fix(mp): v-slot can only be used on components or <template> tags (#3094)

packages/uni-h5/dist/uni-h5.es.js

@@ -1249,7 +1249,7 @@ function getWxsVm(el) {
   }
 }
 const isClickEvent = (val) => val.type === "click";
-const isMouseEvent = (val) => val.type.indexOf("mouse") === 0;
+const isMouseEvent = (val) => val.type.indexOf("mouse") === 0 || ["contextmenu"].includes(val.type);
 function $nne(evt, eventValue, instance2) {
   const { currentTarget } = evt;
   if (!(evt instanceof Event) || !(currentTarget instanceof HTMLElement)) {

packages/uni-mp-compiler/__tests__/vSlot.spec.ts

@@ -21,6 +21,13 @@ describe('compiler: transform v-slot', () => {
       `<custom u-s="{{['d']}}" u-i="2a9ec0b0-0"><view slot="d">test</view></custom>`,
       `(_ctx, _cache) => {
   return {}
+}`
+    )
+    assert(
+      `<custom><view>test</view></custom>`,
+      `<custom u-s="{{['d']}}" u-i="2a9ec0b0-0"><view slot="d">test</view></custom>`,
+      `(_ctx, _cache) => {
+  return {}
 }`
     )
   })

packages/uni-mp-compiler/src/transforms/vSlot.ts

@@ -127,11 +127,11 @@ export const transformSlot: NodeTransform = (node, context) => {
       // <custom>test</custom> => <custom><template #default>test</template></custom>
       const vSlotDir = createDirectiveNode('slot', 'default')
       const child = implicitDefaultChildren[0] as ElementNode
-      const isSingleElementNode =
+      const isSingleComponent =
         implicitDefaultChildren.length === 1 &&
-        child.type === NodeTypes.ELEMENT &&
+        isUserComponent(child, context) &&
         !findDir(child, 'for')
-      if (isSingleElementNode) {
+      if (isSingleComponent) {
         child.props.unshift(vSlotDir)
       } else {
         const templateNode = createTemplateNode(