perf: 优化阅读消息列表机制

package.json

@@ -68,7 +68,7 @@
         "vue-resize-observer": "^2.0.16",
         "vue-router": "^3.6.5",
         "vue-template-compiler": "~2.6.14",
-        "vue-virtual-scroll-list-hi": "^2.3.5-5",
+        "vue-virtual-scroll-list-hi": "^2.3.5-7",
         "vuedraggable": "^2.24.3",
         "vuex": "^3.6.2"
     },

resources/assets/js/pages/manage/components/DialogItem.vue

@@ -170,10 +170,7 @@ export default {
             if (!this.windowActive) {
                 return;
             }
-            if (!this.$el) {
-                return;
-            }
-            if (this.$el.parentNode.classList.contains('inactive')) {
+            if (!this.$el?.parentNode.classList.contains('item-enter')) {
                 return;
             }
             // 标记已读

resources/assets/js/pages/manage/components/DialogWrapper.vue

@@ -148,7 +148,7 @@
         <VirtualList
             ref="scroller"
             class="dialog-scroller scrollbar-virtual"
-            item-inactive-class="inactive"
+            active-prefix="item"
             :class="scrollerClass"
             :data-key="'id'"
             :data-sources="allMsgs"
@@ -974,9 +974,6 @@ export default {
             }))
             if (item.label === '{UNREAD}') {
                 item.label = this.$L(`未读消息${unread}条`)
-                item.is_unread = unread > 1
-            } else {
-                item.is_unread = false
             }
             return item
         },
@@ -1217,8 +1214,13 @@ export default {
             }
         },
 
-        positionMsg(msg) {
-            if (msg && msg.is_unread === true) {
+        positionMsg() {
+            const {unread, position_msgs} = this.dialogData
+            if (!$A.isArray(position_msgs) || unread < 2) {
+                return
+            }
+            const msg = position_msgs.find(item => item.label === '{UNREAD}')
+            if (msg) {
                 this.unreadMsgId = msg.msg_id
             }
         }

resources/assets/sass/pages/components/dialog-wrapper.scss

@@ -432,7 +432,7 @@
             -webkit-overflow-scrolling: touch;
         }
 
-        .inactive {
+        .item-leave {
             pre, code {
                 visibility: hidden;
             }