Method _blur

src/material/chips/chip-listbox.ts:294–303

When blurred, marks the field as touched when focus moved outside the chip listbox.

()

  /** When blurred, marks the field as touched when focus moved outside the chip listbox. */
  _blur() {
    if (!this.disabled) {
      // Wait to see if focus moves to an individual chip.
      setTimeout(() => {
        if (!this.focused) {
          this._markAsTouched();
        }
      });
    }
  }

  _keydown(event: KeyboardEvent) {
    if (event.keyCode === TAB) {