| Index: LayoutTests/fast/scroll-behavior/scroll-customization/scrollstate-distribute-to-scroll-chain-descendant.html
|
| diff --git a/LayoutTests/fast/scroll-behavior/scroll-customization/scrollstate-distribute-to-scroll-chain-descendant.html b/LayoutTests/fast/scroll-behavior/scroll-customization/scrollstate-distribute-to-scroll-chain-descendant.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..e5dfadd325e21f4cbfe620648f99947c5703a17d
|
| --- /dev/null
|
| +++ b/LayoutTests/fast/scroll-behavior/scroll-customization/scrollstate-distribute-to-scroll-chain-descendant.html
|
| @@ -0,0 +1,55 @@
|
| +<!DOCTYPE html>
|
| +<html>
|
| +<head>
|
| +<meta charset="utf-8">
|
| +<title>ScrollState constructor behaves correctly</title>
|
| +<script src="../../../resources/testharness.js"></script>
|
| +<script src="../../../resources/testharnessreport.js"></script>
|
| +</head>
|
| +<body>
|
| +<script>
|
| +test(function() {
|
| + assert_true('ScrollState' in window, "'ScrollState' in window");
|
| + // TODO(tdresser): Don't rely on window.internals. See crbug.com/483091 for details.
|
| + assert_true(window.internals !== null, "'ScrollState' in window");
|
| +}, "These tests only work with scroll customization enabled.");
|
| +
|
| +var elementCount = 10;
|
| +var remainingNumberOfTimesToBeCalled = elementCount;
|
| +
|
| +var distributeScroll = function(scrollState) {
|
| + this.calledOrder = elementCount - remainingNumberOfTimesToBeCalled;
|
| + remainingNumberOfTimesToBeCalled--;
|
| + scrollState.distributeToScrollChainDescendant();
|
| +}
|
| +
|
| +var elements = [];
|
| +for (var i = 0; i < elementCount; ++i) {
|
| + var element = document.createElement("div");
|
| + element.creationOrder = i;
|
| + element.setDistributeScroll(distributeScroll.bind(element));
|
| + elements.push(element);
|
| +}
|
| +
|
| +if ('ScrollState' in window && window.internals) {
|
| + test(function() {
|
| + var scrollState = new ScrollState(100, 0, 0, 0, 0, false, false);
|
| + window.internals.setScrollChain(scrollState, elements);
|
| + scrollState.distributeToScrollChainDescendant();
|
| + assert_equals(0, remainingNumberOfTimesToBeCalled);
|
| + for (var i = 0; i < elementCount; ++i) {
|
| + assert_equals(elements[i].creationOrder, elements[i].calledOrder);
|
| + }
|
| + }, "distributeToScrollChainDescendant propagates correctly.");
|
| +
|
| + test(function() {
|
| + var scrollState = new ScrollState(100, 0, 0, 0, 0, false, false);
|
| + window.internals.setScrollChain(scrollState, []);
|
| + assert_equals(0, remainingNumberOfTimesToBeCalled);
|
| + scrollState.distributeToScrollChainDescendant();
|
| + assert_equals(0, remainingNumberOfTimesToBeCalled);
|
| + }, "distributeToScrollChainDescendant with empty scroll chain does nothing.");
|
| +}
|
| +</script>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 1057603002:
Expose scroll customization for touch to JS (behind REF). (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master