Resolve "Reduce / hide the room creation status messages"

src/assets/config.json

@@ -44,5 +44,6 @@
         }
     ],
     "experimental_voice_mode": true,
-    "experimental_read_only_room": true
+    "experimental_read_only_room": true,
+    "show_status_messages": "never"
 }

src/components/chatMixin.js

@@ -94,6 +94,15 @@ export default {
     CreatePollDialog,
   },
   methods: {
+    showOnlyUserStatusMessages() {
+        // We say that if you can redact events, you are allowed to create polls.
+        // NOTE!!! This assumes that there is a property named "room" on THIS.
+        const me = this.room && this.room.getMember(this.$matrix.currentUserId);
+        let isModerator =
+          me && this.room.currentState && this.room.currentState.hasSufficientPowerLevelFor("redact", me.powerLevel);
+      const show =  this.$config.show_status_messages;
+      return show === "never" || (show === "moderators" && !isModerator)
+    },
     showDayMarkerBeforeEvent(event) {
       const idx = this.events.indexOf(event);
       if (idx <= 0) {
@@ -132,10 +141,12 @@ export default {
                 return ContactKicked;
               }
             return ContactLeave;
-          } else if (event.getContent().membership == "invite") {
-            return ContactInvited;
-          } else if (event.getContent().membership == "ban") {
-            return ContactBanned;
+          } else if (!this.showOnlyUserStatusMessages()) {
+            if (event.getContent().membership == "invite") {
+              return ContactInvited;
+            } else if (event.getContent().membership == "ban") {
+              return ContactBanned;
+            }
           }
           break;
 
@@ -203,34 +214,64 @@ export default {
           }
 
         case "m.room.create":
-          return RoomCreated;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomCreated;
+          }
+          break;
 
         case "m.room.canonical_alias":
-          return RoomAliased;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomAliased;
+          }
+          break;
 
         case "m.room.name":
-          return RoomNameChanged;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomNameChanged;
+          }
+          break;
 
         case "m.room.topic":
-          return RoomTopicChanged;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomTopicChanged;
+          }
+          break;
 
         case "m.room.avatar":
-          return RoomAvatarChanged;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomAvatarChanged;
+          }
+          break;
 
         case "m.room.history_visibility":
-          return RoomHistoryVisibility;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomHistoryVisibility;
+          }
+          break;
 
         case "m.room.join_rules":
-          return RoomJoinRules;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomJoinRules;
+          }
+          break;
 
         case "m.room.power_levels":
-          return RoomPowerLevelsChanged;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomPowerLevelsChanged;
+          }
+          break;
 
         case "m.room.guest_access":
-          return RoomGuestAccessChanged;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomGuestAccessChanged;
+          }
+          break;
 
         case "m.room.encryption":
-          return RoomEncrypted;
+          if (!this.showOnlyUserStatusMessages()) {
+            return RoomEncrypted;
+          }
+          break;
 
         case "m.poll.start":
         case "org.matrix.msc3381.poll.start":