<template>
  <div class='tinymce'>
    <editor id='tinymce' v-model='lookData.detail' :init='init'></editor>
    <div>
      <div class="imgInter" @click="showDialog()">插入图片</div>
    </div>
    <el-dialog
      title="插入图片"
      :visible.sync="dialogVisible"
      :modal-append-to-body="false"
      :close-on-click-modal="false"
      center
      :append-to-body="true"
      width="550px">
      <el-form label-width="80px">
        <el-form-item label="图片">
          <el-upload
            action="/api/public/upload"
            :http-request="uploadFile"
            :on-remove="removeFile"
            :before-upload="beforeAvatarUploadImg"
            drag
            :on-exceed="handleExceed"
            multiple
            :limit="1"
            :file-list="form.imgList">
            <i class="el-icon-upload"></i>
            <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
            <div class="el-upload__tip" slot="tip">只能上传png或jpg文件</div>
          </el-upload>
        </el-form-item>
        <el-form-item label="铺满">
          <el-switch
            v-model="form.big">
          </el-switch>
        </el-form-item>
        <el-form-item label="居中">
          <el-switch
            v-model="form.center">
          </el-switch>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="imgInter">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>


<script>
    import tinymce from 'tinymce/tinymce'
    import 'tinymce/themes/modern/theme'
    import Editor from '@tinymce/tinymce-vue'
    import 'tinymce/plugins/link'
    import 'tinymce/plugins/code'
    import 'tinymce/plugins/table'
    import 'tinymce/plugins/lists'
    import 'tinymce/plugins/contextmenu'
    import 'tinymce/plugins/wordcount'
    import 'tinymce/plugins/textcolor'
    import 'tinymce/plugins/colorpicker'
    import 'tinymce/plugins/preview'
    import 'tinymce/plugins/fullpage'
    import 'tinymce/plugins/textpattern'
    import 'tinymce/plugins/colorpicker'
    import 'tinymce/plugins/media'
    import {uploadFileApi} from "../../service/api";

    export default {
        name: 'tinymce',
        props:[
            'lookData'
        ],
        data () {
            return {
                radio:[],
                imageType:false,
                form:{
                    imgList:[],
                    big:false,
                    weight:'',
                    center:true
                },
                show:'',
                dialogVisible:false,
                init: {
                    toolbar:'bold italic underline strikethrough | fontselect | fontsizeselect | forecolor backcolor | alignleft aligncenter alignright alignjustify | bullist numlist | outdent indent blockquote | undo redo | link unlink image code | ',
                    language_url: '/static/tinymce/zh_CN.js',
                    language: 'zh_CN',
                    skin_url: '/static/tinymce/skins/lightgray',
                    height: 500,
                    plugins: 'preview textpattern colorpicker lists code colorpicker fullpage textcolor wordcount contextmenu media',
                    branding: false,
                }
            }
        },
        activated(){
            this.show = true
        },
        deactivated(){
        },
        mounted () {

        },
        methods:{
            beforeAvatarUploadImg(file){
                const isJPG = (file.type === 'image/jpeg' || file.type === 'image/png' );
                if (!isJPG) {
                    this.$message.error('上传头像图片只能是 JPG 或 PNG 格式!');
                }

                return isJPG;
            },
            imgInter(){
                if(this.form.imgList.length < 1){
                    this.$message({
                        type: 'error',
                        message: '请选择图片'
                    });
                    return false
                }
                let ImageStyle = '';
                if(this.form.big){
                    ImageStyle += 'width:100%;'
                }else{
                    ImageStyle += 'width:70%'
                }
                if(this.form.center){
                    ImageStyle = 'display:block;margin:auto'
                }
                let str= `<img src="${this.form.imgList[0].url}" style="${ImageStyle}"/>`;
                tinymce.activeEditor.insertContent(str);
                this.dialogVisible = false
            },
            uploadFile(a){
                uploadFileApi({file:a.file,type:'local'}).then(res=>{
                    this.$message({
                        type: 'success',
                        message: '上传成功!'
                    });
                    this.form.imgList = [{name:res.name,url:process.env.IMAGE_URL_HEAD + res.url}];
                })
            },
            showDialog(){
                this.dialogVisible = true;
                this.form={
                    imgList:[],
                    big:false,
                    weight:'',
                    center:true
                }
            },
            insertContent(content) {
                if (!content) {//如果插入的内容为空则返回
                    return;
                }
                let sel = null;
                if (document.selection) {//IE9以下
                    sel = document.selection;
                    sel.createRange().pasteHTML(content);
                } else {
                    sel = document.getElementById('tinymce_ifr').contentWindow.getSelection();
                    if (sel.rangeCount > 0) {
                        let range = sel.getRangeAt(0);      //获取选择范围
                        range.deleteContents();             //删除选中的内容
                        let el = document.createElement("div"); //创建一个空的div外壳
                        el.innerHTML = content;                 //设置div内容为我们想要插入的内容。
                        let frag = document.createDocumentFragment();//创建一个空白的文档片段，便于之后插入dom树

                        let node = el.firstChild;
                        let lastNode = frag.appendChild(node);
                        range.insertNode(frag);                 //设置选择范围的内容为插入的内容
                        let contentRange = range.cloneRange();  //克隆选区
                        contentRange.setStartAfter(lastNode);          //设置光标位置为插入内容的末尾
                        contentRange.collapse(true);                   //移动光标位置到末尾
                        sel.removeAllRanges();                  //移出所有选区
                        sel.addRange(contentRange);             //添加修改后的选区
                    }
                }
            },
            removeFile(){},
            handleExceed(){}
        },
        created:function(){
            tinymce.init({})
        },
        components: {Editor}
    }
</script>
<style scoped lang="less">
  @import "../../util/public";
  .tinymce{
    position: relative;
    .clear-both;
    .imgInter{
      position: absolute;
      display: inline-block;
      text-shadow: 0 1px 1px rgba(255,255,255,0.75);
      top: 3px;
      left: 330px;
      box-shadow: none;
      filter: none;
      padding: 4px 6px;
      border: 1px solid transparent;
      line-height: 1.4;
      margin: 0 5px;
      &:hover{
        border-color: #e2e4e7;
        cursor: pointer;
      }
    }
  }
</style>





