From 102a970174ef5c992a8943b375d1653c22d15adb Mon Sep 17 00:00:00 2001
From: Leo Vasanko <leo@git>
Date: Mon, 20 Nov 2023 01:51:34 -0800
Subject: [PATCH] Gallery improvements, better layout and autoplay of next
 media file.

---
 frontend/src/components/Gallery.vue       |   1 -
 frontend/src/components/GalleryFigure.vue |  87 +++++++++--------
 frontend/src/components/MediaPreview.vue  | 109 ++++++++++++++++++----
 frontend/src/components/SelectBox.vue     |   2 +-
 frontend/src/views/ExplorerView.vue       |   4 +-
 5 files changed, 137 insertions(+), 66 deletions(-)

diff --git a/frontend/src/components/Gallery.vue b/frontend/src/components/Gallery.vue
index 02b57b0..dd2471f 100644
--- a/frontend/src/components/Gallery.vue
+++ b/frontend/src/components/Gallery.vue
@@ -118,7 +118,6 @@ defineExpose({
       // Wrapping either end, just land outside the list
       if (Math.abs(d) >= N || Math.sign(d) !== Math.sign(moveto - index)) moveto = N
     }
-    console.log("Gallery cursorMove", d, index, moveto, moveto - index)
     store.cursor = docs[moveto]?.key ?? ''
     const tr = store.cursor ? document.getElementById(`file-${store.cursor}`) : ''
     if (select) {
diff --git a/frontend/src/components/GalleryFigure.vue b/frontend/src/components/GalleryFigure.vue
index f92fab6..46fcdb3 100644
--- a/frontend/src/components/GalleryFigure.vue
+++ b/frontend/src/components/GalleryFigure.vue
@@ -3,20 +3,17 @@
     :class="{ file: !doc.dir, folder: doc.dir, cursor: store.cursor === doc.key }"
     @contextmenu.stop
     @focus.stop="store.cursor = doc.key"
-    @click="ev => {
-      if (m!.play()) ev.preventDefault()
-      store.cursor = doc.key
-    }"
+    @click=onclick
   >
     <figure>
       <slot></slot>
-      <MediaPreview ref=m :doc="doc" tabindex=-1 quality="sz=512" />
-      <caption>
-        <label>
-          <SelectBox :doc=doc />
-          <span :title="doc.name + '\n' + doc.modified + '\n' + doc.sizedisp">{{ doc.name }}</span>
-        </label>
-      </caption>
+      <MediaPreview ref=m :doc="doc" tabindex=-1 quality="sz=512" class="figcontent" />
+      <div class="titlespacer"></div>
+      <figcaption>
+        <SelectBox :doc=doc />
+        <span :title="doc.name + '\n' + doc.modified + '\n' + doc.sizedisp">{{ doc.name }}</span>
+        <div class=namespacer></div>
+      </figcaption>
     </figure>
   </a>
 </template>
@@ -33,10 +30,15 @@ const props = defineProps<{
   index: number
 }>()
 const m = ref<typeof MediaPreview | null>(null)
+
+const onclick = (ev: Event) => {
+  if (m.value!.play()) ev.preventDefault()
+  store.cursor = props.doc.key
+}
 </script>
 
 <style scoped>
-.gallery figure {
+figure {
   max-height: 15em;
   position: relative;
   border-radius: .5em;
@@ -48,51 +50,48 @@ const m = ref<typeof MediaPreview | null>(null)
   justify-content: end;
   overflow: hidden;
 }
-.icon {
-  justify-self: end;
+figure > article {
+  flex: 0 0 auto;
 }
-figure caption {
-  font-weight: 600;
-  color: var(--text-color);
-  text-shadow: 0 0 .2em var(--primary-background), 0 0 .2em var(--primary-background);
+.titlespacer {
+  flex-shrink: 100000;
+  width: 100%;
+  height: 2em;
 }
-.cursor caption {
-  background: var(--accent-color);
-  text-shadow: none;
-}
-caption {
+figcaption {
   position: absolute;
   overflow: hidden;
   bottom: 0;
   display: flex;
-  flex-direction: column;
   align-items: center;
+  justify-content: center;
   width: 100%;
 }
-caption label {
-  width: 100%;
-  display: flex;
-  align-items: center;
-}
-label span {
-  flex: 1 1;
-  margin-right: 2em;
-  text-align: center;
-  overflow: hidden;
-  white-space: nowrap;
-  text-overflow: ellipsis;
-}
-label input[type='checkbox'] {
-  width: 2em;
-  height: 2em;
+figcaption input[type='checkbox'] {
+  width: 1.5em;
+  height: 1.5em;
+  margin: .25em;
   opacity: 0;
   flex-shrink: 0;
 }
-label input[type='checkbox']:checked {
+figcaption input[type='checkbox']:checked, figcaption input[type='checkbox']:hover {
   opacity: 1;
 }
-a {
-  text-decoration: none;
+figcaption span {
+  padding: .5em;
+  color: #fff;
+  font-weight: 600;
+  text-shadow: 0 0 .2em #000, 0 0 .2em #000;
+  text-wrap: nowrap;
+  text-overflow: ellipsis;
+  overflow: hidden;
+}
+.cursor figcaption span {
+  color: var(--accent-color);
+}
+figcaption .namespacer {
+  flex-shrink: 100000;
+  height: 2em;
+  width: 2em;
 }
-
 </style>
diff --git a/frontend/src/components/MediaPreview.vue b/frontend/src/components/MediaPreview.vue
index 28bd1f8..bd1f5a2 100644
--- a/frontend/src/components/MediaPreview.vue
+++ b/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%;
diff --git a/frontend/src/components/SelectBox.vue b/frontend/src/components/SelectBox.vue
index ebf2c03..5085884 100644
--- a/frontend/src/components/SelectBox.vue
+++ b/frontend/src/components/SelectBox.vue
@@ -1,5 +1,5 @@
 <template>
-  <input type=checkbox tabindex=-1 :checked="store.selected.has(doc.key)"
+  <input type=checkbox tabindex=-1 :checked="store.selected.has(doc.key)" @click.stop
     @change="ev => {
       if ((ev.target as HTMLInputElement).checked) {
         store.selected.add(doc.key)
diff --git a/frontend/src/views/ExplorerView.vue b/frontend/src/views/ExplorerView.vue
index 73a9a50..6511945 100644
--- a/frontend/src/views/ExplorerView.vue
+++ b/frontend/src/views/ExplorerView.vue
@@ -94,7 +94,7 @@ watchEffect(() => {
   justify-content: center;
   height: 100%;
   font-size: 2rem;
-  text-shadow: 0 0 1rem #000, 0 0 2rem #000;
+  text-shadow: 0 0 .3rem #000, 0 0 2rem #0008;
   color: var(--accent-color);
 }
 @keyframes rotate {
@@ -118,6 +118,6 @@ svg.cog {
   margin: 0 auto;
   animation: rotate 10s linear infinite;
   filter: drop-shadow(0 0 1rem black);
-  fill: var(--primary-color);
+  fill: #888;
 }
 </style>