src/third_party/WebKit/LayoutTests/screen_orientation/orientationchange-event.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <script src="../resources/testharness.js"></script>
   5 <script src="../resources/testharnessreport.js"></script>
   6 <script>
   7
   8 var orientations = [
   9   'portrait-primary',
  10   'portrait-secondary',
  11   'landscape-primary',
  12   'landscape-secondary'
  13 ];
  14
  15 var currentIndex = orientations.indexOf(window.screen.orientation);
  16 // Count the number of calls received from the EventHandler set on window.onorientationchange.
  17 var orientationChangeEventHandlerCalls = 0;
  18 // Count the number of calls received from the listener set with window.addEventListene().
  19 var orientationChangeEventListenerCalls = 0;
  20
  21 // TODO: window.onorientationchange is enabled on Android only. We will enable
  22 // it with ScreenOrientation later, at which point this test will fail. We will
  23 // then have to fix it.
  24 function todo_equals(actual, expected) {
  25   assert_not_equals(actual, expected, "TODO: if this fails, it means that something got fixed.");
  26 }
  27
  28 function getNextIndex() {
  29   return (currentIndex + 1) % orientations.length;
  30 }
  31
  32 window.onorientationchange = function() {
  33   orientationChangeEventHandlerCalls++;
  34 };
  35
  36 window.addEventListener('orientationchange', function() {
  37   orientationChangeEventListenerCalls++;
  38 });
  39
  40 for (var i = 0; i < 4; ++i) {
  41   test(function() {
  42     window.testRunner.setMockScreenOrientation(orientations[getNextIndex()]);
  43
  44     currentIndex = getNextIndex();
  45     assert_equals(screen.orientation, orientations[currentIndex]);
  46
  47     todo_equals(orientationChangeEventHandlerCalls, i + 1);
  48     assert_equals(orientationChangeEventListenerCalls, i + 1);
  49   }, "Test that orientationchange event is fired when the orientation changes");
  50 }
  51
  52 test(function() {
  53   window.testRunner.setMockScreenOrientation(orientations[currentIndex]);
  54   assert_equals(screen.orientation, orientations[currentIndex]);
  55
  56   todo_equals(orientationChangeEventHandlerCalls, 4);
  57   assert_equals(orientationChangeEventListenerCalls, 4);
  58 }, "Test that orientationchange event is not fired when the orientation does not change");
  59
  60 </script>
  61 </body>
  62 </html>