fix(v-on): revert component root data.on/data.nativeOn behavior for

weex-vue-render compat

close #6109

Author: yyx990803

src/core/instance/render.js

@@ -54,12 +54,12 @@ export function initRender (vm: Component) {
     defineReactive(vm, '$attrs', parentData && parentData.attrs, () => {
       !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm)
     }, true)
-    defineReactive(vm, '$listeners', parentData && parentData.on, () => {
+    defineReactive(vm, '$listeners', vm.$options._parentListeners, () => {
       !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm)
     }, true)
   } else {
     defineReactive(vm, '$attrs', parentData && parentData.attrs, null, true)
-    defineReactive(vm, '$listeners', parentData && parentData.on, null, true)
+    defineReactive(vm, '$listeners', vm.$options._parentListeners, null, true)
   }
 }
 

src/core/vdom/create-component.js

@@ -161,8 +161,12 @@ export function createComponent (
     return createFunctionalComponent(Ctor, propsData, data, context, children)
   }
 
-  // keep listeners
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
   const listeners = data.on
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn
 
   if (isTrue(Ctor.options.abstract)) {
     // abstract components do not keep anything

src/platforms/web/runtime/modules/events.js

@@ -66,14 +66,11 @@ function remove (
 }
 
 function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
-  const isComponentRoot = isDef(vnode.componentOptions)
-  let oldOn = isComponentRoot ? oldVnode.data.nativeOn : oldVnode.data.on
-  let on = isComponentRoot ? vnode.data.nativeOn : vnode.data.on
-  if (isUndef(oldOn) && isUndef(on)) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
     return
   }
-  on = on || {}
-  oldOn = oldOn || {}
+  const on = vnode.data.on || {}
+  const oldOn = oldVnode.data.on || {}
   target = vnode.elm
   normalizeEvents(on)
   updateListeners(on, oldOn, add, remove, vnode.context)

src/platforms/weex/runtime/modules/events.js

@@ -39,14 +39,11 @@ function remove (
 }
 
 function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
-  const isComponentRoot = !!vnode.componentOptions
-  let oldOn = isComponentRoot ? oldVnode.data.nativeOn : oldVnode.data.on
-  let on = isComponentRoot ? vnode.data.nativeOn : vnode.data.on
-  if (!oldOn && !on) {
+  if (!oldVnode.data.on && !vnode.data.on) {
     return
   }
-  on = on || {}
-  oldOn = oldOn || {}
+  const on = vnode.data.on || {}
+  const oldOn = oldVnode.data.on || {}
   target = vnode.elm
   updateListeners(on, oldOn, add, remove, vnode.context)
 }