lineHeightMeasure property

@ViewChild.new('lineHeightMeasure') set lineHeightMeasure (ElementRef value)

Implementation

@ViewChild('lineHeightMeasure')
set lineHeightMeasure(ElementRef value) {
  // There's currently no strong use case of line height changing after it's
  // been measured. So we only measure it once when the view is rendered.
  _domService.scheduleRead(() {
    var isDestroyed = textareaEl == null;
    if (isDestroyed) return;

    var height = (value.nativeElement as Element).clientHeight;
    if (height != 0) {
      _inputLineHeight = height;
      _subscription?.cancel();
      _subscription = null;
      _changeDetector
        ..markForCheck()
        // TODO(google): remove after the bug is fixed.
        ..detectChanges();
    } else {
      _subscription ??= _domService.onLayoutChanged.listen((_) {
        lineHeightMeasure = value;
      });
    }
  });
}