clickOutSide.js
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//outside.js
const ctx = "@@clickoutsideContext";
export default {
bind(el, binding, vnode) {
const ele = el;
const documentHandler = e => {
if (!vnode.context || ele.contains(e.target)) {
return false;
}
// 调用指令回调
if (binding.expression) {
vnode.context[el[ctx].methodName](e);
} else {
el[ctx].bindingFn(e);
}
};
// 将方法添加到ele
ele[ctx] = {
documentHandler,
methodName: binding.expression,
bindingFn: binding.value
};
setTimeout(() => {
document.addEventListener("touchstart", documentHandler); // 为document绑定事件
});
},
update(el, binding) {
const ele = el;
ele[ctx].methodName = binding.expression;
ele[ctx].bindingFn = binding.value;
},
unbind(el) {
document.removeEventListener("touchstart", el[ctx].documentHandler); // 解绑
delete el[ctx];
}
};