<template>
  <div id="app">
    <div class="head">
      <div class="logo">
        <img style="height: 40px;margin-top: 10px;" class="left nav-icon" src="https://x.cocorobo.cn/icons/logo.png" />
        <!-- <span
          style="
            font-size: 28px;
            font-family: 'GT Walsheim Pro Trial Bold';
            font-weight: bold;
            color: #fff;
          "
          >CocoBlockly</span
        > -->
      </div>
    </div>

    <div style="height: calc(100% - 67.5px)">
      <!-- main 内容 -->
      <keep-alive v-if="$route.meta.keepAlive">
        <!-- 这里是会被缓存的视图组件 -->
        <router-view v-if="$route.meta.keepAlive" />
      </keep-alive>
      <!-- 这里是不被缓存的视图组件 -->
      <router-view v-if="!$route.meta.keepAlive" />
    </div>
  </div>
</template>

<script>
export default {
  name: "App",
  created() {
    //在页面加载时读取sessionStorage里的状态信息
    if (sessionStorage.getItem("store")) {
      this.$store.replaceState(
        Object.assign(
          {},
          this.$store.state,
          JSON.parse(sessionStorage.getItem("store"))
        )
      );
    }

    //在页面刷新时将vuex里的信息保存到sessionStorage里
    window.addEventListener("beforeunload", () => {
      sessionStorage.setItem("store", JSON.stringify(this.$store.state));
    });
  },
};
</script>

<style>
* {
  margin: 0;
  padding: 0;
}
body {
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
}
#app {
  height: 100%;
  width: 100%;
  /* background: #e6eaf0; */
  /* min-width: 1380px; */
  min-width: 1000px;
}
.head {
  height: 67.5px;
  width: 100%;
  background-color: #2c4fcd;
  display: flex;
  align-items: center;
  min-width: 1000px;
}
.logo {
  margin-left: 20px;
}
</style>
