VT: End the transition only if animation is not running or paused

vmpstr · chromium-wpt-export-bot · commit 8ff38c54ff3f · 2023-01-10T13:36:54.000-08:00
Instead of effect IsCurrent, the spec says we should check animation run state and whether it's running or paused. This change aligns with the spec R=khushalsagar@chromium.org Fixed: 1392138 Change-Id: I7dcc316ee5c2d20b1e824e7a21a8f4a5859a8ee3 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4150115 Commit-Queue: Vladimir Levin <vmpstr@chromium.org> Reviewed-by: Khushal Sagar <khushalsagar@chromium.org> Cr-Commit-Position: refs/heads/main@{#1090996}
diff --git a/css/css-view-transitions/paused-animation-at-end.html b/css/css-view-transitions/paused-animation-at-end.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<title>View transitions: pause animation and set current time to the end</title>
+<link rel="help" href="https://www.w3.org/TR/css-view-transitions-1/">
+<link rel="author" href="mailto:vmpstr@chromium.org">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+:root { view-transition-name: unset; }
+#target {
+  width: 100px;
+  height: 100px;
+  contain: layout;
+  view-transition-name: target;
+}
+.one {
+  background: blue;
+}
+.two {
+  background: green;
+}
+</style>
+
+<div id=target class=one></div>
+
+<script>
+promise_test(async (t) => {
+  return new Promise((resolve, reject) => {
+    let transition = document.startViewTransition(() => {
+      target.classList.replace("one", "two");
+    });
+
+    transition.finished.then(() => reject("transition unexpectedly finished"));
+    transition.ready.then(() => {
+      document.getAnimations().forEach((animation) => {
+        animation.pause();
+        animation.currentTime = 1000;
+      });
+      step_timeout(resolve, 500);
+    });
+  });
+}, "view transition is not over if animations are paused");
+</script>
+
