Redo everything in the MR

src/components/gallery/gallery.js

@@ -0,0 +1,55 @@
+import Attachment from '../attachment/attachment.vue'
+import { chunk, last, dropRight } from 'lodash'
+
+const Gallery = {
+  data: () => ({
+    width: 500
+  }),
+  props: [
+    'attachments',
+    'nsfw',
+    'setMedia'
+  ],
+  components: { Attachment },
+  mounted () {
+    this.resize()
+    window.addEventListener('resize', this.resize)
+  },
+  destroyed () {
+    window.removeEventListener('resize', this.resize)
+  },
+  computed: {
+    rows () {
+      if (!this.attachments) {
+        return []
+      }
+      const rows = chunk(this.attachments, 3)
+      if (last(rows).length === 1 && rows.length > 1) {
+        // if 1 attachment on last row -> add it to the previous row instead
+        const lastAttachment = last(rows)[0]
+        const allButLastRow = dropRight(rows)
+        last(allButLastRow).push(lastAttachment)
+        return allButLastRow
+      }
+      return rows
+    },
+    rowHeight () {
+      return itemsPerRow => ({ 'height': `${(this.width / (itemsPerRow + 0.6))}px` })
+    },
+    useContainFit () {
+      return this.$store.state.config.useContainFit
+    }
+  },
+  methods: {
+    resize () {
+      // Quick optimization to make resizing not always trigger state change,
+      // only update attachment size in 10px steps
+      const width = Math.floor(this.$el.getBoundingClientRect().width / 10) * 10
+      if (this.width !== width) {
+        this.width = width
+      }
+    }
+  }
+}
+
+export default Gallery