grapesjs/src/dom_components/model/ComponentImage.js

var Component = require('./Component');

module.exports = Component.extend(
  {
    defaults: {
      ...Component.prototype.defaults,
      type: 'image',
      tagName: 'img',
      src: '',
      void: 1,
      droppable: 0,
      editable: 1,
      highlightable: 0,
      resizable: 1,
      traits: ['alt'],

      // File to load asynchronously once the model is rendered
      file: ''
    },

    initialize(o, opt) {
      Component.prototype.initialize.apply(this, arguments);
      var attr = this.get('attributes');
      if (attr.src) this.set('src', attr.src);
    },

    initToolbar(...args) {
      Component.prototype.initToolbar.apply(this, args);
      const em = this.em;

      if (em) {
        var cmd = em.get('Commands');
        var cmdName = 'image-editor';

        // Add Image Editor button only if the default command exists
        if (cmd.has(cmdName)) {
          let hasButtonBool = false;
          var tb = this.get('toolbar');

          for (let i = 0; i < tb.length; i++) {
            if (tb[i].command === 'image-editor') {
              hasButtonBool = true;
              break;
            }
          }

          if (!hasButtonBool) {
            tb.push({
              attributes: { class: 'fa fa-pencil' },
              command: cmdName
            });
            this.set('toolbar', tb);
          }
        }
      }
    },

    /**
     * Returns object of attributes for HTML
     * @return {Object}
     * @private
     */
    getAttrToHTML(...args) {
      var attr = Component.prototype.getAttrToHTML.apply(this, args);
      delete attr.onmousedown;
      var src = this.get('src');
      if (src) attr.src = src;
      return attr;
    },

    /**
     * Parse uri
     * @param  {string} uri
     * @return {object}
     * @private
     */
    parseUri(uri) {
      var el = document.createElement('a');
      el.href = uri;
      var query = {};
      var qrs = el.search.substring(1).split('&');
      for (var i = 0; i < qrs.length; i++) {
        var pair = qrs[i].split('=');
        var name = decodeURIComponent(pair[0]);
        if (name) query[name] = decodeURIComponent(pair[1]);
      }
      return {
        hostname: el.hostname,
        pathname: el.pathname,
        protocol: el.protocol,
        search: el.search,
        hash: el.hash,
        port: el.port,
        query
      };
    }
  },
  {
    /**
     * Detect if the passed element is a valid component.
     * In case the element is valid an object abstracted
     * from the element will be returned
     * @param {HTMLElement}
     * @return {Object}
     * @private
     */
    isComponent(el) {
      var result = '';
      if (el.tagName == 'IMG') {
        result = { type: 'image' };
      }
      return result;
    }
  }
);