前端自定义组件之锚点分组

本文将讲解如何通过自定义,实现锚点组件。这个锚点组件会根据界面设计器拖入的分组,动态解析出锚点。
前端自定义组件之锚点分组

实现路径

整体的实现思路是界面设计器拖个容器类的组件(这里以选项卡为例),自定义这个选项卡,往选项卡里拖拽的每个分组,每个锚点的名称是分组的标题。

1. 界面设计器拖出页面

我们界面设计器拖个选项卡组件,然后在选项页里拖拽任意多个分组。完成后点击右上角九宫格,选中选项卡,填入组件 api 名称,作用是把选项卡切换成我们自定义的锚点分组组件,这里的 api 名称和自定义组件的 widget 对应。最后发布页面,并绑定菜单。

2. 组件实现

widget 组件重写了选项卡,核心函数 renderGroups,通过 DslRender.render 方法渲染界面设计器拖拽的分组。

import { BasePackWidget, DslDefinition, DslRender, SPI, Widget } from '@oinone/kunlun-dependencies';
import TabsParseGroup from './TabsParseGroup.vue';

function fetchGroupChildren(widgets?: DslDefinition[], level = 1): DslDefinition[] {
  if (!widgets) {
    return [];
  }
  const children: DslDefinition[] = [];
  for (const widget of widgets) {
    if (widget.widget === 'group') {
      children.push(widget);
    } else if (level >= 1) {
      fetchGroupChildren(widget.widgets, level - 1).forEach((child) => children.push(child));
    }
  }
  return children;
}

@SPI.ClassFactory(
  BasePackWidget.Token({
    widget: 'TabsParseGroup'
  })
)
export class TabsParseGroupWidget extends BasePackWidget {
  public initialize(props) {
    super.initialize(props);
    this.setComponent(TabsParseGroup);
    return this;
  }

  // 获取分组的子元素
  public get groupChildren(): DslDefinition[] {
    return fetchGroupChildren(this.template?.widgets);
  }

  @Widget.Reactive()
  public get groupTitles() {
    return this.groupChildren.map((group) => group.title);
  }

  // 根据容器子元素渲染左侧
  @Widget.Method()
  public renderGroups() {
    if (this.groupChildren && this.groupChildren.length) {
      return this.groupChildren.map((group) => DslRender.render(group));
    }
  }
}

vue组件核心内容是用component :is属性,渲染出配置的分组组件

<template>
  <div class="TabsParseGroup">
    <a-anchor :affix="false">
      <a-anchor-link v-for="(item, index) in groupTitles" :href="`#default-group-${index}`" :title="item" />
    </a-anchor>
    <div v-for="(item, index) in groupComponents" :id="`default-group-${index}`">
      <component :is="item" />
    </div>
  </div>
</template>

<script lang="ts">
import { computed, defineComponent, PropType } from 'vue';

export default defineComponent({
  name: 'TabsParseGroup',
  components: {},
  props: {
    renderGroups: {
      type: Function
    },
    groupTitles: {
      type: Array as PropType<string[]>
    }
  },
  setup(props) {
    const groupComponents = computed(() => props.renderGroups?.());

    return {
      groupComponents
    };
  }
});
</script>

<style lang="scss">
.TabsParseGroup > .ant-anchor-wrapper > .ant-anchor {
  display: flex;
}
</style>

3. 效果

前端自定义组件之锚点分组

Oinone社区 作者:银时原创文章,如若转载,请注明出处:https://doc.oinone.top/other/21349.html

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