fix: 修复部分小程序平台 map 组件事件中无法正确获取 markerId 的问题

src/core/runtime/wrapper/util.js

@@ -291,6 +291,10 @@ function wrapper (event) {
     event.detail = {}
   }
 
+  if (!('markerId' in event.detail) && 'markerId' in event) {
+    event.detail.markerId = event.markerId
+  }
+
   if (__PLATFORM__ === 'mp-baidu') { // mp-baidu，checked=>value
     if (
       isPlainObject(event.detail) &&
@@ -485,18 +489,18 @@ export function handleEvent (event) {
             handlerCtx.$parent.$parent
           ) { // mp-weixin,mp-toutiao 抽象节点模拟 scoped slots
             handlerCtx = handlerCtx.$parent.$parent
-          }
-          if (methodName === '$emit') {
-            handlerCtx.$emit.apply(handlerCtx,
-              processEventArgs(
-                this.$vm,
-                event,
-                eventArray[1],
-                eventArray[2],
-                isCustom,
-                methodName
-              ))
-            return
+          }
+          if (methodName === '$emit') {
+            handlerCtx.$emit.apply(handlerCtx,
+              processEventArgs(
+                this.$vm,
+                event,
+                eventArray[1],
+                eventArray[2],
+                isCustom,
+                methodName
+              ))
+            return
           }
           const handler = handlerCtx[methodName]
           if (!isFn(handler)) {
@@ -528,4 +532,4 @@ export function handleEvent (event) {
   ) {
     return ret[0]
   }
-}
+}

src/platforms/mp-alipay/runtime/wrapper/util.js

 import {
   isFn,
   cached,
-  camelize
+  camelize,
+  hasOwn
 } from 'uni-shared'
 
 import {
@@ -58,6 +59,12 @@ export function initSpecialMethods (mpInstance) {
     specialMethods.forEach(method => {
       if (isFn(mpInstance.$vm[method])) {
         mpInstance[method] = function (event) {
+          if (!hasOwn(event, 'detail')) {
+            event.detail = {}
+          }
+          if (!('markerId' in event.detail) && 'markerId' in event) {
+            event.detail.markerId = event.markerId
+          }
           // TODO normalizeEvent
           mpInstance.$vm[method](event)
         }
@@ -179,4 +186,4 @@ export const handleLink = (function () {
     // 支付宝通过 didMount 来实现，先子后父，故等父 ready 之后，统一初始化
     (this._$childVues || (this._$childVues = [])).unshift(detail)
   }
-})()
+})()