Animate avatar GIFs on-hover on public profiles (#10549)

* Third time is the charm?

* Use full asset URL for data-static and data-original

̀image_tag` expands to the full asset URL, we have to do the same in `data` attributes so that it can work when assets and user data are stored on a different host

1 files changed, 15 insertions, 0 deletions

diff --git a/app/javascript/packs/public.js b/app/javascript/packs/public.js
index 6a8cf9c2f..93379cdb3 100644
--- a/app/javascript/packs/public.js
+++ b/app/javascript/packs/public.js
@@ -173,6 +173,21 @@ function main() {
     avatar.src = url;
   });
 
+  const getProfileAvatarAnimationHandler = (swapTo) => {
+    //animate avatar gifs on the profile page when moused over
+    return ({ target }) => {
+      const swapSrc = target.getAttribute(swapTo);
+      //only change the img source if autoplay is off and the image src is actually different
+      if(target.getAttribute('data-autoplay') === 'false' && target.src !== swapSrc) {
+        target.src = swapSrc;
+      }
+    };
+  };
+
+  delegate(document, 'img#profile_page_avatar', 'mouseover', getProfileAvatarAnimationHandler('data-original'));
+
+  delegate(document, 'img#profile_page_avatar', 'mouseout', getProfileAvatarAnimationHandler('data-static'));
+
   delegate(document, '#account_header', 'change', ({ target }) => {
     const header = document.querySelector('.card .card__img img');
     const [file] = target.files || [];