Method _blur

src/material/chips/chip-grid.ts:421–434

When blurred, mark the field as touched when focus moved outside the chip grid.

()

  /** When blurred, mark the field as touched when focus moved outside the chip grid. */
  _blur() {
    if (!this.disabled) {
      // Check whether the focus moved to chip input.
      // If the focus is not moved to chip input, mark the field as touched. If the focus moved
      // to chip input, do nothing.
      // Timeout is needed to wait for the focus() event trigger on chip input.
      setTimeout(() => {
        if (!this.focused) {
          this._propagateChanges();
          this._markAsTouched();
        }
      });
    }
  }

  /**
   * Removes the `tabindex` from the chip grid and resets it back afterwards, allowing the