2 files changed, 33 insertions, 7 deletions

diff --git a/src/components/still-image/still-image.js b/src/components/still-image/still-image.js
index d7abbcb5..56fd2fd9 100644
--- a/src/components/still-image/still-image.js
+++ b/src/components/still-image/still-image.js
@@ -7,16 +7,24 @@ const StillImage = {
     'imageLoadHandler',
     'alt',
     'height',
-    'width'
+    'width',
+    'dataSrc',
+    'loading'
   ],
   data () {
     return {
+      // for lazy loading, see loadLazy()
+      realSrc: this.src,
       stopGifs: this.$store.getters.mergedConfig.stopGifs
     }
   },
   computed: {
     animated () {
-      return this.stopGifs && (this.mimetype === 'image/gif' || this.src.endsWith('.gif'))
+      if (!this.realSrc) {
+        return false
+      }
+
+      return this.stopGifs && (this.mimetype === 'image/gif' || this.realSrc.endsWith('.gif'))
     },
     style () {
       const appendPx = (str) => /\d$/.test(str) ? str + 'px' : str
@@ -27,7 +35,15 @@ const StillImage = {
     }
   },
   methods: {
+    loadLazy () {
+      if (this.dataSrc) {
+        this.realSrc = this.dataSrc
+      }
+    },
     onLoad () {
+      if (!this.realSrc) {
+        return
+      }
       const image = this.$refs.src
       if (!image) return
       this.imageLoadHandler && this.imageLoadHandler(image)
@@ -42,6 +58,14 @@ const StillImage = {
     onError () {
       this.imageLoadError && this.imageLoadError()
     }
+  },
+  watch: {
+    src () {
+      this.realSrc = this.src
+    },
+    dataSrc () {
+      this.$el.removeAttribute('data-loaded')
+    }
   }
 }
 
diff --git a/src/components/still-image/still-image.vue b/src/components/still-image/still-image.vue
index ab3080c8..fc46fbe6 100644
--- a/src/components/still-image/still-image.vue
+++ b/src/components/still-image/still-image.vue
@@ -11,11 +11,13 @@
     <!-- NOTE: key is required to force to re-render img tag when src is changed -->
     <img
       ref="src"
-      :key="src"
+      :key="realSrc"
       :alt="alt"
       :title="alt"
-      :src="src"
+      :data-src="dataSrc"
+      :src="realSrc"
       :referrerpolicy="referrerpolicy"
+      :loading="loading"
       @load="onLoad"
       @error="onError"
     >
@@ -26,7 +28,7 @@
 <script src="./still-image.js"></script>
 
 <style lang="scss">
-@import '../../_variables.scss';
+@import "../../variables";
 
 .still-image {
   position: relative;
@@ -56,13 +58,13 @@
   &.animated {
     &::before {
       zoom: var(--_still_image-label-scale, 1);
-      content: 'gif';
+      content: "gif";
       position: absolute;
       line-height: 1;
       font-size: 0.7em;
       top: 0.5em;
       left: 0.5em;
-      background: rgba(127, 127, 127, 0.5);
+      background: rgb(127 127 127 / 50%);
       color: #fff;
       display: block;
       padding: 2px 4px;