2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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/**
* Bind after-leave event for vue instance. Make sure after-leave is called in any browsers.
*
* @param {Vue} instance Vue instance.
* @param {Function} callback callback of after-leave event
* @param {Number} speed the speed of transition, default value is 300ms
* @param {Boolean} once weather bind after-leave once. default value is false.
*/
export default function(instance, callback, speed = 300, once = false) {
if (!instance || !callback) throw new Error('instance & callback is required');
let called = false;
const afterLeaveCallback = function() {
if (called) return;
called = true;
if (callback) {
callback.apply(null, arguments);
}
};
if (once) {
instance.$once('after-leave', afterLeaveCallback);
} else {
instance.$on('after-leave', afterLeaveCallback);
}
setTimeout(() => {
afterLeaveCallback();
}, speed + 100);
};
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