LibTest/html/IFrameElement/marginEdge_A01_t01.dart

// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion final marginEdge
/// Access the dimensions and position of this element's content + padding +
/// border + margin box.
/// This returns a rectangle with the dimenions actually available for content
/// in this element, in pixels, regardless of this element's box-sizing
/// property. Unlike getBoundingClientRect, the dimensions of this rectangle
/// will return the same numerical height if the element is hidden or not.
/// @description Checks that if element is hidden it does not affect dimensions
/// of the rectangle.
/// @issue #17456

import "dart:html";
import "../../../Utils/expect.dart";

main() {
  var x = new Element.html('<iframe>Text</iframe>');
  document.body.append(x);

  var width = x.marginEdge.width;
  var height = x.marginEdge.height;
  Expect.isTrue(width > 0, 'width 1');
  Expect.isTrue(height > 0, 'height 1');

  x.hidden = true;
  Expect.equals(width, x.marginEdge.width, 'width 2');
  Expect.equals(height, x.marginEdge.height, 'height 2');
}