grapesjs/src/dom_components/view/ComponentImageView.js

var Backbone = require('backbone');
var ComponentView = require('./ComponentView');

module.exports = ComponentView.extend({
  tagName: 'img',

  events: {
    dblclick: 'openModal',
    click: 'initResize'
  },

  initialize(o) {
    const model = this.model;
    ComponentView.prototype.initialize.apply(this, arguments);
    this.listenTo(model, 'change:src', this.updateSrc);
    this.listenTo(model, 'dblclick active', this.openModal);
    this.classEmpty = `${this.ppfx}plh-image`;
    const config = this.config;
    config.modal && (this.modal = config.modal);
    config.am && (this.am = config.am);
    this.fetchFile();
  },

  /**
   * Fetch file if exists
   */
  fetchFile() {
    const model = this.model;
    const file = model.get('file');

    if (file) {
      const fu = this.em.get('AssetManager').FileUploader();
      fu.uploadFile(
        {
          dataTransfer: { files: [file] }
        },
        res => {
          const obj = res && res.data && res.data[0];
          const src = obj && obj.src;
          src && model.set({ src });
        }
      );
      model.set('file', '');
    }
  },

  /**
   * Update src attribute
   * @private
   * */
  updateSrc() {
    const src = this.model.get('src');
    const el = this.$el;
    el.attr('src', src);
    el[src ? 'removeClass' : 'addClass'](this.classEmpty);
  },

  /**
   * Open dialog for image changing
   * @param  {Object}  e  Event
   * @private
   * */
  openModal(e) {
    var em = this.opts.config.em;
    var editor = em ? em.get('Editor') : '';

    if (editor && this.model.get('editable')) {
      editor.runCommand('open-assets', {
        target: this.model,
        types: ['image'],
        accept: 'image/*',
        onSelect() {
          editor.Modal.close();
          editor.AssetManager.setTarget(null);
        }
      });
    }
  },

  render() {
    this.updateAttributes();
    this.updateClasses();

    var actCls = this.$el.attr('class') || '';
    if (!this.model.get('src'))
      this.$el.attr('class', (actCls + ' ' + this.classEmpty).trim());

    // Avoid strange behaviours while try to drag
    this.$el.attr('onmousedown', 'return false');
    return this;
  }
});