Method notify

src/core/core.plugins.js:35–54

* Calls enabled plugins for `chart` on the specified hook and with the given args. * This method immediately returns as soon as a plugin explicitly returns false. The * returned value can be used, for instance, to interrupt the current action. * @param {Chart} chart - The chart instance for wh

(chart, hook, args, filter)

	 * @returns {boolean} false if any of the plugins return false, else returns true.
	 */
  notify(chart, hook, args, filter) {
    if (hook === 'beforeInit') {
      this._init = this._createDescriptors(chart, true);
      this._notify(this._init, chart, 'install');
    }

    if (this._init === undefined) { // Do not trigger events before install
      return;
    }

    const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart);
    const result = this._notify(descriptors, chart, hook, args);

    if (hook === 'afterDestroy') {
      this._notify(descriptors, chart, 'stop');
      this._notify(this._init, chart, 'uninstall');
      this._init = undefined; // Do not trigger events after uninstall
    }
    return result;
  }

  /**
	 * @private