<template>
  <div class="tinymce">
    <textarea :id="tinymceId"></textarea>
  </div>
</template>

<script>
import tinymce from 'tinymce'
import { getUUID } from '@/utils'
export default {
  data () {
    const tinymceId = 'tinymce' + getUUID()
    return {
      flag: true,
      tinymceId: tinymceId,
      myEditor: null
    }
  },
  props: {
    value: {
      default: ''
    },
    tinymceHeight: {
      default: 500,
      type: Number
    }
  },
  watch: {
    value (val) {
      if (this.flag) {
        this.setContent(val)
      }
      this.flag = true
    }
  },
  mounted () {
    this.init()
  },
  beforeDestroy () {
    tinymce.remove(`#${this.tinymceId}`)
  },
  methods: {
    init () {
      const self = this
      this.Editor = tinymce.init({
        // 默认配置
        ...this.getDefalutConfig(),

        // 图片上传
        images_upload_handler: (blobInfo, success, failure) => {
          if (blobInfo.blob().size > self.maxSize) {
            failure('文件体积过大')
          }
          const formData = new FormData()
          formData.append('editorFile', blobInfo.blob())
          this.$http({
            url: this.$http.adornUrl(`/admin/file/upload/tinymceEditor`),
            headers: {
              'Content-Type': 'multipart/form-data',
              'token': this.$cookie.get('token')
            },
            method: 'post',
            data: formData
          }).then(({ data }) => {
            success(data)
          }).catch(() => {
            failure('服务器出了点小差')
          })
        },

        // prop内传入的的config
        ...this.config,

        // 挂载的DOM对象
        selector: `#${this.tinymceId}`,
        setup: (editor) => {
          self.myEditor = editor
          editor.on(
            'init', () => {
              self.loading = false
              if (self.value) {
                editor.setContent(self.value)
              } else {
                editor.setContent('')
              }
            }
          )
          // 抛出 'input' 事件钩子，同步value数据
          editor.on(
            'input change undo redo execCommand', () => {
              self.flag = false
              self.$emit('input', editor.getContent())
            }
          )
        }
      })
    },
    getDefalutConfig () {
      return {
        // GLOBAL
        height: this.tinymceHeight,
        theme: 'modern',
        language: 'zh_CN',
        toolbar: `styleselect | fontselect | formatselect | fontsizeselect | forecolor backcolor | bold italic underline strikethrough | insertfile link image | table | alignleft aligncenter alignright alignjustify | outdent indent | numlist bullist | preview removeformat  hr | paste code | undo redo | fullscreen `, // 需要的工具栏
        plugins: `
            paste
            importcss
            image
            code
            table
            advlist
            fullscreen
            link
            media
            lists
            textcolor
            colorpicker
            hr
            preview
          `,
        // CONFIG
        forced_root_block: 'p',
        force_p_newlines: true,
        importcss_append: true,

        // CONFIG: ContentStyle 这块很重要， 在最后呈现的页面也要写入这个基本样式保证前后一致， `table`和`img`的问题基本就靠这个来填坑了
        content_style: `
            *                         { padding:0; margin:0; }
            html, body                { height:100%; }
            img                       { max-width:100%; display:block;height:auto; }
            a                         { text-decoration: none; }
            iframe                    { width: 100%; }
            p                         { line-height:1.6; margin: 0px; }
            table                     { word-wrap:break-word; word-break:break-all; max-width:100%; border:none; border-color:#999; }
            .mce-object-iframe        { width:100%; box-sizing:border-box; margin:0; padding:0; }
            ul,ol                     { list-style-position:inside; }
          `,

        insert_button_items: 'image link | inserttable',

        // CONFIG: Paste
        paste_retain_style_properties: 'all',
        paste_word_valid_elements: '*[*]',        // word需要它
        paste_data_images: true,                  // 粘贴的同时能把内容里的图片自动上传，非常强力的功能
        paste_convert_word_fake_lists: true,     // 插入word文档需要该属性
        paste_webkit_styles: 'all',
        paste_merge_formats: true,
        nonbreaking_force_tab: false,
        paste_auto_cleanup_on_paste: false,

        // CONFIG: Font
        fontsize_formats: '10px 11px 12px 14px 16px 18px 20px 24px',

        // CONFIG: StyleSelect
        style_formats: [
          {
            title: '首行缩进',
            block: 'p',
            styles: { 'text-indent': '2em' }
          },
          {
            title: '行高',
            items: [
              { title: '1', styles: { 'line-height': '1' }, inline: 'span' },
              { title: '1.5', styles: { 'line-height': '1.5' }, inline: 'span' },
              { title: '2', styles: { 'line-height': '2' }, inline: 'span' },
              { title: '2.5', styles: { 'line-height': '2.5' }, inline: 'span' },
              { title: '3', styles: { 'line-height': '3' }, inline: 'span' }
            ]
          }
        ],

        // FontSelect
        font_formats: `
            微软雅黑=微软雅黑;
            宋体=宋体;
            黑体=黑体;
            仿宋=仿宋;
            楷体=楷体;
            隶书=隶书;
            幼圆=幼圆;
            Andale Mono=andale mono,times;
            Arial=arial, helvetica,
            sans-serif;
            Arial Black=arial black, avant garde;
            Book Antiqua=book antiqua,palatino;
            Comic Sans MS=comic sans ms,sans-serif;
            Courier New=courier new,courier;
            Georgia=georgia,palatino;
            Helvetica=helvetica;
            Impact=impact,chicago;
            Symbol=symbol;
            Tahoma=tahoma,arial,helvetica,sans-serif;
            Terminal=terminal,monaco;
            Times New Roman=times new roman,times;
            Trebuchet MS=trebuchet ms,geneva;
            Verdana=verdana,geneva;
            Webdings=webdings;
            Wingdings=wingdings,zapf dingbats`,

        // Tab
        tabfocus_elements: ':prev,:next',
        object_resizing: true,

        // Image
        imagetools_toolbar: 'rotateleft rotateright | flipv fliph | editimage imageoptions'
      }
    },
    setContent (content) {
      if (!content) {
        return
      }
      this.myEditor.setContent(content)
    },
    getContent () {
      return this.myEditor.getContent()
    }
  }
}
</script>

<style lang="scss">
</style>
