trigger()

in src/site/assets/js/bootstrap.esm.js [546:604]

• 46 lines of code
• 11 McCabe index (conditional complexity)

  trigger(element, event, args) {
    if (typeof event !== 'string' || !element) {
      return null;
    }

    const $ = getjQuery();
    const typeEvent = getTypeEvent(event);
    const inNamespace = event !== typeEvent;
    const isNative = nativeEvents.has(typeEvent);
    let jQueryEvent;
    let bubbles = true;
    let nativeDispatch = true;
    let defaultPrevented = false;
    let evt = null;

    if (inNamespace && $) {
      jQueryEvent = $.Event(event, args);
      $(element).trigger(jQueryEvent);
      bubbles = !jQueryEvent.isPropagationStopped();
      nativeDispatch = !jQueryEvent.isImmediatePropagationStopped();
      defaultPrevented = jQueryEvent.isDefaultPrevented();
    }

    if (isNative) {
      evt = document.createEvent('HTMLEvents');
      evt.initEvent(typeEvent, bubbles, true);
    } else {
      evt = new CustomEvent(event, {
        bubbles,
        cancelable: true
      });
    } // merge custom information in our event


    if (typeof args !== 'undefined') {
      Object.keys(args).forEach(key => {
        Object.defineProperty(evt, key, {
          get() {
            return args[key];
          }

        });
      });
    }

    if (defaultPrevented) {
      evt.preventDefault();
    }

    if (nativeDispatch) {
      element.dispatchEvent(evt);
    }

    if (evt.defaultPrevented && typeof jQueryEvent !== 'undefined') {
      jQueryEvent.preventDefault();
    }

    return evt;
  }