修复pull-message会重复响应的问题

packages/components/index.vue

@@ -77,7 +77,7 @@ export default {
     return {
       drawerVisible: !this.hideDrawer,
       currentContactId:null,
-      currentMessagesId:null,
+      currentMessages:[],
       activeSidebar: DEFAULT_MENU_LASTMESSAGES,
       contacts: [],
       menus: [],
@@ -105,9 +105,6 @@ export default {
     await this.$nextTick();
   },
   computed: {
-    currentMessages() {
-      return messages[this.currentMessagesId] || [];
-    },
     currentContact() {
       return this.contacts.find(item => item.id == this.currentContactId) || {};
     },
@@ -216,6 +213,7 @@ export default {
       );
     },
     _emitPullMessages(next) {
+      this._changeContactLock = true;
       this.$emit(
         "pull-messages",
         this.currentContact,
@@ -223,7 +221,8 @@ export default {
           this._addMessage(messages, this.currentContactId, 0);
           CacheMessageLoaded.set(this.currentContactId, isEnd);
           if (isEnd == true) this.$refs.messages.loaded();
-          this.currentMessagesId = this.currentContactId;
+          this.updateCurrentMessages();
+          this._changeContactLock = false;
           next(isEnd);
         }
       );
@@ -521,6 +520,10 @@ export default {
           : `[!${match}]`;
       });
     },
+    updateCurrentMessages(){
+      if(!messages[this.currentContactId]) messages[this.currentContactId] = []
+      this.currentMessages = messages[this.currentContactId];
+    },
     /**
      * 将当前聊天窗口滚动到底部
      */
@@ -531,28 +534,30 @@ export default {
      * 改变聊天对象
      * @param contactId 联系人 id
      */
-    changeContact(contactId, menuName) {
-      if (this.currentContactId == contactId) {
-        this.currentContactId = undefined;
-      }
+    async changeContact(contactId, menuName) {
+      if(this._changeContactLock || this.currentContactId == contactId) return false;
 
       if (menuName) {
         this.changeMenu(menuName);
       }
-      this.currentContactId = contactId;
 
+      this.currentContactId = contactId;
       this.$emit("change-contact", this.currentContact);
       if (isFunction(this.currentContact.renderContainer)) {
         return;
       }
-      if (!CacheMessageLoaded.has(contactId)) {
+      if (CacheMessageLoaded.has(contactId)) {
+        this.$refs.messages.loaded();
+      }else{
         this.$refs.messages.resetLoadState();
       }
+
       if (!messages[contactId]) {
+        this.updateCurrentMessages();
         this._emitPullMessages(isEnd => this.messageViewToBottom());
       } else {
         setTimeout(() => {
-          this.currentMessagesId = this.currentContactId;
+          this.updateCurrentMessages();
           this.messageViewToBottom();
         }, 0);
       }