vue 3 的完整案例
这是一个基于 MadisonTrash 答案的完整解决方案,以及针对 safari 兼容性和 vue 3 api 更改的 benrwb 和 fredrivett 调整。
编辑:
下面提出的解决方案仍然有用,使用方法仍然有效,但我将其更改为使用document.elementsFromPoint 而不是event.contains,因为它不会将<path> 标签等某些元素识别为子元素在svgs里面。所以正确的指令是这个:
export default {
beforeMount: (el, binding) => {
el.eventSetDrag = () => {
el.setAttribute("data-dragging", "yes");
};
el.eventClearDrag = () => {
el.removeAttribute("data-dragging");
};
el.eventOnClick = event => {
const dragging = el.getAttribute("data-dragging");
// Check that the click was outside the el and its children, and wasn't a drag
console.log(document.elementsFromPoint(event.clientX, event.clientY))
if (!document.elementsFromPoint(event.clientX, event.clientY).includes(el) && !dragging) {
// call method provided in attribute value
binding.value(event);
}
};
document.addEventListener("touchstart", el.eventClearDrag);
document.addEventListener("touchmove", el.eventSetDrag);
document.addEventListener("click", el.eventOnClick);
document.addEventListener("touchend", el.eventOnClick);
},
unmounted: el => {
document.removeEventListener("touchstart", el.eventClearDrag);
document.removeEventListener("touchmove", el.eventSetDrag);
document.removeEventListener("click", el.eventOnClick);
document.removeEventListener("touchend", el.eventOnClick);
el.removeAttribute("data-dragging");
},
};
旧答案:
指令
const clickOutside = {
beforeMount: (el, binding) => {
el.eventSetDrag = () => {
el.setAttribute("data-dragging", "yes");
};
el.eventClearDrag = () => {
el.removeAttribute("data-dragging");
};
el.eventOnClick = event => {
const dragging = el.getAttribute("data-dragging");
// Check that the click was outside the el and its children, and wasn't a drag
if (!(el == event.target || el.contains(event.target)) && !dragging) {
// call method provided in attribute value
binding.value(event);
}
};
document.addEventListener("touchstart", el.eventClearDrag);
document.addEventListener("touchmove", el.eventSetDrag);
document.addEventListener("click", el.eventOnClick);
document.addEventListener("touchend", el.eventOnClick);
},
unmounted: el => {
document.removeEventListener("touchstart", el.eventClearDrag);
document.removeEventListener("touchmove", el.eventSetDrag);
document.removeEventListener("click", el.eventOnClick);
document.removeEventListener("touchend", el.eventOnClick);
el.removeAttribute("data-dragging");
},
}
createApp(App)
.directive("click-outside", clickOutside)
.mount("#app");
此解决方案监视应用指令的组件的元素和元素的子元素,以检查 event.target 元素是否也是子元素。如果是这种情况,它不会触发,因为它在组件内部。
如何使用
您只需使用 as any 指令,并带有方法引用来处理触发器:
<template>
<div v-click-outside="myMethod">
<div class="handle" @click="doAnotherThing($event)">
<div>Any content</div>
</div>
</div>
</template>