fix uploaded videos don't load on safari (#1593)

* fix uploaded videos don't load on safari

* fix safari loading video as image, min-content restored

* refinements for ssr and skip load check for images

---------

Co-authored-by: Keyan <34140557+huumn@users.noreply.github.com>
Co-authored-by: k00b <k00b@stacker.news>

components/media-or-link.js

@@ -1,5 +1,5 @@
 import styles from './text.module.css'
-import { useState, useEffect, useMemo, useCallback, memo } from 'react'
+import { useState, useEffect, useMemo, useCallback, memo, useRef } from 'react'
 import { decodeProxyUrl, IMGPROXY_URL_REGEXP, MEDIA_DOMAIN_REGEXP } from '@/lib/url'
 import { useMe } from './me'
 import { UNKNOWN_LINK_REL } from '@/lib/constants'
@@ -23,13 +23,31 @@ const Media = memo(function Media ({
   src, bestResSrc, srcSet, sizes, width,
   height, onClick, onError, style, className, video
 }) {
+  const [loaded, setLoaded] = useState(!video)
+  const ref = useRef(null)
+
+  const handleLoadedMedia = () => {
+    setLoaded(true)
+  }
+
+  // events are not fired on elements during hydration
+  // https://github.com/facebook/react/issues/15446
+  useEffect(() => {
+    if (ref.current) {
+      ref.current.src = src
+    }
+  }, [ref.current, src])
+
   return (
     <div
-      className={classNames(className, styles.mediaContainer)}
+      // will set min-content ONLY after the media is loaded
+      // due to safari video bug
+      className={classNames(className, styles.mediaContainer, { [styles.loaded]: loaded })}
       style={style}
     >
       {video
         ? <video
+            ref={ref}
             src={src}
             preload={bestResSrc !== src ? 'metadata' : undefined}
             controls
@@ -37,8 +55,10 @@ const Media = memo(function Media ({
             width={width}
             height={height}
             onError={onError}
+            onLoadedMetadata={handleLoadedMedia}
           />
         : <img
+            ref={ref}
             src={src}
             srcSet={srcSet}
             sizes={sizes}
@@ -46,6 +66,7 @@ const Media = memo(function Media ({
             height={height}
             onClick={onClick}
             onError={onError}
+            onLoad={handleLoadedMedia}
           />}
     </div>
   )
@@ -101,21 +122,28 @@ export const useMediaHelper = ({ src, srcSet: srcSetIntital, topLevel, tab }) =>
   useEffect(() => {
     // don't load the video at all if user doesn't want these
     if (!showMedia || isVideo || isImage) return
-    // make sure it's not a false negative by trying to load URL as <img>
-    const img = new window.Image()
-    img.onload = () => setIsImage(true)
-    img.src = src
+
+    // check if it's a video by trying to load it
     const video = document.createElement('video')
-    video.onloadeddata = () => setIsVideo(true)
+    video.onloadedmetadata = () => {
+      setIsVideo(true)
+      setIsImage(false)
+    }
+    video.onerror = () => {
+      // hack
+      // if it's not a video it will throw an error, so we can assume it's an image
+      const img = new window.Image()
+      img.onload = () => setIsImage(true)
+      img.src = src
+    }
     video.src = src
 
     return () => {
-      img.onload = null
-      img.src = ''
-      video.onloadeddata = null
+      video.onloadedmetadata = null
+      video.onerror = null
       video.src = ''
     }
-  }, [src, setIsImage, setIsVideo, showMedia, isVideo])
+  }, [src, setIsImage, setIsVideo, showMedia, isImage])
 
   const srcSet = useMemo(() => {
     if (Object.keys(srcSetObj).length === 0) return undefined

components/text.module.css

@@ -184,10 +184,14 @@
 .p:has(> .mediaContainer) .mediaContainer
 {
     display: flex;
-    width: min-content;
     max-width: 100%;
 }
 
+.p:has(> .mediaContainer) .mediaContainer.loaded
+{
+    width: min-content;
+}
+
 .p:has(> .mediaContainer) .mediaContainer img,
 .p:has(> .mediaContainer) .mediaContainer video
 {