import cssAnimation from '../../_util/css-animation'; function animate(node, show, transitionName, done) { var height = void 0; return cssAnimation(node, transitionName, { start: function start() { if (!show) { node.style.height = node.offsetHeight + 'px'; } else { height = node.offsetHeight; node.style.height = 0; } }, active: function active() { node.style.height = (show ? height : 0) + 'px'; }, end: function end() { node.style.height = ''; done(); } }); } function animation(prefixCls) { return { enter: function enter(node, done) { return animate(node, true, prefixCls + '-anim', done); }, leave: function leave(node, done) { return animate(node, false, prefixCls + '-anim', done); } }; } export default animation;