Method attach

src/cdk/drag-drop/preview-ref.ts:62–71

(parent: HTMLElement)

  ) {}

  attach(parent: HTMLElement): void {
    this._preview = this._createPreview();
    parent.appendChild(this._preview);

    // The null check is necessary for browsers that don't support the popover API.
    // Note that we use a string access for compatibility with Closure.
    if (supportsPopover(this._preview)) {
      this._preview['showPopover']();
    }
  }

  destroy(): void {
    this._preview.remove();