Gallery improvements, better layout and autoplay of next media file.

frontend/src/components/MediaPreview.vue

@@ -2,8 +2,10 @@
   <img v-if=preview() :src="`${doc.previewurl}?${quality}&t=${doc.mtime}`" alt="">
   <img v-else-if=doc.img :src=doc.url alt="">
   <span v-else-if=doc.dir class="folder icon"></span>
-  <video ref=vid v-else-if=video() :src=doc.url :poster="`${doc.previewurl}?${quality}&t=${doc.mtime}`" controls preload=none @click.prevent>🎞️</video>
-  <audio ref=aud v-else-if=audio() :src=doc.url controls preload=metadata @click.stop>🔈</audio>
+  <video ref=vid v-else-if=video() :src=doc.url :poster=poster preload=none @play=onplay @pause=onpaused @ended=next @seeking=media!.play()></video>
+  <div v-else-if=audio() class="audio icon">
+    <audio ref=aud :src=doc.url class=icon preload=none @play=onplay @pause=onpaused @ended=next @seeking=media!.play()></audio>
+  </div>
   <span v-else-if=archive() class="archive icon"></span>
   <span v-else class="file icon" :class="`ext-${doc.ext}`"></span>
 </template>
@@ -15,20 +17,83 @@ import type { Doc } from '@/repositories/Document'
 const aud = ref<HTMLAudioElement | null>(null)
 const vid = ref<HTMLVideoElement | null>(null)
 const media = computed(() => aud.value || vid.value)
+const poster = computed(() => `${props.doc.previewurl}?${props.quality}&t=${props.doc.mtime}`)
 const props = defineProps<{
   doc: Doc
   quality: string
 }>()
 
+const onplay = () => {
+  if (!media.value) return
+  media.value.controls = true
+  media.value.setAttribute('data-playing', '')
+}
+const onpaused = () => {
+  if (!media.value) return
+  media.value.controls = false
+  media.value.removeAttribute('data-playing')
+}
+let fscurrent: HTMLVideoElement | null = null
+const next = () => {
+  if (!media.value) return
+  media.value.load()  // Restore poster
+  const medias = Array.from(document.querySelectorAll('video, audio')) as (HTMLAudioElement | HTMLVideoElement)[]
+  if (medias.length === 0) return
+  let el: HTMLAudioElement | HTMLVideoElement | null = null
+  for (const i in medias) {
+    if (medias[i] === (fscurrent || media.value)) {
+      el = medias[+i + 1] || medias[0]
+      break
+    }
+  }
+  if (!el) return
+  if (el.tagName === "VIDEO" && document.fullscreenElement === media.value) {
+    // Fullscreen needs to use the current video element for the next video
+    // because we are not allowed to fullscreen the next one.
+    // FIXME: Write our own player to avoid this problem...
+    const elem = media.value as HTMLVideoElement
+    const playing = el as HTMLVideoElement
+    if (elem === playing) {
+      playing.play()  // Only one video, just replay
+      return
+    }
+    if (!fscurrent) {
+      elem.addEventListener('fullscreenchange', ev => {
+        if (!fscurrent) return
+        // Restore the original video element and continue with the one that was playing
+        fscurrent.currentTime = elem.currentTime
+        fscurrent.click()
+        if (!elem.paused) fscurrent.play()
+        fscurrent = null
+        elem.src = props.doc.url
+        elem.poster = poster.value
+        onpaused()
+      }, {once: true})
+    }
+    fscurrent = playing
+    elem.src = playing.src
+    elem.poster = ''
+    elem.play()
+  } else {
+    document.exitFullscreen()
+    el.click()
+  }
+}
 defineExpose({
   play() {
-    if (media.value) {
-      if (media.value.paused) media.value.play()
-      else media.value.pause()
-      return true
+    if (!media.value) return false
+    if (media.value.paused) {
+      media.value.play()
+      for (const el of Array.from(document.querySelectorAll('video, audio')) as (HTMLAudioElement | HTMLVideoElement)[]) {
+        if (el === media.value) continue
+        el.pause()
+      }
+    } else {
+      media.value.pause()
     }
-    return false
+    return true
   },
+  media,
 })
 
 
@@ -44,20 +109,12 @@ const preview = () => (
 
 <style scoped>
 img, embed, .icon, audio, video {
-  font-size: 10em;
+  font-size: 8em;
   overflow: hidden;
   min-width: 50%;
   max-width: 100%;
-  min-height: 50%;
   max-height: 100%;
-  object-fit: cover;
-  border-radius: .05em;
-}
-img {
-  justify-self: start;
-}
-audio, video {
-  padding-bottom: 2rem;
+  border-radius: calc(.5em / 8);
 }
 .folder::before {
   content: '📁';
@@ -80,6 +137,22 @@ audio, video {
 .ext-torrent::before {
   content: '🏴‍☠️';
 }
+.audio audio {
+  opacity: 0;
+  transition: opacity var(--transition-time) ease-in-out;
+}
+.audio:hover audio {
+  opacity: 1;
+}
+.audio.icon::before {
+  width: 100%;
+  content: '🔈';
+}
+.audio.icon:has(audio[data-playing])::before {
+  position: absolute;
+  content: '🔊';
+  bottom: 0;
+}
 .icon {
   filter: brightness(0.9);
 }
@@ -87,7 +160,7 @@ figure.cursor .icon {
   filter: brightness(1);
 }
 img::before, video::before {
-  /* broken image */
+  /* broken media */
   background: #888;
   position: absolute;
   width: 100%;