add body-scroll-lock directive

This commit is contained in:
taehoon 2019-07-19 12:27:03 -04:00
parent 60c3501d35
commit 8b321f6f1f
2 changed files with 71 additions and 0 deletions

View file

@ -0,0 +1,69 @@
import * as bodyScrollLock from 'body-scroll-lock'
let previousNavPaddingRight
let previousAppBgWrapperRight
const disableBodyScroll = (el) => {
const scrollBarGap = window.innerWidth - document.documentElement.clientWidth
bodyScrollLock.disableBodyScroll(el, {
reserveScrollBarGap: true
})
setTimeout(() => {
// If previousNavPaddingRight is already set, don't set it again.
if (previousNavPaddingRight === undefined) {
const navEl = document.getElementById('nav')
previousNavPaddingRight = window.getComputedStyle(navEl).getPropertyValue('padding-right')
navEl.style.paddingRight = previousNavPaddingRight ? `calc(${previousNavPaddingRight} + ${scrollBarGap}px)` : `${scrollBarGap}px`
}
// If previousAppBgWrapeprRight is already set, don't set it again.
if (previousAppBgWrapperRight === undefined) {
const appBgWrapperEl = document.getElementById('app_bg_wrapper')
previousAppBgWrapperRight = window.getComputedStyle(appBgWrapperEl).getPropertyValue('right')
appBgWrapperEl.style.right = previousAppBgWrapperRight ? `calc(${previousAppBgWrapperRight} + ${scrollBarGap}px)` : `${scrollBarGap}px`
}
document.body.classList.add('scroll-locked')
})
}
const enableBodyScroll = (el) => {
setTimeout(() => {
if (previousNavPaddingRight !== undefined) {
document.getElementById('nav').style.paddingRight = previousNavPaddingRight
// Restore previousNavPaddingRight to undefined so disableBodyScroll knows it can be set again.
previousNavPaddingRight = undefined
}
if (previousAppBgWrapperRight !== undefined) {
document.getElementById('app_bg_wrapper').style.right = previousAppBgWrapperRight
// Restore previousAppBgWrapperRight to undefined so disableBodyScroll knows it can be set again.
previousAppBgWrapperRight = undefined
}
document.body.classList.remove('scroll-locked')
})
bodyScrollLock.enableBodyScroll(el)
}
const directive = {
inserted: (el, binding) => {
if (binding.value) {
disableBodyScroll(el)
}
},
componentUpdated: (el, binding) => {
if (binding.oldValue === binding.value) {
return
}
if (binding.value) {
disableBodyScroll(el)
} else {
enableBodyScroll(el)
}
},
unbind: (el) => {
enableBodyScroll(el)
}
}
export default (Vue) => {
Vue.directive('body-scroll-lock', directive)
}

View file

@ -26,6 +26,7 @@ import messages from './i18n/messages.js'
import VueChatScroll from 'vue-chat-scroll'
import VueClickOutside from 'v-click-outside'
import PortalVue from 'portal-vue'
import VBodyScrollLock from './directives/body_scroll_lock'
import VTooltip from 'v-tooltip'
import afterStoreSetup from './boot/after_store.js'
@ -38,6 +39,7 @@ Vue.use(VueI18n)
Vue.use(VueChatScroll)
Vue.use(VueClickOutside)
Vue.use(PortalVue)
Vue.use(VBodyScrollLock)
Vue.use(VTooltip)
const i18n = new VueI18n({