| Index: third_party/WebKit/LayoutTests/virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-added.html
|
| diff --git a/third_party/WebKit/LayoutTests/virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-added.html b/third_party/WebKit/LayoutTests/virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-added.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..1b906f77392b609983837be037550f710c1405de
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-added.html
|
| @@ -0,0 +1,59 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../../../../resources/js-test.js"></script>
|
| +<style>
|
| +body {
|
| + width: 2000px;
|
| + height: 2000px;
|
| +}
|
| +</style>
|
| +
|
| +<script>
|
| +var jsTestIsAsync = true;
|
| +
|
| +description("This test verifies that smooth scrolls initiated on the main " +
|
| + "thread add the appropriate main thread scrolling reason.");
|
| +
|
| +// From ScrollingCoordinator::mainThreadScrollingReasonsAsText.
|
| +var ANIMATING_TEXT = 'Animating scroll on main thread';
|
| +var RUNNING_ON_COMPOSITOR = 2;
|
| +
|
| +function finishTest() {
|
| + requestAnimationFrame(function() {
|
| + // Check that main thread scrolling reason is removed.
|
| + shouldBeTrue("internals.mainThreadScrollingReasons(document) == ''");
|
| + finishJSTest();
|
| + });
|
| +}
|
| +
|
| +function runTest() {
|
| + if (document.scrollingElement.scrollTop == 0) {
|
| + requestAnimationFrame(runTest);
|
| + } else {
|
| + // Check that initiated by main thread and running on the compositor.
|
| + shouldBeTrue("internals.getScrollAnimationState(document) " +
|
| + "== RUNNING_ON_COMPOSITOR");
|
| + // Check that main thread scrolling reason is added.
|
| + shouldBeTrue("internals.mainThreadScrollingReasons(document) " +
|
| + "== ANIMATING_TEXT");
|
| + shouldBecomeEqual("document.scrollingElement.scrollTop == 40",
|
| + "true", finishTest);
|
| + }
|
| +}
|
| +
|
| +onload = function() {
|
| + if (!window.eventSender || !window.internals) {
|
| + debug("This test requires window.eventSender.")
|
| + finishJSTest();
|
| + return;
|
| + }
|
| + internals.settings.setScrollAnimatorEnabled(true);
|
| +
|
| + document.scrollingElement.scrollTop = 0;
|
| +
|
| + // Scroll 1 ticks down.
|
| + eventSender.mouseMoveTo(20, 20);
|
| + eventSender.mouseScrollBy(0, -1);
|
| + runTest();
|
| +};
|
| +
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 1648293003:
Fix smooth scroll jump when switching scroll handling between MT and CC (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master