问题描述

微信自定义嵌套组件里不支持 kebab-case 写法的事件，驼峰写法是没问题的。

复现步骤

复现代码：https://github.com/auven/vant-weapp-example-uni-app/blob/master/src/pages/test-van-popup/index.vue ，可以 clone 下来看看

https://github.com/auven/vant-weapp-example-uni-app/blob/master/src/wxcomponents/van-popup-test/index.wxml

<view>
  <van-cell title="事件名 kebab-case 写法" is-link bind:click="showPopup" />

  <van-popup
    show="{{ show }}"
    round
    position="bottom"
    custom-style="height: 20%"
    bind:close="onClose"
    bind:click-overlay="onClickOverlay"    <--- 无法执行
    bind:before-enter="onBeforeEnter"     <--- 无法执行
    bind:enter="onEnter"
    bind:after-enter="onAfterEnter"           <--- 无法执行
    bind:before-leave="onBeforeLeave"    <--- 无法执行
    bind:leave="onLeave"
    bind:after-leave="onAfterLeave"          <--- 无法执行
  />

  <van-cell title="事件名 PascalCase 写法" is-link bind:click="showPopup1" />

  <van-popup
    show="{{ show1 }}"
    round
    position="bottom"
    custom-style="height: 20%"
    bind:close="onClose1"
    bind:clickOverlay="onClickOverlay"       <--- 正常执行
    bind:beforeEnter="onBeforeEnter"        <--- 正常执行
    bind:enter="onEnter"
    bind:afterEnter="onAfterEnter"              <--- 正常执行
    bind:beforeLeave="onBeforeLeave"      <--- 正常执行
    bind:leave="onLeave"
    bind:afterLeave="onAfterLeave"            <--- 正常执行
  />
</view>

预期结果

支持在微信自定义嵌套组件使用 kebab-case 写法的事件。

实际结果

在使用 vant-weapp 的 van-dropdown-menu 时 closed 事件没执行，因为其内部嵌套了 van-popup ，而 closed 事件是由 van-popup 的 after-leave 事件触发的。

系统信息:

uni-app v2.8.1
uni-app cli v2.0.0-alpha-28120200721001

Environment Info:

  System:
    OS: macOS 10.15.3
    CPU: (8) x64 Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz
  Binaries:
    Node: 10.15.3 - /usr/local/bin/node
    Yarn: Not Found
    npm: 6.4.1 - /usr/local/bin/npm
  Browsers:
    Chrome: 84.0.4147.89
    Firefox: Not Found
    Safari: 13.0.5
  npmPackages:
    @dcloudio/uni-app-plus: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-app-plus-nvue:  0.0.1 
    @dcloudio/uni-app-plus-nvue-v8:  0.0.1 
    @dcloudio/uni-automator: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-cli-shared: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-h5: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-helper-json: * => 1.0.5 
    @dcloudio/uni-migration: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-mp-alipay: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-mp-baidu: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-mp-qq: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-mp-toutiao: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/uni-mp-weixin: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-quickapp-light: ^2.0.0-26920200424005 => 2.0.0-26920200424005 
    @dcloudio/uni-quickapp-native: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-quickapp-vue: ^2.0.0-26920200424005 => 2.0.0-26920200424005 
    @dcloudio/uni-quickapp-webview: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/uni-stat: ^2.0.0-v3-24020191018001 => 2.0.0-v3-24020191018001 
    @dcloudio/uni-template-compiler: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/vue-cli-plugin-hbuilderx: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/vue-cli-plugin-uni: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/vue-cli-plugin-uni-optimize: ^2.0.0-alpha-28120200720003 => 2.0.0-alpha-28120200720003 
    @dcloudio/webpack-uni-mp-loader: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @dcloudio/webpack-uni-nvue-loader:  0.0.1 
    @dcloudio/webpack-uni-pages-loader: ^2.0.0-alpha-28120200721001 => 2.0.0-alpha-28120200721001 
    @hap-toolkit/dsl-vue:  0.6.13 
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.1.2 
    @vue/babel-preset-app:  4.4.6 
    @vue/babel-preset-jsx:  1.1.2 
    @vue/babel-sugar-functional-vue:  1.1.2 
    @vue/babel-sugar-inject-h:  1.1.2 
    @vue/babel-sugar-v-model:  1.1.2 
    @vue/babel-sugar-v-on:  1.1.2 
    @vue/cli-overlay:  4.4.6 
    @vue/cli-plugin-babel: ^4.4.6 => 4.4.6 
    @vue/cli-plugin-router:  4.4.6 
    @vue/cli-plugin-vuex:  4.4.6 
    @vue/cli-service: ^4.4.6 => 4.4.6 
    @vue/cli-shared-utils:  4.4.6 
    @vue/component-compiler-utils:  3.1.2 (3.1.2)
    @vue/preload-webpack-plugin:  1.1.1 
    @vue/web-component-wrapper:  1.2.0 
    mpvue-page-factory:  1.0.1 
    mpvue-template-compiler:  1.0.13 
    uni-h5-vue:  2.6.10 
    uni-mp-vue:  2.6.10 
    vue: ^2.6.11 => 2.6.11 
    vue-hot-reload-api:  2.3.4 
    vue-loader:  15.9.1 (15.9.3, 15.9.1)
    vue-router:  3.0.1 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.6.11 => 2.6.11 
    vue-template-es2015-compiler:  1.9.1 
    vuex: ^3.5.1 => 3.5.1 
  npmGlobalPackages:
    @vue/cli: 4.3.1