fix(mp): support mixin runtime hooks (question/140351)

packages/uni-mp-core/src/runtime/componentHooks.ts

 import {
   MINI_PROGRAM_PAGE_RUNTIME_HOOKS,
+  once,
   ON_ADD_TO_FAVORITES,
   ON_HIDE,
   ON_LOAD,
@@ -11,7 +12,7 @@ import {
   ON_TAB_ITEM_TAP,
   ON_UNLOAD,
 } from '@dcloudio/uni-shared'
-import { hasOwn, isFunction } from '@vue/shared'
+import { hasOwn, isArray, isFunction } from '@vue/shared'
 
 import { ComponentOptions } from 'vue'
 
@@ -113,3 +114,28 @@ export function initRuntimeHooks(
     }
   })
 }
+
+const findMixinRuntimeHooks = /*#__PURE__*/ once(() => {
+  const runtimeHooks: string[] = []
+  const app = getApp({ allowDefault: true })
+  if (app && app.$vm && app.$vm.$) {
+    const mixins = app.$vm.$.appContext.mixins as ComponentOptions[]
+    if (isArray(mixins)) {
+      const hooks = Object.keys(MINI_PROGRAM_PAGE_RUNTIME_HOOKS)
+      mixins.forEach((mixin) => {
+        hooks.forEach((hook) => {
+          if (hasOwn(mixin, hook) && !runtimeHooks.includes(hook)) {
+            runtimeHooks.push(hook)
+          }
+        })
+      })
+    }
+  }
+  return runtimeHooks
+})
+
+export function initMixinRuntimeHooks(
+  mpOptions: MiniProgramAppOptions | WechatMiniprogram.Component.MethodOption
+) {
+  initHooks(mpOptions, findMixinRuntimeHooks())
+}

packages/uni-mp-core/src/runtime/page.ts

@@ -12,6 +12,7 @@ import {
   initHooks,
   initUnknownHooks,
   initRuntimeHooks,
+  initMixinRuntimeHooks,
 } from './componentHooks'
 import { initPageProps } from './componentProps'
 
@@ -51,6 +52,7 @@ function parsePage(
   initHooks(methods, PAGE_INIT_HOOKS)
   initUnknownHooks(methods, vueOptions)
   initRuntimeHooks(methods, vueOptions.__runtimeHooks)
+  initMixinRuntimeHooks(methods)
   parse && parse(miniProgramPageOptions, { handleLink })
 
   return miniProgramPageOptions