onFocus()

in src/utils/FocusTrap.js [81:102]

• 17 lines of code
• 5 McCabe index (conditional complexity)

  onFocus(event) {
    // if the focus target is contained within the `focusContainer`
    if (this.focusContainer.contains(event.target)) {
      // save as a recent focus target
      this.lastFocusedElement = event.target;
    } else {
      // the focus target is outside of the container, stop the event.
      event.preventDefault();
      this.collectTabTargets();

      if (this.lastFocusedElement === this.lastTabTarget || !this.lastFocusedElement) {
        this.firstTabTarget.focus();
        this.lastFocusedElement = this.firstTabTarget;
        return;
      }

      if (this.lastFocusedElement === this.firstTabTarget) {
        this.lastTabTarget.focus();
        this.lastFocusedElement = this.lastTabTarget;
      }
    }
  }