| Index: third_party/WebKit/LayoutTests/compositing/overflow/composited-scroll-overlap-test.html
|
| diff --git a/third_party/WebKit/LayoutTests/compositing/overflow/composited-scroll-overlap-test.html b/third_party/WebKit/LayoutTests/compositing/overflow/composited-scroll-overlap-test.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..cdc17cb310a3b7401986e259233396e62f7014a7
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/compositing/overflow/composited-scroll-overlap-test.html
|
| @@ -0,0 +1,52 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/testharness.js"></script>
|
| +<script src="../../resources/testharnessreport.js"></script>
|
| +<style>
|
| +div::-webkit-scrollbar {
|
| + display: none;
|
| +}
|
| +</style>
|
| +<div id=scroller style="width: 400px; height: 400px; overflow-y: scroll; will-change: transform">
|
| + <div style="height: 400px"></div>
|
| + <div id=overlap style="backface-visibility: hidden; width: 100px; height: 100px; background-color: red"></div>
|
| + <div id=target style="position: relative; top: -50px; left: 50px; width: 100px; height: 100px; background-color: green"></div>
|
| +</div>
|
| +<div id="notscrolled" style="position: relative; width: 50px; height: 300px; background: lightgray"></div>
|
| +<script>
|
| +if (testRunner) {
|
| + testRunner.waitUntilDone();
|
| + testRunner.dumpAsText();
|
| +}
|
| +// Test passes if 'target' (green) is on top of 'overlap' (red).
|
| +// The actual test output is a layerization where 'overlap' has a composited layer,
|
| +// and 'target' does, but 'notscrolled'. 'target' has a composited layer because
|
| +// it overlaps 'overlap'. 'notscrolled' does not have one because it does not
|
| +// intersect the scroller and is outside of it.
|
| +
|
| +function drawsContentAndLayoutObject(layer) {
|
| + if (!layer["drawsContent"])
|
| + return false;
|
| + if (layer["name"].indexOf("Layout") == -1)
|
| + return false;
|
| + return true;
|
| +}
|
| +
|
| +onload = function() {
|
| + requestAnimationFrame(function() {
|
| + requestAnimationFrame(function() {
|
| + scroller.scrollTop = 400;
|
| + if (internals) {
|
| + var layers = JSON.parse(internals.layerTreeAsText(document))["layers"];
|
| + var desiredLayers = layers.filter(drawsContentAndLayoutObject);
|
| + assert_equals(desiredLayers.length, 4);
|
| + assert_not_equals(desiredLayers[0]["name"].indexOf("document"), -1, "document");
|
| + assert_not_equals(desiredLayers[1]["name"].indexOf("scroller"), -1, "scroller");
|
| + assert_not_equals(desiredLayers[2]["name"].indexOf("overlap"), -1, "overlap");
|
| + assert_not_equals(desiredLayers[3]["name"].indexOf("target"), -1, "target");
|
| + }
|
| + if (testRunner)
|
| + testRunner.notifyDone();
|
| + });
|
| + });
|
| +};
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2425873005:
Don't apply clips to children of composited-scrolling elements for overlap testing. (Closed)
