){var r;i!==s||(r=n.visibleParent(e))&&i.observe(r),i.observe(e)})}var n=this,r=n.scope,t=n.elms,i=n.withIo,o=r.options||{},s=r.ioObserver,a=r.roObserver;return f.isIo&&(s||a)?(i&&e(s),e(a)):"Blazy"in u&&(r.bLazy=new Blazy(o)),r},unload:function(e){e=(e=e||this.scope)._raf||[];e.length&&f.each(e,function(e){cancelAnimationFrame(e)})}}}(dBlazy,this);