添加指令
在滾動的最外層元素使用該指令
1.適用於彈窗內部不需要滾動的場景
Vue.directive('lockScrollBack', {
update: function (el, binding, vnode) {
if (binding.value.includes(true)) {
el.addEventListener('touchmove', bodyScroll, false)
} else {
el.removeEventListener('touchmove', bodyScroll, false)
}
},
});
2.適用於彈窗也需要滾動的場景
通過overflow = hidden的方式解決滑動穿透,
*添加該指令的元素需要添加樣式 overflow-y: auto;
Vue.directive('lockScroll', {
update: function (el, binding, vnode) {
if (Array.isArray(binding.value)) {
if (binding.value.includes(true)) {
el.style.overflow = 'hidden'
} else {
el.style.overflow = 'auto'
}
} else if (Object.prototype.toString(binding.value)=='[object Object]') {
el.style.overflow = 'auto';
for (let key in binding.value) {
if (binding.value[key]) {
el.style.overflow = 'hidden';
break;
}
}
}
},
});