<template>
  <div class="editor-container">
    <!-- 图片上传组件:这里整合的是elementUI的组件-->
    <el-upload
      class="avatar-uploader"
      action
      name="file"
      :headers="header"
      :show-file-list="false"
      :on-success="uploadSuccess"
      :on-error="uploadError"
      :before-upload="beforeUpload"
    ></el-upload>
    <!-- 实际富文本显示区域 -->
    <quill-editor
      class="editor"
      v-model="content"
      ref="myQuillEditor"
      :options="editorOption"
      @blur="onEditorBlur($event)"
      @focus="onEditorFocus($event)"
      @change="onEditorChange($event)"
    ></quill-editor>
  </div>
</template>
<script>
// 需要引入的文件
import { quillEditor } from "vue-quill-editor";
import Quill from "quill"; //引入编辑器
import "quill/dist/quill.core.css";
import "quill/dist/quill.snow.css";
import "quill/dist/quill.bubble.css";
import { ImageDrop } from "quill-image-drop-module";
import imageResize from "quill-image-resize-module";
import QuillForm from "quill-form";
Quill.register("modules/imageDrop", ImageDrop);
Quill.register("modules/imageResize", imageResize);
Quill.register("modules/quillForm", QuillForm);
// 工具栏配置
const toolbarOptions = [
  ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
  ["blockquote", "code-block"], // 引用  代码块
  [{ header: 1 }, { header: 2 }], // 1、2 级标题
  [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
  [{ script: "sub" }, { script: "super" }], // 上标/下标
  [{ indent: "-1" }, { indent: "+1" }], // 缩进
  // [{'direction': 'rtl'}],                         // 文本方向
  [
    {
      size: [
        "8px",
        "10px",
        "12px",
        "14px",
        "16px",
        "18px",
        "20px",
        "22px",
        "24px",
        "26px",
        "32px",
        "48px"
      ]
    }
  ], // 字体大小
  [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
  [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
  [{ font: [] }], // 字体种类
  [{ align: [] }], // 对齐方式
  ["clean"], // 清除文本格式
  ["link", "image"], // 链接、图片、视频 ['link', 'image', 'video']
  ["insertText", "insertForm"]
];

export default {
  props: {
    /* 编辑器的内容 */
    value: {
      type: String
    },
    /* 图片大小 */
    maxSize: {
      type: Number,
      default: 1024 * 5 // kb
    }
  },
  components: {
    quillEditor
  },
  data() {
    let that = this;
    return {
      content: this.value,
      quillUpdateImg: false, // 根据图片上传状态来确定是否显示loading动画，刚开始是false,不显示
      editorOption: {
        theme: "snow", // or 'bubble'
        placeholder: "请在这里输入...",
        modules: {
          imageDrop: true,
          imageResize: {},
          toolbar: {
            container: toolbarOptions,
            handlers: {
              // 处理图片上传
              image: function(value) {
                if (value) {
                  // 触发input框选择图片文件
                  document.querySelector(".avatar-uploader input").click();
                } else {
                  this.quill.format("image", false);
                }
              },
              insertText: () => {
                this.content += '<b style="color: red;">你好</b>';
              },
              insertForm: function() {
                let section = this.quill.getSelection();
                console.log(this.quill);

                that
                  .$prompt("请输入表单描述", "提示", {
                    confirmButtonText: "确定",
                    cancelButtonText: "取消"
                  })
                  .then(({ value }) => {
                    console.log(section, section.index + section.length);
                    let inputValue = `____${value}____`;
                    this.quill.insertText(
                      section.index + section.length,
                      inputValue,
                      {
                        color: "#aaaaaa",
                        "background-color": "#dddddd",
                        size: "14px"
                      }
                    );
                    this.quill.setSelection(section.index + section.length);
                  });
              }
            }
          }
        }
      },
      //   serverUrl: `${window.SITE_CONFIG['apiURL']}/demo/upload/upload?type=1&token=${Cookies.get('token')}`, // 这里写你要上传的图片服务器地址
      //   imageBaseUrl: `${window.SITE_CONFIG["imgBaseUrl"]}`, // 这里写你要上传的图片服务器地址
      header: {
        // token: sessionStorage.token
      } // 有的图片服务器要求请求头需要有token
    };
  },
  methods: {
    onEditorBlur() {
      // 失去焦点事件
    },
    onEditorFocus() {
      // 获得焦点事件
    },
    onEditorChange() {
      // 内容改变事件
      this.$emit("input", this.content);
    },
    // 富文本图片上传前
    beforeUpload() {
      // 显示loading动画
      this.quillUpdateImg = true;
    },
    uploadSuccess(res, file) {
      // res为图片服务器返回的数据
      // 获取富文本组件实例
      let quill = this.$refs.myQuillEditor.quill;
      // 如果上传成功
      if (res.code === 0) {
        this.$message.success("图片上传成功");
        // 获取光标所在位置
        let length = quill.getSelection().index;
        // 插入图片  res.url为服务器返回的图片地址，需要拼接图片服务根地址
        quill.insertEmbed(length, "image", this.imageBaseUrl + res.data);
        // 调整光标到最后
        quill.setSelection(length + 1);
      } else {
        this.$message.warning("图片插入失败");
      }
      // loading动画消失
      this.quillUpdateImg = false;
    },
    // 富文本图片上传失败
    uploadError() {
      // loading动画消失
      this.quillUpdateImg = false;
      this.$message.warning("图片插入失败");
    },
    getHtml() {
      let reg = /<span[^>]*>____(.*)____<\/span>/gi;
      //   let res = reg.exec(this.content);
      let res = this.content.replace(reg, (str, $1) => {
        return `<input style="border-radius: 5px; background: #aaaaaa; color: #dddddd;" type="text" placeholder="${$1}">`;
      });

      return res;
    }
  }
};
</script>
<!-- 富文本样式，需要加哦，不然有问题 -->
<style>
.editor {
  line-height: normal !important;
  height: 100%;
  min-height: 500px;
}
.ql-container {
  height: 100%;
  min-height: 500px;
}
.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;
}
.agreement-input {
  padding: 10px 15px;
  color: #aaaaaa;
  font-size: 14px;
  border: #e6e6e6 1px solid;
  border-radius: 5px;
}
.ql-snow .ql-tooltip[data-mode="video"]::before {
  content: "请输入视频地址:";
}

.editor-container {
  background: #ffffff;
}
.avatar-uploader {
  display: none;
}

.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="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="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-insertText,
.ql-insertForm {
  width: auto !important;
  font-size: 16px;
}
.ql-snow .ql-insertText::before {
  display: inline-block;
  vertical-align: middle;
  content: "插入合同文本字段";
}

.ql-snow .ql-insertForm::before {
  display: inline-block;
  vertical-align: middle;
  content: "插入合同表单字段";
}
.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";
}
</style>
