fix: stricter message data model validation + allow empty avatars and…

… names

README.md

@@ -73,7 +73,7 @@ The messaging view exposes a programmatic API that lets applications manipulate
 - Pull out a message from the store: `MessagingStore.retract(messageId<string>)<boolean>`
 - Flush all content from the store: `MessagingStore.flush()<boolean>`
 
-All inserted message objects are required to hold the following keys: `id`, `type`, `date`, `content` and `from`. When updating an existing message, only modified keys need to be passed.
+All inserted message objects are required to hold the following keys: `id`, `type`, `date`, `content` and `from` (with at least `from.jid` set). When updating an existing message, only modified keys need to be passed.
 
 **Text messages are formatted as such:**
 

src/messaging/components/avatar/avatar.css

@@ -16,3 +16,7 @@
   object-fit: cover;
   display: block;
 }
+
+.avatar.avatar--placeholder {
+  box-shadow: none;
+}

src/messaging/messaging.html

@@ -44,11 +44,18 @@
       :key="entry.id + '@' + (entry.updatedAt || 0)"
     >
       <div class="message" v-if="message" v-scope="Message(message)">
-        <img class="avatar" v-scope="Avatar(user)" :src="avatarUrl" alt="" />
+        <img
+          v-if="user.avatar"
+          class="avatar"
+          v-scope="Avatar(user)"
+          :src="avatarUrl"
+          alt=""
+        />
+        <span v-else class="avatar avatar--placeholder"></span>
 
         <div class="message-inner" @vue:mounted="mounted">
           <div class="message-origin">
-            <span class="message-origin-name">{{ user.name }}</span>
+            <span class="message-origin-name">{{ user.name || user.jid }}</span>
 
             <span v-if="date" class="message-origin-date">{{ date }}</span>
           </div>

src/messaging/stores/feed.js

@@ -89,7 +89,8 @@ function FeedStore() {
           !message.type ||
           !message.date ||
           !message.content ||
-          !message.from
+          !message.from ||
+          !message.from.jid
         ) {
           throw new Error(
             "Message to insert is incomplete (missing attribute)"