<template>
  <div class="editor-container" v-loading="loading" element-loading-text="插入中,请稍候..."  :style="{width,height}">
    <quill-editor
    ref="editor"
    class="quill-edito"
    :style="{height: `${parseInt(height) - 26}px`}"
    accept="image/gif,image/jpeg,image/jpg,image/png,image/svg"
    v-model="editorValue"
    :options="options">
    </quill-editor>
    <el-upload
    :action="uploadAction"
    :headers="headers"
    ref="upload"
    :name="uploadName"
    :data="uploadData"
    accept="image/gif,image/jpeg,image/jpg,image/png,image/svg"
    :before-upload="beforeUpload"
    :on-success="uploadSuccess"
    style="display: none;">
      <el-button size="small" id="imgInput">点击上传</el-button>
    </el-upload>
  </div>
</template>

<script>
import 'quill/dist/quill.core.css'
import 'quill/dist/quill.snow.css'
import 'quill/dist/quill.bubble.css'

import { quillEditor } from 'vue-quill-editor'
import { sources } from 'quill'

export default {
  components: {
    quillEditor
  },
  mounted() {
    // 页面加载完成后，为编辑器的图片图标绑定点击事件
    this.$refs['editor'].quill.getModule('toolbar').addHandler('image', this.imgHandler)
  },
  data() {
    return {
      // 富文本的内容
      editorValue: '',
      // 上传图片时的loading
      loading: false,
      headers: {
        Accept: 'application/json, text/javascript, */*; q=0.01',
        'X-Requested-With': 'XMLHttpRequest'
      },
    }
  },
  methods: {
    // 点击图片ICON触发事件
    imgHandler(state) {
      if (state) {
        const fileInput = document.getElementById('imgInput')
        fileInput.click()// 触发上传按钮
      }
    },
    // 上传前的回调
    beforeUpload(file) {
      this.loading = true
    },
    // 上传成功，插入到编辑器中
    uploadSuccess(response, file, fileList) {
      this.loading = false
      const imgUrl = response.data.url
      if (imgUrl && imgUrl.length > 0) {
        const addRange = this.$refs.editor.quill.getSelection()
        this.$refs.editor.quill.insertEmbed(addRange !== null ? addRange.index : 0, 'image', imgUrl, sources.USER)
      } else {
        this.$message.error('插入失败')
      }
    },
    // 上传失败
    uploadError() {
      this.loading = false
      this.$message.error('插入失败')
    }
  },
  props: {
    // 用于接收v-model的值
    value: {
      type: String
    },
    // 配置选项
    options: {
      type: Object,
      default: () => ({
        placeholder: '请输入内容',
        height: '100%',
        modules: {
          toolbar: [
            ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
            ["blockquote", "code-block"], // 引用  代码块
            [{ header: 1 }, { header: 2 }], // 1、2 级标题
            [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
            [{ script: "sub" }, { script: "super" }], // 上标/下标
            [{ indent: "-1" }, { indent: "+1" }], // 缩进
            // [{'direction': 'rtl'}],                         // 文本方向
            [{ size: ["small", false, "large", "huge"] }], // 字体大小
            [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
            [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
            [{ font: [] }], // 字体种类
            [{ align: [] }], // 对齐方式
            ["clean"], // 清除文本格式
            ["link", "image", "video"] // 链接、图片、视频
            // ['bold', 'italic', 'underline', 'strike', { 'font': [] }, { 'size': ['small', false, 'large', 'huge'] }],
            // ['link', 'blockquote', 'image'],
            // [{ 'list': 'ordered' }, { 'list': 'bullet' }, { 'align': '' }, { 'align': 'right' }, { 'align': 'center' }, { 'align': 'justify' }]
          ]
        }
      })
    },
    // 上传图片的地址
    uploadAction: {
      type: String,
    },
    // 上传图片的字段名
    uploadName: String,
    // 上传图片要传递的参数
    uploadData: Object,
    // 宽度
    width: {
      type: String,
      default: '700px',
    },
    // 高度
    height: {
      type: String,
      default: '300px',
    }
  },
  watch: {
    value(val) {
      this.editorValue = val
    },
    editorValue(val) {
      this.$emit('input', val)
    }
  }
}
</script>

<style lang="scss">
.editor-container {
  .quill-editor {
    width: 100%;
  }
}
.ql-snow .ql-picker-label::before {
    position: absolute;
}
.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=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-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>