other / mew-iview

  <template>
       <div :class="wrapClasses"><slot></slot></div>

  </template>
  <script>
      const prefixCls = 'ivu-layout';
  
      export default {
          name: 'Layout',

          data () {
              return {

                  hasSider: false
              };
          },
          computed: {
              wrapClasses () {
                  return [
                      `${prefixCls}`,

                      {
                          [`${prefixCls}-has-sider`]: this.hasSider
                      }
                  ];
              }
          },
          methods: {
              findSider () {
                  return this.$children.some(child => {

                      return child.$options._componentTag === 'Sider'; 

                  });
              }
          },
          mounted () {
              this.hasSider = this.findSider();
          }
      };
  </script>