Use lozad for lazy image loading

Ref: grouped-emoji-picker

3 files changed, 20 insertions, 2 deletions

diff --git a/src/components/emoji_picker/emoji_picker.js b/src/components/emoji_picker/emoji_picker.js
index 8e11f83f..82e5ad0b 100644
--- a/src/components/emoji_picker/emoji_picker.js
+++ b/src/components/emoji_picker/emoji_picker.js
@@ -1,5 +1,6 @@
 import { defineAsyncComponent } from 'vue'
 import Checkbox from '../checkbox/checkbox.vue'
+import LazyImageContainer from '../../directives/lazy_image_container'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
   faBoxOpen,
@@ -64,6 +65,9 @@ const EmojiPicker = {
     StickerPicker: defineAsyncComponent(() => import('../sticker_picker/sticker_picker.vue')),
     Checkbox
   },
+  directives: {
+    LazyImageContainer
+  },
   methods: {
     onStickerUploaded (e) {
       this.$emit('sticker-uploaded', e)
@@ -184,7 +188,7 @@ const EmojiPicker = {
       this.showingStickers = value
     },
     limitedEmojis (list, groupId) {
-      return list.slice(0, this.loadedCount[groupId])
+      return list // list.slice(0, this.loadedCount[groupId])
     },
     filterByKeyword (list, keyword) {
       return filterByKeyword(list, keyword)
diff --git a/src/components/emoji_picker/emoji_picker.vue b/src/components/emoji_picker/emoji_picker.vue
index 7b2b7fc8..0e6c7e41 100644
--- a/src/components/emoji_picker/emoji_picker.vue
+++ b/src/components/emoji_picker/emoji_picker.vue
@@ -62,6 +62,7 @@
         </div>
         <div
           ref="emoji-groups"
+          v-lazy-image-container
           class="emoji-groups"
           :class="groupsScrolledClass"
           @scroll="onScroll"
@@ -87,7 +88,7 @@
               <span v-if="!emoji.imageUrl">{{ emoji.replacement }}</span>
               <img
                 v-else
-                :src="emoji.imageUrl"
+                :data-src="emoji.imageUrl"
               >
             </span>
             <span :ref="'group-end-' + group.id" />
diff --git a/src/directives/lazy_image_container.js b/src/directives/lazy_image_container.js
new file mode 100644
index 00000000..44adc828
--- /dev/null
+++ b/src/directives/lazy_image_container.js
@@ -0,0 +1,13 @@
+
+import lozad from 'lozad'
+
+const LazyImageContainer = {
+  inserted (el) {
+    const images = el.querySelectorAll('img')
+    console.log(images.length)
+    el.$observer = lozad(images)
+    el.$observer.observe()
+  }
+}
+
+export default LazyImageContainer