Fix gallery view/preview

src/components/file_mode/GalleryItemsView.vue

@@ -0,0 +1,143 @@
+<template>
+  <div class="fill-screen file-drop-root">
+
+    <div class="chat-header">
+      <v-container fluid class="d-flex justify-space-between align-center">
+        <v-icon @click.stop="$emit('close')" color="white" class="clickable">arrow_back</v-icon>
+        <div class="room-name no-upper">{{ displayDate }}</div>
+        <v-icon @click.stop="showMoreMenu = true" color="white" class="clickable">more_vert</v-icon>
+      </v-container>
+    </div>
+
+    <div class="file-drop-current-item">
+      <ThumbnailView :item="items[currentItemIndex]" />
+      <div class="download-button clickable" @click.stop="downloadOne">
+          <v-icon color="black">arrow_downward</v-icon>
+      </div>
+    </div>
+    <div class="file-drop-thumbnail-container">
+      <div :class="{ 'file-drop-thumbnail': true, 'clickable': true, 'current': id == currentItemIndex }"
+        @click="currentItemIndex = id" v-for="(currentImageInput, id) in items" :key="id">
+        <v-img v-if="currentImageInput && currentImageInput.src" :src="currentImageInput.src" />
+      </div>
+    </div>
+
+    <!-- MORE MENU POPUP -->
+    <MoreMenuPopup :show="showMoreMenu" :menuItems="moreMenuItems" :showProfile="false" @close="showMoreMenu = false" />
+  </div>
+</template>
+
+<script>
+import MoreMenuPopup from "../MoreMenuPopup";
+import messageMixin from "../messages/messageMixin";
+import util from "../../plugins/utils";
+import ThumbnailView from './ThumbnailView.vue';
+
+export default {
+  mixins: [messageMixin],
+  components: { MoreMenuPopup, ThumbnailView },
+  props: {
+    items: {
+      type: Array,
+      default: function () {
+        return []
+      }
+    },
+    initialItem: {
+      type: Object,
+      default: function() {
+        return null;
+      }
+    }
+  },
+  data() {
+    return {
+      currentItemIndex: 0,
+      showMoreMenu: false,
+    };
+  },
+  mounted() {
+    document.body.classList.add("dark");
+    if (this.initialItem) {
+      this.currentItemIndex = this.items.findIndex((v) => v === this.initialItem);
+      if (this.currentItemIndex < 0) {
+        this.currentItemIndex = 0;
+      }
+    }
+  },
+  beforeDestroy() {
+    document.body.classList.remove("dark");
+  },
+  computed: {
+    displayDate() {
+      return util.formatRecordStartTime(this.originalEvent.getTs())
+    },
+    moreMenuItems() {
+      let items = [];
+        items.push({
+          icon: '$vuetify.icons.ic_download', text: this.$t("message.download_all"), handler: () => {
+            this.downloadAll();
+          }
+        });
+      return items;
+    },
+  },
+  watch: {
+    items(newValue, oldValue) {
+      // Added or removed?
+      if (newValue && oldValue && newValue.length > oldValue.length) {
+        this.currentItemIndex = oldValue.length;
+      } else if (newValue) {
+        this.currentItemIndex = newValue.length - 1;
+      }
+    },
+  },
+  methods: {
+    downloadOne() {
+      if (this.currentItemIndex >= 0 && this.currentItemIndex < this.items.length) {
+        util.download(this.$matrix.matrixClient, this.items[this.currentItemIndex].event);
+      }
+    },
+    downloadAll() {
+      this.items.forEach(item => util.download(this.$matrix.matrixClient, item.event));
+    }
+  }
+};
+</script>
+
+<style lang="scss">
+@import "@/assets/css/chat.scss";
+
+.chat-header {
+  position: relative !important;
+  width: 100%;
+}
+
+.file-drop-current-item {
+  position: relative;
+}
+
+.download-button {
+  position: absolute;
+  right: 21px;
+  bottom: 21px;
+  width: 34px;
+  height: 34px;
+  background: rgba(255,255,255,0.8);
+  border-radius: 17px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.fill-screen {
+    position: fixed !important;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: black;
+    z-index: 20;
+    justify-content: space-between !important;
+}
+</style>

src/components/file_mode/ThumbnailView.vue

@@ -0,0 +1,61 @@
+<template>
+    <v-responsive v-if="item.event.getContent().msgtype == 'm.video'" :class="{'thumbnail-item': true, 'preview': previewOnly}"
+        @click.stop="$emit('itemclick', {item: item})">
+        <video :src="item.src"  :controls="!previewOnly" class="w-100 h-100">
+            {{ $t('fallbacks.video_file') }}
+        </video>
+    </v-responsive>
+    <v-img v-else-if="item.event.getContent().msgtype == 'm.image'" :aspect-ratio="previewOnly ? (16 / 9) : undefined" :class="{'thumbnail-item': true, 'preview': previewOnly}" :src="item.src" :contain="!previewOnly" :cover="previewOnly"
+        @click.stop="$emit('itemclick', {item: item})" />
+    <div v-else :class="{'thumbnail-item': true, 'preview': previewOnly, 'file-item': true}" @click.stop="$emit('itemclick', {item: item})">
+        <v-icon>description</v-icon>
+        {{ $sanitize(item.event.getContent().body) }}
+    </div>
+</template>
+<script>
+
+export default {
+    props: {
+        /**
+         * Item is an object of { event: MXEvent, src: URL } 
+         */
+        item: {
+            type: Object,
+            default: function () {
+                return {}
+            }
+        },
+        previewOnly: {
+            type: Boolean,
+            default: function() {
+                return false;
+            }
+        },
+    },
+}
+</script>
+
+
+<style lang="scss">
+@import "@/assets/css/chat.scss";
+
+.thumbnail-item {
+    width: 100%;
+    height: 100%;
+    margin: 0;
+    padding: 0;
+}
+
+.file-item {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.6rem;
+    flex-direction: column;
+    padding: 20px;
+    .v-icon {
+        margin-bottom: 10px;
+        color: currentColor;
+    }
+}
+</style>