Merge branch 'modal-scroll-lock' into 'develop'

Lock body scroll when modal is open globally

See merge request pleroma/pleroma-fe!974

src/App.scss

@@ -705,31 +705,6 @@ nav {
   }
 }
 
-@keyframes modal-background-fadein {
-  from {
-    background-color: rgba(0, 0, 0, 0);
-  }
-  to {
-    background-color: rgba(0, 0, 0, 0.5);
-  }
-}
-
-.modal-view {
-  z-index: 1000;
-  position: fixed;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  overflow: auto;
-  animation-duration: 0.2s;
-  background-color: rgba(0, 0, 0, 0.5);
-  animation-name: modal-background-fadein;
-}
-
 .button-icon {
   font-size: 1.2em;
 }

src/components/media_modal/media_modal.js

 import StillImage from '../still-image/still-image.vue'
 import VideoAttachment from '../video_attachment/video_attachment.vue'
+import Modal from '../modal/modal.vue'
 import fileTypeService from '../../services/file_type/file_type.service.js'
 
 const MediaModal = {
   components: {
     StillImage,
-    VideoAttachment
+    VideoAttachment,
+    Modal
   },
   computed: {
     showing () {

src/components/media_modal/media_modal.vue

 <template>
-  <div
+  <Modal
     v-if="showing"
-    v-body-scroll-lock="showing"
-    class="modal-view media-modal-view"
-    @click.prevent="hide"
+    class="media-modal-view"
+    @backdropClicked="hide"
   >
     <img
       v-if="type === 'image'"
@@ -33,21 +32,15 @@
     >
       <i class="icon-right-open arrow-icon" />
     </button>
-  </div>
+  </Modal>
 </template>
 
 <script src="./media_modal.js"></script>
 
 <style lang="scss">
-@import '../../_variables.scss';
-
-.media-modal-view {
+.modal-view.media-modal-view {
   z-index: 1001;
 
-  body:not(.scroll-locked) & {
-    display: none;
-  }
-
   &:hover {
     .modal-view-button-arrow {
       opacity: 0.75;
@@ -114,5 +107,4 @@
     }
   }
 }
-
 </style>

src/components/modal/modal.vue

+<template>
+  <div
+    v-show="isOpen"
+    v-body-scroll-lock="isOpen"
+    class="modal-view"
+    @click.self="$emit('backdropClicked')"
+  >
+    <slot />
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    isOpen: {
+      type: Boolean,
+      default: true
+    }
+  }
+}
+</script>
+
+<style lang="scss">
+.modal-view {
+  z-index: 1000;
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  overflow: auto;
+  animation-duration: 0.2s;
+  background-color: rgba(0, 0, 0, 0.5);
+  animation-name: modal-background-fadein;
+
+  body:not(.scroll-locked) & {
+    opacity: 0;
+  }
+}
+
+@keyframes modal-background-fadein {
+  from {
+    background-color: rgba(0, 0, 0, 0);
+  }
+  to {
+    background-color: rgba(0, 0, 0, 0.5);
+  }
+}
+</style>

src/components/post_status_modal/post_status_modal.js

 import PostStatusForm from '../post_status_form/post_status_form.vue'
+import Modal from '../modal/modal.vue'
 import get from 'lodash/get'
 
 const PostStatusModal = {
   components: {
-    PostStatusForm
+    PostStatusForm,
+    Modal
   },
   data () {
     return {

src/components/post_status_modal/post_status_modal.vue

 <template>
-  <div
+  <Modal
     v-if="isLoggedIn && !resettingForm"
-    v-show="modalActivated"
-    class="post-form-modal-view modal-view"
-    @click="closeModal"
+    :is-open="modalActivated"
+    class="post-form-modal-view"
+    @backdropClicked="closeModal"
   >
-    <div
-      class="post-form-modal-panel panel"
-      @click.stop=""
-    >
+    <div class="post-form-modal-panel panel">
       <div class="panel-heading">
         {{ $t('post_status.new_status') }}
       </div>
@@ -18,15 +15,13 @@
         @posted="closeModal"
       />
     </div>
-  </div>
+  </Modal>
 </template>
 
 <script src="./post_status_modal.js"></script>
 
 <style lang="scss">
-@import '../../_variables.scss';
-
-.post-form-modal-view {
+.modal-view.post-form-modal-view {
   align-items: flex-start;
 }
 

src/components/user_reporting_modal/user_reporting_modal.js

@@ -2,12 +2,14 @@
 import Status from '../status/status.vue'
 import List from '../list/list.vue'
 import Checkbox from '../checkbox/checkbox.vue'
+import Modal from '../modal/modal.vue'
 
 const UserReportingModal = {
   components: {
     Status,
     List,
-    Checkbox
+    Checkbox,
+    Modal
   },
   data () {
     return {

src/components/user_reporting_modal/user_reporting_modal.vue

 <template>
-  <div
+  <Modal
     v-if="isOpen"
-    class="modal-view"
-    @click="closeModal"
+    @backdropClicked="closeModal"
   >
-    <div
-      class="user-reporting-panel panel"
-      @click.stop=""
-    >
+    <div class="user-reporting-panel panel">
       <div class="panel-heading">
         <div class="title">
           {{ $t('user_reporting.title', [user.screen_name]) }}
@@ -69,7 +65,7 @@
         </div>
       </div>
     </div>
-  </div>
+  </Modal>
 </template>
 
 <script src="./user_reporting_modal.js"></script>

src/directives/body_scroll_lock.js

@@ -2,42 +2,49 @@ import * as bodyScrollLock from 'body-scroll-lock'
 
 let previousNavPaddingRight
 let previousAppBgWrapperRight
+const lockerEls = new Set([])
 
 const disableBodyScroll = (el) => {
   const scrollBarGap = window.innerWidth - document.documentElement.clientWidth
   bodyScrollLock.disableBodyScroll(el, {
     reserveScrollBarGap: true
   })
+  lockerEls.add(el)
   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 (lockerEls.size <= 1) {
+      // 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')
     }
-    // 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) => {
+  lockerEls.delete(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
+    if (lockerEls.size === 0) {
+      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')
     }
-    document.body.classList.remove('scroll-locked')
   })
   bodyScrollLock.enableBodyScroll(el)
 }