Export chat (from room info page)

src/components/messages/export/MessageIncomingImageExport.vue

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+<template>
+  <message-incoming v-bind="{ ...$props, ...$attrs }" v-on="$listeners">
+    <div class="bubble image-bubble">
+      <v-img :aspect-ratio="16 / 9" ref="image" :src="src" :cover="cover" :contain="contain" />
+    </div>
+  </message-incoming>
+</template>
+
+<script>
+import MessageIncoming from "../MessageIncoming.vue";
+
+export default {
+  name: "MessageIncomingImageExport",
+  extends: MessageIncoming,
+  components: { MessageIncoming },
+  data() {
+    return {
+      src: null,
+      cover: true,
+      contain: false,
+    };
+  },
+  mounted() {
+    const info = this.event.getContent().info;
+    // JPEGs use cover, PNG and GIF ect contain. This is because PNG and GIF are expected to
+    // be stickers and small emoji type things.
+    if (info && info.mimetype && info.mimetype.startsWith("image/jp")) {
+      this.cover = true;
+      this.contain = false;
+    } else {
+      this.cover = false;
+      this.contain = true;
+    }
+  },
+  beforeDestroy() {
+    if (this.src) {
+      const objectUrl = this.src;
+      this.src = null;
+      URL.revokeObjectURL(objectUrl);
+    }
+  },
+};
+</script>
+
+<style lang="scss">
+@import "@/assets/css/chat.scss";
+</style>