discourse/app/assets/javascripts/discourse/widgets/connector.js.es6

import deprecated from 'discourse-common/lib/deprecated';

export default class Connector {

  constructor(widget, opts) {
    this.widget = widget;
    this.opts = opts;
  }

  init() {
    const $elem = $(`<div class='widget-connector'></div>`);
    const elem = $elem[0];

    const { opts, widget } = this;
    Ember.run.next(() => {

      const mounted = widget._findView();

      if (opts.templateName) {
        deprecated(`Using a 'templateName' for a connector is deprecated. Use 'component' instead [${opts.templateName}]`);
      }

      const container = Ember.getOwner ? Ember.getOwner(mounted) : mounted.container;

      let view;

      if (opts.component) {
        const connector = widget.register.lookupFactory('component:connector-container');
        view = connector.create({
          layoutName: `components/${opts.component}`,
          model: widget.findAncestorModel()
        });
      }

      if (opts.templateName) {
        let context;
        if (opts.context === 'model') {
          const model = widget.findAncestorModel();
          context = model;
        }

        view = Ember.View.create({
          container: container || widget.register,
          templateName: opts.templateName,
          context
        });
      }

      if (view) {
        if (Ember.setOwner) {
          Ember.setOwner(view, Ember.getOwner(mounted));
        }
        mounted._connected.push(view);
        view.renderer.appendTo(view, $elem[0]);
      }
    });

    return elem;
  }

  update() { }
}

Connector.prototype.type = 'Widget';