From 8b321f6f1fd8b906cd9e224bbfc2356c8e4e4235 Mon Sep 17 00:00:00 2001 From: taehoon Date: Fri, 19 Jul 2019 12:27:03 -0400 Subject: [PATCH] add body-scroll-lock directive --- src/directives/body_scroll_lock.js | 69 ++++++++++++++++++++++++++++++ src/main.js | 2 + 2 files changed, 71 insertions(+) create mode 100644 src/directives/body_scroll_lock.js diff --git a/src/directives/body_scroll_lock.js b/src/directives/body_scroll_lock.js new file mode 100644 index 00000000..6ab20c3f --- /dev/null +++ b/src/directives/body_scroll_lock.js @@ -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) +} diff --git a/src/main.js b/src/main.js index b3256e8e..ffaf0ad5 100644 --- a/src/main.js +++ b/src/main.js @@ -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({