vite+vue3项目中使用SVG

最新推荐文章于 2025-02-13 15:00:33 发布

Licia_dd

最新推荐文章于 2025-02-13 15:00:33 发布

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分类专栏：开发过程Q&A 文章标签： vue.js

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第一步：安装svg-sprite-loader

npm i svg-sprite-loader

第二步：在components目录下创建SvgIcon.vue文件

<template>
  <svg :class="svgClass" v-bind="$attrs" :style="{ color: color }">
    <use :xlink:href="iconName" rel="external nofollow"   />
  </svg>
</template>

<script setup>
import { defineProps, computed } from "vue"

const props = defineProps({
  name: {
    type: String,
    required: true
  },
  color: {
    type: String,
    default: ""
  }
})

const iconName = computed(() => `#icon-${props.name}`)
const svgClass = computed(() => {
  console.log(props.name, "props.name")
  if (props.name) {
     return `svg-icon ${iconName.value}`
  }
  return "svg-icon"
})
</script>

<style scoped>
.svg-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  vertical-align: middle;
}
</style>

第三步：在src目录下的assets文件夹下创建svg文件夹，用来存放SVG文件

第四步：在main.ts中将SvgIcon组件全局注册

第五步：在src下新建plugins文件夹，创建svgBuilder.js

import { readFileSync, readdirSync } from "fs";
let idPerfix = "";
const svgTitle = /<svg([^>+].*?)>/;
const clearHeightWidth = /(width|height)="([^>+].*?)"/g;
const hasViewBox = /(viewBox="[^>+].*?")/g;

const clearReturn = /(\r)|(\n)/g;

function findSvgFile(dir) {
  const svgRes = [];
  const dirents = readdirSync(dir, {
    withFileTypes: true,
  });
  for (const dirent of dirents) {
    if (dirent.isDirectory()) {
      svgRes.push(...findSvgFile(dir + dirent.name + "/"));
    } else {
      const svg = readFileSync(dir + dirent.name)
        .toString()
        .replace(clearReturn, "")
        .replace(svgTitle, ($1, $2) => {
          let width = 0;
          let height = 0;
          let content = $2.replace(clearHeightWidth, (s1, s2, s3) => {
            if (s2 === "width") {
              width = s3;
            } else if (s2 === "height") {
              height = s3;
            }
            return "";
          });
          if (!hasViewBox.test($2)) {
            content += `viewBox="0 0 ${width} ${height}"`;
          }
          return `<symbol id="${idPerfix}-${dirent.name.replace(
            ".svg",
            ""
          )}" ${content}>`;
        })
        .replace("</svg>", "</symbol>");
      svgRes.push(svg);
    }
  }
  return svgRes;
}
export const svgBuilder = (path, perfix = "icon") => {
  if (path === "") return;
  idPerfix = perfix;
  const res = findSvgFile(path);
  return {
    name: "svg-transform",
    transformIndexHtml(html) {
      return html.replace(
        "<body>",
        `
          <body>
            <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position: absolute; width: 0; height: 0">
              ${res.join("")}
            </svg>
        `
      );
    },
  };
};