Vue 3 SFC for Editor.js using v-model with own custom vue component

Editorjs.vue

<template>
  <div class="editorjs" ref="htmlelement"></div>
</template>
<script setup>
import EditorJS from '@editorjs/editorjs';
import EmbedTool from '@editorjs/embed';
import ListTool from '@editorjs/list';
import ImageTool from '@editorjs/image';
import VideoTool from './editorjs/video.js';
import { onMounted, onUnmounted, ref, watch } from 'vue';

const htmlelement = ref(null);

const props = defineProps(['modelValue', 'placeholder'])
const emit = defineEmits(['update:modelValue'])


let editor;
let updatingModel = false;

// model -> view
function modelToView() {
  if (!props.modelValue) { return; }
  if (typeof props.modelValue === 'string') {
    editor.blocks.renderFromHTML(props.modelValue);
    return;
  }

  editor.render(props.modelValue);
}

// view -> model
function viewToModel(api, event) {
  updatingModel = true;

  editor.save().then((outputData) => {
    console.log(event, 'Saving completed: ', outputData)
    emit('update:modelValue', outputData);
  }).catch((error) => {
    console.log(event, 'Saving failed: ', error)
  }).finally(() => {
    updatingModel = false;
  })
}

onMounted(() => {
  editor = new EditorJS({
    holder: htmlelement.value,
    placeholder: props.placeholder,
    inlineToolbar: ['bold', 'italic', 'link'],
    tools: {
      embed: EmbedTool,
      list: ListTool,
      image: ImageTool,
      video: VideoTool,
    },
    minHeight: 'auto',
    data: props.modelValue,
    onReady: modelToView,
    onChange: viewToModel,
  })
})

watch(() => props.modelValue, () => {
  if (!updatingModel) {
    modelToView()
  }
})

onUnmounted(() => {
  editor.destroy()
})
</script>

video.js

// Video Block Tool, based on Image Tool
import ImageTool from '@editorjs/image';
// renders custom Videojs Vue component
import { render, h } from 'vue'
import Videojs from '../Videojs.vue'

const IconVideo = '<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 489.2 489.2"><path d="M439.6,0h-390C22.2,0,0,22.2,0,49.6v390c0,27.4,22.2,49.6,49.6,49.6h390c27.4,0,49.6-22.2,49.6-49.6V49.7 C489.3,22.3,467,0,439.6,0z M300.6,47.8h42.5v42.5h-42.5V47.8z M223.4,47.8h42.5v42.5h-42.5V47.8L223.4,47.8z M146.1,47.8h42.5 v42.5h-42.5V47.8z M111.3,441.6H68.8v-42.5h42.5V441.6z M111.3,90.3H68.8V47.8h42.5V90.3z M188.6,441.6h-42.5v-42.5h42.5V441.6z M265.8,441.6h-42.5v-42.5h42.5V441.6z M343.1,441.6h-42.5v-42.5h42.5V441.6z M352.5,256.7l-163.1,94.2c-9.2,5.3-20.8-1.3-20.8-12 V150.5c0-10.7,11.6-17.3,20.8-12l163.1,94.2C361.8,238,361.8,251.4,352.5,256.7z M420.4,441.6h-42.5v-42.5h42.5V441.6z M420.4,90.3 h-42.5V47.8h42.5V90.3z"/></svg>'

export default class Video extends ImageTool {
  static get toolbox() {
    return { title: 'Video', icon: IconVideo };
  }

  /**
   * @param {object} tool - tool properties got from editor.js
   * @param {ImageToolData} tool.data - previously saved data
   * @param {ImageConfig} tool.config - user config for Tool
   * @param {object} tool.api - Editor.js API
   * @param {boolean} tool.readOnly - read-only mode flag
   * @param {BlockAPI|{}} tool.block - current Block API
   */
  constructor({ data, config, api, readOnly, block }) {
    config.buttonContent = config.buttonContent || `${IconVideo} ${api.i18n.t('Select a Video')}`;
    config.types = config.types || 'video/*';
    super({ data, config, api, readOnly, block });
  }

  // original render() method from image tool is used
  // render() {
  // }

  /**
   * Set new video file (override default method)
   *
   * @private
   *
   * @param {object} file - uploaded file data
   */
  set image(file) {
    this._data.file = file || {};

    if (file && file.url) {
      // this.ui.fillImage(file.url);
      this.fillVideo(file.url);
    }
  }

  /**
   * Shows a video
   *
   * @param {string} url - video source
   * @returns {void}
   */
  fillVideo(url) {
    const vueComponent = h(Videojs, {
      src: url,
      class: this.ui.CSS.imageEl,
      'data-mutation-free': 'true',
      onLoadeddata: () => {
        this.ui.toggleStatus('filled');
        if (this.ui.nodes.imagePreloader) {
          this.ui.nodes.imagePreloader.style.backgroundImage = '';
        }
      }
    });

    render(vueComponent, this.ui.nodes.imageContainer);
  }

  static get pasteConfig() {
    return {
      tags: [{
        videojs: { src: true },
        video: { src: true }
      }],
      patterns: {
        video: /https?:\/\/\S+\.(mov|ogv|webm|mp4|m4v|m3u8)(\?[a-z0-9=]*)?$/i,
      },
      files: {
        mimeTypes: [ 'video/*' ],
      },
    };
  }

  async onPaste(event) {
    switch (event.type) {
      case 'tag': {
        const video = event.detail.data;
        // need getAttribute for custom HTML element videojs
        this.uploadUrl(video.getAttribute('src'));
        break;
      }
      case 'pattern': {
        const url = event.detail.data;
        this.uploadUrl(url);
        break;
      }
      case 'file': {
        const file = event.detail.file;
        this.uploadFile(file);
        break;
      }
    }
  }
}

Videojs.vue

<template>
  <video class="video-js" controls playsinline preload="auto" crossorigin="anonymous" ref="videoEl">
    <source :src="currentSrc">

    <p class="vjs-no-js">
      To view this video please enable JavaScript, and consider upgrading to a web browser that <a href="https://videojs.com/html5-video-support/" target="_blank">supports HTML5 video</a>
    </p>
  </video>
</template>
<script setup>
/**
 * VideoJs component
 * @see https://github.com/videojs/video.js
 */
import videojs from 'video.js'
import { ref, onMounted, onUnmounted } from 'vue'

// declare a ref to hold the element reference
// the name must match template ref value
const videoEl = ref(null)
let player;

const props = defineProps({
  src: {
    type: String,
    required: true
  },
  poster: String,
  subtitleUrls: Object,
  mandatory: Boolean,
})
const emit = defineEmits(['loadeddata', 'end'])
const currentSrc = ref(props.src)

/**
 * Manually setup video.js player
 */
onMounted(() => {
  const options = {
    fluid: true,
    poster: props.poster,
    playbackRates: [0.5, 0.75, 1, 1.25, 1.5]
  };

  player = videojs(videoEl.value, options);
  
  player.on('loadeddata', (e) => emit('loadeddata', e));

  player.on('ended', function () {
    emit('end', props.src);

    if(player.isFullscreen()) {
      player.exitFullscreen();
    }
  });
})

/**
 * Destroys the video player and does any necessary cleanup.
 * @see https://docs.videojs.com/player
 */
onUnmounted(() => {
  if (player) {
    player.dispose();
  }
})
</script>