vue使用quill编辑器自定义附件上传方法，并根据上传附件名称生成链接

1、附件上传
需求：
在编辑器中上传 word,pdf,excel 等附件后，能根据上传附件的名称生成 link 链接，在展示页面能实现点击链接下载或预览附件，效果图如下:

实现方法：
quill 编辑器自身带有 link，但不满足需求，于是我修改了原有的 link 方法，使其适配目前的需求
1. 增加 el-upload 上传组件

 el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUploadFile"
      :on-success="handleUploadSuccessFile"
      :on-error="handleUploadErrorFile"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: none"
      ref="uploadFile"
      v-if="this.type =='url'"
    >
/el-upload>

2. 重写 link 方法

const Link = Quill.import("formats/link");

class FileBlot extends Link {
   
  
  static create (value) {
   
    let node = undefined;
    if (value && !value.href) {
   
      
      node = super.create(value)
    } else {
   
      
      node = super.create(value.href)
      node.href = value.href
      node.innerText = value.innerText
      
    }
    return node;
  }
}
FileBlot.blotName = "link" 
FileBlot.tagName = "A"
Quill.register(FileBlot) 

3. 给 link 生成的超链接按钮添加点击事件

	toolbar.addHandler("link", (value) => {
          if (value) {
            debugger
            console.log('this.$refs.upload',this.$refs.upload)
            this.$refs.uploadFile.$children[0].$refs.input.click();
          } else {
            this.quill.format("link", false);
          }
    });

4. 添加 upload 的 on-success、on-error 方法

 handleUploadSuccessFile(res, file) {
  
  if (res.code == 200) {
      
       let quill = this.Quill;
       
       let length = quill.getSelection().index;
       
        quill.insertEmbed(length, "link", 
        {
          href: process.env.VUE_APP_BASE_API + res.fileName, 
          innerText: res.originalFilename
       },
      );
     
     quill.setSelection(length + 1);
  } else {
    this.$message.error("文件插入失败");
  }
},
handleUploadErrorFile() {
      this.$message.error("文件插入失败");
},

完整代码

template>
  div>
    el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUpload"
      :on-success="handleUploadSuccess"
      :on-error="handleUploadError"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: none"
      ref="upload"
      v-if="this.type =='url'"
    >
    /el-upload>
    el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUploadVideo"
      :on-success="handleUploadSuccessVideo"
      :on-error="handleUploadErrorVideo"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: none"
      ref="uploadVideo"
      v-if="this.type =='url'"
    >
    /el-upload>
    el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUploadFile"
      :on-success="handleUploadSuccessFile"
      :on-error="handleUploadErrorFile"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: none"
      ref="uploadFile"
      v-if="this.type =='url'"
    >
    /el-upload>
    div class="editor" ref="editor" :style="styles">/div>
  /div>
/template>

script>
import Quill from "./quill";
import "quill/dist/quill.core.css";
import "quill/dist/quill.snow.css";
import "quill/dist/quill.bubble.css";
import { getToken } from "@/utils/auth";


const Link = Quill.import("formats/link");

class FileBlot extends Link {
   
  
  static create (value) {
   
    let node = undefined;
    if (value && !value.href) {
   
      
      node = super.create(value)
    } else {
   
      
      node = super.create(value.href)
      node.href = value.href
      node.innerText = value.innerText
      
    }
    return node;
  }
}
FileBlot.blotName = "link" 
FileBlot.tagName = "A"
Quill.register(FileBlot) 

export default {
  name: "Editor",
  props: {
    
    value: {
      type: String,
      default: "",
    },
    
    height: {
      type: Number,
      default: null,
    },
    
    minHeight: {
      type: Number,
      default: null,
    },
    
    readOnly: {
      type: Boolean,
      default: false,
    },
    
    fileSize: {
      type: Number,
      default: 50,
    },
    
    imageSize: {
      type: Number,
      default: 5,
    },
    videoSize: {
      type: Number,
      default: 500,
    },
    
    type: {
      type: String,
      default: "url",
    }
  },
  data() {
    return {
      uploadUrl: process.env.VUE_APP_BASE_API + "/common/upload", 
      headers: {
        Authorization: "Bearer" + getToken()
      },
      Quill: null,
      currentValue: "",
      options: {
        theme: "snow",
        bounds: document.body,
        debug: "warn",
        modules: {
          
          toolbar: [
            ["bold", "italic", "underline", "strike"],       
            ["blockquote", "code-block"],                    
            [{ list: "ordered" }, { list: "bullet" }],       
            [{ indent: "-1" }, { indent: "+1" }],            
            [{ size: ["20px","14px","16px", "large", "huge"] }],   
            [{ header: [1, 2, 3, 4, 5, 6, false] }],         
            [{ color: [] }, { background: [] }],             
            [{ align: [] }],                                 
            ["clean"],                                       
            ["link", "image", "video"]                       
          ],
        },
        placeholder: "请输入内容",
        readOnly: this.readOnly,
      },
    };
  },
  computed: {
    styles() {
      let style = {};
      if (this.minHeight) {
        style.minHeight = `${this.minHeight}px`;
      }
      if (this.height) {
        style.height = `${this.height}px`;
      }
      return style;
    },
  },
  watch: {
    value: {
      handler(val) {
        if (val !== this.currentValue) {
          this.currentValue = val === null ? "" : val;
          if (this.Quill) {
            this.Quill.pasteHTML(this.currentValue);
          }
        }
      },
      immediate: true,
    },
  },
  mounted() {
    this.init();
  },
  beforeDestroy() {
    this.Quill = null;
  },
  methods: {
    init() {
      const editor = this.$refs.editor;
      this.Quill = new Quill(editor, this.options);
      var Size = Quill.import("formats/size");
      Size.whitelist = ["14px","16px", "large","20px", "huge"];
      
      if (this.type == 'url') {
        let toolbar = this.Quill.getModule("toolbar");
        toolbar.addHandler("image", (value) => {
          if (value) {
            this.$refs.upload.$children[0].$refs.input.click();
          } else {
            this.quill.format("image", false);
          }
        });
        toolbar.addHandler("video", (value) => {
          if (value) {
            this.$refs.uploadVideo.$children[0].$refs.input.click();
          } else {
            this.quill.format("video", false);
          }
        });
        toolbar.addHandler("link", (value) => {
          if (value) {
            debugger
            console.log('this.$refs.upload',this.$refs.upload)
            this.$refs.uploadFile.$children[0].$refs.input.click();
          } else {
            this.quill.format("link", false);
          }
        });
      }
      this.Quill.pasteHTML(this.currentValue);
      this.Quill.on("text-change", (delta, oldDelta, source) => {
        const html = this.$refs.editor.children[0].innerHTML;
        const text = this.Quill.getText();
        const quill = this.Quill;
        this.currentValue = html;
        this.$emit("input", html);
        this.$emit("on-change", { html, text, quill });
      });
      this.Quill.on("text-change", (delta, oldDelta, source) => {
        this.$emit("on-text-change", delta, oldDelta, source);
      });
      this.Quill.on("selection-change", (range, oldRange, source) => {
        this.$emit("on-selection-change", range, oldRange, source);
      });
      this.Quill.on("editor-change", (eventName, ...args) => {
        this.$emit("on-editor-change", eventName, ...args);
      });
    },
    
    handleBeforeUpload(file) {
      const type = ["image/jpeg", "image/jpg", "image/png", "image/svg"];
      const isJPG = type.includes(file.type);
      
      if (!isJPG) {
        this.$message.error(`图片格式错误!`);
        return false;
      }
      
      if (this.imageSize) {
        const isLt = file.size / 1024 / 1024  this.imageSize;
        if (!isLt) {
          this.$message.error(`上传文件大小不能超过 ${this.imageSize} MB!`);
          return false;
        }
      }
      return true;
    },
    handleBeforeUploadVideo(file) {
      const type = ["video/mp4"];
      const isVideo = type.includes(file.type);
      
      if (!isVideo) {
        this.$message.error(`视频格式错误!`);
        return false;
      }
      
      if (this.videoSize) {
        const isLt = file.size / 1024 / 1024  this.videoSize;
        if (!isLt) {
          this.$message.error(`上传文件大小不能超过 ${this.videoSize} MB!`);
          return false;
        }
      }
      return true;
    },
    
    handleBeforeUploadFile(file) {
      
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024  this.fileSize;
        if (!isLt) {
          this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      return true;
    },
    handleUploadSuccess(res, file) {
      
      if (res.code == 200) {
        
        let quill = this.Quill;
        
        let length = quill.getSelection().index;
        
        quill.insertEmbed(length, "image", process.env.VUE_APP_BASE_API + res.fileName);
        
        quill.setSelection(length + 1);
      } else {
        this.$message.error("图片插入失败");
      }
    },
    handleUploadSuccessVideo(res, file) {
      
      if (res.code == 200) {
        
        let quill = this.Quill;
        
        let length = quill.getSelection().index;
        
        quill.insertEmbed(length, "video", process.env.VUE_APP_BASE_API + res.fileName);
        
        quill.setSelection(length + 1);
      } else {
        this.$message.error("视频插入失败");
      }
    },
    handleUploadSuccessFile(res, file) {
      
      if (res.code == 200) {
        
        let quill = this.Quill;
        
        let length = quill.getSelection().index;
        
        quill.insertEmbed(length, "link", 
          {
            href: process.env.VUE_APP_BASE_API + res.fileName, 
            innerText: res.originalFilename
          },
        );
        
        quill.setSelection(length + 1);
      } else {
        this.$message.error("文件插入失败");
      }
    },
    handleUploadError() {
      this.$message.error("图片插入失败");
    },
    handleUploadErrorVideo() {
      this.$message.error("视频插入失败");
    },
    handleUploadErrorFile() {
      this.$message.error("文件插入失败");
    },
  },
};
/script>

style>
.editor, .ql-toolbar {
  white-space: pre-wrap !important;
  line-height: normal !important;
}
.quill-img {
  display: none;
}
.ql-snow .ql-tooltip[data-mode="link"]::before {
  content: "请输入链接地址:";
}
.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0px;
  content: "保存";
  padding-right: 0px;
}
.ql-snow .ql-tooltip[data-mode="video"]::before {
  content: "请输入视频地址:";
}
.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: "14px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
  content: "10px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="14px"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="14px"]::before {
  content: "14px";
}
.ql-size-14px {
  font-size: 14px;
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="16px"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="16px"]::before {
  content: "16px";
}
.ql-size-16px {
  font-size: 16px;
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
  content: "18px";
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="20px"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="20px"]::before {
  content: "20px";
}
.ql-size-20px {
  font-size: 20px;
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
  content: "32px";
}


.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: "文本";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: "标题 1";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: "标题 2";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: "标题 3";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: "标题 4";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: "标题 5";
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: "标题 6";
}
.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: "标准字体";
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
  content: "衬线字体";
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
  content: "等宽字体";
}
.ql-video {
  width: 100%;
  height: 425px;
}
/style>