<template>
  <section class="app-main">
    <!-- <transition name="fade-transform" mode="out-in"> -->
    <!-- <keep-alive> -->
    <!-- 需要缓存的视图组件 -->
    <!-- <router-view v-if="$route.meta.keepAlive" :key="key" /> -->
    <!-- </keep-alive>
    </transition> -->
    <transition name="fade-transform" mode="out-in">
      <!-- 不需要缓存的视图组件 -->
      <router-view :key="key" />
    </transition>
  </section>
</template>

<script>
export default {
  name: 'AppMain',
  computed: {
    key() {
      return this.$route.path
    }
  }
}
</script>

<style scoped>
.app-main {
  /*50 = navbar  */
  /* min-height: calc(100vh - 30px); */
  height: calc(100vh - 30px);
  width: 100%;
  position: relative;
  overflow: hidden;
  background-color: #f4f8f9;
}
.fixed-header+.app-main {
  /* margin-top: 152px; */
  padding-top: 142px;
}
</style>

<style lang="scss">
// fix css style bug in open el-dialog
.el-popup-parent--hidden {
  .fixed-header {
    padding-right: 15px;
  }
}
</style>
