third_party/WebKit/LayoutTests/web-animations-api/animations-responsive-perspective.html

   1 <!DOCTYPE html>
   2 <script src="../resources/testharness.js"></script>
   3 <script src="../resources/testharnessreport.js"></script>
   4
   5 <div id='container'>
   6 <div id='element'></div>
   7 </div>
   8
   9 <script>
  10 var element = document.getElementById('element');
  11 var container = document.getElementById('container');
  12
  13 test(function() {
  14     element.style.fontSize = '10px';
  15     var player = element.animate([{perspective: '3em'}, {perspective: '5em'}], 10);
  16     player.pause();
  17     player.currentTime = 5;
  18     element.style.fontSize = '20px';
  19     assert_equals(getComputedStyle(element).perspective, '80px');
  20 }, 'perspective responsive to style changes');
  21
  22 test(function() {
  23     element.style.fontSize = '10px';
  24     var player = element.animate([{perspective: '40px'}, {perspective: 'calc(40px - 2em)'}], 10);
  25     player.pause();
  26
  27     player.currentTime = 5;
  28     element.style.fontSize = '40px';
  29     assert_equals(getComputedStyle(element).perspective, 'none');
  30
  31     player.currentTime = 7.5;
  32     assert_equals(getComputedStyle(element).perspective, 'none');
  33 }, 'perspective clamped to none');
  34
  35 </script>