Method autoFocus

src/material/sidenav/drawer.ts:264–278

()

   */
  @Input()
  get autoFocus(): AutoFocusTarget | string | boolean {
    const value = this._autoFocus;

    // Note that usually we don't allow autoFocus to be set to `first-tabbable` in `side` mode,
    // because we don't know how the sidenav is being used, but in some cases it still makes
    // sense to do it. The consumer can explicitly set `autoFocus`.
    if (value == null) {
      if (this.mode === 'side') {
        return 'dialog';
      } else {
        return 'first-tabbable';
      }
    }
    return value;
  }
  set autoFocus(value: AutoFocusTarget | string | BooleanInput) {
    if (value === 'true' || value === 'false' || value == null) {
      value = coerceBooleanProperty(value);