<template>
  <div class="app-container page-nesting">
    <!-- 树形组件start -->
    <div class="grid-content treeDom">
      <div style="text-align: center" class="mb-20">
        <el-button type="primary">添加分组</el-button>
        <el-button type="primary">添加站点</el-button>
      </div>

      <el-input
        placeholder="输入关键字进行过滤"
        v-model="filterText"
        class="mb-20 searchInput"
      >
        <i
          class="el-icon-search el-input__icon"
          slot="suffix"
          
        >
        </i>
      </el-input>

      <el-tree
        class="filter-tree"
        :data="data"
        node-key="id"
        :props="defaultProps"
        :expand-on-click-node="false"
        :render-content="renderContent"
        default-expand-all
        :filter-node-method="filterNode"
        ref="tree"
      >
      </el-tree>
    </div>
    <!-- 树形组件end -->

    <!-- 站点主题start -->
    <div class="grid-content nestingDom" style="width: calc(100% -300px)">
      nestingDom
    </div>
    <!-- 站点主题end -->
  </div>
</template>

<script>
export default {
  data() {
    return {
      filterText: "",
      data: [
        {
          label: "一级 1",
          children: [
            {
              label: "二级 1-1",
            },
            {
              label: "二级 1-2",
            },
            {
              label: "二级 1-3",
            },
            {
              label: "二级 1-4",
            },
          ],
        },
        {
          label: "一级 2",
          children: [
            {
              label: "二级 2-1",
            },
            {
              label: "二级 2-2",
            },
            {
              label: "二级 2-3",
            },
            {
              label: "二级 2-4",
            },
          ],
        },
      ],
      defaultProps: {
        children: "children",
        label: "label",
      },
    };
  },

  watch: {
    filterText(val) {
      this.$refs.tree.filter(val);
    },
  },
  methods: {
    filterNode(value, data) {
      if (!value) return true;
      return data.label.indexOf(value) !== -1;
    },

    handleNodeClick(data) {
      console.log(data);
    },
    append(data) {
      const newChild = { id: id++, label: "testtest", children: [] };
      if (!data.children) {
        this.$set(data, "children", []);
      }
      data.children.push(newChild);
    },

    remove(node, data) {
      const parent = node.parent;
      const children = parent.data.children || parent.data;
      const index = children.findIndex((d) => d.id === data.id);
      children.splice(index, 1);
    },

    renderContent(h, { node, data, store }) {
      return (
        <span class="custom-tree-node">
          <span>{node.label}</span>
          <span>
            <el-button
              size="mini"
              type="text"
              on-click={() => this.remove(node, data)}
            >
              Delete
            </el-button>
          </span>
        </span>
      );
    },
  },
};
</script>
<style scoped lang="scss">
.app-container.page-nesting {
  padding: 0;
  background: rgba(0, 0, 0, 0);
}
.grid-content {
  background: #fff;
  min-height: calc(100vh - 140px);
}
 .el-input__inner{
    border-radius:20px!important
  }
.treeDom {
  width: 270px;
  position: absolute;
  left: 0;
  margin-left: 20px;
  padding: 20px;
 
  .el-icon-search{
    color:#409EFF
  }
  .el-button {
    width: 100px;
  }
}
.nestingDom {
  margin-left: 290px;
}
</style>
