Content - 0520a7cf8056cf65a996ea953232544d34c56bb0 - d23bdc7/visual-viewport/viewport-read-size-causes-layout.html

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Tip revision: 35bf9454005e238dcac8129c9d4394ed592db8fd authored by Ovidio Henriquez on 21 March 2018, 23:50:55 UTC
bluetooth: FakeBluetoothChooserServerClient impl.

Tip revision: 35bf945

viewport-read-size-causes-layout.html

<!DOCTYPE html>
<meta name="viewport" content="width=device-width, minimum-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<style>
  html {
    height: 100%;
  }
</style>

<h4>This test checks that requesting the viewport size causes any pending layout to occur.</h4>
<script>
  async_test(function(t) {
    window.onload = t.step_func(function() {
      assert_equals(window.visualViewport.width, document.documentElement.clientWidth,
          "window.visualViewport.width should match the window width.");
      assert_equals(visualViewport.height, document.documentElement.clientHeight,
          "window.visualViewport.height should match the window height.");

      // Add overflow so scrollbars appear.
      document.body.style.width = "2000px";
      document.body.style.height = "2000px";

      var viewportWidth = window.visualViewport.width;
      var viewportHeight = window.visualViewport.height;

      assert_equals(viewportWidth, document.documentElement.clientWidth,
          "Reading viewport width should cause a layout and exclude the new scrollbar.");
      assert_equals(viewportHeight, document.documentElement.clientHeight,
          "Reading viewport height should cause a layout and exclude the new scrollbar.");
      t.done();
    });
  });
</script>

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