add spoiler text support

routes/_components/Media.html

@@ -5,20 +5,20 @@
     <button type="button"
             class="play-video-button"
             aria-label="Play video"
-            on:click="onClickPlayVideoButton(media, getSmallWidth(media), getSmallHeight(media))">
+            on:click="onClickPlayVideoButton(media, getSmallWidth(media), getSmallHeight(media), media.description)">
       <div class="svg-wrapper">
         <svg>
           <use xlink:href="#fa-play-circle" />
         </svg>
       </div>
-      <img aria-hidden="true"
+      <img alt="{{media.description || ''}}"
-           alt=""
            src="{{media.preview_url}}"
            width="{{getSmallWidth(media)}}"
            height="{{getSmallHeight(media)}}" />
     </button>
     {{elseif media.type === 'gifv'}}
     <video
+           aria-label="Animated GIF: {{media.description || ''}}"
            poster="{{media.preview_url}}"
            src="{{media.url}}"
            width="{{getSmallWidth(media)}}"
@@ -29,8 +29,8 @@
            playsinline
     />
     {{else}}
-      <img src="{{media.preview_url}}"
+      <img alt="{{media.description || ''}}"
-           alt="{{media.description || ''}}"
+           src="{{media.preview_url}}"
            width="{{getSmallWidth(media)}}"
            height="{{getSmallHeight(media)}}"/>
     {{/if}}
@@ -112,8 +112,8 @@
       minMediaWidth: (mediaAttachments) => Math.min.apply(Math, mediaAttachments.map(media => media.meta && media.meta.small && typeof media.meta.small.width === 'number' ?  media.meta.small.width : DEFAULT_MEDIA_WIDTH))
     },
     methods: {
-      async onClickPlayVideoButton(media, width, height) {
+      async onClickPlayVideoButton(media, width, height, description) {
-        showVideoDialog(media.preview_url, media.url, width, height)
+        showVideoDialog(media.preview_url, media.url, width, height, description)
       }
     }
   }

routes/_components/Status.html

@@ -1,4 +1,4 @@
-<article class="status-article" tabindex="0" aria-posinset="{{index}}" aria-setsize="{{length}}">
+<article class="status-article" tabindex="0" aria-posinset="{{index}}" aria-setsize="{{length}}" on:recalculateHeight>
   {{#if status.reblog}}
     <div class="status-boosted">
       <svg>
@@ -16,14 +16,26 @@
       {{originalAccount.display_name || originalAccount.username}}
     </a>
     <span class="status-author-handle">
-      @{{originalAccount.acct}}
+      {{'@' + originalAccount.acct}}
     </span>
     <a class="status-author-date" rel="noopener" target="_blank" href="{{originalStatus.uri}}">
       <time datetime={{createdAtDate}} title="{{relativeDate}}">{{relativeDate}}</time>
     </a>
   </div>
   <Avatar account={{originalAccount}} className="status-sidebar"/>
-  <div class="status-content">{{{status.content}}}</div>
+  {{#if status.spoiler_text}}
+    <div class="status-spoiler">{{status.spoiler_text}}</div>
+  {{/if}}
+  {{#if status.spoiler_text}}
+    <div class="status-spoiler-button">
+      <button type="button" on:click="onClickSpoilerButton()">Show more</button>
+    </div>
+  {{/if}}
+  {{#if !status.spoiler_text || spoilerShown}}
+    <div class="status-content">
+      {{{status.content}}}
+    </div>
+  {{/if}}
   <Toolbar :status />
   <Media mediaAttachments="{{originalMediaAttachments}}" />
 </article>
@@ -37,6 +49,8 @@
     grid-template-areas:
         ".............. status-boosted"
         "status-sidebar status-author"
+        "status-sidebar status-spoiler"
+        "status-sidebar status-spoiler-button"
         "status-sidebar status-content"
         ".............. status-toolbar"
         "status-media   status-media";
@@ -50,6 +64,25 @@
     margin: 0 10px 0 0;
   }
 
+  .status-spoiler {
+    grid-area: status-spoiler;
+    word-wrap: break-word;
+    overflow: hidden;
+    white-space: pre-wrap;
+    font-size: 1.1em;
+    margin: 5px;
+  }
+
+  .status-spoiler-button {
+    grid-area: status-spoiler-button;
+    margin: 5px;
+  }
+
+  .status-spoiler-button button {
+    padding: 5px 10px;
+    font-size: 1.1em;
+  }
+
   .status-author {
     grid-area: status-author;
     display: flex;
@@ -94,7 +127,7 @@
   }
 
   .status-content {
-    margin: 10px 10px 20px 5px;
+    margin: 10px 10px 10px 5px;
     grid-area: status-content;
     word-wrap: break-word;
     overflow: hidden;
@@ -160,6 +193,12 @@
       originalStatus: (status) => status.reblog ? status.reblog : status,
       originalAccount: (originalStatus) => originalStatus.account,
       originalMediaAttachments: (originalStatus) => originalStatus.media_attachments,
+    },
+    methods: {
+      onClickSpoilerButton() {
+        this.set({spoilerShown: !this.get('spoilerShown')})
+        this.fire('recalculateHeight')
+      }
     }
   }
 </script>

routes/_components/StatusListItem.html

@@ -1,4 +1,4 @@
-<Status status="{{virtualProps}}" index="{{virtualIndex}}" length="{{virtualLength}}"/>
+<Status status="{{virtualProps}}" index="{{virtualIndex}}" length="{{virtualLength}}" on:recalculateHeight />
 <script>
   import Status from './Status.html'
 

routes/_components/VideoDialog.html

@@ -8,6 +8,7 @@
          src="{{src}}"
          width="{{width}}"
          height="{{height}}"
+         aria-label="Video: {{description || ''}}"
          controls
   />
 </div>

routes/_components/VirtualListItem.html

@@ -1,10 +1,9 @@
 <div class="virtual-list-item {{shown ? 'shown' : ''}}"
      virtual-list-key="{{key}}"
      ref:node
-     style="transform: translateY({{offset}}px
+     style="transform: translateY({{offset}}px);" >
-     );"
+  <:Component {component} virtualProps="{{props}}" virtualIndex="{{index}}" virtualLength="{{$numItems}}"
->
+              on:recalculateHeight="doRecalculateHeight()"/>
-  <:Component {component} virtualProps="{{props}}" virtualIndex="{{index}}" virtualLength="{{$numItems}}"/>
 </div>
 <style>
   .virtual-list-item {
@@ -23,7 +22,8 @@
   import { virtualListStore } from '../_utils/virtualListStore'
   import { AsyncLayout } from '../_utils/AsyncLayout'
 
-  const asyncLayout = new AsyncLayout(node => node.getAttribute('virtual-list-key'))
+  const keyGetter = node => node.getAttribute('virtual-list-key')
+  const asyncLayout = new AsyncLayout(keyGetter)
 
   export default {
     oncreate() {
@@ -40,6 +40,17 @@
     store: () => virtualListStore,
     computed: {
       'shown': ($itemHeights, key) => $itemHeights[key] > 0
+    },
+    methods: {
+      doRecalculateHeight() {
+        let tempAsyncLayout = new AsyncLayout(keyGetter)
+        let key = this.get('key')
+        tempAsyncLayout.observe(key, this.refs.node, (rect) => {
+          tempAsyncLayout.disconnect()
+          // update all item heights in one microtask batch for better perf
+          this.store.batchUpdate('itemHeights', key, rect.height)
+        })
+      }
     }
   }
 </script>

routes/_utils/AsyncLayout.js

@@ -26,6 +26,11 @@ class AsyncLayout {
     this._intersectionObserver.unobserve(node)
     delete this._onIntersectionCallbacks[key]
   }
+
+  disconnect() {
+    this._intersectionObserver.disconnect()
+    this._intersectionObserver = null
+  }
 }
 
 export { AsyncLayout }

routes/_utils/showVideoDialog.js

@@ -1,6 +1,6 @@
 import VideoDialog from '../_components/VideoDialog.html'
 
-export function showVideoDialog(poster, src, width, height) {
+export function showVideoDialog(poster, src, width, height, description) {
   let dialog = document.createElement('dialog')
   dialog.classList.add('video-dialog')
   dialog.setAttribute('aria-label', 'Video dialog')
@@ -12,7 +12,8 @@ export function showVideoDialog(poster, src, width, height) {
       src: src,
       dialog: dialog,
       width: width,
-      height: height
+      height: height,
+      description: description
     }
   })
   videoDialog.showModal()

routes/settings/instances/[instanceName].html

@@ -9,10 +9,10 @@
     {{#if instanceUserAccount}}
       <h2>Logged in as:</h2>
       <div class="acct-current-user">
-        <img alt="Profile picture for @{{instanceUserAccount.acct}}"
+        <img alt="Profile picture for {{'@' + instanceUserAccount.acct}}"
              class="acct-avatar" src="{{instanceUserAccount.avatar}}" />
         <a class="acct-handle" rel="noopener" target="_blank"
-           href="{{instanceUserAccount.url}}">@{{instanceUserAccount.acct}}</a>
+           href="{{instanceUserAccount.url}}">{{'@' + instanceUserAccount.acct}}</a>
         <span class="acct-display-name">{{instanceUserAccount.display_name}}</span>
       </div>
       <h2>Theme:</h2>