slight z-index refactor and attempt at organizing it

src/App.scss

@@ -4,6 +4,13 @@
 :root {
   --navbar-height: 3.5rem;
   --post-line-height: 1.4;
+  // Z-Index stuff
+  --ZI_media_modal: 90000;
+  --ZI_navbar_popovers: 85000;
+  --ZI_navbar: 80000;
+  --ZI_modals_popovers: 75000;
+  --ZI_modals: 70000;
+  --ZI_popovers: 60000;
 }
 
 html {
@@ -117,7 +124,7 @@ i[class*=icon-],
 }
 
 nav {
-  z-index: 1000;
+  z-index: var(--ZI_navbar);
   color: var(--topBarText);
   background-color: $fallback--fg;
   background-color: var(--topBar, $fallback--fg);

src/boot/after_store.js

@@ -396,6 +396,9 @@ const afterStoreSetup = async ({ store, i18n }) => {
   app.component('FAIcon', FontAwesomeIcon)
   app.component('FALayers', FontAwesomeLayers)
 
+  // remove after vue 3.3
+  app.config.unwrapInjectedRef = true
+
   app.mount('#app')
 
   return app

src/components/desktop_nav/desktop_nav.scss

@@ -2,6 +2,7 @@
 
 .DesktopNav {
   width: 100%;
+  z-index: var(--ZI_navbar);
 
   a {
     color: var(--topBarLink, $fallback--link);

src/components/emoji_picker/emoji_picker.scss

@@ -7,7 +7,8 @@
   right: 0;
   left: 0;
   margin: 0 !important;
-  z-index: 100;
+  // TODO: actually use popover in emoji picker
+  z-index: var(--ZI_popovers);
   background-color: $fallback--bg;
   background-color: var(--popover, $fallback--bg);
   color: $fallback--link;

src/components/global_notice_list/global_notice_list.vue

@@ -32,7 +32,7 @@
   top: 50px;
   width: 100%;
   pointer-events: none;
-  z-index: 1001;
+  z-index: var(--ZI_popovers);
   display: flex;
   flex-direction: column;
   align-items: center;

src/components/media_modal/media_modal.vue

@@ -121,7 +121,7 @@ $modal-view-button-icon-width: 3em;
 $modal-view-button-icon-margin: 0.5em;
 
 .modal-view.media-modal-view {
-  z-index: 900000;
+  z-index: var(--ZI_media_modal);
   flex-direction: column;
 
   .modal-view-button-arrow,

src/components/mobile_nav/mobile_nav.vue

@@ -86,6 +86,8 @@
 @import '../../_variables.scss';
 
 .MobileNav {
+  z-index: var(--ZI_navbar);
+
   .mobile-nav {
     display: grid;
     line-height: var(--navbar-height);
@@ -147,7 +149,7 @@
     transition-property: transform;
     transition-duration: 0.25s;
     transform: translateX(0);
-    z-index: 1001;
+    z-index: var(--ZI_navbar);
     -webkit-overflow-scrolling: touch;
 
     &.-closed {
@@ -160,7 +162,7 @@
     display: flex;
     align-items: center;
     justify-content: space-between;
-    z-index: 1;
+    z-index: calc(var(--ZI_navbar) + 100);
     width: 100%;
     height: 50px;
     line-height: 50px;

src/components/modal/modal.vue

@@ -22,6 +22,9 @@ export default {
       default: false
     }
   },
+  provide: {
+    popoversZLayer: 'modals'
+  },
   computed: {
     classes () {
       return {
@@ -35,7 +38,7 @@ export default {
 
 <style lang="scss">
 .modal-view {
-  z-index: 2000;
+  z-index: var(--ZI_modals);
   position: fixed;
   top: 0;
   left: 0;

src/components/notifications/notifications.js

@@ -1,3 +1,4 @@
+import { computed } from 'vue'
 import { mapGetters } from 'vuex'
 import Notification from '../notification/notification.vue'
 import NotificationFilters from './notification_filters.vue'
@@ -38,6 +39,11 @@ const Notifications = {
       seenToDisplayCount: DEFAULT_SEEN_TO_DISPLAY_COUNT
     }
   },
+  provide () {
+    return {
+      popoversZLayer: computed(() => this.popoversZLayer)
+    }
+  },
   computed: {
     mainClass () {
       return this.minimalMode ? '' : 'panel panel-default'
@@ -75,6 +81,10 @@ const Notifications = {
       }
       return map[layoutType] || '#notifs-sidebar'
     },
+    popoversZLayer () {
+      const { layoutType } = this.$store.state.interface
+      return layoutType === 'mobile' ? 'navbar' : null
+    },
     notificationsToDisplay () {
       return this.filteredNotifications.slice(0, this.unseenCount + this.seenToDisplayCount)
     },

src/components/popover/popover.js

@@ -42,6 +42,7 @@ const Popover = {
     // What selector (witin popover!) to use for determining center of popover
     overlayCentersSelector: String
   },
+  inject: ['popoversZLayer'], // override popover z layer
   data () {
     return {
       hidden: true,
@@ -168,6 +169,9 @@ const Popover = {
         top: `${Math.round(translateY)}px`
       }
 
+      if (this.popoversZLayer) {
+        this.styles['--ZI_popover_override'] = `var(--ZI_${this.popoversZLayer}_popovers)`
+      }
       if (parentScreenBox) {
         this.styles.maxWidth = `${Math.round(parentScreenBox.width)}px`
       }

src/components/popover/popover.vue

@@ -43,7 +43,7 @@
 }
 
 .popover {
-  z-index: 90000;
+  z-index: var(--ZI_popover_override, var(--ZI_popovers));
   position: fixed;
   min-width: 0;
   max-width: calc(100vw - 20px);
@@ -87,7 +87,7 @@
   text-align: left;
   list-style: none;
   max-width: 100vw;
-  z-index: 200;
+  z-index: var(--ZI_popover_override, var(--ZI_popovers));
   white-space: nowrap;
 
   .dropdown-divider {

src/components/shout_panel/shout_panel.vue

@@ -80,7 +80,7 @@
 .floating-shout {
   position: fixed;
   bottom: 0.5em;
-  z-index: 1000;
+  z-index: var(--ZI_popovers);
   max-width: 25em;
 
   &.-left {

src/components/side_drawer/side_drawer.vue

@@ -211,7 +211,7 @@
 
 .side-drawer-container {
   position: fixed;
-  z-index: 1000;
+  z-index: var(--ZI_navbar);
   top: 0;
   left: 0;
   width: 100%;