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-rw-r--r--dom/events/test/test_legacy_event.html21
1 files changed, 7 insertions, 14 deletions
diff --git a/dom/events/test/test_legacy_event.html b/dom/events/test/test_legacy_event.html
index d772be106..b2105a6df 100644
--- a/dom/events/test/test_legacy_event.html
+++ b/dom/events/test/test_legacy_event.html
@@ -73,22 +73,15 @@ function triggerShortAnimation(node) {
node.style.animation = "anim1 1ms linear";
}
-// This function triggers a long animation with two iterations, which is
-// *nearly* at the end of its first iteration. It will hit the end of that
-// iteration (firing an event) almost immediately, 1ms in the future.
+// This function triggers a very short (10ms long) animation with many
+// iterations, which will cause a start event followed by an iteration event
+// on each subsequent tick, to fire.
//
-// NOTE: It's important that this animation have a *long* duration. If it were
-// short (e.g. 1ms duration), then we might jump past all its iterations in
-// a single refresh-driver tick. And if that were to happens, we'd *never* fire
-// any animationiteration events -- the CSS Animations spec says this event
-// must not be fired "...when an animationend event would fire at the same time"
-// (which would be the case in this example with a 1ms duration). So, to make
-// sure our event does fire, we use a long duration and a nearly-as-long
-// negative delay. This ensures we hit the end of the first iteration right
-// away, and that we don't risk hitting the end of the second iteration at the
-// same time.
+// NOTE: We need the many iterations since if an animation frame coincides
+// with the animation starting or ending we dispatch only the start or end
+// event and not the iteration event.
function triggerAnimationIteration(node) {
- node.style.animation = "anim1 300s -299.999s linear 2";
+ node.style.animation = "anim1 10ms linear 20000";
}
// GENERAL UTILITY FUNCTIONS